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Question: couldn't you use OS fibers to do "coroutines" without being resource intensive? I know all major OS kernels have supported fibers for some time...

• gpderetta 11y ago
  Linux for one doesn't unless you count the obsolete (and slow) swapcontext.
  • acconsta 11y ago
    Google implemented fibers. Hopefully they'll get upstreamed. https://www.youtube.com/watch?v=KXuZi9aeGTw https://www.youtube.com/watch?v=KXuZi9aeGTw
    • gpderetta 11y ago
      If I remember correctly, that's an additional interface for usermode initiated, cooperative scheduling of kernel threads (basically a variant of pthread_yield that allows specifying which thread is going to get the timeslice we are relinquishing). It still requites a syscall and the entities being scheduled are proper kernel level threads. So not really fibers. Pretty cool though. Edit: autocorrect
• rumcajz 11y ago
  You can use this: http://libmill.org http://libmill.org