[linux-audio-user] Re: Current merrits of tmpfs with Jack

Jesse Chappell jesse at essej.net
Sat Jan 7 09:57:06 EST 2006

On 1/7/06, Russell Hanaghan <hanaghan at starband.net> wrote:

>       Prerequisites
>     * 2.4, 2.5 or 2.6 series kernel with tmpfs turned on (CONFIG_TMPFS)
>     * Shared memory file system mounted on /dev/shm. add the following
>       to /etc/fstab to get it mounted at boot:
>         shmfs       /dev/shm     shm    defaults        0       0
>       (Note: you may have to make the /dev/shm directory)
> <unsnip>
> Is this the actual use of /dev/shm or can it serve dual purpose and be
> also set up as tmpfs for fifo's?

Yes this is the actual use of /dev/shm.  In many distros you will find
such a line already in the /etc/fstab.  And yes, it can serve dual

> Or...
> |# mkdir /mnt/ramfs|
> [edit /etc/fstab and add the following line]
> |none /mnt/ramfs tmpfs defaults 0 0|
> Then use --with-default-tmpdir=/mnt/ramfs to the JACK configure line
> when you build it. No clients need to be recompiled.

This is just an older alternative, not better.


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