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A Significant Linux 4.7 Kernel Performance Regression Has Now Been Resolved

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  • A Significant Linux 4.7 Kernel Performance Regression Has Now Been Resolved

    Phoronix: A Significant Linux 4.7 Kernel Performance Regression Has Now Been Resolved

    There was a 30~40% drop in some of the SPEC Java benchmarks when using the Linux 4.7 development code, but fortunately this regression has now been discovered and addressed...

    Phoronix, Linux Hardware Reviews, Linux hardware benchmarks, Linux server benchmarks, Linux benchmarking, Desktop Linux, Linux performance, Open Source graphics, Linux How To, Ubuntu benchmarks, Ubuntu hardware, Phoronix Test Suite

  • #2
    Any chance that your benchmarks Michael could have helped identify the performance regression? If not, why not?

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    • #3
      Originally posted by pierce View Post
      Any chance that your benchmarks Michael could have helped identify the performance regression? If not, why not?
      It seems to be mostly specific to the SPEC Java tests. Unfortunately, last check, the SPEC tests were still rather strict about things that I don't support them in PTS aside from SPECViewPerf.
      Michael Larabel
      https://www.michaellarabel.com/

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      • #4
        Originally posted by Michael View Post

        It seems to be mostly specific to the SPEC Java tests. Unfortunately, last check, the SPEC tests were still rather strict about things that I don't support them in PTS aside from SPECViewPerf.
        And part of the discussion thread emphazises that these tests are horribly written: https://lkml.org/lkml/2016/6/22/133

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        • #5
          Did they fix the radeon performance regression also? Or was that just a broken powerplay thing?

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