C# .NET versus C++ g++ fastest programs

Always look at the source code. These are only the fastest programs.

If they are manually vectorized SIMD, does the host language matter? You might not be interested in the most optimised programs.

Look at "mandelbrot" or "spectral-norm" or other measurement tables. Look at the other programs. Choose which programs you want to compare.

spectral-norm
source	secs	mem	gz	busy	cpu load
C# .NET	0.82	34,824	764	3.00	96% 90% 90% 91%
C++ g++	0.72	1,296	1044	2.86	99% 100% 100% 99%
regex-redux
source	secs	mem	gz	busy	cpu load
C# .NET	1.39	318,212	1869	2.63	50% 21% 88% 30%
C++ g++	1.11	203,844	1315	3.43	76% 63% 100% 71%
pidigits
source	secs	mem	gz	busy	cpu load
C# .NET	0.79	33,196	1168	0.81	98% 4% 0% 1%
C++ g++	0.59	5,024	986	2.36	98% 100% 100% 100%
n-body
source	secs	mem	gz	busy	cpu load
C# .NET	3.18	32,632	2467	3.23	2% 99% 0% 1%
C++ g++	2.17	992	1927	2.23	1% 0% 100% 1%
fasta
source	secs	mem	gz	busy	cpu load
C# .NET	1.22	108,212	1691	4.45	93% 92% 91% 89%
C++ g++	0.77	2,676	2751	1.59	99% 38% 66% 4%
k-nucleotide
source	secs	mem	gz	busy	cpu load
C# .NET	3.21	184,240	2044	11.03	95% 89% 89% 70%
C++ g++	1.96	156,492	1631	5.97	69% 98% 68% 69%
reverse-complement
source	secs	mem	gz	busy	cpu load
C# .NET	1.58	1,029,116	1621	3.88	30% 94% 66% 54%
C++ g++	0.64	499,692	2093	0.64	0% 0% 0% 100%
fannkuch-redux
source	secs	mem	gz	busy	cpu load
C# .NET	8.74	31,712	1225	34.71	99% 99% 100% 99%
C++ g++	3.26	1,992	1528	12.94	98% 100% 100% 100%
mandelbrot
source	secs	mem	gz	busy	cpu load
C# .NET	3.11	65,960	816	12.18	97% 99% 98% 97%
C++ g++	0.84	34,800	3542	3.28	98% 99% 98% 98%
binary-trees
source	secs	mem	gz	busy	cpu load
C# .NET	4.90	1,651,992	705	15.90	77% 79% 79% 89%
C++ g++	0.94	176,440	890	3.33	85% 87% 83% 100%
C# .NET	.NET SDK 6.0.101 Host Version: 6.0.1; Commit: 3a25a7f1cc <ServerGarbageCollection>true</ServerGarbageCollection>
C++ g++	g++ (Ubuntu 11.2.0-7ubuntu2) 11.2.0