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frankitox 2019-10-16T16:34:45.001700Z
Hello! I was looking at the logs of a web server when I found:
OpenJDK 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release
-server
-Xms5G
-Xmx5G
-XX:+DoEscapeAnalysis
-XX:+UseParNewGC
-XX:+UseConcMarkSweepGC
-XX:+CMSConcurrentMTEnabled
-XX:+CMSIncrementalMode
-XX:MaxNewSize=257m
-XX:NewSize=256m
-XX:+UseTLAB
-XX:MaxTenuringThreshold=0
+CMSIncrementalMode flag? And if it is actually doing something?frankitox 2019-10-16T23:15:05.003800Z
From a couple of articles it seems java is dropping support for the Concurrent Mark Sweep Garbage Collector, they will focus on G1. Since latest Clojure still supports java 8 I'm not tweaking those settings yet. - Why CMS Garbage Collector deprecating: https://www.linkedin.com/pulse/jvm-why-cms-garbage-collector-deprecating-kunal-saxena/ - Info about different garbage collectors: https://www.baeldung.com/jvm-garbage-collectors