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÷ Ada 2005 GNAT ATS C GNU gcc C# Mono C++ GNU g++ Clean Erlang HiPE F# Mono Fortran Intel Go 6g 8g Haskell GHC Java 6 -server Java 6 -Xint Java 6 steady state JavaScript TraceMonkey JavaScript V8 Lisp SBCL Lua OCaml Pascal Free Pascal Perl PHP Python CPython Ruby JRuby Ruby MRI Scala Scheme PLT Smalltalk VisualWorks

 1 : Are the Pascal Free Pascal programs faster? At a glance.

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

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

 2 : Are the Pascal Free Pascal programs faster? Approximately.

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

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

Pascal Free Pascal used what fraction? used how many times more?
Benchmark	Time	Memory	Code	Reduced N
pidigits	2×	1/2	±
n-body	2×	1/5	±
reverse-complement	5×	1/2	1/3
fasta	6×	1/4	±
spectral-norm	6×	1/6	1/3
binary-trees	7×	1/3	±
fannkuch	9×	1/25	1/2
mandelbrot	11×	1/515	1/2
k-nucleotide	23×	±	±

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

 3 : Are the Pascal Free Pascal programs faster? Measurements.

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

For each named benchmark, measurements of the fastest Pascal Free Pascal 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
pidigits
Pascal Free Pascal	6.65	6.65	1,108	785	0% 0% 100% 0%
C++ GNU g++	3.79	3.79	1,696	682	0% 100% 0% 0%
n-body
Pascal Free Pascal	36.33	36.34	204	1308	0% 0% 100% 0%
C++ GNU g++	20.57	20.56	932	1428	0% 0% 0% 100%
reverse-complement
Pascal Free Pascal	4.02	4.03	122,892	751	0% 0% 100% 0%
C++ GNU g++	1.21	0.85	245,644	2275	37% 13% 80% 14%
fasta
Pascal Free Pascal	13.08	13.08	220	1112	0% 0% 99% 0%
C++ GNU g++	2.26	2.26	964	1470	100% 0% 1% 0%
spectral-norm
Pascal Free Pascal	18.79	18.79	192	423	0% 0% 0% 100%
C++ GNU g++	11.89	2.99	1,196	1114	100% 99% 99% 99%
binary-trees
Pascal Free Pascal	62.77	62.77	131,292	769	0% 0% 100% 0%
C++ GNU g++	28.55	9.01	357,820	892	71% 62% 95% 82%
fannkuch
Pascal Free Pascal	130.04	130.03	52	712	0% 0% 0% 100%
C++ GNU g++	49.75	13.74	1,300	1186	80% 76% 100% 100%
mandelbrot
Pascal Free Pascal	71.02	71.02	56	530	0% 0% 0% 100%
C++ GNU g++	25.04	6.29	28,824	858	99% 99% 100% 100%
k-nucleotide
Pascal Free Pascal	126.78	126.79	129,848	2380	0% 0% 0% 100%
C++ GNU g++	20.27	5.54	177,148	2673	99% 88% 90% 93%
chameneos-redux
	No program
regex-dna
	No program

 Pascal Free Pascal : imperative programming plus objects 

Pascal and its Successors - Niklaus Wirth

Free Pascal Compiler version 2.2.2 [2008/07/29] for x86_64

Home Page: http://www.freepascal.org

Download: http://www.freepascal.org/download.html