10 #include "plugin_proc.h"
12 #define RRD_TYPE_STAT "cpu"
13 #define RRD_TYPE_STAT_LEN strlen(RRD_TYPE_STAT)
15 int do_proc_stat(int update_every, unsigned long long dt) {
16 static procfile *ff = NULL;
17 static int do_cpu = -1, do_cpu_cores = -1, do_interrupts = -1, do_context = -1, do_forks = -1, do_processes = -1;
19 if(do_cpu == -1) do_cpu = config_get_boolean("plugin:proc:/proc/stat", "cpu utilization", 1);
20 if(do_cpu_cores == -1) do_cpu_cores = config_get_boolean("plugin:proc:/proc/stat", "per cpu core utilization", 1);
21 if(do_interrupts == -1) do_interrupts = config_get_boolean("plugin:proc:/proc/stat", "cpu interrupts", 1);
22 if(do_context == -1) do_context = config_get_boolean("plugin:proc:/proc/stat", "context switches", 1);
23 if(do_forks == -1) do_forks = config_get_boolean("plugin:proc:/proc/stat", "processes started", 1);
24 if(do_processes == -1) do_processes = config_get_boolean("plugin:proc:/proc/stat", "processes running", 1);
28 if(!ff) ff = procfile_open("/proc/stat", " \t:");
31 ff = procfile_readall(ff);
32 if(!ff) return 0; // we return 0, so that we will retry to open it next time
34 uint32_t lines = procfile_lines(ff), l;
37 unsigned long long processes = 0, running = 0 , blocked = 0;
40 for(l = 0; l < lines ;l++) {
41 if(strncmp(procfile_lineword(ff, l, 0), "cpu", 3) == 0) {
42 words = procfile_linewords(ff, l);
44 error("Cannot read /proc/stat cpu line. Expected 11 params, read %d.", words);
49 unsigned long long user = 0, nice = 0, system = 0, idle = 0, iowait = 0, irq = 0, softirq = 0, steal = 0, guest = 0, guest_nice = 0;
51 id = procfile_lineword(ff, l, 0);
52 user = strtoull(procfile_lineword(ff, l, 1), NULL, 10);
53 nice = strtoull(procfile_lineword(ff, l, 2), NULL, 10);
54 system = strtoull(procfile_lineword(ff, l, 3), NULL, 10);
55 idle = strtoull(procfile_lineword(ff, l, 4), NULL, 10);
56 iowait = strtoull(procfile_lineword(ff, l, 5), NULL, 10);
57 irq = strtoull(procfile_lineword(ff, l, 6), NULL, 10);
58 softirq = strtoull(procfile_lineword(ff, l, 7), NULL, 10);
59 steal = strtoull(procfile_lineword(ff, l, 8), NULL, 10);
60 guest = strtoull(procfile_lineword(ff, l, 9), NULL, 10);
61 guest_nice = strtoull(procfile_lineword(ff, l, 10), NULL, 10);
63 char *title = "Core utilization";
64 char *type = RRD_TYPE_STAT;
67 if(strcmp(id, "cpu") == 0) {
69 title = "Total CPU utilization";
74 if((isthistotal && do_cpu) || (!isthistotal && do_cpu_cores)) {
75 st = rrd_stats_find_bytype(type, id);
77 st = rrd_stats_create(type, id, NULL, "cpu", title, "percentage", priority, update_every, CHART_TYPE_STACKED);
80 long divisor = 1; // sysconf(_SC_CLK_TCK);
82 rrd_stats_dimension_add(st, "guest_nice", NULL, multiplier, divisor, RRD_DIMENSION_PCENT_OVER_DIFF_TOTAL);
83 rrd_stats_dimension_add(st, "guest", NULL, multiplier, divisor, RRD_DIMENSION_PCENT_OVER_DIFF_TOTAL);
84 rrd_stats_dimension_add(st, "steal", NULL, multiplier, divisor, RRD_DIMENSION_PCENT_OVER_DIFF_TOTAL);
85 rrd_stats_dimension_add(st, "softirq", NULL, multiplier, divisor, RRD_DIMENSION_PCENT_OVER_DIFF_TOTAL);
86 rrd_stats_dimension_add(st, "irq", NULL, multiplier, divisor, RRD_DIMENSION_PCENT_OVER_DIFF_TOTAL);
87 rrd_stats_dimension_add(st, "user", NULL, multiplier, divisor, RRD_DIMENSION_PCENT_OVER_DIFF_TOTAL);
88 rrd_stats_dimension_add(st, "system", NULL, multiplier, divisor, RRD_DIMENSION_PCENT_OVER_DIFF_TOTAL);
89 rrd_stats_dimension_add(st, "nice", NULL, multiplier, divisor, RRD_DIMENSION_PCENT_OVER_DIFF_TOTAL);
90 rrd_stats_dimension_add(st, "iowait", NULL, multiplier, divisor, RRD_DIMENSION_PCENT_OVER_DIFF_TOTAL);
92 rrd_stats_dimension_add(st, "idle", NULL, multiplier, divisor, RRD_DIMENSION_PCENT_OVER_DIFF_TOTAL);
93 rrd_stats_dimension_hide(st, "idle");
95 else rrd_stats_next(st);
97 rrd_stats_dimension_set(st, "user", user);
98 rrd_stats_dimension_set(st, "nice", nice);
99 rrd_stats_dimension_set(st, "system", system);
100 rrd_stats_dimension_set(st, "idle", idle);
101 rrd_stats_dimension_set(st, "iowait", iowait);
102 rrd_stats_dimension_set(st, "irq", irq);
103 rrd_stats_dimension_set(st, "softirq", softirq);
104 rrd_stats_dimension_set(st, "steal", steal);
105 rrd_stats_dimension_set(st, "guest", guest);
106 rrd_stats_dimension_set(st, "guest_nice", guest_nice);
110 else if(strcmp(procfile_lineword(ff, l, 0), "intr") == 0) {
111 unsigned long long value = strtoull(procfile_lineword(ff, l, 1), NULL, 10);
113 // --------------------------------------------------------------------
116 st = rrd_stats_find_bytype("system", "intr");
118 st = rrd_stats_create("system", "intr", NULL, "cpu", "CPU Interrupts", "interrupts/s", 900, update_every, CHART_TYPE_LINE);
121 rrd_stats_dimension_add(st, "interrupts", NULL, 1, 1 * update_every, RRD_DIMENSION_INCREMENTAL);
123 else rrd_stats_next(st);
125 rrd_stats_dimension_set(st, "interrupts", value);
129 else if(strcmp(procfile_lineword(ff, l, 0), "ctxt") == 0) {
130 unsigned long long value = strtoull(procfile_lineword(ff, l, 1), NULL, 10);
132 // --------------------------------------------------------------------
135 st = rrd_stats_find_bytype("system", "ctxt");
137 st = rrd_stats_create("system", "ctxt", NULL, "cpu", "CPU Context Switches", "context switches/s", 800, update_every, CHART_TYPE_LINE);
139 rrd_stats_dimension_add(st, "switches", NULL, 1, 1 * update_every, RRD_DIMENSION_INCREMENTAL);
141 else rrd_stats_next(st);
143 rrd_stats_dimension_set(st, "switches", value);
147 else if(!processes && strcmp(procfile_lineword(ff, l, 0), "processes") == 0) {
148 processes = strtoull(procfile_lineword(ff, l, 1), NULL, 10);
150 else if(!running && strcmp(procfile_lineword(ff, l, 0), "procs_running") == 0) {
151 running = strtoull(procfile_lineword(ff, l, 1), NULL, 10);
153 else if(!blocked && strcmp(procfile_lineword(ff, l, 0), "procs_blocked") == 0) {
154 blocked = strtoull(procfile_lineword(ff, l, 1), NULL, 10);
158 // --------------------------------------------------------------------
161 st = rrd_stats_find_bytype("system", "forks");
163 st = rrd_stats_create("system", "forks", NULL, "cpu", "New Processes", "processes/s", 700, update_every, CHART_TYPE_LINE);
166 rrd_stats_dimension_add(st, "started", NULL, 1, 1 * update_every, RRD_DIMENSION_INCREMENTAL);
168 else rrd_stats_next(st);
170 rrd_stats_dimension_set(st, "started", processes);
174 // --------------------------------------------------------------------
177 st = rrd_stats_find_bytype("system", "processes");
179 st = rrd_stats_create("system", "processes", NULL, "cpu", "Processes", "processes", 600, update_every, CHART_TYPE_LINE);
181 rrd_stats_dimension_add(st, "running", NULL, 1, 1, RRD_DIMENSION_ABSOLUTE);
182 rrd_stats_dimension_add(st, "blocked", NULL, -1, 1, RRD_DIMENSION_ABSOLUTE);
184 else rrd_stats_next(st);
186 rrd_stats_dimension_set(st, "running", running);
187 rrd_stats_dimension_set(st, "blocked", blocked);