On Fri, 16.11.07 21:57, Ahmed Kamal (email.ahmedkamal@xxxxxxxxxxxxxx) wrote: > Hi, > Thanks for the reply. I can confirm terminating firefox brought CPU usage of > pulseaudio down to 0% in top. Also, playing an mp3 through amarok, brought > CPU usage back to 6%. So it seems any playback brings the CPU usage up by > that much! > My sound card is Intel ICH6 chipset ALC861. Is resampling required ? Is it > possible to play at the card's native sample rate to gain back the CPU > cycles, since I almost always have the browser open with Flash in it :/ Flash is fixed to 44100 Hz. Apparently your card is fixed to 48000 Hz (you can check by running "pacmd" and typing "list-sinks"). So, in effect resampling is *required* to take place. There's no way around it. I wouldn't really think about this much. Don't forget, if PA wouldn't do the resampling the player (or libasound) would need to do it. So it's just a shuffling of which process does which job that make PA eat 6% CPU. If you feel that the resampling takes to much CPU, than you're welcome to sit down and add some real MMX/SSE support to the speex resampler, which is the one we're using. ;-) Lennart -- Lennart Poettering Red Hat, Inc. lennart [at] poettering [dot] net ICQ# 11060553 http://0pointer.net/lennart/ GnuPG 0x1A015CC4 -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
