linuxaudio.org

On Thursday, May 27, 2010, Grant wrote:

quoted text
> I have hrtimer support compiled into my kernel, but when I watch 'top'

> while music is playing I can see that 'timer' uses CPU cycles but

> 'hrtimer' never does.  How can I find out if ALSA is using hrtimer?

>

> - Grant

In addition to Clemens' message, ALSA MIDI sequencer can use several timer

sources. To see which ALSA timers are available, use a command like this:
$ cat /proc/asound/timers
When a program is using the ALSA MIDI sequencer, you can query the timers

assigned to each queue using another command:
$ cat /proc/asound/seq/timer
Alternatively, the utility "drumstick-sysinfo" [1] shows this information

using a friendly format.
Regards,

Pedro
[1] http://sf.net/projects/drumstick

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