Date: Tue, 23 Mar 2004 10:43:10 +0100 From: Pav Lucistnik <pav@FreeBSD.org> To: =?ISO-8859-1?Q?S=F8ren?= Schmidt <sos@DeepCore.dk> Cc: Eirik Oeverby <ltning-freebsd-current@anduin.net> Subject: Re: sound issues in -CURRENT Message-ID: <1080034989.10553.12.camel@pav.hide.vol.cz> In-Reply-To: <405FF4B9.30905@DeepCore.dk> References: <20040309070524.40ad96f5.ryan@slipgate.org> <20040312232251.48c0c57d.ryan@slipgate.org> <405FED9B.3050106@anduin.net> <405FF4B9.30905@DeepCore.dk>
next in thread | previous in thread | raw e-mail | index | archive | help
--=-nLul7uA8qR0QIfPuHPDr
Content-Type: text/plain; charset=iso-8859-4
Content-Transfer-Encoding: quoted-printable
V =FAt, 23. 03. 2004 v 09:26, S=F8ren Schmidt p=ED=B9e:
> > Heavy disk I/O seems to be a trigger for the problem. I always hear the
> > screwups, but i.e. when building mozilla or openoffice (during the
> > extract phase with heavy I/O), sound almost slows down to a complete
> > stop, stutters and hicks and cracks all the time - to a point where the
> > music is almost impossible to even identify anymore.
> I think you are suffering from the high interrupt latency in -current,
> this combined with a soundcard with a small buffer would easily lead to=20
> your problems. A slow disk or PIO mode could also be troublesome in some=20
> cases. You do have witness etc turned off right ?
I hear this too, on both my cards (Soundblaster 128 and onboard AC97
codec). I have all possible debugging turned off. Heavy disc activity
like untarring triggers the symptoms, which sounds like buffer underruns
on the soundcard. Almost sounds like a new ATA stack is really effective
(leaving little CPU cycles for feeding data to soundcard).
--=20
Pav Lucistnik <pav@oook.cz>
<pav@FreeBSD.org>
In God we trust. All others must use the callback verifier.
--=-nLul7uA8qR0QIfPuHPDr
Content-Type: application/pgp-signature; name=signature.asc
Content-Description: Toto je =?iso-8859-2?Q?digit=E1ln=EC?=
=?ISO-8859-1?Q?_podepsan=E1?= =?iso-8859-2?Q?_=E8=E1st?=
=?ISO-8859-1?Q?_zpr=E1vy?=
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.4 (FreeBSD)
iD8DBQBAYAatntdYP8FOsoIRAsZaAKC0guBXlyxYLZ/G5vwEbwImS6UIjQCcDl7j
8h92pRniqj/tENeg2rBGnXc=
=Eo/9
-----END PGP SIGNATURE-----
--=-nLul7uA8qR0QIfPuHPDr--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?1080034989.10553.12.camel>