C# .NET versus C# aot fastest performance

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
C# .NET #8	2.23	31,164	1485	8.60
C# aot #8	2.63	19,768	1485	10.40
C# .NET #2	29.55	30,468	584	29.52
C# aot #2	31.70	19,516	584	31.70
C# aot #9	8.47	19,768	1232	33.77
C# .NET #6	8.65	30,684	1075	34.32
C# .NET #9	9.07	32,108	1232	35.94
C# aot #6	9.06	19,640	1075	36.17
C# aot #3	11.26	19,528	1117	44.64
C# .NET #3	11.39	30,804	1117	44.78
C# aot #7		Bad Output
C# .NET #7		Bad Output
n-body
source	secs	mem	gz	cpu secs
C# .NET #9	3.16	30,044	2480	3.15
C# .NET #4	3.79	30,088	2137	3.77
C# .NET #7	4.79	30,216	1715	4.77
C# .NET #6	4.82	30,196	1754	4.80
C# .NET #3	6.64	31,212	1311	6.62
C# aot #3	6.63	19,776	1311	6.64
C# .NET #2	6.82	31,168	1350	6.81
C# .NET #8	6.82	31,208	1339	6.81
C# aot #8	6.84	19,648	1339	6.85
C# aot #2	6.85	19,648	1350	6.86
C# aot	7.49	19,528	1424	7.50
C# .NET	7.79	31,240	1424	7.77
C# aot #4		Failed
C# aot #9		Failed
C# aot #6		Failed
C# aot #7		Failed
spectral-norm
source	secs	mem	gz	cpu secs
C# aot #5	0.75	19,800	776	2.89
C# .NET #5	0.93	36,020	776	3.34
C# aot	5.32	19,528	480	5.33
C# .NET	5.39	31,320	480	5.38
C# aot #2	1.46	19,656	1084	5.70
C# aot #3	1.47	19,800	890	5.73
C# .NET #2	1.51	31,432	1084	5.75
C# .NET #3	1.56	33,348	890	5.85
mandelbrot
source	secs	mem	gz	cpu secs
C# .NET	3.23	66,812	1980	12.56
C# .NET #9	3.23	66,560	822	12.59
C# aot	3.23	42,496	1980	12.83
C# aot #9	3.22	42,496	822	12.83
C# aot #5	3.83	43,648	851	15.22
C# .NET #5	4.02	64,276	851	15.75
C# .NET #3	6.80	64,652	722	26.77
C# aot #3	6.73	44,416	722	26.77
C# aot #2	45.78	19,528	504	45.79
C# .NET #2	45.95	31,572	504	45.90
pidigits
source	secs	mem	gz	cpu secs
C# aot #6	0.88	19,784	1182	0.89
C# .NET #5	0.92	34,692	990	0.94
C# .NET #6	0.96	32,836	1182	0.94
C# .NET #4	1.36	33,556	1135	1.35
C# aot #4	5.42	19,656	1135	5.42
C# aot #7	6.18	28,748	579	6.63
C# .NET #7	6.49	53,064	579	7.05
C# aot #5	120.43	19,656	990	120.40
regex-redux
source	secs	mem	gz	cpu secs
C# aot #8	1.32	365,320	1881	2.53
C# .NET #8	1.36	388,756	1881	2.60
C# .NET	4.58	847,156	641	4.81
C# .NET #5	2.07	861,292	679	6.28
C# aot	13.29	817,408	641	13.31
C# aot #5	4.27	830,848	679	14.07
C# .NET #4	13.01	960,932	854	43.92
C# aot #4	15.06	929,024	854	50.70
fasta
source	secs	mem	gz	cpu secs
C# aot #5	1.08	70,400	1702	4.12
C# aot	1.49	30,464	2113	5.30
C# .NET #5	1.48	49,500	1702	5.38
C# .NET	1.83	52,060	2113	6.61
k-nucleotide
source	secs	mem	gz	cpu secs
C# aot	3.06	160,512	2046	10.56
C# .NET #6	4.89	187,780	1615	12.63
C# aot #6	5.11	163,104	1615	13.38
C# .NET #7	40.42	762,076	1449	40.86
C# .NET #4	11.44	777,216	1725	41.13
C# aot #4	11.64	751,188	1725	42.51
C# aot #7	42.18	736,564	1449	42.54
C# .NET		Make Error
reverse-complement
source	secs	mem	gz	cpu secs
C# .NET #8	0.55	718,428	2641	1.30
C# .NET	2.96	798,072	1130	3.12
C# .NET #5	2.60	1,026,320	1620	3.58
C# aot	3.48	777,580	1130	3.62
C# aot #7	1.31	908,928	1312	3.65
C# .NET #6	1.58	1,027,952	1627	3.80
C# aot #6	1.65	1,006,208	1627	3.96
C# .NET #7	1.53	942,900	1312	4.16
C# aot #5	2.91	1,003,392	1620	4.59
C# .NET #3	7.33	1,572,192	934	11.43
C# aot #3	8.11	1,549,216	934	12.11
C# aot #8		Failed
binary-trees
source	secs	mem	gz	cpu secs
C# aot #3	4.26	1,927,464	688	13.90
C# .NET #2	4.48	1,624,564	717	14.25
C# aot #2	4.44	1,639,056	717	14.28
C# aot #7	4.35	1,470,976	706	14.35
C# .NET #7	4.54	1,608,796	706	14.53
C# aot	4.55	1,826,788	668	14.72
C# .NET #3	4.84	2,089,712	688	15.89
C# .NET	5.08	2,046,692	668	16.32
C# .NET	.NET SDK 8.0.200 Host Version: 8.0.2 Commit: 1381d5ebd2 <ServerGarbageCollection>true
C# aot	.NET SDK 8.0.200 Host Version: 8.0.2 Commit: 1381d5ebd2 <ServerGarbageCollection>true <PublishAot>true