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results: add strrchr results
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Performance is comparable with the performance of strchr() for
short strings.  A bit worse than glibc, but glibc gets to use
AVX(-512) anyway.

os: FreeBSD
arch: amd64
cpu: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz
        │ strrchr.pre.out │          strrchr.scalar.out          │        strrchr.baseline.out         │
        │     sec/op      │    sec/op     vs base                │   sec/op     vs base                │
Short        111.51µ ± 0%    82.39µ ± 1%  -26.11% (p=0.000 n=20)   45.19µ ± 0%  -59.48% (p=0.000 n=20)
Mid           66.19µ ± 0%    23.44µ ± 0%  -64.59% (p=0.000 n=20)   10.59µ ± 0%  -84.00% (p=0.000 n=20)
Long         51.422µ ± 0%   15.932µ ± 0%  -69.02% (p=0.000 n=20)   5.972µ ± 0%  -88.39% (p=0.000 n=20)
geomean       72.40µ         31.33µ       -56.72%                  14.19µ       -80.40%

        │ strrchr.pre.out │          strrchr.scalar.out           │          strrchr.baseline.out          │
        │       B/s       │     B/s       vs base                 │      B/s       vs base                 │
Short        1.044Gi ± 0%   1.413Gi ± 1%   +35.34% (p=0.000 n=20)    2.576Gi ± 0%  +146.76% (p=0.000 n=20)
Mid          1.759Gi ± 0%   4.967Gi ± 0%  +182.42% (p=0.000 n=20)   10.996Gi ± 0%  +525.18% (p=0.000 n=20)
Long         2.264Gi ± 0%   7.307Gi ± 0%  +222.76% (p=0.000 n=20)   19.493Gi ± 0%  +761.03% (p=0.000 n=20)
geomean      1.608Gi        3.715Gi       +131.07%                   8.204Gi       +410.23%

os: Linux
arch: x86_64
cpu:
        │ strrchr.glibc.out │
        │      sec/op       │
Short           28.91µ ± 2%
Mid             8.588µ ± 0%
Long            2.113µ ± 0%
geomean         8.064µ

        │ strrchr.glibc.out │
        │        B/s        │
Short          4.027Gi ± 2%
Mid            13.56Gi ± 0%
Long           55.10Gi ± 0%
geomean        14.44Gi
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@clausecker
clausecker committed Oct 16, 2023
1 parent 47c8952 commit 7e069e8
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140 changes: 140 additions & 0 deletions results/strrchr/strrchr.baseline.out
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os: FreeBSD
arch: amd64
cpu: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz

BenchmarkShort 26152 45908.265 ns/op 2722.8212 MB/s
BenchmarkMid 113053 10603.782 ns/op 11788.247 MB/s
BenchmarkLong 200935 5971.4852 ns/op 20932.816 MB/s
os: FreeBSD
arch: amd64
cpu: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz

BenchmarkShort 26365 45359.626 ns/op 2755.7546 MB/s
BenchmarkMid 113116 10586.845 ns/op 11807.106 MB/s
BenchmarkLong 200937 5972.7859 ns/op 20928.257 MB/s
os: FreeBSD
arch: amd64
cpu: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz

BenchmarkShort 26352 44961.211 ns/op 2780.1742 MB/s
BenchmarkMid 112981 10584.754 ns/op 11809.439 MB/s
BenchmarkLong 200952 5972.0409 ns/op 20930.868 MB/s
os: FreeBSD
arch: amd64
cpu: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz

BenchmarkShort 26302 45897.159 ns/op 2723.4801 MB/s
BenchmarkMid 112986 10594.277 ns/op 11798.823 MB/s
BenchmarkLong 200960 5971.7253 ns/op 20931.974 MB/s
os: FreeBSD
arch: amd64
cpu: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz

BenchmarkShort 26427 45083.237 ns/op 2772.6492 MB/s
BenchmarkMid 113192 10583.767 ns/op 11810.539 MB/s
BenchmarkLong 200948 5971.6301 ns/op 20932.308 MB/s
os: FreeBSD
arch: amd64
cpu: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz

BenchmarkShort 26376 45177.896 ns/op 2766.8398 MB/s
BenchmarkMid 113181 10584.68 ns/op 11809.521 MB/s
BenchmarkLong 200931 5976.1893 ns/op 20916.339 MB/s
os: FreeBSD
arch: amd64
cpu: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz

BenchmarkShort 26304 45002.164 ns/op 2777.6442 MB/s
BenchmarkMid 113464 10586.623 ns/op 11807.354 MB/s
BenchmarkLong 200944 5972.1667 ns/op 20930.427 MB/s
os: FreeBSD
arch: amd64
cpu: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz

BenchmarkShort 26432 45149.423 ns/op 2768.5847 MB/s
BenchmarkMid 113140 10587.353 ns/op 11806.539 MB/s
BenchmarkLong 200938 5972.6655 ns/op 20928.679 MB/s
os: FreeBSD
arch: amd64
cpu: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz

BenchmarkShort 26570 45127.071 ns/op 2769.956 MB/s
BenchmarkMid 113145 10582.445 ns/op 11812.015 MB/s
BenchmarkLong 200944 5972.9619 ns/op 20927.641 MB/s
os: FreeBSD
arch: amd64
cpu: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz

BenchmarkShort 26538 44617.446 ns/op 2801.5947 MB/s
BenchmarkMid 113180 10601.601 ns/op 11790.672 MB/s
BenchmarkLong 200944 5971.5677 ns/op 20932.527 MB/s
os: FreeBSD
arch: amd64
cpu: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz

BenchmarkShort 26455 45283.01 ns/op 2760.4172 MB/s
BenchmarkMid 113248 10585.452 ns/op 11808.659 MB/s
BenchmarkLong 200924 5971.6971 ns/op 20932.073 MB/s
os: FreeBSD
arch: amd64
cpu: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz

BenchmarkShort 26574 45096.838 ns/op 2771.8129 MB/s
BenchmarkMid 113240 10579.873 ns/op 11814.887 MB/s
BenchmarkLong 200925 5972.1143 ns/op 20930.611 MB/s
os: FreeBSD
arch: amd64
cpu: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz

BenchmarkShort 25849 46309.136 ns/op 2699.2514 MB/s
BenchmarkMid 112941 10605.487 ns/op 11786.351 MB/s
BenchmarkLong 200932 5974.6647 ns/op 20921.676 MB/s
os: FreeBSD
arch: amd64
cpu: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz

BenchmarkShort 26491 45203.993 ns/op 2765.2424 MB/s
BenchmarkMid 113137 10607.375 ns/op 11784.254 MB/s
BenchmarkLong 200954 5973.0989 ns/op 20927.161 MB/s
os: FreeBSD
arch: amd64
cpu: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz

BenchmarkShort 26259 45304.203 ns/op 2759.1259 MB/s
BenchmarkMid 112798 10617.55 ns/op 11772.961 MB/s
BenchmarkLong 200954 5973.8296 ns/op 20924.601 MB/s
os: FreeBSD
arch: amd64
cpu: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz

BenchmarkShort 26205 45523.292 ns/op 2745.8471 MB/s
BenchmarkMid 113013 10578.805 ns/op 11816.079 MB/s
BenchmarkLong 200952 5971.652 ns/op 20932.231 MB/s
os: FreeBSD
arch: amd64
cpu: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz

BenchmarkShort 26463 45095.837 ns/op 2771.8745 MB/s
BenchmarkMid 113250 10597.975 ns/op 11794.706 MB/s
BenchmarkLong 200941 5971.7227 ns/op 20931.983 MB/s
os: FreeBSD
arch: amd64
cpu: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz

BenchmarkShort 26440 45125.36 ns/op 2770.061 MB/s
BenchmarkMid 113242 10576.4 ns/op 11818.766 MB/s
BenchmarkLong 200929 5972.5662 ns/op 20929.027 MB/s
os: FreeBSD
arch: amd64
cpu: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz

BenchmarkShort 26330 45329.172 ns/op 2757.6061 MB/s
BenchmarkMid 113187 10582.736 ns/op 11811.691 MB/s
BenchmarkLong 200925 5972.0904 ns/op 20930.695 MB/s
os: FreeBSD
arch: amd64
cpu: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz

BenchmarkShort 26371 45443.583 ns/op 2750.6634 MB/s
BenchmarkMid 113236 10587.161 ns/op 11806.753 MB/s
BenchmarkLong 200922 5972.931 ns/op 20927.749 MB/s
120 changes: 120 additions & 0 deletions results/strrchr/strrchr.glibc.out
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os: Linux
arch: x86_64

BenchmarkShort 38238 29226.048 ns/op 4277.0066 MB/s
BenchmarkMid 140055 8578.1565 ns/op 14571.895 MB/s
BenchmarkLong 567904 2112.2382 ns/op 59178.931 MB/s
os: Linux
arch: x86_64

BenchmarkShort 38173 29061.057 ns/op 4301.2888 MB/s
BenchmarkMid 139858 8578.6294 ns/op 14571.092 MB/s
BenchmarkLong 568536 2111.5386 ns/op 59198.54 MB/s
os: Linux
arch: x86_64

BenchmarkShort 38664 29519.711 ns/op 4234.4588 MB/s
BenchmarkMid 139578 8613.7796 ns/op 14511.632 MB/s
BenchmarkLong 568424 2114.9982 ns/op 59101.704 MB/s
os: Linux
arch: x86_64

BenchmarkShort 39002 28728.033 ns/op 4351.1507 MB/s
BenchmarkMid 138610 8575.5794 ns/op 14576.275 MB/s
BenchmarkLong 568599 2110.1206 ns/op 59238.32 MB/s
os: Linux
arch: x86_64

BenchmarkShort 39054 29025.213 ns/op 4306.6007 MB/s
BenchmarkMid 139353 8606.0356 ns/op 14524.69 MB/s
BenchmarkLong 568418 2110.9964 ns/op 59213.742 MB/s
os: Linux
arch: x86_64

BenchmarkShort 39380 28585.148 ns/op 4372.9002 MB/s
BenchmarkMid 139514 8564.3905 ns/op 14595.318 MB/s
BenchmarkLong 568029 2113.4212 ns/op 59145.805 MB/s
os: Linux
arch: x86_64

BenchmarkShort 38082 28774.612 ns/op 4344.1072 MB/s
BenchmarkMid 138621 8608.0607 ns/op 14521.273 MB/s
BenchmarkLong 568557 2115.6454 ns/op 59083.626 MB/s
os: Linux
arch: x86_64

BenchmarkShort 38830 29863.928 ns/op 4185.6517 MB/s
BenchmarkMid 139616 8575.8572 ns/op 14575.802 MB/s
BenchmarkLong 569028 2110.9141 ns/op 59216.053 MB/s
os: Linux
arch: x86_64

BenchmarkShort 38658 29498.097 ns/op 4237.5616 MB/s
BenchmarkMid 139730 8581.7043 ns/op 14565.871 MB/s
BenchmarkLong 568543 2110.7484 ns/op 59220.7 MB/s
os: Linux
arch: x86_64

BenchmarkShort 37101 28765.877 ns/op 4345.4263 MB/s
BenchmarkMid 138890 8640.2101 ns/op 14467.241 MB/s
BenchmarkLong 568923 2113.7028 ns/op 59137.925 MB/s
os: Linux
arch: x86_64

BenchmarkShort 39399 28006.549 ns/op 4463.2417 MB/s
BenchmarkMid 139149 8593.5624 ns/op 14545.772 MB/s
BenchmarkLong 567345 2113.8409 ns/op 59134.063 MB/s
os: Linux
arch: x86_64

BenchmarkShort 39212 29826.868 ns/op 4190.8523 MB/s
BenchmarkMid 139605 8575.303 ns/op 14576.744 MB/s
BenchmarkLong 568256 2115.1119 ns/op 59098.527 MB/s
os: Linux
arch: x86_64

BenchmarkShort 37225 29897.416 ns/op 4180.9633 MB/s
BenchmarkMid 139152 8636.5871 ns/op 14473.31 MB/s
BenchmarkLong 568557 2110.7831 ns/op 59219.728 MB/s
os: Linux
arch: x86_64

BenchmarkShort 37231 28895.913 ns/op 4325.8713 MB/s
BenchmarkMid 139836 8595.0773 ns/op 14543.208 MB/s
BenchmarkLong 568269 2118.1782 ns/op 59012.977 MB/s
os: Linux
arch: x86_64

BenchmarkShort 39154 28578.983 ns/op 4373.8436 MB/s
BenchmarkMid 139032 8580.0686 ns/op 14568.648 MB/s
BenchmarkLong 568614 2113.2042 ns/op 59151.878 MB/s
os: Linux
arch: x86_64

BenchmarkShort 39487 28504.785 ns/op 4385.2286 MB/s
BenchmarkMid 140702 8573.706 ns/op 14579.46 MB/s
BenchmarkLong 568054 2111.5034 ns/op 59199.527 MB/s
os: Linux
arch: x86_64

BenchmarkShort 38640 29952.295 ns/op 4173.3029 MB/s
BenchmarkMid 139438 8584.0041 ns/op 14561.969 MB/s
BenchmarkLong 568807 2110.7989 ns/op 59219.284 MB/s
os: Linux
arch: x86_64

BenchmarkShort 38700 28686.516 ns/op 4357.448 MB/s
BenchmarkMid 139087 8603.3434 ns/op 14529.235 MB/s
BenchmarkLong 568756 2110.9558 ns/op 59214.884 MB/s
os: Linux
arch: x86_64

BenchmarkShort 38703 28915.271 ns/op 4322.9752 MB/s
BenchmarkMid 139833 8591.8214 ns/op 14548.72 MB/s
BenchmarkLong 568588 2114.8074 ns/op 59107.036 MB/s
os: Linux
arch: x86_64

BenchmarkShort 38068 28573.535 ns/op 4374.6775 MB/s
BenchmarkMid 139047 8605.4653 ns/op 14525.653 MB/s
BenchmarkLong 568904 2113.5654 ns/op 59141.77 MB/s
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