#114: Reduce the wakeups for the audio hardware (powertop profiling)
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Reporter: coling | Owner: lennart
Type: enhancement | Status: new
Priority: normal | Milestone:
Component: daemon | Severity: normal
Keywords: |
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While incidentally discussing pulseaudio with someone (Amaranth) on IRC on
#compiz-fusion-dev he mentioned the killing effect on battery life with
pulseaudio.
Using the tool "powertop" I profiled pulseaudio.
The largest culprit seems to be the sound device:
{{{
33.5% (250.4) <interrupt> : uhci_hcd:usb2, HDA Intel
}}}
Killing pulseaudio and those 250 wakeups disappear off the register!
Amaranth reckons it would be hard to get it below 48/second due to 48KHz
audio but still 250 seems pretty high.
Is there anything that can be done?
Col
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Ticket URL: <http://www.pulseaudio.org/ticket/114>
PulseAudio <http://pulseaudio.org/>
The PulseAudio Sound Server
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