[pulseaudio-tickets] [PulseAudio] #269: Extreme (100%) CPU usage for 44100hz streams
PulseAudio
trac-noreply at tango.0pointer.de
Thu Apr 3 00:34:39 PDT 2008
#269: Extreme (100%) CPU usage for 44100hz streams
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Reporter: devel at irasnyder.com | Owner: lennart
Type: defect | Status: new
Priority: normal | Milestone:
Component: daemon | Severity: major
Keywords: |
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I am using Gentoo ~x86 (unstable) on both my desktop and laptop.
= Overview =
On my desktop, I have the cpu usage problems with 44100hz streams. 48000hz
streams are fine, with normal cpu usage.
On my laptop, I have no cpu usage problems. Both 44100hz and 48000hz
streams use a normal amount of cpu time.
On my desktop, with pulseaudio-0.9.9, I am able to play both 44100hz
streams and 48000hz streams without problems. After upgrading to
pulseaudio-0.9.10, I am able to play 48000hz streams without problems.
Playing a 44100hz stream has the effect of using 100% cpu time, causing
pulseaudio to fail with "cpu softlimit exceeded, terminating".
= Desktop information: =
AMD Athlon XP 2.1Ghz
Soundblaster Audigy, snd_emu10k1 driver
paman shows: default sample type: s16le 6ch 44100hz
= Laptop information: =
Intel Core Duo 1.83Ghz
Intel integrated audio, snd_hda_intel driver
paman shows: default sample type: s16le 2ch 44100hz
= Configuration changes on my desktop: =
daemon.conf -- default-sample-channels = 6
In the move from 0.9.9 to 0.9.10, I changed default.pa to use hal
autodetect instead of:
load-module module-alsa-sink device=plug:surround51 channels=6
All tests were done using various music and movies I have, using mplayer.
I am happy to provide more information as needed.
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Ticket URL: <http://pulseaudio.org/ticket/269>
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