Date: Sun, 19 Mar 2000 16:38:04 -0000 From: "Cameron Grant" <gandalf@vilnya.demon.co.uk> To: "Conrad Sabatier" <conrads@home.com>, <stable@freebsd.org> Cc: <multimedia@freebsd.org> Subject: Re: Suggestions for improving newpcm performance? Message-ID: <001a01bf91c1$7f62a4b0$0304020a@NENYA> References: <XFMail.000319101038.conrads@home.com>
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> As I mentioned in another post, since upgrading to 4.0 and converting from
> Voxware to newpcm, I've noticed quite a significant degradation in audio
> performance. Whereas my MP3s used to play smoothly until the system load
> reached a really high level, now I'm getting breakup even with minimal
> system loads (on a 166MHz P5).
define breakup? noise, or pausing?
> Any ideas on how I might improve performance? I've already disabled ATAPI
> DMA (my system is pure IDE), thinking there may have been a conflict, and
> am using softupdates as well, but still, anytime the system load increases
> even slightly, I notice some chop.
what you are seeing is probably spl-related. spls are going away
in -current, which will improve concurrency greatly.
the situation with voxware is that it will remain in 4.x, but unless a
maintainer comes forward who will convert it to newbus, in -current it will
soon be toast.
- cg
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