Please use `dub build ...` and then run report at least 2 times, and choice a better one.
Is this what you mean by your description of the results as e.g. "single precision numbers x2", "double precision numbers x2", etc.?
Might be better, instead of the "x2", to offer a small one-sentence description, e.g. "Each benchmark was run twice for each matrix size, and the better of the two runs was chosen in each case."
