Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!

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To: Aaron Krister Johnson <aaron@...>
Cc: Linux-audio-user <linux-audio-user@...>
Date: Monday, June 13, 2011 - 1:02 am

On Sun, Jun 12, 2011 at 8:30 PM, Aaron Krister Johnson
wrote:

> PianoTeq doesn't configure things when jack is running. It just detects and

would it be so hard to just run that very simple command i asked
about? you have absolutely no guarantee that the parameters presented
by Pianoteq translate directly into ALSA driver parameters, though
they probably do. i gave you a very, very simple way to make sure of
this but we still seem to be arguing about whether to run it or not.

JACK requires context switching out of the program woken by the device
driver (jackd) to the client (pianoteq) and back again. This tends to
expose just any weakness in your system setup that relates to process
scheduling. When an app (pianoteq) deals directly with ALSA, this
context switching is avoided. Its very cheap computationally
(relatively speaking), but it is subject to system-induced snafus.

>> yeah, its in the backlog at present. its functionality overlaps quite

well, JACK Session springs to mind. this should be taken up on the
jack mailing list rather than here.
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Messages in current thread:
[LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Aaron Krister Johnson, (Sun Jun 12, 7:40 am)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Aaron Krister Johnson, (Sun Jun 19, 8:46 pm)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Aaron Krister Johnson, (Tue Jun 14, 7:11 am)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Ralf Mardorf, (Tue Jun 14, 11:44 am)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Paul Davis, (Tue Jun 14, 11:30 am)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Lorenzo Sutton, (Wed Jun 15, 8:32 am)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Ralf Mardorf, (Tue Jun 14, 12:43 pm)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Gerhard Zintel, (Tue Jun 14, 11:14 am)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Jeremy Jongepier, (Tue Jun 14, 7:28 am)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Aaron Krister Johnson, (Tue Jun 14, 7:36 am)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Jeremy Jongepier, (Tue Jun 14, 8:00 am)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Paul Davis, (Sun Jun 12, 1:47 pm)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Atte André Jensen, (Sun Jun 12, 9:08 pm)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Aaron Krister Johnson, (Sun Jun 12, 4:49 pm)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Paul Davis, (Sun Jun 12, 8:23 pm)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Aaron Krister Johnson, (Mon Jun 13, 12:31 am)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Paul Davis, (Mon Jun 13, 1:02 am)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Aaron Krister Johnson, (Mon Jun 13, 7:08 am)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Aaron Krister Johnson, (Mon Jun 13, 7:06 am)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Robin Gareus, (Mon Jun 13, 9:54 am)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Igor Brkic, (Sun Jun 12, 12:16 pm)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Ralf Mardorf, (Sun Jun 12, 9:44 am)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Jeremy Jongepier, (Sun Jun 12, 9:59 am)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Ralf Mardorf, (Sun Jun 12, 10:15 am)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, James Warden, (Sun Jun 12, 10:47 am)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Ralf Mardorf, (Sun Jun 12, 12:30 pm)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Aaron Krister Johnson, (Sun Jun 12, 5:08 pm)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Ralf Mardorf, (Sun Jun 12, 6:28 pm)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Ralf Mardorf, (Sun Jun 12, 12:35 pm)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, rosea.grammostola, (Sun Jun 12, 9:36 am)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Aaron Krister Johnson, (Sun Jun 12, 4:45 pm)
Re: [LAU] Jack vs. Alsa, PianoTeq demo: Alsa wins!, Paul Davis, (Sun Jun 12, 8:21 pm)