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+;;; read.bm --- Exercise the reader. -*- Scheme -*-
+;;;
+;;; Copyright (C) 2008 Free Software Foundation, Inc.
+;;;
+;;; This program is free software; you can redistribute it and/or modify
+;;; it under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 2, or (at your option)
+;;; any later version.
+;;;
+;;; This program is distributed in the hope that it will be useful,
+;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with this software; see the file COPYING. If not, write to
+;;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;;; Boston, MA 02110-1301 USA
+
+(define-module (benchmarks read)
+ :use-module (benchmark-suite lib))
+
+
+(define %files-to-load
+ ;; Various large Scheme files.
+ (map %search-load-path
+ '("ice-9/boot-9.scm" "ice-9/common-list.scm"
+ "ice-9/format.scm" "ice-9/optargs.scm"
+ "ice-9/session.scm" "ice-9/getopt-long.scm"
+ "ice-9/psyntax.pp")))
+
+(define (load-file-with-reader file-name reader buffering)
+ (with-input-from-file file-name
+ (lambda ()
+ (apply setvbuf (current-input-port) buffering)
+ (let loop ((sexp (reader)))
+ (if (eof-object? sexp)
+ #t
+ (loop (reader)))))))
+
+(define (exercise-read buffering)
+ (for-each (lambda (file)
+ (load-file-with-reader file read buffering))
+ %files-to-load))
+
+
+(with-benchmark-prefix "read"
+
+ (benchmark "_IONBF" 5 ;; this one is very slow
+ (exercise-read (list _IONBF)))
+
+ (benchmark "_IOLBF" 100
+ (exercise-read (list _IOLBF)))
+
+ (benchmark "_IOFBF 4096" 100
+ (exercise-read (list _IOFBF 4096)))
+
+ (benchmark "_IOFBF 8192" 100
+ (exercise-read (list _IOFBF 8192)))
+
+ (benchmark "_IOFBF 16384" 100
+ (exercise-read (list _IOFBF 16384))))