On Thu, 2018-06-28 at 11:25 -0500, dag dg wrote: > Changing the rlimit-rtprio doesn't cause it to change the priority it > attempts to run as, Yes, but it changes the allowed priority limit of the process. The default limit is 9, so that would explain why libjack can't set the priority to 15. However, you showed that libjack can't set the priority to even 1, so the rlimit-rtprio doesn't seem to be the problem (assuming that you didn't change rlimit-rtprio to 0 when testing). I don't know what the problem might be, since in your first email the verbose log showed that pulseaudio itself was able to set a realtime priority of 9. Maybe it was because pulseaudio is using rtkit and libjack is calling the kernel directly? There's probably some way of checking what the real rlimits are for a running process (probably some file under /proc). -- Tanu https://liberapay.com/tanuk https://www.patreon.com/tanuk
