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	40.76	42,844	1264	40.83
Java	10.98	42,812	1289	43.36
Java #2	44.03	40,916	520	44.09
Java -Xint #2	646.88	34,844	520	647.12
Java -Xint #3	724.53	35,492	1264	724.79
Java -Xint	194.95	35,732	1289	772.19
n-body
source	secs	mem	gz	cpu secs
Java #5	6.78	41,384	1435	6.82
Java #4	6.87	41,188	1495	6.91
Java #2	7.42	41,308	1430	7.46
Java #3	7.47	41,256	1436	7.51
Java	7.85	41,512	1437	7.89
Java -Xint #4	152.29	36,480	1495	152.34
Java -Xint #2	173.31	36,516	1430	173.35
Java -Xint #3	178.93	36,520	1436	178.99
Java -Xint	214.08	36,516	1437	214.15
Java -Xint #5	235.47	36,260	1435	235.55
spectral-norm
source	secs	mem	gz	cpu secs
Java #3	1.66	42,924	762	6.21
Java	7.07	42,268	521	7.13
Java #2	2.40	42,164	956	9.25
Java -Xint	66.36	37,548	521	66.38
Java -Xint #2	16.93	37,300	956	67.39
Java -Xint #3	26.77	37,928	762	104.77
mandelbrot
source	secs	mem	gz	cpu secs
Java #4	4.45	104,488	667	16.20
Java #2	4.13	83,152	802	16.22
Java #6	4.28	83,056	808	16.84
Java	25.70	41,388	671	25.76
Java #3	7.86	83,424	910	30.96
Java -Xint	359.43	36,376	671	359.55
Java -Xint #3	123.45	75,044	910	492.42
Java -Xint #4	172.46	98,700	667	641.60
Java -Xint #2	163.31	74,520	802	651.81
Java -Xint #6	170.34	74,148	808	680.04
pidigits
source	secs	mem	gz	cpu secs
Java #3	0.93	40,860	770	0.96
Java -Xint #3	0.96	36,096	770	0.96
Java #2	1.34	44,524	944	1.42
Java -Xint #2	1.46	38,020	944	1.46
Java	7.61	486,236	807	8.69
Java -Xint	169.47	187,692	807	169.57
regex-redux
source	secs	mem	gz	cpu secs
Java	8.38	666,804	875	16.42
Java #3	5.17	671,372	935	17.04
Java #6	5.57	1,234,928	746	17.17
Java -Xint	511.20	620,232	875	908.60
Java -Xint #6	346.10	1,220,172	746	915.26
Java -Xint #3	350.48	598,176	935	919.31
fasta
source	secs	mem	gz	cpu secs
Java #4	3.15	42,784	1528	3.26
Java #6	1.18	48,408	2549	3.71
Java #5	1.24	48,752	2478	3.81
Java #2	4.35	47,184	1259	4.50
Java -Xint #5	8.78	40,484	2478	23.13
Java -Xint #4	24.99	35,732	1528	24.99
Java -Xint #6	9.00	40,480	2549	30.30
Java -Xint #2	36.75	35,476	1259	36.76
k-nucleotide
source	secs	mem	gz	cpu secs
Java	5.01	368,104	1821	16.33
Java #6	7.18	365,592	1614	25.01
Java #3	7.30	365,348	1642	25.39
Java #4	34.43	195,584	1887	34.79
Java #5	16.05	219,872	2225	38.17
Java -Xint	169.72	354,492	1821	424.92
Java -Xint #4	649.13	187,068	1887	649.37
Java -Xint #5	287.03	206,928	2225	675.05
Java -Xint #6	405.71	353,208	1614	1,348.49
Java -Xint #3	405.61	355,152	1642	1,348.58
reverse-complement
source	secs	mem	gz	cpu secs
Java #6	3.33	2,031,460	760	3.96
Java #5	4.73	1,096,344	1115	4.86
Java #4	5.57	1,889,928	656	5.68
Java #7	23.06	1,036,296	1654	6.31
Java -Xint #6	39.98	2,027,164	760	49.13
Java -Xint #4	82.48	1,882,316	656	82.50
Java -Xint #5	160.63	1,088,900	1115	158.65
Java -Xint #7	615.74	1,029,908	1654	1,436.84
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	4.50	2,081,744	846	5.22
Java #3	4.80	2,076,860	546	5.59
Java #6	4.84	2,097,072	535	5.60
Java #2	4.93	2,067,656	558	5.67
Java #7	2.57	1,728,452	841	8.00
Java -Xint #3	63.72	1,339,436	546	64.37
Java -Xint #6	67.18	1,289,400	535	67.82
Java -Xint #2	67.24	1,271,088	558	67.95
Java -Xint #4	83.92	1,110,452	846	84.71
Java -Xint #7	30.46	1,084,356	841	89.46
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)