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added proc_loadavg.c

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1 parent de48d03 commit 894141ec4a8705690810cf5a0b886244bd6312a8 @ktsaou ktsaou committed Feb 9, 2016
Showing with 112 additions and 0 deletions.
  1. +88 −0 src/proc_loadavg.c
  2. +24 −0 web/index.html
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@@ -0,0 +1,88 @@
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "common.h"
+#include "appconfig.h"
+#include "procfile.h"
+#include "rrd.h"
+#include "plugin_proc.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];
+ snprintf(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;
+}
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@@ -946,6 +946,30 @@ <h4 class="modal-title" id="optionsModalLabel">netdata dashboard options</h4>
info: 'System swap memory, read from <code>/proc/meminfo</code>.'
},
+ 'mem.ksm_savings': {
+ heads: [
+ gaugeChart('Saved', '12%', 'savings', '#0099CC')
+ ]
+ },
+
+ 'mem.ksm_ratios': {
+ heads: [
+ function(id) {
+ return '<div data-netdata="' + id + '"'
+ + ' data-gauge-max-value="100"'
+ + ' data-chart-library="gauge"'
+ + ' data-title="Savings"'
+ + ' data-units="percentage %"'
+ + ' data-gauge-adjust="width"'
+ + ' data-width="12%"'
+ + ' data-before="0"'
+ + ' data-after="-CHART_DURATION"'
+ + ' data-points="CHART_DURATION"'
+ + ' role="application"></div>';
+ }
+ ]
+ },
+
'mem.committed': {
colors: NETDATA.colors[3]
},

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