Re: [linux-audio-dev] ALSA performance issues?

From: Clemens Ladisch <cladisch@email-addr-hidden>
Date: Thu Dec 21 2006 - 17:07:27 EET

Mario Lang wrote:
> I just tried to get sound working on a LinkSys NSLU2 (ARM) running
> Debian Etch using a USB sound card.
>
> What I discovered I find pretty strange, and would like to know some
> more details. Apparently, all ALSA native clients don't
> manage to play sound click-free, they actually have underruns all the
> time. However, if I use OSS (via the snd-pcm-oss module) and set
> libao to use the oss driver, I get perfect playback with about
> 20% CPU use at maxiumum by the user-space app playing/decoding files.

Does the same happen when ALSA clients play to device "hw:0" as
opposed to the default dmix device?

Regards,
Clemens
Received on Thu Dec 21 20:15:03 2006

This archive was generated by hypermail 2.1.8 : Thu Dec 21 2006 - 20:15:04 EET