benchmark-suite/benchmarks/write.bm

   1 ;;; write.bm --- Exercise the printer.               -*- Scheme -*-
   2 ;;;
   3 ;;; Copyright (C) 2010 Free Software Foundation, Inc.
   4 ;;;
   5 ;;; This program is free software; you can redistribute it and/or
   6 ;;; modify it under the terms of the GNU Lesser General Public License
   7 ;;; as published by the Free Software Foundation; either version 3, or
   8 ;;; (at your option) any later version.
   9 ;;;
  10 ;;; This program is distributed in the hope that it will be useful,
  11 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 ;;; GNU Lesser General Public License for more details.
  14 ;;;
  15 ;;; You should have received a copy of the GNU Lesser General Public
  16 ;;; License along with this software; see the file COPYING.LESSER.  If
  17 ;;; not, write to the Free Software Foundation, Inc., 51 Franklin
  18 ;;; Street, Fifth Floor, Boston, MA 02110-1301 USA
  19
  20 (define-module (benchmarks write)
  21   #:use-module (benchmark-suite lib))
  22
  23 (define %len 50000)
  24
  25 (define %string-with-escapes
  26   (list->string (map integer->char (iota %len))))
  27
  28 (define %string-without-escapes
  29   (make-string %len #\a))
  30
  31 ;; Use Unicode-capable ports.
  32 (fluid-set! %default-port-encoding "UTF-8")
  33
  34 (define %null
  35   (%make-void-port OPEN_WRITE))
  36
  37 \f
  38 (with-benchmark-prefix "write"
  39
  40   (benchmark "string with escapes" 50
  41     (write %string-with-escapes %null))
  42
  43   (benchmark "string without escapes" 50
  44     (write %string-without-escapes %null)))
  45
  46 (with-benchmark-prefix "display"
  47
  48   (benchmark "string with escapes" 1000
  49     (display %string-with-escapes %null))
  50
  51   (benchmark "string without escapes" 1000
  52     (display %string-without-escapes %null)))