Reference chains for surviving live-heap samples via a bounded manual heap walk (PROF-15341) - #644

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jbachorik wants to merge 29 commits into

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jb/reference-chains

Commits on Aug 19, 2026

Add repro/sweep tooling and chaos-harness build wiring for reference chains

jbachorik
and
claude
committed
5935c5c
Implement reference chains for surviving live-heap samples

jbachorik
and
claude
committed
dc8071d
Add C++ unit tests for reference-chain tracking

jbachorik
and
claude
committed
1a3165d
Add Java integration tests and chaos/repro harness for reference chains

jbachorik
and
claude
committed
6f1fd14
Add reference-chains architecture and design docs

jbachorik
and
claude
committed
4993cb6
Address reference-chains review findings

jbachorik
and
claude
committed
ee58647
Migrate ReferenceChainTrackingTest to the JfrEvents API

jbachorik
and
claude
committed
3540b64
Address reference-chains review findings

jbachorik
and
claude
committed
f6e57d6
Add heap-wide time-to-OOM predictor to fast-path leak detection

jbachorik
and
claude
committed
5adb328
Add debug seams and test for reference-chain OOM-bypass gate

jbachorik
and
claude
committed
321ed23
Fix AggressiveLeakReferenceChainTest race with real GC heap-floor samples
jbachorik
committed
21f256e
Fix non-atomic cross-thread writes in AggressiveLeak test seams
jbachorik
committed
628db7f
Add backward-compatible setContextValue(int, CharSequence) overload
jbachorik
committed
84c703b
Remove backward-compatible setContextValue(int, CharSequence) overload
jbachorik
committed
d8243f4
Reset pain budget in resetSearchStateForTest to fix musl CI failures
jbachorik
committed
5fd5318
Auto-tune reference chain defaults based on heap size and CPU count
jbachorik
committed
facdc70
Replace TTL with progress-based termination + urgency-driven budget escalation
jbachorik
committed
8e44ff2
Add reference chain canary search design doc
jbachorik
committed
1f25f8a
Revert "Add reference chain canary search design doc"
jbachorik
committed
3777ae1
Implement canary search: pruned BFS from GC roots to leaked candidates
jbachorik
committed
1d6a65d
Remove planning doc from tracked files
jbachorik
committed
c1c08f1
Run passes back-to-back; frontier cap as memory bound only
jbachorik
committed
e7cf195
Remove planning doc from tracked files
jbachorik
committed
7e5c97d
Fix canary chain reconstruction: frontier table lookup rejects negative tags
jbachorik
committed
f745651
Add canary search counters: candidate_count and candidates_found
jbachorik
committed
b5dc65f
Fix JavaProfiler.java merge conflict resolution
jbachorik
committed
19b431e
Fix canary pruning: check marker tag before class-tag check
jbachorik
committed
78c2aad
Fix canary chain: store candidate's own klass, not referrer's klass
jbachorik
committed
eac95a6
Fix canary pruning: handle root-referenced candidates
jbachorik
committed
6be9f56

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Reference chains for surviving live-heap samples via a bounded manual heap walk (PROF-15341) - #644

Reference chains for surviving live-heap samples via a bounded manual heap walk (PROF-15341)#644
jbachorik wants to merge 29 commits into
mainfrom
jb/reference-chains

Commits on Aug 19, 2026

Add repro/sweep tooling and chaos-harness build wiring for reference chains

Implement reference chains for surviving live-heap samples

Add C++ unit tests for reference-chain tracking

Add Java integration tests and chaos/repro harness for reference chains

Add reference-chains architecture and design docs

Address reference-chains review findings

Migrate ReferenceChainTrackingTest to the JfrEvents API

Address reference-chains review findings

Add heap-wide time-to-OOM predictor to fast-path leak detection

Add debug seams and test for reference-chain OOM-bypass gate

Fix AggressiveLeakReferenceChainTest race with real GC heap-floor samples

Fix non-atomic cross-thread writes in AggressiveLeak test seams

Add backward-compatible setContextValue(int, CharSequence) overload

Remove backward-compatible setContextValue(int, CharSequence) overload

Reset pain budget in resetSearchStateForTest to fix musl CI failures

Auto-tune reference chain defaults based on heap size and CPU count

Replace TTL with progress-based termination + urgency-driven budget escalation

Add reference chain canary search design doc

Revert "Add reference chain canary search design doc"

Implement canary search: pruned BFS from GC roots to leaked candidates

Remove planning doc from tracked files

Run passes back-to-back; frontier cap as memory bound only

Remove planning doc from tracked files

Fix canary chain reconstruction: frontier table lookup rejects negative tags

Add canary search counters: candidate_count and candidates_found

Fix JavaProfiler.java merge conflict resolution

Fix canary pruning: check marker tag before class-tag check

Fix canary chain: store candidate's own klass, not referrer's klass

Fix canary pruning: handle root-referenced candidates