[$] Many uses for Core scheduling
Some new kernel features are welcomed by the kernel development community,
while others are a rather harder sell. It is fair to say that core scheduling, which makes CPU scheduling
harder by placing constraints on which processes may run simultaneously in
a core, is of the latter variety. Core scheduling was the topic of (at
least) three different sessions at the 2019 Linux Plumbers Conference. One
of the most interesting outcomes, perhaps, is that there are use cases for
this feature beyond protection from side-channel attacks.