Hashing

August 19, 2026 · View on GitHub

This repository includes implementations based on the following sources:

BenchmarkDotNet v0.15.8, Windows 11 (10.0.26200.9168/25H2/2025Update/HudsonValley2) AMD Ryzen 7 5800H with Radeon Graphics 3.20GHz, 1 CPU, 16 logical and 8 physical cores .NET SDK 10.0.300 [Host] : .NET 10.0.8 (10.0.8, 10.0.826.23019), X64 RyuJIT x86-64-v3 DefaultJob : .NET 10.0.8 (10.0.8, 10.0.826.23019), X64 RyuJIT x86-64-v3

Method	Size	Mean	Error	StdDev	Median	Ratio	RatioSD
StdXxHash64	4	5.242 ns	0.1307 ns	0.1996 ns	5.191 ns	1.00	0.05
RustXxHash64	4	2.003 ns	0.0699 ns	0.1148 ns	1.978 ns	0.38	0.03
StdXxHash32	4	2.733 ns	0.0581 ns	0.0515 ns	2.735 ns	0.52	0.02
RustXxHash32	4	1.547 ns	0.0518 ns	0.0459 ns	1.550 ns	0.30	0.01
StdXxHash3	4	1.771 ns	0.0267 ns	0.0250 ns	1.760 ns	0.34	0.01
RustSipHash24	4	7.391 ns	0.0205 ns	0.0171 ns	7.386 ns	1.41	0.05
RustSipHash13	4	5.613 ns	0.0726 ns	0.0644 ns	5.589 ns	1.07	0.04
StdMarvinHash32	4	2.427 ns	0.0169 ns	0.0150 ns	2.423 ns	0.46	0.02
RustRapidHashV3	4	2.095 ns	0.0427 ns	0.0357 ns	2.105 ns	0.40	0.02
RustFoldHash64	4	1.510 ns	0.0243 ns	0.0227 ns	1.513 ns	0.29	0.01

StdXxHash64	8	4.945 ns	0.0982 ns	0.0919 ns	4.958 ns	1.00	0.03
RustXxHash64	8	2.407 ns	0.0747 ns	0.0830 ns	2.387 ns	0.49	0.02
StdXxHash32	8	3.459 ns	0.0503 ns	0.0446 ns	3.449 ns	0.70	0.02
RustXxHash32	8	2.250 ns	0.0715 ns	0.0735 ns	2.238 ns	0.46	0.02
StdXxHash3	8	1.796 ns	0.0269 ns	0.0252 ns	1.799 ns	0.36	0.01
RustSipHash24	8	10.490 ns	0.0733 ns	0.0649 ns	10.467 ns	2.12	0.04
RustSipHash13	8	6.577 ns	0.0247 ns	0.0231 ns	6.568 ns	1.33	0.02
StdMarvinHash32	8	3.153 ns	0.0194 ns	0.0162 ns	3.157 ns	0.64	0.01
RustRapidHashV3	8	2.099 ns	0.0349 ns	0.0310 ns	2.098 ns	0.42	0.01
RustFoldHash64	8	1.390 ns	0.0401 ns	0.0375 ns	1.390 ns	0.28	0.01

StdXxHash64	16	6.075 ns	0.0542 ns	0.0480 ns	6.063 ns	1.00	0.01
RustXxHash64	16	3.497 ns	0.0421 ns	0.0394 ns	3.492 ns	0.58	0.01
StdXxHash32	16	3.959 ns	0.0225 ns	0.0199 ns	3.961 ns	0.65	0.01
RustXxHash32	16	4.051 ns	0.0293 ns	0.0274 ns	4.057 ns	0.67	0.01
StdXxHash3	16	1.685 ns	0.0566 ns	0.0529 ns	1.687 ns	0.28	0.01
RustSipHash24	16	12.789 ns	0.0757 ns	0.0708 ns	12.795 ns	2.11	0.02
RustSipHash13	16	8.118 ns	0.0289 ns	0.0270 ns	8.115 ns	1.34	0.01
StdMarvinHash32	16	4.779 ns	0.0142 ns	0.0133 ns	4.779 ns	0.79	0.01
RustRapidHashV3	16	2.071 ns	0.0337 ns	0.0299 ns	2.080 ns	0.34	0.01
RustFoldHash64	16	1.378 ns	0.0216 ns	0.0181 ns	1.371 ns	0.23	0.00

StdXxHash64	32	9.729 ns	0.0485 ns	0.0454 ns	9.732 ns	1.00	0.01
RustXxHash64	32	8.144 ns	0.0503 ns	0.0470 ns	8.132 ns	0.84	0.01
StdXxHash32	32	5.789 ns	0.0276 ns	0.0259 ns	5.791 ns	0.59	0.00
RustXxHash32	32	5.795 ns	0.0324 ns	0.0303 ns	5.782 ns	0.60	0.00
StdXxHash3	32	3.692 ns	0.0561 ns	0.0497 ns	3.692 ns	0.38	0.01
RustSipHash24	32	18.505 ns	0.0570 ns	0.0505 ns	18.506 ns	1.90	0.01
RustSipHash13	32	11.278 ns	0.0465 ns	0.0435 ns	11.284 ns	1.16	0.01
StdMarvinHash32	32	9.049 ns	0.0624 ns	0.0553 ns	9.059 ns	0.93	0.01
RustRapidHashV3	32	7.777 ns	0.0565 ns	0.0501 ns	7.772 ns	0.80	0.01
RustFoldHash64	32	5.971 ns	0.0952 ns	0.0844 ns	5.948 ns	0.61	0.01

StdXxHash64	64	12.715 ns	0.0521 ns	0.0462 ns	12.721 ns	1.00	0.00
RustXxHash64	64	10.982 ns	0.0945 ns	0.0789 ns	10.950 ns	0.86	0.01
StdXxHash32	64	10.314 ns	0.1192 ns	0.1057 ns	10.330 ns	0.81	0.01
RustXxHash32	64	9.620 ns	0.0361 ns	0.0337 ns	9.623 ns	0.76	0.00
StdXxHash3	64	5.367 ns	0.0716 ns	0.0670 ns	5.351 ns	0.42	0.01
RustSipHash24	64	29.577 ns	0.0901 ns	0.0799 ns	29.564 ns	2.33	0.01
RustSipHash13	64	17.122 ns	0.0761 ns	0.0712 ns	17.130 ns	1.35	0.01
StdMarvinHash32	64	18.989 ns	0.0443 ns	0.0393 ns	19.005 ns	1.49	0.01
RustRapidHashV3	64	9.132 ns	0.2127 ns	0.2089 ns	9.217 ns	0.72	0.02
RustFoldHash64	64	7.827 ns	0.1027 ns	0.0960 ns	7.827 ns	0.62	0.01

StdXxHash64	128	16.715 ns	0.1300 ns	0.1153 ns	16.694 ns	1.00	0.01
RustXxHash64	128	16.994 ns	0.0872 ns	0.0816 ns	17.001 ns	1.02	0.01
StdXxHash32	128	17.776 ns	0.0604 ns	0.0536 ns	17.766 ns	1.06	0.01
RustXxHash32	128	18.715 ns	0.4334 ns	1.2365 ns	18.129 ns	1.12	0.07
StdXxHash3	128	9.458 ns	0.0991 ns	0.0927 ns	9.465 ns	0.57	0.01
RustSipHash24	128	51.843 ns	0.1841 ns	0.1722 ns	51.859 ns	3.10	0.02
RustSipHash13	128	29.578 ns	0.1174 ns	0.1041 ns	29.560 ns	1.77	0.01
StdMarvinHash32	128	39.595 ns	0.3505 ns	0.3279 ns	39.504 ns	2.37	0.02
RustRapidHashV3	128	11.020 ns	0.2471 ns	0.3213 ns	10.955 ns	0.66	0.02
RustFoldHash64	128	10.019 ns	0.2241 ns	0.2398 ns	9.902 ns	0.60	0.01

StdXxHash64	256	25.504 ns	0.1740 ns	0.1543 ns	25.488 ns	1.00	0.01
RustXxHash64	256	28.600 ns	0.1724 ns	0.1528 ns	28.587 ns	1.12	0.01
StdXxHash32	256	34.206 ns	0.1839 ns	0.1630 ns	34.234 ns	1.34	0.01
RustXxHash32	256	34.212 ns	0.1284 ns	0.1201 ns	34.237 ns	1.34	0.01
StdXxHash3	256	26.353 ns	0.5503 ns	0.6117 ns	26.204 ns	1.03	0.02
RustSipHash24	256	96.619 ns	0.3966 ns	0.3710 ns	96.498 ns	3.79	0.03
RustSipHash13	256	55.235 ns	0.3837 ns	0.3204 ns	55.218 ns	2.17	0.02
StdMarvinHash32	256	80.121 ns	0.2637 ns	0.2059 ns	80.159 ns	3.14	0.02
RustRapidHashV3	256	15.959 ns	0.2054 ns	0.1922 ns	16.006 ns	0.63	0.01
RustFoldHash64	256	15.365 ns	0.1956 ns	0.1633 ns	15.323 ns	0.60	0.01

StdXxHash64	512	42.658 ns	0.3765 ns	0.3338 ns	42.667 ns	1.00	0.01
RustXxHash64	512	53.391 ns	0.4039 ns	0.3778 ns	53.258 ns	1.25	0.01
StdXxHash32	512	67.783 ns	1.3580 ns	1.2703 ns	67.186 ns	1.59	0.03
RustXxHash32	512	68.079 ns	1.3248 ns	1.8134 ns	67.363 ns	1.60	0.04
StdXxHash3	512	27.736 ns	0.5179 ns	0.6550 ns	27.744 ns	0.65	0.02
RustSipHash24	512	187.760 ns	1.8449 ns	1.5406 ns	187.473 ns	4.40	0.05
RustSipHash13	512	104.607 ns	1.3751 ns	1.2863 ns	104.402 ns	2.45	0.03
StdMarvinHash32	512	161.601 ns	0.6853 ns	0.6410 ns	161.628 ns	3.79	0.03
RustRapidHashV3	512	27.949 ns	0.5939 ns	1.2526 ns	27.639 ns	0.66	0.03
RustFoldHash64	512	29.315 ns	0.5714 ns	0.5345 ns	29.242 ns	0.69	0.01

StdXxHash64	1024	79.034 ns	1.5671 ns	1.5391 ns	78.419 ns	1.00	0.03
RustXxHash64	1024	102.332 ns	0.3976 ns	0.3525 ns	102.329 ns	1.30	0.02
StdXxHash32	1024	133.481 ns	0.7729 ns	0.6454 ns	133.491 ns	1.69	0.03
RustXxHash32	1024	134.456 ns	2.1629 ns	2.0232 ns	134.199 ns	1.70	0.04
StdXxHash3	1024	40.876 ns	0.7747 ns	0.9222 ns	40.632 ns	0.52	0.01
RustSipHash24	1024	376.087 ns	4.4737 ns	4.1847 ns	375.236 ns	4.76	0.10
RustSipHash13	1024	204.750 ns	0.9803 ns	0.9170 ns	204.579 ns	2.59	0.05
StdMarvinHash32	1024	333.267 ns	4.3506 ns	3.8567 ns	332.794 ns	4.22	0.09
RustRapidHashV3	1024	50.849 ns	0.7158 ns	0.6696 ns	50.653 ns	0.64	0.01
RustFoldHash64	1024	51.635 ns	0.8319 ns	0.6495 ns	51.765 ns	0.65	0.01

Benchmarks netstandard2.1

Method	Size	Mean	Error	StdDev	Median	Ratio	RatioSD
StdXxHash64	4	4.903 ns	0.1088 ns	0.1018 ns	4.875 ns	1.00	0.03
RustXxHash64	4	2.206 ns	0.0706 ns	0.1377 ns	2.181 ns	0.45	0.03
StdXxHash32	4	3.024 ns	0.0843 ns	0.0789 ns	3.004 ns	0.62	0.02
RustXxHash32	4	1.629 ns	0.0374 ns	0.0312 ns	1.646 ns	0.33	0.01
StdXxHash3	4	2.089 ns	0.0334 ns	0.0312 ns	2.090 ns	0.43	0.01
RustSipHash24	4	7.819 ns	0.1848 ns	0.2128 ns	7.773 ns	1.60	0.05
RustSipHash13	4	5.803 ns	0.0757 ns	0.0671 ns	5.804 ns	1.18	0.03
StdMarvinHash32	4	2.546 ns	0.0607 ns	0.1079 ns	2.510 ns	0.52	0.02
RustRapidHashV3	4	4.596 ns	0.1162 ns	0.1292 ns	4.567 ns	0.94	0.03
RustFoldHash64	4	3.032 ns	0.0886 ns	0.2087 ns	2.957 ns	0.62	0.04

StdXxHash64	8	5.302 ns	0.1269 ns	0.2086 ns	5.303 ns	1.00	0.05
RustXxHash64	8	2.339 ns	0.0729 ns	0.0682 ns	2.350 ns	0.44	0.02
StdXxHash32	8	3.481 ns	0.0724 ns	0.0642 ns	3.481 ns	0.66	0.03
RustXxHash32	8	2.175 ns	0.0261 ns	0.0231 ns	2.172 ns	0.41	0.02
StdXxHash3	8	2.057 ns	0.0376 ns	0.0333 ns	2.054 ns	0.39	0.02
RustSipHash24	8	10.473 ns	0.0604 ns	0.0535 ns	10.453 ns	1.98	0.08
RustSipHash13	8	7.249 ns	0.0359 ns	0.0300 ns	7.242 ns	1.37	0.05
StdMarvinHash32	8	3.195 ns	0.0445 ns	0.0417 ns	3.189 ns	0.60	0.02
RustRapidHashV3	8	4.342 ns	0.0344 ns	0.0305 ns	4.340 ns	0.82	0.03
RustFoldHash64	8	2.975 ns	0.0282 ns	0.0235 ns	2.969 ns	0.56	0.02

StdXxHash64	16	6.142 ns	0.0646 ns	0.0604 ns	6.150 ns	1.00	0.01
RustXxHash64	16	3.466 ns	0.0263 ns	0.0233 ns	3.468 ns	0.56	0.01
StdXxHash32	16	3.971 ns	0.0151 ns	0.0142 ns	3.976 ns	0.65	0.01
RustXxHash32	16	3.675 ns	0.0250 ns	0.0222 ns	3.668 ns	0.60	0.01
StdXxHash3	16	3.292 ns	0.0468 ns	0.0438 ns	3.291 ns	0.54	0.01
RustSipHash24	16	13.215 ns	0.0840 ns	0.0702 ns	13.214 ns	2.15	0.02
RustSipHash13	16	8.139 ns	0.0671 ns	0.0627 ns	8.115 ns	1.33	0.02
StdMarvinHash32	16	4.852 ns	0.0600 ns	0.0501 ns	4.849 ns	0.79	0.01
RustRapidHashV3	16	4.264 ns	0.0190 ns	0.0168 ns	4.259 ns	0.69	0.01
RustFoldHash64	16	3.090 ns	0.0366 ns	0.0305 ns	3.083 ns	0.50	0.01

StdXxHash64	32	9.892 ns	0.0453 ns	0.0378 ns	9.895 ns	1.00	0.01
RustXxHash64	32	8.145 ns	0.0649 ns	0.0607 ns	8.138 ns	0.82	0.01
StdXxHash32	32	5.791 ns	0.0295 ns	0.0276 ns	5.796 ns	0.59	0.00
RustXxHash32	32	5.785 ns	0.0208 ns	0.0195 ns	5.786 ns	0.58	0.00
StdXxHash3	32	6.132 ns	0.0781 ns	0.0731 ns	6.100 ns	0.62	0.01
RustSipHash24	32	18.329 ns	0.0630 ns	0.0589 ns	18.337 ns	1.85	0.01
RustSipHash13	32	11.506 ns	0.0570 ns	0.0534 ns	11.505 ns	1.16	0.01
StdMarvinHash32	32	8.995 ns	0.0409 ns	0.0383 ns	9.001 ns	0.91	0.01
RustRapidHashV3	32	7.990 ns	0.0688 ns	0.0643 ns	7.974 ns	0.81	0.01
RustFoldHash64	32	10.158 ns	0.0430 ns	0.0359 ns	10.167 ns	1.03	0.01

StdXxHash64	64	12.399 ns	0.0725 ns	0.0678 ns	12.405 ns	1.00	0.01
RustXxHash64	64	10.542 ns	0.0506 ns	0.0449 ns	10.538 ns	0.85	0.01
StdXxHash32	64	10.404 ns	0.0498 ns	0.0466 ns	10.396 ns	0.84	0.01
RustXxHash32	64	9.633 ns	0.0331 ns	0.0310 ns	9.638 ns	0.78	0.00
StdXxHash3	64	10.915 ns	0.0397 ns	0.0371 ns	10.919 ns	0.88	0.01
RustSipHash24	64	29.864 ns	0.0918 ns	0.0859 ns	29.857 ns	2.41	0.01
RustSipHash13	64	17.287 ns	0.0981 ns	0.0917 ns	17.299 ns	1.39	0.01
StdMarvinHash32	64	19.219 ns	0.1386 ns	0.1158 ns	19.203 ns	1.55	0.01
RustRapidHashV3	64	12.552 ns	0.1478 ns	0.1310 ns	12.556 ns	1.01	0.01
RustFoldHash64	64	14.446 ns	0.2789 ns	0.2609 ns	14.423 ns	1.17	0.02

StdXxHash64	128	16.516 ns	0.2546 ns	0.2257 ns	16.497 ns	1.00	0.02
RustXxHash64	128	16.100 ns	0.1243 ns	0.1163 ns	16.110 ns	0.97	0.01
StdXxHash32	128	17.831 ns	0.1408 ns	0.1317 ns	17.776 ns	1.08	0.02
RustXxHash32	128	17.838 ns	0.1293 ns	0.1146 ns	17.840 ns	1.08	0.02
StdXxHash3	128	21.888 ns	0.1195 ns	0.1118 ns	21.882 ns	1.33	0.02
RustSipHash24	128	51.861 ns	0.2315 ns	0.2052 ns	51.857 ns	3.14	0.04
RustSipHash13	128	28.890 ns	0.3354 ns	0.3137 ns	28.865 ns	1.75	0.03
StdMarvinHash32	128	39.658 ns	0.1951 ns	0.1730 ns	39.616 ns	2.40	0.03
RustRapidHashV3	128	20.786 ns	0.2105 ns	0.1866 ns	20.752 ns	1.26	0.02
RustFoldHash64	128	19.445 ns	0.4123 ns	0.9878 ns	18.939 ns	1.18	0.06

StdXxHash64	256	26.030 ns	0.4425 ns	0.3695 ns	25.967 ns	1.00	0.02
RustXxHash64	256	29.236 ns	0.5657 ns	0.5015 ns	29.210 ns	1.12	0.02
StdXxHash32	256	34.974 ns	0.1847 ns	0.1637 ns	34.970 ns	1.34	0.02
RustXxHash32	256	34.776 ns	0.2812 ns	0.2492 ns	34.759 ns	1.34	0.02
StdXxHash3	256	70.983 ns	1.3855 ns	1.2960 ns	70.670 ns	2.73	0.06
RustSipHash24	256	97.290 ns	0.9096 ns	0.8064 ns	96.953 ns	3.74	0.06
RustSipHash13	256	55.524 ns	1.1445 ns	1.1753 ns	55.306 ns	2.13	0.05
StdMarvinHash32	256	81.086 ns	0.5239 ns	0.4901 ns	81.326 ns	3.12	0.05
RustRapidHashV3	256	37.347 ns	0.4964 ns	0.4643 ns	37.441 ns	1.44	0.03
RustFoldHash64	256	36.027 ns	0.5025 ns	0.4701 ns	35.803 ns	1.38	0.03

StdXxHash64	512	46.243 ns	0.9517 ns	1.8335 ns	45.773 ns	1.00	0.05
RustXxHash64	512	45.440 ns	0.6333 ns	0.5614 ns	45.322 ns	0.98	0.04
StdXxHash32	512	67.970 ns	0.7493 ns	0.7009 ns	68.060 ns	1.47	0.06
RustXxHash32	512	69.355 ns	1.3723 ns	1.6853 ns	69.189 ns	1.50	0.07
StdXxHash3	512	120.214 ns	2.3846 ns	3.2641 ns	121.081 ns	2.60	0.12
RustSipHash24	512	191.377 ns	0.4836 ns	0.3776 ns	191.347 ns	4.14	0.15
RustSipHash13	512	105.966 ns	0.4433 ns	0.3702 ns	106.046 ns	2.29	0.09
StdMarvinHash32	512	165.056 ns	1.0865 ns	1.0163 ns	165.013 ns	3.57	0.13
RustRapidHashV3	512	74.435 ns	0.8793 ns	0.7795 ns	74.406 ns	1.61	0.06
RustFoldHash64	512	76.041 ns	0.3381 ns	0.2997 ns	76.084 ns	1.65	0.06

StdXxHash64	1024	78.714 ns	0.9949 ns	0.9307 ns	78.865 ns	1.00	0.02
RustXxHash64	1024	84.394 ns	1.6766 ns	2.2382 ns	83.772 ns	1.07	0.03
StdXxHash32	1024	140.793 ns	2.8074 ns	4.4528 ns	140.689 ns	1.79	0.06
RustXxHash32	1024	136.343 ns	2.5828 ns	2.4160 ns	136.081 ns	1.73	0.04
StdXxHash3	1024	205.138 ns	3.1673 ns	2.6448 ns	204.670 ns	2.61	0.04
RustSipHash24	1024	396.947 ns	7.2287 ns	6.0363 ns	398.470 ns	5.04	0.09
RustSipHash13	1024	208.326 ns	3.4326 ns	3.2109 ns	209.715 ns	2.65	0.05
StdMarvinHash32	1024	332.841 ns	6.4972 ns	6.0775 ns	331.260 ns	4.23	0.09
RustRapidHashV3	1024	140.662 ns	1.3225 ns	1.1044 ns	140.361 ns	1.79	0.02
RustFoldHash64	1024	144.230 ns	2.9161 ns	2.7277 ns	144.570 ns	1.83	0.04

Hashing

Benchmarks net10.0

Benchmarks netstandard2.1

Benchmarks net10.0

Benchmarks netstandard2.1