Reset memory profiling on remote server

Questions about YourKit Java Profiler
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christian
Posts: 1
Joined: Wed Nov 12, 2014 6:41 am

Reset memory profiling on remote server

Post by christian »

Hi there,

I'm trying to make a memory profile of a few batches on a remote WebSphere Server.
The way im doing it is starting the yourkit client on my desktop, then I connect to WebSphere
and it automatically starts profiling and never stops. Another point is that the profile is only about
an hour - I think i can only change that via the startup option "telemetrylimit=<hours>" ? Is it possible to change that
when the server is already running or do I have to restart it and integrate the yjp.jar again?

best regards,
Christian
Anton Katilin
Posts: 6172
Joined: Wed Aug 11, 2004 8:37 am

Re: Reset memory profiling on remote server

Post by Anton Katilin »

Hello Christian
The way im doing it is starting the yourkit client on my desktop, then I connect to WebSphere
and it automatically starts profiling and never stops.
Could you please clarify what kind of profiling starts. Do you mean the telemetry graphs being updated? Yes, they are always available, but their overhead is negligible if you use the J2EE server integration wizard's recommended startup options which disable those particular telemetries that may cause a noticeable overhead (stack telemetry, exception telemetry).
Another point is that the profile is only about
an hour - I think i can only change that via the startup option "telemetrylimit=<hours>" ? Is it possible to change that
when the server is already running or do I have to restart it and integrate the yjp.jar again?
This startup option cannot be altered in runtime, so you have to re-integrate with the server with appropriate "telemetrylimit" and then restart it.

Best regards,
Anton
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