Re: Timing 250 versus 1000

From: Alex Stone
Date: Tue Apr 10 2012 - 11:50:14 EST


On 04/10/2012 02:04 PM, Clemens Ladisch wrote:
Alex Stone wrote:
On 04/08/2012 05:08 PM, Clemens Ladisch wrote:
Alex Stone wrote:
those of us who write a lot of midi driven work, we're still more or
less required to use some sort of RT kernel to get any degree of
playback timing accuracy.
The ALSA sequencer timer stopped using the system timer years ago.
And the difference between RT and 'normal' kernels is not the timer
frequency.
I'm using jack with seq, so are you saying the ALSA sequencer timer is
using a higher timer rate than than is set in the kernel,
It's using different timers (RTC or hrtimer), which support higher
precision.

and there's no need for me to bother with this,
Yes. If you want to be sure, check that G3 appears in /proc/asound/timers
when you're using the sequencer.


Regards,
Clemens
It does.

Thanks for the info.

Regards,
Alex.
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