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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Kingdom Come: Deliverance (DXVK) - kernel performance regression [Navi] [RADV/ACO]"
href="https://bugs.freedesktop.org/show_bug.cgi?id=112124">112124</a>
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<th>Summary</th>
<td>Kingdom Come: Deliverance (DXVK) - kernel performance regression [Navi] [RADV/ACO]
</td>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>DRI git
</td>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
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<th>OS</th>
<td>Linux (All)
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>not set
</td>
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<th>Priority</th>
<td>not set
</td>
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<th>Component</th>
<td>DRM/AMDgpu
</td>
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
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<th>Reporter</th>
<td>asheldon55@gmail.com
</td>
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<pre>Kingdom Come: Deliverance (DXVK) has regressed in performance due to the
following kernel commit, with aco-navi:
commit 828d6fde7f574d74b0a6a591345d3c42b62d5e21
Author: Tianci.Yin <<a href="mailto:tianci.yin@amd.com">tianci.yin@amd.com</a>>
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 <<a href="mailto:christian.koenig@amd.com">christian.koenig@amd.com</a>>.
Signed-off-by: Tianci.Yin <<a href="mailto:tianci.yin@amd.com">tianci.yin@amd.com</a>>
Signed-off-by: Alex Deucher <<a href="mailto:alexander.deucher@amd.com">alexander.deucher@amd.com</a>>
With 828d6fde7f57 (62 fps/79% GPU usage):
<a href="https://camo.githubusercontent.com/4608d45738a5174f64daee0604d9f5d7146aee68/68747470733a2f2f692e696d6775722e636f6d2f757356306d33412e6a7067">https://camo.githubusercontent.com/4608d45738a5174f64daee0604d9f5d7146aee68/68747470733a2f2f692e696d6775722e636f6d2f757356306d33412e6a7067</a>
With 828d6fde7f57 reverted (79 fps, 100% GPU usage):
<a href="https://camo.githubusercontent.com/77a505f85b75db0d2062aa4d8319b6007ba524fe/68747470733a2f2f692e696d6775722e636f6d2f394366695270452e6a7067">https://camo.githubusercontent.com/77a505f85b75db0d2062aa4d8319b6007ba524fe/68747470733a2f2f692e696d6775722e636f6d2f394366695270452e6a7067</a>
Tests were with aco-navi branch:
<a href="https://gitlab.freedesktop.org/Venemo/mesa/tree/aco-navi">https://gitlab.freedesktop.org/Venemo/mesa/tree/aco-navi</a>
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):
<a href="https://i.imgur.com/kJgvRbq.jpg">https://i.imgur.com/kJgvRbq.jpg</a>
Without 8d6fde7f57 (61.2 fps/100% GPU usage):
<a href="https://i.imgur.com/AemAss1.jpg">https://i.imgur.com/AemAss1.jpg</a>
System:
linux-5.4-rc4 (also tested amd-staging-drm-next)
Mesa aco-navi (e641024) and Mesa git (8dadef2ec54)
MSI Evoke 5700 XT</pre>
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