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 #ifndef lint 41 #if 0 42 static char sccsid[] = "@(#)vmstat.c 8.1 (Berkeley) 6/6/93"; 43 #endif 44 static const char rcsid[] = 45 "$FreeBSD$"; 46 #endif /* not lint */ 47 48 #include <sys/param.h> 49 #include <sys/time.h> 50 #include <sys/proc.h> 51 #include <sys/dkstat.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/sysctl.h> 59 #include <sys/vmmeter.h> 60 61 #include <vm/vm_param.h> 62 63 #include <ctype.h> 64 #include <err.h> 65 #include <errno.h> 66 #include <kvm.h> 67 #include <limits.h> 68 #include <nlist.h> 69 #include <paths.h> 70 #include <stdio.h> 71 #include <stdlib.h> 72 #include <string.h> 73 #include <sysexits.h> 74 #include <time.h> 75 #include <unistd.h> 76 #include <devstat.h> 77 78 struct nlist namelist[] = { 79 #define X_CPTIME 0 80 { "_cp_time" }, 81 #define X_SUM 1 82 { "_cnt" }, 83 #define X_BOOTTIME 2 84 { "_boottime" }, 85 #define X_HZ 3 86 { "_hz" }, 87 #define X_STATHZ 4 88 { "_stathz" }, 89 #define X_NCHSTATS 5 90 { "_nchstats" }, 91 #define X_INTRNAMES 6 92 { "_intrnames" }, 93 #define X_EINTRNAMES 7 94 { "_eintrnames" }, 95 #define X_INTRCNT 8 96 { "_intrcnt" }, 97 #define X_EINTRCNT 9 98 { "_eintrcnt" }, 99 #define X_KMEMSTATISTICS 10 100 { "_kmemstatistics" }, 101 #define X_KMEMBUCKETS 11 102 { "_bucket" }, 103 #define X_ZLIST 12 104 { "_zlist" }, 105 #ifdef notyet 106 #define X_DEFICIT 13 107 { "_deficit" }, 108 #define X_FORKSTAT 14 109 { "_forkstat" }, 110 #define X_REC 15 111 { "_rectime" }, 112 #define X_PGIN 16 113 { "_pgintime" }, 114 #define X_XSTATS 17 115 { "_xstats" }, 116 #define X_END 18 117 #else 118 #define X_END 13 119 #endif 120 { "" }, 121 }; 122 123 struct statinfo cur, last; 124 int num_devices, maxshowdevs; 125 long generation; 126 struct device_selection *dev_select; 127 int num_selected; 128 struct devstat_match *matches; 129 int num_matches = 0; 130 int num_devices_specified, num_selections; 131 long select_generation; 132 char **specified_devices; 133 devstat_select_mode select_mode; 134 135 struct vmmeter sum, osum; 136 137 int winlines = 20; 138 int nflag = 0; 139 140 kvm_t *kd; 141 142 #define FORKSTAT 0x01 143 #define INTRSTAT 0x02 144 #define MEMSTAT 0x04 145 #define SUMSTAT 0x08 146 #define TIMESTAT 0x10 147 #define VMSTAT 0x20 148 #define ZMEMSTAT 0x40 149 150 void cpustats(), dointr(), domem(), dosum(), dozmem(); 151 void dovmstat(), kread(), usage(); 152 #ifdef notyet 153 void dotimes(), doforkst(); 154 #endif 155 void printhdr __P((void)); 156 static void devstats(); 157 158 int 159 main(argc, argv) 160 register int argc; 161 register char **argv; 162 { 163 register int c, todo; 164 u_int interval; 165 int reps; 166 char *memf, *nlistf; 167 char errbuf[_POSIX2_LINE_MAX]; 168 169 memf = nlistf = NULL; 170 interval = reps = todo = 0; 171 maxshowdevs = 2; 172 while ((c = getopt(argc, argv, "c:fiM:mN:n:p:stw:z")) != -1) { 173 switch (c) { 174 case 'c': 175 reps = atoi(optarg); 176 break; 177 case 'f': 178 #ifdef notyet 179 todo |= FORKSTAT; 180 #else 181 errx(EX_USAGE, "sorry, -f is not (re)implemented yet"); 182 #endif 183 break; 184 case 'i': 185 todo |= INTRSTAT; 186 break; 187 case 'M': 188 memf = optarg; 189 break; 190 case 'm': 191 todo |= MEMSTAT; 192 break; 193 case 'N': 194 nlistf = optarg; 195 break; 196 case 'n': 197 nflag = 1; 198 maxshowdevs = atoi(optarg); 199 if (maxshowdevs < 0) 200 errx(1, "number of devices %d is < 0", 201 maxshowdevs); 202 break; 203 case 'p': 204 if (buildmatch(optarg, &matches, &num_matches) != 0) 205 errx(1, "%s", devstat_errbuf); 206 break; 207 case 's': 208 todo |= SUMSTAT; 209 break; 210 case 't': 211 #ifdef notyet 212 todo |= TIMESTAT; 213 #else 214 errx(EX_USAGE, "sorry, -t is not (re)implemented yet"); 215 #endif 216 break; 217 case 'w': 218 interval = atoi(optarg); 219 break; 220 case 'z': 221 todo |= ZMEMSTAT; 222 break; 223 case '?': 224 default: 225 usage(); 226 } 227 } 228 argc -= optind; 229 argv += optind; 230 231 if (todo == 0) 232 todo = VMSTAT; 233 234 /* 235 * Discard setgid privileges if not the running kernel so that bad 236 * guys can't print interesting stuff from kernel memory. 237 */ 238 if (nlistf != NULL || memf != NULL) 239 setgid(getgid()); 240 241 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf); 242 if (kd == 0) 243 errx(1, "kvm_openfiles: %s", errbuf); 244 245 if ((c = kvm_nlist(kd, namelist)) != 0) { 246 if (c > 0) { 247 warnx("undefined symbols:"); 248 for (c = 0; 249 c < sizeof(namelist)/sizeof(namelist[0]); c++) 250 if (namelist[c].n_type == 0) 251 fprintf(stderr, " %s", 252 namelist[c].n_name); 253 (void)fputc('\n', stderr); 254 } else 255 warnx("kvm_nlist: %s", kvm_geterr(kd)); 256 exit(1); 257 } 258 259 if (todo & VMSTAT) { 260 char **getdrivedata(); 261 struct winsize winsize; 262 263 /* 264 * Make sure that the userland devstat version matches the 265 * kernel devstat version. If not, exit and print a 266 * message informing the user of his mistake. 267 */ 268 if (checkversion() < 0) 269 errx(1, "%s", devstat_errbuf); 270 271 272 argv = getdrivedata(argv); 273 winsize.ws_row = 0; 274 (void) ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&winsize); 275 if (winsize.ws_row > 0) 276 winlines = winsize.ws_row; 277 278 } 279 280 #define BACKWARD_COMPATIBILITY 281 #ifdef BACKWARD_COMPATIBILITY 282 if (*argv) { 283 interval = atoi(*argv); 284 if (*++argv) 285 reps = atoi(*argv); 286 } 287 #endif 288 289 if (interval) { 290 if (!reps) 291 reps = -1; 292 } else if (reps) 293 interval = 1; 294 295 #ifdef notyet 296 if (todo & FORKSTAT) 297 doforkst(); 298 #endif 299 if (todo & MEMSTAT) 300 domem(); 301 if (todo & ZMEMSTAT) 302 dozmem(); 303 if (todo & SUMSTAT) 304 dosum(); 305 #ifdef notyet 306 if (todo & TIMESTAT) 307 dotimes(); 308 #endif 309 if (todo & INTRSTAT) 310 dointr(); 311 if (todo & VMSTAT) 312 dovmstat(interval, reps); 313 exit(0); 314 } 315 316 char ** 317 getdrivedata(argv) 318 char **argv; 319 { 320 if ((num_devices = getnumdevs()) < 0) 321 errx(1, "%s", devstat_errbuf); 322 323 cur.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo)); 324 last.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo)); 325 bzero(cur.dinfo, sizeof(struct devinfo)); 326 bzero(last.dinfo, sizeof(struct devinfo)); 327 328 if (getdevs(&cur) == -1) 329 errx(1, "%s", devstat_errbuf); 330 331 num_devices = cur.dinfo->numdevs; 332 generation = cur.dinfo->generation; 333 334 specified_devices = (char **)malloc(sizeof(char *)); 335 for (num_devices_specified = 0; *argv; ++argv) { 336 if (isdigit(**argv)) 337 break; 338 num_devices_specified++; 339 specified_devices = (char **)realloc(specified_devices, 340 sizeof(char *) * 341 num_devices_specified); 342 specified_devices[num_devices_specified - 1] = *argv; 343 } 344 dev_select = NULL; 345 346 if (nflag == 0 && maxshowdevs < num_devices_specified) 347 maxshowdevs = num_devices_specified; 348 349 /* 350 * People are generally only interested in disk statistics when 351 * they're running vmstat. So, that's what we're going to give 352 * them if they don't specify anything by default. We'll also give 353 * them any other random devices in the system so that we get to 354 * maxshowdevs devices, if that many devices exist. If the user 355 * specifies devices on the command line, either through a pattern 356 * match or by naming them explicitly, we will give the user only 357 * those devices. 358 */ 359 if ((num_devices_specified == 0) && (num_matches == 0)) { 360 if (buildmatch("da", &matches, &num_matches) != 0) 361 errx(1, "%s", devstat_errbuf); 362 363 select_mode = DS_SELECT_ADD; 364 } else 365 select_mode = DS_SELECT_ONLY; 366 367 /* 368 * At this point, selectdevs will almost surely indicate that the 369 * device list has changed, so we don't look for return values of 0 370 * or 1. If we get back -1, though, there is an error. 371 */ 372 if (selectdevs(&dev_select, &num_selected, &num_selections, 373 &select_generation, generation, cur.dinfo->devices, 374 num_devices, matches, num_matches, specified_devices, 375 num_devices_specified, select_mode, 376 maxshowdevs, 0) == -1) 377 errx(1, "%s", devstat_errbuf); 378 379 return(argv); 380 } 381 382 long 383 getuptime() 384 { 385 static time_t now, boottime; 386 time_t uptime; 387 388 if (boottime == 0) 389 kread(X_BOOTTIME, &boottime, sizeof(boottime)); 390 (void)time(&now); 391 uptime = now - boottime; 392 if (uptime <= 0 || uptime > 60*60*24*365*10) 393 errx(1, "time makes no sense; namelist must be wrong"); 394 return(uptime); 395 } 396 397 int hz, hdrcnt; 398 399 void 400 dovmstat(interval, reps) 401 u_int interval; 402 int reps; 403 { 404 struct vmtotal total; 405 time_t uptime, halfuptime; 406 struct devinfo *tmp_dinfo; 407 void needhdr(); 408 int mib[2], size; 409 410 uptime = getuptime(); 411 halfuptime = uptime / 2; 412 (void)signal(SIGCONT, needhdr); 413 414 if (namelist[X_STATHZ].n_type != 0 && namelist[X_STATHZ].n_value != 0) 415 kread(X_STATHZ, &hz, sizeof(hz)); 416 if (!hz) 417 kread(X_HZ, &hz, sizeof(hz)); 418 419 for (hdrcnt = 1;;) { 420 if (!--hdrcnt) 421 printhdr(); 422 kread(X_CPTIME, cur.cp_time, sizeof(cur.cp_time)); 423 424 tmp_dinfo = last.dinfo; 425 last.dinfo = cur.dinfo; 426 cur.dinfo = tmp_dinfo; 427 last.busy_time = cur.busy_time; 428 429 /* 430 * Here what we want to do is refresh our device stats. 431 * getdevs() returns 1 when the device list has changed. 432 * If the device list has changed, we want to go through 433 * the selection process again, in case a device that we 434 * were previously displaying has gone away. 435 */ 436 switch (getdevs(&cur)) { 437 case -1: 438 errx(1, "%s", devstat_errbuf); 439 break; 440 case 1: { 441 int retval; 442 443 num_devices = cur.dinfo->numdevs; 444 generation = cur.dinfo->generation; 445 446 retval = selectdevs(&dev_select, &num_selected, 447 &num_selections, &select_generation, 448 generation, cur.dinfo->devices, 449 num_devices, matches, num_matches, 450 specified_devices, 451 num_devices_specified, select_mode, 452 maxshowdevs, 0); 453 switch (retval) { 454 case -1: 455 errx(1, "%s", devstat_errbuf); 456 break; 457 case 1: 458 printhdr(); 459 break; 460 default: 461 break; 462 } 463 } 464 default: 465 break; 466 } 467 468 kread(X_SUM, &sum, sizeof(sum)); 469 size = sizeof(total); 470 mib[0] = CTL_VM; 471 mib[1] = VM_METER; 472 if (sysctl(mib, 2, &total, &size, NULL, 0) < 0) { 473 printf("Can't get kerninfo: %s\n", strerror(errno)); 474 bzero(&total, sizeof(total)); 475 } 476 (void)printf("%2d %1d %1d", 477 total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw); 478 #define vmstat_pgtok(a) ((a) * sum.v_page_size >> 10) 479 #define rate(x) (((x) + halfuptime) / uptime) /* round */ 480 (void)printf(" %7ld %6ld ", 481 (long)vmstat_pgtok(total.t_avm), (long)vmstat_pgtok(total.t_free)); 482 (void)printf("%4lu ", 483 (u_long)rate(sum.v_vm_faults - osum.v_vm_faults)); 484 (void)printf("%3lu ", 485 (u_long)rate(sum.v_reactivated - osum.v_reactivated)); 486 (void)printf("%3lu ", 487 (u_long)rate(sum.v_swapin + sum.v_vnodein - 488 (osum.v_swapin + osum.v_vnodein))); 489 (void)printf("%3lu ", 490 (u_long)rate(sum.v_swapout + sum.v_vnodeout - 491 (osum.v_swapout + osum.v_vnodeout))); 492 (void)printf("%3lu ", 493 (u_long)rate(sum.v_tfree - osum.v_tfree)); 494 (void)printf("%3lu ", 495 (u_long)rate(sum.v_pdpages - osum.v_pdpages)); 496 devstats(); 497 (void)printf("%4lu %4lu %3lu ", 498 (u_long)rate(sum.v_intr - osum.v_intr), 499 (u_long)rate(sum.v_syscall - osum.v_syscall), 500 (u_long)rate(sum.v_swtch - osum.v_swtch)); 501 cpustats(); 502 (void)printf("\n"); 503 (void)fflush(stdout); 504 if (reps >= 0 && --reps <= 0) 505 break; 506 osum = sum; 507 uptime = interval; 508 /* 509 * We round upward to avoid losing low-frequency events 510 * (i.e., >= 1 per interval but < 1 per second). 511 */ 512 if (interval != 1) 513 halfuptime = (uptime + 1) / 2; 514 else 515 halfuptime = 0; 516 (void)sleep(interval); 517 } 518 } 519 520 void 521 printhdr() 522 { 523 int i, num_shown; 524 525 num_shown = (num_selected < maxshowdevs) ? num_selected : maxshowdevs; 526 (void)printf(" procs memory page%*s", 19, ""); 527 if (num_shown > 1) 528 (void)printf(" disks %*s", num_shown * 4 - 7, ""); 529 else if (num_shown == 1) 530 (void)printf("disk"); 531 (void)printf(" faults cpu\n"); 532 (void)printf(" r b w avm fre flt re pi po fr sr "); 533 for (i = 0; i < num_devices; i++) 534 if ((dev_select[i].selected) 535 && (dev_select[i].selected <= maxshowdevs)) 536 (void)printf("%c%c%d ", dev_select[i].device_name[0], 537 dev_select[i].device_name[1], 538 dev_select[i].unit_number); 539 (void)printf(" in sy cs us sy id\n"); 540 hdrcnt = winlines - 2; 541 } 542 543 /* 544 * Force a header to be prepended to the next output. 545 */ 546 void 547 needhdr() 548 { 549 550 hdrcnt = 1; 551 } 552 553 #ifdef notyet 554 void 555 dotimes() 556 { 557 u_int pgintime, rectime; 558 559 kread(X_REC, &rectime, sizeof(rectime)); 560 kread(X_PGIN, &pgintime, sizeof(pgintime)); 561 kread(X_SUM, &sum, sizeof(sum)); 562 (void)printf("%u reclaims, %u total time (usec)\n", 563 sum.v_pgrec, rectime); 564 (void)printf("average: %u usec / reclaim\n", rectime / sum.v_pgrec); 565 (void)printf("\n"); 566 (void)printf("%u page ins, %u total time (msec)\n", 567 sum.v_pgin, pgintime / 10); 568 (void)printf("average: %8.1f msec / page in\n", 569 pgintime / (sum.v_pgin * 10.0)); 570 } 571 #endif 572 573 long 574 pct(top, bot) 575 long top, bot; 576 { 577 long ans; 578 579 if (bot == 0) 580 return(0); 581 ans = (quad_t)top * 100 / bot; 582 return (ans); 583 } 584 585 #define PCT(top, bot) pct((long)(top), (long)(bot)) 586 587 void 588 dosum() 589 { 590 struct nchstats nchstats; 591 long nchtotal; 592 593 kread(X_SUM, &sum, sizeof(sum)); 594 (void)printf("%9u cpu context switches\n", sum.v_swtch); 595 (void)printf("%9u device interrupts\n", sum.v_intr); 596 (void)printf("%9u software interrupts\n", sum.v_soft); 597 (void)printf("%9u traps\n", sum.v_trap); 598 (void)printf("%9u system calls\n", sum.v_syscall); 599 (void)printf("%9u kernel threads created\n", sum.v_kthreads); 600 (void)printf("%9u fork() calls\n", sum.v_forks); 601 (void)printf("%9u vfork() calls\n", sum.v_vforks); 602 (void)printf("%9u rfork() calls\n", sum.v_rforks); 603 (void)printf("%9u swap pager pageins\n", sum.v_swapin); 604 (void)printf("%9u swap pager pages paged in\n", sum.v_swappgsin); 605 (void)printf("%9u swap pager pageouts\n", sum.v_swapout); 606 (void)printf("%9u swap pager pages paged out\n", sum.v_swappgsout); 607 (void)printf("%9u vnode pager pageins\n", sum.v_vnodein); 608 (void)printf("%9u vnode pager pages paged in\n", sum.v_vnodepgsin); 609 (void)printf("%9u vnode pager pageouts\n", sum.v_vnodeout); 610 (void)printf("%9u vnode pager pages paged out\n", sum.v_vnodepgsout); 611 (void)printf("%9u page daemon wakeups\n", sum.v_pdwakeups); 612 (void)printf("%9u pages examined by the page daemon\n", sum.v_pdpages); 613 (void)printf("%9u pages reactivated\n", sum.v_reactivated); 614 (void)printf("%9u copy-on-write faults\n", sum.v_cow_faults); 615 (void)printf("%9u copy-on-write optimized faults\n", sum.v_cow_optim); 616 (void)printf("%9u zero fill pages zeroed\n", sum.v_zfod); 617 (void)printf("%9u zero fill pages prezeroed\n", sum.v_ozfod); 618 (void)printf("%9u intransit blocking page faults\n", sum.v_intrans); 619 (void)printf("%9u total VM faults taken\n", sum.v_vm_faults); 620 (void)printf("%9u pages affected by kernel thread creation\n", sum.v_kthreadpages); 621 (void)printf("%9u pages affected by fork()\n", sum.v_forkpages); 622 (void)printf("%9u pages affected by vfork()\n", sum.v_vforkpages); 623 (void)printf("%9u pages affected by rfork()\n", sum.v_rforkpages); 624 (void)printf("%9u pages freed\n", sum.v_tfree); 625 (void)printf("%9u pages freed by daemon\n", sum.v_dfree); 626 (void)printf("%9u pages freed by exiting processes\n", sum.v_pfree); 627 (void)printf("%9u pages active\n", sum.v_active_count); 628 (void)printf("%9u pages inactive\n", sum.v_inactive_count); 629 (void)printf("%9u pages in VM cache\n", sum.v_cache_count); 630 (void)printf("%9u pages wired down\n", sum.v_wire_count); 631 (void)printf("%9u pages free\n", sum.v_free_count); 632 (void)printf("%9u bytes per page\n", sum.v_page_size); 633 kread(X_NCHSTATS, &nchstats, sizeof(nchstats)); 634 nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits + 635 nchstats.ncs_badhits + nchstats.ncs_falsehits + 636 nchstats.ncs_miss + nchstats.ncs_long; 637 (void)printf("%9ld total name lookups\n", nchtotal); 638 (void)printf( 639 "%9s cache hits (%ld%% pos + %ld%% neg) system %ld%% per-directory\n", 640 "", PCT(nchstats.ncs_goodhits, nchtotal), 641 PCT(nchstats.ncs_neghits, nchtotal), 642 PCT(nchstats.ncs_pass2, nchtotal)); 643 (void)printf("%9s deletions %ld%%, falsehits %ld%%, toolong %ld%%\n", "", 644 PCT(nchstats.ncs_badhits, nchtotal), 645 PCT(nchstats.ncs_falsehits, nchtotal), 646 PCT(nchstats.ncs_long, nchtotal)); 647 } 648 649 #ifdef notyet 650 void 651 doforkst() 652 { 653 struct forkstat fks; 654 655 kread(X_FORKSTAT, &fks, sizeof(struct forkstat)); 656 (void)printf("%d forks, %d pages, average %.2f\n", 657 fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork); 658 (void)printf("%d vforks, %d pages, average %.2f\n", 659 fks.cntvfork, fks.sizvfork, (double)fks.sizvfork / fks.cntvfork); 660 } 661 #endif 662 663 static void 664 devstats() 665 { 666 register int dn, state; 667 long double transfers_per_second; 668 long double busy_seconds; 669 long tmp; 670 671 for (state = 0; state < CPUSTATES; ++state) { 672 tmp = cur.cp_time[state]; 673 cur.cp_time[state] -= last.cp_time[state]; 674 last.cp_time[state] = tmp; 675 } 676 677 busy_seconds = compute_etime(cur.busy_time, last.busy_time); 678 679 for (dn = 0; dn < num_devices; dn++) { 680 int di; 681 682 if ((dev_select[dn].selected == 0) 683 || (dev_select[dn].selected > maxshowdevs)) 684 continue; 685 686 di = dev_select[dn].position; 687 688 if (compute_stats(&cur.dinfo->devices[di], 689 &last.dinfo->devices[di], busy_seconds, 690 NULL, NULL, NULL, 691 NULL, &transfers_per_second, NULL, 692 NULL, NULL) != 0) 693 errx(1, "%s", devstat_errbuf); 694 695 printf("%3.0Lf ", transfers_per_second); 696 } 697 } 698 699 void 700 cpustats() 701 { 702 register int state; 703 double pct, total; 704 705 total = 0; 706 for (state = 0; state < CPUSTATES; ++state) 707 total += cur.cp_time[state]; 708 if (total) 709 pct = 100 / total; 710 else 711 pct = 0; 712 (void)printf("%2.0f ", (cur.cp_time[CP_USER] + 713 cur.cp_time[CP_NICE]) * pct); 714 (void)printf("%2.0f ", (cur.cp_time[CP_SYS] + 715 cur.cp_time[CP_INTR]) * pct); 716 (void)printf("%2.0f", cur.cp_time[CP_IDLE] * pct); 717 } 718 719 void 720 dointr() 721 { 722 register u_long *intrcnt, uptime; 723 register u_int64_t inttotal; 724 register int nintr, inamlen; 725 register char *intrname; 726 727 uptime = getuptime(); 728 nintr = namelist[X_EINTRCNT].n_value - namelist[X_INTRCNT].n_value; 729 inamlen = 730 namelist[X_EINTRNAMES].n_value - namelist[X_INTRNAMES].n_value; 731 intrcnt = malloc((size_t)nintr); 732 intrname = malloc((size_t)inamlen); 733 if (intrcnt == NULL || intrname == NULL) 734 errx(1, "malloc"); 735 kread(X_INTRCNT, intrcnt, (size_t)nintr); 736 kread(X_INTRNAMES, intrname, (size_t)inamlen); 737 (void)printf("interrupt total rate\n"); 738 inttotal = 0; 739 nintr /= sizeof(long); 740 while (--nintr >= 0) { 741 if (*intrcnt) 742 (void)printf("%-12s %20lu %10lu\n", intrname, 743 *intrcnt, *intrcnt / uptime); 744 intrname += strlen(intrname) + 1; 745 inttotal += *intrcnt++; 746 } 747 (void)printf("Total %20llu %10llu\n", inttotal, 748 inttotal / (u_int64_t) uptime); 749 } 750 751 #define MAX_KMSTATS 200 752 753 void 754 domem() 755 { 756 register struct kmembuckets *kp; 757 register struct malloc_type *ks; 758 register int i, j; 759 int len, size, first, nkms; 760 long totuse = 0, totfree = 0, totreq = 0; 761 const char *name; 762 struct malloc_type kmemstats[MAX_KMSTATS], *kmsp; 763 char buf[1024]; 764 struct kmembuckets buckets[MINBUCKET + 16]; 765 766 kread(X_KMEMBUCKETS, buckets, sizeof(buckets)); 767 kread(X_KMEMSTATISTICS, &kmsp, sizeof(kmsp)); 768 for (nkms = 0; nkms < MAX_KMSTATS && kmsp != NULL; nkms++) { 769 if (sizeof(kmemstats[0]) != kvm_read(kd, (u_long)kmsp, 770 &kmemstats[nkms], sizeof(kmemstats[0]))) 771 err(1, "kvm_read(%p)", (void *)kmsp); 772 if (sizeof(buf) != kvm_read(kd, 773 (u_long)kmemstats[nkms].ks_shortdesc, buf, sizeof(buf))) 774 err(1, "kvm_read(%p)", 775 (void *)kmemstats[nkms].ks_shortdesc); 776 buf[sizeof(buf) - 1] = '\0'; 777 kmemstats[nkms].ks_shortdesc = strdup(buf); 778 kmsp = kmemstats[nkms].ks_next; 779 } 780 if (kmsp != NULL) 781 warnx("truncated to the first %d memory types", nkms); 782 (void)printf("Memory statistics by bucket size\n"); 783 (void)printf( 784 "Size In Use Free Requests HighWater Couldfree\n"); 785 for (i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16; i++, kp++) { 786 if (kp->kb_calls == 0) 787 continue; 788 size = 1 << i; 789 if(size < 1024) 790 (void)printf("%4d",size); 791 else 792 (void)printf("%3dK",size>>10); 793 (void)printf(" %8ld %6ld %10lld %7ld %10ld\n", 794 kp->kb_total - kp->kb_totalfree, 795 kp->kb_totalfree, kp->kb_calls, 796 kp->kb_highwat, kp->kb_couldfree); 797 totfree += size * kp->kb_totalfree; 798 } 799 800 (void)printf("\nMemory usage type by bucket size\n"); 801 (void)printf("Size Type(s)\n"); 802 kp = &buckets[MINBUCKET]; 803 for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) { 804 if (kp->kb_calls == 0) 805 continue; 806 first = 1; 807 len = 8; 808 for (i = 0, ks = &kmemstats[0]; i < nkms; i++, ks++) { 809 if (ks->ks_calls == 0) 810 continue; 811 if ((ks->ks_size & j) == 0) 812 continue; 813 name = ks->ks_shortdesc; 814 len += 2 + strlen(name); 815 if (first && j < 1024) 816 printf("%4d %s", j, name); 817 else if (first) 818 printf("%3dK %s", j>>10, name); 819 else 820 printf(","); 821 if (len >= 79) { 822 printf("\n\t "); 823 len = 10 + strlen(name); 824 } 825 if (!first) 826 printf(" %s", name); 827 first = 0; 828 } 829 printf("\n"); 830 } 831 832 (void)printf( 833 "\nMemory statistics by type Type Kern\n"); 834 (void)printf( 835 " Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)\n"); 836 for (i = 0, ks = &kmemstats[0]; i < nkms; i++, ks++) { 837 if (ks->ks_calls == 0) 838 continue; 839 (void)printf("%13s%6ld%6ldK%7ldK%6ldK%9lld%5u%6u", 840 ks->ks_shortdesc, 841 ks->ks_inuse, (ks->ks_memuse + 1023) / 1024, 842 (ks->ks_maxused + 1023) / 1024, 843 (ks->ks_limit + 1023) / 1024, ks->ks_calls, 844 ks->ks_limblocks, ks->ks_mapblocks); 845 first = 1; 846 for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) { 847 if ((ks->ks_size & j) == 0) 848 continue; 849 if (first) 850 printf(" "); 851 else 852 printf(","); 853 if(j<1024) 854 printf("%d",j); 855 else 856 printf("%dK",j>>10); 857 first = 0; 858 } 859 printf("\n"); 860 totuse += ks->ks_memuse; 861 totreq += ks->ks_calls; 862 } 863 (void)printf("\nMemory Totals: In Use Free Requests\n"); 864 (void)printf(" %7ldK %6ldK %8ld\n", 865 (totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq); 866 } 867 868 void 869 dozmem() 870 { 871 char *buf; 872 size_t bufsize; 873 874 buf = NULL; 875 bufsize = 1024; 876 for (;;) { 877 if ((buf = realloc(buf, bufsize)) == NULL) 878 err(1, "realloc()"); 879 if (sysctlbyname("vm.zone", buf, &bufsize, 0, NULL) == 0) 880 break; 881 if (errno != ENOMEM) 882 err(1, "sysctl()"); 883 bufsize *= 2; 884 } 885 buf[bufsize] = '\0'; /* play it safe */ 886 (void)printf("%s\n\n", buf); 887 free(buf); 888 } 889 890 /* 891 * kread reads something from the kernel, given its nlist index. 892 */ 893 void 894 kread(nlx, addr, size) 895 int nlx; 896 void *addr; 897 size_t size; 898 { 899 char *sym; 900 901 if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) { 902 sym = namelist[nlx].n_name; 903 if (*sym == '_') 904 ++sym; 905 errx(1, "symbol %s not defined", sym); 906 } 907 if (kvm_read(kd, namelist[nlx].n_value, addr, size) != size) { 908 sym = namelist[nlx].n_name; 909 if (*sym == '_') 910 ++sym; 911 errx(1, "%s: %s", sym, kvm_geterr(kd)); 912 } 913 } 914 915 void 916 usage() 917 { 918 (void)fprintf(stderr, "%s%s", 919 "usage: vmstat [-imsz] [-c count] [-M core] [-N system] [-w wait]\n", 920 " [-n devs] [disks]\n"); 921 exit(1); 922 } 923