Random short freezes due to TTM buffer migrations

[Christian König]

Am 23.08.2016 um 21:55 schrieb Marek Olšák:
> On Tue, Aug 23, 2016 at 8:01 PM, Marek Olšák <maraeo at gmail.com> wrote:
>> 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).
> Shouldn't "drm/amdgpu: fix lru size grouping" be a candidate for
> stable since it improves usability of the driver and seems to fix a
> regression?

Yeah, probably. But when did the TTM LRU handling got upstream?

Alex, wasn't that just in the current cycle? I complete lost track when 
stuff goes upstream because of the internal branch we use to work with now.

Christian.

>
> Marek