Messages in this thread | | | Date | Tue, 10 Apr 2012 12:04:09 +0200 | From | Clemens Ladisch <> | Subject | Re: Timing 250 versus 1000 |
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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
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