lkml.org 
[lkml]   [2010]   [Aug]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [RFC] BTS based perf user callchains
From
Date
On Mon, 2010-08-02 at 20:35 +0200, Frederic Weisbecker wrote:
> I'm not even sure that will work. Also, while looking at the BTS implementation
> in perf, I see we have one BTS buffer per cpu. But that doesn't look right as
> the code flow is not linear per cpu but per task. Hence I suspect we need
> one BTS buffer per task. But may be someone tried that and encountered a
> problem?

IIRC we flush the buffer when we deschedule the counter.


\
 
 \ /
  Last update: 2010-08-02 20:41    [W:0.083 / U:0.136 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site