3 ms·

Only if the article mentioned it! Oh wait, it did! https://www.usenix.org/conference/nsdi18/presentation/geng https://www.usenix.org/conference/nsdi18/present

• geofft 8y ago
  I don't think the article answers amelius's question, which is not about how you would achieve that precision but how you would use it. On an OS that only supports recording timestamps up to microsecond accuracy, what is the point of synchronizing your clocks within nanoseconds of each other, even if you could?
  • egwor 8y ago
    On linux you can get nanosecond timestamps, and so could record them. This could be useful for capturing certain events. Is that what is meant? IIRC Windows XP didn't support resolving timestamps smaller than 8ms but we've moved beyond this.