From 5e38caf19696cb23b6b7054811d7d4e896c9f5ff Mon Sep 17 00:00:00 2001
From: Keisuke Nishida <kxn30@po.cwru.edu>
Date: Sat, 17 Mar 2001 10:01:01 +0000
Subject: [PATCH] 	* time.scm: New file.

---
 ice-9/ChangeLog |  4 ++++
 ice-9/time.scm  | 40 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 44 insertions(+)
 create mode 100644 ice-9/time.scm

diff --git a/ice-9/ChangeLog b/ice-9/ChangeLog
index 769429847..4b63a538d 100644
--- a/ice-9/ChangeLog
+++ b/ice-9/ChangeLog
@@ -1,3 +1,7 @@
+2001-03-17  Keisuke Nishida  <kxn30@po.cwru.edu>
+
+	* time.scm: New file.
+
 2001-03-17  Dirk Herrmann  <D.Herrmann@tu-bs.de>
 
 	* oldprint.scm:  Removed.
diff --git a/ice-9/time.scm b/ice-9/time.scm
new file mode 100644
index 000000000..0be666cd5
--- /dev/null
+++ b/ice-9/time.scm
@@ -0,0 +1,40 @@
+;;;; 	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
+;;;; 
+
+
+(define-module (ice-9 time)
+  :use-module (ice-9 format)
+  :export (time))
+
+(define-macro (time form)
+  (let* ((gc-start (gc-run-time))
+	 (tms-start (times))
+	 (result (eval form (interaction-environment)))
+	 (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 id gc-start gc-end))
+    result))