lkml.org 
[lkml]   [2003]   [Sep]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH] Nick's scheduler policy v10
Date
On Wed, 3 Sep 2003 09:50, Nick Piggin wrote:
> Martin J. Bligh wrote:
> >>>Not convinced of that - mm performs worse than mainline for me.
> >>
> >>Well, one of Con's patches caused a lot of idle time on volanomark.
> >>The reason for the change was unclear. I guess either a fairness or
> >>wakeup latency change (yes, it was a very scientific process, ahem).
> >>
> >>Anyway, in the process of looking at the load balancing, we found
> >>and fixed a problem (although it might now possibly over balance).
> >>This did cure most of the idle problems.
> >>
> >>So it could just be small changes causing things to go out of whack.
> >>I will try to get better data after (if ever) the thing is working
> >>nicely on the desktop.
> >
> >I think Con and I worked out that the degredations I was seeing
> >(on kernbench and SDET) were due to (in his words) "my hacks throwing the
> >cc cpu hogs onto the expired array more frequently".
>
> This didn't explain the huge idle time increases on volanomark and
> SPECjbb I think.

Yeah this was before the profile showed it to be idle time, and before I
isolated it to Ingo's A3 patch.

Con

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:48    [W:0.298 / U:0.188 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site