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authorFederico Ceratto <federico.ceratto@gmail.com>2016-03-30 21:40:42 +0000
committerFederico Ceratto <federico.ceratto@gmail.com>2016-03-30 21:40:42 +0000
commit9ce153ce7167c11adba8ac225edc7a707e97c6eb (patch)
tree9f6e849cce2dcc7e5b4e9e6252c843dc2d0787a2 /src/proc_stat.c
downloadnetdata-9ce153ce7167c11adba8ac225edc7a707e97c6eb.tar.xz
netdata-9ce153ce7167c11adba8ac225edc7a707e97c6eb.zip
Imported Upstream version 1.0.0upstream/1.0.0
Diffstat (limited to 'src/proc_stat.c')
-rwxr-xr-xsrc/proc_stat.c204
1 files changed, 204 insertions, 0 deletions
diff --git a/src/proc_stat.c b/src/proc_stat.c
new file mode 100755
index 000000000..3d090ed71
--- /dev/null
+++ b/src/proc_stat.c
@@ -0,0 +1,204 @@
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "common.h"
+#include "log.h"
+#include "appconfig.h"
+#include "procfile.h"
+#include "rrd.h"
+#include "plugin_proc.h"
+
+#define RRD_TYPE_STAT "cpu"
+#define RRD_TYPE_STAT_LEN strlen(RRD_TYPE_STAT)
+
+int do_proc_stat(int update_every, unsigned long long dt) {
+ static procfile *ff = NULL;
+ static int do_cpu = -1, do_cpu_cores = -1, do_interrupts = -1, do_context = -1, do_forks = -1, do_processes = -1;
+
+ if(do_cpu == -1) do_cpu = config_get_boolean("plugin:proc:/proc/stat", "cpu utilization", 1);
+ if(do_cpu_cores == -1) do_cpu_cores = config_get_boolean("plugin:proc:/proc/stat", "per cpu core utilization", 1);
+ if(do_interrupts == -1) do_interrupts = config_get_boolean("plugin:proc:/proc/stat", "cpu interrupts", 1);
+ if(do_context == -1) do_context = config_get_boolean("plugin:proc:/proc/stat", "context switches", 1);
+ if(do_forks == -1) do_forks = config_get_boolean("plugin:proc:/proc/stat", "processes started", 1);
+ if(do_processes == -1) do_processes = config_get_boolean("plugin:proc:/proc/stat", "processes running", 1);
+
+ if(dt) {};
+
+ if(!ff) {
+ char filename[FILENAME_MAX + 1];
+ snprintf(filename, FILENAME_MAX, "%s%s", global_host_prefix, "/proc/stat");
+ ff = procfile_open(config_get("plugin:proc:/proc/stat", "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
+
+ uint32_t lines = procfile_lines(ff), l;
+ uint32_t words;
+
+ unsigned long long processes = 0, running = 0 , blocked = 0;
+ RRDSET *st;
+
+ for(l = 0; l < lines ;l++) {
+ if(strncmp(procfile_lineword(ff, l, 0), "cpu", 3) == 0) {
+ words = procfile_linewords(ff, l);
+ if(words < 10) {
+ error("Cannot read /proc/stat cpu line. Expected 10 params, read %d.", words);
+ continue;
+ }
+
+ char *id;
+ unsigned long long user = 0, nice = 0, system = 0, idle = 0, iowait = 0, irq = 0, softirq = 0, steal = 0, guest = 0, guest_nice = 0;
+
+ id = procfile_lineword(ff, l, 0);
+ user = strtoull(procfile_lineword(ff, l, 1), NULL, 10);
+ nice = strtoull(procfile_lineword(ff, l, 2), NULL, 10);
+ system = strtoull(procfile_lineword(ff, l, 3), NULL, 10);
+ idle = strtoull(procfile_lineword(ff, l, 4), NULL, 10);
+ iowait = strtoull(procfile_lineword(ff, l, 5), NULL, 10);
+ irq = strtoull(procfile_lineword(ff, l, 6), NULL, 10);
+ softirq = strtoull(procfile_lineword(ff, l, 7), NULL, 10);
+ steal = strtoull(procfile_lineword(ff, l, 8), NULL, 10);
+ guest = strtoull(procfile_lineword(ff, l, 9), NULL, 10);
+ if(words >= 11) guest_nice = strtoull(procfile_lineword(ff, l, 10), NULL, 10);
+
+ char *title = "Core utilization";
+ char *type = RRD_TYPE_STAT;
+ char *context = "cpu.cpu";
+ char *family = "utilization";
+ long priority = 1000;
+ int isthistotal = 0;
+
+ if(strcmp(id, "cpu") == 0) {
+ isthistotal = 1;
+ type = "system";
+ title = "Total CPU utilization";
+ context = "system.cpu";
+ family = id;
+ priority = 100;
+ }
+
+ if((isthistotal && do_cpu) || (!isthistotal && do_cpu_cores)) {
+ st = rrdset_find_bytype(type, id);
+ if(!st) {
+ st = rrdset_create(type, id, NULL, family, context, title, "percentage", priority, update_every, RRDSET_TYPE_STACKED);
+
+ long multiplier = 1;
+ long divisor = 1; // sysconf(_SC_CLK_TCK);
+
+ rrddim_add(st, "guest_nice", NULL, multiplier, divisor, RRDDIM_PCENT_OVER_DIFF_TOTAL);
+ rrddim_add(st, "guest", NULL, multiplier, divisor, RRDDIM_PCENT_OVER_DIFF_TOTAL);
+ rrddim_add(st, "steal", NULL, multiplier, divisor, RRDDIM_PCENT_OVER_DIFF_TOTAL);
+ rrddim_add(st, "softirq", NULL, multiplier, divisor, RRDDIM_PCENT_OVER_DIFF_TOTAL);
+ rrddim_add(st, "irq", NULL, multiplier, divisor, RRDDIM_PCENT_OVER_DIFF_TOTAL);
+ rrddim_add(st, "user", NULL, multiplier, divisor, RRDDIM_PCENT_OVER_DIFF_TOTAL);
+ rrddim_add(st, "system", NULL, multiplier, divisor, RRDDIM_PCENT_OVER_DIFF_TOTAL);
+ rrddim_add(st, "nice", NULL, multiplier, divisor, RRDDIM_PCENT_OVER_DIFF_TOTAL);
+ rrddim_add(st, "iowait", NULL, multiplier, divisor, RRDDIM_PCENT_OVER_DIFF_TOTAL);
+
+ rrddim_add(st, "idle", NULL, multiplier, divisor, RRDDIM_PCENT_OVER_DIFF_TOTAL);
+ rrddim_hide(st, "idle");
+ }
+ else rrdset_next(st);
+
+ rrddim_set(st, "user", user);
+ rrddim_set(st, "nice", nice);
+ rrddim_set(st, "system", system);
+ rrddim_set(st, "idle", idle);
+ rrddim_set(st, "iowait", iowait);
+ rrddim_set(st, "irq", irq);
+ rrddim_set(st, "softirq", softirq);
+ rrddim_set(st, "steal", steal);
+ rrddim_set(st, "guest", guest);
+ rrddim_set(st, "guest_nice", guest_nice);
+ rrdset_done(st);
+ }
+ }
+ else if(strcmp(procfile_lineword(ff, l, 0), "intr") == 0) {
+ unsigned long long value = strtoull(procfile_lineword(ff, l, 1), NULL, 10);
+
+ // --------------------------------------------------------------------
+
+ if(do_interrupts) {
+ st = rrdset_find_bytype("system", "intr");
+ if(!st) {
+ st = rrdset_create("system", "intr", NULL, "interrupts", NULL, "CPU Interrupts", "interrupts/s", 900, update_every, RRDSET_TYPE_LINE);
+ st->isdetail = 1;
+
+ rrddim_add(st, "interrupts", NULL, 1, 1, RRDDIM_INCREMENTAL);
+ }
+ else rrdset_next(st);
+
+ rrddim_set(st, "interrupts", value);
+ rrdset_done(st);
+ }
+ }
+ else if(strcmp(procfile_lineword(ff, l, 0), "ctxt") == 0) {
+ unsigned long long value = strtoull(procfile_lineword(ff, l, 1), NULL, 10);
+
+ // --------------------------------------------------------------------
+
+ if(do_context) {
+ st = rrdset_find_bytype("system", "ctxt");
+ if(!st) {
+ st = rrdset_create("system", "ctxt", NULL, "processes", NULL, "CPU Context Switches", "context switches/s", 800, update_every, RRDSET_TYPE_LINE);
+
+ rrddim_add(st, "switches", NULL, 1, 1, RRDDIM_INCREMENTAL);
+ }
+ else rrdset_next(st);
+
+ rrddim_set(st, "switches", value);
+ rrdset_done(st);
+ }
+ }
+ else if(!processes && strcmp(procfile_lineword(ff, l, 0), "processes") == 0) {
+ processes = strtoull(procfile_lineword(ff, l, 1), NULL, 10);
+ }
+ else if(!running && strcmp(procfile_lineword(ff, l, 0), "procs_running") == 0) {
+ running = strtoull(procfile_lineword(ff, l, 1), NULL, 10);
+ }
+ else if(!blocked && strcmp(procfile_lineword(ff, l, 0), "procs_blocked") == 0) {
+ blocked = strtoull(procfile_lineword(ff, l, 1), NULL, 10);
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ if(do_forks) {
+ st = rrdset_find_bytype("system", "forks");
+ if(!st) {
+ st = rrdset_create("system", "forks", NULL, "processes", NULL, "Started Processes", "processes/s", 700, update_every, RRDSET_TYPE_LINE);
+ st->isdetail = 1;
+
+ rrddim_add(st, "started", NULL, 1, 1, RRDDIM_INCREMENTAL);
+ }
+ else rrdset_next(st);
+
+ rrddim_set(st, "started", processes);
+ rrdset_done(st);
+ }
+
+ // --------------------------------------------------------------------
+
+ if(do_processes) {
+ st = rrdset_find_bytype("system", "processes");
+ if(!st) {
+ st = rrdset_create("system", "processes", NULL, "processes", NULL, "System Processes", "processes", 600, update_every, RRDSET_TYPE_LINE);
+
+ rrddim_add(st, "running", NULL, 1, 1, RRDDIM_ABSOLUTE);
+ rrddim_add(st, "blocked", NULL, -1, 1, RRDDIM_ABSOLUTE);
+ }
+ else rrdset_next(st);
+
+ rrddim_set(st, "running", running);
+ rrddim_set(st, "blocked", blocked);
+ rrdset_done(st);
+ }
+
+ return 0;
+}