Re: Deployed app performance degrades over time
Re: Deployed app performance degrades over time
- Subject: Re: Deployed app performance degrades over time
- From: Guido Neitzer <email@hidden>
- Date: Sat, 27 Sep 2008 23:12:24 -0600
On 27-Sep-08, at 7:54 PM, William Hatch wrote:
We've looked extensively at the db logs; no slow queries are being
triggered, in fact, the total queries per second drops to almost
nothing when the app is running slowly.
Did you also check the query logging in the application?
I haven't tried closing and reopening, other than bringing the app
up and down, of course. Do you think that would provide some
benefit? I suppose I could do it on each batch iteration.
It won't bring you any benefit if everything goes right there, but it
might point out a direction where to look.
Also memory could be a problem. The Garbage Collector could be
overwhelmed if you create and dispose a lot of objects (maybe even
more unnecessary objects for temporary things or so).
Shark or JProfiler might give clues here.
cug
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