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From: Ingo Molnar <mingo@elte.hu>
To: "Michael J. Cohen" <mjc@unre.st>
Cc: sboyce@blueyonder.co.uk, linux-kernel@vger.kernel.org
Subject: Re: [patch] Real-Time Preemption, -RT-2.6.10-rc1-mm2-V0.7.7
Date: Sat, 6 Nov 2004 08:36:04 +0100	[thread overview]
Message-ID: <20041106073604.GC8285@elte.hu> (raw)
In-Reply-To: <1099684431.7964.6.camel@optie.uni.325i.org>


* Michael J. Cohen <mjc@unre.st> wrote:

> > hm, have you chrt-ed the soundcard IRQ to a fifo priority higher than
> > 50?

> on my x86-64, there doesn't seem to be an irq for snd-intel8x0.
> 
> optie ~ # cat /proc/interrupts 

> 185:     286001   IO-APIC-level  libata, ehci_hcd, ohci_hcd, ohci_hcd
> 193:      37964   IO-APIC-level  AMD AMD8111

perhaps this IRQ 193 one? Stupid question: there is sound coming out of 
the speakers, right?

> ps ax doesn't seem to show anything sound-related except jackd so I
> tried chrt -f 75 jackd -R -d alsa -P -HMm -z s -o 6
> 
> result during an emerge metadata on V0.7.13:
> 
> **** alsa_pcm: xrun of at least 133.973 msecs
> **** alsa_pcm: xrun of at least 78.544 msecs
> **** alsa_pcm: xrun of at least 245.494 msecs
> 
> *much* better but we're shooting for 0 xruns, no?

yeah, we are.

	Ingo

  reply	other threads:[~2004-11-06  7:35 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-11-03 17:08 [patch] Real-Time Preemption, -RT-2.6.10-rc1-mm2-V0.7.7 Sid Boyce
2004-11-03 18:51 ` K.R. Foley
2004-11-04  0:00   ` Sid Boyce
2004-11-04  1:40     ` K.R. Foley
2004-11-04  9:59       ` Michael J. Cohen
2004-11-04 10:06       ` Ingo Molnar
2004-11-04 10:23         ` Michael J. Cohen
2004-11-04 11:17           ` Ingo Molnar
2004-11-04 11:17           ` Michael J. Cohen
2004-11-04 11:45             ` Ingo Molnar
2004-11-04 12:59               ` Michael J. Cohen
2004-11-04 13:34                 ` Michael J. Cohen
2004-11-04 14:05                   ` Ingo Molnar
2004-11-04 14:13                     ` Michael J. Cohen
2004-11-04 14:23                       ` Ingo Molnar
2004-11-04 18:31                         ` Michael J. Cohen
2004-11-04 19:38                           ` Ingo Molnar
2004-11-05 12:16                             ` Sid Boyce
2004-11-05 19:53                             ` Michael J. Cohen
2004-11-06  7:36                               ` Ingo Molnar [this message]
2004-11-04 12:53         ` Sid Boyce
  -- strict thread matches above, loose matches on Subject: below --
2004-11-03 20:40 [patch] Real-Time Preemption, -RT-2.6.10-rc1-mm2-V0.7.1 Mark_H_Johnson
2004-11-04  0:17 ` [patch] Real-Time Preemption, -RT-2.6.10-rc1-mm2-V0.7.7 Rui Nuno Capela

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