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Scheduling problems ? [ Was: Linux 2.6.26-rc1 ]

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To: Linux-Kernel <linux-kernel@...>
Date: Tuesday, May 6, 2008 - 2:07 am

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, 3:38 pm)
Scheduling problems ? [ Was: Linux 2.6.26-rc1 ], J.A. , (Tue May 6, 2:07 am)
Re: Scheduling problems ? [ Was: Linux 2.6.26-rc1 ], Ingo Molnar, (Tue May 6, 9:11 am)
Re: Linux 2.6.26-rc1, Andreas Mohr, (Mon May 5, 1:39 am)
Re: Linux 2.6.26-rc1, Ingo Molnar, (Mon May 5, 3:30 am)
Re: Linux 2.6.26-rc1, Stephen Rothwell, (Mon May 5, 7:51 pm)
Re: Linux 2.6.26-rc1, Ingo Molnar, (Mon May 5, 8:17 pm)
Re: Linux 2.6.26-rc1, Stephen Rothwell, (Tue May 6, 1:48 am)
Re: Linux 2.6.26-rc1, David Miller, (Mon May 5, 7:55 pm)
Re: Linux 2.6.26-rc1, Stephen Rothwell, (Tue May 6, 1:35 am)
Re: Linux 2.6.26-rc1, David Miller, (Tue May 6, 2:56 am)
Re: Linux 2.6.26-rc1, Stephen Rothwell, (Tue May 6, 3:26 am)
Re: Linux 2.6.26-rc1, Ingo Molnar, (Mon May 5, 8:21 pm)
Re: Linux 2.6.26-rc1, Andrew Morton, (Mon May 5, 8:16 pm)
Re: Linux 2.6.26-rc1, Stephen Rothwell, (Tue May 6, 1:57 am)
Re: Linux 2.6.26-rc1, Mauro Carvalho Chehab, (Mon May 5, 4:14 pm)
Re: Linux 2.6.26-rc1, Ingo Molnar, (Tue May 6, 9:07 am)
Re: Linux 2.6.26-rc1, Ingo Molnar, (Wed May 7, 4:35 am)
Re: Linux 2.6.26-rc1, Jan Engelhardt, (Sun May 4, 2:40 pm)
[patch] sysfs: build fix, Ingo Molnar, (Sun May 4, 3:29 am)
Re: Linux 2.6.26-rc1, Alistair John Strachan, (Sat May 3, 5:47 pm)
Re: Linux 2.6.26-rc1, Alistair John Strachan, (Sat May 3, 5:53 pm)
Re: Linux 2.6.26-rc1, Robin Holt, (Sun May 4, 8:30 am)
Re: Linux 2.6.26-rc1, Alistair John Strachan, (Sun May 4, 9:56 am)
Re: Linux 2.6.26-rc1, Robin Holt, (Sun May 4, 12:09 pm)
Re: Linux 2.6.26-rc1, Mauro Carvalho Chehab, (Mon May 5, 5:04 pm)
Re: Linux 2.6.26-rc1, Alistair John Strachan, (Tue May 6, 4:02 am)
Re: Linux 2.6.26-rc1, Mauro Carvalho Chehab, (Tue May 6, 6:31 am)
Re: Linux 2.6.26-rc1, Stefan Richter, (Tue May 6, 10:34 am)
Re: Linux 2.6.26-rc1, Mauro Carvalho Chehab, (Tue May 6, 3:13 pm)
Re: Linux 2.6.26-rc1, Stefan Richter, (Tue May 6, 3:44 pm)
Re: Linux 2.6.26-rc1, Mauro Carvalho Chehab, (Tue May 6, 4:06 pm)
Re: Linux 2.6.26-rc1, Stefan Richter, (Tue May 6, 4:47 pm)
Re: Linux 2.6.26-rc1, Stefan Richter, (Tue May 6, 7:48 pm)
Re: Linux 2.6.26-rc1, Mauro Carvalho Chehab, (Tue May 6, 6:39 pm)
Re: Linux 2.6.26-rc1, Stefan Richter, (Tue May 6, 7:36 pm)
Re: Linux 2.6.26-rc1, Mauro Carvalho Chehab, (Thu May 8, 8:48 am)
Re: Linux 2.6.26-rc1, Stefan Richter, (Thu May 8, 10:11 am)
Re: Linux 2.6.26-rc1, Stefan Richter, (Tue May 6, 10:54 am)
Re: Linux 2.6.26-rc1, Alistair John Strachan, (Sun May 4, 12:33 pm)
speck-geostationary