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

Raymond Yau superquad.vortex2 at gmail.com
Tue Apr 20 07:36:07 CEST 2010

2010/4/19 Lennart Poettering <mznyfn at 0pointer.de>

> Yes, sure. If you use "pacat" you can play audio with almost zero CPU
> usage, because it is one of the few clients that actually asks for
> sensible latency (2s), which allows us to minimize the wakeup intervals
> to less than a second.
> Lennart
Just test it on Fedora 10

CPU usage of pulseuadio is above 3% when using pacat

CPU usage of pulseaudio is below 2% when using aplay

CPU usage of pulseaudio is below 3% when using paplay

the test audio is stereo 44100Hz pcm wav

Do you have any figures on Fedora 12 or 13 ?

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