benchmarks/strings/chain_concat.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # This file is free software, which comes along with NIT.  This software is
   4 # distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
   5 # without  even  the implied warranty of  MERCHANTABILITY or  FITNESS FOR A
   6 # PARTICULAR PURPOSE.  You can modify it is you want,  provided this header
   7 # is kept unaltered, and a notification of the changes is added.
   8 # You  are  allowed  to  redistribute it and sell it, alone or is a part of
   9 # another product.
  10
  11 # Benches measuring the performance of several concatenations on Text variants
  12 module chain_concat
  13
  14 import bench_base
  15 import opts
  16
  17 private fun bench_string(str_size: Int, nb_ccts: Int, loops: Int)
  18 do
  19         var lft = prepare_string(str_size)
  20         for i in [0 .. loops[ do
  21                 var str = ""
  22                 for j in [0 .. nb_ccts[ do
  23                         str += lft
  24                 end
  25         end
  26 end
  27
  28 private fun bench_buffer(str_size: Int, nb_ccts: Int, loops: Int)
  29 do
  30         var lft = prepare_string(str_size)
  31         for i in [0 .. loops[ do
  32                 var buf = new Buffer
  33                 for j in [0 .. nb_ccts[ do
  34                         buf.append(lft)
  35                 end
  36         end
  37 end
  38
  39 var opts = new OptionContext
  40 var mode = new OptionEnum(["string", "buffer"], "Mode", -1, "-m")
  41 var nb_ccts = new OptionInt("Number of concatenations per loop", -1, "--ccts")
  42 var loops = new OptionInt("Number of loops to be done", -1, "--loops")
  43 var strlen = new OptionInt("Length of the base string", -1, "--strlen")
  44 opts.add_option(mode, nb_ccts, loops, strlen)
  45
  46 opts.parse(args)
  47
  48 if nb_ccts.value == -1 or loops.value == -1 or strlen.value == -1 then
  49         opts.usage
  50         exit -1
  51 end
  52
  53 var modval = mode.value
  54
  55 if modval == 0 then
  56         bench_string(strlen.value, nb_ccts.value, loops.value)
  57 else if modval == 1 then
  58         bench_buffer(strlen.value, nb_ccts.value, loops.value)
  59 else
  60         opts.usage
  61         exit -1
  62 end