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comparison src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp @ 22894:2af69bed8db6

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8058801: G1TraceReclaimDeadHumongousObjectsAtYoungGC only prints humongous object liveness output when there is at least one candidate humongous object Summary: If G1TraceReclaimDeadHumongousObjectsAtYoungGC is enabled, always print humongous object liveness output. Reviewed-by: tschatzl Contributed-by: sangheon.kim@oracle.com
author tschatzl
date Fri, 10 Oct 2014 12:15:51 +0200
parents f74dbdd45754
children f2e3f0e1f97d
comparison
equal deleted inserted replaced
22892:951689652d2c 22894:2af69bed8db6
3718 heap_region_iterate(&cl); 3718 heap_region_iterate(&cl);
3719 g1_policy()->phase_times()->record_fast_reclaim_humongous_stats(cl.total_humongous(), 3719 g1_policy()->phase_times()->record_fast_reclaim_humongous_stats(cl.total_humongous(),
3720 cl.candidate_humongous()); 3720 cl.candidate_humongous());
3721 _has_humongous_reclaim_candidates = cl.candidate_humongous() > 0; 3721 _has_humongous_reclaim_candidates = cl.candidate_humongous() > 0;
3722 3722
3723 if (_has_humongous_reclaim_candidates) { 3723 if (_has_humongous_reclaim_candidates || G1TraceReclaimDeadHumongousObjectsAtYoungGC) {
3724 clear_humongous_is_live_table(); 3724 clear_humongous_is_live_table();
3725 } 3725 }
3726 } 3726 }
3727 3727
3728 void 3728 void
6418 uint region_idx = r->hrm_index(); 6418 uint region_idx = r->hrm_index();
6419 if (g1h->humongous_is_live(region_idx) || 6419 if (g1h->humongous_is_live(region_idx) ||
6420 g1h->humongous_region_is_always_live(region_idx)) { 6420 g1h->humongous_region_is_always_live(region_idx)) {
6421 6421
6422 if (G1TraceReclaimDeadHumongousObjectsAtYoungGC) { 6422 if (G1TraceReclaimDeadHumongousObjectsAtYoungGC) {
6423 gclog_or_tty->print_cr("Live humongous %d region %d with remset "SIZE_FORMAT" code roots "SIZE_FORMAT" is marked %d live-other %d obj array %d", 6423 gclog_or_tty->print_cr("Live humongous %d region %d size "SIZE_FORMAT" with remset "SIZE_FORMAT" code roots "SIZE_FORMAT" is marked %d live-other %d obj array %d",
6424 r->isHumongous(), 6424 r->isHumongous(),
6425 region_idx, 6425 region_idx,
6426 obj->size()*HeapWordSize,
6426 r->rem_set()->occupied(), 6427 r->rem_set()->occupied(),
6427 r->rem_set()->strong_code_roots_list_length(), 6428 r->rem_set()->strong_code_roots_list_length(),
6428 next_bitmap->isMarked(r->bottom()), 6429 next_bitmap->isMarked(r->bottom()),
6429 g1h->humongous_is_live(region_idx), 6430 g1h->humongous_is_live(region_idx),
6430 obj->is_objArray() 6431 obj->is_objArray()
6437 guarantee(!obj->is_objArray(), 6438 guarantee(!obj->is_objArray(),
6438 err_msg("Eagerly reclaiming object arrays is not supported, but the object "PTR_FORMAT" is.", 6439 err_msg("Eagerly reclaiming object arrays is not supported, but the object "PTR_FORMAT" is.",
6439 r->bottom())); 6440 r->bottom()));
6440 6441
6441 if (G1TraceReclaimDeadHumongousObjectsAtYoungGC) { 6442 if (G1TraceReclaimDeadHumongousObjectsAtYoungGC) {
6442 gclog_or_tty->print_cr("Reclaim humongous region %d start "PTR_FORMAT" region %d length "UINT32_FORMAT" with remset "SIZE_FORMAT" code roots "SIZE_FORMAT" is marked %d live-other %d obj array %d", 6443 gclog_or_tty->print_cr("Reclaim humongous region %d size "SIZE_FORMAT" start "PTR_FORMAT" region %d length "UINT32_FORMAT" with remset "SIZE_FORMAT" code roots "SIZE_FORMAT" is marked %d live-other ",
6443 r->isHumongous(), 6444 r->isHumongous(),
6445 obj->size()*HeapWordSize,
6444 r->bottom(), 6446 r->bottom(),
6445 region_idx, 6447 region_idx,
6446 r->region_num(), 6448 r->region_num(),
6447 r->rem_set()->occupied(), 6449 r->rem_set()->occupied(),
6448 r->rem_set()->strong_code_roots_list_length(), 6450 r->rem_set()->strong_code_roots_list_length(),
6477 }; 6479 };
6478 6480
6479 void G1CollectedHeap::eagerly_reclaim_humongous_regions() { 6481 void G1CollectedHeap::eagerly_reclaim_humongous_regions() {
6480 assert_at_safepoint(true); 6482 assert_at_safepoint(true);
6481 6483
6482 if (!G1ReclaimDeadHumongousObjectsAtYoungGC || !_has_humongous_reclaim_candidates) { 6484 if (!G1ReclaimDeadHumongousObjectsAtYoungGC ||
6485 (!_has_humongous_reclaim_candidates && !G1TraceReclaimDeadHumongousObjectsAtYoungGC)) {
6483 g1_policy()->phase_times()->record_fast_reclaim_humongous_time_ms(0.0, 0); 6486 g1_policy()->phase_times()->record_fast_reclaim_humongous_time_ms(0.0, 0);
6484 return; 6487 return;
6485 } 6488 }
6486 6489
6487 double start_time = os::elapsedTime(); 6490 double start_time = os::elapsedTime();