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  1. #1
    userj2ee is offline Member
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    May 2010
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    Question How to get a System's total CPU usage percentage using a java program


    I need to find the system's total CPU usage percentage ( as we see in Windows Task Manager) using a java program. I am able to find the CPU usage time for one process using the OperatingSystemMXBean API. But i am not able to find a way to find the CPU usage percentage for all the process running on a system.
    I cannut use any third party tools to acheive this. Are there any third party jars available which can help me in getting this data?


  2. #2
    toadaly is offline Senior Member
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    Jan 2009
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    There are tons of 3rd party system performance monitors available, such as PerfAnal, but if I were tasked with this problem, I'd write a dirt simple native app that just spits total cpu usage out to stdout, and then I'd exec it in java and read the results.

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