[Bug 112124] Kingdom Come: Deliverance (DXVK) - kernel performance regression [Navi] [RADV/ACO]

[Bug 112124] Kingdom Come: Deliverance (DXVK) - kernel performance regression [Navi] [RADV/ACO]

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=112124

            Bug ID: 112124
           Summary: Kingdom Come: Deliverance (DXVK) - kernel performance
                    regression [Navi] [RADV/ACO]
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: not set
          Priority: not set
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: asheldon55@gmail.com

Kingdom Come: Deliverance (DXVK) has regressed in performance due to the
following kernel commit, with aco-navi:

commit 828d6fde7f574d74b0a6a591345d3c42b62d5e21
Author: Tianci.Yin <tianci.yin@amd.com>
Date:   Mon Aug 19 15:30:22 2019 +0800

    drm/amdgpu/psp: move TMR to cpu invisible vram region

    so that more visible vram can be available for umd.

    Reviewed-by: Christian König <christian.koenig@amd.com>.
    Signed-off-by: Tianci.Yin <tianci.yin@amd.com>
    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

With 828d6fde7f57 (62 fps/79% GPU usage):

https://camo.githubusercontent.com/4608d45738a5174f64daee0604d9f5d7146aee68/68747470733a2f2f692e696d6775722e636f6d2f757356306d33412e6a7067

With 828d6fde7f57 reverted (79 fps, 100% GPU usage):
https://camo.githubusercontent.com/77a505f85b75db0d2062aa4d8319b6007ba524fe/68747470733a2f2f692e696d6775722e636f6d2f394366695270452e6a7067

Tests were with aco-navi branch:
https://gitlab.freedesktop.org/Venemo/mesa/tree/aco-navi

Performance with LLVM is comparable with the commit reverted or not, however.
Slightly better with the commit since GPU usage is lower for the same
performance:

With 828d6fde7f57 (61.4 fps/88% GPU usage):
https://i.imgur.com/kJgvRbq.jpg

Without 8d6fde7f57 (61.2 fps/100% GPU usage):
https://i.imgur.com/AemAss1.jpg

System:

linux-5.4-rc4 (also tested amd-staging-drm-next)
Mesa aco-navi (e641024) and Mesa git (8dadef2ec54)
MSI Evoke 5700 XT

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[Bug 112124] Kingdom Come: Deliverance (DXVK) - kernel performance regression [Navi] [RADV/ACO]

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=112124

Martin Peres <martin.peres@free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |MOVED
             Status|NEW                         |RESOLVED

--- Comment #1 from Martin Peres <martin.peres@free.fr> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/942.

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