Go versus Java 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	8.36	19,656	975	33.34
Java	10.04	42,708	1289	39.47
Java #3	40.81	42,920	1264	40.91
Java #2	44.33	41,012	520	44.38
Go	11.77	19,656	906	46.92
Go #2	11.83	19,656	903	47.16
n-body
source	secs	mem	gz	cpu secs
Go #3	6.38	19,688	1207	6.39
Java #5	6.79	41,476	1435	6.83
Java #4	6.91	41,364	1495	6.95
Go	7.00	19,688	1316	7.02
Go #2	7.03	19,688	1222	7.04
Java #2	7.58	41,440	1430	7.62
Java #3	7.63	41,352	1436	7.67
Java	7.89	41,616	1437	7.93
spectral-norm
source	secs	mem	gz	cpu secs
Go	5.33	20,116	417	5.34
Go #4	1.43	20,340	555	5.68
Go #2	1.50	20,148	674	5.69
Java #3	1.69	43,028	762	6.41
Java	7.08	42,384	521	7.14
Java #2	2.44	42,180	956	9.47
mandelbrot
source	secs	mem	gz	cpu secs
Go #3	3.77	35,328	900	14.99
Go #4	3.77	35,328	912	15.00
Java #2	4.14	81,668	802	16.25
Java #4	4.44	104,696	667	16.25
Java #6	4.31	81,888	808	16.97
Go	5.01	33,024	829	19.93
Java	25.75	41,428	671	25.81
Go #2	6.86	33,152	843	27.28
Go #6	6.91	32,896	707	27.48
Java #3	7.42	81,216	910	29.33
pidigits
source	secs	mem	gz	cpu secs
Java #3	0.94	40,944	770	0.96
Go #4	0.96	19,700	689	0.98
Go	1.34	19,700	715	1.36
Java #2	1.35	44,528	944	1.42
Go #3	1.65	19,700	610	1.69
Go #2	2.18	19,700	740	2.23
Go #8	2.51	19,700	727	2.51
Go #7	5.19	19,700	702	5.98
Java	7.63	491,600	807	8.66
regex-redux
source	secs	mem	gz	cpu secs
Java #8	1.62	372,312	2201	3.20
Go #5	3.22	320,724	817	5.39
Java	8.58	586,528	875	16.95
Java #6	5.59	1,235,356	746	17.14
Java #3	5.25	629,428	935	17.37
Go #4	14.78	397,240	832	36.01
Go #3	25.54	370,524	836	61.42
Go	25.87	311,444	749	64.23
fasta
source	secs	mem	gz	cpu secs
Java #4	3.16	42,812	1528	3.27
Java #6	1.18	48,364	2549	3.74
Go	3.74	19,664	1055	3.74
Go #2	1.27	19,664	1405	4.07
Go #3	1.50	19,664	1362	4.08
Java #5	1.26	48,824	2478	4.17
Java #2	4.39	47,624	1259	4.56
k-nucleotide
source	secs	mem	gz	cpu secs
Java	5.02	369,032	1821	16.31
Java #3	7.26	365,384	1642	25.09
Java #6	7.26	365,680	1614	25.28
Go #7	7.53	162,816	1613	28.78
Go #6	8.26	145,152	1596	30.01
Go #3	8.29	145,152	1729	30.02
Go #4	9.22	139,776	1552	30.55
Java #4	34.70	195,564	1887	35.08
Java #5	20.44	218,932	2225	44.56
reverse-complement
source	secs	mem	gz	cpu secs
Go #2	2.24	800,512	614	2.34
Go #3	2.50	800,128	609	2.60
Go #6	1.93	1,246,404	1340	3.43
Java #6	3.40	2,031,576	760	4.06
Java #5	4.78	1,096,264	1115	4.92
Java #4	5.59	1,890,020	656	5.71
Java #7	23.61	1,036,152	1654	6.24
Go #5		Bad Output
Go		Failed
Java #3		Bad Output
Java #8		Bad Output
binary-trees
source	secs	mem	gz	cpu secs
Java #4	4.46	1,957,564	846	5.19
Java #3	4.90	2,032,184	546	5.67
Java #6	5.02	2,065,280	535	5.79
Java #2	5.11	2,064,188	558	5.83
Java #7	2.59	1,718,620	841	8.08
Go #6	27.68	404,224	618	29.07
Go #2	13.86	594,740	672	55.04
Go #5	14.29	317,028	957	56.60
Go #3	14.72	343,248	806	57.03
Go	31.84	237,200	488	59.20
Go #7	31.79	250,476	531	59.90
Go	go version go1.22.3 linux/amd64 GOAMD64=v2
Java	java 22 2024-03-19 Java HotSpot(TM) 64-Bit Server VM (build 22+36-2370, mixed mode, sharing)