A toy program for checking the resolution of Rust's std::time::Instant. Use only for entertainment.

git clone https://github.com/greeble-dev/instant_resolution.git
cd instant_resolution
cargo run --release

Measured: 100ns
OS: 100ns (windows/x86_64, QueryPerformanceFrequency = 10000000)

The measured time is from simply calling Instant::now() in a loop until it increases. The OS time is from taking a guess at the OS API that Instant might be using.