Reverse a File

Back to the Win32 Shootout Back to dada's perl lab

The test parameter N is used as a multiple of the input data size. So if N is 2, the test is fed 2 copies of the input data on standard input.

Measurement of CPU as N varies   N Test Source 5 10 15 20 ocaml 0.07 0.14 0.21 0.27 gcc 0.09 0.15 0.22 0.28 vc 0.08 0.16 0.25 0.32 bcc 0.09 0.16 0.25 0.32 mingw32 0.09 0.18 0.28 0.37 lcc 0.10 0.19 0.29 0.38 cygperl 0.20 0.36 0.53 0.70 python 0.37 0.55 0.74 0.90 delphi 0.27 0.51 0.78 1.03 pike 0.45 0.68 0.87 1.06 mercury 0.35 0.67 1.00 1.27 gforth 0.43 0.82 1.22 1.61 lua5 0.44 0.83 1.25 1.62 ocamlb 0.44 0.87 1.29 1.73 vpascal 0.44 0.88 1.31 1.74 se 0.43 0.87 1.29 1.76 awka 0.46 0.90 1.36 1.77 slang 0.48 0.92 1.37 1.80 mawk 0.47 0.91 1.39 1.80 ici 0.64 1.18 1.70 2.23 vc++ 0.58 1.16 1.79 2.30 lua 0.60 1.17 1.90 2.33 icon 0.54 1.07 1.54 2.41 tcl 0.77 1.50 2.23 2.96 csharp 0.78 1.53 2.18 2.99 rexx 0.99 1.97 2.96 3.95 gawk 1.28 2.55 3.82 5.18 guile 1.32 2.53 3.89 5.41 pliant 1.82 3.22 4.49 5.73 ghc 1.54 3.09 4.38 6.22 perl 0.66 2.28 4.44 7.20 java 3.06 5.20 7.54 10.16 vbscript 4.54 9.31 14.39 20.25 ruby 4.30 9.33 14.98 21.07 erlang T T T T smlnj F F F F poplisp F F F F fpascal F F F F php F F F F

Measurement of Memory as N varies   N Test Source 5 10 15 20 ocaml 1148 1656 2160 2676 gcc 1968 2464 2952 3440 vc 1012 1536 2568 2568 bcc 1480 2016 2680 2680 mingw32 1024 1548 2580 2580 lcc 1032 1556 2588 2588 cygperl 5580 8844 12128 15380 python 4768 7192 9024 11268 delphi 1396 1908 2940 2940 pike 5228 6964 7456 7944 mercury 2976 4168 5412 6848 gforth 1956 2452 2940 3424 lua5 2140 3176 5228 5228 ocamlb 380 380 380 380 vpascal 1760 2876 4164 5056 se 3480 6412 9336 12268 awka 7120 12652 18120 23720 slang 2496 2916 3336 3752 mawk 4716 7872 10960 14176 ici 4972 7228 10840 13100 vc++ 3932 7308 10888 14132 lua 6240 11244 19112 21328 icon 2084 2864 3760 5452 tcl 4688 7924 11152 14384 csharp 8156 12668 15892 19288 rexx 2760 4492 6240 7976 gawk 7296 12548 17672 23060 guile 5008 6952 9384 12360 pliant 4340 5732 7648 8496 ghc 10540 19740 19740 38064 perl 6264 11116 16088 20700 java 9492 13220 17188 20992 vbscript 6684 10960 15220 19476 ruby 5480 10484 16916 19584 erlang T T T T smlnj F F F F poplisp F F F F fpascal F F F F php F F F F

The following graph is similar to the graph on the index page, but here, N is much smaller, and startup costs may be more prominent.

[Note: Values have been normalized to fall in the range of 0-10 for aesthetic reasons. Original value ranges are included on the X-axis.

Source Code CPU (sec) Mem (KB) Lines Code Log ocaml 0.07 1148 26 log vc 0.08 1012 41 log gcc 0.09 1968 42 log bcc 0.09 1480 41 log mingw32 0.09 1024 42 log lcc 0.10 1032 41 log cygperl 0.20 5580 2 log delphi 0.27 1396 38 log mercury 0.35 2976 18 log python 0.37 4768 6 log gforth 0.43 1956 36 log se 0.43 3480 25 log lua5 0.44 2140 9 log vpascal 0.44 1760 19 log ocamlb 0.44 380 26 log pike 0.45 5228 1 log awka 0.46 7120 5 log mawk 0.47 4716 5 log slang 0.48 2496 1 log icon 0.54 2084 6 log vc++ 0.58 3932 18 log lua 0.60 6240 11 log ici 0.64 4972 5 log perl 0.66 6264 2 log tcl 0.77 4688 8 log csharp 0.78 8156 17 log rexx 0.99 2760 11 log gawk 1.28 7296 5 log guile 1.32 5008 5 log ghc 1.54 10540 1 log pliant 1.82 4340 9 log java 3.06 9492 21 log ruby 4.30 5480 1 log vbscript 4.54 6684 5 log poplisp F F 26 log erlang T T 19 log smlnj F F 73 log fpascal F F 19 log php F F 7 log