This is interesting. I wonder what's keeping this kind of work from being mainlined.
The present (as shown in the slides) Linux context switch times are painfully long.
I'd love to hear otherwise or in more detail from someone at Google. It's frustrating to have to do archaeology just to guess what the state of the art is. Isn't sharing your findings part of "organizing the world's information"?
It's the bit on the end that sounds a lot less noble.