Free Pascal versus Go 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
Go #3	8.33	19,664	975	33.25
Free Pascal	10.58	19,664	1032	42.13
Go	11.74	19,664	906	46.77
Go #2	11.79	19,664	903	46.97
n-body
source	secs	mem	gz	cpu secs
Free Pascal	6.28	19,680	1315	6.28
Free Pascal #2	6.28	19,680	1328	6.28
Go #3	6.37	19,808	1207	6.38
Go	7.00	19,680	1316	7.02
Go #2	7.02	19,680	1222	7.03
Free Pascal #3	7.16	19,680	1424	7.16
spectral-norm
source	secs	mem	gz	cpu secs
Go	5.32	19,824	417	5.33
Go #2	1.53	19,824	674	5.67
Go #4	1.44	19,824	555	5.67
Free Pascal #3	1.44	19,824	632	5.70
Free Pascal #2	1.45	19,696	548	5.71
Free Pascal	11.77	19,696	429	11.77
mandelbrot
source	secs	mem	gz	cpu secs
Go #4	3.76	35,328	912	14.92
Go #3	3.76	35,456	900	14.94
Free Pascal #8	3.90	33,024	958	15.47
Go	5.01	33,408	829	19.98
Free Pascal #7	6.55	36,992	930	26.05
Free Pascal #3	26.52	19,680	533	26.52
Go #2	6.85	33,152	843	27.29
Go #6	6.89	32,768	707	27.40
Free Pascal #2	10.96	33,024	833	29.39
Free Pascal	10.98	33,024	833	29.41
Free Pascal #6	7.45	36,096	788	29.64
pidigits
source	secs	mem	gz	cpu secs
Free Pascal #3	0.87	19,824	493	0.87
Go #4	0.95	19,808	689	0.97
Go	1.35	19,696	715	1.37
Go #3	1.58	19,824	610	1.62
Go #2	2.13	19,824	740	2.19
Go #8	2.49	19,696	727	2.50
Free Pascal #2	5.36	19,696	802	5.36
Go #7	5.12	19,824	702	5.88
Free Pascal	14.63	19,696	3054	14.63
regex-redux
source	secs	mem	gz	cpu secs
Go #5	3.17	320,972	817	5.38
Free Pascal	5.51	103,016	1300	5.51
Go #4	14.51	368,680	832	34.26
Go	25.58	345,472	749	61.95
Go #3	25.72	402,968	836	62.19
fasta
source	secs	mem	gz	cpu secs
Go	3.73	19,804	1055	3.74
Go #2	1.26	19,672	1405	4.03
Go #3	1.50	19,664	1362	4.08
Free Pascal #6	5.58	19,676	1196	5.58
Free Pascal #5	5.64	19,792	1225	5.64
k-nucleotide
source	secs	mem	gz	cpu secs
Go #7	7.52	162,944	1613	28.68
Go #6	8.17	145,152	1596	29.90
Go #3	8.38	145,152	1729	30.32
Go #4	9.07	139,904	1552	30.33
reverse-complement
source	secs	mem	gz	cpu secs
Go #2	2.21	802,176	614	2.30
Go #3	2.47	802,048	609	2.56
Go #6	1.84	1,249,840	1340	3.30
Free Pascal #2	3.77	525,048	773	3.77
Go #5		Bad Output
Go		Failed
binary-trees
source	secs	mem	gz	cpu secs
Free Pascal #5	2.09	132,608	929	4.98
Free Pascal #6	2.09	132,608	939	4.99
Free Pascal #7	2.12	132,608	975	5.07
Go #6	27.61	404,608	618	29.03
Go #2	13.87	601,252	672	55.04
Go #5	14.37	308,092	957	56.80
Go #3	14.86	323,544	806	57.39
Go	30.97	262,396	488	57.95
Go #7	33.10	292,588	531	61.68
Free Pascal	Free Pascal Compiler version 3.2.2 [2021/05/16]
Go	go version go1.22.0 linux/amd64 GOAMD64=v2