Re: [linux-audio-user] Realtime Audio + Networking

on POSIX-ish operating systems, there are two orthogonal aspects to scheduling: scheduling class and scheduling priority. priority only ranks different execution contexts (kernel threads) within the *same* scheduling class - it has no impact when a scheduling decision has to be made between two execution contexts in two different classes. put differently, you can leave yourself in SCHED_OTHER (the default class) and raise your priority to the maximum, but you will never ever be scheduled to run if there is a SCHED_FIFO thread ready to run even if its numerical priority is lower than yours. there is no reason to use setpriority() for realtime work: sched_setscheduler's parameter argument defines the priority.