On the radar: the ongoing, slow-burning discussion over the sched_ext scheduling class (which allows the writing of complete CPU schedulers in BPF: https://lwn.net/Articles/922405/
). This thread has been ongoing since July:https://lwn.net/ml/linux-kernel/20230726091752.GA3802077@hirez.programming.kicks-ass.net/
with a new message showing up every few weeks. Regardless of how one feels about sched_ext, it is clear that quite a bit of thought has gone into the problem on both sides of the debate.