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comparison src/share/vm/gc_implementation/g1/concurrentG1Refine.cpp @ 795:215f81b4d9b3

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6841831: G1: assert(contains_reference(from),"We just added it!") fires Summary: During parallel rset updating we have to make sure that the worker ids of the refinement threads do not intersect with the worker ids that can be claimed by the mutator threads. Reviewed-by: tonyp
author iveresov
date Mon, 18 May 2009 11:52:46 -0700
parents 315a5d70b295
children f89cf529c3c7
comparison
equal deleted inserted replaced
794:315a5d70b295 795:215f81b4d9b3
31 _def_use_cache(false), _use_cache(false), 31 _def_use_cache(false), _use_cache(false),
32 _n_periods(0), _total_cards(0), _total_travs(0), 32 _n_periods(0), _total_cards(0), _total_travs(0),
33 _threads(NULL), _n_threads(0) 33 _threads(NULL), _n_threads(0)
34 { 34 {
35 if (G1ConcRefine) { 35 if (G1ConcRefine) {
36 _n_threads = (G1ParallelRSetThreads > 0) ? G1ParallelRSetThreads : ParallelGCThreads; 36 _n_threads = (int)thread_num();
37 if (_n_threads > 0) { 37 if (_n_threads > 0) {
38 _threads = NEW_C_HEAP_ARRAY(ConcurrentG1RefineThread*, _n_threads); 38 _threads = NEW_C_HEAP_ARRAY(ConcurrentG1RefineThread*, _n_threads);
39 int worker_id_offset = (int)DirtyCardQueueSet::num_par_ids();
39 ConcurrentG1RefineThread *next = NULL; 40 ConcurrentG1RefineThread *next = NULL;
40 for (int i = _n_threads - 1; i >= 0; i--) { 41 for (int i = _n_threads - 1; i >= 0; i--) {
41 ConcurrentG1RefineThread* t = new ConcurrentG1RefineThread(this, next, i); 42 ConcurrentG1RefineThread* t = new ConcurrentG1RefineThread(this, next, worker_id_offset, i);
42 assert(t != NULL, "Conc refine should have been created"); 43 assert(t != NULL, "Conc refine should have been created");
43 assert(t->cg1r() == this, "Conc refine thread should refer to this"); 44 assert(t->cg1r() == this, "Conc refine thread should refer to this");
44 _threads[i] = t; 45 _threads[i] = t;
45 next = t; 46 next = t;
46 } 47 }
47 } 48 }
48 } 49 }
50 }
51
52 size_t ConcurrentG1Refine::thread_num() {
53 if (G1ConcRefine) {
54 return (G1ParallelRSetThreads > 0) ? G1ParallelRSetThreads : ParallelGCThreads;
55 }
56 return 0;
49 } 57 }
50 58
51 void ConcurrentG1Refine::init() { 59 void ConcurrentG1Refine::init() {
52 if (G1ConcRSLogCacheSize > 0 || G1ConcRSCountTraversals) { 60 if (G1ConcRSLogCacheSize > 0 || G1ConcRSCountTraversals) {
53 G1CollectedHeap* g1h = G1CollectedHeap::heap(); 61 G1CollectedHeap* g1h = G1CollectedHeap::heap();