I have finally found time to write a small tool which can help profiling Java applications.
Its name is threadTop and it connects to your application via JMX.
It can measure
- thread contention
- thread CPU usage
I think it can be very useful when combined with jstack.
Waiting for your feedback :
4 comments:
I made a similar thing a few months ago: https://bitbucket.org/sindrit/jtop
Although mine is quite primitive and has no real options, just spits out a list of threads ordered by CPU usage. It did help resolve the issue I was having at the time though.
Two people having the same idea means it's a good one right?
Sindri,I agree. It makes sense to have such a tool. Note that the tool I wrote can also collect thread contention.
I also plan to integrate it into VisualVM when I will have time.....
Added ability to connect via attach API to a pid directly
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