src/plugin_proc.c

   1 #ifdef HAVE_CONFIG_H
   2 #include <config.h>
   3 #endif
   4 #include <pthread.h>
   5 #include <sys/time.h>
   6 #include <sys/resource.h>
   7 #include <strings.h>
   8 #include <unistd.h>
   9
  10 #include "global_statistics.h"
  11 #include "common.h"
  12 #include "appconfig.h"
  13 #include "log.h"
  14 #include "rrd.h"
  15 #include "plugin_proc.h"
  16 #include "main.h"
  17
  18 unsigned long long sutime() {
  19         struct timeval now;
  20         gettimeofday(&now, NULL);
  21         return now.tv_sec * 1000000ULL + now.tv_usec;
  22 }
  23
  24 void *proc_main(void *ptr)
  25 {
  26         if(ptr) { ; }
  27
  28         info("PROC Plugin thread created with task id %d", gettid());
  29
  30         if(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) != 0)
  31                 error("Cannot set pthread cancel type to DEFERRED.");
  32
  33         if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0)
  34                 error("Cannot set pthread cancel state to ENABLE.");
  35
  36         struct rusage me, thread;
  37
  38         // disable (by default) various interface that are not needed
  39         config_get_boolean("plugin:proc:/proc/net/dev:lo", "enabled", 0);
  40         config_get_boolean("plugin:proc:/proc/net/dev:fireqos_monitor", "enabled", 0);
  41
  42         // when ZERO, attempt to do it
  43         int vdo_proc_net_dev                    = !config_get_boolean("plugin:proc", "/proc/net/dev", 1);
  44         int vdo_proc_diskstats                  = !config_get_boolean("plugin:proc", "/proc/diskstats", 1);
  45         int vdo_proc_net_snmp                   = !config_get_boolean("plugin:proc", "/proc/net/snmp", 1);
  46         int vdo_proc_net_netstat                = !config_get_boolean("plugin:proc", "/proc/net/netstat", 1);
  47         int vdo_proc_net_stat_conntrack = !config_get_boolean("plugin:proc", "/proc/net/stat/conntrack", 1);
  48         int vdo_proc_net_ip_vs_stats    = !config_get_boolean("plugin:proc", "/proc/net/ip_vs/stats", 1);
  49         int vdo_proc_stat                               = !config_get_boolean("plugin:proc", "/proc/stat", 1);
  50         int vdo_proc_meminfo                    = !config_get_boolean("plugin:proc", "/proc/meminfo", 1);
  51         int vdo_proc_vmstat                     = !config_get_boolean("plugin:proc", "/proc/vmstat", 1);
  52         int vdo_proc_net_rpc_nfsd               = !config_get_boolean("plugin:proc", "/proc/net/rpc/nfsd", 1);
  53         int vdo_proc_sys_kernel_random_entropy_avail    = !config_get_boolean("plugin:proc", "/proc/sys/kernel/random/entropy_avail", 1);
  54         int vdo_proc_interrupts                 = !config_get_boolean("plugin:proc", "/proc/interrupts", 1);
  55         int vdo_proc_softirqs                   = !config_get_boolean("plugin:proc", "/proc/softirqs", 1);
  56         int vdo_proc_loadavg                    = !config_get_boolean("plugin:proc", "/proc/loadavg", 1);
  57         int vdo_sys_kernel_mm_ksm               = !config_get_boolean("plugin:proc", "/sys/kernel/mm/ksm", 1);
  58         int vdo_cpu_netdata                     = !config_get_boolean("plugin:proc", "netdata server resources", 1);
  59
  60         // keep track of the time each module was called
  61         unsigned long long sutime_proc_net_dev = 0ULL;
  62         unsigned long long sutime_proc_diskstats = 0ULL;
  63         unsigned long long sutime_proc_net_snmp = 0ULL;
  64         unsigned long long sutime_proc_net_netstat = 0ULL;
  65         unsigned long long sutime_proc_net_stat_conntrack = 0ULL;
  66         unsigned long long sutime_proc_net_ip_vs_stats = 0ULL;
  67         unsigned long long sutime_proc_stat = 0ULL;
  68         unsigned long long sutime_proc_meminfo = 0ULL;
  69         unsigned long long sutime_proc_vmstat = 0ULL;
  70         unsigned long long sutime_proc_net_rpc_nfsd = 0ULL;
  71         unsigned long long sutime_proc_sys_kernel_random_entropy_avail = 0ULL;
  72         unsigned long long sutime_proc_interrupts = 0ULL;
  73         unsigned long long sutime_proc_softirqs = 0ULL;
  74         unsigned long long sutime_proc_loadavg = 0ULL;
  75         unsigned long long sutime_sys_kernel_mm_ksm = 0ULL;
  76
  77         // the next time we will run - aligned properly
  78         unsigned long long sunext = (time(NULL) - (time(NULL) % rrd_update_every) + rrd_update_every) * 1000000ULL;
  79         unsigned long long sunow;
  80
  81         RRDSET *stcpu = NULL, *stcpu_thread = NULL, *stclients = NULL, *streqs = NULL, *stbytes = NULL;
  82
  83         for(;1;) {
  84                 if(unlikely(netdata_exit)) break;
  85
  86                 // delay until it is our time to run
  87                 while((sunow = sutime()) < sunext)
  88                         usleep((useconds_t)(sunext - sunow));
  89
  90                 // find the next time we need to run
  91                 while(sutime() > sunext)
  92                         sunext += rrd_update_every * 1000000ULL;
  93
  94                 if(unlikely(netdata_exit)) break;
  95
  96                 // BEGIN -- the job to be done
  97
  98                 if(!vdo_sys_kernel_mm_ksm) {
  99                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_sys_kernel_mm_ksm().");
 100
 101                         sunow = sutime();
 102                         vdo_sys_kernel_mm_ksm = do_sys_kernel_mm_ksm(rrd_update_every, (sutime_sys_kernel_mm_ksm > 0)?sunow - sutime_sys_kernel_mm_ksm:0ULL);
 103                         sutime_sys_kernel_mm_ksm = sunow;
 104                 }
 105                 if(unlikely(netdata_exit)) break;
 106
 107                 if(!vdo_proc_loadavg) {
 108                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_loadavg().");
 109                         sunow = sutime();
 110                         vdo_proc_loadavg = do_proc_loadavg(rrd_update_every, (sutime_proc_loadavg > 0)?sunow - sutime_proc_loadavg:0ULL);
 111                         sutime_proc_loadavg = sunow;
 112                 }
 113                 if(unlikely(netdata_exit)) break;
 114
 115                 if(!vdo_proc_interrupts) {
 116                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_interrupts().");
 117                         sunow = sutime();
 118                         vdo_proc_interrupts = do_proc_interrupts(rrd_update_every, (sutime_proc_interrupts > 0)?sunow - sutime_proc_interrupts:0ULL);
 119                         sutime_proc_interrupts = sunow;
 120                 }
 121                 if(unlikely(netdata_exit)) break;
 122
 123                 if(!vdo_proc_softirqs) {
 124                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_softirqs().");
 125                         sunow = sutime();
 126                         vdo_proc_softirqs = do_proc_softirqs(rrd_update_every, (sutime_proc_softirqs > 0)?sunow - sutime_proc_softirqs:0ULL);
 127                         sutime_proc_softirqs = sunow;
 128                 }
 129                 if(unlikely(netdata_exit)) break;
 130
 131                 if(!vdo_proc_sys_kernel_random_entropy_avail) {
 132                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_sys_kernel_random_entropy_avail().");
 133                         sunow = sutime();
 134                         vdo_proc_sys_kernel_random_entropy_avail = do_proc_sys_kernel_random_entropy_avail(rrd_update_every, (sutime_proc_sys_kernel_random_entropy_avail > 0)?sunow - sutime_proc_sys_kernel_random_entropy_avail:0ULL);
 135                         sutime_proc_sys_kernel_random_entropy_avail = sunow;
 136                 }
 137                 if(unlikely(netdata_exit)) break;
 138
 139                 if(!vdo_proc_net_dev) {
 140                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_net_dev().");
 141                         sunow = sutime();
 142                         vdo_proc_net_dev = do_proc_net_dev(rrd_update_every, (sutime_proc_net_dev > 0)?sunow - sutime_proc_net_dev:0ULL);
 143                         sutime_proc_net_dev = sunow;
 144                 }
 145                 if(unlikely(netdata_exit)) break;
 146
 147                 if(!vdo_proc_diskstats) {
 148                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_diskstats().");
 149                         sunow = sutime();
 150                         vdo_proc_diskstats = do_proc_diskstats(rrd_update_every, (sutime_proc_diskstats > 0)?sunow - sutime_proc_diskstats:0ULL);
 151                         sutime_proc_diskstats = sunow;
 152                 }
 153                 if(unlikely(netdata_exit)) break;
 154
 155                 if(!vdo_proc_net_snmp) {
 156                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_net_snmp().");
 157                         sunow = sutime();
 158                         vdo_proc_net_snmp = do_proc_net_snmp(rrd_update_every, (sutime_proc_net_snmp > 0)?sunow - sutime_proc_net_snmp:0ULL);
 159                         sutime_proc_net_snmp = sunow;
 160                 }
 161                 if(unlikely(netdata_exit)) break;
 162
 163                 if(!vdo_proc_net_netstat) {
 164                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_net_netstat().");
 165                         sunow = sutime();
 166                         vdo_proc_net_netstat = do_proc_net_netstat(rrd_update_every, (sutime_proc_net_netstat > 0)?sunow - sutime_proc_net_netstat:0ULL);
 167                         sutime_proc_net_netstat = sunow;
 168                 }
 169                 if(unlikely(netdata_exit)) break;
 170
 171                 if(!vdo_proc_net_stat_conntrack) {
 172                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_net_stat_conntrack().");
 173                         sunow = sutime();
 174                         vdo_proc_net_stat_conntrack     = do_proc_net_stat_conntrack(rrd_update_every, (sutime_proc_net_stat_conntrack > 0)?sunow - sutime_proc_net_stat_conntrack:0ULL);
 175                         sutime_proc_net_stat_conntrack = sunow;
 176                 }
 177                 if(unlikely(netdata_exit)) break;
 178
 179                 if(!vdo_proc_net_ip_vs_stats) {
 180                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling vdo_proc_net_ip_vs_stats().");
 181                         sunow = sutime();
 182                         vdo_proc_net_ip_vs_stats = do_proc_net_ip_vs_stats(rrd_update_every, (sutime_proc_net_ip_vs_stats > 0)?sunow - sutime_proc_net_ip_vs_stats:0ULL);
 183                         sutime_proc_net_ip_vs_stats = sunow;
 184                 }
 185                 if(unlikely(netdata_exit)) break;
 186
 187                 if(!vdo_proc_stat) {
 188                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_stat().");
 189                         sunow = sutime();
 190                         vdo_proc_stat = do_proc_stat(rrd_update_every, (sutime_proc_stat > 0)?sunow - sutime_proc_stat:0ULL);
 191                         sutime_proc_stat = sunow;
 192                 }
 193                 if(unlikely(netdata_exit)) break;
 194
 195                 if(!vdo_proc_meminfo) {
 196                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling vdo_proc_meminfo().");
 197                         sunow = sutime();
 198                         vdo_proc_meminfo = do_proc_meminfo(rrd_update_every, (sutime_proc_meminfo > 0)?sunow - sutime_proc_meminfo:0ULL);
 199                         sutime_proc_meminfo = sunow;
 200                 }
 201                 if(unlikely(netdata_exit)) break;
 202
 203                 if(!vdo_proc_vmstat) {
 204                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling vdo_proc_vmstat().");
 205                         sunow = sutime();
 206                         vdo_proc_vmstat = do_proc_vmstat(rrd_update_every, (sutime_proc_vmstat > 0)?sunow - sutime_proc_vmstat:0ULL);
 207                         sutime_proc_vmstat = sunow;
 208                 }
 209                 if(unlikely(netdata_exit)) break;
 210
 211                 if(!vdo_proc_net_rpc_nfsd) {
 212                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_net_rpc_nfsd().");
 213                         sunow = sutime();
 214                         vdo_proc_net_rpc_nfsd = do_proc_net_rpc_nfsd(rrd_update_every, (sutime_proc_net_rpc_nfsd > 0)?sunow - sutime_proc_net_rpc_nfsd:0ULL);
 215                         sutime_proc_net_rpc_nfsd = sunow;
 216                 }
 217                 if(unlikely(netdata_exit)) break;
 218
 219                 // END -- the job is done
 220
 221                 // --------------------------------------------------------------------
 222
 223                 if(!vdo_cpu_netdata) {
 224                         getrusage(RUSAGE_THREAD, &thread);
 225                         getrusage(RUSAGE_SELF, &me);
 226
 227                         if(!stcpu_thread) stcpu_thread = rrdset_find("netdata.plugin_proc_cpu");
 228                         if(!stcpu_thread) {
 229                                 stcpu_thread = rrdset_create("netdata", "plugin_proc_cpu", NULL, "proc.internal", NULL, "NetData Proc Plugin CPU usage", "milliseconds/s", 131000, rrd_update_every, RRDSET_TYPE_STACKED);
 230
 231                                 rrddim_add(stcpu_thread, "user",  NULL,  1, 1000, RRDDIM_INCREMENTAL);
 232                                 rrddim_add(stcpu_thread, "system", NULL, 1, 1000, RRDDIM_INCREMENTAL);
 233                         }
 234                         else rrdset_next(stcpu_thread);
 235
 236                         rrddim_set(stcpu_thread, "user"  , thread.ru_utime.tv_sec * 1000000ULL + thread.ru_utime.tv_usec);
 237                         rrddim_set(stcpu_thread, "system", thread.ru_stime.tv_sec * 1000000ULL + thread.ru_stime.tv_usec);
 238                         rrdset_done(stcpu_thread);
 239
 240                         // ----------------------------------------------------------------
 241
 242                         if(!stcpu) stcpu = rrdset_find("netdata.server_cpu");
 243                         if(!stcpu) {
 244                                 stcpu = rrdset_create("netdata", "server_cpu", NULL, "netdata", NULL, "NetData CPU usage", "milliseconds/s", 130000, rrd_update_every, RRDSET_TYPE_STACKED);
 245
 246                                 rrddim_add(stcpu, "user",  NULL,  1, 1000, RRDDIM_INCREMENTAL);
 247                                 rrddim_add(stcpu, "system", NULL, 1, 1000, RRDDIM_INCREMENTAL);
 248                         }
 249                         else rrdset_next(stcpu);
 250
 251                         rrddim_set(stcpu, "user"  , me.ru_utime.tv_sec * 1000000ULL + me.ru_utime.tv_usec);
 252                         rrddim_set(stcpu, "system", me.ru_stime.tv_sec * 1000000ULL + me.ru_stime.tv_usec);
 253                         rrdset_done(stcpu);
 254
 255                         // ----------------------------------------------------------------
 256
 257                         if(!stclients) stclients = rrdset_find("netdata.clients");
 258                         if(!stclients) {
 259                                 stclients = rrdset_create("netdata", "clients", NULL, "netdata", NULL, "NetData Web Clients", "connected clients", 131000, rrd_update_every, RRDSET_TYPE_LINE);
 260
 261                                 rrddim_add(stclients, "clients",  NULL,  1, 1, RRDDIM_ABSOLUTE);
 262                         }
 263                         else rrdset_next(stclients);
 264
 265                         rrddim_set(stclients, "clients", global_statistics.connected_clients);
 266                         rrdset_done(stclients);
 267
 268                         // ----------------------------------------------------------------
 269
 270                         if(!streqs) streqs = rrdset_find("netdata.requests");
 271                         if(!streqs) {
 272                                 streqs = rrdset_create("netdata", "requests", NULL, "netdata", NULL, "NetData Web Requests", "requests/s", 131100, rrd_update_every, RRDSET_TYPE_LINE);
 273
 274                                 rrddim_add(streqs, "requests",  NULL,  1, 1, RRDDIM_INCREMENTAL);
 275                         }
 276                         else rrdset_next(streqs);
 277
 278                         rrddim_set(streqs, "requests", global_statistics.web_requests);
 279                         rrdset_done(streqs);
 280
 281                         // ----------------------------------------------------------------
 282
 283                         if(!stbytes) stbytes = rrdset_find("netdata.net");
 284                         if(!stbytes) {
 285                                 stbytes = rrdset_create("netdata", "net", NULL, "netdata", NULL, "NetData Network Traffic", "kilobits/s", 131200, rrd_update_every, RRDSET_TYPE_AREA);
 286
 287                                 rrddim_add(stbytes, "in",  NULL,  8, 1024, RRDDIM_INCREMENTAL);
 288                                 rrddim_add(stbytes, "out",  NULL,  -8, 1024, RRDDIM_INCREMENTAL);
 289                         }
 290                         else rrdset_next(stbytes);
 291
 292                         rrddim_set(stbytes, "in", global_statistics.bytes_received);
 293                         rrddim_set(stbytes, "out", global_statistics.bytes_sent);
 294                         rrdset_done(stbytes);
 295                 }
 296         }
 297
 298         pthread_exit(NULL);
 299         return NULL;
 300 }