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  1. JDK
  2. JDK-6526682

JConsole shows negative CPU Usage

    Details

    • Subcomponent:
    • Resolved In Build:
      b94
    • CPU:
      x86
    • OS:
      linux_2.6, windows_xp

      Description

      While monitoring of CPU Usage jconsole shows negtive CPU Usage.

      .csv file and screenshot of such situation are atteched.

      How to reproduce:

      Start jconsole and attach it to any process(Java2D demo in my case).
      Negative cpu usage will be shown on cpu usage monitor afrter some monitoring time.

      My Machine:
      Processor: Intel(R) Pentium(R) D CPU 3.20GHz x2
      OS: Gentoo Linux

      On slow machines like P-III(~800 MHz) cpu monotor shows correct values.

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              • Assignee:
                nloodin Nils Loodin (Inactive)
                Reporter:
                imikhailsunw Igor Mikhailuk (Inactive)
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                • Created:
                  Updated:
                  Resolved:
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