lkml.org 
[lkml]   [2013]   [Jul]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [RFC PATCH v2] sched: Limit idle_balance()
From
Date
On Sun, 2013-07-21 at 23:02 +0530, Preeti U Murthy wrote:
> Hi Json,
>
> With V2 of your patch here are the results for the ebizzy run on
> 3.11-rc1 + patch on a 1 socket, 16 core powerpc machine. Each ebizzy
> run was for 30 seconds.
>
> Number_of_threads %improvement_with_patch
> 4 8.63
> 8 1.29
> 12 9.98
> 16 20.46
>
> Let me know if you want me to profile any of these runs for specific
> statistics.

Hi Preeti,

Other numbers that would be interesting to know are the % improvements
when N = 20. That is when I'm getting the bigger performance boosts on
some of the AIM7 workloads.

Would you like to re-run ebizzy with v2 of my patch except replacing
this line of code:
if (idle_duration / 10 < (sd->avg_idle_balance_cost + cost))
with this line of code:
if (idle_duration / 20 < (sd->avg_idle_balance_cost + cost))

Thanks a lot,
Jason



\
 
 \ /
  Last update: 2013-07-22 20:21    [W:0.089 / U:0.496 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site