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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [GEN8+] 1-2% perf drop in SynMark2 OglPSPom"
href="https://bugs.freedesktop.org/show_bug.cgi?id=110029">110029</a>
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<th>Summary</th>
<td>[GEN8+] 1-2% perf drop in SynMark2 OglPSPom
</td>
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<th>Product</th>
<td>Mesa
</td>
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<th>Version</th>
<td>git
</td>
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<th>Hardware</th>
<td>Other
</td>
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
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<th>Component</th>
<td>Drivers/DRI/i965
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<th>Assignee</th>
<td>intel-3d-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>eero.t.tamminen@intel.com
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<th>QA Contact</th>
<td>intel-3d-bugs@lists.freedesktop.org
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<pre>Setup:
* Ubuntu 18.04 with Unity/compiz
* v4.19+ drm-tip kernel & git version of Xserver
* Mesa git version
* BSW/BDW/BXT/SKL/KBL/CFL HW
* FullHD monitor
Test-case:
* SynMark2 v7 OglPSPom test in FullHD fullscreen
Performance of that has dropped by 1-2% on all GEN8+ platforms between
following Mesa commits:
* 2019-02-01 17:34:02 ab940b0d97: spirv: Support LocalSizeId and
LocalSizeHintId execution modes
* 2019-02-02 14:42:14 0aa5a97b03: relnotes: Add VK_EXT_buffer_device_address
There was no perf drop on SNB/HSW, or in other benchmarks I'm running.
Wontfixing this is fine, but I think somebody should bisect it first.</pre>
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