Performance problem before and after growing WOWorkerThreads number
Performance problem before and after growing WOWorkerThreads number
- Subject: Performance problem before and after growing WOWorkerThreads number
- From: Benoit Cantin <email@hidden>
- Date: Fri, 08 Jun 2007 20:24:18 +0200
Hi list,
On one of our apps, we have what I describe in the subject.
Application runs on xserve dual G5 and wo 5.3.3. Only one instance,
multithread disabled. Adaptor settings are given in the attachement
(sorry for this).
The workflow is the following : only 3 users connect to the webobjects
backend through one direct action. In this direct action, there is a
call to the the session().defaulteditingcontext() method initiating the
creation of a session. That is what I understand from the doc.
Now we come to about 250 sessions created, then log says :
[2007-06-08 19:54:00 CEST] <WorkerThread14>
<com.webobjects.appserver._private.WODefaultAdaptor>: Growing number of
WOWorkerThreads to 32
But just before and after, application becomes sloooooooow. It processes
one request a minute and then application becomes unreachable.
My question is : from where does this problem come from ? Can this be
from WODefaultAdaptor settings which I didn't modify ? sessions in
direct action ? Anything else.
Please let me know if you have ideas or wish any other info.
Thanks for your help.
--
Benoit Cantin
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