Rate uniq1 uniq2 uniq3 uniq4 uniqM
uniq1  3445/s    --  -18%  -27%  -77%  -80%
uniq2  4213/s   22%    --  -10%  -72%  -75%
uniq3  4696/s   36%   11%    --  -69%  -72%
uniq4 15175/s  340%  260%  223%    --  -10%
uniqM 16905/s  391%  301%  260%   11%    --