The Computer Language
24.11 Benchmarks Game

Rust versus Intel C fastest performance

How the programs are written matters! Always look at the source code.

If the fastest programs are * hand-written vector instructions, does the host language matter? You might be more interested in the less optimised programs — more seconds, less gz source code.

fannkuch-redux
source secs mem gz cpu secs
* Intel C #6 2.24 19,684 1582 8.89
* Intel C #4 13.38 19,684 1190 13.38
* Rust #6 3.86 19,684 1260 15.17
Rust #4 6.92 19,684 1026 27.13
Rust #5 7.45 19,684 1023 29.32
Intel C #5 7.75 19,684 917 30.71
* Intel C #2 8.72 19,940 1563 34.15
Intel C #3 34.58 19,684 574 34.58
Rust #2 9.15 19,684 1198 35.91
Intel C #8 42.86 19,492 483 42.85
Intel C 43.31 19,684 514 43.31
n-body
source secs mem gz cpu secs
* Intel C #9 2.03 19,684 1639 2.03
* Rust #9 2.19 19,624 1881 2.19
* Rust #7 3.23 19,624 1759 3.23
Rust #3 3.46 19,624 1774 3.45
Rust #2 3.64 19,624 1809 3.64
* Rust #6 4.36 19,624 1796 4.35
* Intel C #4 4.92 19,684 1496 4.92
* Rust #5 5.01 19,624 2224 5.01
Rust #4 5.11 19,624 1810 5.11
Rust 5.52 19,624 1483 5.52
Intel C #7 5.54 19,684 1250 5.54
* Intel C #5 5.56 19,684 1436 5.56
Intel C #8 6.07 19,492 1193 6.07
Intel C #3 6.17 19,684 1214 6.17
Intel C 6.21 19,684 1179 6.21
Intel C #6 6.22 19,684 1186 6.22
Intel C #2 6.24 19,684 1270 6.24
spectral-norm
source secs mem gz cpu secs
* Intel C #6 0.39 20,724 1203 1.54
Intel C #8 2.67 19,316 389 2.67
* Rust 0.72 19,632 1262 2.80
* Rust #2 0.72 19,632 1117 2.80
Rust #4 0.72 19,632 823 2.85
* Rust #5 0.72 19,632 1062 2.85
* Rust #6 0.72 19,632 1132 2.85
* Rust #3 0.74 19,632 1060 2.86
* Intel C #5 0.72 19,700 576 2.87
* Intel C #7 0.73 19,700 906 2.88
* Intel C #4 0.73 21,012 1145 2.89
Intel C #3 0.73 19,700 470 2.89
* Rust #7   Make Error  
* Intel C #2   Make Error  
mandelbrot
source secs mem gz cpu secs
* Rust #4 0.95 33,392 1301 3.77
* Rust #6 1.07 34,152 1338 4.20
Rust #2 1.09 33,384 770 4.33
Rust #7 1.10 33,380 763 4.37
Rust #5 1.11 33,956 725 4.37
Rust #3 1.14 19,624 1013 4.54
Intel C #9 1.82 34,688 700 7.25
Rust 2.00 39,404 874 7.88
* Intel C #7 3.12 34,560 1000 12.39
* Intel C #4 3.21 34,560 805 12.78
* Intel C 3.25 33,024 828 12.97
* Intel C #3 3.31 33,024 769 13.21
Intel C #8 23.96 19,496 412 23.96
Intel C #5   Bad Output  
* Intel C #6   Make Error  
fasta
source secs mem gz cpu secs
Intel C #3 0.83 19,772 1469 0.83
Intel C #5 1.05 19,772 1286 1.05
Intel C #2 1.43 19,616 1299 1.43
* Rust #7 0.77 19,624 2533 1.54
Rust #3 1.98 19,624 1235 1.98
Intel C 2.92 19,772 1213 2.92
Intel C #6 1.03 19,772 1936 3.03
Rust #9 0.94 19,624 1952 3.22
Intel C #7 0.82 19,616 2276 3.26
Rust #5 0.93 19,624 1963 3.34
Rust #2 0.92 19,624 1910 3.40
Rust #6 3.46 123,848 959 3.46
Rust #4 3.47 123,848 944 3.46
Rust 4.25 19,624 1240 4.25
Intel C #8 7.71 19,956 839 7.70
Intel C #4   Make Error  
k-nucleotide
source secs mem gz cpu secs
Rust #7 2.67 133,824 1585 8.21
Rust #3 3.21 137,564 1549 9.51
Rust #6 2.80 159,764 1697 10.03
Rust #5 3.82 137,924 1745 11.17
Intel C 6.17 129,600 1512 13.43
Rust #2 5.87 138,292 1350 15.32
Rust #9 6.63 136,168 1850 17.12
Rust #4 6.73 137,308 1755 18.72
Rust 21.46 157,492 1086 66.75
reverse-complement
source secs mem gz cpu secs
* Intel C #7 0.44 500,272 1899 0.60
Intel C #9 0.47 500,144 1551 0.72
* Rust 0.53 498,952 2762 0.84
Rust #2 0.95 995,220 1332 1.58
Intel C #2 1.16 994,816 757 1.68
Rust #3 0.97 995,156 1105 1.69
Intel C #5 2.13 994,560 654 2.13
* Intel C #4 3.79 500,864 716 3.78
Intel C #6 1.06 752,984 828 4.16
binary-trees
source secs mem gz cpu secs
Rust #5 1.09 198,720 771 3.84
Rust #2 1.19 199,796 729 4.21
Rust #3 1.39 189,928 762 5.00
Rust #4 1.39 199,084 765 5.01
Intel C #2 1.66 170,496 816 5.36
Intel C #3 2.00 134,528 842 6.12
Rust 2.04 132,952 760 7.26
Intel C 17.93 264,064 660 17.93
Intel C #8 19.46 285,952 607 19.46
Intel C #5 9.37 351,488 914 34.02
pidigits
source secs mem gz cpu secs
Rust #4 0.71 19,624 804 0.71
* Rust #3 0.74 19,624 1373 0.74
* Rust #2 0.74 19,624 1312 0.74
* Rust 0.74 19,624 1426 0.74
Intel C #2 0.82 19,812 422 0.82
Intel C 0.88 19,844 459 0.88
regex-redux
source secs mem gz cpu secs
Rust #6 1.17 153,780 994 1.42
Rust 1.34 153,972 811 1.56
Rust #5 1.33 202,800 777 1.57
Rust #4 1.34 199,684 771 1.58
Rust #3 1.34 202,952 726 1.59
Rust #2 1.38 153,932 707 1.63
* Rust #7 0.78 148,924 2464 2.00
Intel C #5 0.89 154,780 1403 2.89
Intel C #2 3.20 103,680 1121 3.20
Intel C #4 1.04 154,628 1237 4.02
Intel C #3 1.83 106,240 1273 4.40
Rust

1.83.0
(90b35a623
2024-11-26)
LLVM version: 19.1.1

Intel C

Intel(R) oneAPI DPC++/C++ Compiler
2024.1.0.20240308