Microsoft's research OS Midori supposedly did everything with async/await and got down to about one thread per processor (or at least one thread per process and

Microsoft's research OS Midori supposedly did everything with async/await and got down to about one thread per processor (or at least one thread per process and processor). In Midori all programs were written in a special dialect of C#. Safety would have been ensured by the language, but all programs it actually ran were probably also written by very competent programmers (which doesn't happen in real life ...). If I understand things correctly, the language would have imposed an early example of "Structured Concurrency" (although that term hadn't been invented yet) <http://joeduffyblog.com/2015/11/19/asynchronous-everything/ http://joeduffyblog.com/2015/11/19/asynchronous-everything/>