frequent YGC.
# To display the perf.data header info, please use --header/--header-only options.
#
#
# Total Lost Samples: 0
#
# Samples: 535K of event 'cycles'
# Event count (approx.): 1819606527710
#
# Children Self Command Shared Object Symbol
# ........ ........ .............. ..................... ............................................................................................................
#
25.03% 0.00% java libjvm.so [.] java_start
|
---java_start
|
|--13.78%--GangWorker::loop
| |
| --13.56%--G1ParTask::work
| |
| |--10.38%--G1ParEvacuateFollowersClosure::do_void
| | |
| | |--8.76%--G1ParScanThreadState::trim_queue
| | | |
| | | --4.66%--G1ParScanThreadState::copy_to_survivor_space
| | | |
| | | |--1.81%--__memcpy_ssse3_back
| | | |
| | | --0.81%--InstanceKlass::oop_oop_iterate_backwards_nv
| | |
| | --1.26%--GenericTaskQueueSet<OverflowTaskQueue<StarTask, (MemoryType)5, 131072u>, (MemoryType)5>::steal_best_of_2
| |
| --3.17%--G1RootProcessor::scan_remembered_sets
| G1RemSet::oops_into_collection_set_do
| |
| |--1.99%--G1RemSet::scanRS
| | |
| | --1.99%--G1CollectedHeap::collection_set_iterate_from
| | |
| | --1.99%--ScanRSClosure::doHeapRegion
| | |
| | |--1.15%--DirtyCardToOopClosure::do_MemRegion
| | | |
| | | --0.51%--HeapRegionDCTOC::walk_mem_region
| | |
| | --0.67%--HeapRegionRemSetIterator::has_next
| |
| --1.18%--G1CollectedHeap::iterate_dirty_card_closure
| |
| --1.16%--DirtyCardQueueSet::apply_closure_to_completed_buffer
| |
| --1.16%--DirtyCardQueueSet::apply_closure_to_completed_buffer_helper
| |
| --1.16%--RefineRecordRefsIntoCSCardTableEntryClosure::do_card_ptr
| |
| --1.14%--G1RemSet::refine_card
| |
| --0.80%--HeapRegion::oops_on_card_seq_iterate_careful
|
--11.25%--ConcurrentG1RefineThread::run
|
--11.25%--DirtyCardQueueSet::apply_closure_to_completed_buffer
|
--11.24%--DirtyCardQueueSet::apply_closure_to_completed_buffer_helper
|
--11.22%--RefineCardTableEntryClosure::do_card_ptr
|
--11.06%--G1RemSet::refine_card
|
--9.87%--HeapRegion::oops_on_card_seq_iterate_careful
|
|--3.96%--ObjArrayKlass::oop_oop_iterate_nv_m
| |
| --3.39%--OtherRegionsTable::add_reference
|
|--2.33%--G1BlockOffsetArray::forward_to_block_containing_addr_slow
| |
| --1.21%--HeapRegion::block_size
| |
| --0.51%--HeapRegion::block_is_obj
|
|--1.97%--InstanceKlass::oop_oop_iterate_nv
| |
| --1.29%--OtherRegionsTable::add_reference
|
--0.67%--G1BlockOffsetArrayContigSpace::block_start_unsafe
25.03% 0.00% java libpthread-2.17.so [.] start_thread
|
---start_thread
java_start
|
|--13.78%--GangWorker::loop
| |
| --13.56%--G1ParTask::work
| |
| |--10.38%--G1ParEvacuateFollowersClosure::do_void
| | |
| | |--8.76%--G1ParScanThreadState::trim_queue
| | | |
| | | --4.66%--G1ParScanThreadState::copy_to_survivor_space
| | | |
| | | |--1.81%--__memcpy_ssse3_back
| | | |
| | | --0.81%--InstanceKlass::oop_oop_iterate_backwards_nv
| | |
| | --1.26%--GenericTaskQueueSet<OverflowTaskQueue<StarTask, (MemoryType)5, 131072u>, (MemoryType)5>::steal_best_of_2
| |
| --3.17%--G1RootProcessor::scan_remembered_sets
| G1RemSet::oops_into_collection_set_do
| |
| |--1.99%--G1RemSet::scanRS
| | |
| | --1.99%--G1CollectedHeap::collection_set_iterate_from
| | |
| | --1.99%--ScanRSClosure::doHeapRegion
| | |
| | |--1.15%--DirtyCardToOopClosure::do_MemRegion
| | | |
| | | --0.51%--HeapRegionDCTOC::walk_mem_region
| | |
| | --0.67%--HeapRegionRemSetIterator::has_next
| |
| --1.18%--G1CollectedHeap::iterate_dirty_card_closure
| |
| --1.16%--DirtyCardQueueSet::apply_closure_to_completed_buffer
| |
| --1.16%--DirtyCardQueueSet::apply_closure_to_completed_buffer_helper
| |
| --1.16%--RefineRecordRefsIntoCSCardTableEntryClosure::do_card_ptr
| |
| --1.14%--G1RemSet::refine_card
| |
| --0.80%--HeapRegion::oops_on_card_seq_iterate_careful
|
--11.25%--ConcurrentG1RefineThread::run
|
--11.25%--DirtyCardQueueSet::apply_closure_to_completed_buffer
|
--11.24%--DirtyCardQueueSet::apply_closure_to_completed_buffer_helper
|
--11.22%--RefineCardTableEntryClosure::do_card_ptr
|
--11.06%--G1RemSet::refine_card
|
--9.87%--HeapRegion::oops_on_card_seq_iterate_careful
|
|--3.96%--ObjArrayKlass::oop_oop_iterate_nv_m
| |
| --3.39%--OtherRegionsTable::add_reference
|
|--2.33%--G1BlockOffsetArray::forward_to_block_containing_addr_slow
| |
| --1.21%--HeapRegion::block_size
| |
| --0.51%--HeapRegion::block_is_obj
|
|--1.97%--InstanceKlass::oop_oop_iterate_nv
| |
| --1.29%--OtherRegionsTable::add_reference
...