lkml.org 
[lkml]   [2012]   [Sep]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH RT] hwlat_detector: Check the outer side of the loop
On 09/12/2012 10:34 AM, Steven Rostedt wrote:
> The hwlat_detector performs the following test:
>
> t1 = ktime_get();
> t2 = ktime_get();
>
> [ do the checks of t2 - t1 ]
>
> It can detect things like SMIs if it occurs between the t1 and t2
> timestamps, as there will be a large difference between the two.

Oops. Good catch.

Jon.



\
 
 \ /
  Last update: 2012-09-12 18:02    [W:0.169 / U:4.120 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site