Recently we have upgraded to JAVA9 and decided to try G1GC algorithm. Then given load to the application and observed the behaviour of it 1) Full GC has not executed, even after consuming 80% of memory (under load) 2) Full GC (System.gc()) executed only in idle state but its dose when application in idle state
Here is my JVM config: -Xms1536m -Xmx1536m -XX:MaxMetaspaceSize=512m -XX:ReservedCodeCacheSize=128M -server -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/tmp -verbose:gc -XX:+PrintCodeCache -Dsun.rmi.dgc.client.gcInterval=600000 -Dsun.rmi.dgc.server.gcInterval=600000 -Djava.awt.headless=true -Xlog:gc*"
java -version
java version "9" Java(TM) SE Runtime Environment (build 9+181) Java HotSpot(TM) 64-Bit Server VM (build 9+181, mixed mode)
Why Full GC (System.gc()) not executed when the application is under load? Why Full GC has not executed, even after consuming 80% of memory?
Click here for Jboss_console.log
