User-level threads....... with threads. - Paul Turner - Google

"Multi-threaded programming is hard. Synchronous interfaces can help, but typically require lighter-weight representation of concurrency than a thread to implement efficiently. Frustratingly, this leads to a proliferation of both asynchronous and synchronous interfaces, depending on the language used.
Over the past year we've been looking at how a uniform, performant, synchronous programming model can be implemented across all of Google's core languages (C++, Java, Go, Python), while maintaining compatibility with existing code.

[RJRyan]

A good talk from this year's Linux Plumbers Conference about a new approach to Linux scheduling that gives you some of the performance of userland scheduling with the benefits of kernel scheduling.

[stevenhe]

But how do the tradeoffs compare to the multithreaded asynchronous work-stealing event loops that are prevalent today?

[semafororobot]

So, basically Windows 7 user-mode scheduling. Nice!

[kk-sify]

Are these kernel API's available? which distro? where can I find it?

[markmaker]

Interesting, but sounds like the OS scheduler should be improved instead.

[杨可奥]

This technology hasn't landed until now (2021). Meanwhile, the golang and its poor runtime / grammar have ruined my life :(