Ruby versus Python 3

How the programs are written matters! Always look at the source code.

If the fastest programs are flagged * possible hand-written vector instructions or "unsafe" or naked ffi, 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	cpu secs	mem	gz	make
Ruby #2	154.32	593.14	23,679	1462
Python 3 #6	943.88	942.63	11,874	391	3.58
Python 3 #4	311.18	1,221.85	28,701	960	5.27
Ruby	1,437.74	1,436.24	17,695	391
Ruby #8	2,060.21	2,058.52	17,691	418
Python 3 #8	2,457.09	2,455.59	11,874	414	5.65
n-body
	elapsed	Mean or 95% CI
source	secs	cpu secs	mem	gz	make
Ruby #3	166.67	166.61—166.69	18,346	1169
Ruby #2	172.30	172.28—172.34	18,043	1143
Ruby #8	320.00	318.33	18,350	1160
Python 3	372.41	371.23	12,198	1201	5.23
Python 3 #2	442.06	440.87	12,554	1247	5.24
Python 3 #8	529.38	528.16	12,497	1172	4.94
Ruby #7	768.29	766.83	18,326	1139
spectral-norm
	elapsed	Mean or 95% CI
source	secs	cpu secs	mem	gz	make
Ruby #4	126.05	126.09—127.01	20,025	333
Ruby #8	175.57	175.87—176.32	19,132	294
Ruby #5	56.52	207.11—207.67	43,725	764
Python 3 #6	349.68	348.48	13,660	334	5.44
Python 3 #4	90.37	352.91	34,693	415	5.41
Python 3 #8	386.45	385.07	12,833	334	5.08
Python 3 #7	109.91	421.84	34,578	425	5.30
mandelbrot
	elapsed	Mean or 95% CI
source	secs	cpu secs	mem	gz	make
Ruby #5	143.13	566.14	118,436	978
Ruby #4	579.40	578.27	169,955	853
Ruby #2	167.51	660.80	126,730	887
Python 3 #7	182.94	723.28	62,173	698	5.52
Python 3 #3	879.41	877.96	45,085	319	5.26
Python 3 #2	237.64	937.87	230,973	790	5.42
Ruby #8	944.53	943.02	50,926	364
Python 3 #5	260.63	1,033.16	61,620	463	5.48
Python 3 #8	1,577.29	1,575.80	45,031	379	4.84
Ruby #3	1,741.44	1,739.76	50,524	313
Ruby #6		Timed Out
Ruby #7		Timed Out
fasta
	elapsed	Mean or 95% CI
source	secs	cpu secs	mem	gz	make
Ruby #6	34.17	34.26—34.71	119,271	1097
Python 3 #3	39.03	38.30—47.80	12,218	1007	5.32
Python 3 #2	39.06	38.61—46.82	12,415	1126	5.21
Ruby #3	43.78	43.86—44.10	119,243	1035
Python 3 #5	27.95	54.20—54.96	1,190,347	1951	5.52
Python 3	57.39	56.94—65.76	12,100	823	5.06
Ruby #2	82.88	83.00—83.22	143,434	747
Ruby #5	99.47	99.61—100.05	19,194	1000
Ruby #4	129.31	129.79—130.82	305,578	864
Python 3 #8	153.17	153.78—158.43	11,915	738	5.04
Ruby #8	188.42	188.50—189.24	17,822	700
k-nucleotide
	elapsed	Mean or 95% CI
source	secs	cpu secs	mem	gz	make
Python 3 #3	46.55	182.32—187.37	674,185	1970	5.68
Python 3 #4	76.67	233.00—239.32	523,751	663	4.89
Python 3 #8	234.08	235.36—236.89	642,265	525	5.15
Python 3	234.20	235.10—237.16	515,047	499	5.34
Python 3 #9	66.67	236.43—238.45	392,184	614	4.09
Ruby #7	243.79	246.45—258.00	399,401	792
Ruby #2	262.22	262.46—263.81	179,548	426
Ruby #3	263.08	264.95—272.82	207,466	546
Ruby	87.55	317.80	478,077	583
Ruby #8	519.31	517.57	872,055	529
reverse-complement
	elapsed	Mean or 95% CI
source	secs	cpu secs	mem	gz	make
Python 3 #3	4.96	4.95	523,801	803	5.28
Python 3 #5	4.18	7.46—7.50	2,418,156	960	5.36
Python 3 #2	10.09	10.13—10.24	1,837,285	440	5.32
Python 3	10.43	10.43—10.59	2,040,713	484	5.28
Python 3 #6	7.59	11.07—11.11	2,795,930	821	5.37
Ruby #4	6.01	11.72—11.85	3,079,053	608
Python 3 #4	13.47	13.44—13.88	4,109,324	343	5.05
Ruby #5	13.63	13.44—14.87	1,647,829	301
Ruby #3	8.46	16.69—17.00	4,884,902	490
Ruby #2	19.54	19.56—20.02	519,827	272
Ruby	13.29	25.90—26.00	6,528,086	521
binary-trees [ Contentious. Different approaches. ]
	elapsed	Mean or 95% CI
source	secs	cpu secs	mem	gz	make
Ruby #4	47.09	47.06—47.17	489,144	371
Ruby #2	48.03	48.39—49.02	487,801	385
Ruby	48.14	48.56—49.08	487,592	383
Ruby #3	49.67	50.26—50.90	523,936	407
Ruby #5	18.86	53.95—54.17	2,280,051	1016
Python 3 #2	100.49	100.69—101.09	281,829	344	5.08
Python 3 #4	33.37	121.32—121.68	460,771	481	5.57
Python 3	34.85	123.08—123.98	445,649	597	5.16
Python 3 #5	35.37	125.71—126.12	806,117	669	5.30
Python 3 #3	51.88	148.91—149.87	819,077	1247	5.39
pidigits [ Contentious. Different libraries. ]
	elapsed	Mean or 95% CI
source	secs	cpu secs	mem	gz	make
* Python 3 #3	1.35	1.28—1.32	20,009	573	5.34
Python 3 #4	4.63	4.60	12,718	348	4.88
Ruby	17.94	18.01—18.15	53,740	524
Python 3 #5		Empty
Ruby #2		Empty
Ruby #5		Empty
regex-redux [ Contentious. Different libraries. ]
	elapsed	Mean or 95% CI
source	secs	cpu secs	mem	gz	make
* Python 3 #2	1.41	2.65	191,300	1411	5.48
Python 3	8.96	16.47—16.75	459,624	515	5.47
Ruby #2	23.42	23.49—23.62	221,233	444
Ruby #3	12.42	24.39—24.49	217,313	730
Ruby #9	30.77	30.80—30.93	221,237	340
Ruby	ruby 3.4.0dev (2024-12-25 master f450108330) +YJIT +PRISM [x86_64-linux]
Python 3	Python 3.13.0