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comparison time.c @ 3:5a977ccbc7a9 default tip

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author darius
date Sat, 06 Dec 1997 05:41:29 +0000
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2:fba0b6e6cdc7 3:5a977ccbc7a9
1 /* $Id: time.c,v 1.1.1.1 1997/12/06 05:41:31 darius Exp $ */
2
3 #ifdef HANDLER_TIMES
4 #include <stdio.h>
5 #include <sys/time.h>
6
7 unsigned long avg[70], count[70];
8 struct timeval pre, post;
9
10 void print_times(void);
11 void log_time(int type, struct timeval *pre, struct timeval *post)
12 {
13 static int init=0;
14 unsigned long usecs;
15 int i;
16
17 if(!init) {
18 for(i=0;i<70;i++)
19 avg[i] = count[i] = 0;
20 init=1;
21 atexit(print_times);
22 }
23
24 usecs = (post->tv_sec * 1000000 + post->tv_usec) -
25 ( pre->tv_sec * 1000000 + pre->tv_usec);
26 avg[type] = ((avg[type]*count[type])+usecs)/(count[type]+1);
27 count[type]++;
28 }
29
30 void print_times()
31 {
32 int i, t_cnt=0, t_avg=0;
33
34 printf("Packet handler average times:\n");
35 printf("Type Count Average time (secs)\n");
36 for(i=0;i<70;i++) {
37 if(count[i]) {
38 printf(" %2d %5d %8.7f\n",i,count[i],(double)((double)avg[i]/1000000.0));
39 t_cnt+=count[i];
40 t_avg+=avg[i];
41 }
42 }
43 t_avg /= t_cnt;
44 printf("Totals:\n");
45 printf(" -- %5d, %8.7f\n", t_cnt, (double)((double)t_avg/1000000.0));
46 }
47
48 start_log()
49 {
50 gettimeofday(&pre, 0);
51 }
52
53 stop_log(int type)
54 {
55 gettimeofday(&post, 0);
56 log_time(type, &pre, &post);
57 }
58 #endif