do You consider implementing Garbage-First Garbage Collector http://www.oracle.com/technetwork/java/javase/tech/g1-intro-jsp-135488.html (adjusted to your JVM memory management specifics) into Your JDK7?
TrentGray-Donald 060001S2PQ2 Posts
Re: Garbage-First Garbage Collector?2010-12-09T16:49:23ZThis is the accepted answer. This is the accepted answer.Thanks for the question.
IBM is investing heavily in improving the memory management / GC capabilities in our JVM and while we will not be providing G1, we are continuing to improve the IBM J9 garbage collection technology in substantial ways. We look forward to showing some of those results in future beta releases.
PetrH 0600015T032 Posts
Re: Garbage-First Garbage Collector?2011-09-21T23:01:55ZThis is the accepted answer. This is the accepted answer.
- TrentGray-Donald 060001S2PQ
I noticed that there's a new balanced GC policy available that (at least on the first look) comes pretty close to the G1GC. So going to check this one out a bit soon ...
Also, I noticed ( http://www.ibm.com/developerworks/websphere/techjournal/1108_sciampacone/1108_sciampacone.html ) that it's even available in WAS 8.0 which is Java 6.0 based. However when I looked into the 6.0 diagnostics guide I couldn't find anything related.
Is it WAS 8.0 thing only and thus not going to be available in Your "generic" Java 6.0 releases, or is there any chance to see it there as well?
ChrisBailey 120000HUQM1 Post
Re: Garbage-First Garbage Collector?2011-12-19T11:36:59ZThis is the accepted answer. This is the accepted answer.
- indean 0100003EAG
Unfortunately not, the -Xgcpolicy:balanced option is only available in WebSphere Application Server v8 and Java 7.
Dependent on what your application is, we've seen (very) good results in Java 6/WAS v7 running -Xgcpolicy:gencon for large Java heaps.