Array Access

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N is the number of array elements we access.

Measurement of CPU as N varies   N Test Source 1000 3000 5000 7000 mingw32 0.01 0.02 0.04 0.05 vc++ 0.01 0.03 0.04 0.06 vc 0.01 0.02 0.04 0.06 lcc 0.01 0.03 0.04 0.06 gnat 0.02 0.03 0.05 0.06 modula2 0.01 0.04 0.05 0.07 bcc 0.01 0.03 0.05 0.07 ocaml 0.01 0.03 0.05 0.07 gcc 0.03 0.05 0.06 0.07 mercury 0.04 0.05 0.07 0.09 se 0.03 0.08 0.13 0.17 csharp 0.12 0.14 0.17 0.21 bigforth 0.04 0.12 0.19 0.26 smlnj 0.09 0.18 0.27 0.37 java 0.47 0.52 0.57 0.62 nice 0.54 0.59 0.65 0.69 pliant 0.19 0.38 0.56 0.75 vpascal 0.11 0.34 0.56 0.78 gforth 0.32 0.89 1.45 2.03 ocamlb 0.78 2.32 3.86 5.38 pike 0.86 2.45 4.04 5.65 oz 1.04 2.82 4.62 6.38 slang 1.09 3.17 5.28 7.47 parrot 0.69 3.47 6.79 9.70 python 1.57 4.40 7.90 11.17 lua 1.20 5.10 8.47 11.85 erlang 1.44 4.36 7.94 12.00 poplisp 1.94 5.81 9.71 13.68 icon 2.24 6.71 11.19 15.78 awka 1.45 6.76 13.91 16.64 perl 2.09 7.22 12.53 17.83 cygperl 2.03 7.25 12.57 18.07 guile 3.41 10.10 16.94 23.83 ici 2.50 10.00 17.85 24.79 php 4.72 14.34 23.95 33.39 mawk 2.03 21.57 31.63 34.91 ruby 5.96 17.76 29.51 41.34 tcl 6.75 22.01 35.44 49.72 gawk 8.17 26.71 42.61 60.62 vbscript 9.67 28.87 48.53 67.95 jscript 8.45 31.30 48.25 68.91 rexx 6.00 30.61 73.79 135.92 ghc F F F F fpascal F F F F lua5 F F F F

Measurement of Memory as N varies   N Test Source 1000 3000 5000 7000 mingw32 512 528 544 560 vc++ 524 540 560 572 vc 472 488 508 520 lcc 512 528 544 560 gnat 740 756 772 788 modula2 644 660 676 696 bcc 572 584 600 616 ocaml 656 672 688 704 gcc 1516 1532 1544 1560 mercury 1740 1756 1772 1788 se 564 576 596 612 csharp 3288 3300 3316 3336 bigforth 920 936 952 968 smlnj 940 940 940 940 java 4584 4600 4616 4632 nice 4924 4940 4952 4968 pliant 3220 3248 3344 3376 vpascal 592 608 624 640 gforth 1492 1508 1524 1536 ocamlb 380 380 380 380 pike 3420 3432 3488 3516 oz 648 648 648 648 slang 1828 1860 1892 1924 parrot 1148 1444 1772 2352 python 2404 2468 2532 2596 lua 716 988 1392 1392 erlang 5188 5292 5444 5572 poplisp 4472 4476 4492 4504 icon 608 640 672 704 awka 1740 2056 2372 2700 perl 1496 1632 1772 1908 cygperl 2364 2528 2692 2836 guile 2476 2492 2508 2524 ici 1240 1748 1764 2448 php 3036 3464 3908 4312 mawk 1664 1824 1984 2156 ruby 1872 1888 1904 1920 tcl 1684 2092 2528 2936 gawk 2208 2528 2896 3212 vbscript 2324 2384 2456 2520 jscript 2412 2784 3252 3604 rexx 1192 1600 2012 2440 ghc F F F F fpascal F F F F lua5 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 lcc 0.01 512 21 log modula2 0.01 644 0 log mingw32 0.01 512 21 log vc 0.01 472 21 log bcc 0.01 572 21 log vc++ 0.01 524 18 log ocaml 0.01 656 16 log gnat 0.02 740 0 log gcc 0.03 1516 21 log se 0.03 564 49 log bigforth 0.04 920 21 log mercury 0.04 1740 38 log smlnj 0.09 940 36 log vpascal 0.11 592 29 log csharp 0.12 3288 19 log pliant 0.19 3220 20 log gforth 0.32 1492 21 log java 0.47 4584 15 log nice 0.54 4924 0 log parrot 0.69 1148 35 log ocamlb 0.78 380 16 log pike 0.86 3420 16 log oz 1.04 648 25 log slang 1.09 1828 18 log lua 1.20 716 13 log erlang 1.44 5188 26 log awka 1.45 1740 10 log python 1.57 2404 12 log poplisp 1.94 4472 15 log cygperl 2.03 2364 13 log mawk 2.03 1664 10 log perl 2.09 1496 13 log icon 2.24 608 14 log ici 2.50 1240 11 log guile 3.41 2476 15 log php 4.72 3036 13 log ruby 5.96 1872 15 log rexx 6.00 1192 16 log tcl 6.75 1684 16 log gawk 8.17 2208 10 log jscript 8.45 2412 20 log vbscript 9.67 2324 13 log ghc F F 20 log lua5 F F 12 log fpascal F F 29 log