lkml.org 
[lkml]   [2013]   [Oct]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] perf, x86: Optimize intel_pmu_pebs_fixup_ip()
On Fri, Oct 25, 2013 at 12:33:03PM -0400, Don Zickus wrote:
> Hi Peter,
>
> I finally had a chance to run this on my machine. From my testing, it
> looks good. Better performance numbers. I think my longest latency went
> from 300K cycles down to 150K cycles and very few of those (most are under
> 100K cycles).
>
> I also don't see perf throttling me down to 1500 samples, it stops around
> 7000. So I see progress with this patch. :-)

Awesome.. I'll write up a proper patch when I'm back home.


\
 
 \ /
  Last update: 2013-10-25 20:01    [W:0.362 / U:0.072 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site