lkml.org 
[lkml]   [2017]   [Mar]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: perf: massive perf_event slowdown between 4.9 and 4.11-rc
On Thu, 16 Mar 2017, Vince Weaver wrote:

> Anyway all perf_event functionality (especially reads) has become about
> 20x slower, at least on Intel machines (haswell and skylake are the only
> ones I've tested) sometime between 4.9 and 4.11-rc

False alarm, I forgot I had debugging (KASAN, etc) turned on in this
kernel tree because I had been fuzzing.

sorry about that.

Vince

\
 
 \ /
  Last update: 2017-03-16 18:59    [W:0.046 / U:0.060 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site