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-rw-r--r--collectors/proc.plugin/proc_stat.c1070
1 files changed, 0 insertions, 1070 deletions
diff --git a/collectors/proc.plugin/proc_stat.c b/collectors/proc.plugin/proc_stat.c
deleted file mode 100644
index 84160f22f..000000000
--- a/collectors/proc.plugin/proc_stat.c
+++ /dev/null
@@ -1,1070 +0,0 @@
-// SPDX-License-Identifier: GPL-3.0-or-later
-
-#include "plugin_proc.h"
-
-#define PLUGIN_PROC_MODULE_STAT_NAME "/proc/stat"
-
-struct per_core_single_number_file {
- unsigned char found:1;
- const char *filename;
- int fd;
- collected_number value;
- RRDDIM *rd;
-};
-
-struct last_ticks {
- collected_number frequency;
- collected_number ticks;
-};
-
-// This is an extension of struct per_core_single_number_file at CPU_FREQ_INDEX.
-// Either scaling_cur_freq or time_in_state file is used at one time.
-struct per_core_time_in_state_file {
- const char *filename;
- procfile *ff;
- size_t last_ticks_len;
- struct last_ticks *last_ticks;
-};
-
-#define CORE_THROTTLE_COUNT_INDEX 0
-#define PACKAGE_THROTTLE_COUNT_INDEX 1
-#define CPU_FREQ_INDEX 2
-#define PER_CORE_FILES 3
-
-struct cpu_chart {
- const char *id;
-
- RRDSET *st;
- RRDDIM *rd_user;
- RRDDIM *rd_nice;
- RRDDIM *rd_system;
- RRDDIM *rd_idle;
- RRDDIM *rd_iowait;
- RRDDIM *rd_irq;
- RRDDIM *rd_softirq;
- RRDDIM *rd_steal;
- RRDDIM *rd_guest;
- RRDDIM *rd_guest_nice;
-
- struct per_core_single_number_file files[PER_CORE_FILES];
-
- struct per_core_time_in_state_file time_in_state_files;
-};
-
-static int keep_per_core_fds_open = CONFIG_BOOLEAN_YES;
-static int keep_cpuidle_fds_open = CONFIG_BOOLEAN_YES;
-
-static int read_per_core_files(struct cpu_chart *all_cpu_charts, size_t len, size_t index) {
- char buf[50 + 1];
- size_t x, files_read = 0, files_nonzero = 0;
-
- for(x = 0; x < len ; x++) {
- struct per_core_single_number_file *f = &all_cpu_charts[x].files[index];
-
- f->found = 0;
-
- if(unlikely(!f->filename))
- continue;
-
- if(unlikely(f->fd == -1)) {
- f->fd = open(f->filename, O_RDONLY);
- if (unlikely(f->fd == -1)) {
- collector_error("Cannot open file '%s'", f->filename);
- continue;
- }
- }
-
- ssize_t ret = read(f->fd, buf, 50);
- if(unlikely(ret < 0)) {
- // cannot read that file
-
- collector_error("Cannot read file '%s'", f->filename);
- close(f->fd);
- f->fd = -1;
- continue;
- }
- else {
- // successful read
-
- // terminate the buffer
- buf[ret] = '\0';
-
- if(unlikely(keep_per_core_fds_open != CONFIG_BOOLEAN_YES)) {
- close(f->fd);
- f->fd = -1;
- }
- else if(lseek(f->fd, 0, SEEK_SET) == -1) {
- collector_error("Cannot seek in file '%s'", f->filename);
- close(f->fd);
- f->fd = -1;
- }
- }
-
- files_read++;
- f->found = 1;
-
- f->value = str2ll(buf, NULL);
- if(likely(f->value != 0))
- files_nonzero++;
- }
-
- if(files_read == 0)
- return -1;
-
- if(files_nonzero == 0)
- return 0;
-
- return (int)files_nonzero;
-}
-
-static int read_per_core_time_in_state_files(struct cpu_chart *all_cpu_charts, size_t len, size_t index) {
- size_t x, files_read = 0, files_nonzero = 0;
-
- for(x = 0; x < len ; x++) {
- struct per_core_single_number_file *f = &all_cpu_charts[x].files[index];
- struct per_core_time_in_state_file *tsf = &all_cpu_charts[x].time_in_state_files;
-
- f->found = 0;
-
- if(unlikely(!tsf->filename))
- continue;
-
- if(unlikely(!tsf->ff)) {
- tsf->ff = procfile_open(tsf->filename, " \t:", PROCFILE_FLAG_DEFAULT);
- if(unlikely(!tsf->ff))
- {
- collector_error("Cannot open file '%s'", tsf->filename);
- continue;
- }
- }
-
- tsf->ff = procfile_readall(tsf->ff);
- if(unlikely(!tsf->ff)) {
- collector_error("Cannot read file '%s'", tsf->filename);
- procfile_close(tsf->ff);
- tsf->ff = NULL;
- continue;
- }
- else {
- // successful read
-
- size_t lines = procfile_lines(tsf->ff), l;
- size_t words;
- unsigned long long total_ticks_since_last = 0, avg_freq = 0;
-
- // Check if there is at least one frequency in time_in_state
- if (procfile_word(tsf->ff, 0)[0] == '\0') {
- if(unlikely(keep_per_core_fds_open != CONFIG_BOOLEAN_YES)) {
- procfile_close(tsf->ff);
- tsf->ff = NULL;
- }
- // TODO: Is there a better way to avoid spikes than calculating the average over
- // the whole period under schedutil governor?
- // freez(tsf->last_ticks);
- // tsf->last_ticks = NULL;
- // tsf->last_ticks_len = 0;
- continue;
- }
-
- if (unlikely(tsf->last_ticks_len < lines || tsf->last_ticks == NULL)) {
- tsf->last_ticks = reallocz(tsf->last_ticks, sizeof(struct last_ticks) * lines);
- memset(tsf->last_ticks, 0, sizeof(struct last_ticks) * lines);
- tsf->last_ticks_len = lines;
- }
-
- f->value = 0;
-
- for(l = 0; l < lines - 1 ;l++) {
- unsigned long long frequency = 0, ticks = 0, ticks_since_last = 0;
-
- words = procfile_linewords(tsf->ff, l);
- if(unlikely(words < 2)) {
- collector_error("Cannot read time_in_state line. Expected 2 params, read %zu.", words);
- continue;
- }
- frequency = str2ull(procfile_lineword(tsf->ff, l, 0), NULL);
- ticks = str2ull(procfile_lineword(tsf->ff, l, 1), NULL);
-
- // It is assumed that frequencies are static and sorted
- ticks_since_last = ticks - tsf->last_ticks[l].ticks;
- tsf->last_ticks[l].frequency = frequency;
- tsf->last_ticks[l].ticks = ticks;
-
- total_ticks_since_last += ticks_since_last;
- avg_freq += frequency * ticks_since_last;
-
- }
-
- if (likely(total_ticks_since_last)) {
- avg_freq /= total_ticks_since_last;
- f->value = avg_freq;
- }
-
- if(unlikely(keep_per_core_fds_open != CONFIG_BOOLEAN_YES)) {
- procfile_close(tsf->ff);
- tsf->ff = NULL;
- }
- }
-
- files_read++;
-
- f->found = 1;
-
- if(likely(f->value != 0))
- files_nonzero++;
- }
-
- if(unlikely(files_read == 0))
- return -1;
-
- if(unlikely(files_nonzero == 0))
- return 0;
-
- return (int)files_nonzero;
-}
-
-static void chart_per_core_files(struct cpu_chart *all_cpu_charts, size_t len, size_t index, RRDSET *st, collected_number multiplier, collected_number divisor, RRD_ALGORITHM algorithm) {
- size_t x;
- for(x = 0; x < len ; x++) {
- struct per_core_single_number_file *f = &all_cpu_charts[x].files[index];
-
- if(unlikely(!f->found))
- continue;
-
- if(unlikely(!f->rd))
- f->rd = rrddim_add(st, all_cpu_charts[x].id, NULL, multiplier, divisor, algorithm);
-
- rrddim_set_by_pointer(st, f->rd, f->value);
- }
-}
-
-struct cpuidle_state {
- char *name;
-
- char *time_filename;
- int time_fd;
-
- collected_number value;
-
- RRDDIM *rd;
-};
-
-struct per_core_cpuidle_chart {
- RRDSET *st;
-
- RRDDIM *active_time_rd;
- collected_number active_time;
- collected_number last_active_time;
-
- struct cpuidle_state *cpuidle_state;
- size_t cpuidle_state_len;
- int rescan_cpu_states;
-};
-
-static void* wake_cpu_thread(void* core) {
- pthread_t thread;
- cpu_set_t cpu_set;
- static size_t cpu_wakeups = 0;
- static int errors = 0;
-
- CPU_ZERO(&cpu_set);
- CPU_SET(*(int*)core, &cpu_set);
-
- thread = pthread_self();
- if(unlikely(pthread_setaffinity_np(thread, sizeof(cpu_set_t), &cpu_set))) {
- if(unlikely(errors < 8)) {
- collector_error("Cannot set CPU affinity for core %d", *(int*)core);
- errors++;
- }
- else if(unlikely(errors < 9)) {
- collector_error("CPU affinity errors are disabled");
- errors++;
- }
- }
-
- // Make the CPU core do something to force it to update its idle counters
- cpu_wakeups++;
-
- return 0;
-}
-
-static int read_schedstat(char *schedstat_filename, struct per_core_cpuidle_chart **cpuidle_charts_address, size_t *schedstat_cores_found) {
- static size_t cpuidle_charts_len = 0;
- static procfile *ff = NULL;
- struct per_core_cpuidle_chart *cpuidle_charts = *cpuidle_charts_address;
- size_t cores_found = 0;
-
- if(unlikely(!ff)) {
- ff = procfile_open(schedstat_filename, " \t:", PROCFILE_FLAG_DEFAULT);
- if(unlikely(!ff)) return 1;
- }
-
- ff = procfile_readall(ff);
- if(unlikely(!ff)) return 1;
-
- size_t lines = procfile_lines(ff), l;
- size_t words;
-
- for(l = 0; l < lines ;l++) {
- char *row_key = procfile_lineword(ff, l, 0);
-
- // faster strncmp(row_key, "cpu", 3) == 0
- if(likely(row_key[0] == 'c' && row_key[1] == 'p' && row_key[2] == 'u')) {
- words = procfile_linewords(ff, l);
- if(unlikely(words < 10)) {
- collector_error("Cannot read /proc/schedstat cpu line. Expected 9 params, read %zu.", words);
- return 1;
- }
- cores_found++;
-
- size_t core = str2ul(&row_key[3]);
- if(unlikely(core >= cores_found)) {
- collector_error("Core %zu found but no more than %zu cores were expected.", core, cores_found);
- return 1;
- }
-
- if(unlikely(cpuidle_charts_len < cores_found)) {
- cpuidle_charts = reallocz(cpuidle_charts, sizeof(struct per_core_cpuidle_chart) * cores_found);
- *cpuidle_charts_address = cpuidle_charts;
- memset(cpuidle_charts + cpuidle_charts_len, 0, sizeof(struct per_core_cpuidle_chart) * (cores_found - cpuidle_charts_len));
- cpuidle_charts_len = cores_found;
- }
-
- cpuidle_charts[core].active_time = str2ull(procfile_lineword(ff, l, 7), NULL) / 1000;
- }
- }
-
- *schedstat_cores_found = cores_found;
- return 0;
-}
-
-static int read_one_state(char *buf, const char *filename, int *fd) {
- ssize_t ret = read(*fd, buf, 50);
-
- if(unlikely(ret <= 0)) {
- // cannot read that file
- collector_error("Cannot read file '%s'", filename);
- close(*fd);
- *fd = -1;
- return 0;
- }
- else {
- // successful read
-
- // terminate the buffer
- buf[ret - 1] = '\0';
-
- if(unlikely(keep_cpuidle_fds_open != CONFIG_BOOLEAN_YES)) {
- close(*fd);
- *fd = -1;
- }
- else if(lseek(*fd, 0, SEEK_SET) == -1) {
- collector_error("Cannot seek in file '%s'", filename);
- close(*fd);
- *fd = -1;
- }
- }
-
- return 1;
-}
-
-static int read_cpuidle_states(char *cpuidle_name_filename , char *cpuidle_time_filename, struct per_core_cpuidle_chart *cpuidle_charts, size_t core) {
- char filename[FILENAME_MAX + 1];
- static char next_state_filename[FILENAME_MAX + 1];
- struct stat stbuf;
- struct per_core_cpuidle_chart *cc = &cpuidle_charts[core];
- size_t state;
-
- if(unlikely(!cc->cpuidle_state_len || cc->rescan_cpu_states)) {
- int state_file_found = 1; // check at least one state
-
- if(cc->cpuidle_state_len) {
- for(state = 0; state < cc->cpuidle_state_len; state++) {
- freez(cc->cpuidle_state[state].name);
-
- freez(cc->cpuidle_state[state].time_filename);
- close(cc->cpuidle_state[state].time_fd);
- cc->cpuidle_state[state].time_fd = -1;
- }
-
- freez(cc->cpuidle_state);
- cc->cpuidle_state = NULL;
- cc->cpuidle_state_len = 0;
-
- cc->active_time_rd = NULL;
- cc->st = NULL;
- }
-
- while(likely(state_file_found)) {
- snprintfz(filename, FILENAME_MAX, cpuidle_name_filename, core, cc->cpuidle_state_len);
- if (stat(filename, &stbuf) == 0)
- cc->cpuidle_state_len++;
- else
- state_file_found = 0;
- }
- snprintfz(next_state_filename, FILENAME_MAX, cpuidle_name_filename, core, cc->cpuidle_state_len);
-
- if(likely(cc->cpuidle_state_len))
- cc->cpuidle_state = callocz(cc->cpuidle_state_len, sizeof(struct cpuidle_state));
-
- for(state = 0; state < cc->cpuidle_state_len; state++) {
- char name_buf[50 + 1];
- snprintfz(filename, FILENAME_MAX, cpuidle_name_filename, core, state);
-
- int fd = open(filename, O_RDONLY, 0666);
- if(unlikely(fd == -1)) {
- collector_error("Cannot open file '%s'", filename);
- cc->rescan_cpu_states = 1;
- return 1;
- }
-
- ssize_t r = read(fd, name_buf, 50);
- if(unlikely(r < 1)) {
- collector_error("Cannot read file '%s'", filename);
- close(fd);
- cc->rescan_cpu_states = 1;
- return 1;
- }
-
- name_buf[r - 1] = '\0'; // erase extra character
- cc->cpuidle_state[state].name = strdupz(trim(name_buf));
- close(fd);
-
- snprintfz(filename, FILENAME_MAX, cpuidle_time_filename, core, state);
- cc->cpuidle_state[state].time_filename = strdupz(filename);
- cc->cpuidle_state[state].time_fd = -1;
- }
-
- cc->rescan_cpu_states = 0;
- }
-
- for(state = 0; state < cc->cpuidle_state_len; state++) {
-
- struct cpuidle_state *cs = &cc->cpuidle_state[state];
-
- if(unlikely(cs->time_fd == -1)) {
- cs->time_fd = open(cs->time_filename, O_RDONLY);
- if (unlikely(cs->time_fd == -1)) {
- collector_error("Cannot open file '%s'", cs->time_filename);
- cc->rescan_cpu_states = 1;
- return 1;
- }
- }
-
- char time_buf[50 + 1];
- if(likely(read_one_state(time_buf, cs->time_filename, &cs->time_fd))) {
- cs->value = str2ll(time_buf, NULL);
- }
- else {
- cc->rescan_cpu_states = 1;
- return 1;
- }
- }
-
- // check if the number of states was increased
- if(unlikely(stat(next_state_filename, &stbuf) == 0)) {
- cc->rescan_cpu_states = 1;
- return 1;
- }
-
- return 0;
-}
-
-int do_proc_stat(int update_every, usec_t dt) {
- (void)dt;
-
- static struct cpu_chart *all_cpu_charts = NULL;
- static size_t all_cpu_charts_size = 0;
- 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,
- do_core_throttle_count = -1, do_package_throttle_count = -1, do_cpu_freq = -1, do_cpuidle = -1;
- static uint32_t hash_intr, hash_ctxt, hash_processes, hash_procs_running, hash_procs_blocked;
- static char *core_throttle_count_filename = NULL, *package_throttle_count_filename = NULL, *scaling_cur_freq_filename = NULL,
- *time_in_state_filename = NULL, *schedstat_filename = NULL, *cpuidle_name_filename = NULL, *cpuidle_time_filename = NULL;
- static const RRDVAR_ACQUIRED *cpus_var = NULL;
- static int accurate_freq_avail = 0, accurate_freq_is_used = 0;
- size_t cores_found = (size_t)get_system_cpus();
-
- if(unlikely(do_cpu == -1)) {
- do_cpu = config_get_boolean("plugin:proc:/proc/stat", "cpu utilization", CONFIG_BOOLEAN_YES);
- do_cpu_cores = config_get_boolean("plugin:proc:/proc/stat", "per cpu core utilization", CONFIG_BOOLEAN_YES);
- do_interrupts = config_get_boolean("plugin:proc:/proc/stat", "cpu interrupts", CONFIG_BOOLEAN_YES);
- do_context = config_get_boolean("plugin:proc:/proc/stat", "context switches", CONFIG_BOOLEAN_YES);
- do_forks = config_get_boolean("plugin:proc:/proc/stat", "processes started", CONFIG_BOOLEAN_YES);
- do_processes = config_get_boolean("plugin:proc:/proc/stat", "processes running", CONFIG_BOOLEAN_YES);
-
- // give sane defaults based on the number of processors
- if(unlikely(get_system_cpus() > 128)) {
- // the system has too many processors
- keep_per_core_fds_open = CONFIG_BOOLEAN_NO;
- do_core_throttle_count = CONFIG_BOOLEAN_NO;
- do_package_throttle_count = CONFIG_BOOLEAN_NO;
- do_cpu_freq = CONFIG_BOOLEAN_NO;
- do_cpuidle = CONFIG_BOOLEAN_NO;
- }
- else {
- // the system has a reasonable number of processors
- keep_per_core_fds_open = CONFIG_BOOLEAN_YES;
- do_core_throttle_count = CONFIG_BOOLEAN_AUTO;
- do_package_throttle_count = CONFIG_BOOLEAN_NO;
- do_cpu_freq = CONFIG_BOOLEAN_YES;
- do_cpuidle = CONFIG_BOOLEAN_YES;
- }
- if(unlikely(get_system_cpus() > 24)) {
- // the system has too many processors
- keep_cpuidle_fds_open = CONFIG_BOOLEAN_NO;
- }
- else {
- // the system has a reasonable number of processors
- keep_cpuidle_fds_open = CONFIG_BOOLEAN_YES;
- }
-
- keep_per_core_fds_open = config_get_boolean("plugin:proc:/proc/stat", "keep per core files open", keep_per_core_fds_open);
- keep_cpuidle_fds_open = config_get_boolean("plugin:proc:/proc/stat", "keep cpuidle files open", keep_cpuidle_fds_open);
- do_core_throttle_count = config_get_boolean_ondemand("plugin:proc:/proc/stat", "core_throttle_count", do_core_throttle_count);
- do_package_throttle_count = config_get_boolean_ondemand("plugin:proc:/proc/stat", "package_throttle_count", do_package_throttle_count);
- do_cpu_freq = config_get_boolean_ondemand("plugin:proc:/proc/stat", "cpu frequency", do_cpu_freq);
- do_cpuidle = config_get_boolean_ondemand("plugin:proc:/proc/stat", "cpu idle states", do_cpuidle);
-
- hash_intr = simple_hash("intr");
- hash_ctxt = simple_hash("ctxt");
- hash_processes = simple_hash("processes");
- hash_procs_running = simple_hash("procs_running");
- hash_procs_blocked = simple_hash("procs_blocked");
-
- char filename[FILENAME_MAX + 1];
- snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/sys/devices/system/cpu/%s/thermal_throttle/core_throttle_count");
- core_throttle_count_filename = config_get("plugin:proc:/proc/stat", "core_throttle_count filename to monitor", filename);
-
- snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/sys/devices/system/cpu/%s/thermal_throttle/package_throttle_count");
- package_throttle_count_filename = config_get("plugin:proc:/proc/stat", "package_throttle_count filename to monitor", filename);
-
- snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/sys/devices/system/cpu/%s/cpufreq/scaling_cur_freq");
- scaling_cur_freq_filename = config_get("plugin:proc:/proc/stat", "scaling_cur_freq filename to monitor", filename);
-
- snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/sys/devices/system/cpu/%s/cpufreq/stats/time_in_state");
- time_in_state_filename = config_get("plugin:proc:/proc/stat", "time_in_state filename to monitor", filename);
-
- snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/proc/schedstat");
- schedstat_filename = config_get("plugin:proc:/proc/stat", "schedstat filename to monitor", filename);
-
- if(do_cpuidle != CONFIG_BOOLEAN_NO) {
- struct stat stbuf;
-
- if (stat(schedstat_filename, &stbuf))
- do_cpuidle = CONFIG_BOOLEAN_NO;
- }
-
- snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/sys/devices/system/cpu/cpu%zu/cpuidle/state%zu/name");
- cpuidle_name_filename = config_get("plugin:proc:/proc/stat", "cpuidle name filename to monitor", filename);
-
- snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/sys/devices/system/cpu/cpu%zu/cpuidle/state%zu/time");
- cpuidle_time_filename = config_get("plugin:proc:/proc/stat", "cpuidle time filename to monitor", filename);
- }
-
- if(unlikely(!ff)) {
- char filename[FILENAME_MAX + 1];
- snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/proc/stat");
- ff = procfile_open(config_get("plugin:proc:/proc/stat", "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
-
- size_t lines = procfile_lines(ff), l;
- size_t words;
-
- unsigned long long processes = 0, running = 0 , blocked = 0;
-
- for(l = 0; l < lines ;l++) {
- char *row_key = procfile_lineword(ff, l, 0);
- uint32_t hash = simple_hash(row_key);
-
- // faster strncmp(row_key, "cpu", 3) == 0
- if(likely(row_key[0] == 'c' && row_key[1] == 'p' && row_key[2] == 'u')) {
- words = procfile_linewords(ff, l);
- if(unlikely(words < 9)) {
- collector_error("Cannot read /proc/stat cpu line. Expected 9 params, read %zu.", words);
- continue;
- }
-
- size_t core = (row_key[3] == '\0') ? 0 : str2ul(&row_key[3]) + 1;
- if(likely(core > 0)) cores_found = core;
-
- if(likely((core == 0 && do_cpu) || (core > 0 && do_cpu_cores))) {
- 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 = row_key;
- user = str2ull(procfile_lineword(ff, l, 1), NULL);
- nice = str2ull(procfile_lineword(ff, l, 2), NULL);
- system = str2ull(procfile_lineword(ff, l, 3), NULL);
- idle = str2ull(procfile_lineword(ff, l, 4), NULL);
- iowait = str2ull(procfile_lineword(ff, l, 5), NULL);
- irq = str2ull(procfile_lineword(ff, l, 6), NULL);
- softirq = str2ull(procfile_lineword(ff, l, 7), NULL);
- steal = str2ull(procfile_lineword(ff, l, 8), NULL);
-
- guest = str2ull(procfile_lineword(ff, l, 9), NULL);
- user -= guest;
-
- guest_nice = str2ull(procfile_lineword(ff, l, 10), NULL);
- nice -= guest_nice;
-
- char *title, *type, *context, *family;
- long priority;
-
- if(unlikely(core >= all_cpu_charts_size)) {
- size_t old_cpu_charts_size = all_cpu_charts_size;
- all_cpu_charts_size = core + 1;
- all_cpu_charts = reallocz(all_cpu_charts, sizeof(struct cpu_chart) * all_cpu_charts_size);
- memset(&all_cpu_charts[old_cpu_charts_size], 0, sizeof(struct cpu_chart) * (all_cpu_charts_size - old_cpu_charts_size));
- }
- struct cpu_chart *cpu_chart = &all_cpu_charts[core];
-
- if(unlikely(!cpu_chart->st)) {
- cpu_chart->id = strdupz(id);
-
- if(unlikely(core == 0)) {
- title = "Total CPU utilization";
- type = "system";
- context = "system.cpu";
- family = id;
- priority = NETDATA_CHART_PRIO_SYSTEM_CPU;
- }
- else {
- title = "Core utilization";
- type = "cpu";
- context = "cpu.cpu";
- family = "utilization";
- priority = NETDATA_CHART_PRIO_CPU_PER_CORE;
-
- char filename[FILENAME_MAX + 1];
- struct stat stbuf;
-
- if(do_core_throttle_count != CONFIG_BOOLEAN_NO) {
- snprintfz(filename, FILENAME_MAX, core_throttle_count_filename, id);
- if (stat(filename, &stbuf) == 0) {
- cpu_chart->files[CORE_THROTTLE_COUNT_INDEX].filename = strdupz(filename);
- cpu_chart->files[CORE_THROTTLE_COUNT_INDEX].fd = -1;
- do_core_throttle_count = CONFIG_BOOLEAN_YES;
- }
- }
-
- if(do_package_throttle_count != CONFIG_BOOLEAN_NO) {
- snprintfz(filename, FILENAME_MAX, package_throttle_count_filename, id);
- if (stat(filename, &stbuf) == 0) {
- cpu_chart->files[PACKAGE_THROTTLE_COUNT_INDEX].filename = strdupz(filename);
- cpu_chart->files[PACKAGE_THROTTLE_COUNT_INDEX].fd = -1;
- do_package_throttle_count = CONFIG_BOOLEAN_YES;
- }
- }
-
- if(do_cpu_freq != CONFIG_BOOLEAN_NO) {
-
- snprintfz(filename, FILENAME_MAX, scaling_cur_freq_filename, id);
-
- if (stat(filename, &stbuf) == 0) {
- cpu_chart->files[CPU_FREQ_INDEX].filename = strdupz(filename);
- cpu_chart->files[CPU_FREQ_INDEX].fd = -1;
- do_cpu_freq = CONFIG_BOOLEAN_YES;
- }
-
- snprintfz(filename, FILENAME_MAX, time_in_state_filename, id);
-
- if (stat(filename, &stbuf) == 0) {
- cpu_chart->time_in_state_files.filename = strdupz(filename);
- cpu_chart->time_in_state_files.ff = NULL;
- do_cpu_freq = CONFIG_BOOLEAN_YES;
- accurate_freq_avail = 1;
- }
- }
- }
-
- cpu_chart->st = rrdset_create_localhost(
- type
- , id
- , NULL
- , family
- , context
- , title
- , "percentage"
- , PLUGIN_PROC_NAME
- , PLUGIN_PROC_MODULE_STAT_NAME
- , priority + core
- , update_every
- , RRDSET_TYPE_STACKED
- );
-
- long multiplier = 1;
- long divisor = 1; // sysconf(_SC_CLK_TCK);
-
- cpu_chart->rd_guest_nice = rrddim_add(cpu_chart->st, "guest_nice", NULL, multiplier, divisor, RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL);
- cpu_chart->rd_guest = rrddim_add(cpu_chart->st, "guest", NULL, multiplier, divisor, RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL);
- cpu_chart->rd_steal = rrddim_add(cpu_chart->st, "steal", NULL, multiplier, divisor, RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL);
- cpu_chart->rd_softirq = rrddim_add(cpu_chart->st, "softirq", NULL, multiplier, divisor, RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL);
- cpu_chart->rd_irq = rrddim_add(cpu_chart->st, "irq", NULL, multiplier, divisor, RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL);
- cpu_chart->rd_user = rrddim_add(cpu_chart->st, "user", NULL, multiplier, divisor, RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL);
- cpu_chart->rd_system = rrddim_add(cpu_chart->st, "system", NULL, multiplier, divisor, RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL);
- cpu_chart->rd_nice = rrddim_add(cpu_chart->st, "nice", NULL, multiplier, divisor, RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL);
- cpu_chart->rd_iowait = rrddim_add(cpu_chart->st, "iowait", NULL, multiplier, divisor, RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL);
- cpu_chart->rd_idle = rrddim_add(cpu_chart->st, "idle", NULL, multiplier, divisor, RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL);
- rrddim_hide(cpu_chart->st, "idle");
-
- if (core > 0) {
- char cpu_core[50 + 1];
- snprintfz(cpu_core, 50, "cpu%lu", core - 1);
- rrdlabels_add(cpu_chart->st->rrdlabels, "cpu", cpu_core, RRDLABEL_SRC_AUTO);
- }
-
- if(unlikely(core == 0 && cpus_var == NULL))
- cpus_var = rrdvar_custom_host_variable_add_and_acquire(localhost, "active_processors");
- }
-
- rrddim_set_by_pointer(cpu_chart->st, cpu_chart->rd_user, user);
- rrddim_set_by_pointer(cpu_chart->st, cpu_chart->rd_nice, nice);
- rrddim_set_by_pointer(cpu_chart->st, cpu_chart->rd_system, system);
- rrddim_set_by_pointer(cpu_chart->st, cpu_chart->rd_idle, idle);
- rrddim_set_by_pointer(cpu_chart->st, cpu_chart->rd_iowait, iowait);
- rrddim_set_by_pointer(cpu_chart->st, cpu_chart->rd_irq, irq);
- rrddim_set_by_pointer(cpu_chart->st, cpu_chart->rd_softirq, softirq);
- rrddim_set_by_pointer(cpu_chart->st, cpu_chart->rd_steal, steal);
- rrddim_set_by_pointer(cpu_chart->st, cpu_chart->rd_guest, guest);
- rrddim_set_by_pointer(cpu_chart->st, cpu_chart->rd_guest_nice, guest_nice);
- rrdset_done(cpu_chart->st);
- }
- }
- else if(unlikely(hash == hash_intr && strcmp(row_key, "intr") == 0)) {
- if(likely(do_interrupts)) {
- static RRDSET *st_intr = NULL;
- static RRDDIM *rd_interrupts = NULL;
- unsigned long long value = str2ull(procfile_lineword(ff, l, 1), NULL);
-
- if(unlikely(!st_intr)) {
- st_intr = rrdset_create_localhost(
- "system"
- , "intr"
- , NULL
- , "interrupts"
- , NULL
- , "CPU Interrupts"
- , "interrupts/s"
- , PLUGIN_PROC_NAME
- , PLUGIN_PROC_MODULE_STAT_NAME
- , NETDATA_CHART_PRIO_SYSTEM_INTR
- , update_every
- , RRDSET_TYPE_LINE
- );
-
- rrdset_flag_set(st_intr, RRDSET_FLAG_DETAIL);
-
- rd_interrupts = rrddim_add(st_intr, "interrupts", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
- }
-
- rrddim_set_by_pointer(st_intr, rd_interrupts, value);
- rrdset_done(st_intr);
- }
- }
- else if(unlikely(hash == hash_ctxt && strcmp(row_key, "ctxt") == 0)) {
- if(likely(do_context)) {
- static RRDSET *st_ctxt = NULL;
- static RRDDIM *rd_switches = NULL;
- unsigned long long value = str2ull(procfile_lineword(ff, l, 1), NULL);
-
- if(unlikely(!st_ctxt)) {
- st_ctxt = rrdset_create_localhost(
- "system"
- , "ctxt"
- , NULL
- , "processes"
- , NULL
- , "CPU Context Switches"
- , "context switches/s"
- , PLUGIN_PROC_NAME
- , PLUGIN_PROC_MODULE_STAT_NAME
- , NETDATA_CHART_PRIO_SYSTEM_CTXT
- , update_every
- , RRDSET_TYPE_LINE
- );
-
- rd_switches = rrddim_add(st_ctxt, "switches", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
- }
-
- rrddim_set_by_pointer(st_ctxt, rd_switches, value);
- rrdset_done(st_ctxt);
- }
- }
- else if(unlikely(hash == hash_processes && !processes && strcmp(row_key, "processes") == 0)) {
- processes = str2ull(procfile_lineword(ff, l, 1), NULL);
- }
- else if(unlikely(hash == hash_procs_running && !running && strcmp(row_key, "procs_running") == 0)) {
- running = str2ull(procfile_lineword(ff, l, 1), NULL);
- }
- else if(unlikely(hash == hash_procs_blocked && !blocked && strcmp(row_key, "procs_blocked") == 0)) {
- blocked = str2ull(procfile_lineword(ff, l, 1), NULL);
- }
- }
-
- // --------------------------------------------------------------------
-
- if(likely(do_forks)) {
- static RRDSET *st_forks = NULL;
- static RRDDIM *rd_started = NULL;
-
- if(unlikely(!st_forks)) {
- st_forks = rrdset_create_localhost(
- "system"
- , "forks"
- , NULL
- , "processes"
- , NULL
- , "Started Processes"
- , "processes/s"
- , PLUGIN_PROC_NAME
- , PLUGIN_PROC_MODULE_STAT_NAME
- , NETDATA_CHART_PRIO_SYSTEM_FORKS
- , update_every
- , RRDSET_TYPE_LINE
- );
- rrdset_flag_set(st_forks, RRDSET_FLAG_DETAIL);
-
- rd_started = rrddim_add(st_forks, "started", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
- }
-
- rrddim_set_by_pointer(st_forks, rd_started, processes);
- rrdset_done(st_forks);
- }
-
- // --------------------------------------------------------------------
-
- if(likely(do_processes)) {
- static RRDSET *st_processes = NULL;
- static RRDDIM *rd_running = NULL;
- static RRDDIM *rd_blocked = NULL;
-
- if(unlikely(!st_processes)) {
- st_processes = rrdset_create_localhost(
- "system"
- , "processes"
- , NULL
- , "processes"
- , NULL
- , "System Processes"
- , "processes"
- , PLUGIN_PROC_NAME
- , PLUGIN_PROC_MODULE_STAT_NAME
- , NETDATA_CHART_PRIO_SYSTEM_PROCESSES
- , update_every
- , RRDSET_TYPE_LINE
- );
-
- rd_running = rrddim_add(st_processes, "running", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
- rd_blocked = rrddim_add(st_processes, "blocked", NULL, -1, 1, RRD_ALGORITHM_ABSOLUTE);
- }
-
- rrddim_set_by_pointer(st_processes, rd_running, running);
- rrddim_set_by_pointer(st_processes, rd_blocked, blocked);
- rrdset_done(st_processes);
- }
-
- if(likely(all_cpu_charts_size > 1)) {
- if(likely(do_core_throttle_count != CONFIG_BOOLEAN_NO)) {
- int r = read_per_core_files(&all_cpu_charts[1], all_cpu_charts_size - 1, CORE_THROTTLE_COUNT_INDEX);
- if(likely(r != -1 && (do_core_throttle_count == CONFIG_BOOLEAN_YES || r > 0))) {
- do_core_throttle_count = CONFIG_BOOLEAN_YES;
-
- static RRDSET *st_core_throttle_count = NULL;
-
- if (unlikely(!st_core_throttle_count)) {
- st_core_throttle_count = rrdset_create_localhost(
- "cpu"
- , "core_throttling"
- , NULL
- , "throttling"
- , "cpu.core_throttling"
- , "Core Thermal Throttling Events"
- , "events/s"
- , PLUGIN_PROC_NAME
- , PLUGIN_PROC_MODULE_STAT_NAME
- , NETDATA_CHART_PRIO_CORE_THROTTLING
- , update_every
- , RRDSET_TYPE_LINE
- );
- }
-
- chart_per_core_files(&all_cpu_charts[1], all_cpu_charts_size - 1, CORE_THROTTLE_COUNT_INDEX, st_core_throttle_count, 1, 1, RRD_ALGORITHM_INCREMENTAL);
- rrdset_done(st_core_throttle_count);
- }
- }
-
- if(likely(do_package_throttle_count != CONFIG_BOOLEAN_NO)) {
- int r = read_per_core_files(&all_cpu_charts[1], all_cpu_charts_size - 1, PACKAGE_THROTTLE_COUNT_INDEX);
- if(likely(r != -1 && (do_package_throttle_count == CONFIG_BOOLEAN_YES || r > 0))) {
- do_package_throttle_count = CONFIG_BOOLEAN_YES;
-
- static RRDSET *st_package_throttle_count = NULL;
-
- if(unlikely(!st_package_throttle_count)) {
- st_package_throttle_count = rrdset_create_localhost(
- "cpu"
- , "package_throttling"
- , NULL
- , "throttling"
- , "cpu.package_throttling"
- , "Package Thermal Throttling Events"
- , "events/s"
- , PLUGIN_PROC_NAME
- , PLUGIN_PROC_MODULE_STAT_NAME
- , NETDATA_CHART_PRIO_PACKAGE_THROTTLING
- , update_every
- , RRDSET_TYPE_LINE
- );
- }
-
- chart_per_core_files(&all_cpu_charts[1], all_cpu_charts_size - 1, PACKAGE_THROTTLE_COUNT_INDEX, st_package_throttle_count, 1, 1, RRD_ALGORITHM_INCREMENTAL);
- rrdset_done(st_package_throttle_count);
- }
- }
-
- if(likely(do_cpu_freq != CONFIG_BOOLEAN_NO)) {
- char filename[FILENAME_MAX + 1];
- int r = 0;
-
- if (accurate_freq_avail) {
- r = read_per_core_time_in_state_files(&all_cpu_charts[1], all_cpu_charts_size - 1, CPU_FREQ_INDEX);
- if(r > 0 && !accurate_freq_is_used) {
- accurate_freq_is_used = 1;
- snprintfz(filename, FILENAME_MAX, time_in_state_filename, "cpu*");
- collector_info("cpufreq is using %s", filename);
- }
- }
- if (r < 1) {
- r = read_per_core_files(&all_cpu_charts[1], all_cpu_charts_size - 1, CPU_FREQ_INDEX);
- if(accurate_freq_is_used) {
- accurate_freq_is_used = 0;
- snprintfz(filename, FILENAME_MAX, scaling_cur_freq_filename, "cpu*");
- collector_info("cpufreq fell back to %s", filename);
- }
- }
-
- if(likely(r != -1 && (do_cpu_freq == CONFIG_BOOLEAN_YES || r > 0))) {
- do_cpu_freq = CONFIG_BOOLEAN_YES;
-
- static RRDSET *st_scaling_cur_freq = NULL;
-
- if(unlikely(!st_scaling_cur_freq)) {
- st_scaling_cur_freq = rrdset_create_localhost(
- "cpu"
- , "cpufreq"
- , NULL
- , "cpufreq"
- , "cpufreq.cpufreq"
- , "Current CPU Frequency"
- , "MHz"
- , PLUGIN_PROC_NAME
- , PLUGIN_PROC_MODULE_STAT_NAME
- , NETDATA_CHART_PRIO_CPUFREQ_SCALING_CUR_FREQ
- , update_every
- , RRDSET_TYPE_LINE
- );
- }
-
- chart_per_core_files(&all_cpu_charts[1], all_cpu_charts_size - 1, CPU_FREQ_INDEX, st_scaling_cur_freq, 1, 1000, RRD_ALGORITHM_ABSOLUTE);
- rrdset_done(st_scaling_cur_freq);
- }
- }
- }
-
- // --------------------------------------------------------------------
-
- static struct per_core_cpuidle_chart *cpuidle_charts = NULL;
- size_t schedstat_cores_found = 0;
-
- if(likely(do_cpuidle != CONFIG_BOOLEAN_NO && !read_schedstat(schedstat_filename, &cpuidle_charts, &schedstat_cores_found))) {
- int cpu_states_updated = 0;
- size_t core, state;
-
-
- // proc.plugin runs on Linux systems only. Multi-platform compatibility is not needed here,
- // so bare pthread functions are used to avoid unneeded overheads.
- for(core = 0; core < schedstat_cores_found; core++) {
- if(unlikely(!(cpuidle_charts[core].active_time - cpuidle_charts[core].last_active_time))) {
- pthread_t thread;
- cpu_set_t global_cpu_set;
-
- if (likely(!pthread_getaffinity_np(pthread_self(), sizeof(cpu_set_t), &global_cpu_set))) {
- if (unlikely(!CPU_ISSET(core, &global_cpu_set))) {
- continue;
- }
- }
- else
- collector_error("Cannot read current process affinity");
-
- // These threads are very ephemeral and don't need to have a specific name
- if(unlikely(pthread_create(&thread, NULL, wake_cpu_thread, (void *)&core)))
- collector_error("Cannot create wake_cpu_thread");
- else if(unlikely(pthread_join(thread, NULL)))
- collector_error("Cannot join wake_cpu_thread");
- cpu_states_updated = 1;
- }
- }
-
- if(unlikely(!cpu_states_updated || !read_schedstat(schedstat_filename, &cpuidle_charts, &schedstat_cores_found))) {
- for(core = 0; core < schedstat_cores_found; core++) {
- cpuidle_charts[core].last_active_time = cpuidle_charts[core].active_time;
-
- int r = read_cpuidle_states(cpuidle_name_filename, cpuidle_time_filename, cpuidle_charts, core);
- if(likely(r != -1 && (do_cpuidle == CONFIG_BOOLEAN_YES || r > 0))) {
- do_cpuidle = CONFIG_BOOLEAN_YES;
-
- char cpuidle_chart_id[RRD_ID_LENGTH_MAX + 1];
- snprintfz(cpuidle_chart_id, RRD_ID_LENGTH_MAX, "cpu%zu_cpuidle", core);
-
- if(unlikely(!cpuidle_charts[core].st)) {
- cpuidle_charts[core].st = rrdset_create_localhost(
- "cpu"
- , cpuidle_chart_id
- , NULL
- , "cpuidle"
- , "cpuidle.cpu_cstate_residency_time"
- , "C-state residency time"
- , "percentage"
- , PLUGIN_PROC_NAME
- , PLUGIN_PROC_MODULE_STAT_NAME
- , NETDATA_CHART_PRIO_CPUIDLE + core
- , update_every
- , RRDSET_TYPE_STACKED
- );
-
- char corebuf[50+1];
- snprintfz(corebuf, sizeof(corebuf) - 1, "cpu%zu", core);
- rrdlabels_add(cpuidle_charts[core].st->rrdlabels, "cpu", corebuf, RRDLABEL_SRC_AUTO);
-
- char cpuidle_dim_id[RRD_ID_LENGTH_MAX + 1];
- cpuidle_charts[core].active_time_rd = rrddim_add(cpuidle_charts[core].st, "active", "C0 (active)", 1, 1, RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL);
- for(state = 0; state < cpuidle_charts[core].cpuidle_state_len; state++) {
- strncpyz(cpuidle_dim_id, cpuidle_charts[core].cpuidle_state[state].name, RRD_ID_LENGTH_MAX);
- for(int i = 0; cpuidle_dim_id[i]; i++)
- cpuidle_dim_id[i] = tolower(cpuidle_dim_id[i]);
- cpuidle_charts[core].cpuidle_state[state].rd = rrddim_add(cpuidle_charts[core].st, cpuidle_dim_id,
- cpuidle_charts[core].cpuidle_state[state].name,
- 1, 1, RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL);
- }
- }
-
- rrddim_set_by_pointer(cpuidle_charts[core].st, cpuidle_charts[core].active_time_rd, cpuidle_charts[core].active_time);
- for(state = 0; state < cpuidle_charts[core].cpuidle_state_len; state++) {
- rrddim_set_by_pointer(cpuidle_charts[core].st, cpuidle_charts[core].cpuidle_state[state].rd, cpuidle_charts[core].cpuidle_state[state].value);
- }
- rrdset_done(cpuidle_charts[core].st);
- }
- }
- }
- }
-
- if(cpus_var)
- rrdvar_custom_host_variable_set(localhost, cpus_var, cores_found);
-
- return 0;
-}