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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 OCaml 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 OCaml program used compared to the fastest C++ GNU g++ program.

 2 : Are the OCaml 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 OCaml program used compared to the fastest C++ GNU g++ program.

OCaml used what fraction? used how many times more?
Benchmark	Time	Memory	Code	Reduced N
n-body	2×	±	±
pidigits	2×	2×	±
spectral-norm	2×	3×	±
regex-dna	2×	4×	±
mandelbrot	3×	2×	±
binary-trees	3×	1/2	±
reverse-complement	3×	2×	1/4
fannkuch	3×	5×	±
fasta	6×	±	±
k-nucleotide	7×	3×	1/2
chameneos-redux	67×	2×	±

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

 3 : Are the OCaml 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 OCaml 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
n-body
OCaml	32.69	32.70	816	1239	100% 0% 0% 0%
C++ GNU g++	20.57	20.56	932	1428	0% 0% 0% 100%
pidigits
OCaml	6.70	6.70	4,056	560	0% 100% 0% 0%
C++ GNU g++	3.79	3.79	1,696	682	0% 100% 0% 0%
spectral-norm
OCaml	20.02	6.21	3,304	907	79% 79% 81% 81%
C++ GNU g++	11.89	2.99	1,196	1114	100% 99% 99% 99%
regex-dna
OCaml	19.83	11.29	389,532	1261	25% 86% 25% 40%
C++ GNU g++	18.37	5.04	97,464	1588	87% 96% 90% 91%
mandelbrot
OCaml	65.87	16.69	63,788	929	99% 98% 99% 98%
C++ GNU g++	25.04	6.29	28,824	858	99% 99% 100% 100%
binary-trees
OCaml	89.57	25.32	157,664	784	82% 85% 95% 90%
C++ GNU g++	28.55	9.01	357,820	892	71% 62% 95% 82%
reverse-complement
OCaml	2.55	2.56	388,264	582	100% 0% 0% 0%
C++ GNU g++	1.21	0.85	245,644	2275	37% 13% 80% 14%
fannkuch
OCaml	181.64	46.67	6,288	975	99% 96% 99% 97%
C++ GNU g++	49.75	13.74	1,300	1186	80% 76% 100% 100%
fasta
OCaml	13.82	13.82	1,000	1042	0% 0% 100% 0%
C++ GNU g++	2.26	2.26	964	1470	100% 0% 1% 0%
k-nucleotide
OCaml	88.25	37.80	574,588	1205	41% 25% 81% 85%
C++ GNU g++	20.27	5.54	177,148	2673	99% 88% 90% 93%
chameneos-redux
OCaml	364.49	239.77	2,412	1286	37% 33% 37% 33%
C++ GNU g++	13.05	3.57	1,328	1800	82% 77% 100% 100%

 OCaml : modular type-safe strict functional programming plus objects 

The Objective Caml native-code compiler, version 3.11.0

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

Download: http://caml.inria.fr/download.en.html