Comment 11 for bug 207135

I'm also in the pulse-rt group, and have disabled all the multicast and discovery options on my running pulseaudio. When in use, pulseaudio (and in this case last-exit, or last.fm) trade places taking up between 2 and 15% each on my 3ghz P4-HT system. I don't have either cpufrequency or powernowd support enabled (not supported).

pulseaudio is also taking a fairly large chunk of memory.

  PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
 1527 mjohanss 9 -11 57744 7580 4416 S 12 0.2 39:14.48 pulseaudio

I've also experienced this level of usage while padevchooser and gnome-volume-manager were disabled (not running). I don't have any open flash applications, and from padevchooser (before closing it) I confirmed that last-exit was the only application with a Play stream.