28 May
2010
28 May
'10
4:07 p.m.
On Thursday, May 27, 2010, Grant wrote:
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