#include "common.h"
-int do_proc_loadavg(int update_every, unsigned long long dt) {
- static procfile *ff = NULL;
- static int do_loadavg = -1, do_all_processes = -1;
-
- if(dt) {};
-
- if(!ff) {
- char filename[FILENAME_MAX + 1];
- snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, "/proc/loadavg");
- ff = procfile_open(config_get("plugin:proc:/proc/loadavg", "filename to monitor", filename), " \t,:|/", PROCFILE_FLAG_DEFAULT);
- }
- if(!ff) return 1;
-
- ff = procfile_readall(ff);
- if(!ff) return 0; // we return 0, so that we will retry to open it next time
-
- if(do_loadavg == -1) do_loadavg = config_get_boolean("plugin:proc:/proc/loadavg", "enable load average", 1);
- if(do_all_processes == -1) do_all_processes = config_get_boolean("plugin:proc:/proc/loadavg", "enable total processes", 1);
-
- if(procfile_lines(ff) < 1) {
- error("/proc/loadavg has no lines.");
- return 1;
- }
- if(procfile_linewords(ff, 0) < 6) {
- error("/proc/loadavg has less than 6 words in it.");
- return 1;
- }
-
- double load1 = strtod(procfile_lineword(ff, 0, 0), NULL);
- 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);
-
-
- RRDSET *st;
-
- // --------------------------------------------------------------------
-
- if(do_loadavg) {
- st = rrdset_find_byname("system.load");
- if(!st) {
- st = rrdset_create("system", "load", NULL, "load", NULL, "System Load Average", "load", 100, 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);
- }
- else rrdset_next(st);
-
- rrddim_set(st, "load1", load1 * 1000);
- rrddim_set(st, "load5", load5 * 1000);
- rrddim_set(st, "load15", load15 * 1000);
- rrdset_done(st);
- }
-
- // --------------------------------------------------------------------
-
- if(do_all_processes) {
- st = rrdset_find_byname("system.active_processes");
- if(!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);
- }
- else rrdset_next(st);
-
- rrddim_set(st, "active", active_processes);
- rrdset_done(st);
- }
-
- return 0;
+// linux calculates this once every 5 seconds
+#define MIN_LOADAVG_UPDATE_EVERY 5
+
+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", 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;
+ }
+
+ 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);
+ 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.");
+ return 1;
+ }
+ if(unlikely(procfile_linewords(ff, 0) < 6)) {
+ error("/proc/loadavg has less than 6 words in it.");
+ return 1;
+ }
+
+ double load1 = strtod(procfile_lineword(ff, 0, 0), NULL);
+ double load5 = strtod(procfile_lineword(ff, 0, 1), NULL);
+ double load15 = strtod(procfile_lineword(ff, 0, 2), NULL);
+
+ //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));
+
+
+ // --------------------------------------------------------------------
+
+ 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);
+ }
+
+ next_loadavg_dt = load_chart->update_every * USEC_PER_SEC;
+ }
+ else next_loadavg_dt -= dt;
+
+ // --------------------------------------------------------------------
+
+ if(likely(do_all_processes)) {
+ 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(processes_chart);
+
+ rrddim_set(processes_chart, "active", active_processes);
+ rrdset_done(processes_chart);
+ }
+
+ return 0;
}
projects / netdata.git / blobdiff