3 ms·

Isn't this adding a lot of overhead compared to calling a synchronous implementation of the same code ?

• Manishearth 10y ago
  You'd have to block on I/O somehow. You can avoid the threadpool costs to block, too, IIRC (but that's worse)
  • fooyc 10y ago
    That's the point. Calling a blocking system call is cheaper that artificially blocking on a non-blocking operation.