[pulseaudio-discuss] Any way to get PA to wake up less when playing low latency?

[Dylan Reid]

a profiling run didn't show any hot spots.

Here is the top of the list:

+      2.81%        pacat  [kernel.kallsyms]                  [k] read_hpet

                                    ▒
+      1.75%   pulseaudio  [kernel.kallsyms]                  [k] read_hpet


+      1.75%      swapper  [kernel.kallsyms]                  [k]
acpi_safe_halt

+      1.22%   pulseaudio  [kernel.kallsyms]                  [k]
do_sys_poll

+      0.93%   pulseaudio  [kernel.kallsyms]                  [k]
do_raw_spin_lock

+      0.80%      swapper  [kernel.kallsyms]                  [k] poll_idle

                                    ▒
+      0.76%   pulseaudio  [kernel.kallsyms]                  [k] fget_light

                                   ▒
+      0.67%   pulseaudio  [kernel.kallsyms]                  [k]
sysenter_past_esp

+      0.59%      swapper  [kernel.kallsyms]                  [k]
menu_select

+      0.53%   pulseaudio  [kernel.kallsyms]                  [k]
do_raw_spin_unlock

+      0.51%      swapper  [kernel.kallsyms]                  [k]
hpet_legacy_next_event

+      0.48%   pulseaudio  libpulsecommon-UNKNOWN.UNKNOWN.so  [.]
do_something
...

On Mon, Oct 24, 2011 at 11:56 PM, Maarten Bosmans <mkbosmans at gmail.com>wrote:

> 2011/10/25 Dylan Reid <dgreid at chromium.org>:
> > I'm playing audio with a latency of 10ms.  This is working pretty well,
> but
> > it is eating a lot of CPU
>
> Is it just due to the constant waking up and cocntext switching, or do
> some other functions light up on a profile run?
>
> Maarten
> _______________________________________________
> pulseaudio-discuss mailing list
> pulseaudio-discuss at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/pulseaudio-discuss
>
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