speed and size Pascal Free Pascal ÷ C++ GNU g++ | Computer Language Benchmarks Game

Step 1 : Are the Pascal Free Pascal 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 Pascal Free Pascal program used compared to the fastest C++ GNU g++ program.

Step 2 : Are the Pascal Free Pascal 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 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
regex-dna	¹/₅	2×	2×
fannkuch	±	¹/₉	±
pidigits	±	¹/₂	±
nsieve-bits	±	¹/₂	±
partial-sums	±	¹/₁₁	±
n-body	±	¹/₃	±
spectral-norm	±	¹/₃	±
k-nucleotide	±	±	2×
reverse-complement	±	±	±
fasta	±	¹/₂	±
nsieve	2×	3×	±
recursive	2×	¹/₆	±
mandelbrot	2×	¹/₉	¹/₂
binary-trees	15×	2×	±

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

Step 3 : Are the Pascal Free Pascal 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 Pascal Free Pascal program are shown for comparison against measurements of the fastest C++ GNU g++ program.

Program Source Code	CPU secs	Memory KB	Code B
regex-dna
Pascal Free Pascal	1.10	19,604	2932
C++ GNU g++	5.58	12,704	1588
fannkuch
Pascal Free Pascal	0.06	92	712
C++ GNU g++	0.06	844	554
pidigits
Pascal Free Pascal	0.07	520	785
C++ GNU g++	0.07	948	652
nsieve-bits
Pascal Free Pascal	0.68	932	476
C++ GNU g++	0.62	1,440	494
partial-sums
Pascal Free Pascal	3.58	88	625
C++ GNU g++	3.21	952	709
n-body
Pascal Free Pascal	16.91	272	1308
C++ GNU g++	14.62	932	1705
spectral-norm
Pascal Free Pascal	29.13	260	423
C++ GNU g++	23.84	900	442
k-nucleotide
Pascal Free Pascal	9.61	10,424	2380
C++ GNU g++	7.46	9,304	1380
reverse-complement
Pascal Free Pascal	0.73	13,004	751
C++ GNU g++	0.54	13,288	810
fasta
Pascal Free Pascal	25.45	372	1189
C++ GNU g++	18.72	788	1248
nsieve
Pascal Free Pascal	2.08	5,092	301
C++ GNU g++	1.29	1,468	379
recursive
Pascal Free Pascal	0.27	160	462
C++ GNU g++	0.16	884	566
mandelbrot
Pascal Free Pascal	0.24	100	530
C++ GNU g++	0.14	896	1097
binary-trees
Pascal Free Pascal	3.92	4,224	769
C++ GNU g++	0.26	2,192	814
chameneos-redux
	No program
C++ GNU g++	0.21	936	1729

Step 4 : Are there other Pascal Free Pascal programs for these benchmarks?

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

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

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

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

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

Pascal Free Pascal : imperative programming plus objects

Pascal and its Successors - Niklaus Wirth

Free Pascal Compiler version 2.2.0 [2007/09/14] for i386

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

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