ailo said : > On 05/23/2011 12:15 AM, Aymeric Mansoux wrote: > >> The 2.6.39 kernel, as you may know, will support the use of rtirq-init > >> script to raise priority for audio devices. For Ubuntu Natty, the kernel > >> used is now 2.6.38. > >> Reliability with low latencies across many systems may need to be > >> determined, but it seems to do ok. > > > > Is there a PPA to test these kernels? > > > > Here is the PPA we have been using for testing linux-lowlatency on Natty. > > ppa:abogani/ppa > > This PPA may disappear soon, but there will be a PPA with a > linux-lowlatency kernel for 11.10 within a few weeks that supports > forced irq-threading. (>2.6.38) > The kernel is a standard Ubuntu kernel, with a few different configs. > > I'm hoping linux-lowlatency will end up in the main repo by the time > 11.10 is released.
Thanks for the info! > However, there is an ambition to create a live image for Ubuntu Studio. > That task has not been properly started yet to my knowledge and is not > planned for any specific release. Don't know what would be needed in > order to adopt that to Ubuntu Studio, but in my view Puredyne's way of > making a live image could just as well be the basis for how it's done > for Ubuntu Studio. Puredyne is built with broth which is a wrapper for Debian Live tools. broth is AGPLv3, patches welcome, fork at will etc ;) Otherwise I think a lot of Ubuntu based live distro do not actually build the system from scratch but use some sort of "remix" tools that make a snapshot of their current setup and turn that into a live version. > On the kernel bit it might be interesting to have more people testing it > to find out how well it performs. > We're going to write a script to compare -lowlatency with -generic. > -generic has been performing quite well, but from doing only a few > tests, -generic seems to work well on only some hardware, while > -lowlatency is comparable or better than an -rt kernel. > The tests have been very simple, so there may be something we are missing. Can you tell us when such a script is available? a. -- http://su.kuri.mu --- Puredyne@goto10.org http://identi.ca/group/puredyne irc://irc.goto10.org/puredyne
