$ test.pl 1
ok 1 - v1
ok 2 - v2
ok 3 - v3
ok 4 - v4
ok 5 - v5
ok 6 - v6
ok 7 - v7
ok 8 - v8
    1   6 CCCCCC
    1   4 GGGG
    1   3 AAA
    3   3 TTT
    2   2 AA
    2   2 GG
    5   2 TT
       Rate   v2   v1   v7   v3   v4   v5   v6   v8
v2  41819/s   -- -30% -45% -53% -57% -58% -60% -63%
v1  60150/s  44%   -- -21% -32% -38% -40% -43% -47%
v7  76560/s  83%  27%   -- -13% -22% -23% -28% -32%
v3  88071/s 111%  46%  15%   -- -10% -12% -17% -22%
v4  97745/s 134%  63%  28%  11%   --  -2%  -8% -13%
v5  99555/s 138%  66%  30%  13%   2%   --  -6% -12%
v6 105700/s 153%  76%  38%  20%   8%   6%   --  -6%
v8 112783/s 170%  88%  47%  28%  15%  13%   7%   --
1..8