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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++ Erlang HiPE F# Mono Fortran Intel Go Haskell GHC Java 7 -server Lisp SBCL OCaml Pascal Free Pascal Perl PHP Python 3 Racket Ruby 1.9 Ruby JRuby Scala

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

 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-redux	±	2×	±
fasta	±	4×	2×
binary-trees	±	1/2	2×
pidigits	±	±	2×
fannkuch-redux	±	2×	±
n-body	±	4×	±
spectral-norm	2×	4×	2×
regex-dna	3×	±	5×
k-nucleotide	3×	2×	±
reverse-complement	5×	1/2	1/3
mandelbrot	8×	1/33	1/2

Ada 2005 GNAT used what fraction? used how many times more?
Time-used	|-	|---	25%	median	75%	---|	-|
(Elapsed secs)	±	±	±	±	3×	6×	8×

± 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-redux
Ada 2005 GNAT	2.42	2.43	1,228	1909	0% 0% 0% 100%
C++ GNU g++	2.93	2.94	616	1474	1% 0% 0% 100%
fasta
Ada 2005 GNAT	5.35	5.35	1,228	2186	0% 0% 0% 100%
C++ GNU g++	6.30	6.31	288	1266	0% 0% 100% 0%
binary-trees
Ada 2005 GNAT	18.22	5.48	115,836	2167	78% 79% 82% 94%
C++ GNU g++	17.07	5.78	178,988	892	90% 71% 77% 59%
pidigits
Ada 2005 GNAT	2.76	2.76	1,800	1254	0% 0% 0% 100%
C++ GNU g++	2.76	2.76	1,452	682	0% 0% 100% 0%
fannkuch-redux
Ada 2005 GNAT	72.07	18.13	1,676	1973	99% 100% 99% 100%
C++ GNU g++	61.42	15.77	1,020	1439	100% 97% 97% 96%
n-body
Ada 2005 GNAT	24.86	24.87	1,232	1740	0% 0% 100% 0%
C++ GNU g++	20.13	20.14	320	1659	0% 0% 100% 0%
spectral-norm
Ada 2005 GNAT	18.77	4.73	1,632	1702	99% 99% 100% 99%
C++ GNU g++	10.03	2.52	388	1044	100% 100% 100% 100%
regex-dna
Ada 2005 GNAT	34.64	12.03	152,152	3334	98% 66% 60% 65%
C++ GNU g++	6.00	4.45	174,392	695	33% 2% 100% 1%
k-nucleotide
Ada 2005 GNAT	24.59	12.07	253,480	4865	31% 44% 31% 100%
C++ GNU g++	12.13	3.65	132,052	3415	83% 81% 95% 76%
reverse-complement
Ada 2005 GNAT	4.18	4.19	123,520	885	0% 0% 100% 1%
C++ GNU g++	1.25	0.86	245,456	2275	51% 15% 33% 49%
mandelbrot
Ada 2005 GNAT	48.85	48.87	960	572	0% 0% 100% 0%
C++ GNU g++	23.74	5.97	32,096	1017	99% 99% 99% 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++ Erlang HiPE F# Mono Fortran Intel Go Haskell GHC Java 7 -server Lisp SBCL OCaml Pascal Free Pascal Perl PHP Python 3 Racket Ruby 1.9 Ruby JRuby Scala

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

GNATMAKE 4.6

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

Home Page: The Libre Site

Download: Download GNAT GPL Edition

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