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8373894: G1: Count evacuation-failed garbage collections in gc cpu usage

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Reviewed-by: iwalulya, kbarrett
This commit is contained in:
Thomas Schatzl 2026-01-20 08:01:54 +00:00
parent e45f5656bc
commit d9db4fb36e
3 changed files with 9 additions and 13 deletions
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11
src/hotspot/share/gc/g1/g1Policy.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2001, 2025, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2001, 2026, 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
@ -943,7 +943,7 @@ void G1Policy::record_young_collection_end(bool concurrent_operation_is_full_mar
phase_times()->sum_thread_work_items(G1GCPhaseTimes::MergePSS, G1GCPhaseTimes::MergePSSToYoungGenCards));
}
record_pause(this_pause, start_time_sec, end_time_sec, allocation_failure);
record_pause(this_pause, start_time_sec, end_time_sec);
if (G1GCPauseTypeHelper::is_last_young_pause(this_pause)) {
assert(!G1GCPauseTypeHelper::is_concurrent_start_pause(this_pause),
@ -1389,16 +1389,13 @@ void G1Policy::update_gc_pause_time_ratios(G1GCPauseType gc_type, double start_t
void G1Policy::record_pause(G1GCPauseType gc_type,
double start,
double end,
bool allocation_failure) {
double end) {
// Manage the MMU tracker. For some reason it ignores Full GCs.
if (gc_type != G1GCPauseType::FullGC) {
_mmu_tracker->add_pause(start, end);
}
if (!allocation_failure) {
update_gc_pause_time_ratios(gc_type, start, end);
}
update_gc_pause_time_ratios(gc_type, start, end);
update_time_to_mixed_tracking(gc_type, start, end);

5
src/hotspot/share/gc/g1/g1Policy.hpp
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2016, 2025, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2016, 2026, 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
@ -275,8 +275,7 @@ private:
// Record the given STW pause with the given start and end times (in s).
void record_pause(G1GCPauseType gc_type,
double start,
double end,
bool allocation_failure = false);
double end);
void update_gc_pause_time_ratios(G1GCPauseType gc_type, double start_sec, double end_sec);

6
test/hotspot/jtreg/gc/stress/TestMultiThreadStressRSet.java
View File

@ -44,15 +44,15 @@ import jdk.test.lib.Utils;
* @build jdk.test.whitebox.WhiteBox
* @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
* -XX:+UseG1GC -XX:G1SummarizeRSetStatsPeriod=1 -Xlog:gc
* -XX:+UseG1GC -XX:G1SummarizeRSetStatsPeriod=1 -Xlog:gc -XX:-UseGCOverheadLimit
* -Xmx500m -XX:G1HeapRegionSize=1m -XX:MaxGCPauseMillis=1000 gc.stress.TestMultiThreadStressRSet 10 4
*
* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
* -XX:+UseG1GC -XX:G1SummarizeRSetStatsPeriod=100 -Xlog:gc
* -XX:+UseG1GC -XX:G1SummarizeRSetStatsPeriod=100 -Xlog:gc -XX:-UseGCOverheadLimit
* -Xmx1G -XX:G1HeapRegionSize=8m -XX:MaxGCPauseMillis=1000 gc.stress.TestMultiThreadStressRSet 60 16
*
* @run main/othervm/timeout=1200 -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
* -XX:+UseG1GC -XX:G1SummarizeRSetStatsPeriod=100 -Xlog:gc
* -XX:+UseG1GC -XX:G1SummarizeRSetStatsPeriod=100 -Xlog:gc -XX:-UseGCOverheadLimit
* -Xmx500m -XX:G1HeapRegionSize=1m -XX:MaxGCPauseMillis=1000 gc.stress.TestMultiThreadStressRSet 600 32
*/
public class TestMultiThreadStressRSet {