message: reduce number of chachas to 1kB count
diff: @@ -40,7 +40,7 @@ const PUBLIC: usize = 0;
  #[test]
  fn chacha() {
  - let num_chachas = 128;
  + let num_chachas = 16;
  let rows_per_chacha = 20 * 4 * 10;
  let n_lower_bound = rows_per_chacha * num_chachas;
  let max_size = 1 << ceil_log2(n_lower_bound);
  