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JBoss Profiler 2.0

· Java Zone

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I recently got myself into a tough situation where I needed to do some memory profiling a web application. I had a custom written profiler which does ok on measuring the time consumption, but not the memory. Since most of the profilers are commercial, I tried out JBoss Profiler 2.0, Wow! I have never seen a profiler work in just 3-4 steps. If you don't believe me, try it yourself:

Steps:
1.Download JBoss Profiler 2.0 - http://labs.jboss.com/jbossprofiler/downloads.html

2.Copy files to your JBoss,
  • jboss-profiler.jar -> jboss/bin
  • jboss-profiler.properties (Add packages to be instrumented in includes) -> jboss/bin
  • javassist.jar -> Jboss/bin
  • jboss-profiler.sar -> jbossas/server/(default)/deploy
3.Add the following to your run.conf or run.bat JAVA_OPTS,
-javaagent:jboss-profiler.jar -Djboss-profiler.properties=jboss-profiler.properties
4.Start the Server, Use the Client program to collect the statistics
java -Xmx512m -Djboss-profiler-client.properties=jboss-profiler-client.properties -jar jboss-profiler-client.jar -h(host) -P(port) snapshot

Reference:
1.An excellent User Guide comes with the download, it has everything you need to know.

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