2 ms·

I am not aware of it ever not working, since its creation.

• qwertyuiop924 10y ago
  I did point to my source: the documentation for libev, a widely used event library that abstracts over such OS-specific mechanisms. Whilebit may be outdated, I'm inclined to trust that it was true at some point, as it's more or less the libev maintainers' jobs to work with these interfaces day in and day out. It's possible they're incompotent, of course, but I find that unlikely.