lkml.org 
[lkml]   [2018]   [Mar]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 2/2] x86/microcode: Fix CPU synchronization routine
On Wed, 14 Mar 2018, Borislav Petkov wrote:
> Also, since the update is serialized and it also takes a couple of
> thousand cycles per microcode engine, increase the exit timeout by the
> number of CPUs on the system.

Maybe on AMD it is that fast ;-)

Intel takes anything from twenty thousand cycles to several *million*
cycles per core, proportional to microcode update size.

--
Henrique Holschuh

\
 
 \ /
  Last update: 2018-03-15 02:01    [W:0.104 / U:2.812 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site