Java versus Java -Xint 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
Java #3	39.96	44,308	1264	40.06
Java	10.85	44,612	1289	42.80
Java #2	45.77	42,552	520	45.83
Java #8	45.90	42,568	517	45.97
Java -Xint #3	499.95	36,780	1264	500.14
Java -Xint	133.97	37,284	1289	530.29
Java -Xint #2	697.49	36,236	520	697.74
Java -Xint #8	707.70	36,720	517	707.97
n-body
source	secs	mem	gz	cpu secs
Java #4	6.88	42,028	1495	6.91
Java #5	7.30	43,424	1435	7.36
Java #2	7.48	42,260	1430	7.52
Java #3	7.49	42,292	1436	7.52
Java #8	7.59	42,924	1322	7.64
Java	7.84	42,652	1437	7.88
Java -Xint #4	159.50	37,652	1495	159.56
Java -Xint #8	160.65	37,692	1322	160.71
Java -Xint #3	176.10	37,780	1436	176.16
Java -Xint #2	178.95	37,716	1430	179.00
Java -Xint	187.79	37,816	1437	187.85
Java -Xint #5	242.21	37,820	1435	242.29
spectral-norm
source	secs	mem	gz	cpu secs
Java #8	5.43	43,368	453	5.49
Java #3	1.57	44,160	762	5.93
Java #2	1.61	43,028	956	6.08
Java -Xint #2	16.96	38,692	956	67.27
Java -Xint #8	79.75	38,572	453	79.77
Java -Xint #3	26.20	39,420	762	103.20
mandelbrot
source	secs	mem	gz	cpu secs
Java #2	4.08	82,216	802	16.06
Java #4	4.41	105,000	667	16.14
Java #6	4.19	82,232	808	16.42
Java	24.50	42,272	671	24.57
Java #3	6.96	82,972	910	27.54
Java #8	27.67	45,844	441	27.79
Java -Xint	359.45	37,564	671	359.57
Java -Xint #3	119.76	76,220	910	478.11
Java -Xint #4	162.05	100,116	667	606.17
Java -Xint #8	632.34	36,580	441	632.40
Java -Xint #2	204.60	75,772	802	817.30
Java -Xint #6	213.99	75,776	808	854.15
fasta
source	secs	mem	gz	cpu secs
Java #4	3.28	44,352	1528	3.40
Java #6	1.16	49,848	2549	3.71
Java #5	1.24	49,640	2478	4.13
Java #2	4.45	48,896	1259	4.60
Java #8	10.12	182,140	894	10.66
Java -Xint #5	8.92	41,784	2478	23.38
Java -Xint #4	25.45	37,036	1528	25.46
Java -Xint #6	9.13	41,896	2549	30.76
Java -Xint #2	36.96	36,780	1259	36.97
Java -Xint #8	329.82	181,448	894	329.31
k-nucleotide
source	secs	mem	gz	cpu secs
Java	4.92	427,448	1821	15.77
Java #6	7.27	426,032	1614	25.17
Java #3	7.34	426,540	1642	25.47
Java #4	34.33	197,748	1887	34.67
Java #5	22.10	222,396	2225	48.14
Java #8	81.36	1,559,968	786	83.57
Java -Xint	174.09	358,964	1821	431.66
Java -Xint #4	722.69	188,368	1887	722.99
Java -Xint #5	358.39	208,936	2225	832.08
Java -Xint #3	380.98	358,232	1642	1,244.14
Java -Xint #6	380.79	358,368	1614	1,245.37
Java -Xint #8		Timed Out
reverse-complement
source	secs	mem	gz	cpu secs
Java #6	3.15	2,032,996	760	3.79
Java #5	4.72	1,097,732	1115	4.84
Java #4	5.65	1,891,656	656	5.77
Java #7	23.98	1,037,708	1654	6.26
Java -Xint #6	39.58	2,028,304	760	48.30
Java -Xint #4	80.02	1,883,324	656	80.03
Java -Xint #5	179.32	1,090,164	1115	175.61
Java -Xint #7	733.63	1,031,048	1654	1,704.56
Java #3		Bad Output
Java -Xint #3		Bad Output
binary-trees
source	secs	mem	gz	cpu secs
Java #4	4.41	1,821,244	846	5.14
Java #6	4.87	1,782,568	535	5.63
Java #3	4.85	1,769,500	546	5.65
Java #2	5.09	1,820,068	558	5.83
Java #8	6.57	1,767,108	596	7.29
Java #7	2.62	1,803,192	841	8.14
Java -Xint #3	66.79	1,343,436	546	67.51
Java -Xint #6	67.36	1,378,776	535	68.09
Java -Xint #2	74.30	1,218,004	558	74.96
Java -Xint #8	94.28	1,163,864	596	95.00
Java -Xint #7	32.90	1,078,312	841	96.85
Java -Xint #4	98.08	1,000,460	846	98.84
pidigits
source	secs	mem	gz	cpu secs
* Java #3	0.80	41,900	770	0.83
Java -Xint #3	0.83	37,044	770	0.83
* Java #2	1.29	45,768	944	1.37
Java -Xint #2	1.41	39,092	944	1.41
Java	7.68	482,056	807	8.75
Java -Xint	183.26	188,632	807	183.38
regex-redux
source	secs	mem	gz	cpu secs
Java #2	1.55	372,764	2201	3.16
Java -Xint #2	1.61	359,548	2201	3.19
Java	8.47	575,552	875	16.69
Java #6	5.60	1,237,440	746	17.12
Java #3	5.25	611,476	935	17.25
Java -Xint	555.92	559,068	875	993.20
Java -Xint #6	382.01	1,220,444	746	1,007.09
Java -Xint #3	380.77	564,672	935	1,009.25
Java	java 23 2024-09-17 Java HotSpot(TM) 64-Bit Server VM (build 23+37-2369, mixed mode, sharing)
Java -Xint	java 23 2024-09-17 Java HotSpot(TM) 64-Bit Server VM (build 23+37-2369, interpreted mode, sharing)