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. > It would be nice to know what is the current status and roadmap of > Ubuntu Studio as well, so we could see if there are any overlap. > I believe at this point there is not much of an overlap. Ubuntu Studio will likely be based on Xubuntu. Not many people are working on that, and I suppose there is a very good chance there will be quite a lot of bloat. Also, the future for Ubuntu Studio and the use of XFCE is not certain. Not even for the release of 11.10. This could of course change with time. 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. So, on those two things - the kernel, and the live image - I can see a reason for cooperation. 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. I suppose that's it.. > > a. > -- > http://su.kuri.mu > > --- > Puredyne@goto10.org > http://identi.ca/group/puredyne > irc://irc.goto10.org/puredyne -- ailo --- Puredyne@goto10.org http://identi.ca/group/puredyne irc://irc.goto10.org/puredyne
