lkml.org 
[lkml]   [2015]   [Feb]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH RESEND v9 00/10] sched: consolidation of CPU capacity and usage
On Fri, Feb 20, 2015 at 11:34:47AM +0000, Peter Zijlstra wrote:
> On Thu, Feb 19, 2015 at 12:49:40PM +0000, Morten Rasmussen wrote:
>
> > Also, it still not clear why patch 10 uses relative capacity reduction
> > instead of absolute capacity available to CFS tasks.
>
> As present in your asymmetric big and small systems? Yes it would be
> unfortunate to migrate a task to an idle small core when the big core is
> still faster, even if reduced by rt/irq work.

Yes, exactly. I don't think it would cause any harm for symmetric cases
to use absolute capacity instead. Am I missing something?


\
 
 \ /
  Last update: 2015-02-20 13:01    [W:0.732 / U:0.164 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site