Post Syndicated from original https://lwn.net/Articles/931789/

The Linux CPU scheduler will let realtime tasks hog the CPU to the
exclusion of everything else — except when it doesn’t. At the 2023 Open
Source Summit North America, Joel Fernandes covered the problems with
the kernel’s realtime throttling mechanism and a couple of potential
solutions. As a bonus, since the room was unscheduled for the following
slot, attendees were treated to a spontaneous session on
adaptive spinning in user space run by André Almeida.