diff options
Diffstat (limited to '')
| -rwxr-xr-x | src/proc_stat.c | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/src/proc_stat.c b/src/proc_stat.c new file mode 100755 index 00000000..3d090ed7 --- /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; +} |