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Date: Wed, 05 Dec 2001 12:05:50 +0100
Message-ID: <s5hwv02lyep.wl@alsa1.suse.de>
From: Takashi Iwai <tiwai@suse.de>
To: J Sloan <jjs@pobox.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
        Jamie Lokier <lk@tantalophile.demon.co.uk>,
        Jeff Garzik <jgarzik@mandrakesoft.com>,
        Zwane Mwaikambo <zwane@linux.realnet.co.sz>,
        Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: OSS driver cleanups.
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In-Reply-To: <E16BJ58-0002hg-00@the-village.bc.nu>
	<3C0DBD4F.E7AC50A3@pobox.com>
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At Tue, 04 Dec 2001 22:23:11 -0800,
J Sloan wrote:
> 
> Alan Cox wrote:
> 
> > > Not least because I have reports from my housemate that ALSA drivers are
> > > a b*tch to set up.  To be done only if there isn't an OSS driver for
> > > your card.  Whereis with OSS you just load a module and its done.
> >
> > Thats already a "must fix"
> 
> Is the really bad latency reported on this list
> as coming from the alsa drivers also "must fix"?

At the last time I've tried, the bad latency happened only on OSS
emulation.  There must be some small difference of behavior between
OSS and emulation.  Yes, this is "must fix", too.
On ALSA native mode you get even lower latency than OSS.

IIRC the chip reported on lkml is ymfpci - it cannot achieve latency
lower than 256/48000 =  5.33 msec, anyway, due to h/w limit..


Takashi
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