Frank Barknecht wrote:
As I thought, there seems to be a portage for Gentoo, too: http://gentoo-portage.com/sys-apps/realtime-lsm
Just have to pipe up and say three cheers for realtime-lsm. It was a very quick setup on my Gentoo Shuttle PC last night, and the got the latency of my PCI HDSP on that box down from a hideous 4096 frames per period to a wonderful 512 with "almost zero" Xruns. Huzzah! Alongside latest 2.6.10 "love-sources" [mostly MM patches], it's highly recommended.
I'm initiating it at startup with a "modprobe realtime any=1". This means that any user can get realtime priviledge, which is safe enough on a box off the net. But how risky do you think it is when there's an internet connection involved? For example, on a box left alone, hooked up to the web as part of an installation somewhere? You'd probably want to specify a Group or User ID of PD + Jack in that case, right?
d.