| /* |
| * 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/g1HeapRegionTraceType.hpp" |
| #include "gc/g1/g1Trace.hpp" |
| #include "gc/g1/g1YCTypes.hpp" |
| #include "gc/shared/gcHeapSummary.hpp" |
| #include "jfr/jfrEvents.hpp" |
| #if INCLUDE_JFR |
| #include "jfr/metadata/jfrSerializer.hpp" |
| #endif |
| |
| #if INCLUDE_JFR |
| class G1HeapRegionTypeConstant : public JfrSerializer { |
| public: |
| void serialize(JfrCheckpointWriter& writer) { |
| static const u4 nof_entries = G1HeapRegionTraceType::G1HeapRegionTypeEndSentinel; |
| writer.write_count(nof_entries); |
| for (u4 i = 0; i < nof_entries; ++i) { |
| writer.write_key(i); |
| writer.write(G1HeapRegionTraceType::to_string((G1HeapRegionTraceType::Type)i)); |
| } |
| } |
| }; |
| |
| class G1YCTypeConstant : public JfrSerializer { |
| public: |
| void serialize(JfrCheckpointWriter& writer) { |
| static const u4 nof_entries = G1YCTypeEndSentinel; |
| writer.write_count(nof_entries); |
| for (u4 i = 0; i < nof_entries; ++i) { |
| writer.write_key(i); |
| writer.write(G1YCTypeHelper::to_string((G1YCType)i)); |
| } |
| } |
| }; |
| |
| static void register_jfr_type_constants() { |
| JfrSerializer::register_serializer(TYPE_G1HEAPREGIONTYPE, true, |
| new G1HeapRegionTypeConstant()); |
| |
| JfrSerializer::register_serializer(TYPE_G1YCTYPE, true, |
| new G1YCTypeConstant()); |
| } |
| |
| #endif |
| |
| void G1NewTracer::initialize() { |
| JFR_ONLY(register_jfr_type_constants()); |
| } |
| |
| 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(); |
| } |
| } |