Subject: Re: [linux-audio-user] Ardour, Jack, and 2.6 kernels
From: Joe Hartley (jh_AT_brainiac.com)
Date: Fri May 28 2004 - 15:52:13 EEST
On Thu, 27 May 2004 17:16:21 +0000
cv223_AT_comcast.net wrote:
> 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 turn off just about everything that's not related to the recording
process, including NTP, xscreensaver and a few other things. In addition,
I run FluxBox (a lightweight WM) rather than either a GNOME or KDE desktop.
I've also done a lot of work with hdparm to tune the hard drives, and
mount both /tmp and /var/lib/jack/tmp as tmpfs partitions, which helped a
LOT. Oh, and I use reiserfs on the partitions that I record to. You
definitely want to use a journaling filesystem for critical data like this,
and though there's quite a bit of debate on which is better for audio
recording, reiserfs has performed like a champ for me. I haven't had an
xrun during recording for quite a long time now on a 1GHz P3 system with
512MB of RAM, making me a happy guy.
Jan Depner's website at
http://myweb.cableone.net/eviltwin69/ALSA_JACK_ARDOUR.html
is required reading for anyone setting up a Linux-based DAW.
--
======================================================================
Joe Hartley - UNIX/network Consultant - jh_AT_brainiac.com
Without deviation from the norm, "progress" is not possible. - FZappa
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