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
  17 void *proc_main(void *ptr)
  18 {
  19         if(ptr) { ; }
  20
  21         info("PROC Plugin thread created with task id %d", gettid());
  22
  23         if(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) != 0)
  24                 error("Cannot set pthread cancel type to DEFERRED.");
  25
  26         if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0)
  27                 error("Cannot set pthread cancel state to ENABLE.");
  28
  29         struct rusage me, thread;
  30         struct timeval last, now;
  31
  32         gettimeofday(&last, NULL);
  33         last.tv_sec -= rrd_update_every;
  34
  35         // disable (by default) various interface that are not needed
  36         config_get_boolean("plugin:proc:/proc/net/dev", "interface lo", 0);
  37         config_get_boolean("plugin:proc:/proc/net/dev", "interface fireqos_monitor", 0);
  38
  39         // when ZERO, attempt to do it
  40         int vdo_proc_net_dev                    = !config_get_boolean("plugin:proc", "/proc/net/dev", 1);
  41         int vdo_proc_diskstats                  = !config_get_boolean("plugin:proc", "/proc/diskstats", 1);
  42         int vdo_proc_net_snmp                   = !config_get_boolean("plugin:proc", "/proc/net/snmp", 1);
  43         int vdo_proc_net_netstat                = !config_get_boolean("plugin:proc", "/proc/net/netstat", 1);
  44         int vdo_proc_net_stat_conntrack = !config_get_boolean("plugin:proc", "/proc/net/stat/conntrack", 1);
  45         int vdo_proc_net_ip_vs_stats    = !config_get_boolean("plugin:proc", "/proc/net/ip_vs/stats", 1);
  46         int vdo_proc_stat                               = !config_get_boolean("plugin:proc", "/proc/stat", 1);
  47         int vdo_proc_meminfo                    = !config_get_boolean("plugin:proc", "/proc/meminfo", 1);
  48         int vdo_proc_vmstat                     = !config_get_boolean("plugin:proc", "/proc/vmstat", 1);
  49         int vdo_proc_net_rpc_nfsd               = !config_get_boolean("plugin:proc", "/proc/net/rpc/nfsd", 1);
  50         int vdo_proc_sys_kernel_random_entropy_avail    = !config_get_boolean("plugin:proc", "/proc/sys/kernel/random/entropy_avail", 1);
  51         int vdo_proc_interrupts                 = !config_get_boolean("plugin:proc", "/proc/interrupts", 1);
  52         int vdo_proc_softirqs                   = !config_get_boolean("plugin:proc", "/proc/softirqs", 1);
  53         int vdo_sys_kernel_mm_ksm               = !config_get_boolean("plugin:proc", "/sys/kernel/mm/ksm", 1);
  54         int vdo_cpu_netdata                     = !config_get_boolean("plugin:proc", "netdata server resources", 1);
  55
  56         RRDSET *stcpu = NULL, *stcpu_thread = NULL, *stclients = NULL, *streqs = NULL, *stbytes = NULL;
  57
  58         gettimeofday(&last, NULL);
  59
  60         unsigned long long usec = 0, susec = 0;
  61         for(;1;) {
  62
  63                 // BEGIN -- the job to be done
  64
  65                 if(!vdo_sys_kernel_mm_ksm) {
  66                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_sys_kernel_mm_ksm().");
  67                         vdo_sys_kernel_mm_ksm = do_sys_kernel_mm_ksm(rrd_update_every, usec+susec);
  68                 }
  69
  70                 if(!vdo_proc_interrupts) {
  71                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_interrupts().");
  72                         vdo_proc_interrupts = do_proc_interrupts(rrd_update_every, usec+susec);
  73                 }
  74                 if(!vdo_proc_softirqs) {
  75                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_softirqs().");
  76                         vdo_proc_softirqs = do_proc_softirqs(rrd_update_every, usec+susec);
  77                 }
  78                 if(!vdo_proc_sys_kernel_random_entropy_avail) {
  79                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_sys_kernel_random_entropy_avail().");
  80                         vdo_proc_sys_kernel_random_entropy_avail = do_proc_sys_kernel_random_entropy_avail(rrd_update_every, usec+susec);
  81                 }
  82                 if(!vdo_proc_net_dev) {
  83                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_net_dev().");
  84                         vdo_proc_net_dev = do_proc_net_dev(rrd_update_every, usec+susec);
  85                 }
  86                 if(!vdo_proc_diskstats) {
  87                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_diskstats().");
  88                         vdo_proc_diskstats = do_proc_diskstats(rrd_update_every, usec+susec);
  89                 }
  90                 if(!vdo_proc_net_snmp) {
  91                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_net_snmp().");
  92                         vdo_proc_net_snmp = do_proc_net_snmp(rrd_update_every, usec+susec);
  93                 }
  94
  95                 if(!vdo_proc_net_netstat) {
  96                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_net_netstat().");
  97                         vdo_proc_net_netstat = do_proc_net_netstat(rrd_update_every, usec+susec);
  98                 }
  99
 100                 if(!vdo_proc_net_stat_conntrack) {
 101                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_net_stat_conntrack().");
 102                         vdo_proc_net_stat_conntrack     = do_proc_net_stat_conntrack(rrd_update_every, usec+susec);
 103                 }
 104
 105                 if(!vdo_proc_net_ip_vs_stats) {
 106                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling vdo_proc_net_ip_vs_stats().");
 107                         vdo_proc_net_ip_vs_stats = do_proc_net_ip_vs_stats(rrd_update_every, usec+susec);
 108                 }
 109
 110                 if(!vdo_proc_stat) {
 111                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_stat().");
 112                         vdo_proc_stat = do_proc_stat(rrd_update_every, usec+susec);
 113                 }
 114
 115                 if(!vdo_proc_meminfo) {
 116                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling vdo_proc_meminfo().");
 117                         vdo_proc_meminfo = do_proc_meminfo(rrd_update_every, usec+susec);
 118                 }
 119
 120                 if(!vdo_proc_vmstat) {
 121                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling vdo_proc_vmstat().");
 122                         vdo_proc_vmstat = do_proc_vmstat(rrd_update_every, usec+susec);
 123                 }
 124
 125                 if(!vdo_proc_net_rpc_nfsd) {
 126                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_net_rpc_nfsd().");
 127                         vdo_proc_net_rpc_nfsd = do_proc_net_rpc_nfsd(rrd_update_every, usec+susec);
 128                 }
 129
 130                 // END -- the job is done
 131
 132                 // find the time to sleep in order to wait exactly update_every seconds
 133                 gettimeofday(&now, NULL);
 134                 usec = usecdiff(&now, &last) - susec;
 135                 debug(D_PROCNETDEV_LOOP, "PROCNETDEV: last loop took %llu usec (worked for %llu, sleeped for %llu).", usec + susec, usec, susec);
 136
 137                 if(usec < (rrd_update_every * 1000000ULL / 2ULL)) susec = (rrd_update_every * 1000000ULL) - usec;
 138                 else susec = rrd_update_every * 1000000ULL / 2ULL;
 139
 140                 // --------------------------------------------------------------------
 141
 142                 if(!vdo_cpu_netdata) {
 143                         getrusage(RUSAGE_THREAD, &thread);
 144                         getrusage(RUSAGE_SELF, &me);
 145
 146                         if(!stcpu_thread) stcpu_thread = rrdset_find("netdata.plugin_proc_cpu");
 147                         if(!stcpu_thread) {
 148                                 stcpu_thread = rrdset_create("netdata", "plugin_proc_cpu", NULL, "netdata", "NetData Proc Plugin CPU usage", "milliseconds/s", 9999, rrd_update_every, RRDSET_TYPE_STACKED);
 149
 150                                 rrddim_add(stcpu_thread, "user",  NULL,  1, 1000, RRDDIM_INCREMENTAL);
 151                                 rrddim_add(stcpu_thread, "system", NULL, 1, 1000, RRDDIM_INCREMENTAL);
 152                         }
 153                         else rrdset_next(stcpu_thread);
 154
 155                         rrddim_set(stcpu_thread, "user"  , thread.ru_utime.tv_sec * 1000000ULL + thread.ru_utime.tv_usec);
 156                         rrddim_set(stcpu_thread, "system", thread.ru_stime.tv_sec * 1000000ULL + thread.ru_stime.tv_usec);
 157                         rrdset_done(stcpu_thread);
 158
 159                         // ----------------------------------------------------------------
 160
 161                         if(!stcpu) stcpu = rrdset_find("netdata.server_cpu");
 162                         if(!stcpu) {
 163                                 stcpu = rrdset_create("netdata", "server_cpu", NULL, "netdata", "NetData CPU usage", "milliseconds/s", 2000, rrd_update_every, RRDSET_TYPE_STACKED);
 164
 165                                 rrddim_add(stcpu, "user",  NULL,  1, 1000, RRDDIM_INCREMENTAL);
 166                                 rrddim_add(stcpu, "system", NULL, 1, 1000, RRDDIM_INCREMENTAL);
 167                         }
 168                         else rrdset_next(stcpu);
 169
 170                         rrddim_set(stcpu, "user"  , me.ru_utime.tv_sec * 1000000ULL + me.ru_utime.tv_usec);
 171                         rrddim_set(stcpu, "system", me.ru_stime.tv_sec * 1000000ULL + me.ru_stime.tv_usec);
 172                         rrdset_done(stcpu);
 173
 174                         // ----------------------------------------------------------------
 175
 176                         if(!stclients) stclients = rrdset_find("netdata.clients");
 177                         if(!stclients) {
 178                                 stclients = rrdset_create("netdata", "clients", NULL, "netdata", "NetData Web Clients", "connected clients", 3000, rrd_update_every, RRDSET_TYPE_LINE);
 179
 180                                 rrddim_add(stclients, "clients",  NULL,  1, 1, RRDDIM_ABSOLUTE);
 181                         }
 182                         else rrdset_next(stclients);
 183
 184                         rrddim_set(stclients, "clients", global_statistics.connected_clients);
 185                         rrdset_done(stclients);
 186
 187                         // ----------------------------------------------------------------
 188
 189                         if(!streqs) streqs = rrdset_find("netdata.requests");
 190                         if(!streqs) {
 191                                 streqs = rrdset_create("netdata", "requests", NULL, "netdata", "NetData Web Requests", "requests/s", 3001, rrd_update_every, RRDSET_TYPE_LINE);
 192
 193                                 rrddim_add(streqs, "requests",  NULL,  1, 1, RRDDIM_INCREMENTAL);
 194                         }
 195                         else rrdset_next(streqs);
 196
 197                         rrddim_set(streqs, "requests", global_statistics.web_requests);
 198                         rrdset_done(streqs);
 199
 200                         // ----------------------------------------------------------------
 201
 202                         if(!stbytes) stbytes = rrdset_find("netdata.net");
 203                         if(!stbytes) {
 204                                 stbytes = rrdset_create("netdata", "net", NULL, "netdata", "NetData Network Traffic", "kilobits/s", 3002, rrd_update_every, RRDSET_TYPE_AREA);
 205
 206                                 rrddim_add(stbytes, "in",  NULL,  8, 1024, RRDDIM_INCREMENTAL);
 207                                 rrddim_add(stbytes, "out",  NULL,  -8, 1024, RRDDIM_INCREMENTAL);
 208                         }
 209                         else rrdset_next(stbytes);
 210
 211                         rrddim_set(stbytes, "in", global_statistics.bytes_received);
 212                         rrddim_set(stbytes, "out", global_statistics.bytes_sent);
 213                         rrdset_done(stbytes);
 214                 }
 215
 216                 usleep((useconds_t) susec);
 217
 218                 // copy current to last
 219                 bcopy(&now, &last, sizeof(struct timeval));
 220         }
 221
 222         return NULL;
 223 }