Suggested defaults for Metasize and Java 8 ------------------------------------------ Key: WFLY-6046 URL: https://issues.jboss.org/browse/WFLY-6046 Project: WildFly Issue Type: Enhancement Reporter: Ken Wills Assignee: Ken Wills Since PermGen is no longer used, and has been replaced by Metasize, we probably need to alter the initial startup values. Current WF is using: -XX:MaxMetaspaceSize=256m After some testing with garbage collection logging on (-verbose:gc -Xloggc:hcgc.log -XX:+PrintGCDateStamps -XX:MetaspaceSize=XX), the GC logs were monitored for at least one occurrence of a full GC due to Metadata threshold (example [Full GC (Metadata GC Threshold) 39592K->20187K). Using this information, minimum levels of Metasize for various configurations were determined.