2fb5610c3a
Add benchmarks for Replace.
The length of parameter old does not change. Move the corresponding length
check outside the loop. Use range-over-int loops where possible.
Some benchmark results (no changes to allocations):
goos: darwin
goarch: amd64
pkg: strings
cpu: Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz
│ old │ new │
│ sec/op │ sec/op vs base │
Replace/"hello"_"l"_"L"_0-8 6.102n ± 6% 6.139n ± 5% ~ (p=0.644 n=20)
Replace/"hello"_"l"_"L"_-1-8 62.81n ± 1% 63.30n ± 1% ~ (p=0.098 n=20)
Replace/"hello"_"x"_"X"_-1-8 12.19n ± 0% 12.49n ± 0% +2.50% (p=0.000 n=20)
Replace/""_"x"_"X"_-1-8 12.20n ± 0% 12.51n ± 0% +2.58% (p=0.000 n=20)
Replace/"radar"_"r"_"<r>"_-1-8 69.65n ± 0% 66.57n ± 0% -4.43% (p=0.000 n=20)
Replace/""_""_"<>"_-1-8 39.54n ± 1% 35.84n ± 1% -9.34% (p=0.000 n=20)
Replace/"banana"_"a"_"<>"_-1-8 79.95n ± 0% 79.21n ± 0% -0.93% (p=0.000 n=20)
Replace/"banana"_"a"_"<>"_1-8 48.67n ± 1% 49.45n ± 0% +1.60% (p=0.000 n=20)
Replace/"banana"_"a"_"<>"_1000-8 80.28n ± 1% 79.52n ± 0% -0.95% (p=0.000 n=20)
Replace/"banana"_"an"_"<>"_-1-8 82.89n ± 1% 84.62n ± 1% +2.09% (p=0.000 n=20)
Replace/"banana"_"ana"_"<>"_-1-8 56.45n ± 1% 57.41n ± 1% +1.69% (p=0.000 n=20)
Replace/"banana"_""_"<>"_-1-8 114.5n ± 1% 104.8n ± 0% -8.52% (p=0.000 n=20)
Replace/"banana"_""_"<>"_10-8 114.5n ± 0% 104.8n ± 0% -8.43% (p=0.000 n=20)
Replace/"banana"_""_"<>"_6-8 104.00n ± 0% 95.43n ± 0% -8.24% (p=0.000 n=20)
Replace/"banana"_""_"<>"_5-8 91.85n ± 1% 83.68n ± 1% -8.89% (p=0.000 n=20)
Replace/"banana"_""_"<>"_1-8 43.73n ± 1% 40.17n ± 0% -8.13% (p=0.000 n=20)
Replace/"banana"_"a"_"a"_-1-8 4.410n ± 0% 4.443n ± 0% +0.76% (p=0.000 n=20)
Replace/"banana"_"a"_"a"_1-8 4.395n ± 0% 4.423n ± 1% +0.64% (p=0.022 n=20)
Replace/"☺☻☹"_""_"<>"_-1-8 98.58n ± 0% 91.66n ± 0% -7.02% (p=0.000 n=20)
geomean 39.72n 38.59n -2.83%
Change-Id: Ia0c7798b24d95d7c98b488a6d4ce7e78de76db9d
GitHub-Last-Rev:
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| misc | ||
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| .gitattributes | ||
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| codereview.cfg | ||
| CONTRIBUTING.md | ||
| go.env | ||
| LICENSE | ||
| PATENTS | ||
| README.md | ||
| SECURITY.md | ||
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