Other talk about Salix
The pulseaudio service should normally remain disabled. Pulseaudio is started automatically whenever an application requests it.
It definitely isn't. I just did some tests on a VM. With a default 32bit installation (BASIC mode), nothing changed at all and 1024MB of RAM (no swap configured at all), I get this after boot:
Change the VM to have 512MB of RAM I get:
Change the VM to have 256MB of RAM I get:
back to 512MB of RAM and switched to kernel-generic-smp:
You cloud probably lower this a bit more if you disabled a couple of services and boot into init 3 (not having to load lightdm).