vmstat.c revision 288453
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 * 4. 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 31static 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 38static 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: stable/10/usr.bin/vmstat/vmstat.c 288453 2015-10-01 17:09:20Z jhb $"); 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#include <sys/vmmeter.h> 58#include <sys/pcpu.h> 59 60#include <vm/vm_param.h> 61 62#include <ctype.h> 63#include <devstat.h> 64#include <err.h> 65#include <errno.h> 66#include <inttypes.h> 67#include <kvm.h> 68#include <limits.h> 69#include <memstat.h> 70#include <nlist.h> 71#include <paths.h> 72#include <stdio.h> 73#include <stdlib.h> 74#include <string.h> 75#include <sysexits.h> 76#include <time.h> 77#include <unistd.h> 78#include <libutil.h> 79 80static char da[] = "da"; 81 82static struct nlist namelist[] = { 83#define X_SUM 0 84 { "_cnt" }, 85#define X_HZ 1 86 { "_hz" }, 87#define X_STATHZ 2 88 { "_stathz" }, 89#define X_NCHSTATS 3 90 { "_nchstats" }, 91#define X_INTRNAMES 4 92 { "_intrnames" }, 93#define X_SINTRNAMES 5 94 { "_sintrnames" }, 95#define X_INTRCNT 6 96 { "_intrcnt" }, 97#define X_SINTRCNT 7 98 { "_sintrcnt" }, 99#ifdef notyet 100#define X_DEFICIT XXX 101 { "_deficit" }, 102#define X_REC XXX 103 { "_rectime" }, 104#define X_PGIN XXX 105 { "_pgintime" }, 106#define X_XSTATS XXX 107 { "_xstats" }, 108#define X_END XXX 109#else 110#define X_END 8 111#endif 112 { "" }, 113}; 114 115static struct statinfo cur, last; 116static int num_devices, maxshowdevs; 117static long generation; 118static struct device_selection *dev_select; 119static int num_selected; 120static struct devstat_match *matches; 121static int num_matches = 0; 122static int num_devices_specified, num_selections; 123static long select_generation; 124static char **specified_devices; 125static devstat_select_mode select_mode; 126 127static struct vmmeter sum, osum; 128 129#define VMSTAT_DEFAULT_LINES 20 /* Default number of `winlines'. */ 130volatile sig_atomic_t wresized; /* Tty resized, when non-zero. */ 131static int winlines = VMSTAT_DEFAULT_LINES; /* Current number of tty rows. */ 132 133static int aflag; 134static int nflag; 135static int Pflag; 136static int hflag; 137 138static kvm_t *kd; 139 140#define FORKSTAT 0x01 141#define INTRSTAT 0x02 142#define MEMSTAT 0x04 143#define SUMSTAT 0x08 144#define TIMESTAT 0x10 145#define VMSTAT 0x20 146#define ZMEMSTAT 0x40 147#define OBJSTAT 0x80 148 149static void cpustats(void); 150static void pcpustats(int, u_long, int); 151static void devstats(void); 152static void doforkst(void); 153static void dointr(void); 154static void doobjstat(void); 155static void dosum(void); 156static void dovmstat(unsigned int, int); 157static void domemstat_malloc(void); 158static void domemstat_zone(void); 159static void kread(int, void *, size_t); 160static void kreado(int, void *, size_t, size_t); 161static char *kgetstr(const char *); 162static void needhdr(int); 163static void needresize(int); 164static void doresize(void); 165static void printhdr(int, u_long); 166static void usage(void); 167 168static long pct(long, long); 169static long getuptime(void); 170 171static char **getdrivedata(char **); 172 173int 174main(int argc, char *argv[]) 175{ 176 int c, todo; 177 unsigned int interval; 178 float f; 179 int reps; 180 char *memf, *nlistf; 181 char errbuf[_POSIX2_LINE_MAX]; 182 183 memf = nlistf = NULL; 184 interval = reps = todo = 0; 185 maxshowdevs = 2; 186 hflag = isatty(1); 187 while ((c = getopt(argc, argv, "ac:fhHiM:mN:n:oPp:stw:z")) != -1) { 188 switch (c) { 189 case 'a': 190 aflag++; 191 break; 192 case 'c': 193 reps = atoi(optarg); 194 break; 195 case 'P': 196 Pflag++; 197 break; 198 case 'f': 199 todo |= FORKSTAT; 200 break; 201 case 'h': 202 hflag = 1; 203 break; 204 case 'H': 205 hflag = 0; 206 break; 207 case 'i': 208 todo |= INTRSTAT; 209 break; 210 case 'M': 211 memf = optarg; 212 break; 213 case 'm': 214 todo |= MEMSTAT; 215 break; 216 case 'N': 217 nlistf = optarg; 218 break; 219 case 'n': 220 nflag = 1; 221 maxshowdevs = atoi(optarg); 222 if (maxshowdevs < 0) 223 errx(1, "number of devices %d is < 0", 224 maxshowdevs); 225 break; 226 case 'o': 227 todo |= OBJSTAT; 228 break; 229 case 'p': 230 if (devstat_buildmatch(optarg, &matches, &num_matches) != 0) 231 errx(1, "%s", devstat_errbuf); 232 break; 233 case 's': 234 todo |= SUMSTAT; 235 break; 236 case 't': 237#ifdef notyet 238 todo |= TIMESTAT; 239#else 240 errx(EX_USAGE, "sorry, -t is not (re)implemented yet"); 241#endif 242 break; 243 case 'w': 244 /* Convert to milliseconds. */ 245 f = atof(optarg); 246 interval = f * 1000; 247 break; 248 case 'z': 249 todo |= ZMEMSTAT; 250 break; 251 case '?': 252 default: 253 usage(); 254 } 255 } 256 argc -= optind; 257 argv += optind; 258 259 if (todo == 0) 260 todo = VMSTAT; 261 262 if (memf != NULL) { 263 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf); 264 if (kd == NULL) 265 errx(1, "kvm_openfiles: %s", errbuf); 266 } 267 268 if (kd != NULL && (c = kvm_nlist(kd, namelist)) != 0) { 269 if (c > 0) { 270 warnx("undefined symbols:"); 271 for (c = 0; 272 c < (int)(sizeof(namelist)/sizeof(namelist[0])); 273 c++) 274 if (namelist[c].n_type == 0) 275 (void)fprintf(stderr, " %s", 276 namelist[c].n_name); 277 (void)fputc('\n', stderr); 278 } else 279 warnx("kvm_nlist: %s", kvm_geterr(kd)); 280 exit(1); 281 } 282 if (kd && Pflag) 283 errx(1, "Cannot use -P with crash dumps"); 284 285 if (todo & VMSTAT) { 286 /* 287 * Make sure that the userland devstat version matches the 288 * kernel devstat version. If not, exit and print a 289 * message informing the user of his mistake. 290 */ 291 if (devstat_checkversion(NULL) < 0) 292 errx(1, "%s", devstat_errbuf); 293 294 295 argv = getdrivedata(argv); 296 } 297 298 if (*argv) { 299 f = atof(*argv); 300 interval = f * 1000; 301 if (*++argv) 302 reps = atoi(*argv); 303 } 304 305 if (interval) { 306 if (!reps) 307 reps = -1; 308 } else if (reps) 309 interval = 1 * 1000; 310 311 if (todo & FORKSTAT) 312 doforkst(); 313 if (todo & MEMSTAT) 314 domemstat_malloc(); 315 if (todo & ZMEMSTAT) 316 domemstat_zone(); 317 if (todo & SUMSTAT) 318 dosum(); 319 if (todo & OBJSTAT) 320 doobjstat(); 321#ifdef notyet 322 if (todo & TIMESTAT) 323 dotimes(); 324#endif 325 if (todo & INTRSTAT) 326 dointr(); 327 if (todo & VMSTAT) 328 dovmstat(interval, reps); 329 exit(0); 330} 331 332static int 333mysysctl(const char *name, void *oldp, size_t *oldlenp, 334 void *newp, size_t newlen) 335{ 336 int error; 337 338 error = sysctlbyname(name, oldp, oldlenp, newp, newlen); 339 if (error != 0 && errno != ENOMEM) 340 err(1, "sysctl(%s)", name); 341 return (error); 342} 343 344static char ** 345getdrivedata(char **argv) 346{ 347 if ((num_devices = devstat_getnumdevs(NULL)) < 0) 348 errx(1, "%s", devstat_errbuf); 349 350 cur.dinfo = (struct devinfo *)calloc(1, sizeof(struct devinfo)); 351 last.dinfo = (struct devinfo *)calloc(1, sizeof(struct devinfo)); 352 353 if (devstat_getdevs(NULL, &cur) == -1) 354 errx(1, "%s", devstat_errbuf); 355 356 num_devices = cur.dinfo->numdevs; 357 generation = cur.dinfo->generation; 358 359 specified_devices = (char **)malloc(sizeof(char *)); 360 for (num_devices_specified = 0; *argv; ++argv) { 361 if (isdigit(**argv)) 362 break; 363 num_devices_specified++; 364 specified_devices = (char **)realloc(specified_devices, 365 sizeof(char *) * 366 num_devices_specified); 367 specified_devices[num_devices_specified - 1] = *argv; 368 } 369 dev_select = NULL; 370 371 if (nflag == 0 && maxshowdevs < num_devices_specified) 372 maxshowdevs = num_devices_specified; 373 374 /* 375 * People are generally only interested in disk statistics when 376 * they're running vmstat. So, that's what we're going to give 377 * them if they don't specify anything by default. We'll also give 378 * them any other random devices in the system so that we get to 379 * maxshowdevs devices, if that many devices exist. If the user 380 * specifies devices on the command line, either through a pattern 381 * match or by naming them explicitly, we will give the user only 382 * those devices. 383 */ 384 if ((num_devices_specified == 0) && (num_matches == 0)) { 385 if (devstat_buildmatch(da, &matches, &num_matches) != 0) 386 errx(1, "%s", devstat_errbuf); 387 388 select_mode = DS_SELECT_ADD; 389 } else 390 select_mode = DS_SELECT_ONLY; 391 392 /* 393 * At this point, selectdevs will almost surely indicate that the 394 * device list has changed, so we don't look for return values of 0 395 * or 1. If we get back -1, though, there is an error. 396 */ 397 if (devstat_selectdevs(&dev_select, &num_selected, &num_selections, 398 &select_generation, generation, cur.dinfo->devices, 399 num_devices, matches, num_matches, specified_devices, 400 num_devices_specified, select_mode, 401 maxshowdevs, 0) == -1) 402 errx(1, "%s", devstat_errbuf); 403 404 return(argv); 405} 406 407static long 408getuptime(void) 409{ 410 struct timespec sp; 411 412 (void)clock_gettime(CLOCK_MONOTONIC, &sp); 413 414 return(sp.tv_sec); 415} 416 417static void 418fill_pcpu(struct pcpu ***pcpup, int* maxcpup) 419{ 420 struct pcpu **pcpu; 421 422 int maxcpu, i; 423 424 *pcpup = NULL; 425 426 if (kd == NULL) 427 return; 428 429 maxcpu = kvm_getmaxcpu(kd); 430 if (maxcpu < 0) 431 errx(1, "kvm_getmaxcpu: %s", kvm_geterr(kd)); 432 433 pcpu = calloc(maxcpu, sizeof(struct pcpu *)); 434 if (pcpu == NULL) 435 err(1, "calloc"); 436 437 for (i = 0; i < maxcpu; i++) { 438 pcpu[i] = kvm_getpcpu(kd, i); 439 if (pcpu[i] == (struct pcpu *)-1) 440 errx(1, "kvm_getpcpu: %s", kvm_geterr(kd)); 441 } 442 443 *maxcpup = maxcpu; 444 *pcpup = pcpu; 445} 446 447static void 448free_pcpu(struct pcpu **pcpu, int maxcpu) 449{ 450 int i; 451 452 for (i = 0; i < maxcpu; i++) 453 free(pcpu[i]); 454 free(pcpu); 455} 456 457static void 458fill_vmmeter(struct vmmeter *vmmp) 459{ 460 struct pcpu **pcpu; 461 int maxcpu, i; 462 463 if (kd != NULL) { 464 kread(X_SUM, vmmp, sizeof(*vmmp)); 465 fill_pcpu(&pcpu, &maxcpu); 466 for (i = 0; i < maxcpu; i++) { 467 if (pcpu[i] == NULL) 468 continue; 469#define ADD_FROM_PCPU(i, name) \ 470 vmmp->name += pcpu[i]->pc_cnt.name 471 ADD_FROM_PCPU(i, v_swtch); 472 ADD_FROM_PCPU(i, v_trap); 473 ADD_FROM_PCPU(i, v_syscall); 474 ADD_FROM_PCPU(i, v_intr); 475 ADD_FROM_PCPU(i, v_soft); 476 ADD_FROM_PCPU(i, v_vm_faults); 477 ADD_FROM_PCPU(i, v_io_faults); 478 ADD_FROM_PCPU(i, v_cow_faults); 479 ADD_FROM_PCPU(i, v_cow_optim); 480 ADD_FROM_PCPU(i, v_zfod); 481 ADD_FROM_PCPU(i, v_ozfod); 482 ADD_FROM_PCPU(i, v_swapin); 483 ADD_FROM_PCPU(i, v_swapout); 484 ADD_FROM_PCPU(i, v_swappgsin); 485 ADD_FROM_PCPU(i, v_swappgsout); 486 ADD_FROM_PCPU(i, v_vnodein); 487 ADD_FROM_PCPU(i, v_vnodeout); 488 ADD_FROM_PCPU(i, v_vnodepgsin); 489 ADD_FROM_PCPU(i, v_vnodepgsout); 490 ADD_FROM_PCPU(i, v_intrans); 491 ADD_FROM_PCPU(i, v_tfree); 492 ADD_FROM_PCPU(i, v_forks); 493 ADD_FROM_PCPU(i, v_vforks); 494 ADD_FROM_PCPU(i, v_rforks); 495 ADD_FROM_PCPU(i, v_kthreads); 496 ADD_FROM_PCPU(i, v_forkpages); 497 ADD_FROM_PCPU(i, v_vforkpages); 498 ADD_FROM_PCPU(i, v_rforkpages); 499 ADD_FROM_PCPU(i, v_kthreadpages); 500#undef ADD_FROM_PCPU 501 } 502 free_pcpu(pcpu, maxcpu); 503 } else { 504 size_t size = sizeof(unsigned int); 505#define GET_VM_STATS(cat, name) \ 506 mysysctl("vm.stats." #cat "." #name, &vmmp->name, &size, NULL, 0) 507 /* sys */ 508 GET_VM_STATS(sys, v_swtch); 509 GET_VM_STATS(sys, v_trap); 510 GET_VM_STATS(sys, v_syscall); 511 GET_VM_STATS(sys, v_intr); 512 GET_VM_STATS(sys, v_soft); 513 514 /* vm */ 515 GET_VM_STATS(vm, v_vm_faults); 516 GET_VM_STATS(vm, v_io_faults); 517 GET_VM_STATS(vm, v_cow_faults); 518 GET_VM_STATS(vm, v_cow_optim); 519 GET_VM_STATS(vm, v_zfod); 520 GET_VM_STATS(vm, v_ozfod); 521 GET_VM_STATS(vm, v_swapin); 522 GET_VM_STATS(vm, v_swapout); 523 GET_VM_STATS(vm, v_swappgsin); 524 GET_VM_STATS(vm, v_swappgsout); 525 GET_VM_STATS(vm, v_vnodein); 526 GET_VM_STATS(vm, v_vnodeout); 527 GET_VM_STATS(vm, v_vnodepgsin); 528 GET_VM_STATS(vm, v_vnodepgsout); 529 GET_VM_STATS(vm, v_intrans); 530 GET_VM_STATS(vm, v_reactivated); 531 GET_VM_STATS(vm, v_pdwakeups); 532 GET_VM_STATS(vm, v_pdpages); 533 GET_VM_STATS(vm, v_tcached); 534 GET_VM_STATS(vm, v_dfree); 535 GET_VM_STATS(vm, v_pfree); 536 GET_VM_STATS(vm, v_tfree); 537 GET_VM_STATS(vm, v_page_size); 538 GET_VM_STATS(vm, v_page_count); 539 GET_VM_STATS(vm, v_free_reserved); 540 GET_VM_STATS(vm, v_free_target); 541 GET_VM_STATS(vm, v_free_min); 542 GET_VM_STATS(vm, v_free_count); 543 GET_VM_STATS(vm, v_wire_count); 544 GET_VM_STATS(vm, v_active_count); 545 GET_VM_STATS(vm, v_inactive_target); 546 GET_VM_STATS(vm, v_inactive_count); 547 GET_VM_STATS(vm, v_cache_count); 548 GET_VM_STATS(vm, v_cache_min); 549 GET_VM_STATS(vm, v_cache_max); 550 GET_VM_STATS(vm, v_pageout_free_min); 551 GET_VM_STATS(vm, v_interrupt_free_min); 552 /*GET_VM_STATS(vm, v_free_severe);*/ 553 GET_VM_STATS(vm, v_forks); 554 GET_VM_STATS(vm, v_vforks); 555 GET_VM_STATS(vm, v_rforks); 556 GET_VM_STATS(vm, v_kthreads); 557 GET_VM_STATS(vm, v_forkpages); 558 GET_VM_STATS(vm, v_vforkpages); 559 GET_VM_STATS(vm, v_rforkpages); 560 GET_VM_STATS(vm, v_kthreadpages); 561#undef GET_VM_STATS 562 } 563} 564 565static void 566fill_vmtotal(struct vmtotal *vmtp) 567{ 568 if (kd != NULL) { 569 /* XXX fill vmtp */ 570 errx(1, "not implemented"); 571 } else { 572 size_t size = sizeof(*vmtp); 573 mysysctl("vm.vmtotal", vmtp, &size, NULL, 0); 574 if (size != sizeof(*vmtp)) 575 errx(1, "vm.total size mismatch"); 576 } 577} 578 579/* Determine how many cpu columns, and what index they are in kern.cp_times */ 580static int 581getcpuinfo(u_long *maskp, int *maxidp) 582{ 583 int maxcpu; 584 int maxid; 585 int ncpus; 586 int i, j; 587 int empty; 588 size_t size; 589 long *times; 590 u_long mask; 591 592 if (kd != NULL) 593 errx(1, "not implemented"); 594 mask = 0; 595 ncpus = 0; 596 size = sizeof(maxcpu); 597 mysysctl("kern.smp.maxcpus", &maxcpu, &size, NULL, 0); 598 if (size != sizeof(maxcpu)) 599 errx(1, "sysctl kern.smp.maxcpus"); 600 size = sizeof(long) * maxcpu * CPUSTATES; 601 times = malloc(size); 602 if (times == NULL) 603 err(1, "malloc %zd bytes", size); 604 mysysctl("kern.cp_times", times, &size, NULL, 0); 605 maxid = (size / CPUSTATES / sizeof(long)) - 1; 606 for (i = 0; i <= maxid; i++) { 607 empty = 1; 608 for (j = 0; empty && j < CPUSTATES; j++) { 609 if (times[i * CPUSTATES + j] != 0) 610 empty = 0; 611 } 612 if (!empty) { 613 mask |= (1ul << i); 614 ncpus++; 615 } 616 } 617 if (maskp) 618 *maskp = mask; 619 if (maxidp) 620 *maxidp = maxid; 621 return (ncpus); 622} 623 624 625static void 626prthuman(u_int64_t val, int size) 627{ 628 char buf[10]; 629 int flags; 630 631 if (size < 5 || size > 9) 632 errx(1, "doofus"); 633 flags = HN_B | HN_NOSPACE | HN_DECIMAL; 634 humanize_number(buf, size, val, "", HN_AUTOSCALE, flags); 635 printf("%*s", size, buf); 636} 637 638static int hz, hdrcnt; 639 640static long *cur_cp_times; 641static long *last_cp_times; 642static size_t size_cp_times; 643 644static void 645dovmstat(unsigned int interval, int reps) 646{ 647 struct vmtotal total; 648 time_t uptime, halfuptime; 649 struct devinfo *tmp_dinfo; 650 size_t size; 651 int ncpus, maxid; 652 u_long cpumask; 653 int rate_adj; 654 655 uptime = getuptime(); 656 halfuptime = uptime / 2; 657 rate_adj = 1; 658 ncpus = 1; 659 maxid = 0; 660 661 /* 662 * If the user stops the program (control-Z) and then resumes it, 663 * print out the header again. 664 */ 665 (void)signal(SIGCONT, needhdr); 666 667 /* 668 * If our standard output is a tty, then install a SIGWINCH handler 669 * and set wresized so that our first iteration through the main 670 * vmstat loop will peek at the terminal's current rows to find out 671 * how many lines can fit in a screenful of output. 672 */ 673 if (isatty(fileno(stdout)) != 0) { 674 wresized = 1; 675 (void)signal(SIGWINCH, needresize); 676 } else { 677 wresized = 0; 678 winlines = VMSTAT_DEFAULT_LINES; 679 } 680 681 if (kd != NULL) { 682 if (namelist[X_STATHZ].n_type != 0 && 683 namelist[X_STATHZ].n_value != 0) 684 kread(X_STATHZ, &hz, sizeof(hz)); 685 if (!hz) 686 kread(X_HZ, &hz, sizeof(hz)); 687 } else { 688 struct clockinfo clockrate; 689 690 size = sizeof(clockrate); 691 mysysctl("kern.clockrate", &clockrate, &size, NULL, 0); 692 if (size != sizeof(clockrate)) 693 errx(1, "clockrate size mismatch"); 694 hz = clockrate.hz; 695 } 696 697 if (Pflag) { 698 ncpus = getcpuinfo(&cpumask, &maxid); 699 size_cp_times = sizeof(long) * (maxid + 1) * CPUSTATES; 700 cur_cp_times = calloc(1, size_cp_times); 701 last_cp_times = calloc(1, size_cp_times); 702 } 703 for (hdrcnt = 1;;) { 704 if (!--hdrcnt) 705 printhdr(maxid, cpumask); 706 if (kd != NULL) { 707 if (kvm_getcptime(kd, cur.cp_time) < 0) 708 errx(1, "kvm_getcptime: %s", kvm_geterr(kd)); 709 } else { 710 size = sizeof(cur.cp_time); 711 mysysctl("kern.cp_time", &cur.cp_time, &size, NULL, 0); 712 if (size != sizeof(cur.cp_time)) 713 errx(1, "cp_time size mismatch"); 714 } 715 if (Pflag) { 716 size = size_cp_times; 717 mysysctl("kern.cp_times", cur_cp_times, &size, NULL, 0); 718 if (size != size_cp_times) 719 errx(1, "cp_times mismatch"); 720 } 721 722 tmp_dinfo = last.dinfo; 723 last.dinfo = cur.dinfo; 724 cur.dinfo = tmp_dinfo; 725 last.snap_time = cur.snap_time; 726 727 /* 728 * Here what we want to do is refresh our device stats. 729 * getdevs() returns 1 when the device list has changed. 730 * If the device list has changed, we want to go through 731 * the selection process again, in case a device that we 732 * were previously displaying has gone away. 733 */ 734 switch (devstat_getdevs(NULL, &cur)) { 735 case -1: 736 errx(1, "%s", devstat_errbuf); 737 break; 738 case 1: { 739 int retval; 740 741 num_devices = cur.dinfo->numdevs; 742 generation = cur.dinfo->generation; 743 744 retval = devstat_selectdevs(&dev_select, &num_selected, 745 &num_selections, &select_generation, 746 generation, cur.dinfo->devices, 747 num_devices, matches, num_matches, 748 specified_devices, 749 num_devices_specified, select_mode, 750 maxshowdevs, 0); 751 switch (retval) { 752 case -1: 753 errx(1, "%s", devstat_errbuf); 754 break; 755 case 1: 756 printhdr(maxid, cpumask); 757 break; 758 default: 759 break; 760 } 761 } 762 default: 763 break; 764 } 765 766 fill_vmmeter(&sum); 767 fill_vmtotal(&total); 768 (void)printf("%2d %1d %1d", 769 total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw); 770#define vmstat_pgtok(a) ((a) * (sum.v_page_size >> 10)) 771#define rate(x) (((x) * rate_adj + halfuptime) / uptime) /* round */ 772 if (hflag) { 773 printf(" "); 774 prthuman(total.t_avm * (u_int64_t)sum.v_page_size, 7); 775 printf(" "); 776 prthuman(total.t_free * (u_int64_t)sum.v_page_size, 6); 777 printf(" "); 778 } else { 779 printf(" %7d ", vmstat_pgtok(total.t_avm)); 780 printf(" %6d ", vmstat_pgtok(total.t_free)); 781 } 782 (void)printf("%5lu ", 783 (unsigned long)rate(sum.v_vm_faults - osum.v_vm_faults)); 784 (void)printf("%3lu ", 785 (unsigned long)rate(sum.v_reactivated - osum.v_reactivated)); 786 (void)printf("%3lu ", 787 (unsigned long)rate(sum.v_swapin + sum.v_vnodein - 788 (osum.v_swapin + osum.v_vnodein))); 789 (void)printf("%3lu ", 790 (unsigned long)rate(sum.v_swapout + sum.v_vnodeout - 791 (osum.v_swapout + osum.v_vnodeout))); 792 (void)printf("%5lu ", 793 (unsigned long)rate(sum.v_tfree - osum.v_tfree)); 794 (void)printf("%3lu ", 795 (unsigned long)rate(sum.v_pdpages - osum.v_pdpages)); 796 devstats(); 797 (void)printf("%4lu %4lu %4lu", 798 (unsigned long)rate(sum.v_intr - osum.v_intr), 799 (unsigned long)rate(sum.v_syscall - osum.v_syscall), 800 (unsigned long)rate(sum.v_swtch - osum.v_swtch)); 801 if (Pflag) 802 pcpustats(ncpus, cpumask, maxid); 803 else 804 cpustats(); 805 (void)printf("\n"); 806 (void)fflush(stdout); 807 if (reps >= 0 && --reps <= 0) 808 break; 809 osum = sum; 810 uptime = interval; 811 rate_adj = 1000; 812 /* 813 * We round upward to avoid losing low-frequency events 814 * (i.e., >= 1 per interval but < 1 per millisecond). 815 */ 816 if (interval != 1) 817 halfuptime = (uptime + 1) / 2; 818 else 819 halfuptime = 0; 820 (void)usleep(interval * 1000); 821 } 822} 823 824static void 825printhdr(int maxid, u_long cpumask) 826{ 827 int i, num_shown; 828 829 num_shown = (num_selected < maxshowdevs) ? num_selected : maxshowdevs; 830 (void)printf(" procs memory page%*s", 19, ""); 831 if (num_shown > 1) 832 (void)printf(" disks %*s", num_shown * 4 - 7, ""); 833 else if (num_shown == 1) 834 (void)printf("disk"); 835 (void)printf(" faults "); 836 if (Pflag) { 837 for (i = 0; i <= maxid; i++) { 838 if (cpumask & (1ul << i)) 839 printf("cpu%-2d ", i); 840 } 841 printf("\n"); 842 } else 843 printf("cpu\n"); 844 (void)printf(" r b w avm fre flt re pi po fr sr "); 845 for (i = 0; i < num_devices; i++) 846 if ((dev_select[i].selected) 847 && (dev_select[i].selected <= maxshowdevs)) 848 (void)printf("%c%c%d ", dev_select[i].device_name[0], 849 dev_select[i].device_name[1], 850 dev_select[i].unit_number); 851 (void)printf(" in sy cs"); 852 if (Pflag) { 853 for (i = 0; i <= maxid; i++) { 854 if (cpumask & (1ul << i)) 855 printf(" us sy id"); 856 } 857 printf("\n"); 858 } else 859 printf(" us sy id\n"); 860 if (wresized != 0) 861 doresize(); 862 hdrcnt = winlines; 863} 864 865/* 866 * Force a header to be prepended to the next output. 867 */ 868static void 869needhdr(int dummy __unused) 870{ 871 872 hdrcnt = 1; 873} 874 875/* 876 * When the terminal is resized, force an update of the maximum number of rows 877 * printed between each header repetition. Then force a new header to be 878 * prepended to the next output. 879 */ 880void 881needresize(int signo) 882{ 883 884 wresized = 1; 885 hdrcnt = 1; 886} 887 888/* 889 * Update the global `winlines' count of terminal rows. 890 */ 891void 892doresize(void) 893{ 894 int status; 895 struct winsize w; 896 897 for (;;) { 898 status = ioctl(fileno(stdout), TIOCGWINSZ, &w); 899 if (status == -1 && errno == EINTR) 900 continue; 901 else if (status == -1) 902 err(1, "ioctl"); 903 if (w.ws_row > 3) 904 winlines = w.ws_row - 3; 905 else 906 winlines = VMSTAT_DEFAULT_LINES; 907 break; 908 } 909 910 /* 911 * Inhibit doresize() calls until we are rescheduled by SIGWINCH. 912 */ 913 wresized = 0; 914} 915 916#ifdef notyet 917static void 918dotimes(void) 919{ 920 unsigned int pgintime, rectime; 921 922 kread(X_REC, &rectime, sizeof(rectime)); 923 kread(X_PGIN, &pgintime, sizeof(pgintime)); 924 kread(X_SUM, &sum, sizeof(sum)); 925 (void)printf("%u reclaims, %u total time (usec)\n", 926 sum.v_pgrec, rectime); 927 (void)printf("average: %u usec / reclaim\n", rectime / sum.v_pgrec); 928 (void)printf("\n"); 929 (void)printf("%u page ins, %u total time (msec)\n", 930 sum.v_pgin, pgintime / 10); 931 (void)printf("average: %8.1f msec / page in\n", 932 pgintime / (sum.v_pgin * 10.0)); 933} 934#endif 935 936static long 937pct(long top, long bot) 938{ 939 long ans; 940 941 if (bot == 0) 942 return(0); 943 ans = (quad_t)top * 100 / bot; 944 return (ans); 945} 946 947#define PCT(top, bot) pct((long)(top), (long)(bot)) 948 949static void 950dosum(void) 951{ 952 struct nchstats lnchstats; 953 long nchtotal; 954 955 fill_vmmeter(&sum); 956 (void)printf("%9u cpu context switches\n", sum.v_swtch); 957 (void)printf("%9u device interrupts\n", sum.v_intr); 958 (void)printf("%9u software interrupts\n", sum.v_soft); 959 (void)printf("%9u traps\n", sum.v_trap); 960 (void)printf("%9u system calls\n", sum.v_syscall); 961 (void)printf("%9u kernel threads created\n", sum.v_kthreads); 962 (void)printf("%9u fork() calls\n", sum.v_forks); 963 (void)printf("%9u vfork() calls\n", sum.v_vforks); 964 (void)printf("%9u rfork() calls\n", sum.v_rforks); 965 (void)printf("%9u swap pager pageins\n", sum.v_swapin); 966 (void)printf("%9u swap pager pages paged in\n", sum.v_swappgsin); 967 (void)printf("%9u swap pager pageouts\n", sum.v_swapout); 968 (void)printf("%9u swap pager pages paged out\n", sum.v_swappgsout); 969 (void)printf("%9u vnode pager pageins\n", sum.v_vnodein); 970 (void)printf("%9u vnode pager pages paged in\n", sum.v_vnodepgsin); 971 (void)printf("%9u vnode pager pageouts\n", sum.v_vnodeout); 972 (void)printf("%9u vnode pager pages paged out\n", sum.v_vnodepgsout); 973 (void)printf("%9u page daemon wakeups\n", sum.v_pdwakeups); 974 (void)printf("%9u pages examined by the page daemon\n", sum.v_pdpages); 975 (void)printf("%9u pages reactivated\n", sum.v_reactivated); 976 (void)printf("%9u copy-on-write faults\n", sum.v_cow_faults); 977 (void)printf("%9u copy-on-write optimized faults\n", sum.v_cow_optim); 978 (void)printf("%9u zero fill pages zeroed\n", sum.v_zfod); 979 (void)printf("%9u zero fill pages prezeroed\n", sum.v_ozfod); 980 (void)printf("%9u intransit blocking page faults\n", sum.v_intrans); 981 (void)printf("%9u total VM faults taken\n", sum.v_vm_faults); 982 (void)printf("%9u page faults requiring I/O\n", sum.v_io_faults); 983 (void)printf("%9u pages affected by kernel thread creation\n", sum.v_kthreadpages); 984 (void)printf("%9u pages affected by fork()\n", sum.v_forkpages); 985 (void)printf("%9u pages affected by vfork()\n", sum.v_vforkpages); 986 (void)printf("%9u pages affected by rfork()\n", sum.v_rforkpages); 987 (void)printf("%9u pages cached\n", sum.v_tcached); 988 (void)printf("%9u pages freed\n", sum.v_tfree); 989 (void)printf("%9u pages freed by daemon\n", sum.v_dfree); 990 (void)printf("%9u pages freed by exiting processes\n", sum.v_pfree); 991 (void)printf("%9u pages active\n", sum.v_active_count); 992 (void)printf("%9u pages inactive\n", sum.v_inactive_count); 993 (void)printf("%9u pages in VM cache\n", sum.v_cache_count); 994 (void)printf("%9u pages wired down\n", sum.v_wire_count); 995 (void)printf("%9u pages free\n", sum.v_free_count); 996 (void)printf("%9u bytes per page\n", sum.v_page_size); 997 if (kd != NULL) { 998 kread(X_NCHSTATS, &lnchstats, sizeof(lnchstats)); 999 } else { 1000 size_t size = sizeof(lnchstats); 1001 mysysctl("vfs.cache.nchstats", &lnchstats, &size, NULL, 0); 1002 if (size != sizeof(lnchstats)) 1003 errx(1, "vfs.cache.nchstats size mismatch"); 1004 } 1005 nchtotal = lnchstats.ncs_goodhits + lnchstats.ncs_neghits + 1006 lnchstats.ncs_badhits + lnchstats.ncs_falsehits + 1007 lnchstats.ncs_miss + lnchstats.ncs_long; 1008 (void)printf("%9ld total name lookups\n", nchtotal); 1009 (void)printf( 1010 "%9s cache hits (%ld%% pos + %ld%% neg) system %ld%% per-directory\n", 1011 "", PCT(lnchstats.ncs_goodhits, nchtotal), 1012 PCT(lnchstats.ncs_neghits, nchtotal), 1013 PCT(lnchstats.ncs_pass2, nchtotal)); 1014 (void)printf("%9s deletions %ld%%, falsehits %ld%%, toolong %ld%%\n", "", 1015 PCT(lnchstats.ncs_badhits, nchtotal), 1016 PCT(lnchstats.ncs_falsehits, nchtotal), 1017 PCT(lnchstats.ncs_long, nchtotal)); 1018} 1019 1020static void 1021doforkst(void) 1022{ 1023 fill_vmmeter(&sum); 1024 (void)printf("%u forks, %u pages, average %.2f\n", 1025 sum.v_forks, sum.v_forkpages, 1026 sum.v_forks == 0 ? 0.0 : 1027 (double)sum.v_forkpages / sum.v_forks); 1028 (void)printf("%u vforks, %u pages, average %.2f\n", 1029 sum.v_vforks, sum.v_vforkpages, 1030 sum.v_vforks == 0 ? 0.0 : 1031 (double)sum.v_vforkpages / sum.v_vforks); 1032 (void)printf("%u rforks, %u pages, average %.2f\n", 1033 sum.v_rforks, sum.v_rforkpages, 1034 sum.v_rforks == 0 ? 0.0 : 1035 (double)sum.v_rforkpages / sum.v_rforks); 1036} 1037 1038static void 1039devstats(void) 1040{ 1041 int dn, state; 1042 long double transfers_per_second; 1043 long double busy_seconds; 1044 long tmp; 1045 1046 for (state = 0; state < CPUSTATES; ++state) { 1047 tmp = cur.cp_time[state]; 1048 cur.cp_time[state] -= last.cp_time[state]; 1049 last.cp_time[state] = tmp; 1050 } 1051 1052 busy_seconds = cur.snap_time - last.snap_time; 1053 1054 for (dn = 0; dn < num_devices; dn++) { 1055 int di; 1056 1057 if ((dev_select[dn].selected == 0) 1058 || (dev_select[dn].selected > maxshowdevs)) 1059 continue; 1060 1061 di = dev_select[dn].position; 1062 1063 if (devstat_compute_statistics(&cur.dinfo->devices[di], 1064 &last.dinfo->devices[di], busy_seconds, 1065 DSM_TRANSFERS_PER_SECOND, &transfers_per_second, 1066 DSM_NONE) != 0) 1067 errx(1, "%s", devstat_errbuf); 1068 1069 (void)printf("%3.0Lf ", transfers_per_second); 1070 } 1071} 1072 1073static void 1074percent(double pct, int *over) 1075{ 1076 char buf[10]; 1077 int l; 1078 1079 l = snprintf(buf, sizeof(buf), "%.0f", pct); 1080 if (l == 1 && *over) { 1081 printf("%s", buf); 1082 (*over)--; 1083 } else 1084 printf("%2s", buf); 1085 if (l > 2) 1086 (*over)++; 1087} 1088 1089static void 1090cpustats(void) 1091{ 1092 int state, over; 1093 double lpct, total; 1094 1095 total = 0; 1096 for (state = 0; state < CPUSTATES; ++state) 1097 total += cur.cp_time[state]; 1098 if (total) 1099 lpct = 100.0 / total; 1100 else 1101 lpct = 0.0; 1102 over = 0; 1103 printf(" "); 1104 percent((cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * lpct, &over); 1105 printf(" "); 1106 percent((cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * lpct, &over); 1107 printf(" "); 1108 percent(cur.cp_time[CP_IDLE] * lpct, &over); 1109} 1110 1111static void 1112pcpustats(int ncpus, u_long cpumask, int maxid) 1113{ 1114 int state, i; 1115 double lpct, total; 1116 long tmp; 1117 int over; 1118 1119 /* devstats does this for cp_time */ 1120 for (i = 0; i <= maxid; i++) { 1121 if ((cpumask & (1ul << i)) == 0) 1122 continue; 1123 for (state = 0; state < CPUSTATES; ++state) { 1124 tmp = cur_cp_times[i * CPUSTATES + state]; 1125 cur_cp_times[i * CPUSTATES + state] -= last_cp_times[i * CPUSTATES + state]; 1126 last_cp_times[i * CPUSTATES + state] = tmp; 1127 } 1128 } 1129 1130 over = 0; 1131 for (i = 0; i <= maxid; i++) { 1132 if ((cpumask & (1ul << i)) == 0) 1133 continue; 1134 total = 0; 1135 for (state = 0; state < CPUSTATES; ++state) 1136 total += cur_cp_times[i * CPUSTATES + state]; 1137 if (total) 1138 lpct = 100.0 / total; 1139 else 1140 lpct = 0.0; 1141 printf(" "); 1142 percent((cur_cp_times[i * CPUSTATES + CP_USER] + 1143 cur_cp_times[i * CPUSTATES + CP_NICE]) * lpct, &over); 1144 printf(" "); 1145 percent((cur_cp_times[i * CPUSTATES + CP_SYS] + 1146 cur_cp_times[i * CPUSTATES + CP_INTR]) * lpct, &over); 1147 printf(" "); 1148 percent(cur_cp_times[i * CPUSTATES + CP_IDLE] * lpct, &over); 1149 } 1150} 1151 1152static void 1153dointr(void) 1154{ 1155 unsigned long *intrcnt, uptime; 1156 uint64_t inttotal; 1157 size_t clen, inamlen, intrcntlen, istrnamlen; 1158 unsigned int i, nintr; 1159 char *intrname, *tintrname; 1160 1161 uptime = getuptime(); 1162 if (kd != NULL) { 1163 kread(X_SINTRCNT, &intrcntlen, sizeof(intrcntlen)); 1164 kread(X_SINTRNAMES, &inamlen, sizeof(inamlen)); 1165 if ((intrcnt = malloc(intrcntlen)) == NULL || 1166 (intrname = malloc(inamlen)) == NULL) 1167 err(1, "malloc()"); 1168 kread(X_INTRCNT, intrcnt, intrcntlen); 1169 kread(X_INTRNAMES, intrname, inamlen); 1170 } else { 1171 for (intrcnt = NULL, intrcntlen = 1024; ; intrcntlen *= 2) { 1172 if ((intrcnt = reallocf(intrcnt, intrcntlen)) == NULL) 1173 err(1, "reallocf()"); 1174 if (mysysctl("hw.intrcnt", 1175 intrcnt, &intrcntlen, NULL, 0) == 0) 1176 break; 1177 } 1178 for (intrname = NULL, inamlen = 1024; ; inamlen *= 2) { 1179 if ((intrname = reallocf(intrname, inamlen)) == NULL) 1180 err(1, "reallocf()"); 1181 if (mysysctl("hw.intrnames", 1182 intrname, &inamlen, NULL, 0) == 0) 1183 break; 1184 } 1185 } 1186 nintr = intrcntlen / sizeof(unsigned long); 1187 tintrname = intrname; 1188 istrnamlen = strlen("interrupt"); 1189 for (i = 0; i < nintr; i++) { 1190 clen = strlen(tintrname); 1191 if (clen > istrnamlen) 1192 istrnamlen = clen; 1193 tintrname += clen + 1; 1194 } 1195 (void)printf("%-*s %20s %10s\n", (int)istrnamlen, "interrupt", "total", 1196 "rate"); 1197 inttotal = 0; 1198 for (i = 0; i < nintr; i++) { 1199 if (intrname[0] != '\0' && (*intrcnt != 0 || aflag)) 1200 (void)printf("%-*s %20lu %10lu\n", (int)istrnamlen, 1201 intrname, *intrcnt, *intrcnt / uptime); 1202 intrname += strlen(intrname) + 1; 1203 inttotal += *intrcnt++; 1204 } 1205 (void)printf("%-*s %20" PRIu64 " %10" PRIu64 "\n", (int)istrnamlen, 1206 "Total", inttotal, inttotal / uptime); 1207} 1208 1209static void 1210domemstat_malloc(void) 1211{ 1212 struct memory_type_list *mtlp; 1213 struct memory_type *mtp; 1214 int error, first, i; 1215 1216 mtlp = memstat_mtl_alloc(); 1217 if (mtlp == NULL) { 1218 warn("memstat_mtl_alloc"); 1219 return; 1220 } 1221 if (kd == NULL) { 1222 if (memstat_sysctl_malloc(mtlp, 0) < 0) { 1223 warnx("memstat_sysctl_malloc: %s", 1224 memstat_strerror(memstat_mtl_geterror(mtlp))); 1225 return; 1226 } 1227 } else { 1228 if (memstat_kvm_malloc(mtlp, kd) < 0) { 1229 error = memstat_mtl_geterror(mtlp); 1230 if (error == MEMSTAT_ERROR_KVM) 1231 warnx("memstat_kvm_malloc: %s", 1232 kvm_geterr(kd)); 1233 else 1234 warnx("memstat_kvm_malloc: %s", 1235 memstat_strerror(error)); 1236 } 1237 } 1238 printf("%13s %5s %6s %7s %8s Size(s)\n", "Type", "InUse", "MemUse", 1239 "HighUse", "Requests"); 1240 for (mtp = memstat_mtl_first(mtlp); mtp != NULL; 1241 mtp = memstat_mtl_next(mtp)) { 1242 if (memstat_get_numallocs(mtp) == 0 && 1243 memstat_get_count(mtp) == 0) 1244 continue; 1245 printf("%13s %5" PRIu64 " %5" PRIu64 "K %7s %8" PRIu64 " ", 1246 memstat_get_name(mtp), memstat_get_count(mtp), 1247 (memstat_get_bytes(mtp) + 1023) / 1024, "-", 1248 memstat_get_numallocs(mtp)); 1249 first = 1; 1250 for (i = 0; i < 32; i++) { 1251 if (memstat_get_sizemask(mtp) & (1 << i)) { 1252 if (!first) 1253 printf(","); 1254 printf("%d", 1 << (i + 4)); 1255 first = 0; 1256 } 1257 } 1258 printf("\n"); 1259 } 1260 memstat_mtl_free(mtlp); 1261} 1262 1263static void 1264domemstat_zone(void) 1265{ 1266 struct memory_type_list *mtlp; 1267 struct memory_type *mtp; 1268 char name[MEMTYPE_MAXNAME + 1]; 1269 int error; 1270 1271 mtlp = memstat_mtl_alloc(); 1272 if (mtlp == NULL) { 1273 warn("memstat_mtl_alloc"); 1274 return; 1275 } 1276 if (kd == NULL) { 1277 if (memstat_sysctl_uma(mtlp, 0) < 0) { 1278 warnx("memstat_sysctl_uma: %s", 1279 memstat_strerror(memstat_mtl_geterror(mtlp))); 1280 return; 1281 } 1282 } else { 1283 if (memstat_kvm_uma(mtlp, kd) < 0) { 1284 error = memstat_mtl_geterror(mtlp); 1285 if (error == MEMSTAT_ERROR_KVM) 1286 warnx("memstat_kvm_uma: %s", 1287 kvm_geterr(kd)); 1288 else 1289 warnx("memstat_kvm_uma: %s", 1290 memstat_strerror(error)); 1291 } 1292 } 1293 printf("%-20s %6s %6s %8s %8s %8s %4s %4s\n\n", "ITEM", "SIZE", 1294 "LIMIT", "USED", "FREE", "REQ", "FAIL", "SLEEP"); 1295 for (mtp = memstat_mtl_first(mtlp); mtp != NULL; 1296 mtp = memstat_mtl_next(mtp)) { 1297 strlcpy(name, memstat_get_name(mtp), MEMTYPE_MAXNAME); 1298 strcat(name, ":"); 1299 printf("%-20s %6" PRIu64 ", %6" PRIu64 ",%8" PRIu64 ",%8" PRIu64 1300 ",%8" PRIu64 ",%4" PRIu64 ",%4" PRIu64 "\n", name, 1301 memstat_get_size(mtp), memstat_get_countlimit(mtp), 1302 memstat_get_count(mtp), memstat_get_free(mtp), 1303 memstat_get_numallocs(mtp), memstat_get_failures(mtp), 1304 memstat_get_sleeps(mtp)); 1305 } 1306 memstat_mtl_free(mtlp); 1307 printf("\n"); 1308} 1309 1310static void 1311display_object(struct kinfo_vmobject *kvo) 1312{ 1313 const char *str; 1314 1315 printf("%5jd ", (uintmax_t)kvo->kvo_resident); 1316 printf("%5jd ", (uintmax_t)kvo->kvo_active); 1317 printf("%5jd ", (uintmax_t)kvo->kvo_inactive); 1318 printf("%3d ", kvo->kvo_ref_count); 1319 printf("%3d ", kvo->kvo_shadow_count); 1320 switch (kvo->kvo_memattr) { 1321#ifdef VM_MEMATTR_UNCACHEABLE 1322 case VM_MEMATTR_UNCACHEABLE: 1323 str = "UC"; 1324 break; 1325#endif 1326#ifdef VM_MEMATTR_WRITE_COMBINING 1327 case VM_MEMATTR_WRITE_COMBINING: 1328 str = "WC"; 1329 break; 1330#endif 1331#ifdef VM_MEMATTR_WRITE_THROUGH 1332 case VM_MEMATTR_WRITE_THROUGH: 1333 str = "WT"; 1334 break; 1335#endif 1336#ifdef VM_MEMATTR_WRITE_PROTECTED 1337 case VM_MEMATTR_WRITE_PROTECTED: 1338 str = "WP"; 1339 break; 1340#endif 1341#ifdef VM_MEMATTR_WRITE_BACK 1342 case VM_MEMATTR_WRITE_BACK: 1343 str = "WB"; 1344 break; 1345#endif 1346#ifdef VM_MEMATTR_WEAK_UNCACHEABLE 1347 case VM_MEMATTR_WEAK_UNCACHEABLE: 1348 str = "UC-"; 1349 break; 1350#endif 1351#ifdef VM_MEMATTR_WB_WA 1352 case VM_MEMATTR_WB_WA: 1353 str = "WB"; 1354 break; 1355#endif 1356#ifdef VM_MEMATTR_NOCACHE 1357 case VM_MEMATTR_NOCACHE: 1358 str = "NC"; 1359 break; 1360#endif 1361#ifdef VM_MEMATTR_DEVICE 1362 case VM_MEMATTR_DEVICE: 1363 str = "DEV"; 1364 break; 1365#endif 1366#ifdef VM_MEMATTR_CACHEABLE 1367 case VM_MEMATTR_CACHEABLE: 1368 str = "C"; 1369 break; 1370#endif 1371#ifdef VM_MEMATTR_PREFETCHABLE 1372 case VM_MEMATTR_PREFETCHABLE: 1373 str = "PRE"; 1374 break; 1375#endif 1376 default: 1377 str = "??"; 1378 break; 1379 } 1380 printf("%-3s ", str); 1381 switch (kvo->kvo_type) { 1382 case KVME_TYPE_NONE: 1383 str = "--"; 1384 break; 1385 case KVME_TYPE_DEFAULT: 1386 str = "df"; 1387 break; 1388 case KVME_TYPE_VNODE: 1389 str = "vn"; 1390 break; 1391 case KVME_TYPE_SWAP: 1392 str = "sw"; 1393 break; 1394 case KVME_TYPE_DEVICE: 1395 str = "dv"; 1396 break; 1397 case KVME_TYPE_PHYS: 1398 str = "ph"; 1399 break; 1400 case KVME_TYPE_DEAD: 1401 str = "dd"; 1402 break; 1403 case KVME_TYPE_SG: 1404 str = "sg"; 1405 break; 1406 case KVME_TYPE_UNKNOWN: 1407 default: 1408 str = "??"; 1409 break; 1410 } 1411 printf("%-2s ", str); 1412 printf("%-s\n", kvo->kvo_path); 1413} 1414 1415static void 1416doobjstat(void) 1417{ 1418 struct kinfo_vmobject *kvo; 1419 int cnt, i; 1420 1421 kvo = kinfo_getvmobject(&cnt); 1422 if (kvo == NULL) { 1423 warn("Failed to fetch VM object list"); 1424 return; 1425 } 1426 printf("%5s %5s %5s %3s %3s %3s %2s %s\n", "RES", "ACT", "INACT", 1427 "REF", "SHD", "CM", "TP", "PATH"); 1428 for (i = 0; i < cnt; i++) 1429 display_object(&kvo[i]); 1430 free(kvo); 1431} 1432 1433/* 1434 * kread reads something from the kernel, given its nlist index. 1435 */ 1436static void 1437kreado(int nlx, void *addr, size_t size, size_t offset) 1438{ 1439 const char *sym; 1440 1441 if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) { 1442 sym = namelist[nlx].n_name; 1443 if (*sym == '_') 1444 ++sym; 1445 errx(1, "symbol %s not defined", sym); 1446 } 1447 if ((size_t)kvm_read(kd, namelist[nlx].n_value + offset, addr, 1448 size) != size) { 1449 sym = namelist[nlx].n_name; 1450 if (*sym == '_') 1451 ++sym; 1452 errx(1, "%s: %s", sym, kvm_geterr(kd)); 1453 } 1454} 1455 1456static void 1457kread(int nlx, void *addr, size_t size) 1458{ 1459 kreado(nlx, addr, size, 0); 1460} 1461 1462static char * 1463kgetstr(const char *strp) 1464{ 1465 int n = 0, size = 1; 1466 char *ret = NULL; 1467 1468 do { 1469 if (size == n + 1) { 1470 ret = realloc(ret, size); 1471 if (ret == NULL) 1472 err(1, "%s: realloc", __func__); 1473 size *= 2; 1474 } 1475 if (kvm_read(kd, (u_long)strp + n, &ret[n], 1) != 1) 1476 errx(1, "%s: %s", __func__, kvm_geterr(kd)); 1477 } while (ret[n++] != '\0'); 1478 return (ret); 1479} 1480 1481static void 1482usage(void) 1483{ 1484 (void)fprintf(stderr, "%s%s", 1485 "usage: vmstat [-afHhimoPsz] [-M core [-N system]] [-c count] [-n devs]\n", 1486 " [-p type,if,pass] [-w wait] [disks] [wait [count]]\n"); 1487 exit(1); 1488} 1489