1055
1056 G1CMConcurrentMarkingTask markingTask(this, cmThread());
1057 _parallel_workers->set_active_workers(active_workers);
1058 _parallel_workers->run_task(&markingTask);
1059 print_stats();
1060 }
1061
1062 void G1ConcurrentMark::checkpointRootsFinal(bool clear_all_soft_refs) {
1063 // world is stopped at this checkpoint
1064 assert(SafepointSynchronize::is_at_safepoint(),
1065 "world should be stopped");
1066
1067 G1CollectedHeap* g1h = G1CollectedHeap::heap();
1068
1069 // If a full collection has happened, we shouldn't do this.
1070 if (has_aborted()) {
1071 g1h->collector_state()->set_mark_in_progress(false); // So bitmap clearing isn't confused
1072 return;
1073 }
1074
1075 SvcGCMarker sgcm(SvcGCMarker::OTHER);
1076
1077 if (VerifyDuringGC) {
1078 HandleMark hm; // handle scope
1079 g1h->prepare_for_verify();
1080 Universe::verify(VerifyOption_G1UsePrevMarking, "During GC (before)");
1081 }
1082 g1h->verifier()->check_bitmaps("Remark Start");
1083
1084 G1CollectorPolicy* g1p = g1h->g1_policy();
1085 g1p->record_concurrent_mark_remark_start();
1086
1087 double start = os::elapsedTime();
1088
1089 checkpointRootsFinalWork();
1090
1091 double mark_work_end = os::elapsedTime();
1092
1093 weakRefsWork(clear_all_soft_refs);
1094
1095 if (has_overflown()) {
1096 // Oops. We overflowed. Restart concurrent marking.
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1055
1056 G1CMConcurrentMarkingTask markingTask(this, cmThread());
1057 _parallel_workers->set_active_workers(active_workers);
1058 _parallel_workers->run_task(&markingTask);
1059 print_stats();
1060 }
1061
1062 void G1ConcurrentMark::checkpointRootsFinal(bool clear_all_soft_refs) {
1063 // world is stopped at this checkpoint
1064 assert(SafepointSynchronize::is_at_safepoint(),
1065 "world should be stopped");
1066
1067 G1CollectedHeap* g1h = G1CollectedHeap::heap();
1068
1069 // If a full collection has happened, we shouldn't do this.
1070 if (has_aborted()) {
1071 g1h->collector_state()->set_mark_in_progress(false); // So bitmap clearing isn't confused
1072 return;
1073 }
1074
1075 if (VerifyDuringGC) {
1076 HandleMark hm; // handle scope
1077 g1h->prepare_for_verify();
1078 Universe::verify(VerifyOption_G1UsePrevMarking, "During GC (before)");
1079 }
1080 g1h->verifier()->check_bitmaps("Remark Start");
1081
1082 G1CollectorPolicy* g1p = g1h->g1_policy();
1083 g1p->record_concurrent_mark_remark_start();
1084
1085 double start = os::elapsedTime();
1086
1087 checkpointRootsFinalWork();
1088
1089 double mark_work_end = os::elapsedTime();
1090
1091 weakRefsWork(clear_all_soft_refs);
1092
1093 if (has_overflown()) {
1094 // Oops. We overflowed. Restart concurrent marking.
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