benchmarks/strings/iteration_bench.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 for iteration on variants of Text
  12 module iteration_bench
  13
  14 import opts
  15
  16 fun bench_flatstr_iter(nb_cct: Int, loops: Int, strlen: Int)
  17 do
  18         var a = "a" * strlen
  19         var x = a
  20         for i in [0 .. nb_cct] do x += a
  21         var cnt = 0
  22         var c: Char
  23         while cnt != loops do
  24                 for i in x do
  25                         c = i
  26                 end
  27                 cnt += 1
  28         end
  29 end
  30
  31 fun bench_flatstr_index(nb_cct: Int, loops: Int, strlen: Int)
  32 do
  33         var a = "a" * strlen
  34         var x = a
  35         for i in [0 .. nb_cct] do x += a
  36         var cnt = 0
  37         var c: Char
  38         var pos = 0
  39         while cnt != loops do
  40                 pos = 0
  41                 while pos < x.length do
  42                         c = x[pos]
  43                         pos += 1
  44                 end
  45                 cnt += 1
  46         end
  47 end
  48
  49 fun bench_flatbuf_iter(nb_cct: Int, loops: Int, strlen: Int)
  50 do
  51         var a = "a" * strlen
  52         var x = new FlatBuffer.from(a)
  53         for i in [0 .. nb_cct] do x.append a
  54         var cnt = 0
  55         var c: Char
  56         while cnt != loops do
  57                 for i in x do
  58                         c = i
  59                 end
  60                 cnt += 1
  61         end
  62 end
  63
  64 fun bench_flatbuf_index(nb_cct: Int, loops: Int, strlen: Int)
  65 do
  66         var a = "a" * strlen
  67         var x = new FlatBuffer.from(a)
  68         for i in [0 .. nb_cct] do x.append a
  69         var cnt = 0
  70         var c: Char
  71         var pos = 0
  72         while cnt != loops do
  73                 pos = 0
  74                 while pos < x.length do
  75                         c = x[pos]
  76                         pos += 1
  77                 end
  78                 cnt += 1
  79         end
  80 end
  81
  82 var opts = new OptionContext
  83 var mode = new OptionEnum(["flatstr", "flatbuf"], "Mode", -1, "-m")
  84 var access_mode = new OptionEnum(["iterator", "index"], "Iteration mode", -1, "--iter-mode")
  85 var nb_ccts = new OptionInt("Number of concatenations done to the string (in the case of the rope, this will increase its depth)", -1, "--ccts")
  86 var loops = new OptionInt("Number of loops to be done", -1, "--loops")
  87 var strlen = new OptionInt("Length of the base string", -1, "--strlen")
  88 opts.add_option(mode, nb_ccts, loops, strlen, access_mode)
  89
  90 opts.parse(args)
  91
  92 if nb_ccts.value == -1 or loops.value == -1 or strlen.value == -1 then
  93         opts.usage
  94         exit(-1)
  95 end
  96
  97 var modval = mode.value
  98 var iterval = access_mode.value
  99
 100 if modval == 0 then
 101         if iterval == 0 then
 102                 bench_flatstr_iter(nb_ccts.value, loops.value, strlen.value)
 103         else if iterval == 1 then
 104                 bench_flatstr_index(nb_ccts.value, loops.value, strlen.value)
 105         else
 106                 opts.usage
 107                 exit(-1)
 108         end
 109 else if modval == 1 then
 110         if iterval == 0 then
 111                 bench_flatbuf_iter(nb_ccts.value, loops.value, strlen.value)
 112         else if iterval == 1 then
 113                 bench_flatbuf_index(nb_ccts.value, loops.value, strlen.value)
 114         else
 115                 opts.usage
 116                 exit(-1)
 117         end
 118 else
 119         opts.usage
 120         exit(-1)
 121 end