Re: Sched - graphic smoothness under load - cfs-v13 sd-0.48

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From: Miguel Figueiredo
Date: Sunday, May 20, 2007 - 9:29 am

Bill Davidsen wrote:

As I tryied myself kernels 2.6.21, 2.6.21-cfs-v13, and 2.6.21-ck2 on the 
same machine i found *very* odd those numbers you posted, so i tested 
myself those kernels to see the numbers I get instead of talking about 
the usage of kernel xpto feels like.

I did run glxgears with kernels 2.6.21, 2.6.21-cfs-v13 and 2.6.21-ck2 
inside Debian's GNOME environment. The hardware is an AMD Sempron64 3.0 
GHz, 1 GB RAM, Nvidia 6800XT.
Average and standard deviation from the gathered data:

* 2.6.21: 		average = 11251.1; stdev = 0.172
* 2.6.21-cfs-v13:	average = 11242.8; stdev = 0.033
* 2.6.21-ck2:		average = 11257.8; stdev = 0.067

Keep in mind those numbers don't mean anything we all know glxgears is 
not a benchmark, their purpose is only to be used as comparison under 
the same conditions.

One odd thing i noticed, with 2.6.21-cfs-v13 the gnome's time applet in 
the bar skipped some minutes (e.g. 16:23 -> 16:25) several times.

The data is available on: 
http://www.debianPT.org/~elmig/pool/kernel/20070520/


How did you get your data? I am affraid your data it's wrong, there's no 
  such big difference between the schedulers...

-- 

Com os melhores cumprimentos/Best regards,

Miguel Figueiredo
http://www.DebianPT.org
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Messages in current thread:
Sched - graphic smoothness under load - cfs-v13 sd-0.48, Bill Davidsen, (Sat May 19, 1:02 pm)
Re: Sched - graphic smoothness under load - cfs-v13 sd-0.48, Michael Gerdau, (Sat May 19, 11:12 pm)
Re: Sched - graphic smoothness under load - cfs-v13 sd-0.48, Michael Gerdau, (Sat May 19, 11:59 pm)
Re: Sched - graphic smoothness under load - cfs-v13 sd-0.48, Miguel Figueiredo, (Sun May 20, 9:29 am)
Re: Sched - graphic smoothness under load - cfs-v13 sd-0.48, Miguel Figueiredo, (Sun May 20, 9:58 am)
Re: Sched - graphic smoothness under load - cfs-v13 sd-0.48, Miguel Figueiredo, (Tue May 22, 1:01 pm)
Re: Sched - graphic smoothness under load - cfs-v13 sd-0.48, William Lee Irwin III, (Tue May 22, 9:06 pm)
Re: Sched - graphic smoothness under load - cfs-v13 sd-0.48, Michael Gerdau, (Tue May 22, 10:23 pm)
Re: Sched - graphic smoothness under load - cfs-v13 sd-0.48, Miguel Figueiredo, (Wed May 23, 11:29 am)
Re: Sched - graphic smoothness under load - cfs-v13 sd-0.48, Miguel Figueiredo, (Wed May 23, 2:03 pm)