[alsa-devel] pulseaudio eats 19% CPU power in Fedora 12

[Raymond Yau]

2010/4/19 Daniel Chen <seven.steps at gmail.com>

>  but, like
> Lennart suggests, these are by no means *caused* by PulseAudio.
>
> Best,
> -Dan
>
>
There are other factor affecting CPU usage  significantly

1) the number of pulseaudio clients connected to PA server (i.e. number of
audio stream need to be mixed )
2) the accuracy of system timer and the clock of the sound chip
3) the latency requirement of the different PA clients
4) the resampling method
5) the cpu loading of the system
6) the period time/period size selected by PA server to configure the alsa
driver

why do you ruled out the cause ?

>> If you use "pacat" you can play audio with almost zero CPU
usage

do you get the zero CPU usage in  Ubuntu 9.04/Ubuntu 9.10 with pacat on your
machines ?