Celebrating a Free JRockit

Community feedback on the JRockit is Free blog post has been overwhelming. We thought that interest would be limited after the years as an Oracle-only product, but we were happily mistaken.

Among the reaction, almost 400 tweets at last count. News coverage in numerous online publications and communities. Several follow-up blogs. One of my favorites is http://blog.eisele.net/2011/05/jrockit-is-now-free-period.html

"Wow .. man, this is great news in general: I personally love the JRMC. It's the most complete and ootb solution for getting your JVM under control. Nothing against VisualVM or even the JConsole, but ... JRMC plays in a league of it's own."

Finally, the publisher of the JRockit Definitive Guide added to the fun by announcing a celebratory discount. So now there's no excuse not to learn about JRockit and by extension what will be available in OpenJDK as our JVM convergence project ...erm... rockets ahead!

(Disclaimer: I have no financial interest in the book. But I like it.)

Comments:

Yes, sure, the Definitive Guide cover lots of topic especially code optimization. I love it. /David

Posted by DaVID on May 28, 2011 at 01:18 AM PDT #

real time free?

Posted by guest on August 03, 2011 at 10:43 PM PDT #

* So I read the Definitive Guide. Its not clear to me if on x86_64, method profiling is done using Thread Sampling or Invocation Counters on method entrances and backedges. Do we know which it is?

* I ask because I took JRMC for a ride i.e., did a Start Flight Recording (Profiling Normal)and later looking at the results under Code->HotMethods, the Sample Count values seem extremely low for a 2 minute run.

Posted by guest on June 23, 2012 at 02:09 PM PDT #

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