ad36f87151
This grows the exp10 range for which the Eisel-Lemire algorithm applies from [-307, +288] to [-348, +347], roughly equivalent to the existing powersOfTen table in extfloat.go (which uses a different algorithm). name old time/op new time/op delta Atof64Decimal-4 48.4ns ± 1% 48.7ns ± 3% ~ (p=0.698 n=5+5) Atof64Float-4 57.9ns ± 1% 58.1ns ± 2% ~ (p=0.873 n=5+5) Atof64FloatExp-4 71.8ns ± 2% 72.2ns ± 2% ~ (p=0.730 n=5+5) Atof64Big-4 165ns ± 1% 164ns ± 1% ~ (p=0.635 n=5+5) Atof64RandomBits-4 165ns ± 1% 165ns ± 6% ~ (p=0.143 n=5+5) Atof64RandomFloats-4 147ns ± 2% 147ns ± 1% ~ (p=0.857 n=5+5) Change-Id: Idf7dc5297db6db2bd9e0bd4cb0e55e021916fa43 Reviewed-on: https://go-review.googlesource.com/c/go/+/264139 Reviewed-by: Robert Griesemer <gri@golang.org> Trust: Robert Griesemer <gri@golang.org> Trust: Nigel Tao <nigeltao@golang.org> |
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