[docs] [issue37205] time.perf_counter() is not system-wide on Windows, in disagreement with documentation

Eryk Sun <eryksun@gmail.com> added the comment:

suggest to use time.perf_counter_ns() instead of time.perf_counter() for best precision.

QPC typically has a frequency of 1e7, which requires 24 bits for the fraction of a second. So a system can be up for years before the 53-bit precision of a float is an issue. What am I missing? ---------- nosy: +eryksun _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue37205> _______________________________________