// linux calculates this once every 5 seconds
#define MIN_LOADAVG_UPDATE_EVERY 5
-int do_proc_loadavg(int update_every, unsigned long long dt) {
- (void)dt;
-
+int do_proc_loadavg(int update_every, usec_t dt) {
static procfile *ff = NULL;
static int do_loadavg = -1, do_all_processes = -1;
+ static usec_t next_loadavg_dt = 0;
+ static RRDSET *load_chart = NULL, *processes_chart = NULL;
if(unlikely(!ff)) {
char filename[FILENAME_MAX + 1];
- snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, "/proc/loadavg");
+ snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/proc/loadavg");
+
ff = procfile_open(config_get("plugin:proc:/proc/loadavg", "filename to monitor", filename), " \t,:|/", PROCFILE_FLAG_DEFAULT);
+ if(unlikely(!ff))
+ return 1;
}
- if(unlikely(!ff))
- return 1;
ff = procfile_readall(ff);
if(unlikely(!ff))
return 0; // we return 0, so that we will retry to open it next time
- if(unlikely(do_loadavg == -1)) do_loadavg = config_get_boolean("plugin:proc:/proc/loadavg", "enable load average", 1);
- if(unlikely(do_all_processes == -1)) do_all_processes = config_get_boolean("plugin:proc:/proc/loadavg", "enable total processes", 1);
+ if(unlikely(do_loadavg == -1)) {
+ do_loadavg = config_get_boolean("plugin:proc:/proc/loadavg", "enable load average", 1);
+ do_all_processes = config_get_boolean("plugin:proc:/proc/loadavg", "enable total processes", 1);
+ }
if(unlikely(procfile_lines(ff) < 1)) {
error("/proc/loadavg has no lines.");
double load5 = strtod(procfile_lineword(ff, 0, 1), NULL);
double load15 = strtod(procfile_lineword(ff, 0, 2), NULL);
- //unsigned long long running_processes = strtoull(procfile_lineword(ff, 0, 3), NULL, 10);
- unsigned long long active_processes = strtoull(procfile_lineword(ff, 0, 4), NULL, 10);
- //unsigned long long next_pid = strtoull(procfile_lineword(ff, 0, 5), NULL, 10);
-
+ //unsigned long long running_processes = str2ull(procfile_lineword(ff, 0, 3));
+ unsigned long long active_processes = str2ull(procfile_lineword(ff, 0, 4));
+ //unsigned long long next_pid = str2ull(procfile_lineword(ff, 0, 5));
- RRDSET *st;
// --------------------------------------------------------------------
- if(likely(do_loadavg)) {
- st = rrdset_find_byname("system.load");
- if(unlikely(!st)) {
- st = rrdset_create("system", "load", NULL, "load", NULL, "System Load Average", "load", 100, (update_every < MIN_LOADAVG_UPDATE_EVERY)?MIN_LOADAVG_UPDATE_EVERY:update_every, RRDSET_TYPE_LINE);
-
- rrddim_add(st, "load1", NULL, 1, 1000, RRDDIM_ABSOLUTE);
- rrddim_add(st, "load5", NULL, 1, 1000, RRDDIM_ABSOLUTE);
- rrddim_add(st, "load15", NULL, 1, 1000, RRDDIM_ABSOLUTE);
+ if(next_loadavg_dt <= dt) {
+ if(likely(do_loadavg)) {
+ if(unlikely(!load_chart)) {
+ load_chart = rrdset_find_byname_localhost("system.load");
+ if(unlikely(!load_chart)) {
+ load_chart = rrdset_create_localhost("system", "load", NULL, "load", NULL, "System Load Average"
+ , "load", 100, (update_every < MIN_LOADAVG_UPDATE_EVERY)
+ ? MIN_LOADAVG_UPDATE_EVERY : update_every
+ , RRDSET_TYPE_LINE);
+ rrddim_add(load_chart, "load1", NULL, 1, 1000, RRD_ALGORITHM_ABSOLUTE);
+ rrddim_add(load_chart, "load5", NULL, 1, 1000, RRD_ALGORITHM_ABSOLUTE);
+ rrddim_add(load_chart, "load15", NULL, 1, 1000, RRD_ALGORITHM_ABSOLUTE);
+ }
+ }
+ else
+ rrdset_next(load_chart);
+
+ rrddim_set(load_chart, "load1", (collected_number) (load1 * 1000));
+ rrddim_set(load_chart, "load5", (collected_number) (load5 * 1000));
+ rrddim_set(load_chart, "load15", (collected_number) (load15 * 1000));
+ rrdset_done(load_chart);
}
- else rrdset_next(st);
- rrddim_set(st, "load1", (collected_number)(load1 * 1000));
- rrddim_set(st, "load5", (collected_number)(load5 * 1000));
- rrddim_set(st, "load15", (collected_number)(load15 * 1000));
- rrdset_done(st);
+ next_loadavg_dt = load_chart->update_every * USEC_PER_SEC;
}
+ else next_loadavg_dt -= dt;
// --------------------------------------------------------------------
if(likely(do_all_processes)) {
- st = rrdset_find_byname("system.active_processes");
- if(unlikely(!st)) {
- st = rrdset_create("system", "active_processes", NULL, "processes", NULL, "System Active Processes", "processes", 750, update_every, RRDSET_TYPE_LINE);
-
- rrddim_add(st, "active", NULL, 1, 1, RRDDIM_ABSOLUTE);
+ if(unlikely(!processes_chart)) {
+ processes_chart = rrdset_find_byname_localhost("system.active_processes");
+ if(unlikely(!processes_chart)) {
+ processes_chart = rrdset_create_localhost("system", "active_processes", NULL, "processes", NULL
+ , "System Active Processes", "processes", 750, update_every
+ , RRDSET_TYPE_LINE);
+ rrddim_add(processes_chart, "active", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
+ }
}
- else rrdset_next(st);
+ else rrdset_next(processes_chart);
- rrddim_set(st, "active", active_processes);
- rrdset_done(st);
+ rrddim_set(processes_chart, "active", active_processes);
+ rrdset_done(processes_chart);
}
return 0;