Does boost chrono process_real_cpu_clock provide info in ticks?

Question

Does boost chrono process_real_cpu_clock provide info in ticks or nanoseconds or different on windows and linux?

Answer 1

The definition for process_real_cpu_clock^† clearly identifies the member type duration as being in nanoseconds.

(Note that this does not in itself guarantee nanosecond precision or accuracy, only nanosecond units.)

^{† You did not specify what version you are using, so I have assumed 1.55.0 for the link.}