func benchString(r testing.BenchmarkResult) string {
nsop := r.NsPerOp()
ns := fmt.Sprintf("%10d ns/op", nsop)
allocs := "0"
if r.N > 0 {
if nsop < 100 {
// The format specifiers here make sure that
// the ones digits line up for all three possible formats.
if nsop < 10 {
ns = fmt.Sprintf("%13.2f ns/op", float64(r.T.Nanoseconds())/float64(r.N))
} else {
ns = fmt.Sprintf("%12.1f ns/op", float64(r.T.Nanoseconds())/float64(r.N))
}
}
allocs = fmt.Sprintf("%d", r.MemAllocs/uint64(r.N))
}
return fmt.Sprintf("%8d\t%s\t%s allocs", r.N, ns, allocs)
}
