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81 lines
3.1 KiB
Scheme
81 lines
3.1 KiB
Scheme
;;;; Copyright (C) 2001 Free Software Foundation, Inc.
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;;;;
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;;;; This program is free software; you can redistribute it and/or modify
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;;;; it under the terms of the GNU General Public License as published by
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;;;; the Free Software Foundation; either version 2, or (at your option)
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;;;; any later version.
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;;;;
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;;;; This program is distributed in the hope that it will be useful,
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;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;;; GNU General Public License for more details.
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;;;;
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;;;; You should have received a copy of the GNU General Public License
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;;;; along with this software; see the file COPYING. If not, write to
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;;;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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;;;; Boston, MA 02110-1301 USA
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;;;;
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;;;; As a special exception, the Free Software Foundation gives permission
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;;;; for additional uses of the text contained in its release of GUILE.
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;;;;
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;;;; The exception is that, if you link the GUILE library with other files
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;;;; to produce an executable, this does not by itself cause the
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;;;; resulting executable to be covered by the GNU General Public License.
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;;;; Your use of that executable is in no way restricted on account of
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;;;; linking the GUILE library code into it.
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;;;;
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;;;; This exception does not however invalidate any other reasons why
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;;;; the executable file might be covered by the GNU General Public License.
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;;;;
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;;;; This exception applies only to the code released by the
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;;;; Free Software Foundation under the name GUILE. If you copy
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;;;; code from other Free Software Foundation releases into a copy of
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;;;; GUILE, as the General Public License permits, the exception does
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;;;; not apply to the code that you add in this way. To avoid misleading
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;;;; anyone as to the status of such modified files, you must delete
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;;;; this exception notice from them.
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;;;;
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;;;; If you write modifications of your own for GUILE, it is your choice
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;;;; whether to permit this exception to apply to your modifications.
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;;;; If you do not wish that, delete this exception notice.
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;;;;
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;;; Commentary:
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;; This module exports a single macro: `time'.
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;; Usage: (time exp)
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;;
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;; Example:
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;; guile> (time (sleep 3))
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;; clock utime stime cutime cstime gctime
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;; 3.01 0.00 0.00 0.00 0.00 0.00
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;; 0
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;;; Code:
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(define-module (ice-9 time)
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:use-module (ice-9 format)
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:export (time))
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(define (time-proc proc)
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(let* ((gc-start (gc-run-time))
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(tms-start (times))
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(result (proc))
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(tms-end (times))
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(gc-end (gc-run-time)))
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(define (get proc start end)
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(/ (- (proc end) (proc start)) internal-time-units-per-second))
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(display "clock utime stime cutime cstime gctime\n")
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(format #t "~5,2F ~5,2F ~5,2F ~6,2F ~6,2F ~6,2F\n"
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(get tms:clock tms-start tms-end)
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(get tms:utime tms-start tms-end)
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(get tms:stime tms-start tms-end)
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(get tms:cutime tms-start tms-end)
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(get tms:cstime tms-start tms-end)
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(get identity gc-start gc-end))
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result))
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(define-macro (time exp)
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`(,time-proc (lambda () ,exp)))
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;;; time.scm ends here
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