}
}
-static inline void get_next_timeout(struct timespec *timeout)
+static inline void get_next_timeout(struct timespec *timeout, bool advance)
{
struct timespec now;
static struct timespec last = {-1, 0 };
clock_gettime(CLOCK_MONOTONIC, &now);
- if (last.tv_sec == -1)
+ if (last.tv_sec == -1) {
last = now;
+ last.tv_nsec = last.tv_nsec/1000000*1000000;
+ }
if (opt.period_us != 0) {
- last.tv_sec += opt.period_us/1000000;
- last.tv_nsec += (opt.period_us%1000000)*1000;
- while (last.tv_nsec >= 1000000000) {
- last.tv_nsec -= 1000000000;
- last.tv_sec++;
+ if (advance) {
+ last.tv_sec += opt.period_us/1000000;
+ last.tv_nsec += (opt.period_us%1000000)*1000;
+ while (last.tv_nsec >= 1000000000) {
+ last.tv_nsec -= 1000000000;
+ last.tv_sec++;
+ }
}
if (timespec_subtract(timeout, &last, &now) /* is negative */) {
stats.overrun++;
memset(timeout, 0, sizeof(*timeout));
}
+/* printf("next %ld.%06ld now %ld.%06ld --> timeout %ld.%06ld\n", */
+/* last.tv_sec, last.tv_nsec/1000, */
+/* now.tv_sec, now.tv_nsec/1000, */
+/* timeout->tv_sec, timeout->tv_nsec/1000); */
} else if (opt.timeout_ms != 0) {
timeout->tv_sec = opt.timeout_ms/1000;
timeout->tv_nsec = (opt.timeout_ms%1000)*1000000;
SEND();
get_tstamp(&stats.tic);
-
+ ret = 0;
while (!finish_flag &&
(opt.count == 0 || count < opt.count || msg_in_progress != 0)) {
- get_next_timeout(&timeout);
+ get_next_timeout(&timeout, ret == 0);
+ //printf("timeout %ld.%06ld\n", timeout.tv_sec, timeout.tv_nsec/1000);
//printf("ppoll"); fflush(stdout);
ret = ppoll(pfd, num_interfaces, &timeout, NULL);
//printf("=%d\n", ret);
fclose(opt.f_msgs);
if (opt.f_stat) {
+ struct histogram_stats hs;
fprintf(opt.f_stat, "cmdline='");
for (i=0; i<argc; i++)
fprintf(opt.f_stat, "%s%s", argv[i], i < argc-1 ? " " : "");
timespec_subtract(&diff, &stats.tac, &stats.tic);
fprintf(opt.f_stat, "duration=%s # seconds\n", tstamp_str(NULL, &diff));
-
+
fprintf(opt.f_stat, "sent=%d\n", count);
fprintf(opt.f_stat, "overrun=%d\n", stats.overrun);
if (stats.overrun && !opt.quiet)
if (stats.timeouts && !opt.quiet)
printf("invalid_frame=%d\n", stats.timeouts);
+ histogram_stats(&histogram_gw, &hs);
+ double avg = hs.count ? (double)hs.sum/hs.count : 0;
+ fprintf(opt.f_stat, "avg=%g\n", avg);
+ for (i = 0; i <= 20; i++)
+ fprintf(opt.f_stat, "percentile%d=%d\n", i*5, hs.percentile[i*5]);
+
fclose(opt.f_stat);
}