* CPU usage/threading on agd5f 4.15-wip
@ 2017-10-09 9:52 Andy Furniss
[not found] ` <321a77c8-a7ab-945f-cdf9-ad8e69f42713-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
0 siblings, 1 reply; 2+ messages in thread
From: Andy Furniss @ 2017-10-09 9:52 UTC (permalink / raw)
To: amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
On 4.15-wip with patches that make powerplay work I have an issue with
one game = unreal tournament alpha.
This doesn't seem to affect other things like xonotic or unigine demos.
Issue = on fixes 4.14 and other older kernels I've tried, the game is OK
ish perf wise, 20-40 fps.
On 4.15-wip its 10fps. Using HUD one obvious difference is that the slow
case is only mostly using one cpu core, on a good kernel all 4 of my old
phenom 2 x4 are used.
Both kernels seem based on 4.13-rc5 so I guess it's something amdgpu.
Trouble is, I can't bisect 4.15-wip, going back near or > 200 commits I
lock soon after startx.
So is there any change devs can think of that would cause this?
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: CPU usage/threading on agd5f 4.15-wip
[not found] ` <321a77c8-a7ab-945f-cdf9-ad8e69f42713-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
@ 2017-10-09 17:37 ` Andy Furniss
0 siblings, 0 replies; 2+ messages in thread
From: Andy Furniss @ 2017-10-09 17:37 UTC (permalink / raw)
To: amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
Andy Furniss wrote:
> On 4.15-wip with patches that make powerplay work I have an issue with
> one game = unreal tournament alpha.
>
> This doesn't seem to affect other things like xonotic or unigine demos.
>
> Issue = on fixes 4.14 and other older kernels I've tried, the game is OK
> ish perf wise, 20-40 fps.
>
> On 4.15-wip its 10fps. Using HUD one obvious difference is that the slow
> case is only mostly using one cpu core, on a good kernel all 4 of my old
> phenom 2 x4 are used.
>
> Both kernels seem based on 4.13-rc5 so I guess it's something amdgpu.
>
> Trouble is, I can't bisect 4.15-wip, going back near or > 200 commits I
> lock soon after startx.
>
> So is there any change devs can think of that would cause this?
I filed a bug for this so I could upload some screen shots.
Issue remains with updated 4.15-wip.
https://bugs.freedesktop.org/show_bug.cgi?id=103175
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2017-10-09 9:52 CPU usage/threading on agd5f 4.15-wip Andy Furniss
[not found] ` <321a77c8-a7ab-945f-cdf9-ad8e69f42713-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2017-10-09 17:37 ` Andy Furniss
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