"Andrey M. Borodin" <x4...@yandex-team.ru> writes:
> That’s a very interesting result, from the UUID POV!
> If time is almost always advancing, using time readings instead of a counter
> is very reasonable: we have interprocess monotonicity almost for free.
> Though time is advancing in a very small steps… RFC assumes that we use
> microseconds, I’m not sure it’s ok to use 10 more bits for nanoseconds…
Keep in mind also that instr_time.h does not pretend to provide
real time --- the clock origin is arbitrary. But these results
do give me additional confidence that gettimeofday() should be
good to the microsecond on any remotely-modern platform.
regards, tom lane
