diff -r e45861098f5a -r fec48bf5a827 hotspot/src/share/vm/gc/g1/g1GCPhaseTimes.hpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/hotspot/src/share/vm/gc/g1/g1GCPhaseTimes.hpp Wed May 13 15:16:06 2015 +0200 @@ -0,0 +1,289 @@ +/* + * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + * + */ + +#ifndef SHARE_VM_GC_G1_G1GCPHASETIMES_HPP +#define SHARE_VM_GC_G1_G1GCPHASETIMES_HPP + +#include "memory/allocation.hpp" + +class LineBuffer; + +template class WorkerDataArray; + +class G1GCPhaseTimes : public CHeapObj { + friend class G1GCParPhasePrinter; + + uint _active_gc_threads; + uint _max_gc_threads; + + public: + enum GCParPhases { + GCWorkerStart, + ExtRootScan, + ThreadRoots, + StringTableRoots, + UniverseRoots, + JNIRoots, + ObjectSynchronizerRoots, + FlatProfilerRoots, + ManagementRoots, + SystemDictionaryRoots, + CLDGRoots, + JVMTIRoots, + CMRefRoots, + WaitForStrongCLD, + WeakCLDRoots, + SATBFiltering, + UpdateRS, + ScanRS, + CodeRoots, + ObjCopy, + Termination, + Other, + GCWorkerTotal, + GCWorkerEnd, + StringDedupQueueFixup, + StringDedupTableFixup, + RedirtyCards, + GCParPhasesSentinel + }; + + private: + // Markers for grouping the phases in the GCPhases enum above + static const int GCMainParPhasesLast = GCWorkerEnd; + static const int StringDedupPhasesFirst = StringDedupQueueFixup; + static const int StringDedupPhasesLast = StringDedupTableFixup; + + WorkerDataArray* _gc_par_phases[GCParPhasesSentinel]; + WorkerDataArray* _update_rs_processed_buffers; + WorkerDataArray* _termination_attempts; + WorkerDataArray* _redirtied_cards; + + double _cur_collection_par_time_ms; + double _cur_collection_code_root_fixup_time_ms; + double _cur_strong_code_root_purge_time_ms; + + double _cur_evac_fail_recalc_used; + double _cur_evac_fail_restore_remsets; + double _cur_evac_fail_remove_self_forwards; + + double _cur_string_dedup_fixup_time_ms; + + double _cur_clear_ct_time_ms; + double _cur_ref_proc_time_ms; + double _cur_ref_enq_time_ms; + + double _cur_collection_start_sec; + double _root_region_scan_wait_time_ms; + + double _recorded_young_cset_choice_time_ms; + double _recorded_non_young_cset_choice_time_ms; + + double _recorded_redirty_logged_cards_time_ms; + + double _recorded_young_free_cset_time_ms; + double _recorded_non_young_free_cset_time_ms; + + double _cur_fast_reclaim_humongous_time_ms; + double _cur_fast_reclaim_humongous_register_time_ms; + size_t _cur_fast_reclaim_humongous_total; + size_t _cur_fast_reclaim_humongous_candidates; + size_t _cur_fast_reclaim_humongous_reclaimed; + + double _cur_verify_before_time_ms; + double _cur_verify_after_time_ms; + + // Helper methods for detailed logging + void print_stats(int level, const char* str, double value); + void print_stats(int level, const char* str, size_t value); + void print_stats(int level, const char* str, double value, uint workers); + + public: + G1GCPhaseTimes(uint max_gc_threads); + void note_gc_start(uint active_gc_threads, bool mark_in_progress); + void note_gc_end(); + void print(double pause_time_sec); + + // record the time a phase took in seconds + void record_time_secs(GCParPhases phase, uint worker_i, double secs); + + // add a number of seconds to a phase + void add_time_secs(GCParPhases phase, uint worker_i, double secs); + + void record_thread_work_item(GCParPhases phase, uint worker_i, size_t count); + + // return the average time for a phase in milliseconds + double average_time_ms(GCParPhases phase); + + size_t sum_thread_work_items(GCParPhases phase); + + private: + double get_time_ms(GCParPhases phase, uint worker_i); + double sum_time_ms(GCParPhases phase); + double min_time_ms(GCParPhases phase); + double max_time_ms(GCParPhases phase); + size_t get_thread_work_item(GCParPhases phase, uint worker_i); + double average_thread_work_items(GCParPhases phase); + size_t min_thread_work_items(GCParPhases phase); + size_t max_thread_work_items(GCParPhases phase); + + public: + + void record_clear_ct_time(double ms) { + _cur_clear_ct_time_ms = ms; + } + + void record_par_time(double ms) { + _cur_collection_par_time_ms = ms; + } + + void record_code_root_fixup_time(double ms) { + _cur_collection_code_root_fixup_time_ms = ms; + } + + void record_strong_code_root_purge_time(double ms) { + _cur_strong_code_root_purge_time_ms = ms; + } + + void record_evac_fail_recalc_used_time(double ms) { + _cur_evac_fail_recalc_used = ms; + } + + void record_evac_fail_restore_remsets(double ms) { + _cur_evac_fail_restore_remsets = ms; + } + + void record_evac_fail_remove_self_forwards(double ms) { + _cur_evac_fail_remove_self_forwards = ms; + } + + void record_string_dedup_fixup_time(double ms) { + _cur_string_dedup_fixup_time_ms = ms; + } + + void record_ref_proc_time(double ms) { + _cur_ref_proc_time_ms = ms; + } + + void record_ref_enq_time(double ms) { + _cur_ref_enq_time_ms = ms; + } + + void record_root_region_scan_wait_time(double time_ms) { + _root_region_scan_wait_time_ms = time_ms; + } + + void record_young_free_cset_time_ms(double time_ms) { + _recorded_young_free_cset_time_ms = time_ms; + } + + void record_non_young_free_cset_time_ms(double time_ms) { + _recorded_non_young_free_cset_time_ms = time_ms; + } + + void record_fast_reclaim_humongous_stats(double time_ms, size_t total, size_t candidates) { + _cur_fast_reclaim_humongous_register_time_ms = time_ms; + _cur_fast_reclaim_humongous_total = total; + _cur_fast_reclaim_humongous_candidates = candidates; + } + + void record_fast_reclaim_humongous_time_ms(double value, size_t reclaimed) { + _cur_fast_reclaim_humongous_time_ms = value; + _cur_fast_reclaim_humongous_reclaimed = reclaimed; + } + + void record_young_cset_choice_time_ms(double time_ms) { + _recorded_young_cset_choice_time_ms = time_ms; + } + + void record_non_young_cset_choice_time_ms(double time_ms) { + _recorded_non_young_cset_choice_time_ms = time_ms; + } + + void record_redirty_logged_cards_time_ms(double time_ms) { + _recorded_redirty_logged_cards_time_ms = time_ms; + } + + void record_cur_collection_start_sec(double time_ms) { + _cur_collection_start_sec = time_ms; + } + + void record_verify_before_time_ms(double time_ms) { + _cur_verify_before_time_ms = time_ms; + } + + void record_verify_after_time_ms(double time_ms) { + _cur_verify_after_time_ms = time_ms; + } + + double accounted_time_ms(); + + double cur_collection_start_sec() { + return _cur_collection_start_sec; + } + + double cur_collection_par_time_ms() { + return _cur_collection_par_time_ms; + } + + double cur_clear_ct_time_ms() { + return _cur_clear_ct_time_ms; + } + + double root_region_scan_wait_time_ms() { + return _root_region_scan_wait_time_ms; + } + + double young_cset_choice_time_ms() { + return _recorded_young_cset_choice_time_ms; + } + + double young_free_cset_time_ms() { + return _recorded_young_free_cset_time_ms; + } + + double non_young_cset_choice_time_ms() { + return _recorded_non_young_cset_choice_time_ms; + } + + double non_young_free_cset_time_ms() { + return _recorded_non_young_free_cset_time_ms; + } + + double fast_reclaim_humongous_time_ms() { + return _cur_fast_reclaim_humongous_time_ms; + } +}; + +class G1GCParPhaseTimesTracker : public StackObj { + double _start_time; + G1GCPhaseTimes::GCParPhases _phase; + G1GCPhaseTimes* _phase_times; + uint _worker_id; +public: + G1GCParPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1GCPhaseTimes::GCParPhases phase, uint worker_id); + ~G1GCParPhaseTimesTracker(); +}; + +#endif // SHARE_VM_GC_G1_G1GCPHASETIMES_HPP