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  1. JDK
  2. JDK-4895978

High CPU utilization with Matrox graphic adapters and Multiple Display

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    • 02
    • generic, x86
    • windows_2000

        We have a customer application which when invoked with 1.4.2 show high
        CPU utilization. The utilization range upto 80% at times and has an average
        of 38%.

        Some basic profiling made with Optimizeit shows Java 2D method like
        sun.java2d.pipe.DrawImage.blitSurfaceData consuming high CPU (37.9%).

        The problem was reproduced in-house with the following configuration:

        Pentium 4 2.8 GHz
        1 GB RAM
        Windows 2000 SP2
        Matrox G200 Adapter
        3 Display Monitors

        The steps to download, configure and run the test case is provided in the comments section.



              svioletsunw Scott Violet (Inactive)
              gnagasunsunw Gopinath Nagasundara (Inactive)
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