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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Bioshock Infinite and DiRT Showdown perform very poorly on any GPU with GCN >=1.1"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95474#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Bioshock Infinite and DiRT Showdown perform very poorly on any GPU with GCN >=1.1"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95474">bug 95474</a>
from <span class="vcard"><a class="email" href="mailto:0xe2.0x9a.0x9b@gmail.com" title="Jan Ziak <0xe2.0x9a.0x9b@gmail.com>"> <span class="fn">Jan Ziak</span></a>
</span></b>
<pre>(In reply to Alex Deucher from <a href="show_bug.cgi?id=95474#c2">comment #2</a>)
<span class="quote">> Can you identify what component caused the regression? mesa? llvm? kernel?</span >
That is a good question, but I do not know the answer.
Data:
Kernel: 4.6.0
Kernel module: radeon.ko
Resolution: 1920x1080
Game quality setting: Ultra
CPU: A10-7850K
CPU utilization: 120% (kernel-space is about 10% CPU)
GPU: R9 390
GPU utilization (radeontop): >>>> 15% <<<<
GPU performance level: forced max clocks
Based on this, it seems that the user-space component (mesa + llvm) is the
bottleneck.</pre>
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