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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [BDW Bisected]Smokin-Guns v1.1 and urbanterror v4.1 performance reduced ~15%"
href="https://bugs.freedesktop.org/show_bug.cgi?id=84444">84444</a>
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[BDW Bisected]Smokin-Guns v1.1 and urbanterror v4.1 performance reduced ~15%
</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>lilix.cheng@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>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=107034" name="attach_107034" title="dmesg.log">attachment 107034</a> <a href="attachment.cgi?id=107034&action=edit" title="dmesg.log">[details]</a></span>
dmesg.log
Environment:
-----------------------------------
Platform:BDW
Libdrm:(master)libdrm-2.4.56-29-g666788a6062de62aa0b3560760fbb0903167a319
Mesa:(master)5ccdc23a86978628449ace0058cd3697020b0c94
Xserver:(master)xorg-server-1.16.0-335-gcc59be38b7eff52a1d003b
Xf86_video_intel:(master)2.99.916-68-gf785035d5bd42a778d4be0bf3ff8678bd7a7e503
Cairo:(master)fbb0a260b707cb5f02a14cc368c6f2f0d63564c3
Libva:(master)5faa5f50382af6d2f58ba07bbc64d2e9e63abad9
Libva_intel_driver:(master)925c98afcd381e52b37eb3870c3c80ff9c59a069
Kernel:(drm-intel-nightly)7101d84020f63f1da7e0c5d021cdd6be4d515de5
Bug detailed description:
---------------------------------------------
Smokin-Guns v1.1 and urbanterror v4.1 performance reduced ~15% on BDW.This
problem exist both on gnome-session and Raw X,it doesn't exist on
IVB/HSW/BYT-M.
It's kernel (drm-intel-next-queued)regression,bisect result first bad commit
is:
commit d37cf5f7e1b315585940a735a8508d955ffc0f16
Author: Mika Kuoppala <<a href="mailto:mika.kuoppala@linux.intel.com">mika.kuoppala@linux.intel.com</a>>
AuthorDate: Fri Sep 19 20:05:26 2014 +0300
Commit: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
CommitDate: Wed Sep 24 10:38:41 2014 +0200
drm/i915/bdw: Cleanup pre prod workarounds
BTW,this issue also exist on drm-intel-nightly branch.
Reproduce steps:
---------------------------------------------
1. xinit&
2. vblank_mode=0 ./smokinguns.x86_64 +set r_fullscreen 1 +timedemo 1 +set
demodone "quit" +set demoloop1 "demo pts; set nextdemo vstr demodone" +vstr
demoloop1 +setr_customwidth 1920 +set r_customheight 1080</pre>
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