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Subject: Re: [patch] voluntary-preempt-2.6.8.1-P5
From: Lee Revell <rlrevell@joe-job.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: linux-kernel <linux-kernel@vger.kernel.org>,
       Thomas Charbonnel <thomas@undata.org>,
       Florian Schmidt <mista.tapas@gmx.net>,
       Felipe Alfaro Solana <felipe_alfaro@linuxmail.org>,
       Mark_H_Johnson@raytheon.com
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On Sat, 2004-08-21 at 05:18, Ingo Molnar wrote:
> * Lee Revell <rlrevell@joe-job.com> wrote:
> 
> > > > http://krustophenia.net/testresults.php?dataset=2.6.8.1-P6#/var/www/2.6.8.1-P6/trace8.txt
> > > 
> > > i suspect if you turn off tracing (or disable it in the kernel
> > > completely) then you'd see below-100 usec latencies here. A trace entry
> > > costs ~0.3 usecs on your box, so this 50-entry trace has roughly 15
> > > usecs of tracing overhead :-)
> > > 
> > 
> > FWIW, I did see one of these over 200 usecs.
> 
> which trace is this?
> 

I don't think I was able to save this one.  I will post it if I see it
again.

Lee