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- ;;;; Copyright (C) 2001 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., 59 Temple Place, Suite 330,
- ;;;; Boston, MA 02111-1307 USA
- ;;;;
- ;;;; As a special exception, the Free Software Foundation gives permission
- ;;;; for additional uses of the text contained in its release of GUILE.
- ;;;;
- ;;;; The exception is that, if you link the GUILE library with other files
- ;;;; to produce an executable, this does not by itself cause the
- ;;;; resulting executable to be covered by the GNU General Public License.
- ;;;; Your use of that executable is in no way restricted on account of
- ;;;; linking the GUILE library code into it.
- ;;;;
- ;;;; This exception does not however invalidate any other reasons why
- ;;;; the executable file might be covered by the GNU General Public License.
- ;;;;
- ;;;; This exception applies only to the code released by the
- ;;;; Free Software Foundation under the name GUILE. If you copy
- ;;;; code from other Free Software Foundation releases into a copy of
- ;;;; GUILE, as the General Public License permits, the exception does
- ;;;; not apply to the code that you add in this way. To avoid misleading
- ;;;; anyone as to the status of such modified files, you must delete
- ;;;; this exception notice from them.
- ;;;;
- ;;;; If you write modifications of your own for GUILE, it is your choice
- ;;;; whether to permit this exception to apply to your modifications.
- ;;;; If you do not wish that, delete this exception notice.
- ;;;;
-
- ;;; Commentary:
-
- ;; This module exports a single macro: `time'.
- ;; Usage: (time exp)
- ;;
- ;; Example:
- ;; guile> (time (sleep 3))
- ;; clock utime stime cutime cstime gctime
- ;; 3.01 0.00 0.00 0.00 0.00 0.00
- ;; 0
-
- ;;; Code:
-
- (define-module (ice-9 time)
- :use-module (ice-9 format)
- :export (time))
-
- (define (time-proc proc)
- (let* ((gc-start (gc-run-time))
- (tms-start (times))
- (result (proc))
- (tms-end (times))
- (gc-end (gc-run-time)))
- (define (get proc start end)
- (/ (- (proc end) (proc start)) internal-time-units-per-second))
- (display "clock utime stime cutime cstime gctime\n")
- (format #t "~5,2F ~5,2F ~5,2F ~6,2F ~6,2F ~6,2F\n"
- (get tms:clock tms-start tms-end)
- (get tms:utime tms-start tms-end)
- (get tms:stime tms-start tms-end)
- (get tms:cutime tms-start tms-end)
- (get tms:cstime tms-start tms-end)
- (get identity gc-start gc-end))
- result))
-
- (define-macro (time exp)
- `(,time-proc (lambda () ,exp)))
-
- ;;; time.scm ends here
-