In the chapter on multiprocessing scaling, Graham talks, among other things, about the new features of Haswell processors, here I wanted to tell about another news. ')
In 2007 in Switzerland, with the support of Microsoft Research, the development of the experimental multiprocessor operating system Barrelfish began, which some features, such as CAS2, use. It is still far from the point of even minimal use; however, source code is available under the MIT license.