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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To reply to this message visit the message page: 
http://community.jboss.org/message/526384#526384


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