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- // SPDX-License-Identifier: GPL-3.0-or-later
- #include "plugin_proc.h"
- static struct proc_module {
- const char *name;
- const char *dim;
- int enabled;
- int (*func)(int update_every, usec_t dt);
- usec_t duration;
- RRDDIM *rd;
- } proc_modules[] = {
- // system metrics
- { .name = "/proc/stat", .dim = "stat", .func = do_proc_stat },
- { .name = "/proc/uptime", .dim = "uptime", .func = do_proc_uptime },
- { .name = "/proc/loadavg", .dim = "loadavg", .func = do_proc_loadavg },
- { .name = "/proc/sys/kernel/random/entropy_avail", .dim = "entropy", .func = do_proc_sys_kernel_random_entropy_avail },
- // CPU metrics
- { .name = "/proc/interrupts", .dim = "interrupts", .func = do_proc_interrupts },
- { .name = "/proc/softirqs", .dim = "softirqs", .func = do_proc_softirqs },
- // memory metrics
- { .name = "/proc/vmstat", .dim = "vmstat", .func = do_proc_vmstat },
- { .name = "/proc/meminfo", .dim = "meminfo", .func = do_proc_meminfo },
- { .name = "/sys/kernel/mm/ksm", .dim = "ksm", .func = do_sys_kernel_mm_ksm },
- { .name = "/sys/devices/system/edac/mc", .dim = "ecc", .func = do_proc_sys_devices_system_edac_mc },
- { .name = "/sys/devices/system/node", .dim = "numa", .func = do_proc_sys_devices_system_node },
- // network metrics
- { .name = "/proc/net/dev", .dim = "netdev", .func = do_proc_net_dev },
- { .name = "/proc/net/sockstat", .dim = "sockstat", .func = do_proc_net_sockstat },
- { .name = "/proc/net/sockstat6", .dim = "sockstat6", .func = do_proc_net_sockstat6 },
- { .name = "/proc/net/netstat", .dim = "netstat", .func = do_proc_net_netstat }, // this has to be before /proc/net/snmp, because there is a shared metric
- { .name = "/proc/net/snmp", .dim = "snmp", .func = do_proc_net_snmp },
- { .name = "/proc/net/snmp6", .dim = "snmp6", .func = do_proc_net_snmp6 },
- { .name = "/proc/net/sctp/snmp", .dim = "sctp", .func = do_proc_net_sctp_snmp },
- { .name = "/proc/net/softnet_stat", .dim = "softnet", .func = do_proc_net_softnet_stat },
- { .name = "/proc/net/ip_vs/stats", .dim = "ipvs", .func = do_proc_net_ip_vs_stats },
- // firewall metrics
- { .name = "/proc/net/stat/conntrack", .dim = "conntrack", .func = do_proc_net_stat_conntrack },
- { .name = "/proc/net/stat/synproxy", .dim = "synproxy", .func = do_proc_net_stat_synproxy },
- // disk metrics
- { .name = "/proc/diskstats", .dim = "diskstats", .func = do_proc_diskstats },
- { .name = "/proc/mdstat", .dim = "mdstat", .func = do_proc_mdstat },
- // NFS metrics
- { .name = "/proc/net/rpc/nfsd", .dim = "nfsd", .func = do_proc_net_rpc_nfsd },
- { .name = "/proc/net/rpc/nfs", .dim = "nfs", .func = do_proc_net_rpc_nfs },
- // ZFS metrics
- { .name = "/proc/spl/kstat/zfs/arcstats", .dim = "zfs_arcstats", .func = do_proc_spl_kstat_zfs_arcstats },
- // BTRFS metrics
- { .name = "/sys/fs/btrfs", .dim = "btrfs", .func = do_sys_fs_btrfs },
- // IPC metrics
- { .name = "ipc", .dim = "ipc", .func = do_ipc },
- // the terminator of this array
- { .name = NULL, .dim = NULL, .func = NULL }
- };
- static void proc_main_cleanup(void *ptr) {
- struct netdata_static_thread *static_thread = (struct netdata_static_thread *)ptr;
- static_thread->enabled = NETDATA_MAIN_THREAD_EXITING;
- info("cleaning up...");
- static_thread->enabled = NETDATA_MAIN_THREAD_EXITED;
- }
- void *proc_main(void *ptr) {
- netdata_thread_cleanup_push(proc_main_cleanup, ptr);
- int vdo_cpu_netdata = config_get_boolean("plugin:proc", "netdata server resources", 1);
- // check the enabled status for each module
- int i;
- for(i = 0 ; proc_modules[i].name ;i++) {
- struct proc_module *pm = &proc_modules[i];
- pm->enabled = config_get_boolean("plugin:proc", pm->name, 1);
- pm->duration = 0ULL;
- pm->rd = NULL;
- }
- usec_t step = localhost->rrd_update_every * USEC_PER_SEC;
- heartbeat_t hb;
- heartbeat_init(&hb);
- size_t iterations = 0;
- while(!netdata_exit) {
- iterations++;
- (void)iterations;
- usec_t hb_dt = heartbeat_next(&hb, step);
- usec_t duration = 0ULL;
- if(unlikely(netdata_exit)) break;
- // BEGIN -- the job to be done
- for(i = 0 ; proc_modules[i].name ;i++) {
- struct proc_module *pm = &proc_modules[i];
- if(unlikely(!pm->enabled)) continue;
- debug(D_PROCNETDEV_LOOP, "PROC calling %s.", pm->name);
- //#ifdef NETDATA_LOG_ALLOCATIONS
- // if(pm->func == do_proc_interrupts)
- // log_thread_memory_allocations = iterations;
- //#endif
- pm->enabled = !pm->func(localhost->rrd_update_every, hb_dt);
- pm->duration = heartbeat_monotonic_dt_to_now_usec(&hb) - duration;
- duration += pm->duration;
- //#ifdef NETDATA_LOG_ALLOCATIONS
- // if(pm->func == do_proc_interrupts)
- // log_thread_memory_allocations = 0;
- //#endif
- if(unlikely(netdata_exit)) break;
- }
- // END -- the job is done
- // --------------------------------------------------------------------
- if(vdo_cpu_netdata) {
- static RRDSET *st = NULL;
- if(unlikely(!st)) {
- st = rrdset_find_bytype_localhost("netdata", "plugin_proc_modules");
- if(!st) {
- st = rrdset_create_localhost(
- "netdata"
- , "plugin_proc_modules"
- , NULL
- , "proc"
- , NULL
- , "NetData Proc Plugin Modules Durations"
- , "milliseconds/run"
- , "netdata"
- , "stats"
- , 132001
- , localhost->rrd_update_every
- , RRDSET_TYPE_STACKED
- );
- for(i = 0 ; proc_modules[i].name ;i++) {
- struct proc_module *pm = &proc_modules[i];
- if(unlikely(!pm->enabled)) continue;
- pm->rd = rrddim_add(st, pm->dim, NULL, 1, 1000, RRD_ALGORITHM_ABSOLUTE);
- }
- }
- }
- else rrdset_next(st);
- for(i = 0 ; proc_modules[i].name ;i++) {
- struct proc_module *pm = &proc_modules[i];
- if(unlikely(!pm->enabled)) continue;
- rrddim_set_by_pointer(st, pm->rd, pm->duration);
- }
- rrdset_done(st);
- global_statistics_charts();
- registry_statistics();
- }
- }
- netdata_thread_cleanup_pop(1);
- return NULL;
- }
- int get_numa_node_count(void)
- {
- static int numa_node_count = -1;
- if (numa_node_count != -1)
- return numa_node_count;
- numa_node_count = 0;
- char name[FILENAME_MAX + 1];
- snprintfz(name, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/sys/devices/system/node");
- char *dirname = config_get("plugin:proc:/sys/devices/system/node", "directory to monitor", name);
- DIR *dir = opendir(dirname);
- if(dir) {
- struct dirent *de = NULL;
- while((de = readdir(dir))) {
- if(de->d_type != DT_DIR)
- continue;
- if(strncmp(de->d_name, "node", 4) != 0)
- continue;
- if(!isdigit(de->d_name[4]))
- continue;
- numa_node_count++;
- }
- closedir(dir);
- }
- return numa_node_count;
- }
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