[JBoss JIRA] (WFLY-4681) Reevaluation of java memory settings
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[
https://issues.jboss.org/browse/WFLY-4681?page=com.atlassian.jira.plugin....
]
Tomaz Cerar commented on WFLY-4681:
-----------------------------------
{quote}
Compressed references are enabled by default on all platforms when the value of the -Xmx
option is less than or equal to 25 GB.
{quote}
So IBM JDK has it similarly enabled by default as in Oracle JDK.
Which means we don't need to worry about it in our default jvm options.
Reevaluation of java memory settings
------------------------------------
Key: WFLY-4681
URL: https://issues.jboss.org/browse/WFLY-4681
Project: WildFly
Issue Type: Bug
Components: Server
Affects Versions: 10.0.0.Alpha1
Reporter: Marek Kopecký
Assignee: Andrig Miller
Based on [~ctomc]'s comment in https://issues.jboss.org/browse/JBEAP-149,
perf team should do some testing and suggest best values for java memory settings in
WildFly (-Xms, -Xmx, ...). This settings need to be completely reevaluated as EAP7 moved
to JDK8 as requirement.
JDK8 doesn't have PermGen space anymore but metaspace, this completely changes how
memory settings need to be tuned.
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Tomaz Cerar (JIRA)