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Tool to check or optimize performance

 
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Is there any free tool to check performance?
Thanks,
Angela
 
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Try hprof. It is freely with jsdk. If you type java -Xrunhprof:help you will get a help screen on how to use.
I also recommend this link which gives some tutorial on how to use it:
<a href="http://developer.java.sun.com/developer/onlineTraining/Programming/JDCBook/perf3.html#profile<a href="http://developer.java.sun.com/developer/onlineTraining/Programming/JDCBook/perf3.html#profile" target="_blank" rel="nofollow">Advanced" target="_blank">http://developer.java.sun.com/developer/onlineTraining/Programming/JDCBook/perf3.html#profile[URL=http://developer.java.sun.com/developer/onlineTraining/Programming/JDCBook/perf3.html#profile]Advanced Programming for the JavaTM 2 Platform - Profiling
 
Angela D'souza
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Thanks. I will try.
Angela
 
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Try out JAMon. JAMon is free, fast, easy to use and comes with source code and javadocs:
http://www.jamonapi.com
A list of tools including JAMon are available at
http://www.javaperformancetuning.com/resources.shtml
Steve - http://www.jamonapi.com
 
Don't get me started about those stupid light bulbs.
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