Hi all,
I've been stepping through the pd source and trying to understand the scheduling system, would anyone who knows mind helping me to this effect?
There are two options that m_mainloop() has for scheduling, m_pollingscheduler() and m_callbackscheduler(). On OS X, I am only getting a hit on m_pollingscheduler, since sched_useaudio = SCHED_AUDIO_POLL. Does sched_useaudio ever equal SCHED_AUDIO_CALLBACK, which would then cause m_callbackscheduler() to be used instead?
I'm wondering if sched_tick() is ever called from a non-main thread.
Cheers, Rich
I think that stuff is the polling versus callback scheduling when talking to the audio device. If you look in the audio preferences, there is a check box that says "use callbacks". My guess is that will enable m_callbackscheduler().
.hc
On Oct 8, 2011, at 11:39 PM, Rich E wrote:
Hi all,
I've been stepping through the pd source and trying to understand the scheduling system, would anyone who knows mind helping me to this effect?
There are two options that m_mainloop() has for scheduling, m_pollingscheduler() and m_callbackscheduler(). On OS X, I am only getting a hit on m_pollingscheduler, since sched_useaudio = SCHED_AUDIO_POLL. Does sched_useaudio ever equal SCHED_AUDIO_CALLBACK, which would then cause m_callbackscheduler() to be used instead?
I'm wondering if sched_tick() is ever called from a non-main thread.
Cheers, Rich _______________________________________________ Pd-dev mailing list Pd-dev@iem.at http://lists.puredata.info/listinfo/pd-dev
----------------------------------------------------------------------------
"A cellphone to me is just an opportunity to be irritated wherever you are." - Linus Torvalds
Ah thanks for pointing that out, Hans.
m_callbackscheduler() is soooo much more simple than m_pollingscheduler(), I'm wondering what the performance differences are..
Cheers, Rich
On Sun, Oct 9, 2011 at 4:26 PM, Hans-Christoph Steiner hans@at.or.atwrote:
I think that stuff is the polling versus callback scheduling when talking to the audio device. If you look in the audio preferences, there is a check box that says "use callbacks". My guess is that will enable m_callbackscheduler().
.hc
On Oct 8, 2011, at 11:39 PM, Rich E wrote:
Hi all,
I've been stepping through the pd source and trying to understand the scheduling system, would anyone who knows mind helping me to this effect?
There are two options that m_mainloop() has for scheduling, m_pollingscheduler() and m_callbackscheduler(). On OS X, I am only getting a hit on m_pollingscheduler, since sched_useaudio = SCHED_AUDIO_POLL. Does sched_useaudio ever equal SCHED_AUDIO_CALLBACK, which would then cause m_callbackscheduler() to be used instead?
I'm wondering if sched_tick() is ever called from a non-main thread.
Cheers, Rich ______________________________**_________________ Pd-dev mailing list Pd-dev@iem.at http://lists.puredata.info/**listinfo/pd-devhttp://lists.puredata.info/listinfo/pd-dev
------------------------------**------------------------------**
"A cellphone to me is just an opportunity to be irritated wherever you are." - Linus Torvalds
-
Hans-Christoph Steiner -
Rich E