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. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 static const char copyright[] = 36 "@(#) Copyright (c) 1980, 1986, 1991, 1993\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38 #endif /* not lint */ 39 40 #if 0 41 #ifndef lint 42 static char sccsid[] = "@(#)vmstat.c 8.1 (Berkeley) 6/6/93"; 43 #endif /* not lint */ 44 #endif 45 46 #include <sys/cdefs.h> 47 __FBSDID("$FreeBSD$"); 48 49 #include <sys/param.h> 50 #include <sys/time.h> 51 #include <sys/proc.h> 52 #include <sys/uio.h> 53 #include <sys/namei.h> 54 #include <sys/malloc.h> 55 #include <sys/signal.h> 56 #include <sys/fcntl.h> 57 #include <sys/ioctl.h> 58 #include <sys/resource.h> 59 #include <sys/sysctl.h> 60 #include <sys/vmmeter.h> 61 62 #include <vm/vm_param.h> 63 64 #include <ctype.h> 65 #include <devstat.h> 66 #include <err.h> 67 #include <errno.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 80 static char da[] = "da"; 81 82 static struct nlist namelist[] = { 83 #define X_CPTIME 0 84 { "_cp_time" }, 85 #define X_SUM 1 86 { "_cnt" }, 87 #define X_BOOTTIME 2 88 { "_boottime" }, 89 #define X_HZ 3 90 { "_hz" }, 91 #define X_STATHZ 4 92 { "_stathz" }, 93 #define X_NCHSTATS 5 94 { "_nchstats" }, 95 #define X_INTRNAMES 6 96 { "_intrnames" }, 97 #define X_EINTRNAMES 7 98 { "_eintrnames" }, 99 #define X_INTRCNT 8 100 { "_intrcnt" }, 101 #define X_EINTRCNT 9 102 { "_eintrcnt" }, 103 #define X_KMEMSTATS 10 104 { "_kmemstatistics" }, 105 #define X_KMEMZONES 11 106 { "_kmemzones" }, 107 #ifdef notyet 108 #define X_DEFICIT XXX 109 { "_deficit" }, 110 #define X_REC XXX 111 { "_rectime" }, 112 #define X_PGIN XXX 113 { "_pgintime" }, 114 #define X_XSTATS XXX 115 { "_xstats" }, 116 #define X_END XXX 117 #else 118 #define X_END 12 119 #endif 120 { "" }, 121 }; 122 123 static struct statinfo cur, last; 124 static int num_devices, maxshowdevs; 125 static long generation; 126 static struct device_selection *dev_select; 127 static int num_selected; 128 static struct devstat_match *matches; 129 static int num_matches = 0; 130 static int num_devices_specified, num_selections; 131 static long select_generation; 132 static char **specified_devices; 133 static devstat_select_mode select_mode; 134 135 static struct vmmeter sum, osum; 136 137 static int winlines = 20; 138 static int aflag; 139 static int nflag; 140 141 static kvm_t *kd; 142 143 #define FORKSTAT 0x01 144 #define INTRSTAT 0x02 145 #define MEMSTAT 0x04 146 #define SUMSTAT 0x08 147 #define TIMESTAT 0x10 148 #define VMSTAT 0x20 149 #define ZMEMSTAT 0x40 150 151 static void cpustats(void); 152 static void devstats(void); 153 static void doforkst(void); 154 static void dointr(void); 155 static void dosum(void); 156 static void dovmstat(unsigned int, int); 157 static void domemstat_malloc(void); 158 static void domemstat_zone(void); 159 static void kread(int, void *, size_t); 160 static void kreado(int, void *, size_t, size_t); 161 static char *kgetstr(const char *); 162 static void needhdr(int); 163 static void printhdr(void); 164 static void usage(void); 165 166 static long pct(long, long); 167 static long getuptime(void); 168 169 static char **getdrivedata(char **); 170 171 int 172 main(int argc, char *argv[]) 173 { 174 int c, todo; 175 unsigned int interval; 176 int reps; 177 char *memf, *nlistf; 178 char errbuf[_POSIX2_LINE_MAX]; 179 180 memf = nlistf = NULL; 181 interval = reps = todo = 0; 182 maxshowdevs = 2; 183 while ((c = getopt(argc, argv, "ac:fiM:mN:n:p:stw:z")) != -1) { 184 switch (c) { 185 case 'a': 186 aflag++; 187 break; 188 case 'c': 189 reps = atoi(optarg); 190 break; 191 case 'f': 192 todo |= FORKSTAT; 193 break; 194 case 'i': 195 todo |= INTRSTAT; 196 break; 197 case 'M': 198 memf = optarg; 199 break; 200 case 'm': 201 todo |= MEMSTAT; 202 break; 203 case 'N': 204 nlistf = optarg; 205 break; 206 case 'n': 207 nflag = 1; 208 maxshowdevs = atoi(optarg); 209 if (maxshowdevs < 0) 210 errx(1, "number of devices %d is < 0", 211 maxshowdevs); 212 break; 213 case 'p': 214 if (devstat_buildmatch(optarg, &matches, &num_matches) != 0) 215 errx(1, "%s", devstat_errbuf); 216 break; 217 case 's': 218 todo |= SUMSTAT; 219 break; 220 case 't': 221 #ifdef notyet 222 todo |= TIMESTAT; 223 #else 224 errx(EX_USAGE, "sorry, -t is not (re)implemented yet"); 225 #endif 226 break; 227 case 'w': 228 interval = atoi(optarg); 229 break; 230 case 'z': 231 todo |= ZMEMSTAT; 232 break; 233 case '?': 234 default: 235 usage(); 236 } 237 } 238 argc -= optind; 239 argv += optind; 240 241 if (todo == 0) 242 todo = VMSTAT; 243 244 if (memf != NULL) { 245 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf); 246 if (kd == NULL) 247 errx(1, "kvm_openfiles: %s", errbuf); 248 } 249 250 if (kd != NULL && (c = kvm_nlist(kd, namelist)) != 0) { 251 if (c > 0) { 252 warnx("undefined symbols:"); 253 for (c = 0; 254 c < (int)(sizeof(namelist)/sizeof(namelist[0])); 255 c++) 256 if (namelist[c].n_type == 0) 257 (void)fprintf(stderr, " %s", 258 namelist[c].n_name); 259 (void)fputc('\n', stderr); 260 } else 261 warnx("kvm_nlist: %s", kvm_geterr(kd)); 262 exit(1); 263 } 264 265 if (todo & VMSTAT) { 266 struct winsize winsize; 267 268 /* 269 * Make sure that the userland devstat version matches the 270 * kernel devstat version. If not, exit and print a 271 * message informing the user of his mistake. 272 */ 273 if (devstat_checkversion(NULL) < 0) 274 errx(1, "%s", devstat_errbuf); 275 276 277 argv = getdrivedata(argv); 278 winsize.ws_row = 0; 279 (void) ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&winsize); 280 if (winsize.ws_row > 0) 281 winlines = winsize.ws_row; 282 283 } 284 285 #define BACKWARD_COMPATIBILITY 286 #ifdef BACKWARD_COMPATIBILITY 287 if (*argv) { 288 interval = atoi(*argv); 289 if (*++argv) 290 reps = atoi(*argv); 291 } 292 #endif 293 294 if (interval) { 295 if (!reps) 296 reps = -1; 297 } else if (reps) 298 interval = 1; 299 300 if (todo & FORKSTAT) 301 doforkst(); 302 if (todo & MEMSTAT) 303 domemstat_malloc(); 304 if (todo & ZMEMSTAT) 305 domemstat_zone(); 306 if (todo & SUMSTAT) 307 dosum(); 308 #ifdef notyet 309 if (todo & TIMESTAT) 310 dotimes(); 311 #endif 312 if (todo & INTRSTAT) 313 dointr(); 314 if (todo & VMSTAT) 315 dovmstat(interval, reps); 316 exit(0); 317 } 318 319 static int 320 mysysctl(const char *name, void *oldp, size_t *oldlenp, 321 void *newp, size_t newlen) 322 { 323 int error; 324 325 error = sysctlbyname(name, oldp, oldlenp, newp, newlen); 326 if (error != 0 && errno != ENOMEM) 327 err(1, "sysctl(%s)", name); 328 return (error); 329 } 330 331 static char ** 332 getdrivedata(char **argv) 333 { 334 if ((num_devices = devstat_getnumdevs(NULL)) < 0) 335 errx(1, "%s", devstat_errbuf); 336 337 cur.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo)); 338 last.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo)); 339 bzero(cur.dinfo, sizeof(struct devinfo)); 340 bzero(last.dinfo, sizeof(struct devinfo)); 341 342 if (devstat_getdevs(NULL, &cur) == -1) 343 errx(1, "%s", devstat_errbuf); 344 345 num_devices = cur.dinfo->numdevs; 346 generation = cur.dinfo->generation; 347 348 specified_devices = (char **)malloc(sizeof(char *)); 349 for (num_devices_specified = 0; *argv; ++argv) { 350 if (isdigit(**argv)) 351 break; 352 num_devices_specified++; 353 specified_devices = (char **)realloc(specified_devices, 354 sizeof(char *) * 355 num_devices_specified); 356 specified_devices[num_devices_specified - 1] = *argv; 357 } 358 dev_select = NULL; 359 360 if (nflag == 0 && maxshowdevs < num_devices_specified) 361 maxshowdevs = num_devices_specified; 362 363 /* 364 * People are generally only interested in disk statistics when 365 * they're running vmstat. So, that's what we're going to give 366 * them if they don't specify anything by default. We'll also give 367 * them any other random devices in the system so that we get to 368 * maxshowdevs devices, if that many devices exist. If the user 369 * specifies devices on the command line, either through a pattern 370 * match or by naming them explicitly, we will give the user only 371 * those devices. 372 */ 373 if ((num_devices_specified == 0) && (num_matches == 0)) { 374 if (devstat_buildmatch(da, &matches, &num_matches) != 0) 375 errx(1, "%s", devstat_errbuf); 376 377 select_mode = DS_SELECT_ADD; 378 } else 379 select_mode = DS_SELECT_ONLY; 380 381 /* 382 * At this point, selectdevs will almost surely indicate that the 383 * device list has changed, so we don't look for return values of 0 384 * or 1. If we get back -1, though, there is an error. 385 */ 386 if (devstat_selectdevs(&dev_select, &num_selected, &num_selections, 387 &select_generation, generation, cur.dinfo->devices, 388 num_devices, matches, num_matches, specified_devices, 389 num_devices_specified, select_mode, 390 maxshowdevs, 0) == -1) 391 errx(1, "%s", devstat_errbuf); 392 393 return(argv); 394 } 395 396 static long 397 getuptime(void) 398 { 399 struct timespec sp; 400 time_t uptime; 401 402 (void)clock_gettime(CLOCK_MONOTONIC, &sp); 403 uptime = sp.tv_sec; 404 if (uptime <= 0 || uptime > 60*60*24*365*10) 405 errx(1, "time makes no sense; namelist must be wrong"); 406 407 return(uptime); 408 } 409 410 static void 411 fill_vmmeter(struct vmmeter *vmmp) 412 { 413 if (kd != NULL) { 414 kread(X_SUM, vmmp, sizeof(*vmmp)); 415 } else { 416 size_t size = sizeof(unsigned int); 417 #define GET_VM_STATS(cat, name) \ 418 mysysctl("vm.stats." #cat "." #name, &vmmp->name, &size, NULL, 0) 419 /* sys */ 420 GET_VM_STATS(sys, v_swtch); 421 GET_VM_STATS(sys, v_trap); 422 GET_VM_STATS(sys, v_syscall); 423 GET_VM_STATS(sys, v_intr); 424 GET_VM_STATS(sys, v_soft); 425 426 /* vm */ 427 GET_VM_STATS(vm, v_vm_faults); 428 GET_VM_STATS(vm, v_cow_faults); 429 GET_VM_STATS(vm, v_cow_optim); 430 GET_VM_STATS(vm, v_zfod); 431 GET_VM_STATS(vm, v_ozfod); 432 GET_VM_STATS(vm, v_swapin); 433 GET_VM_STATS(vm, v_swapout); 434 GET_VM_STATS(vm, v_swappgsin); 435 GET_VM_STATS(vm, v_swappgsout); 436 GET_VM_STATS(vm, v_vnodein); 437 GET_VM_STATS(vm, v_vnodeout); 438 GET_VM_STATS(vm, v_vnodepgsin); 439 GET_VM_STATS(vm, v_vnodepgsout); 440 GET_VM_STATS(vm, v_intrans); 441 GET_VM_STATS(vm, v_reactivated); 442 GET_VM_STATS(vm, v_pdwakeups); 443 GET_VM_STATS(vm, v_pdpages); 444 GET_VM_STATS(vm, v_dfree); 445 GET_VM_STATS(vm, v_pfree); 446 GET_VM_STATS(vm, v_tfree); 447 GET_VM_STATS(vm, v_page_size); 448 GET_VM_STATS(vm, v_page_count); 449 GET_VM_STATS(vm, v_free_reserved); 450 GET_VM_STATS(vm, v_free_target); 451 GET_VM_STATS(vm, v_free_min); 452 GET_VM_STATS(vm, v_free_count); 453 GET_VM_STATS(vm, v_wire_count); 454 GET_VM_STATS(vm, v_active_count); 455 GET_VM_STATS(vm, v_inactive_target); 456 GET_VM_STATS(vm, v_inactive_count); 457 GET_VM_STATS(vm, v_cache_count); 458 GET_VM_STATS(vm, v_cache_min); 459 GET_VM_STATS(vm, v_cache_max); 460 GET_VM_STATS(vm, v_pageout_free_min); 461 GET_VM_STATS(vm, v_interrupt_free_min); 462 /*GET_VM_STATS(vm, v_free_severe);*/ 463 GET_VM_STATS(vm, v_forks); 464 GET_VM_STATS(vm, v_vforks); 465 GET_VM_STATS(vm, v_rforks); 466 GET_VM_STATS(vm, v_kthreads); 467 GET_VM_STATS(vm, v_forkpages); 468 GET_VM_STATS(vm, v_vforkpages); 469 GET_VM_STATS(vm, v_rforkpages); 470 GET_VM_STATS(vm, v_kthreadpages); 471 #undef GET_VM_STATS 472 } 473 } 474 475 static void 476 fill_vmtotal(struct vmtotal *vmtp) 477 { 478 if (kd != NULL) { 479 /* XXX fill vmtp */ 480 errx(1, "not implemented"); 481 } else { 482 size_t size = sizeof(*vmtp); 483 mysysctl("vm.vmtotal", vmtp, &size, NULL, 0); 484 if (size != sizeof(*vmtp)) 485 errx(1, "vm.total size mismatch"); 486 } 487 } 488 489 static int hz, hdrcnt; 490 491 static void 492 dovmstat(unsigned int interval, int reps) 493 { 494 struct vmtotal total; 495 time_t uptime, halfuptime; 496 struct devinfo *tmp_dinfo; 497 size_t size; 498 499 uptime = getuptime(); 500 halfuptime = uptime / 2; 501 (void)signal(SIGCONT, needhdr); 502 503 if (kd != NULL) { 504 if (namelist[X_STATHZ].n_type != 0 && 505 namelist[X_STATHZ].n_value != 0) 506 kread(X_STATHZ, &hz, sizeof(hz)); 507 if (!hz) 508 kread(X_HZ, &hz, sizeof(hz)); 509 } else { 510 struct clockinfo clockrate; 511 512 size = sizeof(clockrate); 513 mysysctl("kern.clockrate", &clockrate, &size, NULL, 0); 514 if (size != sizeof(clockrate)) 515 errx(1, "clockrate size mismatch"); 516 hz = clockrate.hz; 517 } 518 519 for (hdrcnt = 1;;) { 520 if (!--hdrcnt) 521 printhdr(); 522 if (kd != NULL) { 523 kread(X_CPTIME, cur.cp_time, sizeof(cur.cp_time)); 524 } else { 525 size = sizeof(cur.cp_time); 526 mysysctl("kern.cp_time", &cur.cp_time, &size, NULL, 0); 527 if (size != sizeof(cur.cp_time)) 528 errx(1, "cp_time size mismatch"); 529 } 530 531 tmp_dinfo = last.dinfo; 532 last.dinfo = cur.dinfo; 533 cur.dinfo = tmp_dinfo; 534 last.snap_time = cur.snap_time; 535 536 /* 537 * Here what we want to do is refresh our device stats. 538 * getdevs() returns 1 when the device list has changed. 539 * If the device list has changed, we want to go through 540 * the selection process again, in case a device that we 541 * were previously displaying has gone away. 542 */ 543 switch (devstat_getdevs(NULL, &cur)) { 544 case -1: 545 errx(1, "%s", devstat_errbuf); 546 break; 547 case 1: { 548 int retval; 549 550 num_devices = cur.dinfo->numdevs; 551 generation = cur.dinfo->generation; 552 553 retval = devstat_selectdevs(&dev_select, &num_selected, 554 &num_selections, &select_generation, 555 generation, cur.dinfo->devices, 556 num_devices, matches, num_matches, 557 specified_devices, 558 num_devices_specified, select_mode, 559 maxshowdevs, 0); 560 switch (retval) { 561 case -1: 562 errx(1, "%s", devstat_errbuf); 563 break; 564 case 1: 565 printhdr(); 566 break; 567 default: 568 break; 569 } 570 } 571 default: 572 break; 573 } 574 575 fill_vmmeter(&sum); 576 fill_vmtotal(&total); 577 (void)printf("%2d %1d %1d", 578 total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw); 579 #define vmstat_pgtok(a) ((a) * (sum.v_page_size >> 10)) 580 #define rate(x) (((x) + halfuptime) / uptime) /* round */ 581 (void)printf(" %7d %6d ", vmstat_pgtok(total.t_avm), 582 vmstat_pgtok(total.t_free)); 583 (void)printf("%5lu ", 584 (unsigned long)rate(sum.v_vm_faults - osum.v_vm_faults)); 585 (void)printf("%3lu ", 586 (unsigned long)rate(sum.v_reactivated - osum.v_reactivated)); 587 (void)printf("%3lu ", 588 (unsigned long)rate(sum.v_swapin + sum.v_vnodein - 589 (osum.v_swapin + osum.v_vnodein))); 590 (void)printf("%3lu ", 591 (unsigned long)rate(sum.v_swapout + sum.v_vnodeout - 592 (osum.v_swapout + osum.v_vnodeout))); 593 (void)printf("%5lu ", 594 (unsigned long)rate(sum.v_tfree - osum.v_tfree)); 595 (void)printf("%3lu ", 596 (unsigned long)rate(sum.v_pdpages - osum.v_pdpages)); 597 devstats(); 598 (void)printf("%4lu %4lu %4lu ", 599 (unsigned long)rate(sum.v_intr - osum.v_intr), 600 (unsigned long)rate(sum.v_syscall - osum.v_syscall), 601 (unsigned long)rate(sum.v_swtch - osum.v_swtch)); 602 cpustats(); 603 (void)printf("\n"); 604 (void)fflush(stdout); 605 if (reps >= 0 && --reps <= 0) 606 break; 607 osum = sum; 608 uptime = interval; 609 /* 610 * We round upward to avoid losing low-frequency events 611 * (i.e., >= 1 per interval but < 1 per second). 612 */ 613 if (interval != 1) 614 halfuptime = (uptime + 1) / 2; 615 else 616 halfuptime = 0; 617 (void)sleep(interval); 618 } 619 } 620 621 static void 622 printhdr(void) 623 { 624 int i, num_shown; 625 626 num_shown = (num_selected < maxshowdevs) ? num_selected : maxshowdevs; 627 (void)printf(" procs memory page%*s", 19, ""); 628 if (num_shown > 1) 629 (void)printf(" disks %*s", num_shown * 4 - 7, ""); 630 else if (num_shown == 1) 631 (void)printf("disk"); 632 (void)printf(" faults cpu\n"); 633 (void)printf(" r b w avm fre flt re pi po fr sr "); 634 for (i = 0; i < num_devices; i++) 635 if ((dev_select[i].selected) 636 && (dev_select[i].selected <= maxshowdevs)) 637 (void)printf("%c%c%d ", dev_select[i].device_name[0], 638 dev_select[i].device_name[1], 639 dev_select[i].unit_number); 640 (void)printf(" in sy cs us sy id\n"); 641 hdrcnt = winlines - 2; 642 } 643 644 /* 645 * Force a header to be prepended to the next output. 646 */ 647 static void 648 needhdr(int dummy __unused) 649 { 650 651 hdrcnt = 1; 652 } 653 654 #ifdef notyet 655 static void 656 dotimes(void) 657 { 658 unsigned int pgintime, rectime; 659 660 kread(X_REC, &rectime, sizeof(rectime)); 661 kread(X_PGIN, &pgintime, sizeof(pgintime)); 662 kread(X_SUM, &sum, sizeof(sum)); 663 (void)printf("%u reclaims, %u total time (usec)\n", 664 sum.v_pgrec, rectime); 665 (void)printf("average: %u usec / reclaim\n", rectime / sum.v_pgrec); 666 (void)printf("\n"); 667 (void)printf("%u page ins, %u total time (msec)\n", 668 sum.v_pgin, pgintime / 10); 669 (void)printf("average: %8.1f msec / page in\n", 670 pgintime / (sum.v_pgin * 10.0)); 671 } 672 #endif 673 674 static long 675 pct(long top, long bot) 676 { 677 long ans; 678 679 if (bot == 0) 680 return(0); 681 ans = (quad_t)top * 100 / bot; 682 return (ans); 683 } 684 685 #define PCT(top, bot) pct((long)(top), (long)(bot)) 686 687 static void 688 dosum(void) 689 { 690 struct nchstats lnchstats; 691 long nchtotal; 692 693 fill_vmmeter(&sum); 694 (void)printf("%9u cpu context switches\n", sum.v_swtch); 695 (void)printf("%9u device interrupts\n", sum.v_intr); 696 (void)printf("%9u software interrupts\n", sum.v_soft); 697 (void)printf("%9u traps\n", sum.v_trap); 698 (void)printf("%9u system calls\n", sum.v_syscall); 699 (void)printf("%9u kernel threads created\n", sum.v_kthreads); 700 (void)printf("%9u fork() calls\n", sum.v_forks); 701 (void)printf("%9u vfork() calls\n", sum.v_vforks); 702 (void)printf("%9u rfork() calls\n", sum.v_rforks); 703 (void)printf("%9u swap pager pageins\n", sum.v_swapin); 704 (void)printf("%9u swap pager pages paged in\n", sum.v_swappgsin); 705 (void)printf("%9u swap pager pageouts\n", sum.v_swapout); 706 (void)printf("%9u swap pager pages paged out\n", sum.v_swappgsout); 707 (void)printf("%9u vnode pager pageins\n", sum.v_vnodein); 708 (void)printf("%9u vnode pager pages paged in\n", sum.v_vnodepgsin); 709 (void)printf("%9u vnode pager pageouts\n", sum.v_vnodeout); 710 (void)printf("%9u vnode pager pages paged out\n", sum.v_vnodepgsout); 711 (void)printf("%9u page daemon wakeups\n", sum.v_pdwakeups); 712 (void)printf("%9u pages examined by the page daemon\n", sum.v_pdpages); 713 (void)printf("%9u pages reactivated\n", sum.v_reactivated); 714 (void)printf("%9u copy-on-write faults\n", sum.v_cow_faults); 715 (void)printf("%9u copy-on-write optimized faults\n", sum.v_cow_optim); 716 (void)printf("%9u zero fill pages zeroed\n", sum.v_zfod); 717 (void)printf("%9u zero fill pages prezeroed\n", sum.v_ozfod); 718 (void)printf("%9u intransit blocking page faults\n", sum.v_intrans); 719 (void)printf("%9u total VM faults taken\n", sum.v_vm_faults); 720 (void)printf("%9u pages affected by kernel thread creation\n", sum.v_kthreadpages); 721 (void)printf("%9u pages affected by fork()\n", sum.v_forkpages); 722 (void)printf("%9u pages affected by vfork()\n", sum.v_vforkpages); 723 (void)printf("%9u pages affected by rfork()\n", sum.v_rforkpages); 724 (void)printf("%9u pages freed\n", sum.v_tfree); 725 (void)printf("%9u pages freed by daemon\n", sum.v_dfree); 726 (void)printf("%9u pages freed by exiting processes\n", sum.v_pfree); 727 (void)printf("%9u pages active\n", sum.v_active_count); 728 (void)printf("%9u pages inactive\n", sum.v_inactive_count); 729 (void)printf("%9u pages in VM cache\n", sum.v_cache_count); 730 (void)printf("%9u pages wired down\n", sum.v_wire_count); 731 (void)printf("%9u pages free\n", sum.v_free_count); 732 (void)printf("%9u bytes per page\n", sum.v_page_size); 733 if (kd != NULL) { 734 kread(X_NCHSTATS, &lnchstats, sizeof(lnchstats)); 735 } else { 736 size_t size = sizeof(lnchstats); 737 mysysctl("vfs.cache.nchstats", &lnchstats, &size, NULL, 0); 738 if (size != sizeof(lnchstats)) 739 errx(1, "vfs.cache.nchstats size mismatch"); 740 } 741 nchtotal = lnchstats.ncs_goodhits + lnchstats.ncs_neghits + 742 lnchstats.ncs_badhits + lnchstats.ncs_falsehits + 743 lnchstats.ncs_miss + lnchstats.ncs_long; 744 (void)printf("%9ld total name lookups\n", nchtotal); 745 (void)printf( 746 "%9s cache hits (%ld%% pos + %ld%% neg) system %ld%% per-directory\n", 747 "", PCT(lnchstats.ncs_goodhits, nchtotal), 748 PCT(lnchstats.ncs_neghits, nchtotal), 749 PCT(lnchstats.ncs_pass2, nchtotal)); 750 (void)printf("%9s deletions %ld%%, falsehits %ld%%, toolong %ld%%\n", "", 751 PCT(lnchstats.ncs_badhits, nchtotal), 752 PCT(lnchstats.ncs_falsehits, nchtotal), 753 PCT(lnchstats.ncs_long, nchtotal)); 754 } 755 756 static void 757 doforkst(void) 758 { 759 fill_vmmeter(&sum); 760 (void)printf("%u forks, %u pages, average %.2f\n", 761 sum.v_forks, sum.v_forkpages, 762 sum.v_forks == 0 ? 0.0 : 763 (double)sum.v_forkpages / sum.v_forks); 764 (void)printf("%u vforks, %u pages, average %.2f\n", 765 sum.v_vforks, sum.v_vforkpages, 766 sum.v_vforks == 0 ? 0.0 : 767 (double)sum.v_vforkpages / sum.v_vforks); 768 (void)printf("%u rforks, %u pages, average %.2f\n", 769 sum.v_rforks, sum.v_rforkpages, 770 sum.v_rforks == 0 ? 0.0 : 771 (double)sum.v_rforkpages / sum.v_rforks); 772 } 773 774 static void 775 devstats(void) 776 { 777 int dn, state; 778 long double transfers_per_second; 779 long double busy_seconds; 780 long tmp; 781 782 for (state = 0; state < CPUSTATES; ++state) { 783 tmp = cur.cp_time[state]; 784 cur.cp_time[state] -= last.cp_time[state]; 785 last.cp_time[state] = tmp; 786 } 787 788 busy_seconds = cur.snap_time - last.snap_time; 789 790 for (dn = 0; dn < num_devices; dn++) { 791 int di; 792 793 if ((dev_select[dn].selected == 0) 794 || (dev_select[dn].selected > maxshowdevs)) 795 continue; 796 797 di = dev_select[dn].position; 798 799 if (devstat_compute_statistics(&cur.dinfo->devices[di], 800 &last.dinfo->devices[di], busy_seconds, 801 DSM_TRANSFERS_PER_SECOND, &transfers_per_second, 802 DSM_NONE) != 0) 803 errx(1, "%s", devstat_errbuf); 804 805 (void)printf("%3.0Lf ", transfers_per_second); 806 } 807 } 808 809 static void 810 cpustats(void) 811 { 812 int state; 813 double lpct, total; 814 815 total = 0; 816 for (state = 0; state < CPUSTATES; ++state) 817 total += cur.cp_time[state]; 818 if (total) 819 lpct = 100.0 / total; 820 else 821 lpct = 0.0; 822 (void)printf("%2.0f ", (cur.cp_time[CP_USER] + 823 cur.cp_time[CP_NICE]) * lpct); 824 (void)printf("%2.0f ", (cur.cp_time[CP_SYS] + 825 cur.cp_time[CP_INTR]) * lpct); 826 (void)printf("%2.0f", cur.cp_time[CP_IDLE] * lpct); 827 } 828 829 static void 830 dointr(void) 831 { 832 unsigned long *intrcnt, uptime; 833 uint64_t inttotal; 834 size_t clen, inamlen, intrcntlen, istrnamlen; 835 unsigned int i, nintr; 836 char *intrname, *tintrname; 837 838 uptime = getuptime(); 839 if (kd != NULL) { 840 intrcntlen = namelist[X_EINTRCNT].n_value - 841 namelist[X_INTRCNT].n_value; 842 inamlen = namelist[X_EINTRNAMES].n_value - 843 namelist[X_INTRNAMES].n_value; 844 if ((intrcnt = malloc(intrcntlen)) == NULL || 845 (intrname = malloc(inamlen)) == NULL) 846 err(1, "malloc()"); 847 kread(X_INTRCNT, intrcnt, intrcntlen); 848 kread(X_INTRNAMES, intrname, inamlen); 849 } else { 850 for (intrcnt = NULL, intrcntlen = 1024; ; intrcntlen *= 2) { 851 if ((intrcnt = reallocf(intrcnt, intrcntlen)) == NULL) 852 err(1, "reallocf()"); 853 if (mysysctl("hw.intrcnt", 854 intrcnt, &intrcntlen, NULL, 0) == 0) 855 break; 856 } 857 for (intrname = NULL, inamlen = 1024; ; inamlen *= 2) { 858 if ((intrname = reallocf(intrname, inamlen)) == NULL) 859 err(1, "reallocf()"); 860 if (mysysctl("hw.intrnames", 861 intrname, &inamlen, NULL, 0) == 0) 862 break; 863 } 864 } 865 nintr = intrcntlen / sizeof(unsigned long); 866 tintrname = intrname; 867 istrnamlen = strlen("interrupt"); 868 for (i = 0; i < nintr; i++) { 869 clen = strlen(tintrname); 870 if (clen > istrnamlen) 871 istrnamlen = clen; 872 tintrname += clen + 1; 873 } 874 (void)printf("%-*s %20s %10s\n", istrnamlen, "interrupt", "total", 875 "rate"); 876 inttotal = 0; 877 for (i = 0; i < nintr; i++) { 878 if (intrname[0] != '\0' && (*intrcnt != 0 || aflag)) 879 (void)printf("%-*s %20lu %10lu\n", istrnamlen, intrname, 880 *intrcnt, *intrcnt / uptime); 881 intrname += strlen(intrname) + 1; 882 inttotal += *intrcnt++; 883 } 884 (void)printf("%-*s %20llu %10llu\n", istrnamlen, "Total", 885 (long long)inttotal, (long long)(inttotal / uptime)); 886 } 887 888 static void 889 domemstat_malloc(void) 890 { 891 struct memory_type_list *mtlp; 892 struct memory_type *mtp; 893 int error, first, i; 894 895 mtlp = memstat_mtl_alloc(); 896 if (mtlp == NULL) { 897 warn("memstat_mtl_alloc"); 898 return; 899 } 900 if (kd == NULL) { 901 if (memstat_sysctl_malloc(mtlp, 0) < 0) { 902 warnx("memstat_sysctl_malloc: %s", 903 memstat_strerror(memstat_mtl_geterror(mtlp))); 904 return; 905 } 906 } else { 907 if (memstat_kvm_malloc(mtlp, kd) < 0) { 908 error = memstat_mtl_geterror(mtlp); 909 if (error == MEMSTAT_ERROR_KVM) 910 warnx("memstat_kvm_malloc: %s", 911 kvm_geterr(kd)); 912 else 913 warnx("memstat_kvm_malloc: %s", 914 memstat_strerror(error)); 915 } 916 } 917 printf("%13s %5s %6s %7s %8s Size(s)\n", "Type", "InUse", "MemUse", 918 "HighUse", "Requests"); 919 for (mtp = memstat_mtl_first(mtlp); mtp != NULL; 920 mtp = memstat_mtl_next(mtp)) { 921 if (memstat_get_numallocs(mtp) == 0 && 922 memstat_get_count(mtp) == 0) 923 continue; 924 printf("%13s %5lld %5lldK %7s %8lld ", 925 memstat_get_name(mtp), memstat_get_count(mtp), 926 ((int64_t)memstat_get_bytes(mtp) + 1023) / 1024, "-", 927 memstat_get_numallocs(mtp)); 928 first = 1; 929 for (i = 0; i < 32; i++) { 930 if (memstat_get_sizemask(mtp) & (1 << i)) { 931 if (!first) 932 printf(","); 933 printf("%d", 1 << (i + 4)); 934 first = 0; 935 } 936 } 937 printf("\n"); 938 } 939 memstat_mtl_free(mtlp); 940 } 941 942 static void 943 domemstat_zone(void) 944 { 945 struct memory_type_list *mtlp; 946 struct memory_type *mtp; 947 char name[MEMTYPE_MAXNAME + 1]; 948 int error; 949 950 mtlp = memstat_mtl_alloc(); 951 if (mtlp == NULL) { 952 warn("memstat_mtl_alloc"); 953 return; 954 } 955 if (kd == NULL) { 956 if (memstat_sysctl_uma(mtlp, 0) < 0) { 957 warnx("memstat_sysctl_uma: %s", 958 memstat_strerror(memstat_mtl_geterror(mtlp))); 959 return; 960 } 961 } else { 962 if (memstat_kvm_uma(mtlp, kd) < 0) { 963 error = memstat_mtl_geterror(mtlp); 964 if (error == MEMSTAT_ERROR_KVM) 965 warnx("memstat_kvm_uma: %s", 966 kvm_geterr(kd)); 967 else 968 warnx("memstat_kvm_uma: %s", 969 memstat_strerror(error)); 970 } 971 } 972 printf("%-20s %8s %8s %8s %8s %8s %8s\n\n", "ITEM", "SIZE", 973 "LIMIT", "USED", "FREE", "REQUESTS", "FAILURES"); 974 for (mtp = memstat_mtl_first(mtlp); mtp != NULL; 975 mtp = memstat_mtl_next(mtp)) { 976 strlcpy(name, memstat_get_name(mtp), MEMTYPE_MAXNAME); 977 strcat(name, ":"); 978 printf("%-20s %8llu, %8llu, %8llu, %8llu, %8llu, %8llu\n", name, 979 memstat_get_size(mtp), memstat_get_countlimit(mtp), 980 memstat_get_count(mtp), memstat_get_free(mtp), 981 memstat_get_numallocs(mtp), memstat_get_failures(mtp)); 982 } 983 memstat_mtl_free(mtlp); 984 printf("\n"); 985 } 986 987 /* 988 * kread reads something from the kernel, given its nlist index. 989 */ 990 static void 991 kreado(int nlx, void *addr, size_t size, size_t offset) 992 { 993 const char *sym; 994 995 if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) { 996 sym = namelist[nlx].n_name; 997 if (*sym == '_') 998 ++sym; 999 errx(1, "symbol %s not defined", sym); 1000 } 1001 if ((size_t)kvm_read(kd, namelist[nlx].n_value + offset, addr, 1002 size) != size) { 1003 sym = namelist[nlx].n_name; 1004 if (*sym == '_') 1005 ++sym; 1006 errx(1, "%s: %s", sym, kvm_geterr(kd)); 1007 } 1008 } 1009 1010 static void 1011 kread(int nlx, void *addr, size_t size) 1012 { 1013 kreado(nlx, addr, size, 0); 1014 } 1015 1016 static char * 1017 kgetstr(const char *strp) 1018 { 1019 int n = 0, size = 1; 1020 char *ret = NULL; 1021 1022 do { 1023 if (size == n + 1) { 1024 ret = realloc(ret, size); 1025 if (ret == NULL) 1026 err(1, "%s: realloc", __func__); 1027 size *= 2; 1028 } 1029 if (kvm_read(kd, (u_long)strp + n, &ret[n], 1) != 1) 1030 errx(1, "%s: %s", __func__, kvm_geterr(kd)); 1031 } while (ret[n++] != '\0'); 1032 return (ret); 1033 } 1034 1035 static void 1036 usage(void) 1037 { 1038 (void)fprintf(stderr, "%s%s", 1039 "usage: vmstat [-afimsz] [-c count] [-M core [-N system]] [-w wait]\n", 1040 " [-n devs] [-p type,if,pass] [disks]\n"); 1041 exit(1); 1042 } 1043