lkml.org 
[lkml]   [2008]   [Nov]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: busted CFS group load balancer?
From
On Mon, Nov 17, 2008 at 7:37 AM, Chris Friesen wrote:
>> It appears that the fair-group load balancer in 2.6.27 does not work
>> properly.
>
> There was an issue fixed post 2.6.27 where the load balancer didn't work
> properly if there was one task per group per cpu. You might try
> backporting commit 38736f4 and see if that helps.

On Mon, Nov 17, 2008 at 12:04 PM, Ken Chen wrote:
> Tested git commit 38736f4, it doesn't fix the problem I'm seeing.

I would also like to mention that commit 38736f4 has stability
problems. I put a kernel with this commit on several test machines,
and several of them had hard lockups within 2 hours of testing. I
wasn't doing anything fancy. The workload was pure 'while (1)' loop.
Though there are other background services running on those machines.

- Ken


\
 
 \ /
  Last update: 2008-11-18 08:59    [W:0.115 / U:1.008 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site