coarsetime

A Rust crate to make time measurements that focuses on speed.

This crate is a partial replacement for the Time and Duration structures from the standard library, with the following differences:

• Speed is privileged over accuracy. In particular, CLOCK_MONOTONIC_COARSE is used to retrieve the clock value on Linux systems, and transformations avoid operations that can be slow on non-Intel systems.
• The number of system calls can be kept to a minimum. The "most recent timestamp" is always kept in memory. It can be read at zero cost, and can be updated only as frequently as necessary.

Installation

coarsetime is available on crates.io and works on Rust stable, beta, and nightly.

Windows and Unix-like systems are supported.

Available features:

• nightly: optimizes for rust-nightly