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 3.88 19,804 1260 15.27
Rust #4 6.93 19,804 1026 27.20
Rust #5 7.66 19,804 1023 29.90
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 19,804 1198 35.90
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 19,804 1881 2.19
* Rust #7 3.25 19,804 1759 3.24
Rust #2 3.94 19,804 1809 3.94
* Rust #6 4.30 19,804 1796 4.30
Rust #3 4.49 19,352 1774 4.49
* Intel C #4 4.92 19,684 1496 4.92
* Rust #5 5.01 19,804 2224 5.01
Rust #4 5.10 19,804 1810 5.10
Rust 5.51 19,804 1483 5.51
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 #6 0.72 19,804 1132 2.85
Rust #4 0.72 19,804 823 2.85
* Rust #5 0.72 19,804 1062 2.85
* 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 #2 0.78 19,804 1117 2.98
* Rust 0.77 19,804 1262 2.99
* Rust #3 0.78 19,804 1060 3.00
* Rust #7   Make Error  
* Intel C #2   Make Error  
mandelbrot
source secs mem gz cpu secs
* Rust #4 0.94 33,408 1301 3.73
Rust #2 1.07 33,592 770 4.23
* Rust #6 1.08 34,048 1338 4.23
Rust #7 1.06 33,408 763 4.23
Rust #5 1.13 34,048 725 4.43
Rust #3 1.14 19,860 1013 4.54
Intel C #9 1.82 34,688 700 7.25
Rust 2.00 39,296 874 7.84
* 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 19,804 2533 1.54
Rust #3 1.98 19,804 1235 1.97
Intel C 2.92 19,772 1213 2.92
Intel C #6 1.03 19,772 1936 3.03
Rust #2 0.92 19,932 1910 3.09
Rust #9 0.93 19,352 1952 3.13
Rust #5 0.94 19,932 1963 3.14
Intel C #7 0.82 19,616 2276 3.26
Rust #6 3.46 123,652 959 3.45
Rust #4 3.57 123,652 944 3.57
Intel C #8 4.20 19,796 825 4.20
Rust 4.24 19,804 1240 4.24
Intel C #4   Make Error  
k-nucleotide
source secs mem gz cpu secs
Rust #7 2.84 133,840 1585 8.91
Rust #6 2.96 159,600 1697 10.67
Rust #3 3.52 137,568 1549 10.78
Rust #5 3.96 137,844 1745 11.95
Intel C 6.17 129,600 1512 13.43
Rust #2 6.28 138,736 1350 16.39
Rust #9 6.44 135,800 1850 17.00
Rust #4 6.74 137,440 1755 18.30
Rust 22.54 157,124 1086 67.38
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 0.53 498,816 2762 0.83
Rust #2 0.98 995,200 1332 1.62
Rust #3 0.98 995,200 1105 1.68
Intel C #2 1.16 994,816 757 1.68
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 1.08 198,656 771 3.77
Rust #2 1.22 199,684 729 4.29
Rust #4 1.33 187,948 765 4.80
Rust #3 1.40 188,740 762 5.06
Intel C #2 1.66 170,496 816 5.36
Intel C #3 2.00 134,528 842 6.12
Rust 2.05 132,992 760 7.21
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 19,804 804 0.71
* Rust #3 0.74 19,804 1373 0.74
* Rust 0.74 19,804 1426 0.74
* Rust #2 0.74 19,804 1312 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 1.18 154,096 994 1.44
Rust 1.33 153,792 811 1.58
Rust #5 1.34 203,224 777 1.58
Rust #2 1.34 153,776 707 1.60
Rust #4 1.35 199,548 771 1.61
Rust #3 1.36 202,908 726 1.61
* Rust #7 0.78 149,888 2464 1.99
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

1.80.1
(3f5fd8dd4
2024-08-06)
LLVM version: 18.1.7

Intel C

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