[Info-vax] ADA and VMS (was Safer programming languages)

[Arne Vajhøj]

On 11/16/2021 7:15 AM, Bill Gunshannon wrote:
> I am interested in whether or not ADD A TO B GIVING C is faster, slower
> or the same between Ada and C.( and other languages as well!)

For some random synthetic micro-benchmark:

Language 	Compiler/Runtime 	Integer performance 	Floating point 
performance 	String performance 	Total performance
C 	GCC 11.1 -O3 64 bit 	1670 	239 	23.31 	210.32
C 	MSVC++ VS19 /O2 64 bit 	1055 	239 	13.76 	151.39
C 	LLVM 12.0 -O3 64 bit 	557 	239 	19.54 	137.53
Java 	SUN 17.0 Server 64 bit 	548 	209 	13.50 	115.63
Java 	SUN 11.0 Server 64 bit 	473 	209 	13.19 	109.25
C# 	.NET 5.0 64 bit 	668 	209 	8.22 	104.70
Java 	SUN 1.8.0 Server 64 bit 	473 	209 	9.25 	97.06
C# 	.NET 4.0 /o+ 64 bit 	556 	185 	8.01 	93.75
Java 	SUN 11.0 Graal 64 bit 	417 	185 	10.67 	93.72
C# 	.NET 4.0 64 bit 	555 	185 	7.91 	93.30
Ada 	Gnat 2017 -gnatp -O3 64 bit 	554 	238 	5.74 	91.13
Ada 	Gnat 2017 -O3 64 bit 	505 	238 	5.73 	88.31
C 	MSVC++ VS19 64 bit 	371 	134 	12.70 	85.79
C 	GCC 11.1 64 bit 	278 	139 	16.31 	85.74
Ada 	Gnat 2017 -gnatp 64 bit 	276 	138 	5.44 	59.17
Python 	PyPy 7.3 (Python 3.7) 64 bit 	401 	207 	2.31 	57.66
Pascal 	FPC 3.2 -O4 64 bit 	417 	186 	2.41 	57.18
Ada 	Gnat 2017 64 bit 	256 	138 	5.10 	56.48
C 	LLVM 12.0 64 bit 	103 	134 	12.35 	55.45
Pascal 	FPC 3.2 64 bit 	278 	145 	2.40 	45.91
PHP 	PHP 7.4 GCC 64 bit 	22 	34 	0.67 	7.91
PHP 	PHP 7.4 MSVC++ 64 bit 	9 	13 	1.39 	5.37
Python 	CPython 3.6 GCC 64 bit 	6 	8 	0.76 	3.30
Python 	CPython 3.6 MSVC++ 64 bit 	5 	5 	0.44 	2.22

Note that this micro-benchmark is not likely to match any real-world 
workload.

More results and source code available at:

   https://www.vajhoej.dk/arne/articles/perf.html

Arne