lkml.org 
[lkml]   [2006]   [Apr]   [28]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [ckrm-tech] Re: [PATCH 0/9] CPU controller
FromMike Galbraith <>
DateFri, 28 Apr 2006 09:46:35 +0200
On Fri, 2006-04-28 at 09:11 +0200, Mike Galbraith wrote:
> On Fri, 2006-04-28 at 09:56 +0400, Kirill Korotaev wrote:
> > I'm also pretty sure, that CPU controller based on timeslice tricks 
> > behaves poorly on burstable load patterns as well and with interactive 
> > tasks. So before commiting I propose to perform a good testing on 
> > different load patterns.> > Yes, it can only react very slowly.

Actually, this might not be that much of a problem.  I know I can
traverse queue heads periodically very cheaply.  Traversing both active
and expired arrays to requeue starving tasks once every 100ms costs max
4usecs (3GHz P4) for a typical distribution.

	-Mike

-
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: 2006-04-28 09:47    [from the cache]
©2003-2008