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[jdt-dev] Performance degradation switching from 1.8 to 11
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Greetings JDT Developers,
We are seeing a severe performance degradation with Eclipse switching a large code base from 1.8 to 11. It's noticeable across our entire Eclipse use base. Increasing Eclipse JVM heap to 32GB on desktops with >= 64GB memory does not improve the situation.
We are currently running Eclipse with OpenJDK 1.8.0_212 and the following additional options:
-Xverify:none
-XX:+UseStringDeduplication
-XX:+DisableExplicitGC
-XX:+ParallelRefProcEnabled
-Dorg.eclipse.jdt.core.javamodelcache.ratio=1.5
-Dorg.eclipse.jdt.core.javamodelcache.jartyperatio=4
I've created https://bugs.eclipse.org/566498 for sharing logs and profiling results. I'd appreciate your input on thing to try and/or data you would like us to collect.
Please let me know if you prefer communication on the bug of on the mailing list.
Thanks a lot!
-Gunnar
--
Gunnar Wagenknecht
gunnar@xxxxxxxxxxxxxxx, http://guw.io/
