On Fri, 13 Jan 2017 08:52:15 +0100, Alexander Dahl wrote: >Ubuntu Studio Hi, I'm an Arch Linux user, but I'm helping users with Ubuntu flavours, including Ubuntu Studio. The Ubuntu repositories provide a so called "lowlatency" kernel, without the rt patch. I doubt that this is much better than a vanilla kernel with threadirqs as boot option. It's easy to build the linux-rt packages for Ubuntu flavours, but Ubuntu Studio has got other pitfalls, too. Ubuntu Studio is a distro for artists, it's not optimised for musicians. The default is a jackdbus-pulseaudio mix/mess. While I'm an Arch user, I anyway set up a tailored Ubuntu install, based upon a minimal install from a server image. The Ubuntu policy is to start all services provided by package, so the user needs to disable all unwanted services, even when starting with a minimal install, but at least such an install doesn't come with pulseaudio and you could chose jackd instead of jackdbus. I recommend against Ubuntu Studio, if a user should be unwilling to check everything on her own and unwilling to set up everything on her own. You even can't be sure that somebody really cares that rtirq and the used kernel fit to each other. Btw. there's nothing wrong with even using a vanilla kernel with threadirqs as boot option. In regards to audio latency and MIDI jitter there are a lot of things to consider, e.g. unbinding USB ports that share unfavourable IRQs, caring about the CPU frequency handling ... In my more than a decade of Linux audio experiences IMO the best approach is to set up everything on your own, by optimizing several settings. Without knowing all "audio distros" I anyway recommend against just installing an "audio distro". In my experiences the work that has to be done by the user is the same for "normal" distros and "audio distros". YMMV! Regards, Ralf -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
