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I would love to see threads based on this work (OS support for lightweight threads): http://www.linuxplumbersconf.org/2013/ocw//system/presentations/1653/origi

• pron 12y ago
  AFAIK, Google uses it (to some extent, at least), but the solution suffers some issues that make it less than ideal. While it relinquishes scheduling to the application, stack management remains the kernel responsibility, so while the task-switching overhead is greatly reduced, the threads are still not quite lightweight. The advantages to the approach is that it automatically crosses "language barriers", say, between the JVM and native code. This is very important for Google, who use C++ libraries as common code in their polyglot projects, but maybe not so important in other shops.