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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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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/HSW/BYT-M/BDW] GpuTest_v0.5_triangle is slower by 10%~50% in fullscreen than in windowed & composited mode"
href="https://bugs.freedesktop.org/show_bug.cgi?id=80705">80705</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>idr@freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[IVB/HSW/BYT-M/BDW] GpuTest_v0.5_triangle is slower by 10%~50% in fullscreen than in windowed & composited mode
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-3d-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</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>Drivers/DRI/i965
</td>
</tr>
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<th>Product</th>
<td>Mesa
</td>
</tr></table>
<p>
<div>
<pre>Platform: BYT-M/IVB/HSW/BDW
Libdrm: (master)libdrm-2.4.54-17-ge8c3c1358ecaf4e90f7d43762357ae6f8e2022b6
Mesa: (master)c58486516f2ec8341f92554e28fd84c10d835a45
Xserver:
(master)xorg-server-1.15.99.902-121-g2f5cf9ff9a0f713b7e038636484c77f113a5f10a
Xf86_video_intel:
(master)2.99.912-164-gc5c7dd24a55f04322d5eec10dc4352d8a8e92b1e
Cairo: (master)f574fec8d2d1f83525fd7e4dbb266b6e5091627d
Libva: (master)c61d8c6ce9ffc27320e9e177c1e1123d5f1b5014
Libva_intel_driver: (master)745340dd013399f64507de73401ab3adb712dad5
Kernel: (drm-intel-nightly) git-1087d4
Bug detailed description:
----------------------------------------------
GpuTest_v0.5_triangle is slower by 10%~50% in fullscreen than in windowed &
composited mode on BYT-M/IVB/HSW/BDW, The problem exists both on gnome-session
and Raw X.
Reproduce steps:
---------------------------------------------
1. xinit&
2. ./GpuTest /test=triangle /width=1920 /height=1080 /fullscreen /benchmark
/no_scorebox</pre>
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