Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/concurrentMarkSweep/cmsPermGen.cpp @ 2379:b099aaf51bf8
6962931: move interned strings out of the perm gen
Reviewed-by: never, coleenp, ysr, jwilhelm
| author | jcoomes |
|---|---|
| date | Tue, 22 Mar 2011 13:36:33 -0700 |
| parents | f95d63e2154a |
| children | 9f059abe8cf2 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "gc_implementation/concurrentMarkSweep/cmsPermGen.hpp" | |
| 27 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.inline.hpp" | |
| 28 #include "gc_implementation/shared/cSpaceCounters.hpp" | |
| 29 #include "gc_interface/collectedHeap.inline.hpp" | |
| 30 #include "memory/blockOffsetTable.inline.hpp" | |
| 31 #include "memory/compactPermGen.hpp" | |
| 32 #include "memory/genCollectedHeap.hpp" | |
| 33 #include "memory/generation.inline.hpp" | |
| 34 #include "memory/permGen.hpp" | |
| 35 #include "memory/universe.hpp" | |
| 36 #include "oops/oop.inline.hpp" | |
| 37 #include "runtime/java.hpp" | |
| 0 | 38 |
| 39 CMSPermGen::CMSPermGen(ReservedSpace rs, size_t initial_byte_size, | |
| 40 CardTableRS* ct, | |
| 41 FreeBlockDictionary::DictionaryChoice dictionaryChoice) { | |
| 42 CMSPermGenGen* g = | |
| 43 new CMSPermGenGen(rs, initial_byte_size, -1, ct); | |
| 44 if (g == NULL) { | |
| 45 vm_exit_during_initialization("Could not allocate a CompactingPermGen"); | |
| 46 } | |
| 47 | |
| 48 g->initialize_performance_counters(); | |
| 49 | |
| 50 _gen = g; | |
| 51 } | |
| 52 | |
| 53 HeapWord* CMSPermGen::mem_allocate(size_t size) { | |
| 54 Mutex* lock = _gen->freelistLock(); | |
| 55 bool lock_owned = lock->owned_by_self(); | |
| 56 if (lock_owned) { | |
| 57 MutexUnlocker mul(lock); | |
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58 return mem_allocate_in_gen(size, _gen); |
| 0 | 59 } else { |
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60 return mem_allocate_in_gen(size, _gen); |
| 0 | 61 } |
| 62 } | |
| 63 | |
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64 HeapWord* CMSPermGen::request_expand_and_allocate(Generation* gen, |
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65 size_t size, |
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66 GCCause::Cause prev_cause /* ignored */) { |
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67 HeapWord* obj = gen->expand_and_allocate(size, false); |
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68 if (gen->capacity() >= _capacity_expansion_limit) { |
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69 set_capacity_expansion_limit(gen->capacity() + MaxPermHeapExpansion); |
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70 assert(((ConcurrentMarkSweepGeneration*)gen)->should_concurrent_collect(), |
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71 "Should kick off a collection if one not in progress"); |
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72 } |
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73 return obj; |
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74 } |
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75 |
| 0 | 76 void CMSPermGen::compute_new_size() { |
| 77 _gen->compute_new_size(); | |
| 78 } | |
| 79 | |
| 80 void CMSPermGenGen::initialize_performance_counters() { | |
| 81 | |
| 82 const char* gen_name = "perm"; | |
| 83 | |
| 84 // Generation Counters - generation 2, 1 subspace | |
| 85 _gen_counters = new GenerationCounters(gen_name, 2, 1, &_virtual_space); | |
| 86 | |
| 87 _gc_counters = NULL; | |
| 88 | |
| 89 _space_counters = new GSpaceCounters(gen_name, 0, | |
| 90 _virtual_space.reserved_size(), | |
| 91 this, _gen_counters); | |
| 92 } |