lkml.org 
[lkml]   [2014]   [Oct]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 1/7] sched: Introduce scale-invariant load tracking
On Wed, Oct 08, 2014 at 01:38:40PM +0200, Vincent Guittot wrote:
> I have in mind some system where the max achievable freq of a core
> depends of how many cores are running simultaneously because of some
> HW constraint like max current. In this case, the CPU might not reach
> max frequency even with an always running task.
> Then, beside frequency scaling, their is the uarch invariance that is
> introduced by patch 4 that will generate similar behavior of the load.

This is a 'common' issue. x86 and powerpc also suffer this. It can be
the result of either thermal or power thresholds.




\
 
 \ /
  Last update: 2014-10-10 11:42    [W:0.142 / U:0.212 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site