lkml.org 
[lkml]   [2011]   [Jan]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: 'autogroup' sched code KILLING responsiveness
On Fri, Jan 21, 2011 at 16:27, Mike Galbraith <efault@gmx.de> wrote:
> On Fri, 2011-01-21 at 10:20 -0800, Michael Witten wrote:
>> Bisecting shows that this commit:
>>
>>   5091faa449ee0b7d73bc296a93bca9540fc51d0a
>>   sched: Add 'autogroup' scheduling feature: automated per session task groups
>>   Date:   Tue Nov 30 14:18:03 2010 +0100
>>
>> is the reason that my computer has become unusable.
>>
>> With that code in place, a resource-intensive activity (such as
>> compiling the Linux kernel) causes my computer to become
>> unresponsive for many seconds at a time; the entire screen
>> does not refresh, typed keys are dropped or are handled very
>> late, etc (even in Linux's plain virtual consoles).
>
> That's not what I'm experiencing with a UP kernel...

Before I try to gather any data, I'd like to point out that the
problem disappears when I disable CONFIG_SCHED_AUTOGROUP (General
setup -> Automatic process group scheduling).

Do you have it disabled?
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2011-01-21 23:41    [W:0.166 / U:21.848 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site