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<base href="https://bugs.freedesktop.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BSW] Performance value reduced by 600% when running WebGL earthscreen case(fail rate 1/3)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89860">89860</a>
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<th>Summary</th>
<td>[BSW] Performance value reduced by 600% when running WebGL earthscreen case(fail rate 1/3)
</td>
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<th>Product</th>
<td>DRI
</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
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>DRM/Intel
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>wendy.wang@intel.com
</td>
</tr>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
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<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
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<pre>System Environment:
-----------------------------------------------------
Non-working platforms: Braswell
Browser: Google Chrome 33.0.1750.152
Desktop environment: gnome-session
Case running window: window mode by default
2015-3-24 graphics stack:
Kernel: (drm-intel-nightly)26db3817223d120e791f36b6be1d52b1aece47c7
Libdrm:
(master)libdrm-2.4.60-17-g8dff7a04780a0f028aa7c0218806a5ee59b1a40d
Mesa: (master)43277fcd59b163a8bdd00d7875557bb71ecf48ff
Xserver:
(master)xorg-server-1.17.0-23-g0a78b599b34cc8b5fe6fe82f90e90234e8ab7a56
Xf86_video_intel:
(master)2.99.917-203-g44452825fb862c81957f53e04f739e2d96864f91
Cairo: (master)71392653803277cec6deea9e7aa4696f8b22dd73
Bug detailed description
--------------------------
This is intermittent issue, the fail rate is about 1 out 3 cycles.
When issue happened, the performance values dropped to below 10 fps, while in
normal status, we can get 50 fps.
Regression: Yes
----------------------------
Bisect still in the progress in drm-intel-next-queued branch
Good kernel commit:(drm-intel-nightly) 8b4216f91c7bf8d3459cadf9480116220bd6545e
Bad kernel commit: (drm-intel-nightly)26db3817223d120e791f36b6be1d52b1aece47c7
==Reproduce steps==
----------------------------
1.start web server
2.run /usr/local/games/WebGL/earthscreen/earth4Video.html by google-chrome</pre>
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