linux-kernel - Re: Kaffeine problem with CFS

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Date:	Wed, 18 Apr 2007 11:06:06 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Christoph Pfister <christophpfister@...il.com>
Cc:	S.Çağlar Onur <caglar@...dus.org.tr>,
	linux-kernel@...r.kernel.org,
	Michael Lothian <mike@...eburn.co.uk>,
	Christophe Thommeret <hftom@...e.fr>,
	Jurgen Kofler <kaffeine@....net>,
	Ulrich Drepper <drepper@...hat.com>
Subject: Re: Kaffeine problem with CFS


* Ingo Molnar <mingo@...e.hu> wrote:

> these were only the threads that showed up in htop. Here's a full 
> analysis about what all threads are doing:
> 
>  Process 9303: stuck in xine_play()/pthread_mutex_lock()
>  Process 9319:  stuck in pthread_cond_timedwait()
>  Process 9320:  stuck in pthread_cond_timedwait()
>  Process 9321: loop of ~3 msec nanosleeps
>  Process 9322: loop of poll() calls every 335 msecs
>  Process 9323:  stuck in pthread_cond_timedwait()
>  Process 9324: stuck in a loop of 1-second futex-waits + mmap/munmap (malloc)
>  Process 9325:  stuck in pthread_cond_timedwait()
>  Process 9326:  stuck in pthread_cond_timedwait()
>  Process 9327:  stuck in pthread_cond_timedwait()

and here's a top snapshot:

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
 9324 mingo     20   0  300m  59m  17m R 96.4  6.8  21:00.55 kaffeine
 9325 mingo     20   0  300m  59m  17m S  2.0  6.8   0:15.57 kaffeine
 9327 mingo     20   0  300m  59m  17m S  2.0  6.8   0:20.10 kaffeine

so 9324 doing the mpeg decoding seems to be stuck somehow?

	Ingo
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