lkml.org 
[lkml]   [2015]   [Dec]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] x86/rapl: Do not load in a guest
On Fri, 4 Dec 2015 09:22:56 +0100
Peter Zijlstra <peterz@infradead.org> wrote:

> Also, yuck @ powercap/intel_rapl.c for doing rdmsr_on_cpu() +
> wrmsr_on_cpu() all over the place.
Can you please be more specific? is the concern related to the
overhead of IPI? I am doing these calls based on MSR CPU scope and
consider the fact that access is less frequent.

Thanks,

Jacob


\
 
 \ /
  Last update: 2015-12-04 19:01    [W:0.625 / U:0.100 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site