author | david |
Tue, 29 Sep 2015 11:02:08 +0200 | |
changeset 33105 | 294e48b4f704 |
parent 32362 | a487889ff52d |
child 33212 | 906b3d079b13 |
permissions | -rw-r--r-- |
1 | 1 |
/* |
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* Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
|
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
|
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
|
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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||
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#include "precompiled.hpp" |
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#include "gc/shared/adaptiveSizePolicy.hpp" |
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#include "gc/shared/cardTableRS.hpp" |
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#include "gc/shared/collectorPolicy.hpp" |
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#include "gc/shared/gcLocker.inline.hpp" |
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#include "gc/shared/gcPolicyCounters.hpp" |
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#include "gc/shared/genCollectedHeap.hpp" |
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#include "gc/shared/generationSpec.hpp" |
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#include "gc/shared/space.hpp" |
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#include "gc/shared/vmGCOperations.hpp" |
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#include "memory/universe.hpp" |
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#include "runtime/arguments.hpp" |
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#include "runtime/globals_extension.hpp" |
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#include "runtime/handles.inline.hpp" |
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#include "runtime/java.hpp" |
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#include "runtime/thread.inline.hpp" |
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#include "runtime/vmThread.hpp" |
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#include "utilities/macros.hpp" |
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// CollectorPolicy methods |
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CollectorPolicy::CollectorPolicy() : |
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_space_alignment(0), |
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_heap_alignment(0), |
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_initial_heap_byte_size(InitialHeapSize), |
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_max_heap_byte_size(MaxHeapSize), |
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_min_heap_byte_size(Arguments::min_heap_size()), |
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_max_heap_size_cmdline(false), |
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_size_policy(NULL), |
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_should_clear_all_soft_refs(false), |
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_all_soft_refs_clear(false) |
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{} |
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|
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#ifdef ASSERT |
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void CollectorPolicy::assert_flags() { |
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assert(InitialHeapSize <= MaxHeapSize, "Ergonomics decided on incompatible initial and maximum heap sizes"); |
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assert(InitialHeapSize % _heap_alignment == 0, "InitialHeapSize alignment"); |
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assert(MaxHeapSize % _heap_alignment == 0, "MaxHeapSize alignment"); |
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} |
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|
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void CollectorPolicy::assert_size_info() { |
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assert(InitialHeapSize == _initial_heap_byte_size, "Discrepancy between InitialHeapSize flag and local storage"); |
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assert(MaxHeapSize == _max_heap_byte_size, "Discrepancy between MaxHeapSize flag and local storage"); |
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assert(_max_heap_byte_size >= _min_heap_byte_size, "Ergonomics decided on incompatible minimum and maximum heap sizes"); |
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assert(_initial_heap_byte_size >= _min_heap_byte_size, "Ergonomics decided on incompatible initial and minimum heap sizes"); |
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assert(_max_heap_byte_size >= _initial_heap_byte_size, "Ergonomics decided on incompatible initial and maximum heap sizes"); |
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assert(_min_heap_byte_size % _heap_alignment == 0, "min_heap_byte_size alignment"); |
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assert(_initial_heap_byte_size % _heap_alignment == 0, "initial_heap_byte_size alignment"); |
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assert(_max_heap_byte_size % _heap_alignment == 0, "max_heap_byte_size alignment"); |
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} |
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#endif // ASSERT |
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void CollectorPolicy::initialize_flags() { |
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assert(_space_alignment != 0, "Space alignment not set up properly"); |
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assert(_heap_alignment != 0, "Heap alignment not set up properly"); |
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assert(_heap_alignment >= _space_alignment, |
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"heap_alignment: " SIZE_FORMAT " less than space_alignment: " SIZE_FORMAT, |
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_heap_alignment, _space_alignment); |
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assert(_heap_alignment % _space_alignment == 0, |
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"heap_alignment: " SIZE_FORMAT " not aligned by space_alignment: " SIZE_FORMAT, |
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_heap_alignment, _space_alignment); |
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|
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if (FLAG_IS_CMDLINE(MaxHeapSize)) { |
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if (FLAG_IS_CMDLINE(InitialHeapSize) && InitialHeapSize > MaxHeapSize) { |
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vm_exit_during_initialization("Initial heap size set to a larger value than the maximum heap size"); |
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} |
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if (_min_heap_byte_size != 0 && MaxHeapSize < _min_heap_byte_size) { |
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vm_exit_during_initialization("Incompatible minimum and maximum heap sizes specified"); |
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} |
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_max_heap_size_cmdline = true; |
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} |
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// Check heap parameter properties |
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if (InitialHeapSize < M) { |
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vm_exit_during_initialization("Too small initial heap"); |
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} |
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if (_min_heap_byte_size < M) { |
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vm_exit_during_initialization("Too small minimum heap"); |
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} |
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|
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// User inputs from -Xmx and -Xms must be aligned |
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_min_heap_byte_size = align_size_up(_min_heap_byte_size, _heap_alignment); |
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size_t aligned_initial_heap_size = align_size_up(InitialHeapSize, _heap_alignment); |
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size_t aligned_max_heap_size = align_size_up(MaxHeapSize, _heap_alignment); |
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|
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// Write back to flags if the values changed |
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if (aligned_initial_heap_size != InitialHeapSize) { |
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FLAG_SET_ERGO(size_t, InitialHeapSize, aligned_initial_heap_size); |
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} |
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if (aligned_max_heap_size != MaxHeapSize) { |
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FLAG_SET_ERGO(size_t, MaxHeapSize, aligned_max_heap_size); |
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} |
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|
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if (FLAG_IS_CMDLINE(InitialHeapSize) && _min_heap_byte_size != 0 && |
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InitialHeapSize < _min_heap_byte_size) { |
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vm_exit_during_initialization("Incompatible minimum and initial heap sizes specified"); |
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} |
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if (!FLAG_IS_DEFAULT(InitialHeapSize) && InitialHeapSize > MaxHeapSize) { |
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FLAG_SET_ERGO(size_t, MaxHeapSize, InitialHeapSize); |
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} else if (!FLAG_IS_DEFAULT(MaxHeapSize) && InitialHeapSize > MaxHeapSize) { |
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FLAG_SET_ERGO(size_t, InitialHeapSize, MaxHeapSize); |
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if (InitialHeapSize < _min_heap_byte_size) { |
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_min_heap_byte_size = InitialHeapSize; |
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} |
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} |
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|
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_initial_heap_byte_size = InitialHeapSize; |
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_max_heap_byte_size = MaxHeapSize; |
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|
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FLAG_SET_ERGO(size_t, MinHeapDeltaBytes, align_size_up(MinHeapDeltaBytes, _space_alignment)); |
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|
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DEBUG_ONLY(CollectorPolicy::assert_flags();) |
1 | 137 |
} |
138 |
||
139 |
void CollectorPolicy::initialize_size_info() { |
|
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if (PrintGCDetails && Verbose) { |
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gclog_or_tty->print_cr("Minimum heap " SIZE_FORMAT " Initial heap " |
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SIZE_FORMAT " Maximum heap " SIZE_FORMAT, |
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_min_heap_byte_size, _initial_heap_byte_size, _max_heap_byte_size); |
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} |
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145 |
|
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DEBUG_ONLY(CollectorPolicy::assert_size_info();) |
1 | 147 |
} |
148 |
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bool CollectorPolicy::use_should_clear_all_soft_refs(bool v) { |
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bool result = _should_clear_all_soft_refs; |
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set_should_clear_all_soft_refs(false); |
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return result; |
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} |
1 | 154 |
|
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GenRemSet* CollectorPolicy::create_rem_set(MemRegion whole_heap) { |
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return new CardTableRS(whole_heap); |
1 | 157 |
} |
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void CollectorPolicy::cleared_all_soft_refs() { |
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// If near gc overhear limit, continue to clear SoftRefs. SoftRefs may |
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// have been cleared in the last collection but if the gc overhear |
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// limit continues to be near, SoftRefs should still be cleared. |
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if (size_policy() != NULL) { |
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_should_clear_all_soft_refs = size_policy()->gc_overhead_limit_near(); |
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} |
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_all_soft_refs_clear = true; |
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} |
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168 |
|
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size_t CollectorPolicy::compute_heap_alignment() { |
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// The card marking array and the offset arrays for old generations are |
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// committed in os pages as well. Make sure they are entirely full (to |
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// avoid partial page problems), e.g. if 512 bytes heap corresponds to 1 |
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// byte entry and the os page size is 4096, the maximum heap size should |
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// be 512*4096 = 2MB aligned. |
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175 |
|
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size_t alignment = GenRemSet::max_alignment_constraint(); |
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177 |
|
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178 |
if (UseLargePages) { |
22551 | 179 |
// In presence of large pages we have to make sure that our |
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// alignment is large page aware. |
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alignment = lcm(os::large_page_size(), alignment); |
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182 |
} |
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183 |
|
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184 |
return alignment; |
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185 |
} |
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186 |
|
22551 | 187 |
// GenCollectorPolicy methods |
1 | 188 |
|
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189 |
GenCollectorPolicy::GenCollectorPolicy() : |
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_min_young_size(0), |
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191 |
_initial_young_size(0), |
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_max_young_size(0), |
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_min_old_size(0), |
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194 |
_initial_old_size(0), |
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195 |
_max_old_size(0), |
29794 | 196 |
_gen_alignment(0), |
197 |
_young_gen_spec(NULL), |
|
198 |
_old_gen_spec(NULL) |
|
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{} |
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200 |
|
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201 |
size_t GenCollectorPolicy::scale_by_NewRatio_aligned(size_t base_size) { |
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return align_size_down_bounded(base_size / (NewRatio + 1), _gen_alignment); |
186
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203 |
} |
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204 |
|
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205 |
size_t GenCollectorPolicy::bound_minus_alignment(size_t desired_size, |
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206 |
size_t maximum_size) { |
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207 |
size_t max_minus = maximum_size - _gen_alignment; |
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208 |
return desired_size < max_minus ? desired_size : max_minus; |
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209 |
} |
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210 |
|
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211 |
|
1 | 212 |
void GenCollectorPolicy::initialize_size_policy(size_t init_eden_size, |
213 |
size_t init_promo_size, |
|
214 |
size_t init_survivor_size) { |
|
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215 |
const double max_gc_pause_sec = ((double) MaxGCPauseMillis) / 1000.0; |
1 | 216 |
_size_policy = new AdaptiveSizePolicy(init_eden_size, |
217 |
init_promo_size, |
|
218 |
init_survivor_size, |
|
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219 |
max_gc_pause_sec, |
1 | 220 |
GCTimeRatio); |
221 |
} |
|
222 |
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223 |
size_t GenCollectorPolicy::young_gen_size_lower_bound() { |
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224 |
// The young generation must be aligned and have room for eden + two survivors |
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225 |
return align_size_up(3 * _space_alignment, _gen_alignment); |
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226 |
} |
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227 |
|
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228 |
size_t GenCollectorPolicy::old_gen_size_lower_bound() { |
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229 |
return align_size_up(_space_alignment, _gen_alignment); |
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230 |
} |
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231 |
|
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|
232 |
#ifdef ASSERT |
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233 |
void GenCollectorPolicy::assert_flags() { |
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234 |
CollectorPolicy::assert_flags(); |
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235 |
assert(NewSize >= _min_young_size, "Ergonomics decided on a too small young gen size"); |
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236 |
assert(NewSize <= MaxNewSize, "Ergonomics decided on incompatible initial and maximum young gen sizes"); |
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237 |
assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize, "Ergonomics decided on incompatible maximum young gen and heap sizes"); |
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238 |
assert(NewSize % _gen_alignment == 0, "NewSize alignment"); |
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239 |
assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize % _gen_alignment == 0, "MaxNewSize alignment"); |
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240 |
assert(OldSize + NewSize <= MaxHeapSize, "Ergonomics decided on incompatible generation and heap sizes"); |
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241 |
assert(OldSize % _gen_alignment == 0, "OldSize alignment"); |
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242 |
} |
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243 |
|
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244 |
void GenCollectorPolicy::assert_size_info() { |
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245 |
CollectorPolicy::assert_size_info(); |
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246 |
// GenCollectorPolicy::initialize_size_info may update the MaxNewSize |
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247 |
assert(MaxNewSize < MaxHeapSize, "Ergonomics decided on incompatible maximum young and heap sizes"); |
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248 |
assert(NewSize == _initial_young_size, "Discrepancy between NewSize flag and local storage"); |
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249 |
assert(MaxNewSize == _max_young_size, "Discrepancy between MaxNewSize flag and local storage"); |
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250 |
assert(OldSize == _initial_old_size, "Discrepancy between OldSize flag and local storage"); |
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251 |
assert(_min_young_size <= _initial_young_size, "Ergonomics decided on incompatible minimum and initial young gen sizes"); |
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252 |
assert(_initial_young_size <= _max_young_size, "Ergonomics decided on incompatible initial and maximum young gen sizes"); |
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253 |
assert(_min_young_size % _gen_alignment == 0, "_min_young_size alignment"); |
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254 |
assert(_initial_young_size % _gen_alignment == 0, "_initial_young_size alignment"); |
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255 |
assert(_max_young_size % _gen_alignment == 0, "_max_young_size alignment"); |
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256 |
assert(_min_young_size <= bound_minus_alignment(_min_young_size, _min_heap_byte_size), |
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257 |
"Ergonomics made minimum young generation larger than minimum heap"); |
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258 |
assert(_initial_young_size <= bound_minus_alignment(_initial_young_size, _initial_heap_byte_size), |
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259 |
"Ergonomics made initial young generation larger than initial heap"); |
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260 |
assert(_max_young_size <= bound_minus_alignment(_max_young_size, _max_heap_byte_size), |
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"Ergonomics made maximum young generation lager than maximum heap"); |
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262 |
assert(_min_old_size <= _initial_old_size, "Ergonomics decided on incompatible minimum and initial old gen sizes"); |
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263 |
assert(_initial_old_size <= _max_old_size, "Ergonomics decided on incompatible initial and maximum old gen sizes"); |
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264 |
assert(_max_old_size % _gen_alignment == 0, "_max_old_size alignment"); |
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265 |
assert(_initial_old_size % _gen_alignment == 0, "_initial_old_size alignment"); |
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266 |
assert(_max_heap_byte_size <= (_max_young_size + _max_old_size), "Total maximum heap sizes must be sum of generation maximum sizes"); |
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267 |
assert(_min_young_size + _min_old_size <= _min_heap_byte_size, "Minimum generation sizes exceed minimum heap size"); |
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268 |
assert(_initial_young_size + _initial_old_size == _initial_heap_byte_size, "Initial generation sizes should match initial heap size"); |
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269 |
assert(_max_young_size + _max_old_size == _max_heap_byte_size, "Maximum generation sizes should match maximum heap size"); |
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270 |
} |
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#endif // ASSERT |
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272 |
|
1 | 273 |
void GenCollectorPolicy::initialize_flags() { |
274 |
CollectorPolicy::initialize_flags(); |
|
275 |
||
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assert(_gen_alignment != 0, "Generation alignment not set up properly"); |
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assert(_heap_alignment >= _gen_alignment, |
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278 |
"heap_alignment: " SIZE_FORMAT " less than gen_alignment: " SIZE_FORMAT, |
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_heap_alignment, _gen_alignment); |
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assert(_gen_alignment % _space_alignment == 0, |
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281 |
"gen_alignment: " SIZE_FORMAT " not aligned by space_alignment: " SIZE_FORMAT, |
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282 |
_gen_alignment, _space_alignment); |
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283 |
assert(_heap_alignment % _gen_alignment == 0, |
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284 |
"heap_alignment: " SIZE_FORMAT " not aligned by gen_alignment: " SIZE_FORMAT, |
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285 |
_heap_alignment, _gen_alignment); |
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286 |
|
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287 |
// All generational heaps have a youngest gen; handle those flags here |
1 | 288 |
|
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289 |
// Make sure the heap is large enough for two generations |
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290 |
size_t smallest_new_size = young_gen_size_lower_bound(); |
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291 |
size_t smallest_heap_size = align_size_up(smallest_new_size + old_gen_size_lower_bound(), |
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292 |
_heap_alignment); |
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293 |
if (MaxHeapSize < smallest_heap_size) { |
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294 |
FLAG_SET_ERGO(size_t, MaxHeapSize, smallest_heap_size); |
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295 |
_max_heap_byte_size = MaxHeapSize; |
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296 |
} |
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297 |
// If needed, synchronize _min_heap_byte size and _initial_heap_byte_size |
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298 |
if (_min_heap_byte_size < smallest_heap_size) { |
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299 |
_min_heap_byte_size = smallest_heap_size; |
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300 |
if (InitialHeapSize < _min_heap_byte_size) { |
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301 |
FLAG_SET_ERGO(size_t, InitialHeapSize, smallest_heap_size); |
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302 |
_initial_heap_byte_size = smallest_heap_size; |
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303 |
} |
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304 |
} |
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305 |
|
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306 |
// Make sure NewSize allows an old generation to fit even if set on the command line |
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307 |
if (FLAG_IS_CMDLINE(NewSize) && NewSize >= _initial_heap_byte_size) { |
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308 |
warning("NewSize was set larger than initial heap size, will use initial heap size."); |
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309 |
NewSize = bound_minus_alignment(NewSize, _initial_heap_byte_size); |
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310 |
} |
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311 |
|
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312 |
// Now take the actual NewSize into account. We will silently increase NewSize |
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313 |
// if the user specified a smaller or unaligned value. |
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314 |
size_t bounded_new_size = bound_minus_alignment(NewSize, MaxHeapSize); |
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315 |
bounded_new_size = MAX2(smallest_new_size, (size_t)align_size_down(bounded_new_size, _gen_alignment)); |
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316 |
if (bounded_new_size != NewSize) { |
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317 |
// Do not use FLAG_SET_ERGO to update NewSize here, since this will override |
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318 |
// if NewSize was set on the command line or not. This information is needed |
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319 |
// later when setting the initial and minimum young generation size. |
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320 |
NewSize = bounded_new_size; |
1 | 321 |
} |
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322 |
_min_young_size = smallest_new_size; |
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323 |
_initial_young_size = NewSize; |
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324 |
|
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325 |
if (!FLAG_IS_DEFAULT(MaxNewSize)) { |
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326 |
if (MaxNewSize >= MaxHeapSize) { |
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327 |
// Make sure there is room for an old generation |
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328 |
size_t smaller_max_new_size = MaxHeapSize - _gen_alignment; |
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329 |
if (FLAG_IS_CMDLINE(MaxNewSize)) { |
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330 |
warning("MaxNewSize (" SIZE_FORMAT "k) is equal to or greater than the entire " |
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331 |
"heap (" SIZE_FORMAT "k). A new max generation size of " SIZE_FORMAT "k will be used.", |
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332 |
MaxNewSize/K, MaxHeapSize/K, smaller_max_new_size/K); |
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333 |
} |
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334 |
FLAG_SET_ERGO(size_t, MaxNewSize, smaller_max_new_size); |
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335 |
if (NewSize > MaxNewSize) { |
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336 |
FLAG_SET_ERGO(size_t, NewSize, MaxNewSize); |
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337 |
_initial_young_size = NewSize; |
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338 |
} |
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339 |
} else if (MaxNewSize < _initial_young_size) { |
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340 |
FLAG_SET_ERGO(size_t, MaxNewSize, _initial_young_size); |
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341 |
} else if (!is_size_aligned(MaxNewSize, _gen_alignment)) { |
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342 |
FLAG_SET_ERGO(size_t, MaxNewSize, align_size_down(MaxNewSize, _gen_alignment)); |
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343 |
} |
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344 |
_max_young_size = MaxNewSize; |
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345 |
} |
1 | 346 |
|
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347 |
if (NewSize > MaxNewSize) { |
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348 |
// At this point this should only happen if the user specifies a large NewSize and/or |
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349 |
// a small (but not too small) MaxNewSize. |
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350 |
if (FLAG_IS_CMDLINE(MaxNewSize)) { |
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351 |
warning("NewSize (" SIZE_FORMAT "k) is greater than the MaxNewSize (" SIZE_FORMAT "k). " |
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352 |
"A new max generation size of " SIZE_FORMAT "k will be used.", |
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353 |
NewSize/K, MaxNewSize/K, NewSize/K); |
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354 |
} |
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355 |
FLAG_SET_ERGO(size_t, MaxNewSize, NewSize); |
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356 |
_max_young_size = MaxNewSize; |
1 | 357 |
} |
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358 |
|
1 | 359 |
if (SurvivorRatio < 1 || NewRatio < 1) { |
20399 | 360 |
vm_exit_during_initialization("Invalid young gen ratio specified"); |
1 | 361 |
} |
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362 |
|
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363 |
OldSize = MAX2(OldSize, old_gen_size_lower_bound()); |
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364 |
if (!is_size_aligned(OldSize, _gen_alignment)) { |
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365 |
// Setting OldSize directly to preserve information about the possible |
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366 |
// setting of OldSize on the command line. |
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367 |
OldSize = align_size_down(OldSize, _gen_alignment); |
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368 |
} |
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369 |
|
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370 |
if (FLAG_IS_CMDLINE(OldSize) && FLAG_IS_DEFAULT(MaxHeapSize)) { |
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|
371 |
// NewRatio will be used later to set the young generation size so we use |
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|
372 |
// it to calculate how big the heap should be based on the requested OldSize |
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|
373 |
// and NewRatio. |
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|
374 |
assert(NewRatio > 0, "NewRatio should have been set up earlier"); |
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|
375 |
size_t calculated_heapsize = (OldSize / NewRatio) * (NewRatio + 1); |
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|
376 |
|
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|
377 |
calculated_heapsize = align_size_up(calculated_heapsize, _heap_alignment); |
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|
378 |
FLAG_SET_ERGO(size_t, MaxHeapSize, calculated_heapsize); |
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|
379 |
_max_heap_byte_size = MaxHeapSize; |
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|
380 |
FLAG_SET_ERGO(size_t, InitialHeapSize, calculated_heapsize); |
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|
381 |
_initial_heap_byte_size = InitialHeapSize; |
15494
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|
382 |
} |
1 | 383 |
|
22551 | 384 |
// Adjust NewSize and OldSize or MaxHeapSize to match each other |
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|
385 |
if (NewSize + OldSize > MaxHeapSize) { |
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|
386 |
if (_max_heap_size_cmdline) { |
22551 | 387 |
// Somebody has set a maximum heap size with the intention that we should not |
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|
388 |
// exceed it. Adjust New/OldSize as necessary. |
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|
389 |
size_t calculated_size = NewSize + OldSize; |
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|
390 |
double shrink_factor = (double) MaxHeapSize / calculated_size; |
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|
391 |
size_t smaller_new_size = align_size_down((size_t)(NewSize * shrink_factor), _gen_alignment); |
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|
392 |
FLAG_SET_ERGO(size_t, NewSize, MAX2(young_gen_size_lower_bound(), smaller_new_size)); |
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|
393 |
_initial_young_size = NewSize; |
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|
394 |
|
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|
395 |
// OldSize is already aligned because above we aligned MaxHeapSize to |
21561
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|
396 |
// _heap_alignment, and we just made sure that NewSize is aligned to |
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|
397 |
// _gen_alignment. In initialize_flags() we verified that _heap_alignment |
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|
398 |
// is a multiple of _gen_alignment. |
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|
399 |
FLAG_SET_ERGO(size_t, OldSize, MaxHeapSize - NewSize); |
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|
400 |
} else { |
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changeset
|
401 |
FLAG_SET_ERGO(size_t, MaxHeapSize, align_size_up(NewSize + OldSize, _heap_alignment)); |
21561
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|
402 |
_max_heap_byte_size = MaxHeapSize; |
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|
403 |
} |
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changeset
|
404 |
} |
17389 | 405 |
|
24941
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changeset
|
406 |
// Update NewSize, if possible, to avoid sizing the young gen too small when only |
23851
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|
407 |
// OldSize is set on the command line. |
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|
408 |
if (FLAG_IS_CMDLINE(OldSize) && !FLAG_IS_CMDLINE(NewSize)) { |
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changeset
|
409 |
if (OldSize < _initial_heap_byte_size) { |
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|
410 |
size_t new_size = _initial_heap_byte_size - OldSize; |
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changeset
|
411 |
// Need to compare against the flag value for max since _max_young_size |
23851
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|
412 |
// might not have been set yet. |
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changeset
|
413 |
if (new_size >= _min_young_size && new_size <= MaxNewSize) { |
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changeset
|
414 |
FLAG_SET_ERGO(size_t, NewSize, new_size); |
24941
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changeset
|
415 |
_initial_young_size = NewSize; |
23851
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|
416 |
} |
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|
417 |
} |
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|
418 |
} |
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|
419 |
|
1 | 420 |
always_do_update_barrier = UseConcMarkSweepGC; |
421 |
||
24353
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changeset
|
422 |
DEBUG_ONLY(GenCollectorPolicy::assert_flags();) |
1 | 423 |
} |
424 |
||
186
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changeset
|
425 |
// Values set on the command line win over any ergonomically |
32e6c95f8d9b
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1
diff
changeset
|
426 |
// set command line parameters. |
32e6c95f8d9b
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
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1
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changeset
|
427 |
// Ergonomic choice of parameters are done before this |
32e6c95f8d9b
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1
diff
changeset
|
428 |
// method is called. Values for command line parameters such as NewSize |
32e6c95f8d9b
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parents:
1
diff
changeset
|
429 |
// and MaxNewSize feed those ergonomic choices into this method. |
32e6c95f8d9b
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
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parents:
1
diff
changeset
|
430 |
// This method makes the final generation sizings consistent with |
32e6c95f8d9b
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
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parents:
1
diff
changeset
|
431 |
// themselves and with overall heap sizings. |
32e6c95f8d9b
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
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1
diff
changeset
|
432 |
// In the absence of explicitly set command line flags, policies |
32e6c95f8d9b
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
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parents:
1
diff
changeset
|
433 |
// such as the use of NewRatio are used to size the generation. |
24353
148147d21135
8027643: Merge GenCollectorPolicy and TwoGenerationCollectorPolicy
jwilhelm
parents:
23851
diff
changeset
|
434 |
|
148147d21135
8027643: Merge GenCollectorPolicy and TwoGenerationCollectorPolicy
jwilhelm
parents:
23851
diff
changeset
|
435 |
// Minimum sizes of the generations may be different than |
148147d21135
8027643: Merge GenCollectorPolicy and TwoGenerationCollectorPolicy
jwilhelm
parents:
23851
diff
changeset
|
436 |
// the initial sizes. An inconsistency is permitted here |
148147d21135
8027643: Merge GenCollectorPolicy and TwoGenerationCollectorPolicy
jwilhelm
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23851
diff
changeset
|
437 |
// in the total size that can be specified explicitly by |
148147d21135
8027643: Merge GenCollectorPolicy and TwoGenerationCollectorPolicy
jwilhelm
parents:
23851
diff
changeset
|
438 |
// command line specification of OldSize and NewSize and |
148147d21135
8027643: Merge GenCollectorPolicy and TwoGenerationCollectorPolicy
jwilhelm
parents:
23851
diff
changeset
|
439 |
// also a command line specification of -Xms. Issue a warning |
148147d21135
8027643: Merge GenCollectorPolicy and TwoGenerationCollectorPolicy
jwilhelm
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23851
diff
changeset
|
440 |
// but allow the values to pass. |
1 | 441 |
void GenCollectorPolicy::initialize_size_info() { |
442 |
CollectorPolicy::initialize_size_info(); |
|
443 |
||
24941
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8042298: Remove the names gen0 and gen1 from the GC code
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changeset
|
444 |
_initial_young_size = NewSize; |
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
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diff
changeset
|
445 |
_max_young_size = MaxNewSize; |
4ebbe176a7b1
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changeset
|
446 |
_initial_old_size = OldSize; |
186
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1
diff
changeset
|
447 |
|
24941
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diff
changeset
|
448 |
// Determine maximum size of the young generation. |
186
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diff
changeset
|
449 |
|
24940
c2b4c8e32c2f
8026396: Remove information duplication in the collector policy
jwilhelm
parents:
24424
diff
changeset
|
450 |
if (FLAG_IS_DEFAULT(MaxNewSize)) { |
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
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changeset
|
451 |
_max_young_size = scale_by_NewRatio_aligned(_max_heap_byte_size); |
186
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diff
changeset
|
452 |
// Bound the maximum size by NewSize below (since it historically |
1 | 453 |
// would have been NewSize and because the NewRatio calculation could |
454 |
// yield a size that is too small) and bound it by MaxNewSize above. |
|
186
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diff
changeset
|
455 |
// Ergonomics plays here by previously calculating the desired |
32e6c95f8d9b
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
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parents:
1
diff
changeset
|
456 |
// NewSize and MaxNewSize. |
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
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changeset
|
457 |
_max_young_size = MIN2(MAX2(_max_young_size, _initial_young_size), MaxNewSize); |
186
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changeset
|
458 |
} |
32e6c95f8d9b
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
1
diff
changeset
|
459 |
|
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
460 |
// Given the maximum young size, determine the initial and |
4ebbe176a7b1
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changeset
|
461 |
// minimum young sizes. |
186
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diff
changeset
|
462 |
|
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
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parents:
23224
diff
changeset
|
463 |
if (_max_heap_byte_size == _initial_heap_byte_size) { |
24940
c2b4c8e32c2f
8026396: Remove information duplication in the collector policy
jwilhelm
parents:
24424
diff
changeset
|
464 |
// The maximum and initial heap sizes are the same so the generation's |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
465 |
// initial size must be the same as it maximum size. Use NewSize as the |
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
466 |
// size if set on command line. |
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
467 |
_max_young_size = FLAG_IS_CMDLINE(NewSize) ? NewSize : _max_young_size; |
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
468 |
_initial_young_size = _max_young_size; |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
469 |
|
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
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parents:
23224
diff
changeset
|
470 |
// Also update the minimum size if min == initial == max. |
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
471 |
if (_max_heap_byte_size == _min_heap_byte_size) { |
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
472 |
_min_young_size = _max_young_size; |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
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parents:
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changeset
|
473 |
} |
186
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1
diff
changeset
|
474 |
} else { |
22776
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
475 |
if (FLAG_IS_CMDLINE(NewSize)) { |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
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parents:
23224
diff
changeset
|
476 |
// If NewSize is set on the command line, we should use it as |
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
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parents:
23224
diff
changeset
|
477 |
// the initial size, but make sure it is within the heap bounds. |
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
478 |
_initial_young_size = |
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
479 |
MIN2(_max_young_size, bound_minus_alignment(NewSize, _initial_heap_byte_size)); |
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
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changeset
|
480 |
_min_young_size = bound_minus_alignment(_initial_young_size, _min_heap_byte_size); |
186
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diff
changeset
|
481 |
} else { |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
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parents:
23224
diff
changeset
|
482 |
// For the case where NewSize is not set on the command line, use |
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
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parents:
23224
diff
changeset
|
483 |
// NewRatio to size the initial generation size. Use the current |
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
484 |
// NewSize as the floor, because if NewRatio is overly large, the resulting |
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
485 |
// size can be too small. |
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
486 |
_initial_young_size = |
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
487 |
MIN2(_max_young_size, MAX2(scale_by_NewRatio_aligned(_initial_heap_byte_size), NewSize)); |
186
32e6c95f8d9b
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
1
diff
changeset
|
488 |
} |
21561
c619b1cb4554
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
21560
diff
changeset
|
489 |
} |
c619b1cb4554
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
21560
diff
changeset
|
490 |
|
186
32e6c95f8d9b
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
1
diff
changeset
|
491 |
if (PrintGCDetails && Verbose) { |
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
492 |
gclog_or_tty->print_cr("1: Minimum young " SIZE_FORMAT " Initial young " |
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
493 |
SIZE_FORMAT " Maximum young " SIZE_FORMAT, |
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
494 |
_min_young_size, _initial_young_size, _max_young_size); |
186
32e6c95f8d9b
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
1
diff
changeset
|
495 |
} |
21561
c619b1cb4554
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
21560
diff
changeset
|
496 |
|
186
32e6c95f8d9b
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
1
diff
changeset
|
497 |
// At this point the minimum, initial and maximum sizes |
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
498 |
// of the overall heap and of the young generation have been determined. |
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
499 |
// The maximum old size can be determined from the maximum young |
22551 | 500 |
// and maximum heap size since no explicit flags exist |
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
501 |
// for setting the old generation maximum. |
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
502 |
_max_old_size = MAX2(_max_heap_byte_size - _max_young_size, _gen_alignment); |
21561
c619b1cb4554
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
21560
diff
changeset
|
503 |
|
186
32e6c95f8d9b
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
1
diff
changeset
|
504 |
// If no explicit command line flag has been set for the |
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
505 |
// old generation size, use what is left. |
21561
c619b1cb4554
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
21560
diff
changeset
|
506 |
if (!FLAG_IS_CMDLINE(OldSize)) { |
c619b1cb4554
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
21560
diff
changeset
|
507 |
// The user has not specified any value but the ergonomics |
c619b1cb4554
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
21560
diff
changeset
|
508 |
// may have chosen a value (which may or may not be consistent |
186
32e6c95f8d9b
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
1
diff
changeset
|
509 |
// with the overall heap size). In either case make |
32e6c95f8d9b
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
1
diff
changeset
|
510 |
// the minimum, maximum and initial sizes consistent |
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
511 |
// with the young sizes and the overall heap sizes. |
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
512 |
_min_old_size = _gen_alignment; |
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
513 |
_initial_old_size = MIN2(_max_old_size, MAX2(_initial_heap_byte_size - _initial_young_size, _min_old_size)); |
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
514 |
// _max_old_size has already been made consistent above. |
186
32e6c95f8d9b
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
1
diff
changeset
|
515 |
} else { |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
516 |
// OldSize has been explicitly set on the command line. Use it |
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
517 |
// for the initial size but make sure the minimum allow a young |
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
518 |
// generation to fit as well. |
186
32e6c95f8d9b
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
1
diff
changeset
|
519 |
// If the user has explicitly set an OldSize that is inconsistent |
32e6c95f8d9b
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
1
diff
changeset
|
520 |
// with other command line flags, issue a warning. |
22551 | 521 |
// The generation minimums and the overall heap minimum should |
21561
c619b1cb4554
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
21560
diff
changeset
|
522 |
// be within one generation alignment. |
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
523 |
if (_initial_old_size > _max_old_size) { |
186
32e6c95f8d9b
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
1
diff
changeset
|
524 |
warning("Inconsistency between maximum heap size and maximum " |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
525 |
"generation sizes: using maximum heap = " SIZE_FORMAT |
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
526 |
" -XX:OldSize flag is being ignored", |
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
527 |
_max_heap_byte_size); |
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
528 |
_initial_old_size = _max_old_size; |
8687
264727307495
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
7419
diff
changeset
|
529 |
} |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
530 |
|
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
531 |
_min_old_size = MIN2(_initial_old_size, _min_heap_byte_size - _min_young_size); |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
532 |
} |
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
533 |
|
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
534 |
// The initial generation sizes should match the initial heap size, |
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
535 |
// if not issue a warning and resize the generations. This behavior |
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
536 |
// differs from JDK8 where the generation sizes have higher priority |
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
537 |
// than the initial heap size. |
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
538 |
if ((_initial_old_size + _initial_young_size) != _initial_heap_byte_size) { |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
539 |
warning("Inconsistency between generation sizes and heap size, resizing " |
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
540 |
"the generations to fit the heap."); |
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
541 |
|
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
542 |
size_t desired_young_size = _initial_heap_byte_size - _initial_old_size; |
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
543 |
if (_initial_heap_byte_size < _initial_old_size) { |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
544 |
// Old want all memory, use minimum for young and rest for old |
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
545 |
_initial_young_size = _min_young_size; |
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
546 |
_initial_old_size = _initial_heap_byte_size - _min_young_size; |
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
547 |
} else if (desired_young_size > _max_young_size) { |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
548 |
// Need to increase both young and old generation |
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
549 |
_initial_young_size = _max_young_size; |
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
550 |
_initial_old_size = _initial_heap_byte_size - _max_young_size; |
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
551 |
} else if (desired_young_size < _min_young_size) { |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
552 |
// Need to decrease both young and old generation |
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
553 |
_initial_young_size = _min_young_size; |
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
554 |
_initial_old_size = _initial_heap_byte_size - _min_young_size; |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
555 |
} else { |
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
556 |
// The young generation boundaries allow us to only update the |
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
557 |
// young generation. |
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
558 |
_initial_young_size = desired_young_size; |
1 | 559 |
} |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
560 |
|
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
561 |
if (PrintGCDetails && Verbose) { |
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
562 |
gclog_or_tty->print_cr("2: Minimum young " SIZE_FORMAT " Initial young " |
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
563 |
SIZE_FORMAT " Maximum young " SIZE_FORMAT, |
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
564 |
_min_young_size, _initial_young_size, _max_young_size); |
186
32e6c95f8d9b
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
1
diff
changeset
|
565 |
} |
1 | 566 |
} |
22551 | 567 |
|
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
568 |
// Write back to flags if necessary. |
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
569 |
if (NewSize != _initial_young_size) { |
29697
92501504191b
8074459: Flags handling memory sizes should be of type size_t
jwilhelm
parents:
29684
diff
changeset
|
570 |
FLAG_SET_ERGO(size_t, NewSize, _initial_young_size); |
21561
c619b1cb4554
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
21560
diff
changeset
|
571 |
} |
c619b1cb4554
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
21560
diff
changeset
|
572 |
|
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
573 |
if (MaxNewSize != _max_young_size) { |
29697
92501504191b
8074459: Flags handling memory sizes should be of type size_t
jwilhelm
parents:
29684
diff
changeset
|
574 |
FLAG_SET_ERGO(size_t, MaxNewSize, _max_young_size); |
21561
c619b1cb4554
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
21560
diff
changeset
|
575 |
} |
c619b1cb4554
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
21560
diff
changeset
|
576 |
|
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
577 |
if (OldSize != _initial_old_size) { |
29697
92501504191b
8074459: Flags handling memory sizes should be of type size_t
jwilhelm
parents:
29684
diff
changeset
|
578 |
FLAG_SET_ERGO(size_t, OldSize, _initial_old_size); |
21561
c619b1cb4554
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
21560
diff
changeset
|
579 |
} |
c619b1cb4554
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
21560
diff
changeset
|
580 |
|
186
32e6c95f8d9b
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
1
diff
changeset
|
581 |
if (PrintGCDetails && Verbose) { |
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
582 |
gclog_or_tty->print_cr("Minimum old " SIZE_FORMAT " Initial old " |
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
583 |
SIZE_FORMAT " Maximum old " SIZE_FORMAT, |
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
584 |
_min_old_size, _initial_old_size, _max_old_size); |
186
32e6c95f8d9b
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
1
diff
changeset
|
585 |
} |
21561
c619b1cb4554
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
21560
diff
changeset
|
586 |
|
24353
148147d21135
8027643: Merge GenCollectorPolicy and TwoGenerationCollectorPolicy
jwilhelm
parents:
23851
diff
changeset
|
587 |
DEBUG_ONLY(GenCollectorPolicy::assert_size_info();) |
1 | 588 |
} |
589 |
||
590 |
HeapWord* GenCollectorPolicy::mem_allocate_work(size_t size, |
|
591 |
bool is_tlab, |
|
592 |
bool* gc_overhead_limit_was_exceeded) { |
|
593 |
GenCollectedHeap *gch = GenCollectedHeap::heap(); |
|
594 |
||
595 |
debug_only(gch->check_for_valid_allocation_state()); |
|
596 |
assert(gch->no_gc_in_progress(), "Allocation during gc not allowed"); |
|
5343
95a5c4b89273
6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit.
jmasa
parents:
4434
diff
changeset
|
597 |
|
95a5c4b89273
6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit.
jmasa
parents:
4434
diff
changeset
|
598 |
// In general gc_overhead_limit_was_exceeded should be false so |
95a5c4b89273
6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit.
jmasa
parents:
4434
diff
changeset
|
599 |
// set it so here and reset it to true only if the gc time |
95a5c4b89273
6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit.
jmasa
parents:
4434
diff
changeset
|
600 |
// limit is being exceeded as checked below. |
95a5c4b89273
6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit.
jmasa
parents:
4434
diff
changeset
|
601 |
*gc_overhead_limit_was_exceeded = false; |
95a5c4b89273
6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit.
jmasa
parents:
4434
diff
changeset
|
602 |
|
1 | 603 |
HeapWord* result = NULL; |
604 |
||
22551 | 605 |
// Loop until the allocation is satisfied, or unsatisfied after GC. |
29078 | 606 |
for (uint try_count = 1, gclocker_stalled_count = 0; /* return or throw */; try_count += 1) { |
22551 | 607 |
HandleMark hm; // Discard any handles allocated in each iteration. |
1 | 608 |
|
609 |
// First allocation attempt is lock-free. |
|
29684
a36d90acae41
8057632: Remove auxiliary code used to handle the generations array
jwilhelm
parents:
29207
diff
changeset
|
610 |
Generation *young = gch->young_gen(); |
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
611 |
assert(young->supports_inline_contig_alloc(), |
1 | 612 |
"Otherwise, must do alloc within heap lock"); |
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
613 |
if (young->should_allocate(size, is_tlab)) { |
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
614 |
result = young->par_allocate(size, is_tlab); |
1 | 615 |
if (result != NULL) { |
616 |
assert(gch->is_in_reserved(result), "result not in heap"); |
|
617 |
return result; |
|
618 |
} |
|
619 |
} |
|
29078 | 620 |
uint gc_count_before; // Read inside the Heap_lock locked region. |
1 | 621 |
{ |
622 |
MutexLocker ml(Heap_lock); |
|
623 |
if (PrintGC && Verbose) { |
|
29684
a36d90acae41
8057632: Remove auxiliary code used to handle the generations array
jwilhelm
parents:
29207
diff
changeset
|
624 |
gclog_or_tty->print_cr("GenCollectorPolicy::mem_allocate_work:" |
a36d90acae41
8057632: Remove auxiliary code used to handle the generations array
jwilhelm
parents:
29207
diff
changeset
|
625 |
" attempting locked slow path allocation"); |
1 | 626 |
} |
627 |
// Note that only large objects get a shot at being |
|
628 |
// allocated in later generations. |
|
629 |
bool first_only = ! should_try_older_generation_allocation(size); |
|
630 |
||
631 |
result = gch->attempt_allocation(size, is_tlab, first_only); |
|
632 |
if (result != NULL) { |
|
633 |
assert(gch->is_in_reserved(result), "result not in heap"); |
|
634 |
return result; |
|
635 |
} |
|
636 |
||
637 |
if (GC_locker::is_active_and_needs_gc()) { |
|
638 |
if (is_tlab) { |
|
22551 | 639 |
return NULL; // Caller will retry allocating individual object. |
1 | 640 |
} |
641 |
if (!gch->is_maximal_no_gc()) { |
|
22551 | 642 |
// Try and expand heap to satisfy request. |
1 | 643 |
result = expand_heap_and_allocate(size, is_tlab); |
22551 | 644 |
// Result could be null if we are out of space. |
1 | 645 |
if (result != NULL) { |
646 |
return result; |
|
647 |
} |
|
648 |
} |
|
649 |
||
16604
800a65bfe347
7014552: gc/lock/jni/jnilockXXX works too slow on 1-processor machine
mgerdin
parents:
15959
diff
changeset
|
650 |
if (gclocker_stalled_count > GCLockerRetryAllocationCount) { |
22551 | 651 |
return NULL; // We didn't get to do a GC and we didn't get any memory. |
16604
800a65bfe347
7014552: gc/lock/jni/jnilockXXX works too slow on 1-processor machine
mgerdin
parents:
15959
diff
changeset
|
652 |
} |
800a65bfe347
7014552: gc/lock/jni/jnilockXXX works too slow on 1-processor machine
mgerdin
parents:
15959
diff
changeset
|
653 |
|
1 | 654 |
// If this thread is not in a jni critical section, we stall |
655 |
// the requestor until the critical section has cleared and |
|
656 |
// GC allowed. When the critical section clears, a GC is |
|
657 |
// initiated by the last thread exiting the critical section; so |
|
658 |
// we retry the allocation sequence from the beginning of the loop, |
|
659 |
// rather than causing more, now probably unnecessary, GC attempts. |
|
660 |
JavaThread* jthr = JavaThread::current(); |
|
661 |
if (!jthr->in_critical()) { |
|
662 |
MutexUnlocker mul(Heap_lock); |
|
663 |
// Wait for JNI critical section to be exited |
|
664 |
GC_locker::stall_until_clear(); |
|
16604
800a65bfe347
7014552: gc/lock/jni/jnilockXXX works too slow on 1-processor machine
mgerdin
parents:
15959
diff
changeset
|
665 |
gclocker_stalled_count += 1; |
1 | 666 |
continue; |
667 |
} else { |
|
668 |
if (CheckJNICalls) { |
|
669 |
fatal("Possible deadlock due to allocating while" |
|
670 |
" in jni critical section"); |
|
671 |
} |
|
672 |
return NULL; |
|
673 |
} |
|
674 |
} |
|
675 |
||
676 |
// Read the gc count while the heap lock is held. |
|
30173
13cf7580b000
8077413: Avoid use of Universe::heap() inside collectors
pliden
parents:
29794
diff
changeset
|
677 |
gc_count_before = gch->total_collections(); |
1 | 678 |
} |
679 |
||
21560
b3ae3ba25ebb
8026853: Prepare GC code for collector policy regression fix
jwilhelm
parents:
21559
diff
changeset
|
680 |
VM_GenCollectForAllocation op(size, is_tlab, gc_count_before); |
1 | 681 |
VMThread::execute(&op); |
682 |
if (op.prologue_succeeded()) { |
|
683 |
result = op.result(); |
|
684 |
if (op.gc_locked()) { |
|
685 |
assert(result == NULL, "must be NULL if gc_locked() is true"); |
|
22551 | 686 |
continue; // Retry and/or stall as necessary. |
1 | 687 |
} |
5343
95a5c4b89273
6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit.
jmasa
parents:
4434
diff
changeset
|
688 |
|
95a5c4b89273
6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit.
jmasa
parents:
4434
diff
changeset
|
689 |
// Allocation has failed and a collection |
95a5c4b89273
6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit.
jmasa
parents:
4434
diff
changeset
|
690 |
// has been done. If the gc time limit was exceeded the |
95a5c4b89273
6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit.
jmasa
parents:
4434
diff
changeset
|
691 |
// this time, return NULL so that an out-of-memory |
95a5c4b89273
6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit.
jmasa
parents:
4434
diff
changeset
|
692 |
// will be thrown. Clear gc_overhead_limit_exceeded |
95a5c4b89273
6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit.
jmasa
parents:
4434
diff
changeset
|
693 |
// so that the overhead exceeded does not persist. |
95a5c4b89273
6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit.
jmasa
parents:
4434
diff
changeset
|
694 |
|
95a5c4b89273
6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit.
jmasa
parents:
4434
diff
changeset
|
695 |
const bool limit_exceeded = size_policy()->gc_overhead_limit_exceeded(); |
95a5c4b89273
6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit.
jmasa
parents:
4434
diff
changeset
|
696 |
const bool softrefs_clear = all_soft_refs_clear(); |
15959
9a29e0e3a633
6976528: PS: assert(!limit_exceeded || softrefs_clear) failed: Should have been cleared
jmasa
parents:
15748
diff
changeset
|
697 |
|
5343
95a5c4b89273
6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit.
jmasa
parents:
4434
diff
changeset
|
698 |
if (limit_exceeded && softrefs_clear) { |
95a5c4b89273
6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit.
jmasa
parents:
4434
diff
changeset
|
699 |
*gc_overhead_limit_was_exceeded = true; |
95a5c4b89273
6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit.
jmasa
parents:
4434
diff
changeset
|
700 |
size_policy()->set_gc_overhead_limit_exceeded(false); |
95a5c4b89273
6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit.
jmasa
parents:
4434
diff
changeset
|
701 |
if (op.result() != NULL) { |
95a5c4b89273
6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit.
jmasa
parents:
4434
diff
changeset
|
702 |
CollectedHeap::fill_with_object(op.result(), size); |
95a5c4b89273
6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit.
jmasa
parents:
4434
diff
changeset
|
703 |
} |
95a5c4b89273
6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit.
jmasa
parents:
4434
diff
changeset
|
704 |
return NULL; |
95a5c4b89273
6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit.
jmasa
parents:
4434
diff
changeset
|
705 |
} |
1 | 706 |
assert(result == NULL || gch->is_in_reserved(result), |
707 |
"result not in heap"); |
|
708 |
return result; |
|
709 |
} |
|
710 |
||
711 |
// Give a warning if we seem to be looping forever. |
|
712 |
if ((QueuedAllocationWarningCount > 0) && |
|
713 |
(try_count % QueuedAllocationWarningCount == 0)) { |
|
29684
a36d90acae41
8057632: Remove auxiliary code used to handle the generations array
jwilhelm
parents:
29207
diff
changeset
|
714 |
warning("GenCollectorPolicy::mem_allocate_work retries %d times \n\t" |
24424
2658d7834c6e
8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents:
24353
diff
changeset
|
715 |
" size=" SIZE_FORMAT " %s", try_count, size, is_tlab ? "(TLAB)" : ""); |
1 | 716 |
} |
717 |
} |
|
718 |
} |
|
719 |
||
720 |
HeapWord* GenCollectorPolicy::expand_heap_and_allocate(size_t size, |
|
721 |
bool is_tlab) { |
|
722 |
GenCollectedHeap *gch = GenCollectedHeap::heap(); |
|
723 |
HeapWord* result = NULL; |
|
29684
a36d90acae41
8057632: Remove auxiliary code used to handle the generations array
jwilhelm
parents:
29207
diff
changeset
|
724 |
Generation *old = gch->old_gen(); |
a36d90acae41
8057632: Remove auxiliary code used to handle the generations array
jwilhelm
parents:
29207
diff
changeset
|
725 |
if (old->should_allocate(size, is_tlab)) { |
a36d90acae41
8057632: Remove auxiliary code used to handle the generations array
jwilhelm
parents:
29207
diff
changeset
|
726 |
result = old->expand_and_allocate(size, is_tlab); |
a36d90acae41
8057632: Remove auxiliary code used to handle the generations array
jwilhelm
parents:
29207
diff
changeset
|
727 |
} |
a36d90acae41
8057632: Remove auxiliary code used to handle the generations array
jwilhelm
parents:
29207
diff
changeset
|
728 |
if (result == NULL) { |
a36d90acae41
8057632: Remove auxiliary code used to handle the generations array
jwilhelm
parents:
29207
diff
changeset
|
729 |
Generation *young = gch->young_gen(); |
a36d90acae41
8057632: Remove auxiliary code used to handle the generations array
jwilhelm
parents:
29207
diff
changeset
|
730 |
if (young->should_allocate(size, is_tlab)) { |
a36d90acae41
8057632: Remove auxiliary code used to handle the generations array
jwilhelm
parents:
29207
diff
changeset
|
731 |
result = young->expand_and_allocate(size, is_tlab); |
1 | 732 |
} |
733 |
} |
|
734 |
assert(result == NULL || gch->is_in_reserved(result), "result not in heap"); |
|
735 |
return result; |
|
736 |
} |
|
737 |
||
738 |
HeapWord* GenCollectorPolicy::satisfy_failed_allocation(size_t size, |
|
739 |
bool is_tlab) { |
|
740 |
GenCollectedHeap *gch = GenCollectedHeap::heap(); |
|
741 |
GCCauseSetter x(gch, GCCause::_allocation_failure); |
|
742 |
HeapWord* result = NULL; |
|
743 |
||
744 |
assert(size != 0, "Precondition violated"); |
|
745 |
if (GC_locker::is_active_and_needs_gc()) { |
|
746 |
// GC locker is active; instead of a collection we will attempt |
|
747 |
// to expand the heap, if there's room for expansion. |
|
748 |
if (!gch->is_maximal_no_gc()) { |
|
749 |
result = expand_heap_and_allocate(size, is_tlab); |
|
750 |
} |
|
22551 | 751 |
return result; // Could be null if we are out of space. |
7419
263dd4e89b9d
7001033: assert(gch->gc_cause() == GCCause::_scavenge_alot || !gch->incremental_collection_failed())
ysr
parents:
7397
diff
changeset
|
752 |
} else if (!gch->incremental_collection_will_fail(false /* don't consult_young */)) { |
1 | 753 |
// Do an incremental collection. |
31358
693058672cc6
8077842: Remove the level parameter passed around in GenCollectedHeap
jwilhelm
parents:
31236
diff
changeset
|
754 |
gch->do_collection(false, // full |
693058672cc6
8077842: Remove the level parameter passed around in GenCollectedHeap
jwilhelm
parents:
31236
diff
changeset
|
755 |
false, // clear_all_soft_refs |
693058672cc6
8077842: Remove the level parameter passed around in GenCollectedHeap
jwilhelm
parents:
31236
diff
changeset
|
756 |
size, // size |
693058672cc6
8077842: Remove the level parameter passed around in GenCollectedHeap
jwilhelm
parents:
31236
diff
changeset
|
757 |
is_tlab, // is_tlab |
693058672cc6
8077842: Remove the level parameter passed around in GenCollectedHeap
jwilhelm
parents:
31236
diff
changeset
|
758 |
GenCollectedHeap::OldGen); // max_generation |
1 | 759 |
} else { |
7419
263dd4e89b9d
7001033: assert(gch->gc_cause() == GCCause::_scavenge_alot || !gch->incremental_collection_failed())
ysr
parents:
7397
diff
changeset
|
760 |
if (Verbose && PrintGCDetails) { |
263dd4e89b9d
7001033: assert(gch->gc_cause() == GCCause::_scavenge_alot || !gch->incremental_collection_failed())
ysr
parents:
7397
diff
changeset
|
761 |
gclog_or_tty->print(" :: Trying full because partial may fail :: "); |
263dd4e89b9d
7001033: assert(gch->gc_cause() == GCCause::_scavenge_alot || !gch->incremental_collection_failed())
ysr
parents:
7397
diff
changeset
|
762 |
} |
1 | 763 |
// Try a full collection; see delta for bug id 6266275 |
764 |
// for the original code and why this has been simplified |
|
765 |
// with from-space allocation criteria modified and |
|
766 |
// such allocation moved out of the safepoint path. |
|
31358
693058672cc6
8077842: Remove the level parameter passed around in GenCollectedHeap
jwilhelm
parents:
31236
diff
changeset
|
767 |
gch->do_collection(true, // full |
693058672cc6
8077842: Remove the level parameter passed around in GenCollectedHeap
jwilhelm
parents:
31236
diff
changeset
|
768 |
false, // clear_all_soft_refs |
693058672cc6
8077842: Remove the level parameter passed around in GenCollectedHeap
jwilhelm
parents:
31236
diff
changeset
|
769 |
size, // size |
693058672cc6
8077842: Remove the level parameter passed around in GenCollectedHeap
jwilhelm
parents:
31236
diff
changeset
|
770 |
is_tlab, // is_tlab |
693058672cc6
8077842: Remove the level parameter passed around in GenCollectedHeap
jwilhelm
parents:
31236
diff
changeset
|
771 |
GenCollectedHeap::OldGen); // max_generation |
1 | 772 |
} |
773 |
||
774 |
result = gch->attempt_allocation(size, is_tlab, false /*first_only*/); |
|
775 |
||
776 |
if (result != NULL) { |
|
777 |
assert(gch->is_in_reserved(result), "result not in heap"); |
|
778 |
return result; |
|
779 |
} |
|
780 |
||
781 |
// OK, collection failed, try expansion. |
|
782 |
result = expand_heap_and_allocate(size, is_tlab); |
|
783 |
if (result != NULL) { |
|
784 |
return result; |
|
785 |
} |
|
786 |
||
787 |
// If we reach this point, we're really out of memory. Try every trick |
|
788 |
// we can to reclaim memory. Force collection of soft references. Force |
|
789 |
// a complete compaction of the heap. Any additional methods for finding |
|
790 |
// free memory should be here, especially if they are expensive. If this |
|
791 |
// attempt fails, an OOM exception will be thrown. |
|
792 |
{ |
|
31236 | 793 |
UIntXFlagSetting flag_change(MarkSweepAlwaysCompactCount, 1); // Make sure the heap is fully compacted |
1 | 794 |
|
31358
693058672cc6
8077842: Remove the level parameter passed around in GenCollectedHeap
jwilhelm
parents:
31236
diff
changeset
|
795 |
gch->do_collection(true, // full |
693058672cc6
8077842: Remove the level parameter passed around in GenCollectedHeap
jwilhelm
parents:
31236
diff
changeset
|
796 |
true, // clear_all_soft_refs |
693058672cc6
8077842: Remove the level parameter passed around in GenCollectedHeap
jwilhelm
parents:
31236
diff
changeset
|
797 |
size, // size |
693058672cc6
8077842: Remove the level parameter passed around in GenCollectedHeap
jwilhelm
parents:
31236
diff
changeset
|
798 |
is_tlab, // is_tlab |
693058672cc6
8077842: Remove the level parameter passed around in GenCollectedHeap
jwilhelm
parents:
31236
diff
changeset
|
799 |
GenCollectedHeap::OldGen); // max_generation |
1 | 800 |
} |
801 |
||
802 |
result = gch->attempt_allocation(size, is_tlab, false /* first_only */); |
|
803 |
if (result != NULL) { |
|
804 |
assert(gch->is_in_reserved(result), "result not in heap"); |
|
805 |
return result; |
|
806 |
} |
|
807 |
||
5343
95a5c4b89273
6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit.
jmasa
parents:
4434
diff
changeset
|
808 |
assert(!should_clear_all_soft_refs(), |
95a5c4b89273
6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit.
jmasa
parents:
4434
diff
changeset
|
809 |
"Flag should have been handled and cleared prior to this point"); |
95a5c4b89273
6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit.
jmasa
parents:
4434
diff
changeset
|
810 |
|
1 | 811 |
// What else? We might try synchronous finalization later. If the total |
812 |
// space available is large enough for the allocation, then a more |
|
813 |
// complete compaction phase than we've tried so far might be |
|
814 |
// appropriate. |
|
815 |
return NULL; |
|
816 |
} |
|
817 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
818 |
MetaWord* CollectorPolicy::satisfy_failed_metadata_allocation( |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
819 |
ClassLoaderData* loader_data, |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
820 |
size_t word_size, |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
821 |
Metaspace::MetadataType mdtype) { |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
822 |
uint loop_count = 0; |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
823 |
uint gc_count = 0; |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
824 |
uint full_gc_count = 0; |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
825 |
|
14291
c8e69e83977f
8000988: VM deadlock when running btree006 on windows-i586
jmasa
parents:
13755
diff
changeset
|
826 |
assert(!Heap_lock->owned_by_self(), "Should not be holding the Heap_lock"); |
c8e69e83977f
8000988: VM deadlock when running btree006 on windows-i586
jmasa
parents:
13755
diff
changeset
|
827 |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
828 |
do { |
26934
8a3682c071be
8058963: CollectorPolicy::satisfy_failed_metadata_allocation can avoid some safepoints
ehelin
parents:
25957
diff
changeset
|
829 |
MetaWord* result = loader_data->metaspace_non_null()->allocate(word_size, mdtype); |
8a3682c071be
8058963: CollectorPolicy::satisfy_failed_metadata_allocation can avoid some safepoints
ehelin
parents:
25957
diff
changeset
|
830 |
if (result != NULL) { |
8a3682c071be
8058963: CollectorPolicy::satisfy_failed_metadata_allocation can avoid some safepoints
ehelin
parents:
25957
diff
changeset
|
831 |
return result; |
8a3682c071be
8058963: CollectorPolicy::satisfy_failed_metadata_allocation can avoid some safepoints
ehelin
parents:
25957
diff
changeset
|
832 |
} |
8a3682c071be
8058963: CollectorPolicy::satisfy_failed_metadata_allocation can avoid some safepoints
ehelin
parents:
25957
diff
changeset
|
833 |
|
13755
a00f5de57d30
7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents:
13728
diff
changeset
|
834 |
if (GC_locker::is_active_and_needs_gc()) { |
a00f5de57d30
7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents:
13728
diff
changeset
|
835 |
// If the GC_locker is active, just expand and allocate. |
a00f5de57d30
7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents:
13728
diff
changeset
|
836 |
// If that does not succeed, wait if this thread is not |
a00f5de57d30
7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents:
13728
diff
changeset
|
837 |
// in a critical section itself. |
a00f5de57d30
7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents:
13728
diff
changeset
|
838 |
result = |
a00f5de57d30
7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents:
13728
diff
changeset
|
839 |
loader_data->metaspace_non_null()->expand_and_allocate(word_size, |
a00f5de57d30
7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents:
13728
diff
changeset
|
840 |
mdtype); |
a00f5de57d30
7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents:
13728
diff
changeset
|
841 |
if (result != NULL) { |
a00f5de57d30
7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents:
13728
diff
changeset
|
842 |
return result; |
a00f5de57d30
7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents:
13728
diff
changeset
|
843 |
} |
a00f5de57d30
7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents:
13728
diff
changeset
|
844 |
JavaThread* jthr = JavaThread::current(); |
a00f5de57d30
7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents:
13728
diff
changeset
|
845 |
if (!jthr->in_critical()) { |
a00f5de57d30
7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents:
13728
diff
changeset
|
846 |
// Wait for JNI critical section to be exited |
a00f5de57d30
7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents:
13728
diff
changeset
|
847 |
GC_locker::stall_until_clear(); |
a00f5de57d30
7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents:
13728
diff
changeset
|
848 |
// The GC invoked by the last thread leaving the critical |
a00f5de57d30
7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents:
13728
diff
changeset
|
849 |
// section will be a young collection and a full collection |
a00f5de57d30
7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents:
13728
diff
changeset
|
850 |
// is (currently) needed for unloading classes so continue |
a00f5de57d30
7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents:
13728
diff
changeset
|
851 |
// to the next iteration to get a full GC. |
a00f5de57d30
7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents:
13728
diff
changeset
|
852 |
continue; |
a00f5de57d30
7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents:
13728
diff
changeset
|
853 |
} else { |
a00f5de57d30
7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents:
13728
diff
changeset
|
854 |
if (CheckJNICalls) { |
a00f5de57d30
7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents:
13728
diff
changeset
|
855 |
fatal("Possible deadlock due to allocating while" |
a00f5de57d30
7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents:
13728
diff
changeset
|
856 |
" in jni critical section"); |
a00f5de57d30
7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents:
13728
diff
changeset
|
857 |
} |
a00f5de57d30
7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents:
13728
diff
changeset
|
858 |
return NULL; |
a00f5de57d30
7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents:
13728
diff
changeset
|
859 |
} |
a00f5de57d30
7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents:
13728
diff
changeset
|
860 |
} |
a00f5de57d30
7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents:
13728
diff
changeset
|
861 |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
862 |
{ // Need lock to get self consistent gc_count's |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
863 |
MutexLocker ml(Heap_lock); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
864 |
gc_count = Universe::heap()->total_collections(); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
865 |
full_gc_count = Universe::heap()->total_full_collections(); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
866 |
} |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
867 |
|
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
868 |
// Generate a VM operation |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
869 |
VM_CollectForMetadataAllocation op(loader_data, |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
870 |
word_size, |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
871 |
mdtype, |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
872 |
gc_count, |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
873 |
full_gc_count, |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
874 |
GCCause::_metadata_GC_threshold); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
875 |
VMThread::execute(&op); |
15086
2bfd799e9147
8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents:
14583
diff
changeset
|
876 |
|
22551 | 877 |
// If GC was locked out, try again. Check before checking success because the |
878 |
// prologue could have succeeded and the GC still have been locked out. |
|
15086
2bfd799e9147
8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents:
14583
diff
changeset
|
879 |
if (op.gc_locked()) { |
2bfd799e9147
8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents:
14583
diff
changeset
|
880 |
continue; |
2bfd799e9147
8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents:
14583
diff
changeset
|
881 |
} |
2bfd799e9147
8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents:
14583
diff
changeset
|
882 |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
883 |
if (op.prologue_succeeded()) { |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
884 |
return op.result(); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
885 |
} |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
886 |
loop_count++; |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
887 |
if ((QueuedAllocationWarningCount > 0) && |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
888 |
(loop_count % QueuedAllocationWarningCount == 0)) { |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
889 |
warning("satisfy_failed_metadata_allocation() retries %d times \n\t" |
24424
2658d7834c6e
8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents:
24353
diff
changeset
|
890 |
" size=" SIZE_FORMAT, loop_count, word_size); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
891 |
} |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
892 |
} while (true); // Until a GC is done |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
893 |
} |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
10565
diff
changeset
|
894 |
|
1 | 895 |
// Return true if any of the following is true: |
896 |
// . the allocation won't fit into the current young gen heap |
|
897 |
// . gc locker is occupied (jni critical section) |
|
898 |
// . heap memory is tight -- the most recent previous collection |
|
899 |
// was a full collection because a partial collection (would |
|
900 |
// have) failed and is likely to fail again |
|
901 |
bool GenCollectorPolicy::should_try_older_generation_allocation( |
|
902 |
size_t word_size) const { |
|
903 |
GenCollectedHeap* gch = GenCollectedHeap::heap(); |
|
29684
a36d90acae41
8057632: Remove auxiliary code used to handle the generations array
jwilhelm
parents:
29207
diff
changeset
|
904 |
size_t young_capacity = gch->young_gen()->capacity_before_gc(); |
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
905 |
return (word_size > heap_word_size(young_capacity)) |
6985
e9364ec299ac
6896603: CMS/GCH: collection_attempt_is_safe() ergo should use more recent data
ysr
parents:
6465
diff
changeset
|
906 |
|| GC_locker::is_active_and_needs_gc() |
e9364ec299ac
6896603: CMS/GCH: collection_attempt_is_safe() ergo should use more recent data
ysr
parents:
6465
diff
changeset
|
907 |
|| gch->incremental_collection_failed(); |
1 | 908 |
} |
909 |
||
910 |
||
911 |
// |
|
912 |
// MarkSweepPolicy methods |
|
913 |
// |
|
914 |
||
21561
c619b1cb4554
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
21560
diff
changeset
|
915 |
void MarkSweepPolicy::initialize_alignments() { |
29697
92501504191b
8074459: Flags handling memory sizes should be of type size_t
jwilhelm
parents:
29684
diff
changeset
|
916 |
_space_alignment = _gen_alignment = (size_t)Generation::GenGrain; |
21561
c619b1cb4554
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
21560
diff
changeset
|
917 |
_heap_alignment = compute_heap_alignment(); |
1 | 918 |
} |
919 |
||
920 |
void MarkSweepPolicy::initialize_generations() { |
|
29794 | 921 |
_young_gen_spec = new GenerationSpec(Generation::DefNew, _initial_young_size, _max_young_size, _gen_alignment); |
922 |
_old_gen_spec = new GenerationSpec(Generation::MarkSweepCompact, _initial_old_size, _max_old_size, _gen_alignment); |
|
1 | 923 |
} |
924 |
||
925 |
void MarkSweepPolicy::initialize_gc_policy_counters() { |
|
22551 | 926 |
// Initialize the policy counters - 2 collectors, 3 generations. |
27898
813ad96387b3
8065972: Remove support for ParNew+SerialOld and DefNew+CMS
brutisso
parents:
27687
diff
changeset
|
927 |
_gc_policy_counters = new GCPolicyCounters("Copy:MSC", 2, 3); |
1 | 928 |
} |
22776
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
929 |
|
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
930 |
/////////////// Unit tests /////////////// |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
931 |
|
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
932 |
#ifndef PRODUCT |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
933 |
// Testing that the NewSize flag is handled correct is hard because it |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
934 |
// depends on so many other configurable variables. This test only tries to |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
935 |
// verify that there are some basic rules for NewSize honored by the policies. |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
936 |
class TestGenCollectorPolicy { |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
937 |
public: |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
938 |
static void test_new_size() { |
22776
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
939 |
size_t flag_value; |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
940 |
|
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
941 |
save_flags(); |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
942 |
|
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
943 |
// If NewSize is set on the command line, it should be used |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
944 |
// for both min and initial young size if less than min heap. |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
945 |
flag_value = 20 * M; |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
946 |
set_basic_flag_values(); |
29697
92501504191b
8074459: Flags handling memory sizes should be of type size_t
jwilhelm
parents:
29684
diff
changeset
|
947 |
FLAG_SET_CMDLINE(size_t, NewSize, flag_value); |
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
948 |
verify_young_min(flag_value); |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
949 |
|
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
950 |
set_basic_flag_values(); |
29697
92501504191b
8074459: Flags handling memory sizes should be of type size_t
jwilhelm
parents:
29684
diff
changeset
|
951 |
FLAG_SET_CMDLINE(size_t, NewSize, flag_value); |
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
952 |
verify_young_initial(flag_value); |
22776
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
953 |
|
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
954 |
// If NewSize is set on command line, but is larger than the min |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
955 |
// heap size, it should only be used for initial young size. |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
956 |
flag_value = 80 * M; |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
957 |
set_basic_flag_values(); |
29697
92501504191b
8074459: Flags handling memory sizes should be of type size_t
jwilhelm
parents:
29684
diff
changeset
|
958 |
FLAG_SET_CMDLINE(size_t, NewSize, flag_value); |
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
959 |
verify_young_initial(flag_value); |
22776
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
960 |
|
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
961 |
// If NewSize has been ergonomically set, the collector policy |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
962 |
// should use it for min but calculate the initial young size |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
963 |
// using NewRatio. |
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changeset
|
964 |
flag_value = 20 * M; |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
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diff
changeset
|
965 |
set_basic_flag_values(); |
29697
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8074459: Flags handling memory sizes should be of type size_t
jwilhelm
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diff
changeset
|
966 |
FLAG_SET_ERGO(size_t, NewSize, flag_value); |
24941
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8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
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diff
changeset
|
967 |
verify_young_min(flag_value); |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
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diff
changeset
|
968 |
|
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
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parents:
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diff
changeset
|
969 |
set_basic_flag_values(); |
29697
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8074459: Flags handling memory sizes should be of type size_t
jwilhelm
parents:
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diff
changeset
|
970 |
FLAG_SET_ERGO(size_t, NewSize, flag_value); |
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
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diff
changeset
|
971 |
verify_scaled_young_initial(InitialHeapSize); |
22776
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8033426: Scale initial NewSize using NewRatio if not set on command line
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diff
changeset
|
972 |
|
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
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parents:
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diff
changeset
|
973 |
restore_flags(); |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
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parents:
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diff
changeset
|
974 |
} |
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
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diff
changeset
|
975 |
|
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
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parents:
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diff
changeset
|
976 |
static void test_old_size() { |
29207
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8071822: [TEST_BUG] Adapt collectorPolicy internal tests to support 64K pages
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diff
changeset
|
977 |
size_t flag_value; |
c5b52635f690
8071822: [TEST_BUG] Adapt collectorPolicy internal tests to support 64K pages
goetz
parents:
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diff
changeset
|
978 |
size_t heap_alignment = CollectorPolicy::compute_heap_alignment(); |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
979 |
|
29207
c5b52635f690
8071822: [TEST_BUG] Adapt collectorPolicy internal tests to support 64K pages
goetz
parents:
29078
diff
changeset
|
980 |
save_flags(); |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
981 |
|
29207
c5b52635f690
8071822: [TEST_BUG] Adapt collectorPolicy internal tests to support 64K pages
goetz
parents:
29078
diff
changeset
|
982 |
// If OldSize is set on the command line, it should be used |
c5b52635f690
8071822: [TEST_BUG] Adapt collectorPolicy internal tests to support 64K pages
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parents:
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diff
changeset
|
983 |
// for both min and initial old size if less than min heap. |
c5b52635f690
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goetz
parents:
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diff
changeset
|
984 |
flag_value = 20 * M; |
c5b52635f690
8071822: [TEST_BUG] Adapt collectorPolicy internal tests to support 64K pages
goetz
parents:
29078
diff
changeset
|
985 |
set_basic_flag_values(); |
29697
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jwilhelm
parents:
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diff
changeset
|
986 |
FLAG_SET_CMDLINE(size_t, OldSize, flag_value); |
29207
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8071822: [TEST_BUG] Adapt collectorPolicy internal tests to support 64K pages
goetz
parents:
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diff
changeset
|
987 |
verify_old_min(flag_value); |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
988 |
|
29207
c5b52635f690
8071822: [TEST_BUG] Adapt collectorPolicy internal tests to support 64K pages
goetz
parents:
29078
diff
changeset
|
989 |
set_basic_flag_values(); |
29697
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8074459: Flags handling memory sizes should be of type size_t
jwilhelm
parents:
29684
diff
changeset
|
990 |
FLAG_SET_CMDLINE(size_t, OldSize, flag_value); |
29207
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8071822: [TEST_BUG] Adapt collectorPolicy internal tests to support 64K pages
goetz
parents:
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diff
changeset
|
991 |
// Calculate what we expect the flag to be. |
c5b52635f690
8071822: [TEST_BUG] Adapt collectorPolicy internal tests to support 64K pages
goetz
parents:
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diff
changeset
|
992 |
size_t expected_old_initial = align_size_up(InitialHeapSize, heap_alignment) - MaxNewSize; |
c5b52635f690
8071822: [TEST_BUG] Adapt collectorPolicy internal tests to support 64K pages
goetz
parents:
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diff
changeset
|
993 |
verify_old_initial(expected_old_initial); |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
994 |
|
29207
c5b52635f690
8071822: [TEST_BUG] Adapt collectorPolicy internal tests to support 64K pages
goetz
parents:
29078
diff
changeset
|
995 |
// If MaxNewSize is large, the maximum OldSize will be less than |
c5b52635f690
8071822: [TEST_BUG] Adapt collectorPolicy internal tests to support 64K pages
goetz
parents:
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diff
changeset
|
996 |
// what's requested on the command line and it should be reset |
c5b52635f690
8071822: [TEST_BUG] Adapt collectorPolicy internal tests to support 64K pages
goetz
parents:
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diff
changeset
|
997 |
// ergonomically. |
c5b52635f690
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goetz
parents:
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diff
changeset
|
998 |
// We intentionally set MaxNewSize + OldSize > MaxHeapSize (see over_size). |
c5b52635f690
8071822: [TEST_BUG] Adapt collectorPolicy internal tests to support 64K pages
goetz
parents:
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diff
changeset
|
999 |
flag_value = 30 * M; |
c5b52635f690
8071822: [TEST_BUG] Adapt collectorPolicy internal tests to support 64K pages
goetz
parents:
29078
diff
changeset
|
1000 |
set_basic_flag_values(); |
29697
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8074459: Flags handling memory sizes should be of type size_t
jwilhelm
parents:
29684
diff
changeset
|
1001 |
FLAG_SET_CMDLINE(size_t, OldSize, flag_value); |
29207
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8071822: [TEST_BUG] Adapt collectorPolicy internal tests to support 64K pages
goetz
parents:
29078
diff
changeset
|
1002 |
size_t over_size = 20*M; |
c5b52635f690
8071822: [TEST_BUG] Adapt collectorPolicy internal tests to support 64K pages
goetz
parents:
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diff
changeset
|
1003 |
size_t new_size_value = align_size_up(MaxHeapSize, heap_alignment) - flag_value + over_size; |
29697
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jwilhelm
parents:
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diff
changeset
|
1004 |
FLAG_SET_CMDLINE(size_t, MaxNewSize, new_size_value); |
29207
c5b52635f690
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goetz
parents:
29078
diff
changeset
|
1005 |
// Calculate what we expect the flag to be. |
c5b52635f690
8071822: [TEST_BUG] Adapt collectorPolicy internal tests to support 64K pages
goetz
parents:
29078
diff
changeset
|
1006 |
expected_old_initial = align_size_up(MaxHeapSize, heap_alignment) - MaxNewSize; |
c5b52635f690
8071822: [TEST_BUG] Adapt collectorPolicy internal tests to support 64K pages
goetz
parents:
29078
diff
changeset
|
1007 |
verify_old_initial(expected_old_initial); |
c5b52635f690
8071822: [TEST_BUG] Adapt collectorPolicy internal tests to support 64K pages
goetz
parents:
29078
diff
changeset
|
1008 |
restore_flags(); |
22776
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8033426: Scale initial NewSize using NewRatio if not set on command line
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parents:
22551
diff
changeset
|
1009 |
} |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
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diff
changeset
|
1010 |
|
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
1011 |
static void verify_young_min(size_t expected) { |
22776
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8033426: Scale initial NewSize using NewRatio if not set on command line
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parents:
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diff
changeset
|
1012 |
MarkSweepPolicy msp; |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
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parents:
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diff
changeset
|
1013 |
msp.initialize_all(); |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
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parents:
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diff
changeset
|
1014 |
|
33105
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david
parents:
32362
diff
changeset
|
1015 |
assert(msp.min_young_size() <= expected, "%zu > %zu", msp.min_young_size(), expected); |
22776
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
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parents:
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diff
changeset
|
1016 |
} |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
1017 |
|
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
1018 |
static void verify_young_initial(size_t expected) { |
22776
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
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parents:
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diff
changeset
|
1019 |
MarkSweepPolicy msp; |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
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parents:
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diff
changeset
|
1020 |
msp.initialize_all(); |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
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diff
changeset
|
1021 |
|
33105
294e48b4f704
8080775: Better argument formatting for assert() and friends
david
parents:
32362
diff
changeset
|
1022 |
assert(msp.initial_young_size() == expected, "%zu != %zu", msp.initial_young_size(), expected); |
22776
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8033426: Scale initial NewSize using NewRatio if not set on command line
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parents:
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diff
changeset
|
1023 |
} |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
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diff
changeset
|
1024 |
|
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
1025 |
static void verify_scaled_young_initial(size_t initial_heap_size) { |
22776
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
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parents:
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diff
changeset
|
1026 |
MarkSweepPolicy msp; |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
1027 |
msp.initialize_all(); |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
1028 |
|
29207
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8071822: [TEST_BUG] Adapt collectorPolicy internal tests to support 64K pages
goetz
parents:
29078
diff
changeset
|
1029 |
if (InitialHeapSize > initial_heap_size) { |
c5b52635f690
8071822: [TEST_BUG] Adapt collectorPolicy internal tests to support 64K pages
goetz
parents:
29078
diff
changeset
|
1030 |
// InitialHeapSize was adapted by msp.initialize_all, e.g. due to alignment |
c5b52635f690
8071822: [TEST_BUG] Adapt collectorPolicy internal tests to support 64K pages
goetz
parents:
29078
diff
changeset
|
1031 |
// caused by 64K page size. |
c5b52635f690
8071822: [TEST_BUG] Adapt collectorPolicy internal tests to support 64K pages
goetz
parents:
29078
diff
changeset
|
1032 |
initial_heap_size = InitialHeapSize; |
c5b52635f690
8071822: [TEST_BUG] Adapt collectorPolicy internal tests to support 64K pages
goetz
parents:
29078
diff
changeset
|
1033 |
} |
c5b52635f690
8071822: [TEST_BUG] Adapt collectorPolicy internal tests to support 64K pages
goetz
parents:
29078
diff
changeset
|
1034 |
|
22776
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
1035 |
size_t expected = msp.scale_by_NewRatio_aligned(initial_heap_size); |
33105
294e48b4f704
8080775: Better argument formatting for assert() and friends
david
parents:
32362
diff
changeset
|
1036 |
assert(msp.initial_young_size() == expected, "%zu != %zu", msp.initial_young_size(), expected); |
22776
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
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parents:
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diff
changeset
|
1037 |
assert(FLAG_IS_ERGO(NewSize) && NewSize == expected, |
33105
294e48b4f704
8080775: Better argument formatting for assert() and friends
david
parents:
32362
diff
changeset
|
1038 |
"NewSize should have been set ergonomically to %zu, but was %zu", expected, NewSize); |
22776
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
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diff
changeset
|
1039 |
} |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
1040 |
|
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
1041 |
static void verify_old_min(size_t expected) { |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
1042 |
MarkSweepPolicy msp; |
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
1043 |
msp.initialize_all(); |
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
1044 |
|
33105
294e48b4f704
8080775: Better argument formatting for assert() and friends
david
parents:
32362
diff
changeset
|
1045 |
assert(msp.min_old_size() <= expected, "%zu > %zu", msp.min_old_size(), expected); |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
1046 |
} |
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
1047 |
|
24941
4ebbe176a7b1
8042298: Remove the names gen0 and gen1 from the GC code
jwilhelm
parents:
24940
diff
changeset
|
1048 |
static void verify_old_initial(size_t expected) { |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
1049 |
MarkSweepPolicy msp; |
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
1050 |
msp.initialize_all(); |
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
1051 |
|
33105
294e48b4f704
8080775: Better argument formatting for assert() and friends
david
parents:
32362
diff
changeset
|
1052 |
assert(msp.initial_old_size() == expected, "%zu != %zu", msp.initial_old_size(), expected); |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
1053 |
} |
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
1054 |
|
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
1055 |
|
22776
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
1056 |
private: |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
1057 |
static size_t original_InitialHeapSize; |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
1058 |
static size_t original_MaxHeapSize; |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
1059 |
static size_t original_MaxNewSize; |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
1060 |
static size_t original_MinHeapDeltaBytes; |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
1061 |
static size_t original_NewSize; |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
1062 |
static size_t original_OldSize; |
d99c54477401
8033426: Scale initial NewSize using NewRatio if not set on command line
sjohanss
parents:
22551
diff
changeset
|
1063 |
|
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
1064 |
static void set_basic_flag_values() { |
29697
92501504191b
8074459: Flags handling memory sizes should be of type size_t
jwilhelm
parents:
29684
diff
changeset
|
1065 |
FLAG_SET_ERGO(size_t, MaxHeapSize, 180 * M); |
92501504191b
8074459: Flags handling memory sizes should be of type size_t
jwilhelm
parents:
29684
diff
changeset
|
1066 |
FLAG_SET_ERGO(size_t, InitialHeapSize, 100 * M); |
92501504191b
8074459: Flags handling memory sizes should be of type size_t
jwilhelm
parents:
29684
diff
changeset
|
1067 |
FLAG_SET_ERGO(size_t, OldSize, 4 * M); |
92501504191b
8074459: Flags handling memory sizes should be of type size_t
jwilhelm
parents:
29684
diff
changeset
|
1068 |
FLAG_SET_ERGO(size_t, NewSize, 1 * M); |
92501504191b
8074459: Flags handling memory sizes should be of type size_t
jwilhelm
parents:
29684
diff
changeset
|
1069 |
FLAG_SET_ERGO(size_t, MaxNewSize, 80 * M); |
23851
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
1070 |
Arguments::set_min_heap_size(40 * M); |
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
parents:
23224
diff
changeset
|
1071 |
} |
60303358c862
8029186: regression-hotspot nightly failure: assert(FLAG_IS_DEFAULT(MaxNewSize) || MaxNewSize < MaxHeapSize) failed
sjohanss
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1072 |
|
22776
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1073 |
static void save_flags() { |
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1074 |
original_InitialHeapSize = InitialHeapSize; |
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1075 |
original_MaxHeapSize = MaxHeapSize; |
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1076 |
original_MaxNewSize = MaxNewSize; |
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1077 |
original_MinHeapDeltaBytes = MinHeapDeltaBytes; |
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1078 |
original_NewSize = NewSize; |
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1079 |
original_OldSize = OldSize; |
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|
1080 |
} |
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|
1081 |
|
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1082 |
static void restore_flags() { |
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|
1083 |
InitialHeapSize = original_InitialHeapSize; |
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|
1084 |
MaxHeapSize = original_MaxHeapSize; |
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|
1085 |
MaxNewSize = original_MaxNewSize; |
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|
1086 |
MinHeapDeltaBytes = original_MinHeapDeltaBytes; |
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|
1087 |
NewSize = original_NewSize; |
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|
1088 |
OldSize = original_OldSize; |
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|
1089 |
} |
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|
1090 |
}; |
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changeset
|
1091 |
|
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|
1092 |
size_t TestGenCollectorPolicy::original_InitialHeapSize = 0; |
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|
1093 |
size_t TestGenCollectorPolicy::original_MaxHeapSize = 0; |
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|
1094 |
size_t TestGenCollectorPolicy::original_MaxNewSize = 0; |
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|
1095 |
size_t TestGenCollectorPolicy::original_MinHeapDeltaBytes = 0; |
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|
1096 |
size_t TestGenCollectorPolicy::original_NewSize = 0; |
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|
1097 |
size_t TestGenCollectorPolicy::original_OldSize = 0; |
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changeset
|
1098 |
|
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|
1099 |
void TestNewSize_test() { |
23851
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1100 |
TestGenCollectorPolicy::test_new_size(); |
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1101 |
} |
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|
1102 |
|
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1103 |
void TestOldSize_test() { |
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|
1104 |
TestGenCollectorPolicy::test_old_size(); |
22776
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|
1105 |
} |
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changeset
|
1106 |
|
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1107 |
#endif |