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 semid_kernel, struct shmid_kernel, struct msqid_kernel
  10 #define _KERNEL
  11 #include <sys/sem.h>
  12 #include <sys/shm.h>
  13 #include <sys/msg.h>
  14 #undef _KERNEL
  15 // NEEDED BY: do_disk_io
  16 #define RRD_TYPE_DISK "disk"
  17
  18 // FreeBSD calculates load averages once every 5 seconds
  19 #define MIN_LOADAVG_UPDATE_EVERY 5
  20
  21 int do_freebsd_sysctl(int update_every, usec_t dt) {
  22     (void)dt;
  23
  24     static int do_cpu = -1, do_cpu_cores = -1, do_interrupts = -1, do_context = -1, do_forks = -1, do_processes = -1,
  25         do_loadavg = -1, do_all_processes = -1, do_disk_io = -1, do_swap = -1, do_ram = -1, do_swapio = -1,
  26         do_pgfaults = -1, do_committed = -1, do_ipc_semaphores = -1, do_ipc_shared_mem = -1, do_ipc_msg_queues = -1;
  27
  28     if (unlikely(do_cpu == -1)) {
  29         do_cpu                  = config_get_boolean("plugin:freebsd:sysctl", "cpu utilization", 1);
  30         do_cpu_cores            = config_get_boolean("plugin:freebsd:sysctl", "per cpu core utilization", 1);
  31         do_interrupts           = config_get_boolean("plugin:freebsd:sysctl", "cpu interrupts", 1);
  32         do_context              = config_get_boolean("plugin:freebsd:sysctl", "context switches", 1);
  33         do_forks                = config_get_boolean("plugin:freebsd:sysctl", "processes started", 1);
  34         do_processes            = config_get_boolean("plugin:freebsd:sysctl", "processes running", 1);
  35         do_loadavg              = config_get_boolean("plugin:freebsd:sysctl", "enable load average", 1);
  36         do_all_processes        = config_get_boolean("plugin:freebsd:sysctl", "enable total processes", 1);
  37         do_disk_io              = config_get_boolean("plugin:freebsd:sysctl", "stats for all disks", 1);
  38         do_swap                 = config_get_boolean("plugin:freebsd:sysctl", "system swap", 1);
  39         do_ram                  = config_get_boolean("plugin:freebsd:sysctl", "system ram", 1);
  40         do_swapio               = config_get_boolean("plugin:freebsd:sysctl", "swap i/o", 1);
  41         do_pgfaults             = config_get_boolean("plugin:freebsd:sysctl", "memory page faults", 1);
  42         do_committed            = config_get_boolean("plugin:freebsd:sysctl", "committed memory", 1);
  43         do_ipc_semaphores       = config_get_boolean("plugin:freebsd:sysctl", "ipc semaphores", 1);
  44         do_ipc_shared_mem       = config_get_boolean("plugin:freebsd:sysctl", "ipc shared memory", 1);
  45         do_ipc_msg_queues       = config_get_boolean("plugin:freebsd:sysctl", "ipc message queues", 1);
  46     }
  47
  48     RRDSET *st;
  49
  50     int system_pagesize = getpagesize(); // wouldn't it be better to get value directly from hw.pagesize?
  51     int i;
  52
  53 // NEEDED BY: do_loadavg
  54     static usec_t last_loadavg_usec = 0;
  55     struct loadavg sysload;
  56
  57 // NEEDED BY: do_cpu, do_cpu_cores
  58     long cp_time[CPUSTATES];
  59
  60 // NEEDED BY: do_cpu_cores
  61     int ncpus;
  62     static long *pcpu_cp_time = NULL;
  63     char cpuid[8]; // no more than 4 digits expected
  64
  65 // NEEDED BY: do_all_processes, do_processes
  66     struct vmtotal vmtotal_data;
  67
  68 // NEEDED BY: do_context, do_forks
  69     u_int u_int_data;
  70
  71 // NEEDED BY: do_interrupts
  72     size_t intrcnt_size;
  73     unsigned long nintr = 0;
  74     static unsigned long *intrcnt = NULL;
  75     unsigned long long totalintr = 0;
  76
  77 // NEEDED BY: do_disk_io
  78     #define BINTIME_SCALE 5.42101086242752217003726400434970855712890625e-17 // this is 1000/2^64
  79     int numdevs;
  80     static void *devstat_data = NULL;
  81     struct devstat *dstat;
  82     struct cur_dstat {
  83         collected_number duration_read_ms;
  84         collected_number duration_write_ms;
  85         collected_number busy_time_ms;
  86     } cur_dstat;
  87     struct prev_dstat {
  88         collected_number bytes_read;
  89         collected_number bytes_write;
  90         collected_number operations_read;
  91         collected_number operations_write;
  92         collected_number duration_read_ms;
  93         collected_number duration_write_ms;
  94         collected_number busy_time_ms;
  95     } prev_dstat;
  96
  97     // NEEDED BY: do_swap
  98     size_t mibsize, size;
  99     int mib[3]; // CTL_MAXNAME = 24 maximum mib components (sysctl.h)
 100     struct xswdev xsw;
 101     struct total_xsw {
 102         collected_number bytes_used;
 103         collected_number bytes_total;
 104     } total_xsw = {0, 0};
 105
 106     // NEEDED BY: do_swapio, do_ram
 107     struct vmmeter vmmeter_data;
 108
 109     // NEEDED BY: do_ram
 110     int vfs_bufspace_count;
 111
 112     // NEEDED BY: do_ipc_semaphores
 113     struct ipc_sem {
 114         int semmni;
 115         collected_number sets;
 116         collected_number semaphores;
 117     } ipc_sem = {0, 0, 0};
 118     static struct semid_kernel *ipc_sem_data = NULL;
 119
 120     // NEEDED BY: do_ipc_shared_mem
 121     struct ipc_shm {
 122         u_long shmmni;
 123         collected_number segs;
 124         collected_number segsize;
 125     } ipc_shm = {0, 0, 0};
 126     static struct shmid_kernel *ipc_shm_data = NULL;
 127
 128     // NEEDED BY: do_ipc_msg_queues
 129     struct ipc_msq {
 130         int msgmni;
 131         collected_number queues;
 132         collected_number messages;
 133         collected_number usedsize;
 134         collected_number allocsize;
 135     } ipc_msq = {0, 0, 0, 0, 0};
 136     static struct msqid_kernel *ipc_msq_data = NULL;
 137
 138     // --------------------------------------------------------------------
 139
 140     if (last_loadavg_usec <= dt) {
 141         if (likely(do_loadavg)) {
 142             if (unlikely(GETSYSCTL("vm.loadavg", sysload))) {
 143                 do_loadavg = 0;
 144                 error("DISABLED: system.load");
 145             } else {
 146
 147                 st = rrdset_find_bytype("system", "load");
 148                 if (unlikely(!st)) {
 149                     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);
 150                     rrddim_add(st, "load1", NULL, 1, 1000, RRDDIM_ABSOLUTE);
 151                     rrddim_add(st, "load5", NULL, 1, 1000, RRDDIM_ABSOLUTE);
 152                     rrddim_add(st, "load15", NULL, 1, 1000, RRDDIM_ABSOLUTE);
 153                 }
 154                 else rrdset_next(st);
 155
 156                 rrddim_set(st, "load1", (collected_number) ((double)sysload.ldavg[0] / sysload.fscale * 1000));
 157                 rrddim_set(st, "load5", (collected_number) ((double)sysload.ldavg[1] / sysload.fscale * 1000));
 158                 rrddim_set(st, "load15", (collected_number) ((double)sysload.ldavg[2] / sysload.fscale * 1000));
 159                 rrdset_done(st);
 160             }
 161         }
 162
 163         last_loadavg_usec = st->update_every * USEC_PER_SEC;
 164     }
 165     else last_loadavg_usec -= dt;
 166
 167     // --------------------------------------------------------------------
 168
 169     if (likely(do_all_processes | do_processes | do_committed)) {
 170         if (unlikely(GETSYSCTL("vm.vmtotal", vmtotal_data))) {
 171             do_all_processes = 0;
 172             error("DISABLED: system.active_processes");
 173             do_processes = 0;
 174             error("DISABLED: system.processes");
 175             do_committed = 0;
 176             error("DISABLED: mem.committed");
 177         } else {
 178             if (likely(do_all_processes)) {
 179
 180                 st = rrdset_find_bytype("system", "active_processes");
 181                 if (unlikely(!st)) {
 182                     st = rrdset_create("system", "active_processes", NULL, "processes", NULL, "System Active Processes", "processes", 750, update_every, RRDSET_TYPE_LINE);
 183                     rrddim_add(st, "active", NULL, 1, 1, RRDDIM_ABSOLUTE);
 184                 }
 185                 else rrdset_next(st);
 186
 187                 rrddim_set(st, "active", (vmtotal_data.t_rq + vmtotal_data.t_dw + vmtotal_data.t_pw + vmtotal_data.t_sl + vmtotal_data.t_sw));
 188                 rrdset_done(st);
 189             }
 190
 191             // --------------------------------------------------------------------
 192
 193             if (likely(do_processes)) {
 194
 195                 st = rrdset_find_bytype("system", "processes");
 196                 if (unlikely(!st)) {
 197                     st = rrdset_create("system", "processes", NULL, "processes", NULL, "System Processes", "processes", 600, update_every, RRDSET_TYPE_LINE);
 198
 199                     rrddim_add(st, "running", NULL, 1, 1, RRDDIM_ABSOLUTE);
 200                     rrddim_add(st, "blocked", NULL, -1, 1, RRDDIM_ABSOLUTE);
 201                 }
 202                 else rrdset_next(st);
 203
 204                 rrddim_set(st, "running", vmtotal_data.t_rq);
 205                 rrddim_set(st, "blocked", (vmtotal_data.t_dw + vmtotal_data.t_pw));
 206                 rrdset_done(st);
 207             }
 208
 209             // --------------------------------------------------------------------
 210
 211             if (likely(do_committed)) {
 212                 st = rrdset_find("mem.committed");
 213                 if (unlikely(!st)) {
 214                     st = rrdset_create("mem", "committed", NULL, "system", NULL, "Committed (Allocated) Memory", "MB", 5000, update_every, RRDSET_TYPE_AREA);
 215                     st->isdetail = 1;
 216
 217                     rrddim_add(st, "Committed_AS", NULL, system_pagesize, 1024, RRDDIM_ABSOLUTE);
 218                 }
 219                 else rrdset_next(st);
 220
 221                 rrddim_set(st, "Committed_AS", vmtotal_data.t_rm);
 222                 rrdset_done(st);
 223             }
 224         }
 225     }
 226
 227     // --------------------------------------------------------------------
 228
 229     if (likely(do_cpu)) {
 230         if (unlikely(CPUSTATES != 5)) {
 231             error("FREEBSD: There are %d CPU states (5 was expected)", CPUSTATES);
 232             do_cpu = 0;
 233             error("DISABLED: system.cpu");
 234         } else {
 235             if (unlikely(GETSYSCTL("kern.cp_time", cp_time))) {
 236                 do_cpu = 0;
 237                 error("DISABLED: system.cpu");
 238             } else {
 239
 240                 st = rrdset_find_bytype("system", "cpu");
 241                 if (unlikely(!st)) {
 242                     st = rrdset_create("system", "cpu", NULL, "cpu", "system.cpu", "Total CPU utilization", "percentage", 100, update_every, RRDSET_TYPE_STACKED);
 243
 244                     rrddim_add(st, "user", NULL, 1, 1, RRDDIM_PCENT_OVER_DIFF_TOTAL);
 245                     rrddim_add(st, "nice", NULL, 1, 1, RRDDIM_PCENT_OVER_DIFF_TOTAL);
 246                     rrddim_add(st, "system", NULL, 1, 1, RRDDIM_PCENT_OVER_DIFF_TOTAL);
 247                     rrddim_add(st, "interrupt", NULL, 1, 1, RRDDIM_PCENT_OVER_DIFF_TOTAL);
 248                     rrddim_add(st, "idle", NULL, 1, 1, RRDDIM_PCENT_OVER_DIFF_TOTAL);
 249                     rrddim_hide(st, "idle");
 250                 }
 251                 else rrdset_next(st);
 252
 253                 rrddim_set(st, "user", cp_time[0]);
 254                 rrddim_set(st, "nice", cp_time[1]);
 255                 rrddim_set(st, "system", cp_time[2]);
 256                 rrddim_set(st, "interrupt", cp_time[3]);
 257                 rrddim_set(st, "idle", cp_time[4]);
 258                 rrdset_done(st);
 259             }
 260         }
 261     }
 262
 263     // --------------------------------------------------------------------
 264
 265     if (likely(do_cpu_cores)) {
 266         if (unlikely(CPUSTATES != 5)) {
 267             error("FREEBSD: There are %d CPU states (5 was expected)", CPUSTATES);
 268             do_cpu_cores = 0;
 269             error("DISABLED: cpu.cpuXX");
 270         } else {
 271             if (unlikely(GETSYSCTL("kern.smp.cpus", ncpus))) {
 272                 do_cpu_cores = 0;
 273                 error("DISABLED: cpu.cpuXX");
 274             } else {
 275                 pcpu_cp_time = reallocz(pcpu_cp_time, sizeof(cp_time) * ncpus);
 276
 277                 for (i = 0; i < ncpus; i++) {
 278                     if (unlikely(getsysctl("kern.cp_times", pcpu_cp_time, sizeof(cp_time) * ncpus))) {
 279                         do_cpu_cores = 0;
 280                         error("DISABLED: cpu.cpuXX");
 281                         break;
 282                     }
 283                     if (unlikely(ncpus > 9999)) {
 284                         error("FREEBSD: There are more than 4 digits in cpu cores number");
 285                         do_cpu_cores = 0;
 286                         error("DISABLED: cpu.cpuXX");
 287                         break;
 288                     }
 289                     snprintfz(cpuid, 8, "cpu%d", i);
 290
 291                     st = rrdset_find_bytype("cpu", cpuid);
 292                     if (unlikely(!st)) {
 293                         st = rrdset_create("cpu", cpuid, NULL, "utilization", "cpu.cpu", "Core utilization", "percentage", 1000, update_every, RRDSET_TYPE_STACKED);
 294
 295                         rrddim_add(st, "user", NULL, 1, 1, RRDDIM_PCENT_OVER_DIFF_TOTAL);
 296                         rrddim_add(st, "nice", NULL, 1, 1, RRDDIM_PCENT_OVER_DIFF_TOTAL);
 297                         rrddim_add(st, "system", NULL, 1, 1, RRDDIM_PCENT_OVER_DIFF_TOTAL);
 298                         rrddim_add(st, "interrupt", NULL, 1, 1, RRDDIM_PCENT_OVER_DIFF_TOTAL);
 299                         rrddim_add(st, "idle", NULL, 1, 1, RRDDIM_PCENT_OVER_DIFF_TOTAL);
 300                         rrddim_hide(st, "idle");
 301                     }
 302                     else rrdset_next(st);
 303
 304                     rrddim_set(st, "user", pcpu_cp_time[i * 5 + 0]);
 305                     rrddim_set(st, "nice", pcpu_cp_time[i * 5 + 1]);
 306                     rrddim_set(st, "system", pcpu_cp_time[i * 5 + 2]);
 307                     rrddim_set(st, "interrupt", pcpu_cp_time[i * 5 + 3]);
 308                     rrddim_set(st, "idle", pcpu_cp_time[i * 5 + 4]);
 309                     rrdset_done(st);
 310                 }
 311             }
 312         }
 313     }
 314
 315     // --------------------------------------------------------------------
 316
 317     if (likely(do_interrupts)) {
 318         if (unlikely(sysctlbyname("hw.intrcnt", NULL, &intrcnt_size, NULL, 0) == -1)) {
 319             error("FREEBSD: sysctl(hw.intrcnt...) failed: %s", strerror(errno));
 320             do_interrupts = 0;
 321             error("DISABLED: system.intr");
 322         } else {
 323             nintr = intrcnt_size / sizeof(u_long);
 324             intrcnt = reallocz(intrcnt, nintr * sizeof(u_long));
 325             if (unlikely(getsysctl("hw.intrcnt", intrcnt, nintr * sizeof(u_long)))){
 326                 do_interrupts = 0;
 327                 error("DISABLED: system.intr");
 328             } else {
 329                 for (i = 0; i < nintr; i++)
 330                     totalintr += intrcnt[i];
 331
 332                 st = rrdset_find_bytype("system", "intr");
 333                 if (unlikely(!st)) {
 334                     st = rrdset_create("system", "intr", NULL, "interrupts", NULL, "Total Device Interrupts", "interrupts/s", 900, update_every, RRDSET_TYPE_LINE);
 335                     st->isdetail = 1;
 336
 337                     rrddim_add(st, "interrupts", NULL, 1, 1, RRDDIM_INCREMENTAL);
 338                 }
 339                 else rrdset_next(st);
 340
 341                 rrddim_set(st, "interrupts", totalintr);
 342                 rrdset_done(st);
 343             }
 344         }
 345     }
 346
 347     // --------------------------------------------------------------------
 348
 349     if (likely(do_context)) {
 350         if (unlikely(GETSYSCTL("vm.stats.sys.v_swtch", u_int_data))) {
 351             do_context = 0;
 352             error("DISABLED: system.ctxt");
 353         } else {
 354
 355             st = rrdset_find_bytype("system", "ctxt");
 356             if (unlikely(!st)) {
 357                 st = rrdset_create("system", "ctxt", NULL, "processes", NULL, "CPU Context Switches", "context switches/s", 800, update_every, RRDSET_TYPE_LINE);
 358
 359                 rrddim_add(st, "switches", NULL, 1, 1, RRDDIM_INCREMENTAL);
 360             }
 361             else rrdset_next(st);
 362
 363             rrddim_set(st, "switches", u_int_data);
 364             rrdset_done(st);
 365         }
 366     }
 367
 368     // --------------------------------------------------------------------
 369
 370     if (likely(do_forks)) {
 371         if (unlikely(GETSYSCTL("vm.stats.vm.v_forks", u_int_data))) {
 372             do_forks = 0;
 373             error("DISABLED: system.forks");
 374         } else {
 375
 376             st = rrdset_find_bytype("system", "forks");
 377             if (unlikely(!st)) {
 378                 st = rrdset_create("system", "forks", NULL, "processes", NULL, "Started Processes", "processes/s", 700, update_every, RRDSET_TYPE_LINE);
 379                 st->isdetail = 1;
 380
 381                 rrddim_add(st, "started", NULL, 1, 1, RRDDIM_INCREMENTAL);
 382             }
 383             else rrdset_next(st);
 384
 385             rrddim_set(st, "started", u_int_data);
 386             rrdset_done(st);
 387         }
 388     }
 389
 390     // --------------------------------------------------------------------
 391
 392     if (likely(do_disk_io)) {
 393         if (unlikely(GETSYSCTL("kern.devstat.numdevs", numdevs))) {
 394             do_disk_io = 0;
 395             error("DISABLED: disk.io");
 396         } else {
 397             devstat_data = reallocz(devstat_data, sizeof(long) + sizeof(struct devstat) * numdevs); // there is generation number before devstat structures
 398             if (unlikely(getsysctl("kern.devstat.all", devstat_data, sizeof(long) + sizeof(struct devstat) * numdevs))) {
 399                 do_disk_io = 0;
 400                 error("DISABLED: disk.io");
 401             } else {
 402                 dstat = devstat_data + sizeof(long); // skip generation number
 403                 collected_number total_disk_reads = 0;
 404                 collected_number total_disk_writes = 0;
 405
 406                 for (i = 0; i < numdevs; i++) {
 407                     if ((dstat[i].device_type == (DEVSTAT_TYPE_IF_SCSI | DEVSTAT_TYPE_DIRECT)) || (dstat[i].device_type == (DEVSTAT_TYPE_IF_IDE | DEVSTAT_TYPE_DIRECT))) {
 408
 409                         // --------------------------------------------------------------------
 410
 411                         st = rrdset_find_bytype(RRD_TYPE_DISK, dstat[i].device_name);
 412                         if (unlikely(!st)) {
 413                             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);
 414
 415                             rrddim_add(st, "reads", NULL, 1, 1024, RRDDIM_INCREMENTAL);
 416                             rrddim_add(st, "writes", NULL, -1, 1024, RRDDIM_INCREMENTAL);
 417                         }
 418                         else rrdset_next(st);
 419
 420                         total_disk_reads += dstat[i].bytes[DEVSTAT_READ];
 421                         total_disk_writes += dstat[i].bytes[DEVSTAT_WRITE];
 422                         prev_dstat.bytes_read = rrddim_set(st, "reads", dstat[i].bytes[DEVSTAT_READ]);
 423                         prev_dstat.bytes_write = rrddim_set(st, "writes", dstat[i].bytes[DEVSTAT_WRITE]);
 424                         rrdset_done(st);
 425
 426                         // --------------------------------------------------------------------
 427
 428                         st = rrdset_find_bytype("disk_ops", dstat[i].device_name);
 429                         if (unlikely(!st)) {
 430                             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);
 431                             st->isdetail = 1;
 432
 433                             rrddim_add(st, "reads", NULL, 1, 1, RRDDIM_INCREMENTAL);
 434                             rrddim_add(st, "writes", NULL, -1, 1, RRDDIM_INCREMENTAL);
 435                         }
 436                         else rrdset_next(st);
 437
 438                         prev_dstat.operations_read = rrddim_set(st, "reads", dstat[i].operations[DEVSTAT_READ]);
 439                         prev_dstat.operations_write = rrddim_set(st, "writes", dstat[i].operations[DEVSTAT_WRITE]);
 440                         rrdset_done(st);
 441
 442                         // --------------------------------------------------------------------
 443
 444                         st = rrdset_find_bytype("disk_qops", dstat[i].device_name);
 445                         if (unlikely(!st)) {
 446                             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);
 447                             st->isdetail = 1;
 448
 449                             rrddim_add(st, "operations", NULL, 1, 1, RRDDIM_ABSOLUTE);
 450                         }
 451                         else rrdset_next(st);
 452
 453                         rrddim_set(st, "operations", dstat[i].start_count - dstat[i].end_count);
 454                         rrdset_done(st);
 455
 456                         // --------------------------------------------------------------------
 457
 458                         st = rrdset_find_bytype("disk_util", dstat[i].device_name);
 459                         if (unlikely(!st)) {
 460                             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);
 461                             st->isdetail = 1;
 462
 463                             rrddim_add(st, "utilization", NULL, 1, 10, RRDDIM_INCREMENTAL);
 464                         }
 465                         else rrdset_next(st);
 466
 467                         cur_dstat.busy_time_ms = dstat[i].busy_time.sec * 1000 + dstat[i].busy_time.frac * BINTIME_SCALE;
 468                         prev_dstat.busy_time_ms = rrddim_set(st, "utilization", cur_dstat.busy_time_ms);
 469                         rrdset_done(st);
 470
 471                         // --------------------------------------------------------------------
 472
 473                         st = rrdset_find_bytype("disk_iotime", dstat[i].device_name);
 474                         if (unlikely(!st)) {
 475                             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);
 476                             st->isdetail = 1;
 477
 478                             rrddim_add(st, "reads", NULL, 1, 1, RRDDIM_INCREMENTAL);
 479                             rrddim_add(st, "writes", NULL, -1, 1, RRDDIM_INCREMENTAL);
 480                         }
 481                         else rrdset_next(st);
 482
 483                         cur_dstat.duration_read_ms = dstat[i].duration[DEVSTAT_READ].sec * 1000 + dstat[i].duration[DEVSTAT_READ].frac * BINTIME_SCALE;
 484                         cur_dstat.duration_write_ms = dstat[i].duration[DEVSTAT_WRITE].sec * 1000 + dstat[i].duration[DEVSTAT_READ].frac * BINTIME_SCALE;
 485                         prev_dstat.duration_read_ms = rrddim_set(st, "reads", cur_dstat.duration_read_ms);
 486                         prev_dstat.duration_write_ms = rrddim_set(st, "writes", cur_dstat.duration_write_ms);
 487                         rrdset_done(st);
 488
 489                         // --------------------------------------------------------------------
 490                         // calculate differential charts
 491                         // only if this is not the first time we run
 492
 493                         if (likely(dt)) {
 494
 495                             // --------------------------------------------------------------------
 496
 497                             st = rrdset_find_bytype("disk_await", dstat[i].device_name);
 498                             if (unlikely(!st)) {
 499                                 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);
 500                                 st->isdetail = 1;
 501
 502                                 rrddim_add(st, "reads", NULL, 1, 1, RRDDIM_ABSOLUTE);
 503                                 rrddim_add(st, "writes", NULL, -1, 1, RRDDIM_ABSOLUTE);
 504                             }
 505                             else rrdset_next(st);
 506
 507                             rrddim_set(st, "reads", (dstat[i].operations[DEVSTAT_READ] - prev_dstat.operations_read) ?
 508                                 (cur_dstat.duration_read_ms - prev_dstat.duration_read_ms) / (dstat[i].operations[DEVSTAT_READ] - prev_dstat.operations_read) : 0);
 509                             rrddim_set(st, "writes", (dstat[i].operations[DEVSTAT_WRITE] - prev_dstat.operations_write) ?
 510                                 (cur_dstat.duration_write_ms - prev_dstat.duration_write_ms) / (dstat[i].operations[DEVSTAT_WRITE] - prev_dstat.operations_write) : 0);
 511                             rrdset_done(st);
 512
 513                             // --------------------------------------------------------------------
 514
 515                             st = rrdset_find_bytype("disk_avgsz", dstat[i].device_name);
 516                             if (unlikely(!st)) {
 517                                 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);
 518                                 st->isdetail = 1;
 519
 520                                 rrddim_add(st, "reads", NULL, 1, 1024, RRDDIM_ABSOLUTE);
 521                                 rrddim_add(st, "writes", NULL, -1, 1024, RRDDIM_ABSOLUTE);
 522                             }
 523                             else rrdset_next(st);
 524
 525                             rrddim_set(st, "reads", (dstat[i].operations[DEVSTAT_READ] - prev_dstat.operations_read) ?
 526                                 (dstat[i].bytes[DEVSTAT_READ] - prev_dstat.bytes_read) / (dstat[i].operations[DEVSTAT_READ] - prev_dstat.operations_read) : 0);
 527                             rrddim_set(st, "writes", (dstat[i].operations[DEVSTAT_WRITE] - prev_dstat.operations_write) ?
 528                                 (dstat[i].bytes[DEVSTAT_WRITE] - prev_dstat.bytes_write) / (dstat[i].operations[DEVSTAT_WRITE] - prev_dstat.operations_write) : 0);
 529                             rrdset_done(st);
 530
 531                             // --------------------------------------------------------------------
 532
 533                             st = rrdset_find_bytype("disk_svctm", dstat[i].device_name);
 534                             if (unlikely(!st)) {
 535                                 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);
 536                                 st->isdetail = 1;
 537
 538                                 rrddim_add(st, "svctm", NULL, 1, 1, RRDDIM_ABSOLUTE);
 539                             }
 540                             else rrdset_next(st);
 541
 542                             rrddim_set(st, "svctm", ((dstat[i].operations[DEVSTAT_READ] - prev_dstat.operations_read) + (dstat[i].operations[DEVSTAT_WRITE] - prev_dstat.operations_write)) ?
 543                                 (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);
 544                             rrdset_done(st);
 545                         }
 546                     }
 547
 548                     // --------------------------------------------------------------------
 549
 550                     st = rrdset_find_bytype("system", "io");
 551                     if (unlikely(!st)) {
 552                         st = rrdset_create("system", "io", NULL, "disk", NULL, "Disk I/O", "kilobytes/s", 150, update_every, RRDSET_TYPE_AREA);
 553                         rrddim_add(st, "in",  NULL,  1, 1024, RRDDIM_INCREMENTAL);
 554                         rrddim_add(st, "out", NULL, -1, 1024, RRDDIM_INCREMENTAL);
 555                     }
 556                     else rrdset_next(st);
 557
 558                     rrddim_set(st, "in", total_disk_reads);
 559                     rrddim_set(st, "out", total_disk_writes);
 560                     rrdset_done(st);
 561                 }
 562             }
 563         }
 564     }
 565
 566     // --------------------------------------------------------------------
 567
 568
 569     if (likely(do_swap)) {
 570         mibsize = sizeof mib / sizeof mib[0];
 571         if (unlikely(sysctlnametomib("vm.swap_info", mib, &mibsize) == -1)) {
 572             error("FREEBSD: sysctl(%s...) failed: %s", "vm.swap_info", strerror(errno));
 573             do_swap = 0;
 574             error("DISABLED: disk.io");
 575         } else {
 576             for (i = 0; ; i++) {
 577                 mib[mibsize] = i;
 578                 size = sizeof(xsw);
 579                 if (unlikely(sysctl(mib, mibsize + 1, &xsw, &size, NULL, 0) == -1 )) {
 580                     if (unlikely(errno != ENOENT)) {
 581                         error("FREEBSD: sysctl(%s...) failed: %s", "vm.swap_info", strerror(errno));
 582                         do_swap = 0;
 583                         error("DISABLED: disk.io");
 584                     } else {
 585                         if (unlikely(size != sizeof(xsw))) {
 586                             error("FREEBSD: sysctl(%s...) expected %lu, got %lu", "vm.swap_info", (unsigned long)sizeof(xsw), (unsigned long)size);
 587                             do_swap = 0;
 588                             error("DISABLED: disk.io");
 589                         } else break;
 590                     }
 591                 }
 592                 total_xsw.bytes_used += xsw.xsw_used * system_pagesize;
 593                 total_xsw.bytes_total += xsw.xsw_nblks * system_pagesize;
 594             }
 595
 596             if (likely(do_swap)) {
 597                 st = rrdset_find("system.swap");
 598                 if (unlikely(!st)) {
 599                     st = rrdset_create("system", "swap", NULL, "swap", NULL, "System Swap", "MB", 201, update_every, RRDSET_TYPE_STACKED);
 600                     st->isdetail = 1;
 601
 602                     rrddim_add(st, "free",    NULL, 1, 1048576, RRDDIM_ABSOLUTE);
 603                     rrddim_add(st, "used",    NULL, 1, 1048576, RRDDIM_ABSOLUTE);
 604                 }
 605                 else rrdset_next(st);
 606
 607                 rrddim_set(st, "used", total_xsw.bytes_used);
 608                 rrddim_set(st, "free", total_xsw.bytes_total - total_xsw.bytes_used);
 609                 rrdset_done(st);
 610             }
 611         }
 612     }
 613
 614     // --------------------------------------------------------------------
 615
 616     if (likely(do_ram)) {
 617         if (unlikely(GETSYSCTL("vm.stats.vm.v_active_count",    vmmeter_data.v_active_count) ||
 618                      GETSYSCTL("vm.stats.vm.v_inactive_count",  vmmeter_data.v_inactive_count) ||
 619                      GETSYSCTL("vm.stats.vm.v_wire_count",      vmmeter_data.v_wire_count) ||
 620                      GETSYSCTL("vm.stats.vm.v_cache_count",     vmmeter_data.v_cache_count) ||
 621                      GETSYSCTL("vfs.bufspace",                  vfs_bufspace_count) ||
 622                      GETSYSCTL("vm.stats.vm.v_free_count",      vmmeter_data.v_free_count))) {
 623             do_swapio = 0;
 624             error("DISABLED: system.swapio");
 625         } else {
 626             st = rrdset_find("system.ram");
 627             if (unlikely(!st)) {
 628                 st = rrdset_create("system", "ram", NULL, "ram", NULL, "System RAM", "MB", 200, update_every, RRDSET_TYPE_STACKED);
 629
 630                 rrddim_add(st, "active",    NULL, system_pagesize, 1024, RRDDIM_ABSOLUTE);
 631                 rrddim_add(st, "inactive",  NULL, system_pagesize, 1024, RRDDIM_ABSOLUTE);
 632                 rrddim_add(st, "wired",     NULL, system_pagesize, 1024, RRDDIM_ABSOLUTE);
 633                 rrddim_add(st, "cache",     NULL, system_pagesize, 1024, RRDDIM_ABSOLUTE);
 634                 rrddim_add(st, "buffers",   NULL, 1, 1024, RRDDIM_ABSOLUTE);
 635                 rrddim_add(st, "free",      NULL, system_pagesize, 1024, RRDDIM_ABSOLUTE);
 636             }
 637             else rrdset_next(st);
 638
 639             rrddim_set(st, "active",    vmmeter_data.v_active_count);
 640             rrddim_set(st, "inactive",  vmmeter_data.v_inactive_count);
 641             rrddim_set(st, "wired",     vmmeter_data.v_wire_count);
 642             rrddim_set(st, "cache",     vmmeter_data.v_cache_count);
 643             rrddim_set(st, "buffers",   vfs_bufspace_count);
 644             rrddim_set(st, "free",      vmmeter_data.v_free_count);
 645             rrdset_done(st);
 646         }
 647     }
 648
 649     // --------------------------------------------------------------------
 650
 651     if (likely(do_swapio)) {
 652         if (unlikely(GETSYSCTL("vm.stats.vm.v_swappgsin", vmmeter_data.v_swappgsin) || GETSYSCTL("vm.stats.vm.v_vnodepgsout", vmmeter_data.v_swappgsout))) {
 653             do_swapio = 0;
 654             error("DISABLED: system.swapio");
 655         } else {
 656             st = rrdset_find("system.swapio");
 657             if (unlikely(!st)) {
 658                 st = rrdset_create("system", "swapio", NULL, "swap", NULL, "Swap I/O", "kilobytes/s", 250, update_every, RRDSET_TYPE_AREA);
 659
 660                 rrddim_add(st, "in",  NULL, system_pagesize, 1024, RRDDIM_INCREMENTAL);
 661                 rrddim_add(st, "out", NULL, -system_pagesize, 1024, RRDDIM_INCREMENTAL);
 662             }
 663             else rrdset_next(st);
 664
 665             rrddim_set(st, "in", vmmeter_data.v_swappgsin);
 666             rrddim_set(st, "out", vmmeter_data.v_swappgsout);
 667             rrdset_done(st);
 668         }
 669     }
 670
 671     // --------------------------------------------------------------------
 672
 673     if (likely(do_pgfaults)) {
 674         if (unlikely(GETSYSCTL("vm.stats.vm.v_vm_faults",   vmmeter_data.v_vm_faults) ||
 675                      GETSYSCTL("vm.stats.vm.v_io_faults",   vmmeter_data.v_io_faults) ||
 676                      GETSYSCTL("vm.stats.vm.v_cow_faults",  vmmeter_data.v_cow_faults) ||
 677                      GETSYSCTL("vm.stats.vm.v_cow_optim",   vmmeter_data.v_cow_optim) ||
 678                      GETSYSCTL("vm.stats.vm.v_intrans",     vmmeter_data.v_intrans))) {
 679             do_pgfaults = 0;
 680             error("DISABLED: mem.pgfaults");
 681         } else {
 682             st = rrdset_find("mem.pgfaults");
 683             if (unlikely(!st)) {
 684                 st = rrdset_create("mem", "pgfaults", NULL, "system", NULL, "Memory Page Faults", "page faults/s", 500, update_every, RRDSET_TYPE_LINE);
 685                 st->isdetail = 1;
 686
 687                 rrddim_add(st, "memory", NULL, 1, 1, RRDDIM_INCREMENTAL);
 688                 rrddim_add(st, "io_requiring", NULL, 1, 1, RRDDIM_INCREMENTAL);
 689                 rrddim_add(st, "cow", NULL, 1, 1, RRDDIM_INCREMENTAL);
 690                 rrddim_add(st, "cow_optimized", NULL, 1, 1, RRDDIM_INCREMENTAL);
 691                 rrddim_add(st, "in_transit", NULL, 1, 1, RRDDIM_INCREMENTAL);
 692             }
 693             else rrdset_next(st);
 694
 695             rrddim_set(st, "memory", vmmeter_data.v_vm_faults);
 696             rrddim_set(st, "io_requiring", vmmeter_data.v_io_faults);
 697             rrddim_set(st, "cow", vmmeter_data.v_cow_faults);
 698             rrddim_set(st, "cow_optimized", vmmeter_data.v_cow_optim);
 699             rrddim_set(st, "in_transit", vmmeter_data.v_intrans);
 700             rrdset_done(st);
 701         }
 702     }
 703
 704     // --------------------------------------------------------------------
 705
 706     if (likely(do_ipc_semaphores)) {
 707         if (unlikely(GETSYSCTL("kern.ipc.semmni", ipc_sem.semmni))) {
 708             do_ipc_semaphores = 0;
 709             error("DISABLED: system.ipc_semaphores");
 710             error("DISABLED: system.ipc_semaphore_arrays");
 711         } else {
 712             ipc_sem_data = reallocz(ipc_sem_data, sizeof(struct semid_kernel) * ipc_sem.semmni);
 713             if (unlikely(getsysctl("kern.ipc.sema", ipc_sem_data, sizeof(struct semid_kernel) * ipc_sem.semmni))) {
 714                 do_ipc_semaphores = 0;
 715                 error("DISABLED: system.ipc_semaphores");
 716                 error("DISABLED: system.ipc_semaphore_arrays");
 717             } else {
 718                 for (i = 0; i < ipc_sem.semmni; i++) {
 719                     if (unlikely(ipc_sem_data[i].u.sem_perm.mode & SEM_ALLOC)) {
 720                         ipc_sem.sets += 1;
 721                         ipc_sem.semaphores += ipc_sem_data[i].u.sem_nsems;
 722                     }
 723                 }
 724
 725                 // --------------------------------------------------------------------
 726
 727                 st = rrdset_find("system.ipc_semaphores");
 728                 if (unlikely(!st)) {
 729                     st = rrdset_create("system", "ipc_semaphores", NULL, "ipc semaphores", NULL, "IPC Semaphores", "semaphores", 1000, rrd_update_every, RRDSET_TYPE_AREA);
 730                     rrddim_add(st, "semaphores", NULL, 1, 1, RRDDIM_ABSOLUTE);
 731                 }
 732                 else rrdset_next(st);
 733
 734                 rrddim_set(st, "semaphores", ipc_sem.semaphores);
 735                 rrdset_done(st);
 736
 737                 // --------------------------------------------------------------------
 738
 739                 st = rrdset_find("system.ipc_semaphore_arrays");
 740                 if (unlikely(!st)) {
 741                     st = rrdset_create("system", "ipc_semaphore_arrays", NULL, "ipc semaphores", NULL, "IPC Semaphore Arrays", "arrays", 1000, rrd_update_every, RRDSET_TYPE_AREA);
 742                     rrddim_add(st, "arrays", NULL, 1, 1, RRDDIM_ABSOLUTE);
 743                 }
 744                 else rrdset_next(st);
 745
 746                 rrddim_set(st, "arrays", ipc_sem.sets);
 747                 rrdset_done(st);
 748             }
 749         }
 750     }
 751
 752     // --------------------------------------------------------------------
 753
 754     if (likely(do_ipc_shared_mem)) {
 755         if (unlikely(GETSYSCTL("kern.ipc.shmmni", ipc_shm.shmmni))) {
 756             do_ipc_shared_mem = 0;
 757             error("DISABLED: system.ipc_shared_mem_segs");
 758             error("DISABLED: system.ipc_shared_mem_size");
 759         } else {
 760             ipc_shm_data = reallocz(ipc_shm_data, sizeof(struct shmid_kernel) * ipc_shm.shmmni);
 761             if (unlikely(getsysctl("kern.ipc.shmsegs", ipc_shm_data, sizeof(struct shmid_kernel) * ipc_shm.shmmni))) {
 762                 do_ipc_shared_mem = 0;
 763                 error("DISABLED: system.ipc_shared_mem_segs");
 764                 error("DISABLED: system.ipc_shared_mem_size");
 765             } else {
 766                 for (i = 0; i < ipc_shm.shmmni; i++) {
 767                     if (unlikely(ipc_shm_data[i].u.shm_perm.mode & 0x0800)) {
 768                         ipc_shm.segs += 1;
 769                         ipc_shm.segsize += ipc_shm_data[i].u.shm_segsz;
 770                     }
 771                 }
 772
 773                 // --------------------------------------------------------------------
 774
 775                 st = rrdset_find("system.ipc_shared_mem_segs");
 776                 if (unlikely(!st)) {
 777                     st = rrdset_create("system", "ipc_shared_mem_segs", NULL, "ipc shared memory", NULL, "IPC Shared Memory Segments", "segments", 1000, rrd_update_every, RRDSET_TYPE_AREA);
 778                     rrddim_add(st, "segments", NULL, 1, 1, RRDDIM_ABSOLUTE);
 779                 }
 780                 else rrdset_next(st);
 781
 782                 rrddim_set(st, "segments", ipc_shm.segs);
 783                 rrdset_done(st);
 784
 785                 // --------------------------------------------------------------------
 786
 787                 st = rrdset_find("system.ipc_shared_mem_size");
 788                 if (unlikely(!st)) {
 789                     st = rrdset_create("system", "ipc_shared_mem_size", NULL, "ipc shared memory", NULL, "IPC Shared Memory Segments Size", "kilobytes", 1000, rrd_update_every, RRDSET_TYPE_AREA);
 790                     rrddim_add(st, "allocated", NULL, 1, 1024, RRDDIM_ABSOLUTE);
 791                 }
 792                 else rrdset_next(st);
 793
 794                 rrddim_set(st, "allocated", ipc_shm.segsize);
 795                 rrdset_done(st);
 796             }
 797         }
 798     }
 799
 800        // --------------------------------------------------------------------
 801
 802     if (likely(do_ipc_msg_queues)) {
 803         if (unlikely(GETSYSCTL("kern.ipc.msgmni", ipc_msq.msgmni))) {
 804             do_ipc_msg_queues = 0;
 805             error("DISABLED: system.ipc_msq_queues");
 806             error("DISABLED: system.ipc_msq_messages");
 807             error("DISABLED: system.ipc_msq_used_size");
 808             error("DISABLED: system.ipc_msq_allocated_size");
 809         } else {
 810             ipc_msq_data = reallocz(ipc_msq_data, sizeof(struct msqid_kernel) * ipc_msq.msgmni);
 811             if (unlikely(getsysctl("kern.ipc.msqids", ipc_msq_data, sizeof(struct msqid_kernel) * ipc_msq.msgmni))) {
 812                 do_ipc_msg_queues = 0;
 813                 error("DISABLED: system.ipc_msq_queues");
 814                 error("DISABLED: system.ipc_msq_messages");
 815                 error("DISABLED: system.ipc_msq_used_size");
 816                 error("DISABLED: system.ipc_msq_allocated_size");
 817             } else {
 818                 for (i = 0; i < ipc_msq.msgmni; i++) {
 819                     if (unlikely(ipc_msq_data[i].u.msg_qbytes != 0)) {
 820                         ipc_msq.queues += 1;
 821                         ipc_msq.messages += ipc_msq_data[i].u.msg_qnum;
 822                         ipc_msq.usedsize += ipc_msq_data[i].u.msg_cbytes;
 823                         ipc_msq.allocsize += ipc_msq_data[i].u.msg_qbytes;
 824                     }
 825                 }
 826
 827                 // --------------------------------------------------------------------
 828
 829                 st = rrdset_find("system.ipc_msq_queues");
 830                 if (unlikely(!st)) {
 831                     st = rrdset_create("system", "ipc_msq_queues", NULL, "ipc message queues", NULL, "Number of IPC Message Queues", "queues", 1000, rrd_update_every, RRDSET_TYPE_AREA);
 832                     rrddim_add(st, "queues", NULL, 1, 1, RRDDIM_ABSOLUTE);
 833                 }
 834                 else rrdset_next(st);
 835
 836                 rrddim_set(st, "queues", ipc_msq.queues);
 837                 rrdset_done(st);
 838
 839                 // --------------------------------------------------------------------
 840
 841                 st = rrdset_find("system.ipc_msq_messages");
 842                 if (unlikely(!st)) {
 843                     st = rrdset_create("system", "ipc_msq_messages", NULL, "ipc message queues", NULL, "Number of Messages in IPC Message Queues", "messages", 1000, rrd_update_every, RRDSET_TYPE_AREA);
 844                     rrddim_add(st, "messages", NULL, 1, 1, RRDDIM_ABSOLUTE);
 845                 }
 846                 else rrdset_next(st);
 847
 848                 rrddim_set(st, "messages", ipc_msq.messages);
 849                 rrdset_done(st);
 850
 851                 // --------------------------------------------------------------------
 852
 853                 st = rrdset_find("system.ipc_msq_used_size");
 854                 if (unlikely(!st)) {
 855                     st = rrdset_create("system", "ipc_msq_used_size", NULL, "ipc message queues", NULL, "Number of used bytes in IPC Message Queues", "bytes", 1000, rrd_update_every, RRDSET_TYPE_AREA);
 856                     rrddim_add(st, "used", NULL, 1, 1, RRDDIM_ABSOLUTE);
 857                 }
 858                 else rrdset_next(st);
 859
 860                 rrddim_set(st, "used", ipc_msq.usedsize);
 861                 rrdset_done(st);
 862
 863
 864                 // --------------------------------------------------------------------
 865
 866                 st = rrdset_find("system.ipc_msq_allocated_size");
 867                 if (unlikely(!st)) {
 868                     st = rrdset_create("system", "ipc_msq_allocated_size", NULL, "ipc message queues", NULL, "Maximum size of IPC Message Queues", "bytes", 1000, rrd_update_every, RRDSET_TYPE_AREA);
 869                     rrddim_add(st, "allocated", NULL, 1, 1, RRDDIM_ABSOLUTE);
 870                 }
 871                 else rrdset_next(st);
 872
 873                 rrddim_set(st, "allocated", ipc_msq.allocsize);
 874                 rrdset_done(st);
 875             }
 876         }
 877     }
 878
 879     return 0;
 880 }