The ReTiS Lab and Evidence Srl have released a new version of the real-time Linux scheduler called SCHED_DEADLINE: https://lwn.net/Articles/521091/

For people who missed previous submissions, it consists of a new deadline-based CPU scheduler with bandwidth isolation (aka "resource reservation") capabilities. It supports global/clustered multiprocessor scheduling through dynamic task migrations.

A video about SCHED_DEADLINE is also available on youtube: http://www.youtube.com/watch?v=_APmI6qe9kU