psp
Introducing an advanced ps (process state) command and a new alias. The vastly stripped down default pCP "ps" Linux command (busybox) is pretty useless when it comes to looking up your process situation.
Now. The pCP toolbox installs a small package (procps-ng) that offers the full featured ps. The toolbox installer installs also a very useful alias that runs ps with some useful options.
By typing
psp in a terminal, you'll get the full picture, about processes, threads, priorities and affinities. This way you can easily verify if all related settings and tweaks are working.
It's actually been me who just recently talked pCP-Paul into getting the procps-np package into the pCP repo (Thx Paul for acting so quick). Background: There's been a recent discussion over at squeezebox forums where certain flaws remained undiscovered because of the lack of such a tool. (I hope the pCP team can make this - my setup - default).
What you can see here is, is that a squeezelite-custom version runs @priority 47. And just the output thread runs @prio48. You also see that all threads except the output thread (CPU3) are attached to CPU2. That's basically how it looks if everything is properly pCP-Toolbox-like configured.
You can try this command once you're done with the whole setup and tweaking.