The Computer Language
22.05 Benchmarks Game

Fastest cpu secs Free Pascal 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
C++ g++ #4 2,216 1439 40.52
C++ g++ #3 988 593 40.55
Free Pascal 1,872 1024 42.10
C++ g++ #2 2,224 1440 42.64
C++ g++ 2,164 1059 42.76
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
Free Pascal #2 8 1322 6.28
Free Pascal 8 1308 6.28
Free Pascal #3 8 1418 7.16
spectral-norm
source mem gz cpu
C++ g++ #6 1,348 1044 2.85
C++ g++ #5 2,048 1044 5.26
C++ g++ 1,964 452 5.36
Free Pascal #3 1,456 625 5.70
Free Pascal #2 1,376 542 5.70
C++ g++ #8 1,348 1278 6.09
Free Pascal 8 423 11.77
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
Free Pascal #8 31,080 952 15.40
C++ g++ #2 34,176 692 17.47
Free Pascal #7 36,828 924 26.12
Free Pascal #3 8 526 26.53
C++ g++ #3 1,976 414 28.53
Free Pascal #2 32,984 825 29.43
Free Pascal 32,904 825 29.43
Free Pascal #6 35,920 781 29.66
pidigits
source mem gz cpu
C++ g++ #4 4,220 513 0.71
C++ g++ #5 4,284 798 0.72
Free Pascal #3 2,188 487 0.73
Free Pascal #2 2,560 797 4.48
Free Pascal 656 3047 14.64
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
C++ g++ #3 217,248 853 18.28
Free Pascal #2   Failed  
Free Pascal   Failed  
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
C++ g++ #5 4,540 2344 3.75
C++ g++ #6 4,564 2324 3.89
Free Pascal #6 8 1190 5.58
Free Pascal #5 8 1220 5.64
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
reverse-complement
source mem gz cpu
C++ g++ #2 499,708 2093 0.64
C++ g++ #3 500,008 840 2.62
Free Pascal #2 514,916 771 3.70
C++ g++ #6 1,513,136 1832 4.00
C++ g++ 979,988 592 6.34
C++ g++ #5 765,148 720 34.88
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
Free Pascal #6 132,368 936 4.67
C++ g++ #6 265,784 844 4.72
Free Pascal #7 132,372 968 4.98
C++ g++ #8 265,808 820 5.05
Free Pascal #5 132,616 923 5.05
C++ g++ 1,947,704 754 8.99
C++ g++ #2 265,180 508 22.61
C++ g++ #4   Make Error  
Free Pascal

Free Pascal Compiler
version 3.2.2 [2021/05/16]

C++ g++

11.2.0-19ubuntu1