cgo

Go versus C++ g++ fastest programs

• vs C# .NET Core
• vs C++
• vs Java
• vs Python
• vs Rust

Always look at the source code.

These are only the fastest programs. Look at the other programs. They may seem more-like a fair comparison to you.

fannkuch-redux
source	secs	mem	gz	busy	cpu load
Go	8.51	2,732	969	34.00	100% 100% 100% 100%
C++ g++	7.92	1,700	980	30.88	100% 99% 98% 93%
pidigits
source	secs	mem	gz	busy	cpu load
Go	1.23	8,580	603	1.26	1% 50% 2% 50%
C++ g++	0.89	4,236	513	0.89	0% 0% 100% 0%
fasta
source	secs	mem	gz	busy	cpu load
Go	1.20	11,452	1404	3.62	73% 70% 84% 74%
C++ g++	0.85	2,020	2711	3.13	92% 92% 92% 93%
n-body
source	secs	mem	gz	busy	cpu load
Go	6.34	1,792	1200	6.44	1% 100% 0% 0%
C++ g++	3.94	1,604	1808	4.02	0% 1% 100% 1%
spectral-norm
source	secs	mem	gz	busy	cpu load
Go	1.43	2,668	548	5.70	99% 99% 99% 100%
C++ g++	0.72	2,348	1044	2.84	100% 99% 99% 99%
reverse-complement
source	secs	mem	gz	busy	cpu load
Go	1.38	1,465,376	1338	2.54	51% 47% 38% 50%
C++ g++	0.63	499,668	2093	0.64	2% 0% 0% 100%
regex-redux
source	secs	mem	gz	busy	cpu load
Go	3.57	382,828	810	5.71	21% 42% 47% 51%
C++ g++	1.03	275,752	2850	2.19	36% 37% 100% 40%
k-nucleotide
source	secs	mem	gz	busy	cpu load
Go	8.03	150,544	1722	30.53	97% 96% 95% 92%
C++ g++	1.98	156,108	1631	5.92	96% 67% 68% 68%
mandelbrot
source	secs	mem	gz	busy	cpu load
Go	3.73	28,764	905	14.88	100% 99% 99% 100%
C++ g++	0.88	34,608	3542	3.47	98% 100% 98% 97%
binary-trees
source	secs	mem	gz	busy	cpu load
Go	12.36	396,032	1007	43.05	88% 86% 89% 85%
C++ g++	1.53	112,820	1270	4.03	99% 59% 52% 53%
Go	go version go1.14.4 linux/amd64
C++ g++	g++ (Ubuntu 9.3.0-10ubuntu2) 9.3.0

• all Go programs & measurements
• all C++ g++ programs & measurements