Subject: Re: [linux-audio-user] low latency
From: Jesse Chappell (jesse_AT_essej.net)
Date: Fri May 16 2003 - 17:58:42 EEST
Joe Hartley wrote on Fri, 16-May-2003:
> > The main problem is that jack writes data to a /tmp file. It has been
> > found that mounting /tmp as tmpfs (in RAM) solves the problems that many
> > people have experienced with lockups while using JACK.
>
> I have been plagued with little xruns for a while now, and couldn't
> figure out why! I'd seen something on using /tmpfs, but for some odd
> reason I thought it was for people using a journalled FS on their root
> filesystem. Duh!
>
> I applied this this morning, and have been recording some things, and
> have not seen a single xrun during recording!!! Woohoooooo! Hopefully
> this puts an end to that little problem.
This is interesting, can you please tell us what your filesystem
configuration is? I am very interested in hearing how this might
help folks with different fs's on /tmp. It was a particularly
dramatic improvement when /tmp was on reiserfs (when I discovered
the problem/solution). If people are seeing xrun problems while
using JACK, I recommend that they try one the options mentioned
in my previous reply email, and let us know the results, and your
fs configuration.
jlc
This archive was generated by hypermail 2b28 : Fri May 16 2003 - 18:56:35 EEST