Post Syndicated from original https://lwn.net/Articles/909611/

Just over ten years ago, the Arm big.LITTLE architecture posed a challenge for the kernel’s CPU
scheduler: how should processes be assigned to CPUs when not all CPUs have
the same capacity? The situation has not gotten simpler since then; new
systems bring new quirks that must be kept in mind for optimal scheduling.
At the 2022 Linux Plumbers Conference, Len
Brown and Ricardo Neri talked about Intel’s hybrid systems and the work
that is being done to schedule properly on those systems.