Andrey Borodin <x4mmm@yandex-team.ru> writes:
>> On 8 Jul 2025, at 23:07, Tom Lane <tgl@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,)
measurementis 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