        │   before    │                after                │
        │   sec/op    │   sec/op     vs base                │
A         100.0n ± 0%   100.0n ± 0%       ~ (p=1.000 n=6) ¹
B         10.00µ ± 0%
C                       10.00µ ± 0%
geomean   1.000µ        1.000µ       +0.00%               ²
¹ all samples are equal
² benchmark set differs from baseline; geomeans may not be comparable