JRockit on Solaris

While JRockit is generally the preferred JDK for WebLogic Server, I ran across an environment that had poor performance for no discernible reason recently. I could make this post long by boring you with the details of how I decided to try switching to the Sun JDK, but instead I will just mention that it was WLS 10.3.4 on Solaris 10U6 with JRockit 6U28 and that switch to Sun JDK 6U24 resulted in a significant improvement.


There may be other factors involved in this (I have requested that a Solaris SME look at the environment), but wanted to add this as a debugging option for those who may run into a similar issue where none of the usual suspects of poor performance are present and it happens to be JRockit on Solaris. 


As someone commented, I did leave out the hardware, which was SPARC.

Comments:

You don't mention which hardware platform you are using but my understanding is that the Sun HotSpot JVM is best for SPARC platforms while Jrockit is best for X86 platforms.

With JVM 7 Oracle is merging the two per: https://blogs.oracle.com/henrik/entry/java_7_questions_answers

Posted by Jim Laurent on March 02, 2012 at 08:41 AM EST #

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