message: Update iterative_hash example for benchmarking
diff: @@ -7,6 +7,7 @@ fn main() {
  let mut last_millis: u128 = 0;
  let mut round_count: usize = 0;
  + let mut record_count: usize = 0;
  for i in 0.. {
  let mut hasher = Blake2b::new();
  @@ -14,11 +15,15 @@ fn main() {
  let out = hasher.result();
  data = out.to_vec();
  - if i != 0 && i % 100000 == 0 {
  + if i != 0 && i % 1000 == 0 {
  let millis = now.elapsed().unwrap().as_millis();
  - println!("{} rounds in last second", (i - round_count) as f64 / (millis - last_millis) as f64);
  + let diff = millis - last_millis;
  + if diff >= 100 {
  + record_count += 1;
  + println!("{}", (i - round_count) as f64 / diff as f64);
  last_millis = millis;
  round_count = i;
  }
  }
  }
  +}
  