Tomcat performance measurements...

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Hi All,

As I mentioned in my previous email I was able to get
my system performance using Apache-Tomcat-Jre1.6 such
that I was getting 4msec transaction response times.

My problem is I can not tell how much of that response
time is spent in tomcat versus Apache. I am using
windows 2000 where the configuration is Apache -
(Tomcat embedded in JBoss 4.2.1) using Mod_jk. The
problem I can measure the transaction in the servlet
which is in the sub-microsecond range but at apache
access logs or in the mod_jk logs I am seeing either 0
or 15msec. I suspect that is due to the timers used by
Apache.
I would like to know how long Tomcat is taking for the
request. I am using web services inside of Tomcat so
the request goes through that layer.

Also, can anyone tell me the performance differences
they have see when Tomcat is running on Linux versus
Windows? I have heard anything between 1 to 30%
improvment.

Also, any hints on how to improve Tomcat performance
appreciated.

Regards,
Tony


       
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