lkml.org 
[lkml]   [2012]   [May]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH] perf, x86: Make cycles:p working on SNB
From
On Thu, May 24, 2012 at 9:57 AM, Peter Zijlstra <peterz@infradead.org> wrote:
> On Thu, 2012-05-24 at 09:52 +0200, Peter Zijlstra wrote:
>>
>> OK, so how about I queue the below and if the u-code updates gets
>> released before this hits Linus' tree we'll make it all go away ;-)
>>
> Also, I suspect the u-code update might make INST_RETIRED.ANY_P
> available on SNB again voiding the need to use a different encoding. But
> we'll cross that bridge when we'll get to it.

The PREC_DIST is by design, it is not a work-around of any sort.
It is an attempt at getting a better distribution of samples when sampling
with inst_retired.


\
 
 \ /
  Last update: 2012-05-24 10:41    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site