* Peter P. p8...@aol.com [2014-01-28 00:35]:
* Miller Puckette m...@ucsd.edu [2014-01-28 00:02]:
Probably that's so - but Pd should still be able to deal with the mismatch.
OTOH, since Pd is built-in 64 blocksize, you wouldn't be able to reduce Pd's
latency by reducing jack's blocksize
OK... that's really quite strange indeed. FWIW the 'mmap' alsa code, as
far as I know, is only selected for RME devices. I don't have any of those
handy so have little way to check any of this on my end. It was written by
Winfried Ritsch a decade or more ago :)
Miller
Made a latency test
hi,
in my quest of lowering my round-trip latency, I am configuring Jack with:
periods (buffer size): 32; nperiods: 2 / 3 (doesn't matter); rate 48000
when starting pd -rt -jack -channels 2 (-nosleep) = doesn't start.
other applications like amsynth, JAMin doesn't have this behaviour
(they
* pured...@11h11.com pured...@11h11.com [2014-01-27 19:54]:
hi,
in my quest of lowering my round-trip latency, I am configuring Jack with:
periods (buffer size): 32; nperiods: 2 / 3 (doesn't matter); rate 48000
when starting pd -rt -jack -channels 2 (-nosleep) = doesn't start.
other
pd -rt -jack -channels 2
priority 6 scheduling enabled.
priority 8 scheduling enabled.
Partial read
Partial read
...
pd: malloc.c:3822: _int_malloc: Assertion `(unsigned long)(size) =
(unsigned long)(nb)' failed.
Pd: signal 6
psc@pscbox:~$ pdsend errorname: error writing sock8: broken pipe
* pured...@11h11.com pured...@11h11.com [2014-01-27 21:24]:
pd -rt -jack -channels 2
priority 6 scheduling enabled.
priority 8 scheduling enabled.
Partial read
Partial read
...
pd: malloc.c:3822: _int_malloc: Assertion `(unsigned long)(size) =
(unsigned long)(nb)' failed.
Pd: signal 6
Probably that's so - but Pd should still be able to deal with the mismatch.
OTOH, since Pd is built-in 64 blocksize, you wouldn't be able to reduce Pd's
latency by reducing jack's blocksize below 64.
I'm not sure about this, but I believe that Pd running standalone (using ALSA
driver) can achieve
* Miller Puckette m...@ucsd.edu [2014-01-28 00:02]:
Probably that's so - but Pd should still be able to deal with the mismatch.
OTOH, since Pd is built-in 64 blocksize, you wouldn't be able to reduce Pd's
latency by reducing jack's blocksize below 64.
Allright, then I can live without going
