Re: [ck] Re: SD still better than CFS for 3d ?(was Re: 2.6.23-rc1)

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* Kenneth Prugh <[email protected]> wrote:

> Alright, Just got done with some testing of UT2004 between 2.6.23-rc1 
> CFS and 2.6.22-ck1 SD. This series of tests was run by spawning in a 
> map while not moving at all and always facing the same direction, 
> while slowing increasing the number of loops.
> 
> CFS generally seemed a lot smoother as the load increased, while SD 
> broke down to a highly unstable fps count that fluctuated massively 
> around the third loop. Seems like I will stick to CFS for gaming now.
> 
> Below you will find the results of my test with the average number of 
> FPS.

Thanks Kenneth for the testing! I've created a graph out of your 
numbers:

  http://people.redhat.com/mingo/misc/cfs-sd-ut2004-perf.jpg

(it also includes the SD numbers you got with the turn-yield-into-NOP 
hack applied.)

	Ingo
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