lkml.org 
[lkml]   [2008]   [Feb]   [13]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: Regression in latest sched-git
FromPeter Zijlstra <>
DateWed, 13 Feb 2008 17:43:13 +0100
On Wed, 2008-02-13 at 22:07 +0530, Dhaval Giani wrote:
> On Wed, Feb 13, 2008 at 10:04:44PM +0530, Dhaval Giani wrote:
> > > > On the same lines, I cant understand how we can be seeing 700ms latency
> > > > (below) unless we had: large number of active groups/users and large number of 
> > > > tasks within each group/user.> > > > > > All I can say it that its trivial to reproduce these horrid latencies.
> > > > > > > Hi Peter,> > > > I've been trying to reproduce the latencies, and the worst I have
> > managed only 80ms. At an average I am getting around 60 ms. This is with
> > a make -j4 as root, and dhaval running other programs. (with maxcpus=1).
> > > > Totally missed here. Any more hints to reproduce?

Not really, this is the recipie I took from Lukas Hejtmanek's report and
it worked for me.

I'll see if I can find some time to try the ftrace patches to narrow
this down.



\
 
 \ /
  Last update: 2008-02-13 17:47    [from the cache]
©2003-2008