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annotate src/share/vm/services/g1MemoryPool.cpp @ 8733:9def4075da6d

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8008079: G1: Add nextObject routine to CMBitMapRO and replace nextWord Summary: Update the task local finger to the start of the next object when marking aborts, in order to avoid the redundant scanning of all 0's when the marking task restarts, if otherwise updating to the next word. In addition, reuse the routine nextObject() in routine iterate(). Reviewed-by: johnc, ysr Contributed-by: tamao <tao.mao@oracle.com>
author tamao
date Tue, 05 Mar 2013 15:36:56 -0800
parents b9a9ed0f8eeb
children
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1 /*
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2 * Copyright (c) 2007, 2012, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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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.
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22 *
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23 */
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24
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25 #include "precompiled.hpp"
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26 #include "gc_implementation/g1/g1CollectedHeap.hpp"
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27 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
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28 #include "gc_implementation/g1/g1CollectorPolicy.hpp"
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29 #include "gc_implementation/g1/heapRegion.hpp"
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30 #include "services/g1MemoryPool.hpp"
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31
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32 G1MemoryPoolSuper::G1MemoryPoolSuper(G1CollectedHeap* g1h,
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33 const char* name,
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34 size_t init_size,
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35 size_t max_size,
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36 bool support_usage_threshold) :
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37 _g1mm(g1h->g1mm()), CollectedMemoryPool(name,
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38 MemoryPool::Heap,
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39 init_size,
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40 max_size,
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41 support_usage_threshold) {
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42 assert(UseG1GC, "sanity");
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43 }
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44
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45 G1EdenPool::G1EdenPool(G1CollectedHeap* g1h) :
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46 G1MemoryPoolSuper(g1h,
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47 "G1 Eden Space",
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48 g1h->g1mm()->eden_space_committed(), /* init_size */
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49 _undefined_max,
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50 false /* support_usage_threshold */) { }
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51
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52 MemoryUsage G1EdenPool::get_memory_usage() {
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53 size_t initial_sz = initial_size();
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54 size_t max_sz = max_size();
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55 size_t used = used_in_bytes();
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56 size_t committed = _g1mm->eden_space_committed();
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57
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58 return MemoryUsage(initial_sz, used, committed, max_sz);
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59 }
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60
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61 G1SurvivorPool::G1SurvivorPool(G1CollectedHeap* g1h) :
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62 G1MemoryPoolSuper(g1h,
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63 "G1 Survivor Space",
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64 g1h->g1mm()->survivor_space_committed(), /* init_size */
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65 _undefined_max,
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66 false /* support_usage_threshold */) { }
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67
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68 MemoryUsage G1SurvivorPool::get_memory_usage() {
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69 size_t initial_sz = initial_size();
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70 size_t max_sz = max_size();
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71 size_t used = used_in_bytes();
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72 size_t committed = _g1mm->survivor_space_committed();
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73
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74 return MemoryUsage(initial_sz, used, committed, max_sz);
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75 }
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76
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77 G1OldGenPool::G1OldGenPool(G1CollectedHeap* g1h) :
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78 G1MemoryPoolSuper(g1h,
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79 "G1 Old Gen",
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80 g1h->g1mm()->old_space_committed(), /* init_size */
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81 g1h->g1mm()->old_gen_max(),
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82 true /* support_usage_threshold */) { }
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83
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84 MemoryUsage G1OldGenPool::get_memory_usage() {
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85 size_t initial_sz = initial_size();
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86 size_t max_sz = max_size();
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87 size_t used = used_in_bytes();
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88 size_t committed = _g1mm->old_space_committed();
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90 return MemoryUsage(initial_sz, used, committed, max_sz);
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91 }