Re: [Nouveau] glmark2: high CPU usage - DRI3 & modeset

2016-04-07 Thread poma 
On 07.04.2016 14:51, Karol Herbst wrote:
> did the test result changed in any way? Maybe the DRI2 run was vsynced and the
> DRI3 not?
> Nouveau has a pretty high cpu usage in general, because it usually busy waits 
> on
> fences (I think? not sure where it was exactly that nouveau is busy waiting)
> 
>> poma  hat am 7. April 2016 um 13:56 geschrieben:
>>
>>
>>
>> $ glmark2
>> ===
>> glmark2 2014.03
>> ===
>> OpenGL Information
>> GL_VENDOR: nouveau
>> GL_RENDERER:   Gallium 0.4 on NV98
>> GL_VERSION:3.0 Mesa 11.2.0
>> ===
>>
>>
>> /etc/X11/xorg.conf.d/nouveau.conf 
>> Section "Device"
>>   Identifier  "gpu0"
>>   Driver  "nouveau"
>> EndSection
>>
>> $ ps -C glmark2 -o cmd,pcpu
>> CMD %CPU
>> glmark2 16.2
>>
>> ~
>>
>> /etc/X11/xorg.conf.d/nouveau.conf 
>> Section "Device"
>>   Identifier  "gpu0"
>>   Driver  "nouveau"
>>   Option  "DRI" "3"
>> EndSection
>>
>> $ ps -C glmark2 -o cmd,pcpu
>> CMD %CPU
>> glmark2 86.4
>>
>> ~
>>
>> /etc/X11/xorg.conf.d/modeset.conf 
>> Section "Device"
>>   Identifier  "gpu0"
>>   Driver  "modesetting"
>> EndSection
>>
>> $ ps -C glmark2 -o cmd,pcpu
>> CMD %CPU
>> glmark2 94.5
>>


'vblank_mode=0 glmark2' makes no difference.

A -fence- as a sync object?
https://www.opengl.org/wiki/Sync_Object#Fence


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Re: [Nouveau] glmark2: high CPU usage - DRI3 & modeset

2016-04-07 Thread Karol Herbst 
did the test result changed in any way? Maybe the DRI2 run was vsynced and the
DRI3 not?
Nouveau has a pretty high cpu usage in general, because it usually busy waits on
fences (I think? not sure where it was exactly that nouveau is busy waiting)

> poma  hat am 7. April 2016 um 13:56 geschrieben:
> 
> 
> 
> $ glmark2
> ===
> glmark2 2014.03
> ===
> OpenGL Information
> GL_VENDOR: nouveau
> GL_RENDERER:   Gallium 0.4 on NV98
> GL_VERSION:3.0 Mesa 11.2.0
> ===
> 
> 
> /etc/X11/xorg.conf.d/nouveau.conf 
> Section "Device"
>   Identifier  "gpu0"
>   Driver  "nouveau"
> EndSection
> 
> $ ps -C glmark2 -o cmd,pcpu
> CMD %CPU
> glmark2 16.2
> 
> ~
> 
> /etc/X11/xorg.conf.d/nouveau.conf 
> Section "Device"
>   Identifier  "gpu0"
>   Driver  "nouveau"
>   Option  "DRI" "3"
> EndSection
> 
> $ ps -C glmark2 -o cmd,pcpu
> CMD %CPU
> glmark2 86.4
> 
> ~
> 
> /etc/X11/xorg.conf.d/modeset.conf 
> Section "Device"
>   Identifier  "gpu0"
>   Driver  "modesetting"
> EndSection
> 
> $ ps -C glmark2 -o cmd,pcpu
> CMD %CPU
> glmark2 94.5
> 
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[Nouveau] glmark2: high CPU usage - DRI3 & modeset

2016-04-07 Thread poma 

$ glmark2
===
glmark2 2014.03
===
OpenGL Information
GL_VENDOR: nouveau
GL_RENDERER:   Gallium 0.4 on NV98
GL_VERSION:3.0 Mesa 11.2.0
===


/etc/X11/xorg.conf.d/nouveau.conf 
Section "Device"
  Identifier  "gpu0"
  Driver  "nouveau"
EndSection

$ ps -C glmark2 -o cmd,pcpu
CMD %CPU
glmark2 16.2

~

/etc/X11/xorg.conf.d/nouveau.conf 
Section "Device"
  Identifier  "gpu0"
  Driver  "nouveau"
  Option  "DRI" "3"
EndSection

$ ps -C glmark2 -o cmd,pcpu
CMD %CPU
glmark2 86.4

~

/etc/X11/xorg.conf.d/modeset.conf 
Section "Device"
  Identifier  "gpu0"
  Driver  "modesetting"
EndSection

$ ps -C glmark2 -o cmd,pcpu
CMD %CPU
glmark2 94.5

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