Get unix time (nanoseconds) in blazing low latency with high precision. About 5xx faster than SystemTime::now().
| OS | CPU | benchmark | rtsc::unix_nano() | rtsc::unix_nano_std() |
|---|---|---|---|---|
| macOS Monterey | Intel Core i7-7700HQ | bench & bench_std | 7 ns/iter (+/- 1) | 32 ns/iter (+/- 2) |
rtsc::init()for init env and functions. It'll find out tsc clock is reliable or not. Not thread safe.rtsc::unix_nano()for get timestamp.rtsc::calibrate()for calibrate the clock. Invoke it every 5 min is a good idea in background.
You could find a Go version written me which explains how it works.
