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comparison src/share/vm/gc_implementation/g1/concurrentMark.cpp @ 4783:023652e49ac0

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7121496: G1: do the per-region evacuation failure handling work in parallel Summary: Parallelize the removal of self forwarding pointers etc. by wrapping in a HeapRegion closure, which is then wrapped inside an AbstractGangTask. Reviewed-by: tonyp, iveresov
author johnc
date Fri, 23 Dec 2011 11:14:18 -0800
parents 776173fc2df9
children 2ace1c4ee8da
comparison
equal deleted inserted replaced
4782:5fd354a959c5 4783:023652e49ac0
1 /* 1 /*
2 * Copyright (c) 2001, 2011, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 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 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
3078 } 3078 }
3079 return false; 3079 return false;
3080 } 3080 }
3081 }; 3081 };
3082 3082
3083 class SetClaimValuesInCSetHRClosure: public HeapRegionClosure {
3084 jint _claim_value;
3085
3086 public:
3087 SetClaimValuesInCSetHRClosure(jint claim_value) :
3088 _claim_value(claim_value) { }
3089
3090 bool doHeapRegion(HeapRegion* hr) {
3091 hr->set_claim_value(_claim_value);
3092 return false;
3093 }
3094 };
3095
3096 class G1ParCompleteMarkInCSetTask: public AbstractGangTask { 3083 class G1ParCompleteMarkInCSetTask: public AbstractGangTask {
3097 protected: 3084 protected:
3098 G1CollectedHeap* _g1h; 3085 G1CollectedHeap* _g1h;
3099 ConcurrentMark* _cm; 3086 ConcurrentMark* _cm;
3100 3087
3133 complete_mark_task.work(0); 3120 complete_mark_task.work(0);
3134 } 3121 }
3135 3122
3136 assert(g1h->check_cset_heap_region_claim_values(HeapRegion::CompleteMarkCSetClaimValue), "sanity"); 3123 assert(g1h->check_cset_heap_region_claim_values(HeapRegion::CompleteMarkCSetClaimValue), "sanity");
3137 3124
3138 // Now reset the claim values in the regions in the collection set. 3125 // Reset the claim values in the regions in the collection set.
3139 SetClaimValuesInCSetHRClosure set_cv_cl(HeapRegion::InitialClaimValue); 3126 g1h->reset_cset_heap_region_claim_values();
3140 g1h->collection_set_iterate(&set_cv_cl);
3141 3127
3142 assert(g1h->check_cset_heap_region_claim_values(HeapRegion::InitialClaimValue), "sanity"); 3128 assert(g1h->check_cset_heap_region_claim_values(HeapRegion::InitialClaimValue), "sanity");
3143 3129
3144 double end_time = os::elapsedTime(); 3130 double end_time = os::elapsedTime();
3145 double elapsed_time_ms = (end_time - start) * 1000.0; 3131 double elapsed_time_ms = (end_time - start) * 1000.0;