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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#c22">Comment # 22</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 Tvrtko Ursulin from <a href="show_bug.cgi?id=109830#c21">comment #21</a>)
<span class="quote">> Why it can't work for 4.19? Or you mean doesn't work?
>
> What are the iowait numbers in drm-tip and 4.19 with the schedule_timeout
> hack?</span >
i changed the io_schedule_timeout to schedule_timeout in kernel 4.19, the
iowait also is 90%+.
but in drm-tip, the iowait number is around 60& in average.
i will try to test on kernel 5.0 in the next.</pre>
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