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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [HSW Bisected]WebGL Google Auqarium/Google Dynamic Cubemap/Earthscreen/Google Toon-Shading cases performance value dropped by 20%"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89760">89760</a>
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<th>Summary</th>
<td>[HSW Bisected]WebGL Google Auqarium/Google Dynamic Cubemap/Earthscreen/Google Toon-Shading cases performance value dropped by 20%
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<th>Product</th>
<td>xorg
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>Other
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>major
</td>
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<th>Priority</th>
<td>medium
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<th>Component</th>
<td>Driver/intel
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<th>Assignee</th>
<td>chris@chris-wilson.co.uk
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<th>Reporter</th>
<td>wendy.wang@intel.com
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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<pre>Created <span class=""><a href="attachment.cgi?id=114616" name="attach_114616" title="Xorg log">attachment 114616</a> <a href="attachment.cgi?id=114616&action=edit" title="Xorg log">[details]</a></span>
Xorg log
Regression: yes
It's xorg driver regression, this issue can be more obvious on HSW Platforms.
>From bisect result, below commit is the first bad commit:
commit 72d208a7f2f0e8f2d93483e535154f34a8a26d81
Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Date: Thu Mar 5 12:26:15 2015 +0000
sna/dri2: Perform swap elision on windows for swap-interval==0
Run WebGL cases: Google Auqarium/Google Dynamic Cubemap/Earthscreen/Google
Toon-Shading cases on HSW, these cases performance fps dropped by 20%.
Reproduce tool-shading case steps:
1. Download
<a href="http://webglsamples.googlecode.com/hg/toon-shading/toon-shading.html">http://webglsamples.googlecode.com/hg/toon-shading/toon-shading.html</a> to local
2. Execute:
<a href="http://tinderbox.sh.intel.com/webglsamples.googlecode.com/hg/toon-shading/toon-shading.html">http://tinderbox.sh.intel.com/webglsamples.googlecode.com/hg/toon-shading/toon-shading.html</a>
Earth screen download address:
<a href="http://pnp.sh.intel.com/benchmarks/WRTBench_Packages/WRTBench_latest_project/WebGL-EarthScreen/earth4Video.html">http://pnp.sh.intel.com/benchmarks/WRTBench_Packages/WRTBench_latest_project/WebGL-EarthScreen/earth4Video.html</a>
dynamic-cubemap download address:
<a href="http://webglsamples.googlecode.com/hg/dynamic-cubemap/dynamic-cubemap.html">http://webglsamples.googlecode.com/hg/dynamic-cubemap/dynamic-cubemap.html</a>
aquarium download address:
<a href="http://webglsamples.googlecode.com/hg/aquarium/aquarium.html">http://webglsamples.googlecode.com/hg/aquarium/aquarium.html</a>
xorg.log file has been attached.</pre>
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