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simplified code: latency test

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git-svn-id: https://zerberus.eonerc.rwth-aachen.de:8443/svn/s2ss/trunk@74 8ec27952-4edc-4aab-86aa-e87bb2611832
This commit is contained in:
Steffen Vogel 2014-06-25 01:53:39 +00:00
parent 58a7aed493
commit 4f064d9d7a
1 changed files with 11 additions and 11 deletions
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22
src/test.c
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@ -64,34 +64,34 @@ int main(int argc, char *argv[])
debug(1, "We sent to %s:%u", inet_ntoa(n.remote.sin_addr), ntohs(n.remote.sin_port));
if (!strcmp(argv[1], "latency")) {
struct msg m2, m1 = {
struct msg m = {
.device = 99,
.sequence = 0
};
struct timespec *ts1 = (struct timespec *) &m1.data;
struct timespec *ts2 = (struct timespec *) &m2.data;
struct timespec *ts3 = malloc(sizeof(struct timespec));
struct timespec *ts1 = (struct timespec *) &m.data;
struct timespec *ts2 = malloc(sizeof(struct timespec));
long long rtt, rtt_max = LLONG_MIN, rtt_min = LLONG_MAX;
long long run = 0, avg = 0;
while (1) {
clock_gettime(CLOCK_REALTIME, ts1);
msg_send(&m1, &n);
msg_recv(&m2, &n);
clock_gettime(CLOCK_REALTIME, ts3);
msg_send(&m, &n);
msg_recv(&m, &n);
clock_gettime(CLOCK_REALTIME, ts2);
rtt = ts2->tv_nsec - ts1->tv_nsec;
rtt = ts3->tv_nsec - ts2->tv_nsec;
if (rtt < 0) continue;
if (rtt > rtt_max) rtt_max = rtt;
if (rtt < rtt_min) rtt_min = rtt;
avg += rtt;
info("rtt %.3f min %.3f max %.3f avg %.3f uS\n", 1e-3 * rtt, 1e-3 * rtt_min, 1e-3 * rtt_max, 1e-3 * avg / ++run);
info("rtt %.3f min %.3f max %.3f avg %.3f uS", 1e-3 * rtt, 1e-3 * rtt_min, 1e-3 * rtt_max, 1e-3 * avg / run);
m1.sequence++;
run++;
m.sequence++;
usleep(1000);
}
}