benchmark-suite/benchmarks/read.bm

   1 ;;; read.bm --- Exercise the reader.               -*- Scheme -*-
   2 ;;;
   3 ;;; Copyright (C) 2008, 2010, 2012 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 read)
  21   :use-module (benchmark-suite lib))
  22
  23 \f
  24 (define %files-to-load
  25   ;; Various large Scheme files.
  26   (map %search-load-path
  27        '("ice-9/boot-9.scm"  "ice-9/common-list.scm"
  28          "ice-9/format.scm"  "ice-9/optargs.scm"
  29          "ice-9/session.scm" "ice-9/getopt-long.scm"
  30          "ice-9/psyntax-pp.scm")))
  31
  32 (define (load-file-with-reader file-name reader buffering)
  33   (with-input-from-file file-name
  34     (lambda ()
  35       (apply setvbuf (current-input-port) buffering)
  36       (let loop ((sexp (reader)))
  37         (if (eof-object? sexp)
  38             #t
  39             (loop (reader)))))))
  40
  41 (define (exercise-read buffering)
  42   (for-each (lambda (file)
  43                       (load-file-with-reader file read buffering))
  44             %files-to-load))
  45
  46 (define small "\"hello, world!\"")
  47 (define large (string-append "\"" (make-string 1234 #\A) "\""))
  48
  49 (fluid-set! %default-port-encoding "UTF-8")       ; for string ports
  50
  51 \f
  52 (with-benchmark-prefix "read"
  53
  54   (benchmark "_IONBF" 5  ;; this one is very slow
  55     (exercise-read (list _IONBF)))
  56
  57   (benchmark "_IOLBF" 10
  58     (exercise-read (list _IOLBF)))
  59
  60   (benchmark "_IOFBF 4096" 10
  61     (exercise-read (list _IOFBF 4096)))
  62
  63   (benchmark "_IOFBF 8192" 10
  64     (exercise-read (list _IOFBF 8192)))
  65
  66   (benchmark "_IOFBF 16384" 10
  67     (exercise-read (list _IOFBF 16384)))
  68
  69   (benchmark "small strings" 100000
  70     (call-with-input-string small read))
  71
  72   (benchmark "large strings" 100000
  73     (call-with-input-string large read)))