diff options
Diffstat (limited to 'collectors/proc.plugin/plugin_proc.c')
| -rw-r--r-- | collectors/proc.plugin/plugin_proc.c | 230 |
1 files changed, 230 insertions, 0 deletions
diff --git a/collectors/proc.plugin/plugin_proc.c b/collectors/proc.plugin/plugin_proc.c new file mode 100644 index 0000000..19230c0 --- /dev/null +++ b/collectors/proc.plugin/plugin_proc.c @@ -0,0 +1,230 @@ +// 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 }, + + // pressure metrics + { .name = "/proc/pressure", .dim = "pressure", .func = do_proc_pressure }, + + // 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/block/zram", .dim = "zram", .func = do_sys_block_zram }, + { .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 }, + { .name = "/proc/pagetypeinfo", .dim = "pagetypeinfo", .func = do_proc_pagetypeinfo }, + + // network metrics + { .name = "/proc/net/dev", .dim = "netdev", .func = do_proc_net_dev }, + { .name = "/proc/net/wireless", .dim = "netwireless", .func = do_proc_net_wireless }, + { .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 }, + { .name = "/sys/class/infiniband", .dim = "infiniband", .func = do_sys_class_infiniband }, + + // 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 }, + + // linux power supply metrics + { .name = "/sys/class/power_supply", .dim = "power_supply", .func = do_sys_class_power_supply }, + + // 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", CONFIG_BOOLEAN_YES); + + config_get_boolean("plugin:proc", "/proc/pagetypeinfo", CONFIG_BOOLEAN_NO); + + // 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, CONFIG_BOOLEAN_YES); + 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_active_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; +} |