diff options
Diffstat (limited to 'collectors/proc.plugin/proc_stat.c')
| -rw-r--r-- | collectors/proc.plugin/proc_stat.c | 1070 |
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; -} |