[Bug 98693] Mad Max: Long lags when VRAM full

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98693

            Bug ID: 98693
           Summary: Mad Max: Long lags when VRAM full
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r600
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: jani.karkkainen at gmail.com
        QA Contact: dri-devel at lists.freedesktop.org

I get random lagging when playing the recently released Mad Max. Every once in
a while, the game freezes completely, and gets back to the game after an
arbitrary amount of seconds, anywhere from 2 to 35. 

With GALLIUM_HUD, and noticed that the lags appear to precede the VRAM slowly
ramping up to full, and then I get this huge lag, and then VRAM usage is a lot
lower (eg. from 1GB to ~600MB).

I found this possibly related news item from a couple of months back:
https://www.gamingonlinux.com/articles/a-reason-for-poor-performance-on-amd-plus-mesa-has-been-found-and-a-patch-is-in-progress.7873

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