1 /* 2 * Copyright (c) 1980, 1986, 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #ifndef lint 31 static const char copyright[] = 32 "@(#) Copyright (c) 1980, 1986, 1991, 1993\n\ 33 The Regents of the University of California. All rights reserved.\n"; 34 #endif /* not lint */ 35 36 #if 0 37 #ifndef lint 38 static char sccsid[] = "@(#)vmstat.c 8.1 (Berkeley) 6/6/93"; 39 #endif /* not lint */ 40 #endif 41 42 #include <sys/cdefs.h> 43 __FBSDID("$FreeBSD$"); 44 45 #include <sys/param.h> 46 #include <sys/proc.h> 47 #include <sys/uio.h> 48 #include <sys/namei.h> 49 #include <sys/malloc.h> 50 #include <sys/signal.h> 51 #include <sys/fcntl.h> 52 #include <sys/ioctl.h> 53 #include <sys/resource.h> 54 #include <sys/sysctl.h> 55 #include <sys/time.h> 56 #include <sys/user.h> 57 #define _WANT_VMMETER 58 #include <sys/vmmeter.h> 59 #include <sys/pcpu.h> 60 61 #include <vm/vm_param.h> 62 63 #include <ctype.h> 64 #include <devstat.h> 65 #include <err.h> 66 #include <errno.h> 67 #include <inttypes.h> 68 #include <kvm.h> 69 #include <limits.h> 70 #include <memstat.h> 71 #include <nlist.h> 72 #include <paths.h> 73 #include <stdio.h> 74 #include <stdlib.h> 75 #include <string.h> 76 #include <sysexits.h> 77 #include <time.h> 78 #include <unistd.h> 79 #include <libutil.h> 80 #include <libxo/xo.h> 81 82 #define VMSTAT_XO_VERSION "1" 83 84 static char da[] = "da"; 85 86 static struct nlist namelist[] = { 87 #define X_SUM 0 88 { "_vm_cnt" }, 89 #define X_HZ 1 90 { "_hz" }, 91 #define X_STATHZ 2 92 { "_stathz" }, 93 #define X_NCHSTATS 3 94 { "_nchstats" }, 95 #define X_INTRNAMES 4 96 { "_intrnames" }, 97 #define X_SINTRNAMES 5 98 { "_sintrnames" }, 99 #define X_INTRCNT 6 100 { "_intrcnt" }, 101 #define X_SINTRCNT 7 102 { "_sintrcnt" }, 103 #ifdef notyet 104 #define X_DEFICIT XXX 105 { "_deficit" }, 106 #define X_REC XXX 107 { "_rectime" }, 108 #define X_PGIN XXX 109 { "_pgintime" }, 110 #define X_XSTATS XXX 111 { "_xstats" }, 112 #define X_END XXX 113 #else 114 #define X_END 8 115 #endif 116 { "" }, 117 }; 118 119 static struct statinfo cur, last; 120 static int num_devices, maxshowdevs; 121 static long generation; 122 static struct device_selection *dev_select; 123 static int num_selected; 124 static struct devstat_match *matches; 125 static int num_matches = 0; 126 static int num_devices_specified, num_selections; 127 static long select_generation; 128 static char **specified_devices; 129 static devstat_select_mode select_mode; 130 131 static struct __vmmeter { 132 uint64_t v_swtch; 133 uint64_t v_trap; 134 uint64_t v_syscall; 135 uint64_t v_intr; 136 uint64_t v_soft; 137 uint64_t v_vm_faults; 138 uint64_t v_io_faults; 139 uint64_t v_cow_faults; 140 uint64_t v_cow_optim; 141 uint64_t v_zfod; 142 uint64_t v_ozfod; 143 uint64_t v_swapin; 144 uint64_t v_swapout; 145 uint64_t v_swappgsin; 146 uint64_t v_swappgsout; 147 uint64_t v_vnodein; 148 uint64_t v_vnodeout; 149 uint64_t v_vnodepgsin; 150 uint64_t v_vnodepgsout; 151 uint64_t v_intrans; 152 uint64_t v_reactivated; 153 uint64_t v_pdwakeups; 154 uint64_t v_pdpages; 155 uint64_t v_pdshortfalls; 156 uint64_t v_dfree; 157 uint64_t v_pfree; 158 uint64_t v_tfree; 159 uint64_t v_forks; 160 uint64_t v_vforks; 161 uint64_t v_rforks; 162 uint64_t v_kthreads; 163 uint64_t v_forkpages; 164 uint64_t v_vforkpages; 165 uint64_t v_rforkpages; 166 uint64_t v_kthreadpages; 167 u_int v_page_size; 168 u_int v_page_count; 169 u_int v_free_reserved; 170 u_int v_free_target; 171 u_int v_free_min; 172 u_int v_free_count; 173 u_int v_wire_count; 174 u_int v_active_count; 175 u_int v_inactive_target; 176 u_int v_inactive_count; 177 u_int v_laundry_count; 178 u_int v_pageout_free_min; 179 u_int v_interrupt_free_min; 180 u_int v_free_severe; 181 } sum, osum; 182 183 #define VMSTAT_DEFAULT_LINES 20 /* Default number of `winlines'. */ 184 volatile sig_atomic_t wresized; /* Tty resized, when non-zero. */ 185 static int winlines = VMSTAT_DEFAULT_LINES; /* Current number of tty rows. */ 186 187 static int aflag; 188 static int nflag; 189 static int Pflag; 190 static int hflag; 191 192 static kvm_t *kd; 193 194 #define FORKSTAT 0x01 195 #define INTRSTAT 0x02 196 #define MEMSTAT 0x04 197 #define SUMSTAT 0x08 198 #define TIMESTAT 0x10 199 #define VMSTAT 0x20 200 #define ZMEMSTAT 0x40 201 #define OBJSTAT 0x80 202 203 static void cpustats(void); 204 static void pcpustats(int, u_long, int); 205 static void devstats(void); 206 static void doforkst(void); 207 static void dointr(unsigned int, int); 208 static void doobjstat(void); 209 static void dosum(void); 210 static void dovmstat(unsigned int, int); 211 static void domemstat_malloc(void); 212 static void domemstat_zone(void); 213 static void kread(int, void *, size_t); 214 static void kreado(int, void *, size_t, size_t); 215 static char *kgetstr(const char *); 216 static void needhdr(int); 217 static void needresize(int); 218 static void doresize(void); 219 static void printhdr(int, u_long); 220 static void usage(void); 221 222 static long pct(long, long); 223 static long long getuptime(void); 224 225 static char **getdrivedata(char **); 226 227 int 228 main(int argc, char *argv[]) 229 { 230 int c, todo; 231 unsigned int interval; 232 float f; 233 int reps; 234 char *memf, *nlistf; 235 char errbuf[_POSIX2_LINE_MAX]; 236 237 memf = nlistf = NULL; 238 interval = reps = todo = 0; 239 maxshowdevs = 2; 240 hflag = isatty(1); 241 242 argc = xo_parse_args(argc, argv); 243 if (argc < 0) 244 return argc; 245 246 while ((c = getopt(argc, argv, "ac:fhHiM:mN:n:oPp:stw:z")) != -1) { 247 switch (c) { 248 case 'a': 249 aflag++; 250 break; 251 case 'c': 252 reps = atoi(optarg); 253 break; 254 case 'P': 255 Pflag++; 256 break; 257 case 'f': 258 todo |= FORKSTAT; 259 break; 260 case 'h': 261 hflag = 1; 262 break; 263 case 'H': 264 hflag = 0; 265 break; 266 case 'i': 267 todo |= INTRSTAT; 268 break; 269 case 'M': 270 memf = optarg; 271 break; 272 case 'm': 273 todo |= MEMSTAT; 274 break; 275 case 'N': 276 nlistf = optarg; 277 break; 278 case 'n': 279 nflag = 1; 280 maxshowdevs = atoi(optarg); 281 if (maxshowdevs < 0) 282 xo_errx(1, "number of devices %d is < 0", 283 maxshowdevs); 284 break; 285 case 'o': 286 todo |= OBJSTAT; 287 break; 288 case 'p': 289 if (devstat_buildmatch(optarg, &matches, &num_matches) != 0) 290 xo_errx(1, "%s", devstat_errbuf); 291 break; 292 case 's': 293 todo |= SUMSTAT; 294 break; 295 case 't': 296 #ifdef notyet 297 todo |= TIMESTAT; 298 #else 299 xo_errx(EX_USAGE, "sorry, -t is not (re)implemented yet"); 300 #endif 301 break; 302 case 'w': 303 /* Convert to milliseconds. */ 304 f = atof(optarg); 305 interval = f * 1000; 306 break; 307 case 'z': 308 todo |= ZMEMSTAT; 309 break; 310 case '?': 311 default: 312 usage(); 313 } 314 } 315 argc -= optind; 316 argv += optind; 317 318 xo_set_version(VMSTAT_XO_VERSION); 319 if (todo == 0) 320 todo = VMSTAT; 321 322 if (memf != NULL) { 323 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf); 324 if (kd == NULL) 325 xo_errx(1, "kvm_openfiles: %s", errbuf); 326 } 327 328 retry_nlist: 329 if (kd != NULL && (c = kvm_nlist(kd, namelist)) != 0) { 330 if (c > 0) { 331 int bufsize = 0, len = 0; 332 char *buf, *bp; 333 /* 334 * 'cnt' was renamed to 'vm_cnt'. If 'vm_cnt' is not 335 * found try looking up older 'cnt' symbol. 336 * */ 337 if (namelist[X_SUM].n_type == 0 && 338 strcmp(namelist[X_SUM].n_name, "_vm_cnt") == 0) { 339 namelist[X_SUM].n_name = "_cnt"; 340 goto retry_nlist; 341 } 342 for (c = 0; c < (int)(nitems(namelist)); c++) 343 if (namelist[c].n_type == 0) 344 bufsize += strlen(namelist[c].n_name) + 1; 345 bufsize += len + 1; 346 buf = bp = alloca(bufsize); 347 348 for (c = 0; c < (int)(nitems(namelist)); c++) 349 if (namelist[c].n_type == 0) { 350 xo_error(" %s", 351 namelist[c].n_name); 352 len = strlen(namelist[c].n_name); 353 *bp++ = ' '; 354 memcpy(bp, namelist[c].n_name, len); 355 bp += len; 356 } 357 *bp = '\0'; 358 xo_error("undefined symbols:\n", buf); 359 } else 360 xo_warnx("kvm_nlist: %s", kvm_geterr(kd)); 361 xo_finish(); 362 exit(1); 363 } 364 if (kd && Pflag) 365 xo_errx(1, "Cannot use -P with crash dumps"); 366 367 if (todo & VMSTAT) { 368 /* 369 * Make sure that the userland devstat version matches the 370 * kernel devstat version. If not, exit and print a 371 * message informing the user of his mistake. 372 */ 373 if (devstat_checkversion(NULL) < 0) 374 xo_errx(1, "%s", devstat_errbuf); 375 376 377 argv = getdrivedata(argv); 378 } 379 380 if (*argv) { 381 f = atof(*argv); 382 interval = f * 1000; 383 if (*++argv) 384 reps = atoi(*argv); 385 } 386 387 if (interval) { 388 if (!reps) 389 reps = -1; 390 } else if (reps) 391 interval = 1 * 1000; 392 393 if (todo & FORKSTAT) 394 doforkst(); 395 if (todo & MEMSTAT) 396 domemstat_malloc(); 397 if (todo & ZMEMSTAT) 398 domemstat_zone(); 399 if (todo & SUMSTAT) 400 dosum(); 401 if (todo & OBJSTAT) 402 doobjstat(); 403 #ifdef notyet 404 if (todo & TIMESTAT) 405 dotimes(); 406 #endif 407 if (todo & INTRSTAT) 408 dointr(interval, reps); 409 if (todo & VMSTAT) 410 dovmstat(interval, reps); 411 xo_finish(); 412 exit(0); 413 } 414 415 static int 416 mysysctl(const char *name, void *oldp, size_t *oldlenp) 417 { 418 int error; 419 420 error = sysctlbyname(name, oldp, oldlenp, NULL, 0); 421 if (error != 0 && errno != ENOMEM) 422 xo_err(1, "sysctl(%s)", name); 423 return (error); 424 } 425 426 static char ** 427 getdrivedata(char **argv) 428 { 429 if ((num_devices = devstat_getnumdevs(NULL)) < 0) 430 xo_errx(1, "%s", devstat_errbuf); 431 432 cur.dinfo = (struct devinfo *)calloc(1, sizeof(struct devinfo)); 433 last.dinfo = (struct devinfo *)calloc(1, sizeof(struct devinfo)); 434 435 if (devstat_getdevs(NULL, &cur) == -1) 436 xo_errx(1, "%s", devstat_errbuf); 437 438 num_devices = cur.dinfo->numdevs; 439 generation = cur.dinfo->generation; 440 441 specified_devices = (char **)malloc(sizeof(char *)); 442 for (num_devices_specified = 0; *argv; ++argv) { 443 if (isdigit(**argv)) 444 break; 445 num_devices_specified++; 446 specified_devices = (char **)realloc(specified_devices, 447 sizeof(char *) * 448 num_devices_specified); 449 specified_devices[num_devices_specified - 1] = *argv; 450 } 451 dev_select = NULL; 452 453 if (nflag == 0 && maxshowdevs < num_devices_specified) 454 maxshowdevs = num_devices_specified; 455 456 /* 457 * People are generally only interested in disk statistics when 458 * they're running vmstat. So, that's what we're going to give 459 * them if they don't specify anything by default. We'll also give 460 * them any other random devices in the system so that we get to 461 * maxshowdevs devices, if that many devices exist. If the user 462 * specifies devices on the command line, either through a pattern 463 * match or by naming them explicitly, we will give the user only 464 * those devices. 465 */ 466 if ((num_devices_specified == 0) && (num_matches == 0)) { 467 if (devstat_buildmatch(da, &matches, &num_matches) != 0) 468 xo_errx(1, "%s", devstat_errbuf); 469 470 select_mode = DS_SELECT_ADD; 471 } else 472 select_mode = DS_SELECT_ONLY; 473 474 /* 475 * At this point, selectdevs will almost surely indicate that the 476 * device list has changed, so we don't look for return values of 0 477 * or 1. If we get back -1, though, there is an error. 478 */ 479 if (devstat_selectdevs(&dev_select, &num_selected, &num_selections, 480 &select_generation, generation, cur.dinfo->devices, 481 num_devices, matches, num_matches, specified_devices, 482 num_devices_specified, select_mode, 483 maxshowdevs, 0) == -1) 484 xo_errx(1, "%s", devstat_errbuf); 485 486 return(argv); 487 } 488 489 /* Return system uptime in nanoseconds */ 490 static long long 491 getuptime(void) 492 { 493 struct timespec sp; 494 495 (void)clock_gettime(CLOCK_UPTIME, &sp); 496 497 return((long long)sp.tv_sec * 1000000000LL + sp.tv_nsec); 498 } 499 500 static void 501 fill_vmmeter(struct __vmmeter *vmmp) 502 { 503 struct pcpu **pcpu; 504 int maxcpu, i; 505 506 if (kd != NULL) { 507 struct vmmeter vm_cnt; 508 509 kread(X_SUM, &vm_cnt, sizeof(vm_cnt)); 510 #define GET_COUNTER(name) \ 511 vmmp->name = kvm_counter_u64_fetch(kd, (u_long)vm_cnt.name) 512 GET_COUNTER(v_swtch); 513 GET_COUNTER(v_trap); 514 GET_COUNTER(v_syscall); 515 GET_COUNTER(v_intr); 516 GET_COUNTER(v_soft); 517 GET_COUNTER(v_vm_faults); 518 GET_COUNTER(v_io_faults); 519 GET_COUNTER(v_cow_faults); 520 GET_COUNTER(v_cow_optim); 521 GET_COUNTER(v_zfod); 522 GET_COUNTER(v_ozfod); 523 GET_COUNTER(v_swapin); 524 GET_COUNTER(v_swapout); 525 GET_COUNTER(v_swappgsin); 526 GET_COUNTER(v_swappgsout); 527 GET_COUNTER(v_vnodein); 528 GET_COUNTER(v_vnodeout); 529 GET_COUNTER(v_vnodepgsin); 530 GET_COUNTER(v_vnodepgsout); 531 GET_COUNTER(v_intrans); 532 GET_COUNTER(v_tfree); 533 GET_COUNTER(v_forks); 534 GET_COUNTER(v_vforks); 535 GET_COUNTER(v_rforks); 536 GET_COUNTER(v_kthreads); 537 GET_COUNTER(v_forkpages); 538 GET_COUNTER(v_vforkpages); 539 GET_COUNTER(v_rforkpages); 540 GET_COUNTER(v_kthreadpages); 541 #undef GET_COUNTER 542 } else { 543 size_t size; 544 545 #define GET_VM_STATS(cat, name) do { \ 546 size = sizeof(vmmp->name); \ 547 mysysctl("vm.stats." #cat "." #name, &vmmp->name, &size); \ 548 } while (0) 549 /* sys */ 550 GET_VM_STATS(sys, v_swtch); 551 GET_VM_STATS(sys, v_trap); 552 GET_VM_STATS(sys, v_syscall); 553 GET_VM_STATS(sys, v_intr); 554 GET_VM_STATS(sys, v_soft); 555 556 /* vm */ 557 GET_VM_STATS(vm, v_vm_faults); 558 GET_VM_STATS(vm, v_io_faults); 559 GET_VM_STATS(vm, v_cow_faults); 560 GET_VM_STATS(vm, v_cow_optim); 561 GET_VM_STATS(vm, v_zfod); 562 GET_VM_STATS(vm, v_ozfod); 563 GET_VM_STATS(vm, v_swapin); 564 GET_VM_STATS(vm, v_swapout); 565 GET_VM_STATS(vm, v_swappgsin); 566 GET_VM_STATS(vm, v_swappgsout); 567 GET_VM_STATS(vm, v_vnodein); 568 GET_VM_STATS(vm, v_vnodeout); 569 GET_VM_STATS(vm, v_vnodepgsin); 570 GET_VM_STATS(vm, v_vnodepgsout); 571 GET_VM_STATS(vm, v_intrans); 572 GET_VM_STATS(vm, v_reactivated); 573 GET_VM_STATS(vm, v_pdwakeups); 574 GET_VM_STATS(vm, v_pdpages); 575 GET_VM_STATS(vm, v_pdshortfalls); 576 GET_VM_STATS(vm, v_dfree); 577 GET_VM_STATS(vm, v_pfree); 578 GET_VM_STATS(vm, v_tfree); 579 GET_VM_STATS(vm, v_page_size); 580 GET_VM_STATS(vm, v_page_count); 581 GET_VM_STATS(vm, v_free_reserved); 582 GET_VM_STATS(vm, v_free_target); 583 GET_VM_STATS(vm, v_free_min); 584 GET_VM_STATS(vm, v_free_count); 585 GET_VM_STATS(vm, v_wire_count); 586 GET_VM_STATS(vm, v_active_count); 587 GET_VM_STATS(vm, v_inactive_target); 588 GET_VM_STATS(vm, v_inactive_count); 589 GET_VM_STATS(vm, v_laundry_count); 590 GET_VM_STATS(vm, v_pageout_free_min); 591 GET_VM_STATS(vm, v_interrupt_free_min); 592 /*GET_VM_STATS(vm, v_free_severe);*/ 593 GET_VM_STATS(vm, v_forks); 594 GET_VM_STATS(vm, v_vforks); 595 GET_VM_STATS(vm, v_rforks); 596 GET_VM_STATS(vm, v_kthreads); 597 GET_VM_STATS(vm, v_forkpages); 598 GET_VM_STATS(vm, v_vforkpages); 599 GET_VM_STATS(vm, v_rforkpages); 600 GET_VM_STATS(vm, v_kthreadpages); 601 #undef GET_VM_STATS 602 } 603 } 604 605 static void 606 fill_vmtotal(struct vmtotal *vmtp) 607 { 608 if (kd != NULL) { 609 /* XXX fill vmtp */ 610 xo_errx(1, "not implemented"); 611 } else { 612 size_t size = sizeof(*vmtp); 613 mysysctl("vm.vmtotal", vmtp, &size); 614 if (size != sizeof(*vmtp)) 615 xo_errx(1, "vm.total size mismatch"); 616 } 617 } 618 619 /* Determine how many cpu columns, and what index they are in kern.cp_times */ 620 static int 621 getcpuinfo(u_long *maskp, int *maxidp) 622 { 623 int maxcpu; 624 int maxid; 625 int ncpus; 626 int i, j; 627 int empty; 628 size_t size; 629 long *times; 630 u_long mask; 631 632 if (kd != NULL) 633 xo_errx(1, "not implemented"); 634 mask = 0; 635 ncpus = 0; 636 size = sizeof(maxcpu); 637 mysysctl("kern.smp.maxcpus", &maxcpu, &size); 638 if (size != sizeof(maxcpu)) 639 xo_errx(1, "sysctl kern.smp.maxcpus"); 640 size = sizeof(long) * maxcpu * CPUSTATES; 641 times = malloc(size); 642 if (times == NULL) 643 xo_err(1, "malloc %zd bytes", size); 644 mysysctl("kern.cp_times", times, &size); 645 maxid = (size / CPUSTATES / sizeof(long)) - 1; 646 for (i = 0; i <= maxid; i++) { 647 empty = 1; 648 for (j = 0; empty && j < CPUSTATES; j++) { 649 if (times[i * CPUSTATES + j] != 0) 650 empty = 0; 651 } 652 if (!empty) { 653 mask |= (1ul << i); 654 ncpus++; 655 } 656 } 657 if (maskp) 658 *maskp = mask; 659 if (maxidp) 660 *maxidp = maxid; 661 return (ncpus); 662 } 663 664 665 static void 666 prthuman(const char *name, u_int64_t val, int size) 667 { 668 char buf[10]; 669 int flags; 670 char fmt[128]; 671 672 snprintf(fmt, sizeof(fmt), "{:%s/%%*s}", name); 673 674 if (size < 5 || size > 9) 675 xo_errx(1, "doofus"); 676 flags = HN_B | HN_NOSPACE | HN_DECIMAL; 677 humanize_number(buf, size, val, "", HN_AUTOSCALE, flags); 678 xo_attr("value", "%ju", (uintmax_t) val); 679 xo_emit(fmt, size, buf); 680 } 681 682 static int hz, hdrcnt; 683 684 static long *cur_cp_times; 685 static long *last_cp_times; 686 static size_t size_cp_times; 687 688 static void 689 dovmstat(unsigned int interval, int reps) 690 { 691 struct vmtotal total; 692 time_t uptime, halfuptime; 693 struct devinfo *tmp_dinfo; 694 size_t size; 695 int ncpus, maxid; 696 u_long cpumask; 697 int rate_adj; 698 699 uptime = getuptime() / 1000000000LL; 700 halfuptime = uptime / 2; 701 rate_adj = 1; 702 ncpus = 1; 703 maxid = 0; 704 705 /* 706 * If the user stops the program (control-Z) and then resumes it, 707 * print out the header again. 708 */ 709 (void)signal(SIGCONT, needhdr); 710 711 /* 712 * If our standard output is a tty, then install a SIGWINCH handler 713 * and set wresized so that our first iteration through the main 714 * vmstat loop will peek at the terminal's current rows to find out 715 * how many lines can fit in a screenful of output. 716 */ 717 if (isatty(fileno(stdout)) != 0) { 718 wresized = 1; 719 (void)signal(SIGWINCH, needresize); 720 } else { 721 wresized = 0; 722 winlines = VMSTAT_DEFAULT_LINES; 723 } 724 725 if (kd != NULL) { 726 if (namelist[X_STATHZ].n_type != 0 && 727 namelist[X_STATHZ].n_value != 0) 728 kread(X_STATHZ, &hz, sizeof(hz)); 729 if (!hz) 730 kread(X_HZ, &hz, sizeof(hz)); 731 } else { 732 struct clockinfo clockrate; 733 734 size = sizeof(clockrate); 735 mysysctl("kern.clockrate", &clockrate, &size); 736 if (size != sizeof(clockrate)) 737 xo_errx(1, "clockrate size mismatch"); 738 hz = clockrate.hz; 739 } 740 741 if (Pflag) { 742 ncpus = getcpuinfo(&cpumask, &maxid); 743 size_cp_times = sizeof(long) * (maxid + 1) * CPUSTATES; 744 cur_cp_times = calloc(1, size_cp_times); 745 last_cp_times = calloc(1, size_cp_times); 746 } 747 for (hdrcnt = 1;;) { 748 if (!--hdrcnt) 749 printhdr(maxid, cpumask); 750 if (kd != NULL) { 751 if (kvm_getcptime(kd, cur.cp_time) < 0) 752 xo_errx(1, "kvm_getcptime: %s", kvm_geterr(kd)); 753 } else { 754 size = sizeof(cur.cp_time); 755 mysysctl("kern.cp_time", &cur.cp_time, &size); 756 if (size != sizeof(cur.cp_time)) 757 xo_errx(1, "cp_time size mismatch"); 758 } 759 if (Pflag) { 760 size = size_cp_times; 761 mysysctl("kern.cp_times", cur_cp_times, &size); 762 if (size != size_cp_times) 763 xo_errx(1, "cp_times mismatch"); 764 } 765 766 tmp_dinfo = last.dinfo; 767 last.dinfo = cur.dinfo; 768 cur.dinfo = tmp_dinfo; 769 last.snap_time = cur.snap_time; 770 771 /* 772 * Here what we want to do is refresh our device stats. 773 * getdevs() returns 1 when the device list has changed. 774 * If the device list has changed, we want to go through 775 * the selection process again, in case a device that we 776 * were previously displaying has gone away. 777 */ 778 switch (devstat_getdevs(NULL, &cur)) { 779 case -1: 780 xo_errx(1, "%s", devstat_errbuf); 781 break; 782 case 1: { 783 int retval; 784 785 num_devices = cur.dinfo->numdevs; 786 generation = cur.dinfo->generation; 787 788 retval = devstat_selectdevs(&dev_select, &num_selected, 789 &num_selections, &select_generation, 790 generation, cur.dinfo->devices, 791 num_devices, matches, num_matches, 792 specified_devices, 793 num_devices_specified, select_mode, 794 maxshowdevs, 0); 795 switch (retval) { 796 case -1: 797 xo_errx(1, "%s", devstat_errbuf); 798 break; 799 case 1: 800 printhdr(maxid, cpumask); 801 break; 802 default: 803 break; 804 } 805 } 806 default: 807 break; 808 } 809 810 fill_vmmeter(&sum); 811 fill_vmtotal(&total); 812 xo_open_container("processes"); 813 xo_emit("{:runnable/%1d} {:waiting/%ld} " 814 "{:swapped-out/%ld}", 815 total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw); 816 xo_close_container("processes"); 817 xo_open_container("memory"); 818 #define vmstat_pgtok(a) ((a) * (sum.v_page_size >> 10)) 819 #define rate(x) (((x) * rate_adj + halfuptime) / uptime) /* round */ 820 if (hflag) { 821 xo_emit(""); 822 prthuman("available-memory", 823 total.t_avm * (u_int64_t)sum.v_page_size, 5); 824 xo_emit(" "); 825 prthuman("free-memory", 826 total.t_free * (u_int64_t)sum.v_page_size, 5); 827 xo_emit(" "); 828 } else { 829 xo_emit(" "); 830 xo_emit("{:available-memory/%7d}", 831 vmstat_pgtok(total.t_avm)); 832 xo_emit(" "); 833 xo_emit("{:free-memory/%7d}", 834 vmstat_pgtok(total.t_free)); 835 xo_emit(" "); 836 } 837 xo_emit("{:total-page-faults/%5lu} ", 838 (unsigned long)rate(sum.v_vm_faults - 839 osum.v_vm_faults)); 840 xo_close_container("memory"); 841 842 xo_open_container("paging-rates"); 843 xo_emit("{:page-reactivated/%3lu} ", 844 (unsigned long)rate(sum.v_reactivated - osum.v_reactivated)); 845 xo_emit("{:paged-in/%3lu} ", 846 (unsigned long)rate(sum.v_swapin + sum.v_vnodein - 847 (osum.v_swapin + osum.v_vnodein))); 848 xo_emit("{:paged-out/%3lu} ", 849 (unsigned long)rate(sum.v_swapout + sum.v_vnodeout - 850 (osum.v_swapout + osum.v_vnodeout))); 851 xo_emit("{:freed/%5lu} ", 852 (unsigned long)rate(sum.v_tfree - osum.v_tfree)); 853 xo_emit("{:scanned/%4lu} ", 854 (unsigned long)rate(sum.v_pdpages - osum.v_pdpages)); 855 xo_close_container("paging-rates"); 856 857 devstats(); 858 xo_open_container("fault-rates"); 859 xo_emit("{:interrupts/%4lu} {:system-calls/%5lu} " 860 "{:context-switches/%5u}", 861 (unsigned long)rate(sum.v_intr - osum.v_intr), 862 (unsigned long)rate(sum.v_syscall - osum.v_syscall), 863 (unsigned long)rate(sum.v_swtch - osum.v_swtch)); 864 xo_close_container("fault-rates"); 865 if (Pflag) 866 pcpustats(ncpus, cpumask, maxid); 867 else 868 cpustats(); 869 xo_emit("\n"); 870 xo_flush(); 871 if (reps >= 0 && --reps <= 0) 872 break; 873 osum = sum; 874 uptime = interval; 875 rate_adj = 1000; 876 /* 877 * We round upward to avoid losing low-frequency events 878 * (i.e., >= 1 per interval but < 1 per millisecond). 879 */ 880 if (interval != 1) 881 halfuptime = (uptime + 1) / 2; 882 else 883 halfuptime = 0; 884 (void)usleep(interval * 1000); 885 } 886 } 887 888 static void 889 printhdr(int maxid, u_long cpumask) 890 { 891 int i, num_shown; 892 893 num_shown = MIN(num_selected, maxshowdevs); 894 if (hflag) { 895 xo_emit("{T:procs} {T:memory} {T:/page%*s}", 19, ""); 896 } else { 897 xo_emit("{T:procs} {T:memory} {T:/page%*s}", 19, ""); 898 } 899 if (num_shown > 1) 900 xo_emit(" {T:/disks %*s}", num_shown * 4 - 7, ""); 901 else if (num_shown == 1) 902 xo_emit(" {T:disks}"); 903 xo_emit(" {T:faults} "); 904 if (Pflag) { 905 for (i = 0; i <= maxid; i++) { 906 if (cpumask & (1ul << i)) 907 xo_emit(" {T:/cpu%d} ", i); 908 } 909 xo_emit("\n"); 910 } else 911 xo_emit(" {T:cpu}\n"); 912 if (hflag) { 913 xo_emit("{T:r} {T:b} {T:w} {T:avm} {T:fre} {T:flt} {T:re} {T:pi} {T:po} {T:fr} {T:sr} "); 914 } else { 915 xo_emit("{T:r} {T:b} {T:w} {T:avm} {T:fre} {T:flt} {T:re} {T:pi} {T:po} {T:fr} {T:sr} "); 916 } 917 for (i = 0; i < num_devices; i++) 918 if ((dev_select[i].selected) 919 && (dev_select[i].selected <= maxshowdevs)) 920 xo_emit("{T:/%c%c%d} ", dev_select[i].device_name[0], 921 dev_select[i].device_name[1], 922 dev_select[i].unit_number); 923 xo_emit(" {T:in} {T:sy} {T:cs}"); 924 if (Pflag) { 925 for (i = 0; i <= maxid; i++) { 926 if (cpumask & (1ul << i)) 927 xo_emit(" {T:us} {T:sy} {T:id}"); 928 } 929 xo_emit("\n"); 930 } else 931 xo_emit(" {T:us} {T:sy} {T:id}\n"); 932 if (wresized != 0) 933 doresize(); 934 hdrcnt = winlines; 935 } 936 937 /* 938 * Force a header to be prepended to the next output. 939 */ 940 static void 941 needhdr(int dummy __unused) 942 { 943 944 hdrcnt = 1; 945 } 946 947 /* 948 * When the terminal is resized, force an update of the maximum number of rows 949 * printed between each header repetition. Then force a new header to be 950 * prepended to the next output. 951 */ 952 void 953 needresize(int signo) 954 { 955 956 wresized = 1; 957 hdrcnt = 1; 958 } 959 960 /* 961 * Update the global `winlines' count of terminal rows. 962 */ 963 void 964 doresize(void) 965 { 966 int status; 967 struct winsize w; 968 969 for (;;) { 970 status = ioctl(fileno(stdout), TIOCGWINSZ, &w); 971 if (status == -1 && errno == EINTR) 972 continue; 973 else if (status == -1) 974 xo_err(1, "ioctl"); 975 if (w.ws_row > 3) 976 winlines = w.ws_row - 3; 977 else 978 winlines = VMSTAT_DEFAULT_LINES; 979 break; 980 } 981 982 /* 983 * Inhibit doresize() calls until we are rescheduled by SIGWINCH. 984 */ 985 wresized = 0; 986 } 987 988 #ifdef notyet 989 static void 990 dotimes(void) 991 { 992 unsigned int pgintime, rectime; 993 994 kread(X_REC, &rectime, sizeof(rectime)); 995 kread(X_PGIN, &pgintime, sizeof(pgintime)); 996 kread(X_SUM, &sum, sizeof(sum)); 997 xo_emit("{:page-reclaims/%u} {N:reclaims}, " 998 "{:reclaim-time/%u} {N:total time (usec)}\n", 999 sum.v_pgrec, rectime); 1000 xo_emit("{L:average}: {:reclaim-average/%u} {N:usec \\/ reclaim}\n", 1001 rectime / sum.v_pgrec); 1002 xo_emit("\n"); 1003 xo_emit("{:page-ins/%u} {N:page ins}, " 1004 "{:page-in-time/%u} {N:total time (msec)}\n", 1005 sum.v_pgin, pgintime / 10); 1006 xo_emit("{L:average}: {:average/%8.1f} {N:msec \\/ page in}\n", 1007 pgintime / (sum.v_pgin * 10.0)); 1008 } 1009 #endif 1010 1011 static long 1012 pct(long top, long bot) 1013 { 1014 long ans; 1015 1016 if (bot == 0) 1017 return(0); 1018 ans = (quad_t)top * 100 / bot; 1019 return (ans); 1020 } 1021 1022 #define PCT(top, bot) pct((long)(top), (long)(bot)) 1023 1024 static void 1025 dosum(void) 1026 { 1027 struct nchstats lnchstats; 1028 long nchtotal; 1029 1030 fill_vmmeter(&sum); 1031 xo_open_container("summary-statistics"); 1032 xo_emit("{:context-switches/%9u} {N:cpu context switches}\n", 1033 sum.v_swtch); 1034 xo_emit("{:interrupts/%9u} {N:device interrupts}\n", 1035 sum.v_intr); 1036 xo_emit("{:software-interrupts/%9u} {N:software interrupts}\n", 1037 sum.v_soft); 1038 xo_emit("{:traps/%9u} {N:traps}\n", sum.v_trap); 1039 xo_emit("{:system-calls/%9u} {N:system calls}\n", 1040 sum.v_syscall); 1041 xo_emit("{:kernel-threads/%9u} {N:kernel threads created}\n", 1042 sum.v_kthreads); 1043 xo_emit("{:forks/%9u} {N: fork() calls}\n", sum.v_forks); 1044 xo_emit("{:vforks/%9u} {N:vfork() calls}\n", 1045 sum.v_vforks); 1046 xo_emit("{:rforks/%9u} {N:rfork() calls}\n", 1047 sum.v_rforks); 1048 xo_emit("{:swap-ins/%9u} {N:swap pager pageins}\n", 1049 sum.v_swapin); 1050 xo_emit("{:swap-in-pages/%9u} {N:swap pager pages paged in}\n", 1051 sum.v_swappgsin); 1052 xo_emit("{:swap-outs/%9u} {N:swap pager pageouts}\n", 1053 sum.v_swapout); 1054 xo_emit("{:swap-out-pages/%9u} {N:swap pager pages paged out}\n", 1055 sum.v_swappgsout); 1056 xo_emit("{:vnode-page-ins/%9u} {N:vnode pager pageins}\n", 1057 sum.v_vnodein); 1058 xo_emit("{:vnode-page-in-pages/%9u} {N:vnode pager pages paged in}\n", 1059 sum.v_vnodepgsin); 1060 xo_emit("{:vnode-page-outs/%9u} {N:vnode pager pageouts}\n", 1061 sum.v_vnodeout); 1062 xo_emit("{:vnode-page-outs/%9u} {N:vnode pager pages paged out}\n", 1063 sum.v_vnodepgsout); 1064 xo_emit("{:page-daemon-wakeups/%9u} {N:page daemon wakeups}\n", 1065 sum.v_pdwakeups); 1066 xo_emit("{:page-daemon-pages/%9u} {N:pages examined by the page daemon}\n", 1067 sum.v_pdpages); 1068 xo_emit("{:page-reclamation-shortfalls/%9u} {N:clean page reclamation shortfalls}\n", 1069 sum.v_pdshortfalls); 1070 xo_emit("{:reactivated/%9u} {N:pages reactivated by the page daemon}\n", 1071 sum.v_reactivated); 1072 xo_emit("{:copy-on-write-faults/%9u} {N:copy-on-write faults}\n", 1073 sum.v_cow_faults); 1074 xo_emit("{:copy-on-write-optimized-faults/%9u} {N:copy-on-write optimized faults}\n", 1075 sum.v_cow_optim); 1076 xo_emit("{:zero-fill-pages/%9u} {N:zero fill pages zeroed}\n", 1077 sum.v_zfod); 1078 xo_emit("{:zero-fill-prezeroed/%9u} {N:zero fill pages prezeroed}\n", 1079 sum.v_ozfod); 1080 xo_emit("{:intransit-blocking/%9u} {N:intransit blocking page faults}\n", 1081 sum.v_intrans); 1082 xo_emit("{:total-faults/%9u} {N:total VM faults taken}\n", 1083 sum.v_vm_faults); 1084 xo_emit("{:faults-requiring-io/%9u} {N:page faults requiring I\\/O}\n", 1085 sum.v_io_faults); 1086 xo_emit("{:faults-from-thread-creation/%9u} {N:pages affected by kernel thread creation}\n", 1087 sum.v_kthreadpages); 1088 xo_emit("{:faults-from-fork/%9u} {N:pages affected by fork}()\n", 1089 sum.v_forkpages); 1090 xo_emit("{:faults-from-vfork/%9u} {N:pages affected by vfork}()\n", 1091 sum.v_vforkpages); 1092 xo_emit("{:pages-rfork/%9u} {N:pages affected by rfork}()\n", 1093 sum.v_rforkpages); 1094 xo_emit("{:pages-freed/%9u} {N:pages freed}\n", 1095 sum.v_tfree); 1096 xo_emit("{:pages-freed-by-daemon/%9u} {N:pages freed by daemon}\n", 1097 sum.v_dfree); 1098 xo_emit("{:pages-freed-on-exit/%9u} {N:pages freed by exiting processes}\n", 1099 sum.v_pfree); 1100 xo_emit("{:active-pages/%9u} {N:pages active}\n", 1101 sum.v_active_count); 1102 xo_emit("{:inactive-pages/%9u} {N:pages inactive}\n", 1103 sum.v_inactive_count); 1104 xo_emit("{:laundry-pages/%9u} {N:pages in the laundry queue}\n", 1105 sum.v_laundry_count); 1106 xo_emit("{:wired-pages/%9u} {N:pages wired down}\n", 1107 sum.v_wire_count); 1108 xo_emit("{:free-pages/%9u} {N:pages free}\n", 1109 sum.v_free_count); 1110 xo_emit("{:bytes-per-page/%9u} {N:bytes per page}\n", sum.v_page_size); 1111 if (kd != NULL) { 1112 kread(X_NCHSTATS, &lnchstats, sizeof(lnchstats)); 1113 } else { 1114 size_t size = sizeof(lnchstats); 1115 mysysctl("vfs.cache.nchstats", &lnchstats, &size); 1116 if (size != sizeof(lnchstats)) 1117 xo_errx(1, "vfs.cache.nchstats size mismatch"); 1118 } 1119 nchtotal = lnchstats.ncs_goodhits + lnchstats.ncs_neghits + 1120 lnchstats.ncs_badhits + lnchstats.ncs_falsehits + 1121 lnchstats.ncs_miss + lnchstats.ncs_long; 1122 xo_emit("{:total-name-lookups/%9ld} {N:total name lookups}\n", 1123 nchtotal); 1124 xo_emit("{P:/%9s} {N:cache hits} " 1125 "({:positive-cache-hits/%ld}% pos + " 1126 "{:negative-cache-hits/%ld}% {N:neg}) " 1127 "system {:cache-hit-percent/%ld}% per-directory\n", 1128 "", PCT(lnchstats.ncs_goodhits, nchtotal), 1129 PCT(lnchstats.ncs_neghits, nchtotal), 1130 PCT(lnchstats.ncs_pass2, nchtotal)); 1131 xo_emit("{P:/%9s} {L:deletions} {:deletions/%ld}%, " 1132 "{L:falsehits} {:false-hits/%ld}%, " 1133 "{L:toolong} {:too-long/%ld}%\n", "", 1134 PCT(lnchstats.ncs_badhits, nchtotal), 1135 PCT(lnchstats.ncs_falsehits, nchtotal), 1136 PCT(lnchstats.ncs_long, nchtotal)); 1137 xo_close_container("summary-statistics"); 1138 } 1139 1140 static void 1141 doforkst(void) 1142 { 1143 fill_vmmeter(&sum); 1144 xo_open_container("fork-statistics"); 1145 xo_emit("{:fork/%u} {N:forks}, {:fork-pages/%u} {N:pages}, " 1146 "{L:average} {:fork-average/%.2f}\n", 1147 sum.v_forks, sum.v_forkpages, 1148 sum.v_forks == 0 ? 0.0 : 1149 (double)sum.v_forkpages / sum.v_forks); 1150 xo_emit("{:vfork/%u} {N:vforks}, {:vfork-pages/%u} {N:pages}, " 1151 "{L:average} {:vfork-average/%.2f}\n", 1152 sum.v_vforks, sum.v_vforkpages, 1153 sum.v_vforks == 0 ? 0.0 : 1154 (double)sum.v_vforkpages / sum.v_vforks); 1155 xo_emit("{:rfork/%u} {N:rforks}, {:rfork-pages/%u} {N:pages}, " 1156 "{L:average} {:rfork-average/%.2f}\n", 1157 sum.v_rforks, sum.v_rforkpages, 1158 sum.v_rforks == 0 ? 0.0 : 1159 (double)sum.v_rforkpages / sum.v_rforks); 1160 xo_close_container("fork-statistics"); 1161 } 1162 1163 static void 1164 devstats(void) 1165 { 1166 int dn, state; 1167 long double transfers_per_second; 1168 long double busy_seconds; 1169 long tmp; 1170 1171 for (state = 0; state < CPUSTATES; ++state) { 1172 tmp = cur.cp_time[state]; 1173 cur.cp_time[state] -= last.cp_time[state]; 1174 last.cp_time[state] = tmp; 1175 } 1176 1177 busy_seconds = cur.snap_time - last.snap_time; 1178 1179 xo_open_list("device"); 1180 for (dn = 0; dn < num_devices; dn++) { 1181 int di; 1182 1183 if ((dev_select[dn].selected == 0) 1184 || (dev_select[dn].selected > maxshowdevs)) 1185 continue; 1186 1187 di = dev_select[dn].position; 1188 1189 if (devstat_compute_statistics(&cur.dinfo->devices[di], 1190 &last.dinfo->devices[di], busy_seconds, 1191 DSM_TRANSFERS_PER_SECOND, &transfers_per_second, 1192 DSM_NONE) != 0) 1193 xo_errx(1, "%s", devstat_errbuf); 1194 1195 xo_open_instance("device"); 1196 xo_emit("{ekq:name/%c%c%d}{:transfers/%3.0Lf} ", 1197 dev_select[dn].device_name[0], 1198 dev_select[dn].device_name[1], 1199 dev_select[dn].unit_number, 1200 transfers_per_second); 1201 xo_close_instance("device"); 1202 } 1203 xo_close_list("device"); 1204 } 1205 1206 static void 1207 percent(const char *name, double pct, int *over) 1208 { 1209 char buf[10]; 1210 char fmt[128]; 1211 int l; 1212 1213 snprintf(fmt, sizeof(fmt), " {:%s/%%*s}", name); 1214 l = snprintf(buf, sizeof(buf), "%.0f", pct); 1215 if (l == 1 && *over) { 1216 xo_emit(fmt, 1, buf); 1217 (*over)--; 1218 } else 1219 xo_emit(fmt, 2, buf); 1220 if (l > 2) 1221 (*over)++; 1222 } 1223 1224 static void 1225 cpustats(void) 1226 { 1227 int state, over; 1228 double lpct, total; 1229 1230 total = 0; 1231 for (state = 0; state < CPUSTATES; ++state) 1232 total += cur.cp_time[state]; 1233 if (total) 1234 lpct = 100.0 / total; 1235 else 1236 lpct = 0.0; 1237 over = 0; 1238 xo_open_container("cpu-statistics"); 1239 percent("user", (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * lpct, &over); 1240 percent("system", (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * lpct, &over); 1241 percent("idle", cur.cp_time[CP_IDLE] * lpct, &over); 1242 xo_close_container("cpu-statistics"); 1243 } 1244 1245 static void 1246 pcpustats(int ncpus, u_long cpumask, int maxid) 1247 { 1248 int state, i; 1249 double lpct, total; 1250 long tmp; 1251 int over; 1252 1253 /* devstats does this for cp_time */ 1254 for (i = 0; i <= maxid; i++) { 1255 if ((cpumask & (1ul << i)) == 0) 1256 continue; 1257 for (state = 0; state < CPUSTATES; ++state) { 1258 tmp = cur_cp_times[i * CPUSTATES + state]; 1259 cur_cp_times[i * CPUSTATES + state] -= last_cp_times[i * 1260 CPUSTATES + state]; 1261 last_cp_times[i * CPUSTATES + state] = tmp; 1262 } 1263 } 1264 1265 over = 0; 1266 xo_open_list("cpu"); 1267 for (i = 0; i <= maxid; i++) { 1268 if ((cpumask & (1ul << i)) == 0) 1269 continue; 1270 xo_open_instance("cpu"); 1271 xo_emit("{ke:name/%d}", i); 1272 total = 0; 1273 for (state = 0; state < CPUSTATES; ++state) 1274 total += cur_cp_times[i * CPUSTATES + state]; 1275 if (total) 1276 lpct = 100.0 / total; 1277 else 1278 lpct = 0.0; 1279 percent("user", (cur_cp_times[i * CPUSTATES + CP_USER] + 1280 cur_cp_times[i * CPUSTATES + CP_NICE]) * lpct, &over); 1281 percent("system", (cur_cp_times[i * CPUSTATES + CP_SYS] + 1282 cur_cp_times[i * CPUSTATES + CP_INTR]) * lpct, &over); 1283 percent("idle", cur_cp_times[i * CPUSTATES + CP_IDLE] * lpct, 1284 &over); 1285 xo_close_instance("cpu"); 1286 } 1287 xo_close_list("cpu"); 1288 } 1289 1290 static unsigned int 1291 read_intrcnts(unsigned long **intrcnts) 1292 { 1293 size_t intrcntlen; 1294 1295 if (kd != NULL) { 1296 kread(X_SINTRCNT, &intrcntlen, sizeof(intrcntlen)); 1297 if ((*intrcnts = malloc(intrcntlen)) == NULL) 1298 err(1, "malloc()"); 1299 kread(X_INTRCNT, *intrcnts, intrcntlen); 1300 } else { 1301 for (*intrcnts = NULL, intrcntlen = 1024; ; intrcntlen *= 2) { 1302 *intrcnts = reallocf(*intrcnts, intrcntlen); 1303 if (*intrcnts == NULL) 1304 err(1, "reallocf()"); 1305 if (mysysctl("hw.intrcnt", *intrcnts, &intrcntlen) == 0) 1306 break; 1307 } 1308 } 1309 1310 return (intrcntlen / sizeof(unsigned long)); 1311 } 1312 1313 static void 1314 print_intrcnts(unsigned long *intrcnts, unsigned long *old_intrcnts, 1315 char *intrnames, unsigned int nintr, 1316 size_t istrnamlen, long long period_ms) 1317 { 1318 unsigned long *intrcnt, *old_intrcnt; 1319 uint64_t inttotal, old_inttotal, total_count, total_rate; 1320 char* intrname; 1321 unsigned int i; 1322 1323 inttotal = 0; 1324 old_inttotal = 0; 1325 intrname = intrnames; 1326 xo_open_list("interrupt"); 1327 for (i = 0, intrcnt=intrcnts, old_intrcnt=old_intrcnts; i < nintr; i++) { 1328 if (intrname[0] != '\0' && (*intrcnt != 0 || aflag)) { 1329 unsigned long count, rate; 1330 1331 count = *intrcnt - *old_intrcnt; 1332 rate = (count * 1000 + period_ms / 2) / period_ms; 1333 xo_open_instance("interrupt"); 1334 xo_emit("{d:name/%-*s}{ket:name/%s} " 1335 "{:total/%20lu} {:rate/%10lu}\n", 1336 (int)istrnamlen, intrname, 1337 intrname, count, rate); 1338 xo_close_instance("interrupt"); 1339 } 1340 intrname += strlen(intrname) + 1; 1341 inttotal += *intrcnt++; 1342 old_inttotal += *old_intrcnt++; 1343 } 1344 total_count = inttotal - old_inttotal; 1345 total_rate = (total_count * 1000 + period_ms / 2) / period_ms; 1346 xo_close_list("interrupt"); 1347 xo_emit("{L:/%-*s} {:total-interrupts/%20" PRIu64 "} " 1348 "{:total-rate/%10" PRIu64 "}\n", (int)istrnamlen, 1349 "Total", total_count, total_rate); 1350 } 1351 1352 static void 1353 dointr(unsigned int interval, int reps) 1354 { 1355 unsigned long *intrcnts; 1356 long long uptime, period_ms; 1357 unsigned long *old_intrcnts = NULL; 1358 size_t clen, inamlen, istrnamlen; 1359 char *intrnames, *intrname; 1360 1361 uptime = getuptime(); 1362 1363 /* Get the names of each interrupt source */ 1364 if (kd != NULL) { 1365 kread(X_SINTRNAMES, &inamlen, sizeof(inamlen)); 1366 if ((intrnames = malloc(inamlen)) == NULL) 1367 xo_err(1, "malloc()"); 1368 kread(X_INTRNAMES, intrnames, inamlen); 1369 } else { 1370 for (intrnames = NULL, inamlen = 1024; ; inamlen *= 2) { 1371 if ((intrnames = reallocf(intrnames, inamlen)) == NULL) 1372 xo_err(1, "reallocf()"); 1373 if (mysysctl("hw.intrnames", intrnames, &inamlen) == 0) 1374 break; 1375 } 1376 } 1377 1378 /* Determine the length of the longest interrupt name */ 1379 intrname = intrnames; 1380 istrnamlen = strlen("interrupt"); 1381 while(*intrname != '\0') { 1382 clen = strlen(intrname); 1383 if (clen > istrnamlen) 1384 istrnamlen = clen; 1385 intrname += strlen(intrname) + 1; 1386 } 1387 xo_emit("{T:/%-*s} {T:/%20s} {T:/%10s}\n", 1388 (int)istrnamlen, "interrupt", "total", "rate"); 1389 1390 /* 1391 * Loop reps times printing differential interrupt counts. If reps is 1392 * zero, then run just once, printing total counts 1393 */ 1394 xo_open_container("interrupt-statistics"); 1395 1396 period_ms = uptime / 1000000; 1397 while(1) { 1398 unsigned int nintr; 1399 long long old_uptime; 1400 1401 nintr = read_intrcnts(&intrcnts); 1402 /* 1403 * Initialize old_intrcnts to 0 for the first pass, so 1404 * print_intrcnts will print total interrupts since boot 1405 */ 1406 if (old_intrcnts == NULL) { 1407 old_intrcnts = calloc(nintr, sizeof(unsigned long)); 1408 if (old_intrcnts == NULL) 1409 xo_err(1, "calloc()"); 1410 } 1411 1412 print_intrcnts(intrcnts, old_intrcnts, intrnames, nintr, 1413 istrnamlen, period_ms); 1414 xo_flush(); 1415 1416 free(old_intrcnts); 1417 old_intrcnts = intrcnts; 1418 if (reps >= 0 && --reps <= 0) 1419 break; 1420 usleep(interval * 1000); 1421 old_uptime = uptime; 1422 uptime = getuptime(); 1423 period_ms = (uptime - old_uptime) / 1000000; 1424 } 1425 1426 xo_close_container("interrupt-statistics"); 1427 } 1428 1429 static void 1430 domemstat_malloc(void) 1431 { 1432 struct memory_type_list *mtlp; 1433 struct memory_type *mtp; 1434 int error, first, i; 1435 1436 mtlp = memstat_mtl_alloc(); 1437 if (mtlp == NULL) { 1438 xo_warn("memstat_mtl_alloc"); 1439 return; 1440 } 1441 if (kd == NULL) { 1442 if (memstat_sysctl_malloc(mtlp, 0) < 0) { 1443 xo_warnx("memstat_sysctl_malloc: %s", 1444 memstat_strerror(memstat_mtl_geterror(mtlp))); 1445 return; 1446 } 1447 } else { 1448 if (memstat_kvm_malloc(mtlp, kd) < 0) { 1449 error = memstat_mtl_geterror(mtlp); 1450 if (error == MEMSTAT_ERROR_KVM) 1451 xo_warnx("memstat_kvm_malloc: %s", 1452 kvm_geterr(kd)); 1453 else 1454 xo_warnx("memstat_kvm_malloc: %s", 1455 memstat_strerror(error)); 1456 } 1457 } 1458 xo_open_container("malloc-statistics"); 1459 xo_emit("{T:/%13s} {T:/%5s} {T:/%6s} {T:/%7s} {T:/%8s} {T:Size(s)}\n", 1460 "Type", "InUse", "MemUse", "HighUse", "Requests"); 1461 xo_open_list("memory"); 1462 for (mtp = memstat_mtl_first(mtlp); mtp != NULL; 1463 mtp = memstat_mtl_next(mtp)) { 1464 if (memstat_get_numallocs(mtp) == 0 && 1465 memstat_get_count(mtp) == 0) 1466 continue; 1467 xo_open_instance("memory"); 1468 xo_emit("{k:type/%13s/%s} {:in-use/%5" PRIu64 "} " 1469 "{:memory-use/%5" PRIu64 "}{U:K} {:high-use/%7s} " 1470 "{:requests/%8" PRIu64 "} ", 1471 memstat_get_name(mtp), memstat_get_count(mtp), 1472 (memstat_get_bytes(mtp) + 1023) / 1024, "-", 1473 memstat_get_numallocs(mtp)); 1474 first = 1; 1475 xo_open_list("size"); 1476 for (i = 0; i < 32; i++) { 1477 if (memstat_get_sizemask(mtp) & (1 << i)) { 1478 if (!first) 1479 xo_emit(","); 1480 xo_emit("{l:size/%d}", 1 << (i + 4)); 1481 first = 0; 1482 } 1483 } 1484 xo_close_list("size"); 1485 xo_close_instance("memory"); 1486 xo_emit("\n"); 1487 } 1488 xo_close_list("memory"); 1489 xo_close_container("malloc-statistics"); 1490 memstat_mtl_free(mtlp); 1491 } 1492 1493 static void 1494 domemstat_zone(void) 1495 { 1496 struct memory_type_list *mtlp; 1497 struct memory_type *mtp; 1498 char name[MEMTYPE_MAXNAME + 1]; 1499 int error; 1500 1501 mtlp = memstat_mtl_alloc(); 1502 if (mtlp == NULL) { 1503 xo_warn("memstat_mtl_alloc"); 1504 return; 1505 } 1506 if (kd == NULL) { 1507 if (memstat_sysctl_uma(mtlp, 0) < 0) { 1508 xo_warnx("memstat_sysctl_uma: %s", 1509 memstat_strerror(memstat_mtl_geterror(mtlp))); 1510 return; 1511 } 1512 } else { 1513 if (memstat_kvm_uma(mtlp, kd) < 0) { 1514 error = memstat_mtl_geterror(mtlp); 1515 if (error == MEMSTAT_ERROR_KVM) 1516 xo_warnx("memstat_kvm_uma: %s", 1517 kvm_geterr(kd)); 1518 else 1519 xo_warnx("memstat_kvm_uma: %s", 1520 memstat_strerror(error)); 1521 } 1522 } 1523 xo_open_container("memory-zone-statistics"); 1524 xo_emit("{T:/%-20s} {T:/%6s} {T:/%6s} {T:/%8s} {T:/%8s} {T:/%8s} " 1525 "{T:/%4s} {T:/%4s}\n\n", "ITEM", "SIZE", 1526 "LIMIT", "USED", "FREE", "REQ", "FAIL", "SLEEP"); 1527 xo_open_list("zone"); 1528 for (mtp = memstat_mtl_first(mtlp); mtp != NULL; 1529 mtp = memstat_mtl_next(mtp)) { 1530 strlcpy(name, memstat_get_name(mtp), MEMTYPE_MAXNAME); 1531 strcat(name, ":"); 1532 xo_open_instance("zone"); 1533 xo_emit("{d:name/%-20s}{ke:name/%s} {:size/%6" PRIu64 "}, " 1534 "{:limit/%6" PRIu64 "},{:used/%8" PRIu64 "}," 1535 "{:free/%8" PRIu64 "},{:requests/%8" PRIu64 "}," 1536 "{:fail/%4" PRIu64 "},{:sleep/%4" PRIu64 "}\n", name, 1537 memstat_get_name(mtp), 1538 memstat_get_size(mtp), memstat_get_countlimit(mtp), 1539 memstat_get_count(mtp), memstat_get_free(mtp), 1540 memstat_get_numallocs(mtp), memstat_get_failures(mtp), 1541 memstat_get_sleeps(mtp)); 1542 xo_close_instance("zone"); 1543 } 1544 memstat_mtl_free(mtlp); 1545 xo_close_list("zone"); 1546 xo_close_container("memory-zone-statistics"); 1547 xo_emit("\n"); 1548 } 1549 1550 static void 1551 display_object(struct kinfo_vmobject *kvo) 1552 { 1553 const char *str; 1554 1555 xo_open_instance("object"); 1556 xo_emit("{:resident/%5jd} ", (uintmax_t)kvo->kvo_resident); 1557 xo_emit("{:active/%5jd} ", (uintmax_t)kvo->kvo_active); 1558 xo_emit("{:inactive/%5jd} ", (uintmax_t)kvo->kvo_inactive); 1559 xo_emit("{:refcount/%3d} ", kvo->kvo_ref_count); 1560 xo_emit("{:shadowcount/%3d} ", kvo->kvo_shadow_count); 1561 switch (kvo->kvo_memattr) { 1562 #ifdef VM_MEMATTR_UNCACHEABLE 1563 case VM_MEMATTR_UNCACHEABLE: 1564 str = "UC"; 1565 break; 1566 #endif 1567 #ifdef VM_MEMATTR_WRITE_COMBINING 1568 case VM_MEMATTR_WRITE_COMBINING: 1569 str = "WC"; 1570 break; 1571 #endif 1572 #ifdef VM_MEMATTR_WRITE_THROUGH 1573 case VM_MEMATTR_WRITE_THROUGH: 1574 str = "WT"; 1575 break; 1576 #endif 1577 #ifdef VM_MEMATTR_WRITE_PROTECTED 1578 case VM_MEMATTR_WRITE_PROTECTED: 1579 str = "WP"; 1580 break; 1581 #endif 1582 #ifdef VM_MEMATTR_WRITE_BACK 1583 case VM_MEMATTR_WRITE_BACK: 1584 str = "WB"; 1585 break; 1586 #endif 1587 #ifdef VM_MEMATTR_WEAK_UNCACHEABLE 1588 case VM_MEMATTR_WEAK_UNCACHEABLE: 1589 str = "UC-"; 1590 break; 1591 #endif 1592 #ifdef VM_MEMATTR_WB_WA 1593 case VM_MEMATTR_WB_WA: 1594 str = "WB"; 1595 break; 1596 #endif 1597 #ifdef VM_MEMATTR_NOCACHE 1598 case VM_MEMATTR_NOCACHE: 1599 str = "NC"; 1600 break; 1601 #endif 1602 #ifdef VM_MEMATTR_DEVICE 1603 case VM_MEMATTR_DEVICE: 1604 str = "DEV"; 1605 break; 1606 #endif 1607 #ifdef VM_MEMATTR_CACHEABLE 1608 case VM_MEMATTR_CACHEABLE: 1609 str = "C"; 1610 break; 1611 #endif 1612 #ifdef VM_MEMATTR_PREFETCHABLE 1613 case VM_MEMATTR_PREFETCHABLE: 1614 str = "PRE"; 1615 break; 1616 #endif 1617 default: 1618 str = "??"; 1619 break; 1620 } 1621 xo_emit("{:attribute/%-3s} ", str); 1622 switch (kvo->kvo_type) { 1623 case KVME_TYPE_NONE: 1624 str = "--"; 1625 break; 1626 case KVME_TYPE_DEFAULT: 1627 str = "df"; 1628 break; 1629 case KVME_TYPE_VNODE: 1630 str = "vn"; 1631 break; 1632 case KVME_TYPE_SWAP: 1633 str = "sw"; 1634 break; 1635 case KVME_TYPE_DEVICE: 1636 str = "dv"; 1637 break; 1638 case KVME_TYPE_PHYS: 1639 str = "ph"; 1640 break; 1641 case KVME_TYPE_DEAD: 1642 str = "dd"; 1643 break; 1644 case KVME_TYPE_SG: 1645 str = "sg"; 1646 break; 1647 case KVME_TYPE_MGTDEVICE: 1648 str = "md"; 1649 break; 1650 case KVME_TYPE_UNKNOWN: 1651 default: 1652 str = "??"; 1653 break; 1654 } 1655 xo_emit("{:type/%-2s} ", str); 1656 xo_emit("{:path/%-s}\n", kvo->kvo_path); 1657 xo_close_instance("object"); 1658 } 1659 1660 static void 1661 doobjstat(void) 1662 { 1663 struct kinfo_vmobject *kvo; 1664 int cnt, i; 1665 1666 kvo = kinfo_getvmobject(&cnt); 1667 if (kvo == NULL) { 1668 xo_warn("Failed to fetch VM object list"); 1669 return; 1670 } 1671 xo_emit("{T:RES/%5s} {T:ACT/%5s} {T:INACT/%5s} {T:REF/%3s} {T:SHD/%3s} " 1672 "{T:CM/%3s} {T:TP/%2s} {T:PATH/%s}\n"); 1673 xo_open_list("object"); 1674 for (i = 0; i < cnt; i++) 1675 display_object(&kvo[i]); 1676 free(kvo); 1677 xo_close_list("object"); 1678 } 1679 1680 /* 1681 * kread reads something from the kernel, given its nlist index. 1682 */ 1683 static void 1684 kreado(int nlx, void *addr, size_t size, size_t offset) 1685 { 1686 const char *sym; 1687 1688 if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) { 1689 sym = namelist[nlx].n_name; 1690 if (*sym == '_') 1691 ++sym; 1692 xo_errx(1, "symbol %s not defined", sym); 1693 } 1694 if ((size_t)kvm_read(kd, namelist[nlx].n_value + offset, addr, 1695 size) != size) { 1696 sym = namelist[nlx].n_name; 1697 if (*sym == '_') 1698 ++sym; 1699 xo_errx(1, "%s: %s", sym, kvm_geterr(kd)); 1700 } 1701 } 1702 1703 static void 1704 kread(int nlx, void *addr, size_t size) 1705 { 1706 kreado(nlx, addr, size, 0); 1707 } 1708 1709 static char * 1710 kgetstr(const char *strp) 1711 { 1712 int n = 0, size = 1; 1713 char *ret = NULL; 1714 1715 do { 1716 if (size == n + 1) { 1717 ret = realloc(ret, size); 1718 if (ret == NULL) 1719 xo_err(1, "%s: realloc", __func__); 1720 size *= 2; 1721 } 1722 if (kvm_read(kd, (u_long)strp + n, &ret[n], 1) != 1) 1723 xo_errx(1, "%s: %s", __func__, kvm_geterr(kd)); 1724 } while (ret[n++] != '\0'); 1725 return (ret); 1726 } 1727 1728 static void 1729 usage(void) 1730 { 1731 xo_error("%s%s", 1732 "usage: vmstat [-afHhimoPsz] [-M core [-N system]] [-c count] [-n devs]\n", 1733 " [-p type,if,pass] [-w wait] [disks] [wait [count]]\n"); 1734 xo_finish(); 1735 exit(1); 1736 } 1737