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merging snapshots

Moderators: Vladimir Kondratyev, Anton Katilin

merging snapshots

Postby yshavit » Wed Jan 27, 2016 1:17 am

If I have lots of fairly short-lived snapshots (from MapReduce jobs, which can spawn off lots of JVMs for each step), is there a way to merge them into a single view?

I'm not even sure if such a thing would be useful -- my hope would be that even though each run is relatively short and thus has a higher margin of error, in aggregate they'd average out and start to paint an accurate picture of the app's performance.
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Re: merging snapshots

Postby Anton Katilin » Wed Jan 27, 2016 11:12 am

You cannot merge snapshots this way. Are you interested in CPU profiling results (sampling or tracing)?

As a workaround please consider export of the profiling results to external format for further processing:
https://www.yourkit.com/docs/java/help/export.jsp

You may write a script running the export for all snapshots and then somehow processing the results in an automated fashion.
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Re: merging snapshots

Postby yshavit » Wed Jan 27, 2016 1:59 pm

Yes, I was primarily interested in the profiling results. That export sounds like it would do the trick, thanks!
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