Julia versus Classic Fortran

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
	elapsed				Mean or 95% CI
source	secs	mem	gz	make	cpu secs
* Julia #2	8.59	333,136	1077	0.12	31.99
* Julia #3	9.44	333,103	896	0.12	35.60—35.68
Classic Fortran	39.02	3,191	608	2.95	38.97—39.21
Classic Fortran #3	10.15	12,329	1164	3.36	40.49
Julia	42.56	309,703	441	0.10	42.61
n-body
	elapsed				Mean or 95% CI
source	secs	mem	gz	make	cpu secs
Julia #5	3.80	345,936	1129	0.11	3.84—3.96
Classic Fortran #6	4.22	2,146	1530	2.93	4.23
Classic Fortran #2	5.39	2,146	1507	2.88	5.39
Classic Fortran	5.45	2,142	1400	3.14	5.45
Classic Fortran #5	5.97	2,150	1669	3.04	5.99—6.10
Classic Fortran #4	6.18	2,146	1183	2.96	6.23
Classic Fortran #3	6.33	2,146	1311	3.03	6.36—6.40
Julia #4	7.17	415,039	1168	0.13	7.23
Julia #3	8.05	415,158	1548	0.11	8.10—8.14
Julia #2	28.79	415,015	1084	0.09	29.10—29.76
spectral-norm
	elapsed				Mean or 95% CI
source	secs	mem	gz	make	cpu secs
Classic Fortran #2	2.68	4,239	520	3.16	2.67
Classic Fortran #3	0.72	5,259	644	3.06	2.86—2.91
Julia #4	1.30	315,802	435	0.14	3.72
Julia #2	2.83	414,999	377	0.09	5.80—5.84
mandelbrot
	elapsed				Mean or 95% CI
source	secs	mem	gz	make	cpu secs
Julia #7	1.53	357,155	629	0.10	4.86
Julia #2	1.56	356,286	634	0.12	4.96
Julia #3	1.61	376,521	589	0.13	5.16—5.20
Julia #4	2.07	368,177	583	0.12	5.19
Classic Fortran #7	1.44	79,483	965	2.98	5.64
Julia #5	1.76	381,854	580	0.12	5.84
Julia #6	2.25	368,796	571	0.08	5.88
Classic Fortran #6	3.27	79,585	669	2.68	10.80
Julia	26.66	339,251	379	0.09	26.72
Classic Fortran #4	10.40	79,577	626	2.70	26.84—26.88
Classic Fortran #5	45.35	45,691	528	2.56	45.36—45.41
fasta
	elapsed				Mean or 95% CI
source	secs	mem	gz	make	cpu secs
Julia #2	1.28	317,960	1094	0.06	1.32
Classic Fortran #4	2.06	2,142	1355	3.21	2.06
Julia #5	2.67	334,729	957	0.12	2.72
Julia #4	2.73	320,463	1053	0.12	2.77
* Julia #7	1.98	405,914	1189	0.10	4.86—5.21
* Julia #6	2.25	391,623	1213	0.13	4.70—4.91
Classic Fortran #3	6.98	2,146	1217	2.98	7.05—7.16
Classic Fortran	7.19	2,142	1193	2.78	7.23—7.31
Julia #3	11.67	318,525	901	0.10	11.72—11.76
k-nucleotide
	elapsed				Mean or 95% CI
source	secs	mem	gz	make	cpu secs
Julia #6	6.82	524,403	965	0.08	14.29—14.70
Julia #7	9.91	576,082	1379	0.10	24.02—24.48
Julia	132.16	1,696,596	703	0.13	133.46—134.30
Classic Fortran		Empty
reverse-complement
	elapsed				Mean or 95% CI
source	secs	mem	gz	make	cpu secs
Julia #7	1.75	1,128,034	531	0.12	1.83
Julia #9	2.08	1,330,057	456	0.12	2.17
Classic Fortran	4.24	1,012,376	1026	2.89	4.25
Julia #2	29.38	2,259,771	464	0.13	29.83—30.87
Classic Fortran #2	45.32	790,282	778	3.25	45.50—45.79
binary-trees
	elapsed				Mean or 95% CI
source	secs	mem	gz	make	cpu secs
Classic Fortran #2	2.22	141,066	1155	2.78	6.99—7.03
Julia #2	12.60	552,776	430	0.11	13.45—14.61
Julia #4	14.42	551,617	378	0.07	15.81—15.87
Julia #3	7.34	569,876	640	0.12	19.54—21.11
Classic Fortran	32.31	540,062	780	2.66	32.35—32.48
Julia #5	22.15	1,392,615	396	0.08	60.91—62.04
pidigits
	elapsed				Mean or 95% CI
source	secs	mem	gz	make	cpu secs
* Classic Fortran #4	0.74	5,399	987	2.35	0.74
* Julia #3	1.13	307,601	512	0.12	1.24
* Julia #2	1.24	315,621	686	0.13	1.31
Julia #4	3.76	414,806	531	0.11	3.86—3.92
regex-redux
	elapsed				Mean or 95% CI
source	secs	mem	gz	make	cpu secs
* Classic Fortran	0.98	179,618	2229	3.02	3.11—3.15
* Julia #5	1.91	519,856	766	0.12	3.18
* Julia #4	2.00	522,338	772	0.09	3.26—3.33
* Julia #3	2.18	671,347	630	0.12	3.58
Julia	5.19	714,330	414	0.11	5.26—5.35
Julia	julia version 1.11.1
Classic Fortran	Fortran Compiler Classic 2021.12.0 20240222