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 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 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