linuxaudio.org

2010/2/2 Jörn Nettingsmeier :

quoted text
> hi everyone!

>

>

> here's a question for sysadmin type low-latency adepts:

>

> i have a general-purpose notebook that doubles as a lean and mean

> recording machine. it's opensuse, which means it works nicely with most

> bells and whistles, but it also has an awful lot of questionable stuff

> running that interferes with stable low-latency performance.

>

> so i usually boot into a ll kernel and kill everything i don't need for

> the duration of a session.

> to ease that job, i have put the (unused) runlevel 4 back to work:

> basically i copied rc5.d into rc4.d and ruthlessly deleted everything i

> don't want. now "sudo telinit 4" will slim down my process list.

>

> since the runlevel corresponds with the need for a ll kernel, i wonder:

> is there any way to tell the kernel (via grub) to tell init to ignore

> the initdefault in /etc/inittab and go directly to runlevel $FOO?

>

> and while we're there, doing a kexec instead of a warm reboot would be

> so sexy - has anyone played with that yet?

Yep, append the runlevel number.
Yep, it's faster. But it's a little troublesome and I was always wary,

because I had to adapt my system's shutdown script to tag along with

kexec.
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