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| author | Donovan Hide <donovanhide@gmail.com> | 2013-02-19 10:36:15 -0500 |
|---|---|---|
| committer | Russ Cox <rsc@golang.org> | 2013-02-19 10:36:15 -0500 |
| commit | 937f91e1daadfe55aa57e3482485494a0765c849 (patch) | |
| tree | f8251cffce4656dc2eafd5d4c4e161e18f0f79a4 /src/pkg/debug | |
| parent | 9704c80b93c569d8bdb3eaa90d47a52168c51ee0 (diff) | |
| download | go-937f91e1daadfe55aa57e3482485494a0765c849.tar.xz | |
strings: faster Count, Index
Slightly better benchmarks for when string and separator are equivalent and also less branching in inner loops.
benchmark old ns/op new ns/op delta
BenchmarkGenericNoMatch 3430 3442 +0.35%
BenchmarkGenericMatch1 23590 22855 -3.12%
BenchmarkGenericMatch2 108031 105025 -2.78%
BenchmarkSingleMaxSkipping 2969 2704 -8.93%
BenchmarkSingleLongSuffixFail 2826 2572 -8.99%
BenchmarkSingleMatch 205268 197832 -3.62%
BenchmarkByteByteNoMatch 987 921 -6.69%
BenchmarkByteByteMatch 2014 1749 -13.16%
BenchmarkByteStringMatch 3083 3050 -1.07%
BenchmarkHTMLEscapeNew 922 915 -0.76%
BenchmarkHTMLEscapeOld 1654 1570 -5.08%
BenchmarkByteByteReplaces 11897 11556 -2.87%
BenchmarkByteByteMap 4485 4255 -5.13%
BenchmarkIndexRune 174 121 -30.46%
BenchmarkIndexRuneFastPath 41 41 -0.24%
BenchmarkIndex 45 44 -0.22%
BenchmarkMapNoChanges 433 431 -0.46%
BenchmarkIndexHard1 4015336 3316490 -17.40%
BenchmarkIndexHard2 3976254 3395627 -14.60%
BenchmarkIndexHard3 3973158 3378329 -14.97%
BenchmarkCountHard1 4403549 3448512 -21.69%
BenchmarkCountHard2 4387437 3413059 -22.21%
BenchmarkCountHard3 4403891 3382661 -23.19%
BenchmarkIndexTorture 28354 25864 -8.78%
BenchmarkCountTorture 29625 27463 -7.30%
BenchmarkFields 38752040 39169840 +1.08%
BenchmarkFieldsFunc 38797765 38888060 +0.23%
benchmark old MB/s new MB/s speedup
BenchmarkSingleMaxSkipping 3367.07 3697.62 1.10x
BenchmarkSingleLongSuffixFail 354.51 389.47 1.10x
BenchmarkSingleMatch 73.07 75.82 1.04x
BenchmarkFields 27.06 26.77 0.99x
BenchmarkFieldsFunc 27.03 26.96 1.00x
R=dave, fullung, remyoudompheng, rsc
CC=golang-dev
https://golang.org/cl/7350045
Diffstat (limited to 'src/pkg/debug')
0 files changed, 0 insertions, 0 deletions