In 4096 words, 16 are 'abcb'
        Rate uccmp regex
uccmp 1192/s    --   -5%
regex 1255/s    5%    --
In 4096 words, 0 are 'abcb'
        Rate uccmp regex
uccmp 1225/s    --   -3%
regex 1264/s    3%    --
In 4096 words, 4096 are 'abcb'
        Rate regex uccmp
regex  970/s    --  -23%
uccmp 1260/s   30%    --