Integrating JBossProfiler with Testsuite Runs

[ryan.campbell]

What would be the impact/value of running the JBossProfiler memory profiler with the nightly testsuite runs? Mostly, I think it might be useful for tracking down/monitoring memory leaks.

1. run each server config with the profiler enabled
2. call the profiler jmx ops in the server tasks or elsewhere
3. put a profiler webapp instance on cruisecontrol.jboss.com

Will this affect the validity of our tests? Would it be useful for tracking down memory leaks?

[clebert.suconic]

Extracting a memory snapshot is pretty fast (probably 5 seconds) even to a large memory.

Probably analyzing the files will take some time at the first time, because I need to sort the files using plain old quick sort, what will take some time. I have tried using a database and we got even slower responses I perform a single query for each object selected. The best algorithm I found was using a sorted file.


So, the only thing is, you will have to select some spots to extract the memory snapshots.

[ryan.campbell]

The analysis takes place on in webapp, no? So this won't impact the testsuite.

I think by default we will just extract the memory snapshots at the end of each server run, as a part of the server:stop functionality.

http://jira.jboss.com/jira/browse/JBQA-206

[clebert.suconic]

Yes.. the analysis will take place in the webapp.

Anyway, as the profiler is dependent on a native DLL, we will have to make this an optional feature on the testsuite.

And also, remember that JVMTI (the library I used to capture the memory snapshots) is only available at Java5.