String Concatenation

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N is the number of times we concatenate a suffix on a string.

Measurement of CPU as N varies   N Test Source 10000 20000 30000 40000 bcc 0.01 0.01 0.02 0.02 lcc 0.01 0.02 0.02 0.02 ocaml 0.01 0.01 0.01 0.02 mingw32 0.01 0.01 0.01 0.02 se 0.01 0.01 0.01 0.02 bigforth 0.01 0.02 0.02 0.02 vc 0.01 0.01 0.02 0.03 delphi 0.01 0.01 0.02 0.03 gcc 0.03 0.03 0.04 0.04 icon 0.03 0.04 0.05 0.07 cygperl 0.05 0.06 0.07 0.08 gforth 0.05 0.06 0.07 0.09 perl 0.05 0.07 0.09 0.10 tcl 0.06 0.07 0.08 0.10 ghc 0.05 0.07 0.09 0.11 csharp 0.10 0.10 0.11 0.11 ocamlb 0.04 0.07 0.09 0.12 php 0.08 0.10 0.13 0.15 smlnj 0.06 0.09 0.15 0.16 pike 0.14 0.15 0.16 0.17 ruby 0.12 0.16 0.20 0.24 python 0.23 0.25 0.28 0.31 oz 0.18 0.21 0.24 0.32 java 0.46 0.47 0.48 0.48 lua 0.13 0.26 0.38 0.52 erlang 0.48 0.50 0.51 0.53 nice 0.54 0.55 0.56 0.57 lua5 0.20 0.38 0.57 0.76 poplisp 0.30 0.53 0.66 1.02 guile 0.55 0.79 1.01 1.23 vc++ 0.33 2.40 6.09 11.23 parrot 2.26 7.54 15.69 25.61 awka 1.18 7.58 19.58 36.86 mawk 0.76 6.79 19.73 38.35 gawk 0.80 6.88 19.99 38.82 fpascal 0.94 7.40 20.37 39.97 slang 0.86 7.99 22.09 41.89 vpascal 2.58 13.10 31.72 57.60 rexx 2.01 14.30 37.91 72.09 jscript 5.26 22.10 51.94 94.07 pliant 5.07 25.52 62.39 113.99 mercury 4.75 22.96 61.00 115.85 vbscript 9.39 45.80 104.83 193.33 ici 11.83 51.43 122.35 222.91 elastic 3.90 T T T gnat F F F F

Measurement of Memory as N varies   N Test Source 10000 20000 30000 40000 bcc 656 716 908 964 lcc 584 632 756 756 ocaml 772 916 1112 1172 mingw32 592 656 784 784 se 752 956 956 1360 bigforth 976 1032 1092 1148 vc 564 632 760 760 delphi 640 700 752 816 gcc 1580 1640 1700 1756 icon 640 700 760 816 cygperl 2436 2492 2552 2612 gforth 1548 1608 1672 1724 perl 1532 1592 1648 1708 tcl 1552 1616 1760 1760 ghc 1476 1508 1532 1560 csharp 3496 3760 4276 4272 ocamlb 380 380 380 380 php 2876 2936 2996 3220 smlnj 936 936 936 936 pike 3608 3672 3804 3804 ruby 1916 1976 2036 2092 python 2472 2516 2640 2640 oz 648 648 648 648 java 4852 5128 5672 5672 lua 836 1060 1304 1432 erlang 5436 5948 6492 6968 nice 5340 5608 6152 6152 lua5 868 1044 1204 1512 poplisp 3524 3660 3716 4380 guile 2828 2948 3128 3188 vc++ 724 992 1200 1268 parrot 2072 2080 2944 2944 awka 2040 2516 2984 3448 mawk 1764 1940 2016 2288 gawk 2216 2400 2504 2680 fpascal 2632 3184 3456 3576 slang 1980 2104 2280 2440 vpascal 704 824 936 1056 rexx 2432 4540 9444 9444 jscript 3460 3996 10124 10124 pliant 3580 3812 4048 4280 mercury 2100 2536 2920 2920 vbscript 4064 5028 17440 17544 ici 1500 1860 2524 3004 elastic 136104 T T T gnat 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 0.01 772 9 log lcc 0.01 584 26 log bcc 0.01 656 26 log mingw32 0.01 592 27 log bigforth 0.01 976 27 log delphi 0.01 640 12 log se 0.01 752 26 log vc 0.01 564 26 log icon 0.03 640 6 log gcc 0.03 1580 27 log ocamlb 0.04 380 9 log cygperl 0.05 2436 6 log perl 0.05 1532 6 log gforth 0.05 1548 27 log ghc 0.05 1476 7 log smlnj 0.06 936 65 log tcl 0.06 1552 8 log php 0.08 2876 9 log csharp 0.10 3496 14 log ruby 0.12 1916 6 log lua 0.13 836 32 log pike 0.14 3608 10 log oz 0.18 648 15 log lua5 0.20 868 31 log python 0.23 2472 8 log poplisp 0.30 3524 25 log vc++ 0.33 724 11 log java 0.46 4852 13 log erlang 0.48 5436 6 log nice 0.54 5340 0 log guile 0.55 2828 28 log mawk 0.76 1764 7 log gawk 0.80 2216 7 log slang 0.86 1980 10 log fpascal 0.94 2632 15 log awka 1.18 2040 7 log rexx 2.01 2432 9 log parrot 2.26 2072 10 log vpascal 2.58 704 14 log elastic 3.90 136104 16 log mercury 4.75 2100 17 log pliant 5.07 3580 10 log jscript 5.26 3460 11 log vbscript 9.39 4064 6 log ici 11.83 1500 5 log gnat F F 0 log