Re: [linux-audio-user] Ardour, Jack, and 2.6 kernels

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Subject: Re: [linux-audio-user] Ardour, Jack, and 2.6 kernels
From: tim hall (tech_AT_glastonburymusic.org.uk)
Date: Fri May 28 2004 - 12:22:37 EEST


Robert Jonsson wrote:
> torsdagen den 27 maj 2004 19.16 skrev cv223_AT_comcast.net:
>>Do most people shut off non-essential daemons during recording sessions, or
>>do any other tricks? This is kinda frustrating, as the CPU load seems
>>rather low (< 15% when the xrun happened). I guess I'll test out reiserfs
>>and even ext2 to see if the filesystem is the culprit.
>
> I actually run fullblown KDE most of the time, it works pretty well at 512x2,
> I can run 256x2 but xruns get more frequent, but not unbearably so. I'm
> mainly running MusE and I seldom get kicked out, but it does happen...
>
> There has been talk on the Jack list from time to time about adding a mode
> where you won't get kicked out so easily even if Jack misses a beat.
> For developing jack I think the current approach is good, the audio equivalent
> of an assert, but for real usage it is a little hard on the user. Especially
> if you are doing a performance, then it's devastating.

It would be SO nice not to be kicked out so easily by Jack, it is often
more of a problem than dropping a few samples, albeit, obviously no-one
wants clicks on their recordings, especially if you just performed the
perfect, unrepeatable take.

> To return to the subject, I hear others use lightweight window managers and do
> stop all unnesesary services to get better stability, if you have problems it
> will probably help.

Godyes! Mind you, I'm running a 600MHz Celeron on 192M RAM, so I've set
up runlevel 5 not to run cron or anything else that is likely to want
attention in the middle of a session, like xscreensaver, for instance. I
also run openbox-3 and do whatever I can to avoid waking up the KDE
leviathan. On a slightly more powerful machine I don't think it would
make so much difference, KDE is resource hungry, but not too attention
seeking :) The services you want to stop are those that would interupt
the nice steady flow of data that you are trying to write to the HD.

cheers

tim hall

--

"You gotta remove part of the shell without breaking the skin, Grandma!"


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