Function times::benchu8

pub fn benchu8(
    lengths: Range<usize>,
    step: usize,
    repeats: usize,
    names: &[&str],
    closures: &[fn(_: &[u8])]
)

Tests of listed closures, named in names, on random data vectors of type specified by rn and lengths of increasing magnitudes in multiples of 10, e.g. 10,100,1000
repeats runs of each closure for each magnitude