Re: Qjackclt cramps

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On 03/08/2012 09:58 AM, thijs van severen wrote:
> 
> 2012/3/8 thijs van severen <thijsvanseveren@xxxxxxxxx
> <mailto:thijsvanseveren@xxxxxxxxx>>
> 
>     2012/3/8 Rui Nuno Capela <rncbc@xxxxxxxxx <mailto:rncbc@xxxxxxxxx>>
> 
>         On 03/07/2012 09:42 PM, Fons Adriaensen wrote:
>             To the facts now: almost every day when I use it, and for
>             the last years, Qjackctl get into some cramp in which it
>             either
> 
>             - refuses to make some connections,
>             - or refuses to show them,
>             - or makes them and then disconnects them immediately.
> 
>             I don't know what triggers this, but it could be related to apps
>             making lots of ports connections in a short time and Qjackctl's
>             idea of current connections getting out of sync with reality.
>             Given Jack's APi for this that is no big surprise, but what
>             really
>             messes up things is that Qjackctl apparently has no means to
>             recover
>             and refresh its connections database from scratch. The only
>             option
>             is to terminate it (which takes Jack and all apps with it,
>             unless
>             Jack was started separately).
> 
> 

[...]

> 
> important remark : i'm running 0.3.7 (havent tested 0.3.8 yet)
> 

I can confirm this behaviour (also qjackctl 0.3.7), I think I have this
problem only with jack1 (which might be related to the fact that jack2
takes ages to complete a port connection, here it takes 18 times as
long, see below).

- Giso


jack 1.9.7

giso@helios:~$ time (for k in system:playback_{1..26}; do jack_connect
system:capture_1 "$k"; done)

real    0m3.729s
user    0m0.056s
sys     0m1.645s

jack 0.121.2

giso@helios:~$ time (for k in system:playback_{1..26}; do jack_connect
system:capture_1 "$k"; done)

real    0m0.198s
user    0m0.031s
sys     0m0.107s
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