--- /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();
+ }
+}