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dragonwell-project / dragonwell11

Alibaba Dragonwell11 JDK
https://www.aliyun.com/product/dragonwell
GNU General Public License v2.0
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[Backport] 8319650: Improve heap dump performance with class metadata caching #717

Open y1yang0 opened 10 months ago

y1yang0 commented 10 months ago

Heap dumping performance is something our users frequently complain about. Modern JDKs already implement parallel heap dumps from diagnostic commands, which is nice. But there are single-threaded improvements that we can easily do.

See https://bugs.openjdk.org/browse/JDK-8319650 for more details.