Node.js versus Java

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
Java #3	40.03	62,276	1264	1.93	39.96—40.70
Java	10.50	62,824	1289	1.76	42.15—43.19
Node.js #5	11.14	109,359	1320	0.11	44.12—44.75
Java #2	45.42	60,305	520	1.59	46.60—54.76
Java #8	46.67	60,162	517	1.65	52.08—57.09
Node.js #8	58.20	63,136	452	0.11	58.18
n-body
	elapsed				Mean or 95% CI
source	secs	mem	gz	make	cpu secs
Java #4	6.92	60,936	1495	1.76	6.94
Java #5	7.34	61,641	1435	1.63	7.39
Java #2	7.51	60,588	1430	1.66	7.53
Java #3	7.53	60,764	1436	1.65	7.54
Java #8	7.62	61,059	1322	1.65	7.66
Java	7.89	61,207	1437	1.64	7.91
Node.js #6	8.60	66,097	1274	0.11	8.62—8.69
Node.js #8	9.65	65,671	1173	0.12	9.66—9.77
spectral-norm
	elapsed				Mean or 95% CI
source	secs	mem	gz	make	cpu secs
Node.js #7	5.40	65,417	420	0.14	5.40
Node.js	5.41	66,429	326	0.12	5.42—5.62
Java	5.47	61,923	521	1.65	5.51
Java #8	5.47	62,214	453	1.66	5.51
Java #3	1.61	62,992	762	1.70	6.02
Node.js #6	1.61	114,618	1002	0.12	6.03
Java #2	1.64	61,846	956	1.69	6.19
Node.js #8	6.53	66,380	355	0.11	6.53—6.67
mandelbrot
	elapsed				Mean or 95% CI
source	secs	mem	gz	make	cpu secs
Node.js #3	4.05	143,802	1128	0.07	15.87—15.93
Java #4	4.43	125,346	667	1.85	16.14—16.20
Java #2	4.17	100,966	802	1.70	16.33—16.47
Java #6	4.23	101,396	808	1.78	16.65—16.80
Java	24.55	60,981	671	1.74	24.60—24.73
Java #8	27.72	63,488	441	1.63	27.85—27.90
Java #3	7.12	101,405	910	1.66	30.67—35.89
Node.js #2	29.40	73,261	422	0.12	29.42
Node.js	68.65	67,793	380	0.11	70.52—72.09
Node.js #8	70.27	67,498	412	0.09	71.43—72.95
fasta
	elapsed				Mean or 95% CI
source	secs	mem	gz	make	cpu secs
Java #4	3.32	62,530	1528	1.71	3.44
Java #6	1.20	68,858	2549	1.89	3.73
Java #5	1.27	68,436	2478	1.89	4.00—4.17
Java #2	4.49	63,721	1259	1.86	4.68—4.72
* Node.js #5	2.55	117,953	2050	0.14	7.11—7.18
Java #8	10.26	202,498	894	1.75	10.97—11.26
Node.js #8	19.16	73,728	742	0.10	19.41—19.52
Node.js	38.96	70,394	815	0.12	39.72—40.24
k-nucleotide
	elapsed				Mean or 95% CI
source	secs	mem	gz	make	cpu secs
Java	4.95	395,911	1821	2.18	16.20—17.07
Java #3	7.34	440,570	1642	2.09	25.33—26.04
Java #6	7.33	440,021	1614	2.04	25.38—26.07
Java #4	34.47	219,398	1887	2.03	34.92—35.12
Java #5	15.99	242,340	2225	2.25	41.77—45.84
Node.js #3	16.44	452,764	1817	0.12	44.48—45.05
Java #8	80.18	1,478,750	786	2.25	84.45—86.62
Node.js #8	107.03	736,874	678	0.09	109.38—113.28
Node.js #2	37.75	1,894,363	941	0.11	113.17—114.37
Node.js	39.56	1,365,475	1011	0.11	115.80—116.78
reverse-complement
	elapsed				Mean or 95% CI
source	secs	mem	gz	make	cpu secs
Java #6	3.23	2,102,866	760	1.77	3.86
Java #5	4.81	1,143,628	1115	1.68	4.92—5.03
Java #4	5.77	1,956,815	656	1.51	5.90—5.94
* Node.js #2	15.52	764,158	1228	0.13	16.24—16.30
* Node.js #7		Bad Output
Java #7		Bad Output
Java #3		Bad Output
binary-trees
	elapsed				Mean or 95% CI
source	secs	mem	gz	make	cpu secs
Java #4	4.55	1,848,893	846	1.84	5.55—5.91
Java #6	4.88	1,587,278	535	1.66	5.70—5.81
Java #3	4.84	1,661,899	546	1.59	5.65—5.74
Java #2	5.06	1,738,625	558	1.59	5.88—5.97
Java #8	6.56	1,640,554	596	1.62	7.30—7.37
Java #7	2.64	1,787,023	841	1.81	8.18—8.24
Node.js #7	15.99	1,076,969	458	0.11	28.29—28.58
Node.js #6	8.54	1,278,456	752	0.12	30.88—31.03
Node.js #8	19.97	952,320	521	0.13	33.35—33.64
Node.js	8.95	1,401,799	717	0.11	33.88—34.17
pidigits
	elapsed				Mean or 95% CI
source	secs	mem	gz	make	cpu secs
* Java #3	0.84	60,092	770	1.82	0.84
Node.js #4	1.15	71,004	487	0.12	1.16
* Java #2	1.33	64,795	944	1.62	1.39
Java	7.72	423,662	807	1.76	8.77—8.81
Node.js #2	12.19	101,380	405	0.12	12.18—12.39
Node.js #3	12.28	101,482	431	0.14	12.42—12.70
regex-redux
	elapsed				Mean or 95% CI
source	secs	mem	gz	make	cpu secs
Node.js #3	4.31	839,913	675	0.12	5.33
Node.js #4	5.46	1,036,313	471	0.11	5.73—5.82
Java	8.50	532,001	875	1.73	16.76—16.99
Java #6	5.63	1,287,786	746	1.95	17.15—17.44
Java #3	5.33	643,936	935	1.97	17.06—17.25
Java #2		Bad Output
Node.js	v23.0.0
Java	java 23 2024-09-17 Java HotSpot(TM) 64-Bit Server VM (build 23+37-2369, mixed mode, sharing)