lkml.org 
[lkml]   [2011]   [Mar]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] perf probe: Add fastpath to do lookup by function name

* Lin Ming <ming.m.lin@intel.com> wrote:

> ./perf stat -r 10 -- ./perf probe -k /home/mlin/vmlinux \
> -s /home/mlin/linux-2.6 \
> --line csum_partial_copy_to_user > tmp.log
>
> before patch applied
> =====================
> 364.535892 task-clock-msecs # 0.997 CPUs
> 865,862,109 cycles # 2375.245 M/sec
> 1,255,259,630 instructions # 1.450 IPC

> after patch applied
> =====================
> 89.896405 task-clock-msecs # 0.991 CPUs
> 214,553,875 cycles # 2386.679 M/sec
> 226,915,559 instructions # 1.058 IPC

That's a very nice speedup :-)

Thanks,

Ingo


\
 
 \ /
  Last update: 2011-03-24 09:49    [W:0.998 / U:0.048 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site