Compare the two ends of this window

commit ref when n center lo hi min max
49ca31d3 master 1 month ago 10 1.996µ 1.893µ 2.099µ 1.875µ 2.223µ
b08bf2d6 master 1 month ago 10 1.683µ 1.633µ 1.703µ 1.620µ 1.740µ
68dbc353 master 1 month ago 10 1.568µ 1.548µ 1.578µ 1.542µ 1.588µ
504d01cf master 1 month ago 10 1.533µ 1.529µ 1.535µ 1.514µ 1.538µ
70490f67 1 month ago 10 1.896µ 1.625µ 2.047µ 1.604µ 2.098µ

Values in sec/op.