author | trims |
Thu, 27 May 2010 19:08:38 -0700 | |
changeset 5547 | f4b087cbb361 |
parent 5350 | cccf0925702e |
child 6424 | 9ab433735f7c |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2007, 2010, 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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# include "incls/_precompiled.incl" |
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# include "incls/_g1MemoryPool.cpp.incl" |
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G1MemoryPoolSuper::G1MemoryPoolSuper(G1CollectedHeap* g1h, |
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const char* name, |
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size_t init_size, |
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size_t max_size, |
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bool support_usage_threshold) : |
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_g1h(g1h), CollectedMemoryPool(name, |
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MemoryPool::Heap, |
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init_size, |
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max_size, |
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support_usage_threshold) { |
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assert(UseG1GC, "sanity"); |
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} |
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// See the comment at the top of g1MemoryPool.hpp |
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size_t G1MemoryPoolSuper::eden_space_committed(G1CollectedHeap* g1h) { |
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return MAX2(eden_space_used(g1h), (size_t) HeapRegion::GrainBytes); |
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} |
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// See the comment at the top of g1MemoryPool.hpp |
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size_t G1MemoryPoolSuper::eden_space_used(G1CollectedHeap* g1h) { |
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size_t young_list_length = g1h->young_list()->length(); |
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size_t eden_used = young_list_length * HeapRegion::GrainBytes; |
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size_t survivor_used = survivor_space_used(g1h); |
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eden_used = subtract_up_to_zero(eden_used, survivor_used); |
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return eden_used; |
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} |
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// See the comment at the top of g1MemoryPool.hpp |
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size_t G1MemoryPoolSuper::eden_space_max(G1CollectedHeap* g1h) { |
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// This should ensure that it returns a value no smaller than the |
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// region size. Currently, eden_space_committed() guarantees that. |
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return eden_space_committed(g1h); |
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} |
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// See the comment at the top of g1MemoryPool.hpp |
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size_t G1MemoryPoolSuper::survivor_space_committed(G1CollectedHeap* g1h) { |
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return MAX2(survivor_space_used(g1h), (size_t) HeapRegion::GrainBytes); |
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} |
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// See the comment at the top of g1MemoryPool.hpp |
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size_t G1MemoryPoolSuper::survivor_space_used(G1CollectedHeap* g1h) { |
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size_t survivor_num = g1h->g1_policy()->recorded_survivor_regions(); |
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size_t survivor_used = survivor_num * HeapRegion::GrainBytes; |
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return survivor_used; |
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} |
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// See the comment at the top of g1MemoryPool.hpp |
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size_t G1MemoryPoolSuper::survivor_space_max(G1CollectedHeap* g1h) { |
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// This should ensure that it returns a value no smaller than the |
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// region size. Currently, survivor_space_committed() guarantees that. |
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return survivor_space_committed(g1h); |
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} |
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// See the comment at the top of g1MemoryPool.hpp |
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size_t G1MemoryPoolSuper::old_space_committed(G1CollectedHeap* g1h) { |
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size_t committed = overall_committed(g1h); |
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size_t eden_committed = eden_space_committed(g1h); |
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size_t survivor_committed = survivor_space_committed(g1h); |
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committed = subtract_up_to_zero(committed, eden_committed); |
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committed = subtract_up_to_zero(committed, survivor_committed); |
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committed = MAX2(committed, (size_t) HeapRegion::GrainBytes); |
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return committed; |
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} |
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// See the comment at the top of g1MemoryPool.hpp |
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size_t G1MemoryPoolSuper::old_space_used(G1CollectedHeap* g1h) { |
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size_t used = overall_used(g1h); |
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size_t eden_used = eden_space_used(g1h); |
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size_t survivor_used = survivor_space_used(g1h); |
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used = subtract_up_to_zero(used, eden_used); |
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used = subtract_up_to_zero(used, survivor_used); |
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return used; |
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} |
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// See the comment at the top of g1MemoryPool.hpp |
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size_t G1MemoryPoolSuper::old_space_max(G1CollectedHeap* g1h) { |
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size_t max = overall_max(g1h); |
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size_t eden_max = eden_space_max(g1h); |
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size_t survivor_max = survivor_space_max(g1h); |
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max = subtract_up_to_zero(max, eden_max); |
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max = subtract_up_to_zero(max, survivor_max); |
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max = MAX2(max, (size_t) HeapRegion::GrainBytes); |
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return max; |
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} |
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G1EdenPool::G1EdenPool(G1CollectedHeap* g1h) : |
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G1MemoryPoolSuper(g1h, |
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"G1 Eden", |
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eden_space_committed(g1h), /* init_size */ |
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eden_space_max(g1h), /* max_size */ |
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false /* support_usage_threshold */) { |
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} |
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MemoryUsage G1EdenPool::get_memory_usage() { |
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size_t initial_sz = initial_size(); |
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size_t max_sz = max_size(); |
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size_t used = used_in_bytes(); |
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size_t committed = eden_space_committed(_g1h); |
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return MemoryUsage(initial_sz, used, committed, max_sz); |
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} |
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G1SurvivorPool::G1SurvivorPool(G1CollectedHeap* g1h) : |
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G1MemoryPoolSuper(g1h, |
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"G1 Survivor", |
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survivor_space_committed(g1h), /* init_size */ |
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survivor_space_max(g1h), /* max_size */ |
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false /* support_usage_threshold */) { |
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} |
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MemoryUsage G1SurvivorPool::get_memory_usage() { |
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size_t initial_sz = initial_size(); |
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size_t max_sz = max_size(); |
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size_t used = used_in_bytes(); |
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size_t committed = survivor_space_committed(_g1h); |
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return MemoryUsage(initial_sz, used, committed, max_sz); |
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} |
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G1OldGenPool::G1OldGenPool(G1CollectedHeap* g1h) : |
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G1MemoryPoolSuper(g1h, |
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"G1 Old Gen", |
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old_space_committed(g1h), /* init_size */ |
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old_space_max(g1h), /* max_size */ |
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true /* support_usage_threshold */) { |
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} |
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MemoryUsage G1OldGenPool::get_memory_usage() { |
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size_t initial_sz = initial_size(); |
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size_t max_sz = max_size(); |
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size_t used = used_in_bytes(); |
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size_t committed = old_space_committed(_g1h); |
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return MemoryUsage(initial_sz, used, committed, max_sz); |
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} |