[PATCH 0/3] drm/amdgpu: Tweaks for high pressure on CPU visible VRAM
michel at daenzer.net
Mon May 22 10:00:09 UTC 2017
On 20/05/17 06:26 PM, Marek Olšák wrote:
> On May 20, 2017 3:26 AM, "Michel Dänzer" <michel at daenzer.net
> <mailto:michel at daenzer.net>> wrote:
> On 20/05/17 01:14 AM, Marek Olšák wrote:
> > Hi Michel,
> > I've applied your series
> Thanks for testing it.
> > and it doesn't help with low Dirt Rally performance on Fiji. I see TTM
> > buffer moves at 800MB/s and many VRAM page faults.
> Did you see this:
> >> Note that there's only little if any improvement of the average
> >> reported, but the minimum framerate as seen on the HUD goes from
> ~10 fps
> >> to ~17.
> I.e. it mostly affects the minimum framerate and smoothness for me
> as well.
> Without the series, I get 70 average fps. With the series, I get 30
> average fps. That might just be random bad luck. I don't know.
Hmm, yeah, maybe that was just one of the random slowdowns you've been
talking about in other threads and on IRC?
I can't reproduce any slowdown with these patches, even leaving visible
VRAM size at 256 MB.
Earthling Michel Dänzer | http://www.amd.com
Libre software enthusiast | Mesa and X developer
More information about the amd-gfx