lkml.org 
[lkml]   [2018]   [Jun]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v10 1/7] x86/tsc: remove tsc_disabled flag
On Fri, 15 Jun 2018, Pavel Tatashin wrote:

> tsc_disabled is set when notsc is passed as kernel parameter. The reason we
> have notsc is to avoid timing problems on multi-socket systems. We already
> have a mechanism, however, to detect and resolve these issues by invoking
> tsc unstable path. Thus, make notsc to behave the same as tsc=unstable.

notsc also excludes TSC from being used at all, while with your change its
suddenly used in sched_clock().

I'm not opposed to that change but the changelog is completely misleading
as it suggest that this is a change which has no functional impact.

Thanks,

tglx

\
 
 \ /
  Last update: 2018-06-19 19:34    [W:0.232 / U:0.060 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site