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From: Takashi Iwai <tiwai@suse.de>
To: Ed Sweetman <ed.sweetman@wmich.edu>
Cc: Christian Axelsson <smiler@lanil.mine.nu>,
	Lukas Kolbe <lucky@knup.de>,
	linux-kernel@vger.kernel.org
Subject: Re: 2.6.0-test1-mm2 music skips
Date: Mon, 21 Jul 2003 16:21:50 +0200	[thread overview]
Message-ID: <s5h65lwj6yp.wl@alsa2.suse.de> (raw)
In-Reply-To: <3F1B4027.2010301@wmich.edu>

At Sun, 20 Jul 2003 21:21:43 -0400,
Ed Sweetman wrote:
> 
> Christian Axelsson wrote:
> > On Sun, 2003-07-20 at 22:34, Lukas Kolbe wrote:
> > 
> > Please read the O*int threads.
> > It's probably Con's new scheduler that is causing these problems.
> > If you are using alsa, try the OSS emulation as it seems to help abit.
> > 
> 
> I've been using the 2.5 kernel for a long time now and the 2.4 kernel 
> since it was just turned into 2.3. There have been these "problems" 
> since 2.3, this is not something new caused by any new schedulers. The 
> schedulers can cause problems, no doubt, but they also make userspace 
> programming issues apparent. The fact that going to oss emu only proves 
> that this is mostly a userspace problem. ALSA drivers have to be coded 
> with much more attention to latency because it's very specific about 
> being run on time. You can only send it a small amount of data every 
> write you make to the soundcard.

well, just a small correction: it's ALSA output plugin of xmms, not
ALSA drivers.  it uses the hardware buffer directly (or mmapped) while
xmms OSS output plugin has much larger internal buffers.


Takashi

      reply	other threads:[~2003-07-21 14:06 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-07-20 20:34 2.6.0-test1-mm2 music skips Lukas Kolbe
2003-07-20 21:12 ` Ed Sweetman
2003-07-20 21:56   ` Lukas Kolbe
2003-07-20 23:35   ` Antonio Vargas
2003-07-20 23:47 ` Christian Axelsson
2003-07-21  1:21   ` Ed Sweetman
2003-07-21 14:21     ` Takashi Iwai [this message]

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