[Bug 109830] CPU iowait higher when run the GPU multi decoding threads

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109830

--- Comment #29 from Owen Zhang <owen.zhang at intel.com> ---
(In reply to Chris Wilson from comment #28)
> 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.

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.

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