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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - CPU iowait higher when run the GPU multi decoding threads"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109830#c29">Comment # 29</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - CPU iowait higher when run the GPU multi decoding threads"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109830">bug 109830</a>
from <span class="vcard"><a class="email" href="mailto:owen.zhang@intel.com" title="Owen Zhang <owen.zhang@intel.com>"> <span class="fn">Owen Zhang</span></a>
</span></b>
<pre>(In reply to Chris Wilson from <a href="show_bug.cgi?id=109830#c28">comment #28</a>)
<span class="quote">> There is no reason to make any change upstream.
>
> Performance improvements even for bogus metrics, especially for bogus
> metrics, do not get backported as they have a much greater risk of
> regression than their benefit.
>
> If it was a regression in real-world performance, then it would be a bug. By
> your own statement it is not a regression to previous kernels, and the
> performance has not changed.</span >
yes, the performance(fps) hasn't any changes.
but the CPU usage(iowait) is much higher. in our customer view, the CPU usage
also is one important performance reference point. thanks very much.</pre>
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