mirror of https://github.com/golang/go.git
3d198bd7be
Cover some functions that weren't benched before and add InString variants if the underlying implementation is different. Note: compare (Valid|RuneCount)InString* to their (Valid|RuneCount)* counterparts. It shows, somewhat unexpectedly, that ranging over a string is *much* slower than using calls to DecodeRune. Results: In order to avoid a discrepancy in measuring the performance of core we could leave the names of the string-based measurements unchanged and suffix the added alternatives with Bytes. Compared to old: BenchmarkRuneCountTenASCIIChars-8 44.3 12.4 -72.01% BenchmarkRuneCountTenJapaneseChars-8 167 67.1 -59.82% BenchmarkEncodeASCIIRune-8 3.37 3.44 +2.08% BenchmarkEncodeJapaneseRune-8 7.19 7.24 +0.70% BenchmarkDecodeASCIIRune-8 5.41 5.53 +2.22% BenchmarkDecodeJapaneseRune-8 8.17 8.41 +2.94% All benchmarks: BenchmarkRuneCountTenASCIIChars-8 100000000 12.4 ns/op BenchmarkRuneCountTenJapaneseChars-8 20000000 67.1 ns/op BenchmarkRuneCountInStringTenASCIIChars-8 30000000 44.5 ns/op BenchmarkRuneCountInStringTenJapaneseChars-8 10000000 165 ns/op BenchmarkValidTenASCIIChars-8 100000000 12.5 ns/op BenchmarkValidTenJapaneseChars-8 20000000 71.1 ns/op BenchmarkValidStringTenASCIIChars-8 30000000 50.0 ns/op BenchmarkValidStringTenJapaneseChars-8 10000000 161 ns/op BenchmarkEncodeASCIIRune-8 500000000 3.44 ns/op BenchmarkEncodeJapaneseRune-8 200000000 7.24 ns/op BenchmarkDecodeASCIIRune-8 300000000 5.53 ns/op BenchmarkDecodeJapaneseRune-8 200000000 8.41 ns/op BenchmarkFullASCIIRune-8 500000000 3.91 ns/op BenchmarkFullJapaneseRune-8 300000000 4.22 ns/op Change-Id: I674d2ee4917b975a37717bbfa1082cc84dcd275e Reviewed-on: https://go-review.googlesource.com/14431 Reviewed-by: Russ Cox <rsc@golang.org> |
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