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Intel FSGSBASE Linux Support Revived For A Performance Boost On Intel/AMD Processors

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  • Intel FSGSBASE Linux Support Revived For A Performance Boost On Intel/AMD Processors

    Phoronix: Intel FSGSBASE Linux Support Revived For A Performance Boost On Intel/AMD Processors

    Earlier this month I reported that Linux developers were reviving work on the Intel FSGSBASE patches as a performance helper going back to Ivy Bridge CPUs but for which past patch series never got over the finish line for mainlining. On Thursday a new version of the FSGSBASE patches were sent out...

    http://www.phoronix.com/scan.php?pag...BASE-Linux-5.7

  • #2
    "a third party"

    Around here, we name names!! #TeamPhoronix

    Side note- patches cleanly on kernel 5.6.7 as well. Compiling at the moment.

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    • #3
      Originally posted by perpetually high View Post
      Side note- patches cleanly on kernel 5.6.7 as well. Compiling at the moment.
      Huh. I wouldn't mind trying them (and may pull a branch, just to see) but didn't Linus rage on Intel's previous attempts at these (with almost his usual, pre-neutering fire) because of how badly they were implemented?

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      • #4
        Probably not without introducing a whole slew of nice side effects (security).

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        • #5
          Trying them out now, so far, so good. Is there any test-case that could be used to test them for breakage? FWIW VMWare is running just fine.

          I run "mitigations=off" as a matter of course, so I can't exactly say I can feel any seat-of-the-pants speed improvements, but I haven't run my usual daily workloads yet.

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