Scheduling problems ? [ Was: Linux 2.6.26-rc1 ]

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From: J.A.
Date: Monday, May 5, 2008 - 11:07 pm

Hi...

I have installed this kernel, and it behaves a bit strange.

If I launch a movie under totem, it plays nicely (no HD, just 512x384).
If then I start deluge with some torrents downloading, the video begins to
loose frames and jump, like loosing 1 or 2 frames per second.
There is not much bandwidth used, just 15-20 Kb.

I have tried the same copying a kernel source tree and the video plays fine.
So can it be something network related, os network+io to disk ?

No group scheduling, 1000Hz, fully preemptive kernel.
If you smell something and need my .config I will post it.

TIA

-- 
J.A. Magallon <jamagallon()ono!com>     \               Software is like sex:
                                         \         It's better when it's free
Mandriva Linux release 2008.1 (Cooker) for i586
Linux 2.6.23-jam05 (gcc 4.2.2 20071128 (4.2.2-2mdv2008.1)) SMP PREEMPT
--
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Messages in current thread:
Linux 2.6.26-rc1, Linus Torvalds, (Sat May 3, 12:38 pm)
Re: Linux 2.6.26-rc1, Alistair John Strachan, (Sat May 3, 2:47 pm)
Re: Linux 2.6.26-rc1, Alistair John Strachan, (Sat May 3, 2:53 pm)
[patch] sysfs: build fix, Ingo Molnar, (Sun May 4, 12:29 am)
Re: Linux 2.6.26-rc1, Robin Holt, (Sun May 4, 5:30 am)
Re: Linux 2.6.26-rc1, Alistair John Strachan, (Sun May 4, 6:56 am)
Re: Linux 2.6.26-rc1, Robin Holt, (Sun May 4, 9:09 am)
Re: Linux 2.6.26-rc1, Alistair John Strachan, (Sun May 4, 9:33 am)
Re: Linux 2.6.26-rc1, Jan Engelhardt, (Sun May 4, 11:40 am)
Re: Linux 2.6.26-rc1, Andreas Mohr, (Sun May 4, 10:39 pm)
Re: Linux 2.6.26-rc1, Ingo Molnar, (Mon May 5, 12:30 am)
Re: Linux 2.6.26-rc1, Mauro Carvalho Chehab, (Mon May 5, 1:14 pm)
Re: Linux 2.6.26-rc1, Mauro Carvalho Chehab, (Mon May 5, 2:04 pm)
Re: Linux 2.6.26-rc1, Stephen Rothwell, (Mon May 5, 4:51 pm)
Re: Linux 2.6.26-rc1, David Miller, (Mon May 5, 4:55 pm)
Re: Linux 2.6.26-rc1, Andrew Morton, (Mon May 5, 5:16 pm)
Re: Linux 2.6.26-rc1, Ingo Molnar, (Mon May 5, 5:17 pm)
Re: Linux 2.6.26-rc1, Ingo Molnar, (Mon May 5, 5:21 pm)
Re: Linux 2.6.26-rc1, Stephen Rothwell, (Mon May 5, 10:35 pm)
Re: Linux 2.6.26-rc1, Stephen Rothwell, (Mon May 5, 10:48 pm)
Re: Linux 2.6.26-rc1, Stephen Rothwell, (Mon May 5, 10:57 pm)
Scheduling problems ? [ Was: Linux 2.6.26-rc1 ], J.A. , (Mon May 5, 11:07 pm)
Re: Linux 2.6.26-rc1, David Miller, (Mon May 5, 11:56 pm)
Re: Linux 2.6.26-rc1, Stephen Rothwell, (Tue May 6, 12:26 am)
Re: Linux 2.6.26-rc1, Alistair John Strachan, (Tue May 6, 1:02 am)
Re: Linux 2.6.26-rc1, Mauro Carvalho Chehab, (Tue May 6, 3:31 am)
Re: Linux 2.6.26-rc1, Ingo Molnar, (Tue May 6, 6:07 am)
Re: Scheduling problems ? [ Was: Linux 2.6.26-rc1 ], Ingo Molnar, (Tue May 6, 6:11 am)
Re: Linux 2.6.26-rc1, Stefan Richter, (Tue May 6, 7:34 am)
Re: Linux 2.6.26-rc1, Stefan Richter, (Tue May 6, 7:54 am)
Re: Linux 2.6.26-rc1, Mauro Carvalho Chehab, (Tue May 6, 12:13 pm)
Re: Linux 2.6.26-rc1, Stefan Richter, (Tue May 6, 12:44 pm)
Re: Linux 2.6.26-rc1, Mauro Carvalho Chehab, (Tue May 6, 1:06 pm)
Re: Linux 2.6.26-rc1, Stefan Richter, (Tue May 6, 1:47 pm)
Re: Linux 2.6.26-rc1, Mauro Carvalho Chehab, (Tue May 6, 3:39 pm)
Re: Linux 2.6.26-rc1, Stefan Richter, (Tue May 6, 4:36 pm)
Re: Linux 2.6.26-rc1, Stefan Richter, (Tue May 6, 4:48 pm)
Re: Linux 2.6.26-rc1, Ingo Molnar, (Wed May 7, 1:35 am)
Re: Linux 2.6.26-rc1, Mauro Carvalho Chehab, (Thu May 8, 5:48 am)
Re: Linux 2.6.26-rc1, Stefan Richter, (Thu May 8, 7:11 am)