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]; 409 size_t size; 410 411 uptime = getuptime(); 412 halfuptime = uptime / 2; 413 (void)signal(SIGCONT, needhdr); 414 415 if (namelist[X_STATHZ].n_type != 0 && namelist[X_STATHZ].n_value != 0) 416 kread(X_STATHZ, &hz, sizeof(hz)); 417 if (!hz) 418 kread(X_HZ, &hz, sizeof(hz)); 419 420 for (hdrcnt = 1;;) { 421 if (!--hdrcnt) 422 printhdr(); 423 kread(X_CPTIME, cur.cp_time, sizeof(cur.cp_time)); 424 425 tmp_dinfo = last.dinfo; 426 last.dinfo = cur.dinfo; 427 cur.dinfo = tmp_dinfo; 428 last.busy_time = cur.busy_time; 429 430 /* 431 * Here what we want to do is refresh our device stats. 432 * getdevs() returns 1 when the device list has changed. 433 * If the device list has changed, we want to go through 434 * the selection process again, in case a device that we 435 * were previously displaying has gone away. 436 */ 437 switch (getdevs(&cur)) { 438 case -1: 439 errx(1, "%s", devstat_errbuf); 440 break; 441 case 1: { 442 int retval; 443 444 num_devices = cur.dinfo->numdevs; 445 generation = cur.dinfo->generation; 446 447 retval = selectdevs(&dev_select, &num_selected, 448 &num_selections, &select_generation, 449 generation, cur.dinfo->devices, 450 num_devices, matches, num_matches, 451 specified_devices, 452 num_devices_specified, select_mode, 453 maxshowdevs, 0); 454 switch (retval) { 455 case -1: 456 errx(1, "%s", devstat_errbuf); 457 break; 458 case 1: 459 printhdr(); 460 break; 461 default: 462 break; 463 } 464 } 465 default: 466 break; 467 } 468 469 kread(X_SUM, &sum, sizeof(sum)); 470 size = sizeof(total); 471 mib[0] = CTL_VM; 472 mib[1] = VM_METER; 473 if (sysctl(mib, 2, &total, &size, NULL, 0) < 0) { 474 printf("Can't get kerninfo: %s\n", strerror(errno)); 475 bzero(&total, sizeof(total)); 476 } 477 (void)printf("%2d %1d %1d", 478 total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw); 479 #define vmstat_pgtok(a) ((a) * sum.v_page_size >> 10) 480 #define rate(x) (((x) + halfuptime) / uptime) /* round */ 481 (void)printf(" %7ld %6ld ", 482 (long)vmstat_pgtok(total.t_avm), (long)vmstat_pgtok(total.t_free)); 483 (void)printf("%4lu ", 484 (u_long)rate(sum.v_vm_faults - osum.v_vm_faults)); 485 (void)printf("%3lu ", 486 (u_long)rate(sum.v_reactivated - osum.v_reactivated)); 487 (void)printf("%3lu ", 488 (u_long)rate(sum.v_swapin + sum.v_vnodein - 489 (osum.v_swapin + osum.v_vnodein))); 490 (void)printf("%3lu ", 491 (u_long)rate(sum.v_swapout + sum.v_vnodeout - 492 (osum.v_swapout + osum.v_vnodeout))); 493 (void)printf("%3lu ", 494 (u_long)rate(sum.v_tfree - osum.v_tfree)); 495 (void)printf("%3lu ", 496 (u_long)rate(sum.v_pdpages - osum.v_pdpages)); 497 devstats(); 498 (void)printf("%4lu %4lu %3lu ", 499 (u_long)rate(sum.v_intr - osum.v_intr), 500 (u_long)rate(sum.v_syscall - osum.v_syscall), 501 (u_long)rate(sum.v_swtch - osum.v_swtch)); 502 cpustats(); 503 (void)printf("\n"); 504 (void)fflush(stdout); 505 if (reps >= 0 && --reps <= 0) 506 break; 507 osum = sum; 508 uptime = interval; 509 /* 510 * We round upward to avoid losing low-frequency events 511 * (i.e., >= 1 per interval but < 1 per second). 512 */ 513 if (interval != 1) 514 halfuptime = (uptime + 1) / 2; 515 else 516 halfuptime = 0; 517 (void)sleep(interval); 518 } 519 } 520 521 void 522 printhdr() 523 { 524 int i, num_shown; 525 526 num_shown = (num_selected < maxshowdevs) ? num_selected : maxshowdevs; 527 (void)printf(" procs memory page%*s", 19, ""); 528 if (num_shown > 1) 529 (void)printf(" disks %*s", num_shown * 4 - 7, ""); 530 else if (num_shown == 1) 531 (void)printf("disk"); 532 (void)printf(" faults cpu\n"); 533 (void)printf(" r b w avm fre flt re pi po fr sr "); 534 for (i = 0; i < num_devices; i++) 535 if ((dev_select[i].selected) 536 && (dev_select[i].selected <= maxshowdevs)) 537 (void)printf("%c%c%d ", dev_select[i].device_name[0], 538 dev_select[i].device_name[1], 539 dev_select[i].unit_number); 540 (void)printf(" in sy cs us sy id\n"); 541 hdrcnt = winlines - 2; 542 } 543 544 /* 545 * Force a header to be prepended to the next output. 546 */ 547 void 548 needhdr() 549 { 550 551 hdrcnt = 1; 552 } 553 554 #ifdef notyet 555 void 556 dotimes() 557 { 558 u_int pgintime, rectime; 559 560 kread(X_REC, &rectime, sizeof(rectime)); 561 kread(X_PGIN, &pgintime, sizeof(pgintime)); 562 kread(X_SUM, &sum, sizeof(sum)); 563 (void)printf("%u reclaims, %u total time (usec)\n", 564 sum.v_pgrec, rectime); 565 (void)printf("average: %u usec / reclaim\n", rectime / sum.v_pgrec); 566 (void)printf("\n"); 567 (void)printf("%u page ins, %u total time (msec)\n", 568 sum.v_pgin, pgintime / 10); 569 (void)printf("average: %8.1f msec / page in\n", 570 pgintime / (sum.v_pgin * 10.0)); 571 } 572 #endif 573 574 long 575 pct(top, bot) 576 long top, bot; 577 { 578 long ans; 579 580 if (bot == 0) 581 return(0); 582 ans = (quad_t)top * 100 / bot; 583 return (ans); 584 } 585 586 #define PCT(top, bot) pct((long)(top), (long)(bot)) 587 588 void 589 dosum() 590 { 591 struct nchstats nchstats; 592 long nchtotal; 593 594 kread(X_SUM, &sum, sizeof(sum)); 595 (void)printf("%9u cpu context switches\n", sum.v_swtch); 596 (void)printf("%9u device interrupts\n", sum.v_intr); 597 (void)printf("%9u software interrupts\n", sum.v_soft); 598 (void)printf("%9u traps\n", sum.v_trap); 599 (void)printf("%9u system calls\n", sum.v_syscall); 600 (void)printf("%9u kernel threads created\n", sum.v_kthreads); 601 (void)printf("%9u fork() calls\n", sum.v_forks); 602 (void)printf("%9u vfork() calls\n", sum.v_vforks); 603 (void)printf("%9u rfork() calls\n", sum.v_rforks); 604 (void)printf("%9u swap pager pageins\n", sum.v_swapin); 605 (void)printf("%9u swap pager pages paged in\n", sum.v_swappgsin); 606 (void)printf("%9u swap pager pageouts\n", sum.v_swapout); 607 (void)printf("%9u swap pager pages paged out\n", sum.v_swappgsout); 608 (void)printf("%9u vnode pager pageins\n", sum.v_vnodein); 609 (void)printf("%9u vnode pager pages paged in\n", sum.v_vnodepgsin); 610 (void)printf("%9u vnode pager pageouts\n", sum.v_vnodeout); 611 (void)printf("%9u vnode pager pages paged out\n", sum.v_vnodepgsout); 612 (void)printf("%9u page daemon wakeups\n", sum.v_pdwakeups); 613 (void)printf("%9u pages examined by the page daemon\n", sum.v_pdpages); 614 (void)printf("%9u pages reactivated\n", sum.v_reactivated); 615 (void)printf("%9u copy-on-write faults\n", sum.v_cow_faults); 616 (void)printf("%9u copy-on-write optimized faults\n", sum.v_cow_optim); 617 (void)printf("%9u zero fill pages zeroed\n", sum.v_zfod); 618 (void)printf("%9u zero fill pages prezeroed\n", sum.v_ozfod); 619 (void)printf("%9u intransit blocking page faults\n", sum.v_intrans); 620 (void)printf("%9u total VM faults taken\n", sum.v_vm_faults); 621 (void)printf("%9u pages affected by kernel thread creation\n", sum.v_kthreadpages); 622 (void)printf("%9u pages affected by fork()\n", sum.v_forkpages); 623 (void)printf("%9u pages affected by vfork()\n", sum.v_vforkpages); 624 (void)printf("%9u pages affected by rfork()\n", sum.v_rforkpages); 625 (void)printf("%9u pages freed\n", sum.v_tfree); 626 (void)printf("%9u pages freed by daemon\n", sum.v_dfree); 627 (void)printf("%9u pages freed by exiting processes\n", sum.v_pfree); 628 (void)printf("%9u pages active\n", sum.v_active_count); 629 (void)printf("%9u pages inactive\n", sum.v_inactive_count); 630 (void)printf("%9u pages in VM cache\n", sum.v_cache_count); 631 (void)printf("%9u pages wired down\n", sum.v_wire_count); 632 (void)printf("%9u pages free\n", sum.v_free_count); 633 (void)printf("%9u bytes per page\n", sum.v_page_size); 634 kread(X_NCHSTATS, &nchstats, sizeof(nchstats)); 635 nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits + 636 nchstats.ncs_badhits + nchstats.ncs_falsehits + 637 nchstats.ncs_miss + nchstats.ncs_long; 638 (void)printf("%9ld total name lookups\n", nchtotal); 639 (void)printf( 640 "%9s cache hits (%ld%% pos + %ld%% neg) system %ld%% per-directory\n", 641 "", PCT(nchstats.ncs_goodhits, nchtotal), 642 PCT(nchstats.ncs_neghits, nchtotal), 643 PCT(nchstats.ncs_pass2, nchtotal)); 644 (void)printf("%9s deletions %ld%%, falsehits %ld%%, toolong %ld%%\n", "", 645 PCT(nchstats.ncs_badhits, nchtotal), 646 PCT(nchstats.ncs_falsehits, nchtotal), 647 PCT(nchstats.ncs_long, nchtotal)); 648 } 649 650 #ifdef notyet 651 void 652 doforkst() 653 { 654 struct forkstat fks; 655 656 kread(X_FORKSTAT, &fks, sizeof(struct forkstat)); 657 (void)printf("%d forks, %d pages, average %.2f\n", 658 fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork); 659 (void)printf("%d vforks, %d pages, average %.2f\n", 660 fks.cntvfork, fks.sizvfork, (double)fks.sizvfork / fks.cntvfork); 661 } 662 #endif 663 664 static void 665 devstats() 666 { 667 register int dn, state; 668 long double transfers_per_second; 669 long double busy_seconds; 670 long tmp; 671 672 for (state = 0; state < CPUSTATES; ++state) { 673 tmp = cur.cp_time[state]; 674 cur.cp_time[state] -= last.cp_time[state]; 675 last.cp_time[state] = tmp; 676 } 677 678 busy_seconds = compute_etime(cur.busy_time, last.busy_time); 679 680 for (dn = 0; dn < num_devices; dn++) { 681 int di; 682 683 if ((dev_select[dn].selected == 0) 684 || (dev_select[dn].selected > maxshowdevs)) 685 continue; 686 687 di = dev_select[dn].position; 688 689 if (compute_stats(&cur.dinfo->devices[di], 690 &last.dinfo->devices[di], busy_seconds, 691 NULL, NULL, NULL, 692 NULL, &transfers_per_second, NULL, 693 NULL, NULL) != 0) 694 errx(1, "%s", devstat_errbuf); 695 696 printf("%3.0Lf ", transfers_per_second); 697 } 698 } 699 700 void 701 cpustats() 702 { 703 register int state; 704 double pct, total; 705 706 total = 0; 707 for (state = 0; state < CPUSTATES; ++state) 708 total += cur.cp_time[state]; 709 if (total) 710 pct = 100 / total; 711 else 712 pct = 0; 713 (void)printf("%2.0f ", (cur.cp_time[CP_USER] + 714 cur.cp_time[CP_NICE]) * pct); 715 (void)printf("%2.0f ", (cur.cp_time[CP_SYS] + 716 cur.cp_time[CP_INTR]) * pct); 717 (void)printf("%2.0f", cur.cp_time[CP_IDLE] * pct); 718 } 719 720 void 721 dointr() 722 { 723 register u_long *intrcnt, uptime; 724 register u_int64_t inttotal; 725 register int nintr, inamlen; 726 register char *intrname; 727 728 uptime = getuptime(); 729 nintr = namelist[X_EINTRCNT].n_value - namelist[X_INTRCNT].n_value; 730 inamlen = 731 namelist[X_EINTRNAMES].n_value - namelist[X_INTRNAMES].n_value; 732 intrcnt = malloc((size_t)nintr); 733 intrname = malloc((size_t)inamlen); 734 if (intrcnt == NULL || intrname == NULL) 735 errx(1, "malloc"); 736 kread(X_INTRCNT, intrcnt, (size_t)nintr); 737 kread(X_INTRNAMES, intrname, (size_t)inamlen); 738 (void)printf("interrupt total rate\n"); 739 inttotal = 0; 740 nintr /= sizeof(long); 741 while (--nintr >= 0) { 742 if (*intrcnt) 743 (void)printf("%-12s %20lu %10lu\n", intrname, 744 *intrcnt, *intrcnt / uptime); 745 intrname += strlen(intrname) + 1; 746 inttotal += *intrcnt++; 747 } 748 (void)printf("Total %20llu %10llu\n", inttotal, 749 inttotal / (u_int64_t) uptime); 750 } 751 752 #define MAX_KMSTATS 200 753 754 void 755 domem() 756 { 757 register struct kmembuckets *kp; 758 register struct malloc_type *ks; 759 register int i, j; 760 int len, size, first, nkms; 761 long totuse = 0, totfree = 0, totreq = 0; 762 const char *name; 763 struct malloc_type kmemstats[MAX_KMSTATS], *kmsp; 764 char buf[1024]; 765 struct kmembuckets buckets[MINBUCKET + 16]; 766 767 kread(X_KMEMBUCKETS, buckets, sizeof(buckets)); 768 kread(X_KMEMSTATISTICS, &kmsp, sizeof(kmsp)); 769 for (nkms = 0; nkms < MAX_KMSTATS && kmsp != NULL; nkms++) { 770 if (sizeof(kmemstats[0]) != kvm_read(kd, (u_long)kmsp, 771 &kmemstats[nkms], sizeof(kmemstats[0]))) 772 err(1, "kvm_read(%p)", (void *)kmsp); 773 if (sizeof(buf) != kvm_read(kd, 774 (u_long)kmemstats[nkms].ks_shortdesc, buf, sizeof(buf))) 775 err(1, "kvm_read(%p)", 776 (void *)kmemstats[nkms].ks_shortdesc); 777 buf[sizeof(buf) - 1] = '\0'; 778 kmemstats[nkms].ks_shortdesc = strdup(buf); 779 kmsp = kmemstats[nkms].ks_next; 780 } 781 if (kmsp != NULL) 782 warnx("truncated to the first %d memory types", nkms); 783 (void)printf("Memory statistics by bucket size\n"); 784 (void)printf( 785 "Size In Use Free Requests HighWater Couldfree\n"); 786 for (i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16; i++, kp++) { 787 if (kp->kb_calls == 0) 788 continue; 789 size = 1 << i; 790 if(size < 1024) 791 (void)printf("%4d",size); 792 else 793 (void)printf("%3dK",size>>10); 794 (void)printf(" %8ld %6ld %10lld %7ld %10ld\n", 795 kp->kb_total - kp->kb_totalfree, 796 kp->kb_totalfree, kp->kb_calls, 797 kp->kb_highwat, kp->kb_couldfree); 798 totfree += size * kp->kb_totalfree; 799 } 800 801 (void)printf("\nMemory usage type by bucket size\n"); 802 (void)printf("Size Type(s)\n"); 803 kp = &buckets[MINBUCKET]; 804 for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) { 805 if (kp->kb_calls == 0) 806 continue; 807 first = 1; 808 len = 8; 809 for (i = 0, ks = &kmemstats[0]; i < nkms; i++, ks++) { 810 if (ks->ks_calls == 0) 811 continue; 812 if ((ks->ks_size & j) == 0) 813 continue; 814 name = ks->ks_shortdesc; 815 len += 2 + strlen(name); 816 if (first && j < 1024) 817 printf("%4d %s", j, name); 818 else if (first) 819 printf("%3dK %s", j>>10, name); 820 else 821 printf(","); 822 if (len >= 79) { 823 printf("\n\t "); 824 len = 10 + strlen(name); 825 } 826 if (!first) 827 printf(" %s", name); 828 first = 0; 829 } 830 printf("\n"); 831 } 832 833 (void)printf( 834 "\nMemory statistics by type Type Kern\n"); 835 (void)printf( 836 " Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)\n"); 837 for (i = 0, ks = &kmemstats[0]; i < nkms; i++, ks++) { 838 if (ks->ks_calls == 0) 839 continue; 840 (void)printf("%13s%6ld%6ldK%7ldK%6ldK%9lld%5u%6u", 841 ks->ks_shortdesc, 842 ks->ks_inuse, (ks->ks_memuse + 1023) / 1024, 843 (ks->ks_maxused + 1023) / 1024, 844 (ks->ks_limit + 1023) / 1024, ks->ks_calls, 845 ks->ks_limblocks, ks->ks_mapblocks); 846 first = 1; 847 for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) { 848 if ((ks->ks_size & j) == 0) 849 continue; 850 if (first) 851 printf(" "); 852 else 853 printf(","); 854 if(j<1024) 855 printf("%d",j); 856 else 857 printf("%dK",j>>10); 858 first = 0; 859 } 860 printf("\n"); 861 totuse += ks->ks_memuse; 862 totreq += ks->ks_calls; 863 } 864 (void)printf("\nMemory Totals: In Use Free Requests\n"); 865 (void)printf(" %7ldK %6ldK %8ld\n", 866 (totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq); 867 } 868 869 void 870 dozmem() 871 { 872 char *buf; 873 size_t bufsize; 874 875 buf = NULL; 876 bufsize = 1024; 877 for (;;) { 878 if ((buf = realloc(buf, bufsize)) == NULL) 879 err(1, "realloc()"); 880 if (sysctlbyname("vm.zone", buf, &bufsize, 0, NULL) == 0) 881 break; 882 if (errno != ENOMEM) 883 err(1, "sysctl()"); 884 bufsize *= 2; 885 } 886 buf[bufsize] = '\0'; /* play it safe */ 887 (void)printf("%s\n\n", buf); 888 free(buf); 889 } 890 891 /* 892 * kread reads something from the kernel, given its nlist index. 893 */ 894 void 895 kread(nlx, addr, size) 896 int nlx; 897 void *addr; 898 size_t size; 899 { 900 char *sym; 901 902 if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) { 903 sym = namelist[nlx].n_name; 904 if (*sym == '_') 905 ++sym; 906 errx(1, "symbol %s not defined", sym); 907 } 908 if (kvm_read(kd, namelist[nlx].n_value, addr, size) != size) { 909 sym = namelist[nlx].n_name; 910 if (*sym == '_') 911 ++sym; 912 errx(1, "%s: %s", sym, kvm_geterr(kd)); 913 } 914 } 915 916 void 917 usage() 918 { 919 (void)fprintf(stderr, "%s%s", 920 "usage: vmstat [-imsz] [-c count] [-M core] [-N system] [-w wait]\n", 921 " [-n devs] [disks]\n"); 922 exit(1); 923 } 924