lkml.org 
[lkml]   [2013]   [Jul]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 0/5] perf: add two new features
On Tue, Jul 16, 2013 at 09:22:00AM +0300, Adrian Hunter wrote:
> On 28/06/13 22:22, Adrian Hunter wrote:
> > On 28/06/2013 6:27 p.m., Peter Zijlstra wrote:
> >> On Fri, Jun 28, 2013 at 04:22:16PM +0300, Adrian Hunter wrote:
> >>> Hi
> >>>
> >>> Please consider these two new perf features:
> >>> x86: add ability to calculate TSC from perf sample timestamps
> >>> perf: add 'keep tracking' flag to PERF_EVENT_IOC_DISABLE
> >>
> >> Please explain to us why you'd like to do this..
> >
> > I will see what information I can dig up. The short answer is that I need
> > to disable and re-enable a perf event but still be able to map IPs to their
> > DSOs and symbols - which means not losing mmap events.
>
> Any other comments?

Ah, thanks for the reminder.. well, I've applied patches 1-3 as those seem
useful on their own. I'm not entirely convinced about the 'keep tracking' thing
though.

It seems to me you could get the same by opening a second event into the same
buffer and keeping that enabled.


\
 
 \ /
  Last update: 2013-07-16 17:43    [W:0.057 / U:5.936 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site