diff -r 0437b0f20312 -r 01d31583f25c src/hotspot/share/gc/g1/g1Trace.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/hotspot/share/gc/g1/g1Trace.cpp Wed Sep 04 09:47:51 2019 +0200 @@ -0,0 +1,226 @@ +/* + * Copyright (c) 2019, 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. + * + */ + +#include "precompiled.hpp" +#include "gc/g1/g1EvacuationInfo.hpp" +#include "gc/g1/g1Trace.hpp" +#include "gc/g1/g1YCTypes.hpp" +#include "gc/shared/gcHeapSummary.hpp" +#include "jfr/jfrEvents.hpp" + +void G1NewTracer::report_yc_type(G1YCType type) { + _g1_young_gc_info.set_type(type); +} + +void G1NewTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) { + YoungGCTracer::report_gc_end_impl(timestamp, time_partitions); + send_g1_young_gc_event(); +} + +void G1NewTracer::report_evacuation_info(G1EvacuationInfo* info) { + send_evacuation_info_event(info); +} + +void G1NewTracer::report_evacuation_failed(EvacuationFailedInfo& ef_info) { + send_evacuation_failed_event(ef_info); + ef_info.reset(); +} + +void G1NewTracer::report_evacuation_statistics(const G1EvacSummary& young_summary, const G1EvacSummary& old_summary) const { + send_young_evacuation_statistics(young_summary); + send_old_evacuation_statistics(old_summary); +} + +void G1NewTracer::report_basic_ihop_statistics(size_t threshold, + size_t target_ccupancy, + size_t current_occupancy, + size_t last_allocation_size, + double last_allocation_duration, + double last_marking_length) { + send_basic_ihop_statistics(threshold, + target_ccupancy, + current_occupancy, + last_allocation_size, + last_allocation_duration, + last_marking_length); +} + +void G1NewTracer::report_adaptive_ihop_statistics(size_t threshold, + size_t internal_target_occupancy, + size_t current_occupancy, + size_t additional_buffer_size, + double predicted_allocation_rate, + double predicted_marking_length, + bool prediction_active) { + send_adaptive_ihop_statistics(threshold, + internal_target_occupancy, + additional_buffer_size, + current_occupancy, + predicted_allocation_rate, + predicted_marking_length, + prediction_active); +} + +void G1NewTracer::send_g1_young_gc_event() { + EventG1GarbageCollection e(UNTIMED); + if (e.should_commit()) { + e.set_gcId(GCId::current()); + e.set_type(_g1_young_gc_info.type()); + e.set_starttime(_shared_gc_info.start_timestamp()); + e.set_endtime(_shared_gc_info.end_timestamp()); + e.commit(); + } +} + +void G1NewTracer::send_evacuation_info_event(G1EvacuationInfo* info) { + EventEvacuationInformation e; + if (e.should_commit()) { + e.set_gcId(GCId::current()); + e.set_cSetRegions(info->collectionset_regions()); + e.set_cSetUsedBefore(info->collectionset_used_before()); + e.set_cSetUsedAfter(info->collectionset_used_after()); + e.set_allocationRegions(info->allocation_regions()); + e.set_allocationRegionsUsedBefore(info->alloc_regions_used_before()); + e.set_allocationRegionsUsedAfter(info->alloc_regions_used_before() + info->bytes_copied()); + e.set_bytesCopied(info->bytes_copied()); + e.set_regionsFreed(info->regions_freed()); + e.commit(); + } +} + +void G1NewTracer::send_evacuation_failed_event(const EvacuationFailedInfo& ef_info) const { + EventEvacuationFailed e; + if (e.should_commit()) { + // Create JFR structured failure data + JfrStructCopyFailed evac_failed; + evac_failed.set_objectCount(ef_info.failed_count()); + evac_failed.set_firstSize(ef_info.first_size()); + evac_failed.set_smallestSize(ef_info.smallest_size()); + evac_failed.set_totalSize(ef_info.total_size()); + // Add to the event + e.set_gcId(GCId::current()); + e.set_evacuationFailed(evac_failed); + e.commit(); + } +} + +static JfrStructG1EvacuationStatistics +create_g1_evacstats(unsigned gcid, const G1EvacSummary& summary) { + JfrStructG1EvacuationStatistics s; + s.set_gcId(gcid); + s.set_allocated(summary.allocated() * HeapWordSize); + s.set_wasted(summary.wasted() * HeapWordSize); + s.set_used(summary.used() * HeapWordSize); + s.set_undoWaste(summary.undo_wasted() * HeapWordSize); + s.set_regionEndWaste(summary.region_end_waste() * HeapWordSize); + s.set_regionsRefilled(summary.regions_filled()); + s.set_directAllocated(summary.direct_allocated() * HeapWordSize); + s.set_failureUsed(summary.failure_used() * HeapWordSize); + s.set_failureWaste(summary.failure_waste() * HeapWordSize); + return s; +} + +void G1NewTracer::send_young_evacuation_statistics(const G1EvacSummary& summary) const { + EventG1EvacuationYoungStatistics surv_evt; + if (surv_evt.should_commit()) { + surv_evt.set_statistics(create_g1_evacstats(GCId::current(), summary)); + surv_evt.commit(); + } +} + +void G1NewTracer::send_old_evacuation_statistics(const G1EvacSummary& summary) const { + EventG1EvacuationOldStatistics old_evt; + if (old_evt.should_commit()) { + old_evt.set_statistics(create_g1_evacstats(GCId::current(), summary)); + old_evt.commit(); + } +} + +void G1NewTracer::send_basic_ihop_statistics(size_t threshold, + size_t target_occupancy, + size_t current_occupancy, + size_t last_allocation_size, + double last_allocation_duration, + double last_marking_length) { + EventG1BasicIHOP evt; + if (evt.should_commit()) { + evt.set_gcId(GCId::current()); + evt.set_threshold(threshold); + evt.set_targetOccupancy(target_occupancy); + evt.set_thresholdPercentage(target_occupancy > 0 ? ((double)threshold / target_occupancy) : 0.0); + evt.set_currentOccupancy(current_occupancy); + evt.set_recentMutatorAllocationSize(last_allocation_size); + evt.set_recentMutatorDuration(last_allocation_duration * MILLIUNITS); + evt.set_recentAllocationRate(last_allocation_duration != 0.0 ? last_allocation_size / last_allocation_duration : 0.0); + evt.set_lastMarkingDuration(last_marking_length * MILLIUNITS); + evt.commit(); + } +} + +void G1NewTracer::send_adaptive_ihop_statistics(size_t threshold, + size_t internal_target_occupancy, + size_t current_occupancy, + size_t additional_buffer_size, + double predicted_allocation_rate, + double predicted_marking_length, + bool prediction_active) { + EventG1AdaptiveIHOP evt; + if (evt.should_commit()) { + evt.set_gcId(GCId::current()); + evt.set_threshold(threshold); + evt.set_thresholdPercentage(internal_target_occupancy > 0 ? ((double)threshold / internal_target_occupancy) : 0.0); + evt.set_ihopTargetOccupancy(internal_target_occupancy); + evt.set_currentOccupancy(current_occupancy); + evt.set_additionalBufferSize(additional_buffer_size); + evt.set_predictedAllocationRate(predicted_allocation_rate); + evt.set_predictedMarkingDuration(predicted_marking_length * MILLIUNITS); + evt.set_predictionActive(prediction_active); + evt.commit(); + } +} + +void G1OldTracer::report_gc_start_impl(GCCause::Cause cause, const Ticks& timestamp) { + _shared_gc_info.set_start_timestamp(timestamp); +} + +void G1OldTracer::set_gc_cause(GCCause::Cause cause) { + _shared_gc_info.set_cause(cause); +} + +void G1MMUTracer::report_mmu(double time_slice_sec, double gc_time_sec, double max_time_sec) { + send_g1_mmu_event(time_slice_sec * MILLIUNITS, + gc_time_sec * MILLIUNITS, + max_time_sec * MILLIUNITS); +} + +void G1MMUTracer::send_g1_mmu_event(double time_slice_ms, double gc_time_ms, double max_time_ms) { + EventG1MMU e; + if (e.should_commit()) { + e.set_gcId(GCId::current()); + e.set_timeSlice(time_slice_ms); + e.set_gcTime(gc_time_ms); + e.set_pauseTarget(max_time_ms); + e.commit(); + } +}