Andrey Borodin <x4...@yandex-team.ru> writes: >> On 8 Jul 2025, at 23:07, Tom Lane <t...@sss.pgh.pa.us> wrote: >> The fact that the clock tick is about 40ns is extremely >> obvious in this presentation.
> FWIW while working on UUID v7 Masahiko found that if we try to read real time
> with clock_gettime(CLOCK_REALTIME,) measurement is truncated to microseconds.
Yeah. Bear in mind that instr_time.h uses CLOCK_MONOTONIC_RAW on
macOS, so that's what we're looking at here.
regards, tom lane
