linux-kernel - Re: [REPORT] First "glitch1" results, 2.6.21-rc7-git6-CFSv5 + SD 0.46

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Message-Id: <200704231949.06108.edt@aei.ca>
Date:	Mon, 23 Apr 2007 19:49:05 -0400
From:	Ed Tomlinson <edt@....ca>
To:	davidsen@...idon.tmr.com
Cc:	"Kolivas, Con" <kernel@...ivas.org>,
	"Molnar, Ingo" <mingo@...e.hu>,
	Linux Kernel M/L <linux-kernel@...r.kernel.org>
Subject: Re: [REPORT] First "glitch1" results, 2.6.21-rc7-git6-CFSv5 + SD 0.46

On Monday 23 April 2007 19:45, Ed Tomlinson wrote:
> On Monday 23 April 2007 17:57, Bill Davidsen wrote:
> > I am not sure a binary attachment will go thru, I will move to the web 
> > ste if not.
> 
> I did a quick try of this script here.
> 
> With SD 0.46 with X at nice 0 I was getting 1-2 frames per second.  I decided to try cfs v5.
> The option disable auto renicing did not work so many threads other than X are now at -19...
> 
> SD 0.46		1-2 FPS
> cfs v5 nice -19	219-233 FPS
> cfs v5 nice 0 	1000-1996
   cfs v5 nice -10  60-65 FPS
> 
> Looks like, in this case, nice -19 for X is NOT a good idea.
> 
> Kernel is 2.6.20.7 (gentoo) UP amd64 with HZ 300 voluntary prempt (a fully premptable kernel eventually 
> locks up switching between 32 and 64 apps)

Thanks
Ed 
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