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** Changed in: pulseaudio (Ubuntu)
Status: Fix Committed => Incomplete
** Changed in: alsa-lib (Ubuntu)
Status: Fix Committed => Invalid
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https://bugs.launchpad.net/bugs/329896
Title:
Pulseaudio network sinks overload CPU
Status in “alsa-lib” package in Ubuntu:
Invalid
Status in “pulseaudio” package in Ubuntu:
Incomplete
Bug description:
Binary package hint: pulseaudio
Description: Ubuntu jaunty (development branch)
Release: 9.04
Trying to use network sinks with Pulseaudio causes unacceptable CPU
load on both ends.
To reproduce, you need 2 machines on a LAN.
It's most obvious if you run 'top' on both machines while doing the following:
1) On machine 1 use paprefs to enable the following 3 options:
Enable network access to local sound devices
Allow other machines on the LAN to discover local sound devices
Don't require authentication
2) On machine 2 use paprefs to enable the option
Make discoverable network sound devices available locally
Now, on machine 2, open pavucontrol. Watch the CPU usage of
'pulseaudio' on both machines rise and rise. On one of my machines it
maxes out the CPU and pulseaudio quits.
Until recently I was using Ubuntu 8.10 on both these machines and
didn't have this problem. CPU usage of pulseaudio barely registered.
I can't see this being an ALSA issue because no audio is playing at
the time.
pulseaudio:
Installed: 0.9.14-0ubuntu5
Candidate: 0.9.14-0ubuntu5
Version table:
*** 0.9.14-0ubuntu5 0
500 http://gb.archive.ubuntu.com jaunty/main Packages
100 /var/lib/dpkg/status
uname -a
Linux hoss 2.6.28-7-generic #20-Ubuntu SMP Mon Feb 9 15:42:34 UTC 2009 x86_64
GNU/Linux
Seen on x86_64 and i386 installations.
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