Post Syndicated from corbet original https://lwn.net/Articles/972710/

The extensible scheduler class (or “sched_ext”) is a comprehensive
framework that enables the implementation of CPU schedulers as a set of BPF
programs that can be loaded at run time. Despite having attracted a fair
amount of interest from the development community, sched_ext has run into
considerable opposition and seems far from acceptance into the mainline.
The posting by Tejun Heo of a new
version of the sched_ext series at the beginning of May has restarted
this long-running discussion, but it is not clear what the end result will
be.