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	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
Java -Xint #2	627.34	35,140	520	627.56
Java -Xint #3	728.10	35,548	1264	728.36
Java -Xint	195.32	35,688	1289	773.57
n-body
source	secs	mem	gz	cpu secs
Java #5	6.79	41,476	1435	6.83
Java #4	6.91	41,364	1495	6.95
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
Java -Xint #4	151.83	36,432	1495	151.88
Java -Xint #2	170.04	36,456	1430	170.10
Java -Xint #3	179.29	36,472	1436	179.34
Java -Xint	213.71	36,712	1437	213.78
Java -Xint #5	235.13	36,584	1435	235.21
spectral-norm
source	secs	mem	gz	cpu secs
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
Java -Xint	66.64	37,624	521	66.66
Java -Xint #2	16.94	37,364	956	67.45
Java -Xint #3	26.52	38,144	762	104.99
mandelbrot
source	secs	mem	gz	cpu secs
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
Java	25.75	41,428	671	25.81
Java #3	7.42	81,216	910	29.33
Java -Xint	360.79	36,456	671	360.89
Java -Xint #3	123.58	75,096	910	493.16
Java -Xint #4	169.49	98,792	667	623.32
Java -Xint #2	167.57	74,560	802	668.97
Java -Xint #6	169.59	74,596	808	677.13
pidigits
source	secs	mem	gz	cpu secs
Java #3	0.94	40,944	770	0.96
Java -Xint #3	0.97	36,068	770	0.97
Java #2	1.35	44,528	944	1.42
Java -Xint #2	1.46	38,108	944	1.46
Java	7.63	491,600	807	8.66
Java -Xint	169.97	187,788	807	170.09
regex-redux
source	secs	mem	gz	cpu secs
Java -Xint #8	1.71	359,788	2201	3.20
Java #8	1.62	372,312	2201	3.20
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
Java -Xint	511.95	533,008	875	910.97
Java -Xint #6	350.48	1,220,080	746	917.70
Java -Xint #3	348.75	557,332	935	921.34
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
Java #5	1.26	48,824	2478	4.17
Java #2	4.39	47,624	1259	4.56
Java -Xint #5	8.93	40,668	2478	23.48
Java -Xint #4	25.08	35,808	1528	25.09
Java -Xint #6	9.07	40,680	2549	30.60
Java -Xint #2	36.98	35,556	1259	36.99
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
Java #4	34.70	195,564	1887	35.08
Java #5	20.44	218,932	2225	44.56
Java -Xint	170.38	354,848	1821	426.94
Java -Xint #4	652.29	187,136	1887	652.55
Java -Xint #5	287.75	207,376	2225	677.27
Java -Xint #3	406.38	353,036	1642	1,352.37
Java -Xint #6	407.44	354,940	1614	1,353.73
reverse-complement
source	secs	mem	gz	cpu secs
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
Java -Xint #6	40.00	2,027,292	760	49.20
Java -Xint #4	82.92	1,882,428	656	82.95
Java -Xint #5	163.39	1,089,208	1115	159.86
Java -Xint #7	634.12	1,029,688	1654	1,464.57
Java #3		Bad Output
Java -Xint #3		Bad Output
Java -Xint #8		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
Java -Xint #3	64.64	1,307,260	546	65.30
Java -Xint #6	67.43	1,323,672	535	68.11
Java -Xint #2	67.55	1,276,284	558	68.21
Java -Xint #4	84.28	1,067,788	846	84.92
Java -Xint #7	30.62	1,093,140	841	89.85
Java	java 22 2024-03-19 Java HotSpot(TM) 64-Bit Server VM (build 22+36-2370, mixed mode, sharing)
Java -Xint	java 22 2024-03-19 Java HotSpot(TM) 64-Bit Server VM (build 22+36-2370, interpreted mode, sharing)