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List:       jboss-user
Subject:    RE: [JBoss-user] JVM options for hardhit jboss-tomcat deployment
From:       "Elankath, Tarun (Cognizant)" <ETarun () blr ! cognizant ! com>
Date:       2003-08-30 11:28:12
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Hi Sheldon,

I am in the same predicament as you are. I need to prepare our app for a 1000 \
concurrent user stress test. I didn't bother with -Xss. I set -Xms to 256MB and -Xmx \
to 1024MB. (We have 2 Gig RAM.) 

I also increased the maxProcessors setting in \
JBOSS_HOME/server/default/deploy/jbossweb-tomcat.sar/META-INF/jboss-service.xml to \
1500 (the recommended is twice the actual expected load, but 2000 sounded too much to \
me) and the minProcessors to 100. I have compiled our application with debug off and \
optimize on. I am planning to compile jboss with the same settings too.

Hope that helps,
Tarun

-----Original Message-----
From: Sheldon Hearn [mailto:sheldonh@starjuice.net]
Sent: Saturday, August 30, 2003 4:31 AM
To: jboss-user@lists.sourceforge.net
Subject: [JBoss-user] JVM options for hardhit jboss-tomcat deployment


Hi folks,

I'm battling to find appropriate -Xss, -Xms and -Xmx values for the JVM
running a jboss-3.2.1-tomcat-4.1.24 deployment, the Coyote connector of
which needs to handle heavy access (at least 500 concurrent
connections).

Has anyone got any silver bullets for me?  I'm running on a FreeBSD box,
but I'm guessing options that work well on Linux would do.

Thanks,
Sheldon.


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