3 void *checks_main(void *ptr) {
4 struct netdata_static_thread *static_thread = (struct netdata_static_thread *)ptr;
6 info("CHECKS thread created with task id %d", gettid());
8 if(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) != 0)
9 error("Cannot set pthread cancel type to DEFERRED.");
11 if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0)
12 error("Cannot set pthread cancel state to ENABLE.");
14 usec_t usec = 0, susec = localhost->rrd_update_every * USEC_PER_SEC, loop_usec = 0, total_susec = 0;
15 struct timeval now, last, loop;
17 RRDSET *check1, *check2, *check3, *apps_cpu = NULL;
19 check1 = rrdset_create_localhost("netdata", "check1", NULL, "netdata", NULL, "Caller gives microseconds"
20 , "a million !", 99999, localhost->rrd_update_every, RRDSET_TYPE_LINE);
21 rrddim_add(check1, "absolute", NULL, -1, 1, RRD_ALGORITHM_ABSOLUTE);
22 rrddim_add(check1, "incremental", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
24 check2 = rrdset_create_localhost("netdata", "check2", NULL, "netdata", NULL, "Netdata calcs microseconds"
25 , "a million !", 99999, localhost->rrd_update_every, RRDSET_TYPE_LINE);
26 rrddim_add(check2, "absolute", NULL, -1, 1, RRD_ALGORITHM_ABSOLUTE);
27 rrddim_add(check2, "incremental", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
29 check3 = rrdset_create_localhost("netdata", "checkdt", NULL, "netdata", NULL, "Clock difference"
30 , "microseconds diff", 99999, localhost->rrd_update_every, RRDSET_TYPE_LINE);
31 rrddim_add(check3, "caller", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
32 rrddim_add(check3, "netdata", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
33 rrddim_add(check3, "apps.plugin", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
35 now_realtime_timeval(&last);
39 // find the time to sleep in order to wait exactly update_every seconds
40 now_realtime_timeval(&now);
41 loop_usec = dt_usec(&now, &last);
42 usec = loop_usec - susec;
43 debug(D_PROCNETDEV_LOOP, "CHECK: last loop took %llu usec (worked for %llu, sleeped for %llu).", loop_usec, usec, susec);
45 if(usec < (localhost->rrd_update_every * USEC_PER_SEC / 2ULL)) susec = (localhost->rrd_update_every * USEC_PER_SEC) - usec;
46 else susec = localhost->rrd_update_every * USEC_PER_SEC / 2ULL;
48 // --------------------------------------------------------------------
49 // Calculate loop time
51 last.tv_sec = now.tv_sec;
52 last.tv_usec = now.tv_usec;
53 total_susec += loop_usec;
55 // --------------------------------------------------------------------
58 if(check1->counter_done) rrdset_next_usec(check1, loop_usec);
59 rrddim_set(check1, "absolute", 1000000);
60 rrddim_set(check1, "incremental", total_susec);
63 // --------------------------------------------------------------------
66 if(check2->counter_done) rrdset_next(check2);
67 rrddim_set(check2, "absolute", 1000000);
68 rrddim_set(check2, "incremental", total_susec);
71 // --------------------------------------------------------------------
74 if(!apps_cpu) apps_cpu = rrdset_find_localhost("apps.cpu");
75 if(check3->counter_done) rrdset_next_usec(check3, loop_usec);
76 now_realtime_timeval(&loop);
77 rrddim_set(check3, "caller", (long long) dt_usec(&loop, &check1->last_collected_time));
78 rrddim_set(check3, "netdata", (long long) dt_usec(&loop, &check2->last_collected_time));
79 if(apps_cpu) rrddim_set(check3, "apps.plugin", (long long) dt_usec(&loop, &apps_cpu->last_collected_time));
83 info("CHECKS thread exiting");
85 static_thread->enabled = 0;