Mostly for my own reference: Ubuntu Studio 8.04 and Jack

[solarbird]

I'm not going to work on this right now, because I'm trying to make a CD, not tweak the DAW more, but here're some instructions for optimising Jack on Ubuntu Studio 8.04. I have not done all of this - mostly I still have PulseAudio running. But for future reference: Part 1, Part 2, Part 3.