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I have refactored and tuned my java application.

I now want to compare the performance of newer and older version of the application , in terms of their individual CPU and heap memory usage.

I am using VisualVM and JDK 1.7. I run them individually and monitor them using VisualVM. At the end all i have is two sets of graphs. This makes deciding which one is better difficult.

Is there a metric that VisualVm provides , which can make deciding which version performs better easier. ?.

Something like Average CPU used or Average Heap Used (if that is an accurate way of measuring performance) Thanks !!

davison
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1 Answers1

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The Platform MBeans provide access to the CPU, memory and Garbage Collection data, so its possible to collect data from there and run statistical analysis against it:

CPU and Memory: http://docs.oracle.com/javase/7/docs/jre/api/management/extension/com/sun/management/OperatingSystemMXBean.html

Garbage Collection: http://docs.oracle.com/javase/7/docs/jre/api/management/extension/com/sun/management/GarbageCollectorMXBean.html

Chris Bailey
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