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<base href="https://bugs.freedesktop.org/" />
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [IVB BYT HSW BDW Bisected] SynMark_OglBatch5/OglDrvCtx performance reduced 20%~40%"
href="https://bugs.freedesktop.org/show_bug.cgi?id=79623">79623</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>chris@chris-wilson.co.uk
</td>
</tr>
<tr>
<th>Summary</th>
<td>[IVB BYT HSW BDW Bisected] SynMark_OglBatch5/OglDrvCtx performance reduced 20%~40%
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>major
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>jianx.zhou@intel.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>git
</td>
</tr>
<tr>
<th>Component</th>
<td>Driver/intel
</td>
</tr>
<tr>
<th>Product</th>
<td>xorg
</td>
</tr></table>
<p>
<div>
<pre>Libdrm: (master)libdrm-2.4.54-9-g8fc62ca8ac010659023bb63c4759eb683de4f9af
Mesa: (master)328e9593173bc69352e1707f119a7aca9d540cf9
Xserver: (master)xorg-server-1.15.99.902-117-g7ca458493aa2f0aa091c989ea0768611
Xf86_video_intel:
(master)2.99.911-250-g4cafd1fbb1a2441a9ba5dac7f2a0e1b3f5957c62
Cairo: (master)ead5c7909f3db1d0d81121fc2775c458871891b2
Libva: (staging)35e70cb9b9c77dfb99fb370e319ed501f0c31b17
Libva_intel_driver: (staging)fbbe401aa28a0b3859d587ef08f0df15a2f7c8f2
Kernel_version: drm-intel-nightly(git-455a8f)
Bug detailed description:
----------------------------------------------
SynMark_OglBatch5/OglDrvCtx performance reduced 20%~40% on IVB/BYT/HSW/BDW, The
problem exists both on gnome-session and Raw X.
It’s Xf86 regression, bisecting show that the first bad commit is:
975b9798be77b30cbed485583d0ccb48318708f7 (bad commit)
0fbe8995d51b4643f1cf06c07da8b4b5ac5ae7c3 (skip error with “dri3.c:47:1:error:
control reaches end of non-void function ”)
67b37332bd45dd4cea297107bfdc9df21984fdcd (skip error with “dri3.c:47:1: error:
control reaches end of non-void function”)
9cf6cd9726ed5ba73bb8c38c06f7b5c78706309b (skip error with “dri3.c:47:1: error:
control reaches end of non-void function”)
d8eb87f84f88ad2df42c6fed1d93df76589a14e3 (skip error with “dri3.c:47:1: error:
control reaches end of non-void function”)
Reproduce steps:
---------------------------------------------
1. xinit&
2. ./synmark2 OglBatch5</pre>
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