[jboss-user] [Performance Tuning] New message: "Re: 5.1.0.GA considerably slower than 4.0.3RC2! Up to 200%"

[Peter Johnson]

User development,

A new message was posted in the thread "5.1.0.GA considerably slower than 4.0.3RC2! Up to 200%":

http://community.jboss.org/message/526384#526384

Author  : Peter Johnson
Profile : http://community.jboss.org/people/peterj

Message:
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Beware of microbenchmarks, like the one you have written. There are way too many factors that can throw the results off, including which garbage collector you are using, the heap size, which JDK you are using, and the list goes on.
 
The only valid way to determine performance difference between the two app servers is to make sure you configure them the same, use the same JDK with the same JVM options, deploy the exact same app to them, and then use a load testing tool such as JMeter and run a test that takes at least 15 minutes to run. Then look at the response times.

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