xref: /illumos-gate/usr/src/cmd/refer/tick.c (revision 2a8bcb4efb45d99ac41c94a75c396b362c414f7f)
1 /*
2  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
3  * Use is subject to license terms.
4  */
5 
6 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
7 /*	  All Rights Reserved  	*/
8 
9 /*
10  * Copyright (c) 1980 Regents of the University of California.
11  * All rights reserved. The Berkeley software License Agreement
12  * specifies the terms and conditions for redistribution.
13  */
14 
15 /* time programs */
16 #include <stdio.h>
17 #include <sys/types.h>
18 
19 struct tbuffer {
20 	long	proc_user_time;
21 	long	proc_system_time;
22 	long	child_user_time;
23 	long	child_system_time;
24 };
25 static long start, user, systm;
26 
27 void
tick(void)28 tick(void)
29 {
30 	struct tbuffer tx;
31 	time_t tp;
32 	times(&tx);
33 	time(&tp);
34 	user =  tx.proc_user_time;
35 	systm = tx.proc_system_time;
36 	start = tp;
37 }
38 
39 void
tock(void)40 tock(void)
41 {
42 	struct tbuffer tx;
43 	time_t tp;
44 	float lap, use, sys;
45 	if (start == 0)
46 		return;
47 	times(&tx);
48 	time(&tp);
49 	lap = (tp - start)/60.;
50 	use = (tx.proc_user_time - user)/60.;
51 	sys = (tx.proc_system_time - systm)/60.;
52 	printf("Elapsed %.2f CPU %.2f (user %.2f, sys %.2f)\n",
53 	    lap, use+sys, use, sys);
54 }
55