very bad performance

Mihai Donțu mihai.dontu at gmail.com
Wed Aug 8 15:53:47 PDT 2012


On Wed, 08 Aug 2012 23:34:11 +0100 Chris Wilson wrote:
> On Thu, 9 Aug 2012 01:16:33 +0300, Mihai Donțu wrote:
> > I suppose that this particular GPU does not support dynamic
> > clocking. :|
> 
> It does. I just gave the wrong file. Try
>   cat /sys/kernel/debug/dri/0/i915_cur_delayinfo 
> instead.
> 

Oh, much better. :-)

$ cat /sys/kernel/debug/dri/0/i915_cur_delayinfo
GT_PERF_STATUS: 0x00000d29
RPSTAT1: 0x00040d00
Render p-state ratio: 13
Render p-state VID: 41
Render p-state limit: 255
CAGF: 650MHz
RP CUR UP EI: 27276us
RP CUR UP: 136us
RP PREV UP: 0us
RP CUR DOWN EI: 0us
RP CUR DOWN: 0us
RP PREV DOWN: 0us
Lowest (RPN) frequency: 650MHz
Nominal (RP1) frequency: 650MHz
Max non-overclocked (RP0) frequency: 1300MHz

I'll keep an eye on it.

Thank you,

-- 
Mihai Donțu



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