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 char *err_str; 169 170 memf = nlistf = NULL; 171 interval = reps = todo = 0; 172 maxshowdevs = 2; 173 while ((c = getopt(argc, argv, "c:fiM:mN:n:p:stw:z")) != -1) { 174 switch (c) { 175 case 'c': 176 reps = atoi(optarg); 177 break; 178 case 'f': 179 #ifdef notyet 180 todo |= FORKSTAT; 181 #else 182 errx(EX_USAGE, "sorry, -f is not (re)implemented yet"); 183 #endif 184 break; 185 case 'i': 186 todo |= INTRSTAT; 187 break; 188 case 'M': 189 memf = optarg; 190 break; 191 case 'm': 192 todo |= MEMSTAT; 193 break; 194 case 'N': 195 nlistf = optarg; 196 break; 197 case 'n': 198 nflag = 1; 199 maxshowdevs = atoi(optarg); 200 if (maxshowdevs < 0) 201 errx(1, "number of devices %d is < 0", 202 maxshowdevs); 203 break; 204 case 'p': 205 if (buildmatch(optarg, &matches, &num_matches) != 0) 206 errx(1, "%s", devstat_errbuf); 207 break; 208 case 's': 209 todo |= SUMSTAT; 210 break; 211 case 't': 212 #ifdef notyet 213 todo |= TIMESTAT; 214 #else 215 errx(EX_USAGE, "sorry, -t is not (re)implemented yet"); 216 #endif 217 break; 218 case 'w': 219 interval = atoi(optarg); 220 break; 221 case 'z': 222 todo |= ZMEMSTAT; 223 break; 224 case '?': 225 default: 226 usage(); 227 } 228 } 229 argc -= optind; 230 argv += optind; 231 232 if (todo == 0) 233 todo = VMSTAT; 234 235 /* 236 * Discard setgid privileges if not the running kernel so that bad 237 * guys can't print interesting stuff from kernel memory. 238 */ 239 if (nlistf != NULL || memf != NULL) 240 setgid(getgid()); 241 242 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf); 243 if (kd == 0) 244 errx(1, "kvm_openfiles: %s", errbuf); 245 246 if ((c = kvm_nlist(kd, namelist)) != 0) { 247 if (c > 0) { 248 warnx("undefined symbols:"); 249 for (c = 0; 250 c < sizeof(namelist)/sizeof(namelist[0]); c++) 251 if (namelist[c].n_type == 0) 252 fprintf(stderr, " %s", 253 namelist[c].n_name); 254 (void)fputc('\n', stderr); 255 } else 256 warnx("kvm_nlist: %s", kvm_geterr(kd)); 257 exit(1); 258 } 259 260 if (todo & VMSTAT) { 261 char **getdrivedata(); 262 struct winsize winsize; 263 264 /* 265 * Make sure that the userland devstat version matches the 266 * kernel devstat version. If not, exit and print a 267 * message informing the user of his mistake. 268 */ 269 if (checkversion() < 0) 270 errx(1, "%s", devstat_errbuf); 271 272 273 argv = getdrivedata(argv); 274 winsize.ws_row = 0; 275 (void) ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&winsize); 276 if (winsize.ws_row > 0) 277 winlines = winsize.ws_row; 278 279 } 280 281 #define BACKWARD_COMPATIBILITY 282 #ifdef BACKWARD_COMPATIBILITY 283 if (*argv) { 284 interval = atoi(*argv); 285 if (*++argv) 286 reps = atoi(*argv); 287 } 288 #endif 289 290 if (interval) { 291 if (!reps) 292 reps = -1; 293 } else if (reps) 294 interval = 1; 295 296 #ifdef notyet 297 if (todo & FORKSTAT) 298 doforkst(); 299 #endif 300 if (todo & MEMSTAT) 301 domem(); 302 if (todo & ZMEMSTAT) 303 dozmem(); 304 if (todo & SUMSTAT) 305 dosum(); 306 #ifdef notyet 307 if (todo & TIMESTAT) 308 dotimes(); 309 #endif 310 if (todo & INTRSTAT) 311 dointr(); 312 if (todo & VMSTAT) 313 dovmstat(interval, reps); 314 exit(0); 315 } 316 317 char ** 318 getdrivedata(argv) 319 char **argv; 320 { 321 register int i; 322 char buf[30]; 323 324 if ((num_devices = getnumdevs()) < 0) 325 errx(1, "%s", devstat_errbuf); 326 327 cur.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo)); 328 last.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo)); 329 bzero(cur.dinfo, sizeof(struct devinfo)); 330 bzero(last.dinfo, sizeof(struct devinfo)); 331 332 if (getdevs(&cur) == -1) 333 errx(1, "%s", devstat_errbuf); 334 335 num_devices = cur.dinfo->numdevs; 336 generation = cur.dinfo->generation; 337 338 specified_devices = (char **)malloc(sizeof(char *)); 339 for (num_devices_specified = 0; *argv; ++argv) { 340 if (isdigit(**argv)) 341 break; 342 num_devices_specified++; 343 specified_devices = (char **)realloc(specified_devices, 344 sizeof(char *) * 345 num_devices_specified); 346 specified_devices[num_devices_specified - 1] = *argv; 347 } 348 dev_select = NULL; 349 350 if (nflag == 0 && maxshowdevs < num_devices_specified) 351 maxshowdevs = num_devices_specified; 352 353 /* 354 * People are generally only interested in disk statistics when 355 * they're running vmstat. So, that's what we're going to give 356 * them if they don't specify anything by default. We'll also give 357 * them any other random devices in the system so that we get to 358 * maxshowdevs devices, if that many devices exist. If the user 359 * specifies devices on the command line, either through a pattern 360 * match or by naming them explicitly, we will give the user only 361 * those devices. 362 */ 363 if ((num_devices_specified == 0) && (num_matches == 0)) { 364 if (buildmatch("da", &matches, &num_matches) != 0) 365 errx(1, "%s", devstat_errbuf); 366 367 select_mode = DS_SELECT_ADD; 368 } else 369 select_mode = DS_SELECT_ONLY; 370 371 /* 372 * At this point, selectdevs will almost surely indicate that the 373 * device list has changed, so we don't look for return values of 0 374 * or 1. If we get back -1, though, there is an error. 375 */ 376 if (selectdevs(&dev_select, &num_selected, &num_selections, 377 &select_generation, generation, cur.dinfo->devices, 378 num_devices, matches, num_matches, specified_devices, 379 num_devices_specified, select_mode, 380 maxshowdevs, 0) == -1) 381 errx(1, "%s", devstat_errbuf); 382 383 return(argv); 384 } 385 386 long 387 getuptime() 388 { 389 static time_t now, boottime; 390 time_t uptime; 391 392 if (boottime == 0) 393 kread(X_BOOTTIME, &boottime, sizeof(boottime)); 394 (void)time(&now); 395 uptime = now - boottime; 396 if (uptime <= 0 || uptime > 60*60*24*365*10) 397 errx(1, "time makes no sense; namelist must be wrong"); 398 return(uptime); 399 } 400 401 int hz, hdrcnt; 402 403 void 404 dovmstat(interval, reps) 405 u_int interval; 406 int reps; 407 { 408 struct vmtotal total; 409 time_t uptime, halfuptime; 410 struct devinfo *tmp_dinfo; 411 void needhdr(); 412 int mib[2], size; 413 414 uptime = getuptime(); 415 halfuptime = uptime / 2; 416 (void)signal(SIGCONT, needhdr); 417 418 if (namelist[X_STATHZ].n_type != 0 && namelist[X_STATHZ].n_value != 0) 419 kread(X_STATHZ, &hz, sizeof(hz)); 420 if (!hz) 421 kread(X_HZ, &hz, sizeof(hz)); 422 423 for (hdrcnt = 1;;) { 424 if (!--hdrcnt) 425 printhdr(); 426 kread(X_CPTIME, cur.cp_time, sizeof(cur.cp_time)); 427 428 tmp_dinfo = last.dinfo; 429 last.dinfo = cur.dinfo; 430 cur.dinfo = tmp_dinfo; 431 last.busy_time = cur.busy_time; 432 433 /* 434 * Here what we want to do is refresh our device stats. 435 * getdevs() returns 1 when the device list has changed. 436 * If the device list has changed, we want to go through 437 * the selection process again, in case a device that we 438 * were previously displaying has gone away. 439 */ 440 switch (getdevs(&cur)) { 441 case -1: 442 errx(1, "%s", devstat_errbuf); 443 break; 444 case 1: { 445 int retval; 446 447 num_devices = cur.dinfo->numdevs; 448 generation = cur.dinfo->generation; 449 450 retval = selectdevs(&dev_select, &num_selected, 451 &num_selections, &select_generation, 452 generation, cur.dinfo->devices, 453 num_devices, matches, num_matches, 454 specified_devices, 455 num_devices_specified, select_mode, 456 maxshowdevs, 0); 457 switch (retval) { 458 case -1: 459 errx(1, "%s", devstat_errbuf); 460 break; 461 case 1: 462 printhdr(); 463 break; 464 default: 465 break; 466 } 467 } 468 default: 469 break; 470 } 471 472 kread(X_SUM, &sum, sizeof(sum)); 473 size = sizeof(total); 474 mib[0] = CTL_VM; 475 mib[1] = VM_METER; 476 if (sysctl(mib, 2, &total, &size, NULL, 0) < 0) { 477 printf("Can't get kerninfo: %s\n", strerror(errno)); 478 bzero(&total, sizeof(total)); 479 } 480 (void)printf("%2d%2d%2d", 481 total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw); 482 #define vmstat_pgtok(a) ((a) * sum.v_page_size >> 10) 483 #define rate(x) (((x) + halfuptime) / uptime) /* round */ 484 (void)printf("%8ld%6ld ", 485 (long)vmstat_pgtok(total.t_avm), (long)vmstat_pgtok(total.t_free)); 486 (void)printf("%4lu ", 487 (u_long)rate(sum.v_vm_faults - osum.v_vm_faults)); 488 (void)printf("%3lu ", 489 (u_long)rate(sum.v_reactivated - osum.v_reactivated)); 490 (void)printf("%3lu ", 491 (u_long)rate(sum.v_swapin + sum.v_vnodein - 492 (osum.v_swapin + osum.v_vnodein))); 493 (void)printf("%3lu ", 494 (u_long)rate(sum.v_swapout + sum.v_vnodeout - 495 (osum.v_swapout + osum.v_vnodeout))); 496 (void)printf("%3lu ", 497 (u_long)rate(sum.v_tfree - osum.v_tfree)); 498 (void)printf("%3lu ", 499 (u_long)rate(sum.v_pdpages - osum.v_pdpages)); 500 devstats(); 501 (void)printf("%4lu %4lu %3lu ", 502 (u_long)rate(sum.v_intr - osum.v_intr), 503 (u_long)rate(sum.v_syscall - osum.v_syscall), 504 (u_long)rate(sum.v_swtch - osum.v_swtch)); 505 cpustats(); 506 (void)printf("\n"); 507 (void)fflush(stdout); 508 if (reps >= 0 && --reps <= 0) 509 break; 510 osum = sum; 511 uptime = interval; 512 /* 513 * We round upward to avoid losing low-frequency events 514 * (i.e., >= 1 per interval but < 1 per second). 515 */ 516 if (interval != 1) 517 halfuptime = (uptime + 1) / 2; 518 else 519 halfuptime = 0; 520 (void)sleep(interval); 521 } 522 } 523 524 void 525 printhdr() 526 { 527 int i, num_shown; 528 529 num_shown = (num_selected < maxshowdevs) ? num_selected : maxshowdevs; 530 (void)printf(" procs memory page%*s", 19, ""); 531 if (num_shown > 1) 532 (void)printf(" disks %*s", num_shown * 4 - 7, ""); 533 else if (num_shown == 1) 534 (void)printf("disk"); 535 (void)printf(" faults cpu\n"); 536 (void)printf(" r b w avm fre flt re pi po fr sr "); 537 for (i = 0; i < num_devices; i++) 538 if ((dev_select[i].selected) 539 && (dev_select[i].selected <= maxshowdevs)) 540 (void)printf("%c%c%d ", dev_select[i].device_name[0], 541 dev_select[i].device_name[1], 542 dev_select[i].unit_number); 543 (void)printf(" in sy cs us sy id\n"); 544 hdrcnt = winlines - 2; 545 } 546 547 /* 548 * Force a header to be prepended to the next output. 549 */ 550 void 551 needhdr() 552 { 553 554 hdrcnt = 1; 555 } 556 557 #ifdef notyet 558 void 559 dotimes() 560 { 561 u_int pgintime, rectime; 562 563 kread(X_REC, &rectime, sizeof(rectime)); 564 kread(X_PGIN, &pgintime, sizeof(pgintime)); 565 kread(X_SUM, &sum, sizeof(sum)); 566 (void)printf("%u reclaims, %u total time (usec)\n", 567 sum.v_pgrec, rectime); 568 (void)printf("average: %u usec / reclaim\n", rectime / sum.v_pgrec); 569 (void)printf("\n"); 570 (void)printf("%u page ins, %u total time (msec)\n", 571 sum.v_pgin, pgintime / 10); 572 (void)printf("average: %8.1f msec / page in\n", 573 pgintime / (sum.v_pgin * 10.0)); 574 } 575 #endif 576 577 long 578 pct(top, bot) 579 long top, bot; 580 { 581 long ans; 582 583 if (bot == 0) 584 return(0); 585 ans = (quad_t)top * 100 / bot; 586 return (ans); 587 } 588 589 #define PCT(top, bot) pct((long)(top), (long)(bot)) 590 591 void 592 dosum() 593 { 594 struct nchstats nchstats; 595 long nchtotal; 596 597 kread(X_SUM, &sum, sizeof(sum)); 598 (void)printf("%9u cpu context switches\n", sum.v_swtch); 599 (void)printf("%9u device interrupts\n", sum.v_intr); 600 (void)printf("%9u software interrupts\n", sum.v_soft); 601 (void)printf("%9u traps\n", sum.v_trap); 602 (void)printf("%9u system calls\n", sum.v_syscall); 603 (void)printf("%9u kernel threads created\n", sum.v_kthreads); 604 (void)printf("%9u fork() calls\n", sum.v_forks); 605 (void)printf("%9u vfork() calls\n", sum.v_vforks); 606 (void)printf("%9u rfork() calls\n", sum.v_rforks); 607 (void)printf("%9u swap pager pageins\n", sum.v_swapin); 608 (void)printf("%9u swap pager pages paged in\n", sum.v_swappgsin); 609 (void)printf("%9u swap pager pageouts\n", sum.v_swapout); 610 (void)printf("%9u swap pager pages paged out\n", sum.v_swappgsout); 611 (void)printf("%9u vnode pager pageins\n", sum.v_vnodein); 612 (void)printf("%9u vnode pager pages paged in\n", sum.v_vnodepgsin); 613 (void)printf("%9u vnode pager pageouts\n", sum.v_vnodeout); 614 (void)printf("%9u vnode pager pages paged out\n", sum.v_vnodepgsout); 615 (void)printf("%9u page daemon wakeups\n", sum.v_pdwakeups); 616 (void)printf("%9u pages examined by the page daemon\n", sum.v_pdpages); 617 (void)printf("%9u pages reactivated\n", sum.v_reactivated); 618 (void)printf("%9u copy-on-write faults\n", sum.v_cow_faults); 619 (void)printf("%9u copy-on-write optimized faults\n", sum.v_cow_optim); 620 (void)printf("%9u zero fill pages zeroed\n", sum.v_zfod); 621 (void)printf("%9u zero fill pages prezeroed\n", sum.v_ozfod); 622 (void)printf("%9u intransit blocking page faults\n", sum.v_intrans); 623 (void)printf("%9u total VM faults taken\n", sum.v_vm_faults); 624 (void)printf("%9u pages affected by kernel thread creation\n", sum.v_kthreadpages); 625 (void)printf("%9u pages affected by fork()\n", sum.v_forkpages); 626 (void)printf("%9u pages affected by vfork()\n", sum.v_vforkpages); 627 (void)printf("%9u pages affected by rfork()\n", sum.v_rforkpages); 628 (void)printf("%9u pages freed\n", sum.v_tfree); 629 (void)printf("%9u pages freed by daemon\n", sum.v_dfree); 630 (void)printf("%9u pages freed by exiting processes\n", sum.v_pfree); 631 (void)printf("%9u pages active\n", sum.v_active_count); 632 (void)printf("%9u pages inactive\n", sum.v_inactive_count); 633 (void)printf("%9u pages in VM cache\n", sum.v_cache_count); 634 (void)printf("%9u pages wired down\n", sum.v_wire_count); 635 (void)printf("%9u pages free\n", sum.v_free_count); 636 (void)printf("%9u bytes per page\n", sum.v_page_size); 637 kread(X_NCHSTATS, &nchstats, sizeof(nchstats)); 638 nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits + 639 nchstats.ncs_badhits + nchstats.ncs_falsehits + 640 nchstats.ncs_miss + nchstats.ncs_long; 641 (void)printf("%9ld total name lookups\n", nchtotal); 642 (void)printf( 643 "%9s cache hits (%ld%% pos + %ld%% neg) system %ld%% per-directory\n", 644 "", PCT(nchstats.ncs_goodhits, nchtotal), 645 PCT(nchstats.ncs_neghits, nchtotal), 646 PCT(nchstats.ncs_pass2, nchtotal)); 647 (void)printf("%9s deletions %ld%%, falsehits %ld%%, toolong %ld%%\n", "", 648 PCT(nchstats.ncs_badhits, nchtotal), 649 PCT(nchstats.ncs_falsehits, nchtotal), 650 PCT(nchstats.ncs_long, nchtotal)); 651 } 652 653 #ifdef notyet 654 void 655 doforkst() 656 { 657 struct forkstat fks; 658 659 kread(X_FORKSTAT, &fks, sizeof(struct forkstat)); 660 (void)printf("%d forks, %d pages, average %.2f\n", 661 fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork); 662 (void)printf("%d vforks, %d pages, average %.2f\n", 663 fks.cntvfork, fks.sizvfork, (double)fks.sizvfork / fks.cntvfork); 664 } 665 #endif 666 667 static void 668 devstats() 669 { 670 register int dn, state; 671 long double transfers_per_second; 672 long double busy_seconds; 673 long tmp; 674 675 for (state = 0; state < CPUSTATES; ++state) { 676 tmp = cur.cp_time[state]; 677 cur.cp_time[state] -= last.cp_time[state]; 678 last.cp_time[state] = tmp; 679 } 680 681 busy_seconds = compute_etime(cur.busy_time, last.busy_time); 682 683 for (dn = 0; dn < num_devices; dn++) { 684 int di; 685 686 if ((dev_select[dn].selected == 0) 687 || (dev_select[dn].selected > maxshowdevs)) 688 continue; 689 690 di = dev_select[dn].position; 691 692 if (compute_stats(&cur.dinfo->devices[di], 693 &last.dinfo->devices[di], busy_seconds, 694 NULL, NULL, NULL, 695 NULL, &transfers_per_second, NULL, 696 NULL, NULL) != 0) 697 errx(1, "%s", devstat_errbuf); 698 699 printf("%3.0Lf ", transfers_per_second); 700 } 701 } 702 703 void 704 cpustats() 705 { 706 register int state; 707 double pct, total; 708 709 total = 0; 710 for (state = 0; state < CPUSTATES; ++state) 711 total += cur.cp_time[state]; 712 if (total) 713 pct = 100 / total; 714 else 715 pct = 0; 716 (void)printf("%2.0f ", (cur.cp_time[CP_USER] + 717 cur.cp_time[CP_NICE]) * pct); 718 (void)printf("%2.0f ", (cur.cp_time[CP_SYS] + 719 cur.cp_time[CP_INTR]) * pct); 720 (void)printf("%2.0f", cur.cp_time[CP_IDLE] * pct); 721 } 722 723 void 724 dointr() 725 { 726 register u_long *intrcnt, uptime; 727 register u_int64_t inttotal; 728 register int nintr, inamlen; 729 register char *intrname; 730 731 uptime = getuptime(); 732 nintr = namelist[X_EINTRCNT].n_value - namelist[X_INTRCNT].n_value; 733 inamlen = 734 namelist[X_EINTRNAMES].n_value - namelist[X_INTRNAMES].n_value; 735 intrcnt = malloc((size_t)nintr); 736 intrname = malloc((size_t)inamlen); 737 if (intrcnt == NULL || intrname == NULL) 738 errx(1, "malloc"); 739 kread(X_INTRCNT, intrcnt, (size_t)nintr); 740 kread(X_INTRNAMES, intrname, (size_t)inamlen); 741 (void)printf("interrupt total rate\n"); 742 inttotal = 0; 743 nintr /= sizeof(long); 744 while (--nintr >= 0) { 745 if (*intrcnt) 746 (void)printf("%-12s %8lu %8lu\n", intrname, 747 *intrcnt, *intrcnt / uptime); 748 intrname += strlen(intrname) + 1; 749 inttotal += *intrcnt++; 750 } 751 (void)printf("Total %8llu %8llu\n", inttotal, 752 inttotal / (u_int64_t) uptime); 753 } 754 755 #define MAX_KMSTATS 200 756 757 void 758 domem() 759 { 760 register struct kmembuckets *kp; 761 register struct malloc_type *ks; 762 register int i, j; 763 int len, size, first, nkms; 764 long totuse = 0, totfree = 0, totreq = 0; 765 const char *name; 766 struct malloc_type kmemstats[MAX_KMSTATS], *kmsp; 767 char *kmemnames[MAX_KMSTATS]; 768 char buf[1024]; 769 struct kmembuckets buckets[MINBUCKET + 16]; 770 771 kread(X_KMEMBUCKETS, buckets, sizeof(buckets)); 772 kread(X_KMEMSTATISTICS, &kmsp, sizeof(kmsp)); 773 for (nkms = 0; nkms < MAX_KMSTATS && kmsp != NULL; nkms++) { 774 if (sizeof(kmemstats[0]) != kvm_read(kd, (u_long)kmsp, 775 &kmemstats[nkms], sizeof(kmemstats[0]))) 776 err(1, "kvm_read(%p)", (void *)kmsp); 777 if (sizeof(buf) != kvm_read(kd, 778 (u_long)kmemstats[nkms].ks_shortdesc, buf, sizeof(buf))) 779 err(1, "kvm_read(%p)", 780 (void *)kmemstats[nkms].ks_shortdesc); 781 buf[sizeof(buf) - 1] = '\0'; 782 kmemstats[nkms].ks_shortdesc = strdup(buf); 783 kmsp = kmemstats[nkms].ks_next; 784 } 785 if (kmsp != NULL) 786 warnx("truncated to the first %d memory types", nkms); 787 (void)printf("Memory statistics by bucket size\n"); 788 (void)printf( 789 "Size In Use Free Requests HighWater Couldfree\n"); 790 for (i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16; i++, kp++) { 791 if (kp->kb_calls == 0) 792 continue; 793 size = 1 << i; 794 if(size < 1024) 795 (void)printf("%4d",size); 796 else 797 (void)printf("%3dK",size>>10); 798 (void)printf(" %8ld %6ld %10ld %7ld %10ld\n", 799 kp->kb_total - kp->kb_totalfree, 800 kp->kb_totalfree, kp->kb_calls, 801 kp->kb_highwat, kp->kb_couldfree); 802 totfree += size * kp->kb_totalfree; 803 } 804 805 (void)printf("\nMemory usage type by bucket size\n"); 806 (void)printf("Size Type(s)\n"); 807 kp = &buckets[MINBUCKET]; 808 for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) { 809 if (kp->kb_calls == 0) 810 continue; 811 first = 1; 812 len = 8; 813 for (i = 0, ks = &kmemstats[0]; i < nkms; i++, ks++) { 814 if (ks->ks_calls == 0) 815 continue; 816 if ((ks->ks_size & j) == 0) 817 continue; 818 name = ks->ks_shortdesc; 819 len += 2 + strlen(name); 820 if (first && j < 1024) 821 printf("%4d %s", j, name); 822 else if (first) 823 printf("%3dK %s", j>>10, name); 824 else 825 printf(","); 826 if (len >= 79) { 827 printf("\n\t "); 828 len = 10 + strlen(name); 829 } 830 if (!first) 831 printf(" %s", name); 832 first = 0; 833 } 834 printf("\n"); 835 } 836 837 (void)printf( 838 "\nMemory statistics by type Type Kern\n"); 839 (void)printf( 840 " Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)\n"); 841 for (i = 0, ks = &kmemstats[0]; i < nkms; i++, ks++) { 842 if (ks->ks_calls == 0) 843 continue; 844 (void)printf("%13s%6ld%6ldK%7ldK%6ldK%9ld%5u%6u", 845 ks->ks_shortdesc, 846 ks->ks_inuse, (ks->ks_memuse + 1023) / 1024, 847 (ks->ks_maxused + 1023) / 1024, 848 (ks->ks_limit + 1023) / 1024, ks->ks_calls, 849 ks->ks_limblocks, ks->ks_mapblocks); 850 first = 1; 851 for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) { 852 if ((ks->ks_size & j) == 0) 853 continue; 854 if (first) 855 printf(" "); 856 else 857 printf(","); 858 if(j<1024) 859 printf("%d",j); 860 else 861 printf("%dK",j>>10); 862 first = 0; 863 } 864 printf("\n"); 865 totuse += ks->ks_memuse; 866 totreq += ks->ks_calls; 867 } 868 (void)printf("\nMemory Totals: In Use Free Requests\n"); 869 (void)printf(" %7ldK %6ldK %8ld\n", 870 (totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq); 871 } 872 873 void 874 dozmem() 875 { 876 char *buf; 877 size_t bufsize; 878 879 buf = NULL; 880 bufsize = 1024; 881 for (;;) { 882 if ((buf = realloc(buf, bufsize)) == NULL) 883 err(1, "realloc()"); 884 if (sysctlbyname("vm.zone", buf, &bufsize, 0, NULL) == 0) 885 break; 886 if (errno != ENOMEM) 887 err(1, "sysctl()"); 888 bufsize *= 2; 889 } 890 buf[bufsize] = '\0'; /* play it safe */ 891 (void)printf("%s\n\n", buf); 892 free(buf); 893 } 894 895 /* 896 * kread reads something from the kernel, given its nlist index. 897 */ 898 void 899 kread(nlx, addr, size) 900 int nlx; 901 void *addr; 902 size_t size; 903 { 904 char *sym; 905 906 if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) { 907 sym = namelist[nlx].n_name; 908 if (*sym == '_') 909 ++sym; 910 errx(1, "symbol %s not defined", sym); 911 } 912 if (kvm_read(kd, namelist[nlx].n_value, addr, size) != size) { 913 sym = namelist[nlx].n_name; 914 if (*sym == '_') 915 ++sym; 916 errx(1, "%s: %s", sym, kvm_geterr(kd)); 917 } 918 } 919 920 void 921 usage() 922 { 923 (void)fprintf(stderr, "%s%s", 924 "usage: vmstat [-imsz] [-c count] [-M core] [-N system] [-w wait]\n", 925 " [-n devs] [disks]\n"); 926 exit(1); 927 } 928