lkml.org 
[lkml]   [2012]   [Mar]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH 1/1] Fix number of events displayed in header
From
Great, thanks! A (corrected) patch coming up...

Ashay


2012/3/20 Peter Zijlstra <a.p.zijlstra@chello.nl>:
> On Tue, 2012-03-20 at 15:04 -0500, Ashay Rane wrote:
>> Oh, okay. Thanks for the clarification!
>>
>> However, my reasoning behind including the actual count of the events
>> was that (as far as I can tell) it is not displayed in any of the perf
>> report outputs. I understand that the count is not precise (because of
>> sampling errors) but the sampling frequency (-F) can always be
>> adjusted to get a more accurate number.
>>
>> With the inclusion of the count, it then becomes possible to compare
>> multiple different versions of a program. Hence the patch.
>
> I'm okay if you change the wording of the existing message to be
> clearer. I'm also okay if you add this extra information if you find
> this useful.
>
> In that case, also have a look at the data generated by perf record -s,
> this dumps a PERF_RECORD_READ of the actual counter value at the exit of
> every task [doesn't work with per-cpu counters].
>
>


\
 
 \ /
  Last update: 2012-03-20 21:29    [W:0.029 / U:2.084 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site