31 static void tv_sub(struct timeval *tv2, struct timeval *tv1) {  in tv_sub()  argument
32         tv2->tv_sec -= tv1->tv_sec;  in tv_sub()
33         tv2->tv_usec -= tv1->tv_usec;  in tv_sub()
34         while (tv2->tv_usec < 0) {  in tv_sub()
35             tv2->tv_usec += 1000000;  in tv_sub()
36             tv2->tv_sec -= 1;  in tv_sub()
42     struct timeval tv2;  in do_sleep()  local
48         gettimeofday(&tv2, NULL);  in do_sleep()
50         tv_sub(&tv2, &tv1);  in do_sleep()
52         printf("sleep(%d) took %ld.%06ld seconds\n", delay, tv2.tv_sec, tv2.tv_usec);  in do_sleep()
62     struct timeval tv2;  in do_cpu()  local
68         gettimeofday(&tv2, NULL);  in do_cpu()
70         tv_sub(&tv2, &tv1);  in do_cpu()
72         printf("cpu took %ld.%06ld seconds\n", tv2.tv_sec, tv2.tv_usec);  in do_cpu()
84     struct timeval tv2;  in do_memset()  local
96         gettimeofday(&tv2, NULL);  in do_memset()
98         tv_sub(&tv2, &tv1);  in do_memset()
101                 c, sz, tv2.tv_sec, tv2.tv_usec, mb_sec(c*sz, &tv2));  in do_memset()
108     struct timeval tv2;  in do_memcpy()  local
122         gettimeofday(&tv2, NULL);  in do_memcpy()
124         tv_sub(&tv2, &tv1);  in do_memcpy()
127                 c, sz, tv2.tv_sec, tv2.tv_usec, mb_sec(c*sz, &tv2));  in do_memcpy()
136     struct timeval tv2;  in do_memread()  local
149         gettimeofday(&tv2, NULL);  in do_memread()
151         tv_sub(&tv2, &tv1);  in do_memread()
154                 c, sz, tv2.tv_sec, tv2.tv_usec, mb_sec(c*sz, &tv2));  in do_memread()