src/freebsd_sysctl.c

   1 #include "common.h"
   2
   3 // NEEDED BY: struct vmtotal, struct vmmeter
   4 #include <sys/vmmeter.h>
   5 // NEEDED BY: struct devstat
   6 #include <sys/devicestat.h>
   7 // NEEDED BY: struct xswdev
   8 #include <vm/vm_param.h>
   9 // NEEDED BY: struct ipc_sem_data
  10 #define _KERNEL
  11 #include <sys/sem.h>
  12 #undef _KERNEL
  13 // NEEDED BY: do_disk_io
  14 #define RRD_TYPE_DISK "disk"
  15
  16 // FreeBSD calculates load averages once every 5 seconds
  17 #define MIN_LOADAVG_UPDATE_EVERY 5
  18
  19 int do_freebsd_sysctl(int update_every, usec_t dt) {
  20     (void)dt;
  21
  22     static int do_cpu = -1, do_cpu_cores = -1, do_interrupts = -1, do_context = -1, do_forks = -1, do_processes = -1,
  23         do_loadavg = -1, do_all_processes = -1, do_disk_io = -1, do_swap = -1, do_ram = -1, do_swapio = -1,
  24         do_pgfaults = -1, do_committed = -1, do_ipc_semaphores = -1;
  25
  26     if (unlikely(do_cpu == -1)) {
  27         do_cpu                  = config_get_boolean("plugin:freebsd:sysctl", "cpu utilization", 1);
  28         do_cpu_cores            = config_get_boolean("plugin:freebsd:sysctl", "per cpu core utilization", 1);
  29         do_interrupts           = config_get_boolean("plugin:freebsd:sysctl", "cpu interrupts", 1);
  30         do_context              = config_get_boolean("plugin:freebsd:sysctl", "context switches", 1);
  31         do_forks                = config_get_boolean("plugin:freebsd:sysctl", "processes started", 1);
  32         do_processes            = config_get_boolean("plugin:freebsd:sysctl", "processes running", 1);
  33         do_loadavg              = config_get_boolean("plugin:freebsd:sysctl", "enable load average", 1);
  34         do_all_processes        = config_get_boolean("plugin:freebsd:sysctl", "enable total processes", 1);
  35         do_disk_io              = config_get_boolean("plugin:freebsd:sysctl", "stats for all disks", 1);
  36         do_swap                 = config_get_boolean("plugin:freebsd:sysctl", "system swap", 1);
  37         do_ram                  = config_get_boolean("plugin:freebsd:sysctl", "system ram", 1);
  38         do_swapio               = config_get_boolean("plugin:freebsd:sysctl", "swap i/o", 1);
  39         do_pgfaults             = config_get_boolean("plugin:freebsd:sysctl", "memory page faults", 1);
  40         do_committed            = config_get_boolean("plugin:freebsd:sysctl", "committed memory", 1);
  41         do_ipc_semaphores       = config_get_boolean("plugin:freebsd:sysctl", "ipc semaphores", 1);
  42     }
  43
  44     RRDSET *st;
  45
  46     int system_pagesize = getpagesize(); // wouldn't it be better to get value directly from hw.pagesize?
  47     int i;
  48
  49 // NEEDED BY: do_loadavg
  50     static usec_t last_loadavg_usec = 0;
  51     struct loadavg sysload;
  52
  53 // NEEDED BY: do_cpu, do_cpu_cores
  54     long cp_time[CPUSTATES];
  55
  56 // NEEDED BY: do_cpu_cores
  57     int ncpus;
  58     static long *pcpu_cp_time = NULL;
  59     char cpuid[8]; // no more than 4 digits expected
  60
  61 // NEEDED BY: do_all_processes, do_processes
  62     struct vmtotal vmtotal_data;
  63
  64 // NEEDED BY: do_context, do_forks
  65     u_int u_int_data;
  66
  67 // NEEDED BY: do_interrupts
  68     size_t intrcnt_size;
  69     unsigned long nintr = 0;
  70     static unsigned long *intrcnt = NULL;
  71     unsigned long long totalintr = 0;
  72
  73 // NEEDED BY: do_disk_io
  74     #define BINTIME_SCALE 5.42101086242752217003726400434970855712890625e-17 // this is 1000/2^64
  75     int numdevs;
  76     static void *devstat_data = NULL;
  77     struct devstat *dstat;
  78     struct cur_dstat {
  79         collected_number duration_read_ms;
  80         collected_number duration_write_ms;
  81         collected_number busy_time_ms;
  82     } cur_dstat;
  83     struct prev_dstat {
  84         collected_number bytes_read;
  85         collected_number bytes_write;
  86         collected_number operations_read;
  87         collected_number operations_write;
  88         collected_number duration_read_ms;
  89         collected_number duration_write_ms;
  90         collected_number busy_time_ms;
  91     } prev_dstat;
  92
  93     // NEEDED BY: do_swap
  94     size_t mibsize, size;
  95     int mib[3]; // CTL_MAXNAME = 24 maximum mib components (sysctl.h)
  96     struct xswdev xsw;
  97     struct total_xsw {
  98         collected_number bytes_used;
  99         collected_number bytes_total;
 100     } total_xsw = {0, 0};
 101
 102     // NEEDED BY: do_swapio, do_ram
 103     struct vmmeter vmmeter_data;
 104
 105     // NEEDED BY: do_ram
 106     int vfs_bufspace_count;
 107
 108     // NEEDED BY: do_ipc_semaphores
 109     struct ipc_sem {
 110         int semmni;
 111         collected_number sets;
 112         collected_number semaphores;
 113     } ipc_sem = {0, 0, 0};
 114     static struct semid_kernel *ipc_sem_data = NULL;
 115
 116
 117     // --------------------------------------------------------------------
 118
 119     if (last_loadavg_usec <= dt) {
 120         if (likely(do_loadavg)) {
 121             if (unlikely(GETSYSCTL("vm.loadavg", sysload))) {
 122                 do_loadavg = 0;
 123                 error("DISABLED: system.load");
 124             } else {
 125
 126                 st = rrdset_find_bytype("system", "load");
 127                 if (unlikely(!st)) {
 128                     st = rrdset_create("system", "load", NULL, "load", NULL, "System Load Average", "load", 100, (update_every < MIN_LOADAVG_UPDATE_EVERY) ? MIN_LOADAVG_UPDATE_EVERY : update_every, RRDSET_TYPE_LINE);
 129                     rrddim_add(st, "load1", NULL, 1, 1000, RRDDIM_ABSOLUTE);
 130                     rrddim_add(st, "load5", NULL, 1, 1000, RRDDIM_ABSOLUTE);
 131                     rrddim_add(st, "load15", NULL, 1, 1000, RRDDIM_ABSOLUTE);
 132                 }
 133                 else rrdset_next(st);
 134
 135                 rrddim_set(st, "load1", (collected_number) ((double)sysload.ldavg[0] / sysload.fscale * 1000));
 136                 rrddim_set(st, "load5", (collected_number) ((double)sysload.ldavg[1] / sysload.fscale * 1000));
 137                 rrddim_set(st, "load15", (collected_number) ((double)sysload.ldavg[2] / sysload.fscale * 1000));
 138                 rrdset_done(st);
 139             }
 140         }
 141
 142         last_loadavg_usec = st->update_every * USEC_PER_SEC;
 143     }
 144     else last_loadavg_usec -= dt;
 145
 146     // --------------------------------------------------------------------
 147
 148     if (likely(do_all_processes | do_processes | do_committed)) {
 149         if (unlikely(GETSYSCTL("vm.vmtotal", vmtotal_data))) {
 150             do_all_processes = 0;
 151             error("DISABLED: system.active_processes");
 152             do_processes = 0;
 153             error("DISABLED: system.processes");
 154             do_committed = 0;
 155             error("DISABLED: mem.committed");
 156         } else {
 157             if (likely(do_all_processes)) {
 158
 159                 st = rrdset_find_bytype("system", "active_processes");
 160                 if (unlikely(!st)) {
 161                     st = rrdset_create("system", "active_processes", NULL, "processes", NULL, "System Active Processes", "processes", 750, update_every, RRDSET_TYPE_LINE);
 162                     rrddim_add(st, "active", NULL, 1, 1, RRDDIM_ABSOLUTE);
 163                 }
 164                 else rrdset_next(st);
 165
 166                 rrddim_set(st, "active", (vmtotal_data.t_rq + vmtotal_data.t_dw + vmtotal_data.t_pw + vmtotal_data.t_sl + vmtotal_data.t_sw));
 167                 rrdset_done(st);
 168             }
 169
 170             // --------------------------------------------------------------------
 171
 172             if (likely(do_processes)) {
 173
 174                 st = rrdset_find_bytype("system", "processes");
 175                 if (unlikely(!st)) {
 176                     st = rrdset_create("system", "processes", NULL, "processes", NULL, "System Processes", "processes", 600, update_every, RRDSET_TYPE_LINE);
 177
 178                     rrddim_add(st, "running", NULL, 1, 1, RRDDIM_ABSOLUTE);
 179                     rrddim_add(st, "blocked", NULL, -1, 1, RRDDIM_ABSOLUTE);
 180                 }
 181                 else rrdset_next(st);
 182
 183                 rrddim_set(st, "running", vmtotal_data.t_rq);
 184                 rrddim_set(st, "blocked", (vmtotal_data.t_dw + vmtotal_data.t_pw));
 185                 rrdset_done(st);
 186             }
 187
 188             // --------------------------------------------------------------------
 189
 190             if (likely(do_committed)) {
 191                 st = rrdset_find("mem.committed");
 192                 if (unlikely(!st)) {
 193                     st = rrdset_create("mem", "committed", NULL, "system", NULL, "Committed (Allocated) Memory", "MB", 5000, update_every, RRDSET_TYPE_AREA);
 194                     st->isdetail = 1;
 195
 196                     rrddim_add(st, "Committed_AS", NULL, system_pagesize, 1024, RRDDIM_ABSOLUTE);
 197                 }
 198                 else rrdset_next(st);
 199
 200                 rrddim_set(st, "Committed_AS", vmtotal_data.t_rm);
 201                 rrdset_done(st);
 202             }
 203         }
 204     }
 205
 206     // --------------------------------------------------------------------
 207
 208     if (likely(do_cpu)) {
 209         if (unlikely(CPUSTATES != 5)) {
 210             error("FREEBSD: There are %d CPU states (5 was expected)", CPUSTATES);
 211             do_cpu = 0;
 212             error("DISABLED: system.cpu");
 213         } else {
 214             if (unlikely(GETSYSCTL("kern.cp_time", cp_time))) {
 215                 do_cpu = 0;
 216                 error("DISABLED: system.cpu");
 217             } else {
 218
 219                 st = rrdset_find_bytype("system", "cpu");
 220                 if (unlikely(!st)) {
 221                     st = rrdset_create("system", "cpu", NULL, "cpu", "system.cpu", "Total CPU utilization", "percentage", 100, update_every, RRDSET_TYPE_STACKED);
 222
 223                     rrddim_add(st, "user", NULL, 1, 1, RRDDIM_PCENT_OVER_DIFF_TOTAL);
 224                     rrddim_add(st, "nice", NULL, 1, 1, RRDDIM_PCENT_OVER_DIFF_TOTAL);
 225                     rrddim_add(st, "system", NULL, 1, 1, RRDDIM_PCENT_OVER_DIFF_TOTAL);
 226                     rrddim_add(st, "interrupt", NULL, 1, 1, RRDDIM_PCENT_OVER_DIFF_TOTAL);
 227                     rrddim_add(st, "idle", NULL, 1, 1, RRDDIM_PCENT_OVER_DIFF_TOTAL);
 228                     rrddim_hide(st, "idle");
 229                 }
 230                 else rrdset_next(st);
 231
 232                 rrddim_set(st, "user", cp_time[0]);
 233                 rrddim_set(st, "nice", cp_time[1]);
 234                 rrddim_set(st, "system", cp_time[2]);
 235                 rrddim_set(st, "interrupt", cp_time[3]);
 236                 rrddim_set(st, "idle", cp_time[4]);
 237                 rrdset_done(st);
 238             }
 239         }
 240     }
 241
 242     // --------------------------------------------------------------------
 243
 244     if (likely(do_cpu_cores)) {
 245         if (unlikely(CPUSTATES != 5)) {
 246             error("FREEBSD: There are %d CPU states (5 was expected)", CPUSTATES);
 247             do_cpu_cores = 0;
 248             error("DISABLED: cpu.cpuXX");
 249         } else {
 250             if (unlikely(GETSYSCTL("kern.smp.cpus", ncpus))) {
 251                 do_cpu_cores = 0;
 252                 error("DISABLED: cpu.cpuXX");
 253             } else {
 254                 pcpu_cp_time = reallocz(pcpu_cp_time, sizeof(cp_time) * ncpus);
 255
 256                 for (i = 0; i < ncpus; i++) {
 257                     if (unlikely(getsysctl("kern.cp_times", pcpu_cp_time, sizeof(cp_time) * ncpus))) {
 258                         do_cpu_cores = 0;
 259                         error("DISABLED: cpu.cpuXX");
 260                         break;
 261                     }
 262                     if (unlikely(ncpus > 9999)) {
 263                         error("FREEBSD: There are more than 4 digits in cpu cores number");
 264                         do_cpu_cores = 0;
 265                         error("DISABLED: cpu.cpuXX");
 266                         break;
 267                     }
 268                     snprintfz(cpuid, 8, "cpu%d", i);
 269
 270                     st = rrdset_find_bytype("cpu", cpuid);
 271                     if (unlikely(!st)) {
 272                         st = rrdset_create("cpu", cpuid, NULL, "utilization", "cpu.cpu", "Core utilization", "percentage", 1000, update_every, RRDSET_TYPE_STACKED);
 273
 274                         rrddim_add(st, "user", NULL, 1, 1, RRDDIM_PCENT_OVER_DIFF_TOTAL);
 275                         rrddim_add(st, "nice", NULL, 1, 1, RRDDIM_PCENT_OVER_DIFF_TOTAL);
 276                         rrddim_add(st, "system", NULL, 1, 1, RRDDIM_PCENT_OVER_DIFF_TOTAL);
 277                         rrddim_add(st, "interrupt", NULL, 1, 1, RRDDIM_PCENT_OVER_DIFF_TOTAL);
 278                         rrddim_add(st, "idle", NULL, 1, 1, RRDDIM_PCENT_OVER_DIFF_TOTAL);
 279                         rrddim_hide(st, "idle");
 280                     }
 281                     else rrdset_next(st);
 282
 283                     rrddim_set(st, "user", pcpu_cp_time[i * 5 + 0]);
 284                     rrddim_set(st, "nice", pcpu_cp_time[i * 5 + 1]);
 285                     rrddim_set(st, "system", pcpu_cp_time[i * 5 + 2]);
 286                     rrddim_set(st, "interrupt", pcpu_cp_time[i * 5 + 3]);
 287                     rrddim_set(st, "idle", pcpu_cp_time[i * 5 + 4]);
 288                     rrdset_done(st);
 289                 }
 290             }
 291         }
 292     }
 293
 294     // --------------------------------------------------------------------
 295
 296     if (likely(do_interrupts)) {
 297         if (unlikely(sysctlbyname("hw.intrcnt", NULL, &intrcnt_size, NULL, 0) == -1)) {
 298             error("FREEBSD: sysctl(hw.intrcnt...) failed: %s", strerror(errno));
 299             do_interrupts = 0;
 300             error("DISABLED: system.intr");
 301         } else {
 302             nintr = intrcnt_size / sizeof(u_long);
 303             intrcnt = reallocz(intrcnt, nintr * sizeof(u_long));
 304             if (unlikely(getsysctl("hw.intrcnt", intrcnt, nintr * sizeof(u_long)))){
 305                 do_interrupts = 0;
 306                 error("DISABLED: system.intr");
 307             } else {
 308                 for (i = 0; i < nintr; i++)
 309                     totalintr += intrcnt[i];
 310
 311                 st = rrdset_find_bytype("system", "intr");
 312                 if (unlikely(!st)) {
 313                     st = rrdset_create("system", "intr", NULL, "interrupts", NULL, "Total Device Interrupts", "interrupts/s", 900, update_every, RRDSET_TYPE_LINE);
 314                     st->isdetail = 1;
 315
 316                     rrddim_add(st, "interrupts", NULL, 1, 1, RRDDIM_INCREMENTAL);
 317                 }
 318                 else rrdset_next(st);
 319
 320                 rrddim_set(st, "interrupts", totalintr);
 321                 rrdset_done(st);
 322             }
 323         }
 324     }
 325
 326     // --------------------------------------------------------------------
 327
 328     if (likely(do_context)) {
 329         if (unlikely(GETSYSCTL("vm.stats.sys.v_swtch", u_int_data))) {
 330             do_context = 0;
 331             error("DISABLED: system.ctxt");
 332         } else {
 333
 334             st = rrdset_find_bytype("system", "ctxt");
 335             if (unlikely(!st)) {
 336                 st = rrdset_create("system", "ctxt", NULL, "processes", NULL, "CPU Context Switches", "context switches/s", 800, update_every, RRDSET_TYPE_LINE);
 337
 338                 rrddim_add(st, "switches", NULL, 1, 1, RRDDIM_INCREMENTAL);
 339             }
 340             else rrdset_next(st);
 341
 342             rrddim_set(st, "switches", u_int_data);
 343             rrdset_done(st);
 344         }
 345     }
 346
 347     // --------------------------------------------------------------------
 348
 349     if (likely(do_forks)) {
 350         if (unlikely(GETSYSCTL("vm.stats.vm.v_forks", u_int_data))) {
 351             do_forks = 0;
 352             error("DISABLED: system.forks");
 353         } else {
 354
 355             st = rrdset_find_bytype("system", "forks");
 356             if (unlikely(!st)) {
 357                 st = rrdset_create("system", "forks", NULL, "processes", NULL, "Started Processes", "processes/s", 700, update_every, RRDSET_TYPE_LINE);
 358                 st->isdetail = 1;
 359
 360                 rrddim_add(st, "started", NULL, 1, 1, RRDDIM_INCREMENTAL);
 361             }
 362             else rrdset_next(st);
 363
 364             rrddim_set(st, "started", u_int_data);
 365             rrdset_done(st);
 366         }
 367     }
 368
 369     // --------------------------------------------------------------------
 370
 371     if (likely(do_disk_io)) {
 372         if (unlikely(GETSYSCTL("kern.devstat.numdevs", numdevs))) {
 373             do_disk_io = 0;
 374             error("DISABLED: disk.io");
 375         } else {
 376             devstat_data = reallocz(devstat_data, sizeof(long) + sizeof(struct devstat) * numdevs); // there is generation number before devstat structures
 377             if (unlikely(getsysctl("kern.devstat.all", devstat_data, sizeof(long) + sizeof(struct devstat) * numdevs))) {
 378                 do_disk_io = 0;
 379                 error("DISABLED: disk.io");
 380             } else {
 381                 dstat = devstat_data + sizeof(long); // skip generation number
 382                 collected_number total_disk_reads = 0;
 383                 collected_number total_disk_writes = 0;
 384
 385                 for (i = 0; i < numdevs; i++) {
 386                     if ((dstat[i].device_type == (DEVSTAT_TYPE_IF_SCSI | DEVSTAT_TYPE_DIRECT)) || (dstat[i].device_type == (DEVSTAT_TYPE_IF_IDE | DEVSTAT_TYPE_DIRECT))) {
 387
 388                         // --------------------------------------------------------------------
 389
 390                         st = rrdset_find_bytype(RRD_TYPE_DISK, dstat[i].device_name);
 391                         if (unlikely(!st)) {
 392                             st = rrdset_create(RRD_TYPE_DISK, dstat[i].device_name, NULL, dstat[i].device_name, "disk.io", "Disk I/O Bandwidth", "kilobytes/s", 2000, update_every, RRDSET_TYPE_AREA);
 393
 394                             rrddim_add(st, "reads", NULL, 1, 1024, RRDDIM_INCREMENTAL);
 395                             rrddim_add(st, "writes", NULL, -1, 1024, RRDDIM_INCREMENTAL);
 396                         }
 397                         else rrdset_next(st);
 398
 399                         total_disk_reads += dstat[i].bytes[DEVSTAT_READ];
 400                         total_disk_writes += dstat[i].bytes[DEVSTAT_WRITE];
 401                         prev_dstat.bytes_read = rrddim_set(st, "reads", dstat[i].bytes[DEVSTAT_READ]);
 402                         prev_dstat.bytes_write = rrddim_set(st, "writes", dstat[i].bytes[DEVSTAT_WRITE]);
 403                         rrdset_done(st);
 404
 405                         // --------------------------------------------------------------------
 406
 407                         st = rrdset_find_bytype("disk_ops", dstat[i].device_name);
 408                         if (unlikely(!st)) {
 409                             st = rrdset_create("disk_ops", dstat[i].device_name, NULL, dstat[i].device_name, "disk.ops", "Disk Completed I/O Operations", "operations/s", 2001, update_every, RRDSET_TYPE_LINE);
 410                             st->isdetail = 1;
 411
 412                             rrddim_add(st, "reads", NULL, 1, 1, RRDDIM_INCREMENTAL);
 413                             rrddim_add(st, "writes", NULL, -1, 1, RRDDIM_INCREMENTAL);
 414                         }
 415                         else rrdset_next(st);
 416
 417                         prev_dstat.operations_read = rrddim_set(st, "reads", dstat[i].operations[DEVSTAT_READ]);
 418                         prev_dstat.operations_write = rrddim_set(st, "writes", dstat[i].operations[DEVSTAT_WRITE]);
 419                         rrdset_done(st);
 420
 421                         // --------------------------------------------------------------------
 422
 423                         st = rrdset_find_bytype("disk_qops", dstat[i].device_name);
 424                         if (unlikely(!st)) {
 425                             st = rrdset_create("disk_qops", dstat[i].device_name, NULL, dstat[i].device_name, "disk.qops", "Disk Current I/O Operations", "operations", 2002, update_every, RRDSET_TYPE_LINE);
 426                             st->isdetail = 1;
 427
 428                             rrddim_add(st, "operations", NULL, 1, 1, RRDDIM_ABSOLUTE);
 429                         }
 430                         else rrdset_next(st);
 431
 432                         rrddim_set(st, "operations", dstat[i].start_count - dstat[i].end_count);
 433                         rrdset_done(st);
 434
 435                         // --------------------------------------------------------------------
 436
 437                         st = rrdset_find_bytype("disk_util", dstat[i].device_name);
 438                         if (unlikely(!st)) {
 439                             st = rrdset_create("disk_util", dstat[i].device_name, NULL, dstat[i].device_name, "disk.util", "Disk Utilization Time", "% of time working", 2004, update_every, RRDSET_TYPE_AREA);
 440                             st->isdetail = 1;
 441
 442                             rrddim_add(st, "utilization", NULL, 1, 10, RRDDIM_INCREMENTAL);
 443                         }
 444                         else rrdset_next(st);
 445
 446                         cur_dstat.busy_time_ms = dstat[i].busy_time.sec * 1000 + dstat[i].busy_time.frac * BINTIME_SCALE;
 447                         prev_dstat.busy_time_ms = rrddim_set(st, "utilization", cur_dstat.busy_time_ms);
 448                         rrdset_done(st);
 449
 450                         // --------------------------------------------------------------------
 451
 452                         st = rrdset_find_bytype("disk_iotime", dstat[i].device_name);
 453                         if (unlikely(!st)) {
 454                             st = rrdset_create("disk_iotime", dstat[i].device_name, NULL, dstat[i].device_name, "disk.iotime", "Disk Total I/O Time", "milliseconds/s", 2022, update_every, RRDSET_TYPE_LINE);
 455                             st->isdetail = 1;
 456
 457                             rrddim_add(st, "reads", NULL, 1, 1, RRDDIM_INCREMENTAL);
 458                             rrddim_add(st, "writes", NULL, -1, 1, RRDDIM_INCREMENTAL);
 459                         }
 460                         else rrdset_next(st);
 461
 462                         cur_dstat.duration_read_ms = dstat[i].duration[DEVSTAT_READ].sec * 1000 + dstat[i].duration[DEVSTAT_READ].frac * BINTIME_SCALE;
 463                         cur_dstat.duration_write_ms = dstat[i].duration[DEVSTAT_WRITE].sec * 1000 + dstat[i].duration[DEVSTAT_READ].frac * BINTIME_SCALE;
 464                         prev_dstat.duration_read_ms = rrddim_set(st, "reads", cur_dstat.duration_read_ms);
 465                         prev_dstat.duration_write_ms = rrddim_set(st, "writes", cur_dstat.duration_write_ms);
 466                         rrdset_done(st);
 467
 468                         // --------------------------------------------------------------------
 469                         // calculate differential charts
 470                         // only if this is not the first time we run
 471
 472                         if (likely(dt)) {
 473
 474                             // --------------------------------------------------------------------
 475
 476                             st = rrdset_find_bytype("disk_await", dstat[i].device_name);
 477                             if (unlikely(!st)) {
 478                                 st = rrdset_create("disk_await", dstat[i].device_name, NULL, dstat[i].device_name, "disk.await", "Average Completed I/O Operation Time", "ms per operation", 2005, update_every, RRDSET_TYPE_LINE);
 479                                 st->isdetail = 1;
 480
 481                                 rrddim_add(st, "reads", NULL, 1, 1, RRDDIM_ABSOLUTE);
 482                                 rrddim_add(st, "writes", NULL, -1, 1, RRDDIM_ABSOLUTE);
 483                             }
 484                             else rrdset_next(st);
 485
 486                             rrddim_set(st, "reads", (dstat[i].operations[DEVSTAT_READ] - prev_dstat.operations_read) ?
 487                                 (cur_dstat.duration_read_ms - prev_dstat.duration_read_ms) / (dstat[i].operations[DEVSTAT_READ] - prev_dstat.operations_read) : 0);
 488                             rrddim_set(st, "writes", (dstat[i].operations[DEVSTAT_WRITE] - prev_dstat.operations_write) ?
 489                                 (cur_dstat.duration_write_ms - prev_dstat.duration_write_ms) / (dstat[i].operations[DEVSTAT_WRITE] - prev_dstat.operations_write) : 0);
 490                             rrdset_done(st);
 491
 492                             // --------------------------------------------------------------------
 493
 494                             st = rrdset_find_bytype("disk_avgsz", dstat[i].device_name);
 495                             if (unlikely(!st)) {
 496                                 st = rrdset_create("disk_avgsz", dstat[i].device_name, NULL, dstat[i].device_name, "disk.avgsz", "Average Completed I/O Operation Bandwidth", "kilobytes per operation", 2006, update_every, RRDSET_TYPE_AREA);
 497                                 st->isdetail = 1;
 498
 499                                 rrddim_add(st, "reads", NULL, 1, 1024, RRDDIM_ABSOLUTE);
 500                                 rrddim_add(st, "writes", NULL, -1, 1024, RRDDIM_ABSOLUTE);
 501                             }
 502                             else rrdset_next(st);
 503
 504                             rrddim_set(st, "reads", (dstat[i].operations[DEVSTAT_READ] - prev_dstat.operations_read) ?
 505                                 (dstat[i].bytes[DEVSTAT_READ] - prev_dstat.bytes_read) / (dstat[i].operations[DEVSTAT_READ] - prev_dstat.operations_read) : 0);
 506                             rrddim_set(st, "writes", (dstat[i].operations[DEVSTAT_WRITE] - prev_dstat.operations_write) ?
 507                                 (dstat[i].bytes[DEVSTAT_WRITE] - prev_dstat.bytes_write) / (dstat[i].operations[DEVSTAT_WRITE] - prev_dstat.operations_write) : 0);
 508                             rrdset_done(st);
 509
 510                             // --------------------------------------------------------------------
 511
 512                             st = rrdset_find_bytype("disk_svctm", dstat[i].device_name);
 513                             if (unlikely(!st)) {
 514                                 st = rrdset_create("disk_svctm", dstat[i].device_name, NULL, dstat[i].device_name, "disk.svctm", "Average Service Time", "ms per operation", 2007, update_every, RRDSET_TYPE_LINE);
 515                                 st->isdetail = 1;
 516
 517                                 rrddim_add(st, "svctm", NULL, 1, 1, RRDDIM_ABSOLUTE);
 518                             }
 519                             else rrdset_next(st);
 520
 521                             rrddim_set(st, "svctm", ((dstat[i].operations[DEVSTAT_READ] - prev_dstat.operations_read) + (dstat[i].operations[DEVSTAT_WRITE] - prev_dstat.operations_write)) ?
 522                                 (cur_dstat.busy_time_ms - prev_dstat.busy_time_ms) / ((dstat[i].operations[DEVSTAT_READ] - prev_dstat.operations_read) + (dstat[i].operations[DEVSTAT_WRITE] - prev_dstat.operations_write)) : 0);
 523                             rrdset_done(st);
 524                         }
 525                     }
 526
 527                     // --------------------------------------------------------------------
 528
 529                     st = rrdset_find_bytype("system", "io");
 530                     if (unlikely(!st)) {
 531                         st = rrdset_create("system", "io", NULL, "disk", NULL, "Disk I/O", "kilobytes/s", 150, update_every, RRDSET_TYPE_AREA);
 532                         rrddim_add(st, "in",  NULL,  1, 1024, RRDDIM_INCREMENTAL);
 533                         rrddim_add(st, "out", NULL, -1, 1024, RRDDIM_INCREMENTAL);
 534                     }
 535                     else rrdset_next(st);
 536
 537                     rrddim_set(st, "in", total_disk_reads);
 538                     rrddim_set(st, "out", total_disk_writes);
 539                     rrdset_done(st);
 540                 }
 541             }
 542         }
 543     }
 544
 545     // --------------------------------------------------------------------
 546
 547
 548     if (likely(do_swap)) {
 549         mibsize = sizeof mib / sizeof mib[0];
 550         if (unlikely(sysctlnametomib("vm.swap_info", mib, &mibsize) == -1)) {
 551             error("FREEBSD: sysctl(%s...) failed: %s", "vm.swap_info", strerror(errno));
 552             do_swap = 0;
 553             error("DISABLED: disk.io");
 554         } else {
 555             for (i = 0; ; i++) {
 556                 mib[mibsize] = i;
 557                 size = sizeof(xsw);
 558                 if (unlikely(sysctl(mib, mibsize + 1, &xsw, &size, NULL, 0) == -1 )) {
 559                     if (unlikely(errno != ENOENT)) {
 560                         error("FREEBSD: sysctl(%s...) failed: %s", "vm.swap_info", strerror(errno));
 561                         do_swap = 0;
 562                         error("DISABLED: disk.io");
 563                     } else {
 564                         if (unlikely(size != sizeof(xsw))) {
 565                             error("FREEBSD: sysctl(%s...) expected %lu, got %lu", "vm.swap_info", (unsigned long)sizeof(xsw), (unsigned long)size);
 566                             do_swap = 0;
 567                             error("DISABLED: disk.io");
 568                         } else break;
 569                     }
 570                 }
 571                 total_xsw.bytes_used += xsw.xsw_used * system_pagesize;
 572                 total_xsw.bytes_total += xsw.xsw_nblks * system_pagesize;
 573             }
 574
 575             if (likely(do_swap)) {
 576                 st = rrdset_find("system.swap");
 577                 if (unlikely(!st)) {
 578                     st = rrdset_create("system", "swap", NULL, "swap", NULL, "System Swap", "MB", 201, update_every, RRDSET_TYPE_STACKED);
 579                     st->isdetail = 1;
 580
 581                     rrddim_add(st, "free",    NULL, 1, 1048576, RRDDIM_ABSOLUTE);
 582                     rrddim_add(st, "used",    NULL, 1, 1048576, RRDDIM_ABSOLUTE);
 583                 }
 584                 else rrdset_next(st);
 585
 586                 rrddim_set(st, "used", total_xsw.bytes_used);
 587                 rrddim_set(st, "free", total_xsw.bytes_total - total_xsw.bytes_used);
 588                 rrdset_done(st);
 589             }
 590         }
 591     }
 592
 593     // --------------------------------------------------------------------
 594
 595     if (likely(do_ram)) {
 596         if (unlikely(GETSYSCTL("vm.stats.vm.v_active_count",    vmmeter_data.v_active_count) ||
 597                      GETSYSCTL("vm.stats.vm.v_inactive_count",  vmmeter_data.v_inactive_count) ||
 598                      GETSYSCTL("vm.stats.vm.v_wire_count",      vmmeter_data.v_wire_count) ||
 599                      GETSYSCTL("vm.stats.vm.v_cache_count",     vmmeter_data.v_cache_count) ||
 600                      GETSYSCTL("vfs.bufspace",                  vfs_bufspace_count) ||
 601                      GETSYSCTL("vm.stats.vm.v_free_count",      vmmeter_data.v_free_count))) {
 602             do_swapio = 0;
 603             error("DISABLED: system.swapio");
 604         } else {
 605             st = rrdset_find("system.ram");
 606             if (unlikely(!st)) {
 607                 st = rrdset_create("system", "ram", NULL, "ram", NULL, "System RAM", "MB", 200, update_every, RRDSET_TYPE_STACKED);
 608
 609                 rrddim_add(st, "active",    NULL, system_pagesize, 1024, RRDDIM_ABSOLUTE);
 610                 rrddim_add(st, "inactive",  NULL, system_pagesize, 1024, RRDDIM_ABSOLUTE);
 611                 rrddim_add(st, "wired",     NULL, system_pagesize, 1024, RRDDIM_ABSOLUTE);
 612                 rrddim_add(st, "cache",     NULL, system_pagesize, 1024, RRDDIM_ABSOLUTE);
 613                 rrddim_add(st, "buffers",   NULL, 1, 1024, RRDDIM_ABSOLUTE);
 614                 rrddim_add(st, "free",      NULL, system_pagesize, 1024, RRDDIM_ABSOLUTE);
 615             }
 616             else rrdset_next(st);
 617
 618             rrddim_set(st, "active",    vmmeter_data.v_active_count);
 619             rrddim_set(st, "inactive",  vmmeter_data.v_inactive_count);
 620             rrddim_set(st, "wired",     vmmeter_data.v_wire_count);
 621             rrddim_set(st, "cache",     vmmeter_data.v_cache_count);
 622             rrddim_set(st, "buffers",   vfs_bufspace_count);
 623             rrddim_set(st, "free",      vmmeter_data.v_free_count);
 624             rrdset_done(st);
 625         }
 626     }
 627
 628     // --------------------------------------------------------------------
 629
 630     if (likely(do_swapio)) {
 631         if (unlikely(GETSYSCTL("vm.stats.vm.v_swappgsin", vmmeter_data.v_swappgsin) || GETSYSCTL("vm.stats.vm.v_vnodepgsout", vmmeter_data.v_swappgsout))) {
 632             do_swapio = 0;
 633             error("DISABLED: system.swapio");
 634         } else {
 635             st = rrdset_find("system.swapio");
 636             if (unlikely(!st)) {
 637                 st = rrdset_create("system", "swapio", NULL, "swap", NULL, "Swap I/O", "kilobytes/s", 250, update_every, RRDSET_TYPE_AREA);
 638
 639                 rrddim_add(st, "in",  NULL, system_pagesize, 1024, RRDDIM_INCREMENTAL);
 640                 rrddim_add(st, "out", NULL, -system_pagesize, 1024, RRDDIM_INCREMENTAL);
 641             }
 642             else rrdset_next(st);
 643
 644             rrddim_set(st, "in", vmmeter_data.v_swappgsin);
 645             rrddim_set(st, "out", vmmeter_data.v_swappgsout);
 646             rrdset_done(st);
 647         }
 648     }
 649
 650     // --------------------------------------------------------------------
 651
 652     if (likely(do_pgfaults)) {
 653         if (unlikely(GETSYSCTL("vm.stats.vm.v_vm_faults",   vmmeter_data.v_vm_faults) ||
 654                      GETSYSCTL("vm.stats.vm.v_io_faults",   vmmeter_data.v_io_faults) ||
 655                      GETSYSCTL("vm.stats.vm.v_cow_faults",  vmmeter_data.v_cow_faults) ||
 656                      GETSYSCTL("vm.stats.vm.v_cow_optim",   vmmeter_data.v_cow_optim) ||
 657                      GETSYSCTL("vm.stats.vm.v_intrans",     vmmeter_data.v_intrans))) {
 658             do_pgfaults = 0;
 659             error("DISABLED: mem.pgfaults");
 660         } else {
 661             st = rrdset_find("mem.pgfaults");
 662             if (unlikely(!st)) {
 663                 st = rrdset_create("mem", "pgfaults", NULL, "system", NULL, "Memory Page Faults", "page faults/s", 500, update_every, RRDSET_TYPE_LINE);
 664                 st->isdetail = 1;
 665
 666                 rrddim_add(st, "memory", NULL, 1, 1, RRDDIM_INCREMENTAL);
 667                 rrddim_add(st, "io_requiring", NULL, 1, 1, RRDDIM_INCREMENTAL);
 668                 rrddim_add(st, "cow", NULL, 1, 1, RRDDIM_INCREMENTAL);
 669                 rrddim_add(st, "cow_optimized", NULL, 1, 1, RRDDIM_INCREMENTAL);
 670                 rrddim_add(st, "in_transit", NULL, 1, 1, RRDDIM_INCREMENTAL);
 671             }
 672             else rrdset_next(st);
 673
 674             rrddim_set(st, "memory", vmmeter_data.v_vm_faults);
 675             rrddim_set(st, "io_requiring", vmmeter_data.v_io_faults);
 676             rrddim_set(st, "cow", vmmeter_data.v_cow_faults);
 677             rrddim_set(st, "cow_optimized", vmmeter_data.v_cow_optim);
 678             rrddim_set(st, "in_transit", vmmeter_data.v_intrans);
 679             rrdset_done(st);
 680         }
 681     }
 682
 683     // --------------------------------------------------------------------
 684
 685     if (likely(do_ipc_semaphores)) {
 686         if (unlikely(GETSYSCTL("kern.ipc.semmni", ipc_sem.semmni))) {
 687             do_ipc_semaphores = 0;
 688             error("DISABLED: system.ipc_semaphores");
 689             error("DISABLED: system.ipc_semaphore_arrays");
 690         } else {
 691             ipc_sem_data = reallocz(ipc_sem_data, sizeof(struct semid_kernel) * ipc_sem.semmni);
 692             if (unlikely(getsysctl("kern.ipc.sema", ipc_sem_data, sizeof(struct semid_kernel) * ipc_sem.semmni))) {
 693                 do_ipc_semaphores = 0;
 694                 error("DISABLED: system.ipc_semaphores");
 695                 error("DISABLED: system.ipc_semaphore_arrays");;
 696             } else {
 697                 for (i = 0; i < ipc_sem.semmni; i++) {
 698                     if (unlikely(ipc_sem_data[i].u.sem_perm.mode & SEM_ALLOC)) {
 699                         ipc_sem.sets += 1;
 700                         ipc_sem.semaphores += ipc_sem_data[i].u.sem_nsems;
 701                     }
 702                 }
 703
 704                 // --------------------------------------------------------------------
 705
 706                 st = rrdset_find("system.ipc_semaphores");
 707                 if (unlikely(!st)) {
 708                     st = rrdset_create("system", "ipc_semaphores", NULL, "ipc semaphores", NULL, "IPC Semaphores", "semaphores", 1000, rrd_update_every, RRDSET_TYPE_AREA);
 709                     rrddim_add(st, "semaphores", NULL, 1, 1, RRDDIM_ABSOLUTE);
 710                 }
 711                 else rrdset_next(st);
 712
 713                 rrddim_set(st, "semaphores", ipc_sem.semaphores);
 714                 rrdset_done(st);
 715
 716                 // --------------------------------------------------------------------
 717
 718                 st = rrdset_find("system.ipc_semaphore_arrays");
 719                 if (unlikely(!st)) {
 720                     st = rrdset_create("system", "ipc_semaphore_arrays", NULL, "ipc semaphores", NULL, "IPC Semaphore Arrays", "arrays", 1000, rrd_update_every, RRDSET_TYPE_AREA);
 721                     rrddim_add(st, "arrays", NULL, 1, 1, RRDDIM_ABSOLUTE);
 722                 }
 723                 else rrdset_next(st);
 724
 725                 rrddim_set(st, "arrays", ipc_sem.sets);
 726                 rrdset_done(st);
 727             }
 728         }
 729     }
 730
 731     return 0;
 732 }