[jdk17u-dev] RFR: 8279856: Parallel: Use PreservedMarks to record promotion-failed objects
Roman Kennke
rkennke at openjdk.org
Fri Nov 17 16:19:01 UTC 2023
This backports (JDK-8279856)[https://bugs.openjdk.org/browse/JDK-8279856] to jdk17u. The change fixes a considerable performance problem in Parallel GC. The original change has baked in mainline since JDK19 and has not accrued any bug-tail, yet.
Testing:
- [x] hotspot_gc
- [x] tier1 (+UseParallelGC)
- [x] tier2 (+UseParallelGC)
- [x] tier3 (+UseParallelGC)
- [ ] tier4 (+UseParallelGC)
-------------
Commit messages:
- Backport 16ec47d5e5bf129fc0910358464ab62bf6ce7ed8
Changes: https://git.openjdk.org/jdk17u-dev/pull/1964/files
Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1964&range=00
Issue: https://bugs.openjdk.org/browse/JDK-8279856
Stats: 24 lines in 5 files changed: 12 ins; 8 del; 4 mod
Patch: https://git.openjdk.org/jdk17u-dev/pull/1964.diff
Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/1964/head:pull/1964
PR: https://git.openjdk.org/jdk17u-dev/pull/1964
More information about the jdk-updates-dev
mailing list