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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 - [IVB/BDW Bisected] Firefox-fishbowl.trace and Firefox-fishtank.trace performance reduced ~96%"
href="https://bugs.freedesktop.org/show_bug.cgi?id=87438">87438</a>
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<th>Summary</th>
<td>[IVB/BDW Bisected] Firefox-fishbowl.trace and Firefox-fishtank.trace performance reduced ~96%
</td>
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<th>Product</th>
<td>cairo
</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>major
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>xlib backend
</td>
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<th>Assignee</th>
<td>chris@chris-wilson.co.uk
</td>
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<th>Reporter</th>
<td>wendy.wang@intel.com
</td>
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<th>QA Contact</th>
<td>cairo-bugs@cairographics.org
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<pre>Created <span class=""><a href="attachment.cgi?id=110981" name="attach_110981" title="dmesg file">attachment 110981</a> <a href="attachment.cgi?id=110981&action=edit" title="dmesg file">[details]</a></span>
dmesg file
Environment:
-----------------------------------
Test Platform:IVB/BDW
GFX SW Stack
Libdrm:
(master)libdrm-2.4.58-19-gf99522e678dbbaffeca9462a8edcbe900574dc12
Mesa:
(master)83e8bb5b1a50c0105b642d559999f07fa64a982f
Xserver:
(master)xorg-server-1.16.99.901-98-g0f5fdaf600bfeada966aea942cb3e347d4efee30
Xf86_video_intel:
(master)2.99.916-177-g99537089346ed7a1bc6b02349fad93845e865bb9
Cairo:
(master)4a225fca5f121c31ddaa0af80a13bf95a7f21a5b
Libva:
(master)8986ec692b19d8dd6bd2aa118b5dffbd05a8f909
Libva_intel_driver:
(master)b5d6d9d425a6d539b27d22992bda05f79d1a0622
Kernel: (drm-intel-nightly)8b7ac3dc495c2d02322bc751322331d2691089e5
Regression:
-----------------------------------
YES
Bug detailed description:
---------------------------------------------
Firefox-fishbowl.trace and Firefox-fishtank.trace performance reduced ~96%.
It's Cairo regression, from bisect result, first bad commit is:
58728da6eba4d89ba7c4328b22a552af633abb05
Author: Bill Spitzak <<a href="mailto:spitzak@gmail.com">spitzak@gmail.com</a>>
Date: Thu Oct 9 19:46:13 2014 -0700
xlib: Use image fallback for GOOD/BEST filters
Fallback is not used if the symbols defined in the previous patch to
indicate if XRender does GOOD/BEST are true.
This patch also includes some changes to take advantage of the fact that
if there is an integer translation analyze_filter will already have set
the filter to NEAREST.
Reviewed-by: Bryce Harrington <<a href="mailto:b.harrington@samsung.com">b.harrington@samsung.com</a>
Reproduce steps:
---------------------------------------------
1, xinit
2, vblank_mode=0 CAIRO_TEST_TARGET=xlib ./cairo-perf-trace -i 12
/home/cairo-traces/benchmark/firefox-fishbowl.trace
dmesg and xorg.log files have been uploaded.</pre>
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