The Computer Language
23.03 Benchmarks Game

Go versus Java fastest performance

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
Go #3 8.25 10,936 969 32.92
Java #3 40.36 39,932 1257 40.43
Java 10.71 40,324 1282 42.25
Java #2 46.85 38,492 514 46.91
Go 11.83 11,128 900 47.26
Go #2 11.89 12,708 896 47.47
n-body
source secs mem gz cpu secs
Go #3 6.36 11,244 1200 6.37
Go 6.55 11,244 1310 6.56
Java #5 6.77 40,632 1429 6.82
Java #4 6.86 40,516 1489 6.89
Go #2 6.94 11,244 1215 6.95
Java #2 7.32 40,508 1424 7.37
Java #3 7.38 40,492 1430 7.43
Java 7.76 40,724 1430 7.80
spectral-norm
source secs mem gz cpu secs
Go 5.31 11,244 411 5.32
Go #4 1.42 11,244 548 5.67
Go #2 1.44 11,244 668 5.67
Java #3 1.54 42,324 756 5.93
Java 7.02 41,448 514 7.09
Java #2 2.39 41,092 950 9.25
mandelbrot
source secs mem gz cpu secs
Go #3 3.73 36,140 894 14.86
Go #4 3.73 36,116 905 14.87
Java #4 4.39 101,236 660 16.12
Java #2 4.11 83,924 796 16.21
Java #6 4.27 84,532 802 16.86
Go 4.92 33,624 823 19.65
Java 25.66 40,860 665 25.73
Go #2 6.76 33,928 837 26.97
Go #6 6.83 33,632 700 27.22
Java #3 7.37 88,056 903 29.24
pidigits
source secs mem gz cpu secs
Java #3 0.92 38,380 764 0.95
Go #4 1.01 11,244 683 1.02
Go 1.37 11,244 708 1.38
Java #2 1.34 41,352 938 1.42
Go #3 1.63 11,244 603 1.66
Go #2 1.97 11,244 733 2.00
Go #8 2.46 11,244 720 2.46
Go #7 4.80 23,844 696 5.31
Java 7.44 430,616 800 8.45
regex-redux
source secs mem gz cpu secs
Go #5 4.14 302,280 810 6.25
Java 8.58 767,552 868 16.68
Java #6 5.40 637,728 740 17.08
Java #3 5.45 736,544 929 17.42
Go #4 14.80 360,260 829 34.62
Go #3 27.89 368,528 829 67.15
Go 28.35 317,752 741 67.40
fasta
source secs mem gz cpu secs
Java #4 3.17 40,400 1524 3.27
Java #6 1.16 46,068 2543 3.65
Go 3.78 11,128 1053 3.78
Java #5 1.23 46,180 2473 3.79
Go #3 1.49 11,136 1358 4.10
Go #2 1.26 11,136 1404 4.26
Java #2 4.32 44,708 1257 4.45
k-nucleotide
source secs mem gz cpu secs
Java 5.03 361,196 1812 16.40
Java #6 7.17 357,700 1607 25.04
Java #3 7.12 357,568 1635 25.06
Go #7 7.48 166,412 1607 28.68
Go #6 7.96 148,080 1590 29.25
Go #3 8.28 148,412 1722 29.93
Go #4 9.50 142,624 1543 31.55
Java #4 35.38 201,052 1882 35.83
Java #5 18.82 208,376 2219 40.84
reverse-complement
source secs mem gz cpu secs
Go #2 1.76 814,544 611 1.80
Go #3 1.96 814,352 605 2.00
Go #6 1.33 1,278,596 1338 2.46
Java #6 3.02 2,027,152 752 3.69
Java #5 4.46 1,094,060 1108 4.58
Java #4 5.51 1,886,052 651 5.62
Java #7 24.15 1,032,956 1647 6.20
Go #5   Bad Output  
Go   Failed  
Java #3   Bad Output  
Java #8   Bad Output  
binary-trees
source secs mem gz cpu secs
Java #4 4.47 2,116,292 840 5.15
Java #6 4.88 2,058,280 529 5.59
Java #3 4.91 2,101,240 540 5.61
Java #2 5.05 2,095,888 552 5.73
Java #7 2.52 1,726,148 835 7.89
Go #6 27.82 410,808 611 28.59
Go #5 14.70 406,544 950 57.87
Go #2 14.69 642,688 666 58.49
Go #3 15.07 342,008 799 58.61
Go #7 33.37 247,824 525 60.85
Go 34.62 236,728 482 61.41
Go

go version go1.20 linux/amd64
GOAMD64=v2

Java

openjdk 20 2023-03-21
OpenJDK Runtime Environment
(build 20+36-2344)
OpenJDK 64-Bit Server VM
(build build 20+36-2344
mixed mode, sharing)