Random short freezes due to TTM buffer migrations

Marek Olšák maraeo at gmail.com
Tue Aug 23 18:01:43 UTC 2016


On Thu, Aug 18, 2016 at 10:52 AM, Christian König
<deathsimple at vodafone.de> wrote:
> In that case my patch should clearly help with that.
>
> Going to release what I have so far today, but looks like I need more time
> actually fixing this.
>
> In the meantime you could try the "drm/amdgpu: fix lru size grouping" patch
> as well. It fixes a bug related to this and could help as well.

Thanks. "drm/amdgpu: fix lru size grouping" does help a lot and
removes most of the long stalls.

There are still some spikes in the number of moved bytes, but rarely
do they cause long stalls and the number of moved bytes is lower now (e.g.
the spikes are at 512MB/s instead of 4GB/s).

Marek


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