x64 Ubuntu : Intel® Q6600® one core
Computer Language Benchmarks Game      [[ Help ]]

- all benchmarks - n-body fannkuch-redux meteor-contest fasta fasta-redux spectral-norm reverse-complement mandelbrot k-nucleotide regex-dna pidigits chameneos-redux thread-ring binary-trees - all languages - Ada 2005 GNAT ATS C GNU gcc Clojure C# Mono C++ GNU g++ Clean Erlang HiPE F# Mono Fortran Intel Go Haskell GHC Java 7 -server JavaScript V8 Lisp SBCL Lua OCaml Pascal Free Pascal Perl PHP Python 3 Racket Ruby 1.9 Ruby JRuby Scala Smalltalk VisualWorks

÷ Ada 2005 GNAT ATS C GNU gcc Clojure C# Mono C++ GNU g++ Clean Erlang HiPE F# Mono Fortran Intel Go Haskell GHC Java 7 -server JavaScript V8 Lisp SBCL Lua OCaml Pascal Free Pascal Perl PHP Python 3 Racket Ruby 1.9 Ruby JRuby Scala Smalltalk VisualWorks

 Step 1 : Are the Ada 2005 GNAT programs faster? At a glance.

This chart shows 3 comparisons - Time-used, Memory-used and Code-used ~ speed and size.

Each chart bar shows, for one unidentified benchmark, how much the fastest Ada 2005 GNAT program used compared to the fastest C++ GNU g++ program.

Look at speed another way - look at a box plot of Time-used data.

 Step 2 : Are the Ada 2005 GNAT programs faster? Approximately.

This table shows 3 comparisons - Time-used, Memory-used and Code-used ~ speed and size.

Each table row shows, for one named benchmark, how much the fastest Ada 2005 GNAT program used compared to the fastest C++ GNU g++ program.

Ada 2005 GNAT used what fraction? used how many times more?
Benchmark	Time	Memory	Code
fasta	1/2	4×	2×
binary-trees	±	1/2	2×
mandelbrot	±	±	2×
pidigits	±	±	2×
fasta-redux	±	2×	±
n-body	±	4×	±
fannkuch-redux	±	2×	±
spectral-norm	2×	3×	2×
reverse-complement	3×	1/2	1/3
regex-dna	3×	1/2	4×
k-nucleotide	4×	2×	±

Ada 2005 GNAT used what fraction? used how many times more?
Time-used	|-	|---	25%	median	75%	---|	-|
(Elapsed secs)	1/2	1/2	±	±	2×	4×	4×

± read the measurements and then read the program source code.

 Step 3 : Are the Ada 2005 GNAT programs faster? Measurements.

This table shows 5 measurements - CPU Time, Elapsed Time, Memory, Code and ≈ CPU Load ~ speed and size.

For each named benchmark, measurements of the fastest Ada 2005 GNAT program are shown for comparison against measurements of the fastest C++ GNU g++ program.

Program Source Code	CPU secs	Elapsed secs	Memory KB	Code B	≈ CPU Load
fasta
Ada 2005 GNAT	4.06	4.07	1,488	2186	0% 0% 0% 100%
C++ GNU g++	6.16	6.16	356	1266	0% 0% 0% 100%
binary-trees
Ada 2005 GNAT	14.43	14.45	158,368	2167	0% 0% 0% 100%
C++ GNU g++	17.23	17.29	296,252	892	0% 0% 0% 100%
mandelbrot
Ada 2005 GNAT	22.73	22.75	30,328	1805	3% 0% 0% 100%
C++ GNU g++	24.28	24.29	32,300	1017	0% 0% 0% 100%
pidigits
Ada 2005 GNAT	2.28	2.29	2,060	1254	0% 0% 0% 100%
C++ GNU g++	2.27	2.27	1,648	682	0% 0% 0% 100%
fasta-redux
Ada 2005 GNAT	2.02	2.02	1,480	1909	0% 0% 0% 100%
C++ GNU g++	2.00	2.00	816	1474	1% 1% 0% 100%
n-body
Ada 2005 GNAT	22.18	22.19	1,556	1874	0% 0% 0% 100%
C++ GNU g++	19.30	19.31	424	1659	0% 0% 0% 100%
fannkuch-redux
Ada 2005 GNAT	62.36	62.38	1,940	1973	0% 0% 0% 100%
C++ GNU g++	50.35	50.36	1,236	1440	0% 0% 0% 100%
spectral-norm
Ada 2005 GNAT	16.33	16.34	1,920	1702	0% 0% 0% 100%
C++ GNU g++	9.99	10.00	756	1044	0% 0% 0% 100%
reverse-complement
Ada 2005 GNAT	2.76	2.76	123,776	885	0% 0% 0% 100%
C++ GNU g++	0.87	0.89	229,516	2275	0% 0% 0% 100%
regex-dna
Ada 2005 GNAT	18.75	18.76	100,200	2771	0% 0% 0% 100%
C++ GNU g++	5.39	5.40	194,088	695	0% 0% 0% 100%
k-nucleotide
Ada 2005 GNAT	35.51	35.56	256,120	4865	0% 0% 0% 100%
C++ GNU g++	9.85	9.87	142,124	3415	0% 0% 1% 100%

 Step 4 : Are there other Ada 2005 GNAT programs for these benchmarks?

Remember - those are just the fastest Ada 2005 GNAT and C++ GNU g++ programs measured on this OS/machine. Check if there are other implementations of these benchmark programs for Ada 2005 GNAT.

Ada 2005 GNAT ATS C GNU gcc Clojure C# Mono C++ GNU g++ Clean Erlang HiPE F# Mono Fortran Intel Go Haskell GHC Java 7 -server JavaScript V8 Lisp SBCL Lua OCaml Pascal Free Pascal Perl PHP Python 3 Racket Ruby 1.9 Ruby JRuby Scala Smalltalk VisualWorks

Maybe one of those other Ada 2005 GNAT programs is fastest on a different OS/machine.

 Step 5 : Are there other faster programs for these benchmarks?

Remember - those are just the fastest Ada 2005 GNAT and C++ GNU g++ programs measured on this OS/machine. Check if there are faster implementations of these benchmark programs for other programming languages.

n-body fannkuch-redux meteor-contest fasta fasta-redux spectral-norm reverse-complement mandelbrot k-nucleotide regex-dna pidigits chameneos-redux thread-ring binary-trees

Maybe one of those other programs is fastest on a different OS/machine.

 Ada 2005 GNAT : large-scale safety-critical software 

book Ada Distilled: An introduction to Ada Programming for Experienced Computer Programmers, Richard Riehle, 2003 (pdf)

wikibook Ada Programming

GNAT 4.6

gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5)

Home Page: The Libre Site

Download: Download GNAT GPL Edition

  Home   Conclusions   License   Help