The Computer Language
22.05 Benchmarks Game

Fastest cpu secs Go versus C++ g++

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 cpu seconds, less gz source code.

fannkuch-redux
source mem gz cpu
C++ g++ #6 2,000 1528 12.93
C++ g++ #7 992 1150 13.89
C++ g++ #5 2,000 980 29.40
Go #3 2,260 969 32.88
C++ g++ #4 2,216 1439 40.52
C++ g++ #3 988 593 40.55
C++ g++ #2 2,224 1440 42.64
C++ g++ 2,164 1059 42.76
Go 2,956 900 47.36
Go #2 11,316 896 47.56
n-body
source mem gz cpu
C++ g++ #0 964 1927 2.17
C++ g++ #2 1,944 1879 4.06
C++ g++ #7 1,976 1808 4.28
C++ g++ #9 1,260 1530 4.90
C++ g++ #6 1,300 1668 5.65
C++ g++ #4 1,040 1428 5.68
C++ g++ #3 1,280 1396 5.74
C++ g++ 1,260 1659 5.93
C++ g++ #8 1,220 1517 6.08
C++ g++ #5 1,944 1749 6.11
Go #3 1,136 1200 6.38
Go 1,136 1310 6.58
Go #2 1,132 1215 6.94
spectral-norm
source mem gz cpu
C++ g++ #6 1,348 1044 2.85
C++ g++ #5 2,048 1044 5.26
Go 2,452 411 5.33
C++ g++ 1,964 452 5.36
Go #4 1,952 548 5.67
Go #2 1,420 668 5.68
C++ g++ #8 1,348 1278 6.09
mandelbrot
source mem gz cpu
C++ g++ #4 34,720 3542 3.27
C++ g++ 32,336 1791 3.48
C++ g++ #6 31,792 1002 3.88
C++ g++ #0 34,712 2739 4.06
C++ g++ #8 34,448 742 13.19
C++ g++ #5 33,640 590 13.37
C++ g++ #9 34,428 726 13.48
C++ g++ #7 34,392 1017 13.92
Go #4 33,812 905 14.85
Go #3 34,028 894 14.91
C++ g++ #2 34,176 692 17.47
Go 32,600 823 19.58
Go #2 33,196 837 27.07
Go #6 32,764 700 27.25
C++ g++ #3 1,976 414 28.53
pidigits
source mem gz cpu
C++ g++ #4 4,220 513 0.71
C++ g++ #5 4,284 798 0.72
Go #4 8,732 683 0.87
Go #3 9,320 603 1.18
Go 9,496 708 1.21
Go #2 9,032 733 1.59
Go #8 9,924 720 2.54
Go #7 8,620 696 5.05
regex-redux
source mem gz cpu
C++ g++ #6 275,924 2850 2.20
C++ g++ #4 203,888 1315 3.39
C++ g++ 207,788 656 3.57
C++ g++ #2 198,316 700 3.69
C++ g++ #5 214,888 852 4.28
Go #5 306,476 810 5.97
C++ g++ #3 217,248 853 18.28
Go #4 355,844 829 34.99
Go #3 358,472 829 67.28
Go 297,048 741 68.45
fasta
source mem gz cpu
C++ g++ #8 2,720 2751 1.52
C++ g++ #2 2,004 1127 1.85
C++ g++ 2,000 1057 1.97
C++ g++ #3 1,964 1307 2.62
C++ g++ #4 1,016 1287 3.36
Go 1,112 1053 3.64
C++ g++ #5 4,540 2344 3.75
Go #2 10,980 1404 3.84
C++ g++ #6 4,564 2324 3.89
Go #3 3,168 1358 3.98
C++ g++ #7   Make Error  
k-nucleotide
source mem gz cpu
C++ g++ #2 156,416 1631 5.92
C++ g++ #3 165,588 1276 14.14
C++ g++ 756,320 1446 14.54
Go #7 159,432 1607 28.49
Go #6 149,712 1590 29.40
Go #4 144,528 1543 30.22
Go #3 149,984 1722 30.25
reverse-complement
source mem gz cpu
C++ g++ #2 499,708 2093 0.64
Go #2 826,796 611 1.94
Go #3 826,544 605 2.13
Go #5 1,483,756 996 2.26
Go #6 1,289,572 1338 2.48
C++ g++ #3 500,008 840 2.62
C++ g++ #6 1,513,136 1832 4.00
C++ g++ 979,988 592 6.34
C++ g++ #5 765,148 720 34.88
Go   Failed  
binary-trees
source mem gz cpu
C++ g++ #7 168,192 890 3.38
C++ g++ #5 200,020 885 4.10
C++ g++ #9 135,652 809 4.16
C++ g++ #3 265,220 945 4.65
C++ g++ #6 265,784 844 4.72
C++ g++ #8 265,808 820 5.05
C++ g++ 1,947,704 754 8.99
C++ g++ #2 265,180 508 22.61
Go #6 411,424 611 29.23
Go #2 632,396 666 48.67
Go #3 328,700 799 50.09
Go #5 394,800 950 50.52
Go 240,292 482 51.02
Go #7 259,088 525 51.41
C++ g++ #4   Make Error  
Go

go version go1.18 linux/amd64

C++ g++

11.2.0-19ubuntu1