author | gziemski |
Mon, 23 Apr 2018 10:59:39 -0500 | |
changeset 49857 | 31e07291ae29 |
parent 47216 | 71c04702a3d5 |
child 49860 | ca5216a2a2cc |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2016, 2018, 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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#include "precompiled.hpp" |
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#include "gc/shared/collectorPolicy.hpp" |
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#include "runtime/arguments.hpp" |
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#include "runtime/flags/flagSetting.hpp" |
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#include "runtime/globals_extension.hpp" |
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#include "utilities/align.hpp" |
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#include "utilities/globalDefinitions.hpp" |
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#include "utilities/macros.hpp" |
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#include "unittest.hpp" |
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class TestGenCollectorPolicy { |
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public: |
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class Executor { |
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public: |
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virtual void execute() = 0; |
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}; |
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class UnaryExecutor : public Executor { |
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protected: |
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const size_t param; |
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public: |
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UnaryExecutor(size_t val) : param(val) { } |
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}; |
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class BinaryExecutor : public Executor { |
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protected: |
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const size_t param1; |
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const size_t param2; |
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public: |
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BinaryExecutor(size_t val1, size_t val2) : param1(val1), param2(val2) { } |
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}; |
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class MinHeapSizeGuard { |
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private: |
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const size_t _stored_min_heap_size; |
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public: |
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MinHeapSizeGuard() : _stored_min_heap_size(Arguments::min_heap_size()) { } |
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~MinHeapSizeGuard() { |
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Arguments::set_min_heap_size(_stored_min_heap_size); |
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} |
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}; |
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class TestWrapper { |
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public: |
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static void test(Executor* setter1, Executor* setter2, Executor* checker) { |
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FLAG_GUARD(InitialHeapSize); |
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FLAG_GUARD(MaxHeapSize); |
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FLAG_GUARD(MaxNewSize); |
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FLAG_GUARD(MinHeapDeltaBytes); |
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FLAG_GUARD(NewSize); |
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FLAG_GUARD(OldSize); |
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MinHeapSizeGuard min_heap_size_guard; |
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FLAG_SET_ERGO(size_t, InitialHeapSize, 100 * M); |
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FLAG_SET_ERGO(size_t, OldSize, 4 * M); |
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FLAG_SET_ERGO(size_t, NewSize, 1 * M); |
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FLAG_SET_ERGO(size_t, MaxNewSize, 80 * M); |
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Arguments::set_min_heap_size(40 * M); |
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ASSERT_NO_FATAL_FAILURE(setter1->execute()); |
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if (setter2 != NULL) { |
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ASSERT_NO_FATAL_FAILURE(setter2->execute()); |
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} |
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ASSERT_NO_FATAL_FAILURE(checker->execute()); |
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} |
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static void test(Executor* setter, Executor* checker) { |
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test(setter, NULL, checker); |
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} |
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}; |
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class SetNewSizeErgo : public UnaryExecutor { |
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public: |
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SetNewSizeErgo(size_t param) : UnaryExecutor(param) { } |
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void execute() { |
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FLAG_SET_ERGO(size_t, NewSize, param); |
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} |
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}; |
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class CheckYoungMin : public UnaryExecutor { |
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public: |
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CheckYoungMin(size_t param) : UnaryExecutor(param) { } |
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void execute() { |
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MarkSweepPolicy msp; |
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msp.initialize_all(); |
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ASSERT_LE(msp.min_young_size(), param); |
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} |
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}; |
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class CheckScaledYoungInitial : public Executor { |
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public: |
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void execute() { |
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size_t initial_heap_size = InitialHeapSize; |
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MarkSweepPolicy msp; |
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msp.initialize_all(); |
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if (InitialHeapSize > initial_heap_size) { |
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// InitialHeapSize was adapted by msp.initialize_all, e.g. due to alignment |
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// caused by 64K page size. |
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initial_heap_size = InitialHeapSize; |
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} |
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size_t expected = msp.scale_by_NewRatio_aligned(initial_heap_size); |
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ASSERT_EQ(expected, msp.initial_young_size()); |
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ASSERT_EQ(expected, NewSize); |
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} |
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}; |
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class SetNewSizeCmd : public UnaryExecutor { |
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public: |
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SetNewSizeCmd(size_t param) : UnaryExecutor(param) { } |
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void execute() { |
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FLAG_SET_CMDLINE(size_t, NewSize, param); |
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} |
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}; |
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class CheckYoungInitial : public UnaryExecutor { |
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public: |
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CheckYoungInitial(size_t param) : UnaryExecutor(param) { } |
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void execute() { |
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MarkSweepPolicy msp; |
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msp.initialize_all(); |
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ASSERT_EQ(param, msp.initial_young_size()); |
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} |
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}; |
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class SetOldSizeCmd : public UnaryExecutor { |
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public: |
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SetOldSizeCmd(size_t param) : UnaryExecutor(param) { } |
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void execute() { |
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FLAG_SET_CMDLINE(size_t, OldSize, param); |
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} |
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}; |
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class SetMaxNewSizeCmd : public BinaryExecutor { |
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public: |
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SetMaxNewSizeCmd(size_t param1, size_t param2) : BinaryExecutor(param1, param2) { } |
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void execute() { |
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size_t heap_alignment = CollectorPolicy::compute_heap_alignment(); |
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size_t new_size_value = align_up(MaxHeapSize, heap_alignment) |
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- param1 + param2; |
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FLAG_SET_CMDLINE(size_t, MaxNewSize, new_size_value); |
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} |
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}; |
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class CheckOldMin : public UnaryExecutor { |
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public: |
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CheckOldMin(size_t param) : UnaryExecutor(param) { } |
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void execute() { |
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MarkSweepPolicy msp; |
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msp.initialize_all(); |
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ASSERT_LE(msp.min_old_size(), param); |
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} |
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}; |
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class CheckOldInitial : public Executor { |
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public: |
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void execute() { |
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size_t heap_alignment = CollectorPolicy::compute_heap_alignment(); |
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MarkSweepPolicy msp; |
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msp.initialize_all(); |
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size_t expected_old_initial = align_up(InitialHeapSize, heap_alignment) |
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- MaxNewSize; |
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ASSERT_EQ(expected_old_initial, msp.initial_old_size()); |
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} |
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}; |
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class CheckOldInitialMaxNewSize : public BinaryExecutor { |
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public: |
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CheckOldInitialMaxNewSize(size_t param1, size_t param2) : BinaryExecutor(param1, param2) { } |
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void execute() { |
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size_t heap_alignment = CollectorPolicy::compute_heap_alignment(); |
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size_t new_size_value = align_up(MaxHeapSize, heap_alignment) |
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- param1 + param2; |
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MarkSweepPolicy msp; |
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msp.initialize_all(); |
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size_t expected_old_initial = align_up(MaxHeapSize, heap_alignment) |
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- new_size_value; |
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ASSERT_EQ(expected_old_initial, msp.initial_old_size()); |
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} |
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}; |
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}; |
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// Testing that the NewSize flag is handled correct is hard because it |
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// depends on so many other configurable variables. These tests only try to |
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// verify that there are some basic rules for NewSize honored by the policies. |
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// If NewSize has been ergonomically set, the collector policy |
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// should use it for min |
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TEST_VM(CollectorPolicy, young_min_ergo) { |
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TestGenCollectorPolicy::SetNewSizeErgo setter(20 * M); |
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TestGenCollectorPolicy::CheckYoungMin checker(20 * M); |
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TestGenCollectorPolicy::TestWrapper::test(&setter, &checker); |
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} |
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// If NewSize has been ergonomically set, the collector policy |
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// should use it for min but calculate the initial young size |
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// using NewRatio. |
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TEST_VM(CollectorPolicy, young_scaled_initial_ergo) { |
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TestGenCollectorPolicy::SetNewSizeErgo setter(20 * M); |
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TestGenCollectorPolicy::CheckScaledYoungInitial checker; |
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TestGenCollectorPolicy::TestWrapper::test(&setter, &checker); |
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} |
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// Since a flag has been set with FLAG_SET_CMDLINE it |
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// will be treated as it have been set on the command line for |
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// the rest of the VM lifetime. This is an irreversible change and |
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// could impact other tests so we use TEST_OTHER_VM |
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TEST_OTHER_VM(CollectorPolicy, young_cmd) { |
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// If NewSize is set on the command line, it should be used |
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// for both min and initial young size if less than min heap. |
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TestGenCollectorPolicy::SetNewSizeCmd setter(20 * M); |
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TestGenCollectorPolicy::CheckYoungMin checker_min(20 * M); |
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TestGenCollectorPolicy::TestWrapper::test(&setter, &checker_min); |
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TestGenCollectorPolicy::CheckYoungInitial checker_initial(20 * M); |
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TestGenCollectorPolicy::TestWrapper::test(&setter, &checker_initial); |
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// If NewSize is set on command line, but is larger than the min |
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// heap size, it should only be used for initial young size. |
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TestGenCollectorPolicy::SetNewSizeCmd setter_large(80 * M); |
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TestGenCollectorPolicy::CheckYoungInitial checker_large(80 * M); |
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TestGenCollectorPolicy::TestWrapper::test(&setter_large, &checker_large); |
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} |
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// Since a flag has been set with FLAG_SET_CMDLINE it |
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// will be treated as it have been set on the command line for |
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// the rest of the VM lifetime. This is an irreversible change and |
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// could impact other tests so we use TEST_OTHER_VM |
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TEST_OTHER_VM(CollectorPolicy, old_cmd) { |
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// If OldSize is set on the command line, it should be used |
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// for both min and initial old size if less than min heap. |
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TestGenCollectorPolicy::SetOldSizeCmd setter(20 * M); |
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TestGenCollectorPolicy::CheckOldMin checker_min(20 * M); |
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TestGenCollectorPolicy::TestWrapper::test(&setter, &checker_min); |
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TestGenCollectorPolicy::CheckOldInitial checker_initial; |
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TestGenCollectorPolicy::TestWrapper::test(&setter, &checker_initial); |
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// If MaxNewSize is large, the maximum OldSize will be less than |
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// what's requested on the command line and it should be reset |
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// ergonomically. |
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// We intentionally set MaxNewSize + OldSize > MaxHeapSize |
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TestGenCollectorPolicy::SetOldSizeCmd setter_old_size(30 * M); |
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TestGenCollectorPolicy::SetMaxNewSizeCmd setter_max_new_size(30 * M, 20 * M); |
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TestGenCollectorPolicy::CheckOldInitialMaxNewSize checker_large(30 * M, 20 * M); |
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TestGenCollectorPolicy::TestWrapper::test(&setter_old_size, &setter_max_new_size, &checker_large); |
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} |