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AMDGPU Submits LRU Bulk Moves Support As A Linux 5.4 "Fix" For Better Performance

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  • AMDGPU Submits LRU Bulk Moves Support As A Linux 5.4 "Fix" For Better Performance

    Phoronix: AMDGPU Submits LRU Bulk Moves Support As A Linux 5.4 "Fix" For Better Performance

    While initially queued as a work-in-progress feature for Linux 5.5, AMD has now submitted a batch of "fixes" to the current Linux 5.4 cycle that include enabling of the LRU bulk moves performance-boosting functionality...

    http://www.phoronix.com/scan.php?pag...-Moves-5.4-Fix

  • #2
    All of that does not patch cleanly into 5.2 even after removing all non-existent Navi specific stuff

    I figure that y'all figure that I'd try that

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    • #3
      Originally posted by skeevy420 View Post
      All of that does not patch cleanly into 5.2 even after removing all non-existent Navi specific stuff

      I figure that y'all figure that I'd try that
      What? It's a huge patchset, so don't expect it to work.

      I remember that during a time back in 2017 when I had to use AMDGPU-PRO to run my Vega card I used the DKMS module that came bundled with it, and it worked well for around a year.

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      • #4
        The reason i see for porting it to Linux 5.4 is that 5.4 will be an longterm supported kernel.

        Comment


        • #5
          Originally posted by tildearrow View Post

          What? It's a huge patchset, so don't expect it to work.

          I remember that during a time back in 2017 when I had to use AMDGPU-PRO to run my Vega card I used the DKMS module that came bundled with it, and it worked well for around a year.
          Neither did I. Granted that all I did was a squash to patch and ran with it.

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          • #6
            Looking at the never decreasing list of stability issues reported in the tracker I wonder how all those performance tweaks are supposed to be relevant at this time. In the part of the IT industry I am working in, no customer would accept anything nearly as unstable as the amdgpu driver, and at its current state, every man-hour invested would be on fixing it, rather than performance optimizations.

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            • #7
              5700XT, 5.4-r1

              Xort starts
              Games start. work fine in non fullscreen mode.

              Those fullscreen eith runtime hang and hang Xorg with it. Or hang on exit and hang Xorg with it.

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              • #8
                Originally posted by dwagner View Post
                Looking at the never decreasing list of stability issues reported in the tracker I wonder how all those performance tweaks are supposed to be relevant at this time. In the part of the IT industry I am working in, no customer would accept anything nearly as unstable as the amdgpu driver, and at its current state, every man-hour invested would be on fixing it, rather than performance optimizations.
                This. Stability is paramount, but apparently open-source developers don't think so.

                (Even stable versions aren't that stable)

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