Re: [LAU] Important test:SOLUTION !!!

Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]
To: Ken Restivo <ken@...>
Cc: <linux-audio-user@...>
Date: Sunday, September 16, 2007 - 1:06 pm

On Sat, 2007-09-15 at 21:18 -0700, Ken Restivo wrote:

jackd will always stand a good chance of causing a glitch whenever
anything is done that requires taking a lock on the "graph" (the set of
ports it is currently managing). this includes adding/removing ports,
but it also includes checking current connections.

i don't know why geoff has this option selected - its not on by default,
and for sure, every time you check the current graph state you stand a
good, though not guaranteed, chance of causing an xrun. qjackctl will
refresh its view of things every time jackd notifies it of a graph
change, which is basically what everybody wants. there will be a click
then too, but since this only happens when adding/removing ports or
clients, its not really out of the realm of the expected.

i've never even seen this option till i went to look for it, and sure
enough on my system, which runs at 128 frames/period without an RT
kernel and almost no xruns, it causes audible clicks every time the
auto-refresh happens. its a pointless option as far as i can see, and
should probably be removed/made insensitive unless qjc knows that
jackdmp is in use (which i think (but am not sure) is free of this
problem).

--p

Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]

Messages in current thread:
[LAU] [music] recent ideas, julien lociuro, (Sat Sep 15, 2:39 am)
Re: [LAU] [music] recent ideas, Thorsten Wilms, (Sat Sep 15, 5:22 pm)
[LAU] Important test:, Geoff Beasley, (Sat Sep 15, 4:04 am)
Re: [LAU] Important test:, Florian Schmidt, (Sat Sep 15, 11:45 pm)
Re: [LAU] Important test:SOLUTION !!!, Geoff Beasley, (Sun Sep 16, 3:08 am)
Re: [LAU] Important test:SOLUTION !!!, Ken Restivo, (Sun Sep 16, 4:19 am)
Re: [LAU] Important test:SOLUTION !!!, Paul Davis, (Sun Sep 16, 1:06 pm)
Re: [LAU] Important test:, James Stone, (Sat Sep 15, 11:02 am)
Re: [LAU] Important test:, Wolfgang Woehl, (Sat Sep 15, 10:48 am)
Re: [LAU] Important test:, Fons Adriaensen, (Sat Sep 15, 3:51 pm)
Re: [LAU] Important test:, James Stone, (Sat Sep 15, 11:01 am)
Re: [LAU] Important test:, Wolfgang Woehl, (Sat Sep 15, 11:18 am)
Re: [LAU] Important test:, Geoff Beasley, (Sat Sep 15, 10:08 pm)
Re: [LAU] Important test:, Geoff Beasley, (Sat Sep 15, 10:55 pm)
Re: [LAU] Important test:, david, (Sat Sep 15, 6:18 am)