Re: [linux-audio-user] Running Jack etc as Root?

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Subject: Re: [linux-audio-user] Running Jack etc as Root?
From: Chris Cannam (cannam_AT_all-day-breakfast.com)
Date: Sat May 31 2003 - 21:19:45 EEST


On Saturday 31 May 2003 1:58 pm, Rohan Parkes wrote:
> Is Jack meant to be run as root? I thought it was, but reading the
> thread about jack start-up scripts suggested otherwise.
>
> Howver, if I launch Jack and ladcca as a normal user, ladcca keeps
> complaining that it can't read a folder in the root directory.

jackd does not have to be run as root, and nor does it have to be run
on a kernel with capabilities or whatever.

But you do have to use one of those options if you want it to be able
to use real time scheduling, which is generally considered essential
for really predictable performance.

I personally only ever run it as a non-root user on a kernel without
capabilities support, because I only use audio infrequently and I
don't care a great deal if I get the occasional dropout under heavy
load. I'd much rather that than have jackd or an in-development JACK
application be able to disrupt my entire system. Of course JACK is
not really aimed at users like me, but so long as it works for me
too, that's fine by me.

I don't know anything about ladcca though.

Chris


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