All unique (2491306578):
       Rate    u1    u2    u3    u4    u9
u1  14387/s    --  -71%  -91%  -91%  -93%
u2  50142/s  249%    --  -67%  -67%  -74%
u3 153182/s  965%  205%    --   -0%  -22%
u4 153395/s  966%  206%    0%    --  -22%
u9 195811/s 1261%  291%   28%   28%    --

Not unique (1102345678):
        Rate     u1     u2     u3     u4     u9
u1   14381/s     --   -71%   -97%   -97%   -99%
u2   50429/s   251%     --   -91%   -91%   -97%
u3  531431/s  3595%   954%     --    -4%   -65%
u4  556425/s  3769%  1003%     5%     --   -64%
u9 1539566/s 10606%  2953%   190%   177%     --