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. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#) Copyright (c) 1980, 1986, 1991, 1993 The Regents of the University of California. All rights reserved. 30 * @(#)vmstat.c 8.1 (Berkeley) 6/6/93 31 * $FreeBSD: src/usr.bin/vmstat/vmstat.c,v 1.38.2.4 2001/07/31 19:52:41 tmm Exp $ 32 */ 33 34 #include <sys/user.h> 35 #include <sys/param.h> 36 #include <sys/time.h> 37 #include <sys/uio.h> 38 #include <sys/namei.h> 39 #include <sys/malloc.h> 40 #include <sys/signal.h> 41 #include <sys/fcntl.h> 42 #include <sys/ioctl.h> 43 #include <sys/sysctl.h> 44 #include <sys/vmmeter.h> 45 #include <sys/interrupt.h> 46 47 #include <vm/vm_param.h> 48 49 #include <ctype.h> 50 #include <err.h> 51 #include <errno.h> 52 #include <kinfo.h> 53 #include <kvm.h> 54 #include <limits.h> 55 #include <nlist.h> 56 #include <paths.h> 57 #include <stdio.h> 58 #include <stdlib.h> 59 #include <string.h> 60 #include <sysexits.h> 61 #include <time.h> 62 #include <unistd.h> 63 #include <devstat.h> 64 65 static struct nlist namelist[] = { 66 #define X_BOOTTIME 0 67 { "_boottime", 0, 0, 0, 0 }, 68 #define X_NCHSTATS 1 69 { "_nchstats", 0, 0, 0, 0 }, 70 #define X_KMEMSTATISTICS 2 71 { "_kmemstatistics", 0, 0, 0, 0 }, 72 #define X_ZLIST 3 73 { "_zlist", 0, 0, 0, 0 }, 74 #ifdef notyet 75 #define X_DEFICIT 4 76 { "_deficit", 0, 0, 0, 0 }, 77 #define X_FORKSTAT 5 78 { "_forkstat", 0, 0, 0, 0 }, 79 #define X_REC 6 80 { "_rectime", 0, 0, 0, 0 }, 81 #define X_PGIN 7 82 { "_pgintime", 0, 0, 0, 0 }, 83 #define X_XSTATS 8 84 { "_xstats", 0, 0, 0, 0 }, 85 #define X_END 9 86 #else 87 #define X_END 4 88 #endif 89 { "", 0, 0, 0, 0 }, 90 }; 91 92 struct statinfo cur, last; 93 int num_devices, maxshowdevs; 94 long generation; 95 struct device_selection *dev_select; 96 int num_selected; 97 struct devstat_match *matches; 98 int num_matches = 0; 99 int num_devices_specified, num_selections; 100 long select_generation; 101 char **specified_devices; 102 devstat_select_mode select_mode; 103 104 struct vmmeter vmm, ovmm; 105 struct vmstats vms, ovms; 106 107 int winlines = 20; 108 int nflag = 0; 109 int verbose = 0; 110 111 kvm_t *kd; 112 113 struct kinfo_cputime cp_time, old_cp_time, diff_cp_time; 114 115 #define FORKSTAT 0x01 116 #define INTRSTAT 0x02 117 #define MEMSTAT 0x04 118 #define SUMSTAT 0x08 119 #define TIMESTAT 0x10 120 #define VMSTAT 0x20 121 #define ZMEMSTAT 0x40 122 123 static void cpustats(void); 124 static void dointr(void); 125 static void domem(void); 126 static void dosum(void); 127 static void dozmem(void); 128 static void dovmstat(u_int, int); 129 static void kread(int, void *, size_t); 130 static void usage(void); 131 static char **getdrivedata(char **); 132 static long getuptime(void); 133 static void needhdr(int); 134 static long pct(long, long); 135 136 #ifdef notyet 137 static void dotimes(void); /* Not implemented */ 138 static void doforkst(void); 139 #endif 140 static void printhdr(void); 141 static void devstats(void); 142 143 int 144 main(int argc, char **argv) 145 { 146 int c, todo; 147 u_int interval; /* milliseconds */ 148 int reps; 149 char *memf, *nlistf; 150 char errbuf[_POSIX2_LINE_MAX]; 151 152 memf = nlistf = NULL; 153 interval = reps = todo = 0; 154 maxshowdevs = 2; 155 while ((c = getopt(argc, argv, "c:fiM:mN:n:p:stvw:z")) != -1) { 156 switch (c) { 157 case 'c': 158 reps = atoi(optarg); 159 break; 160 case 'f': 161 #ifdef notyet 162 todo |= FORKSTAT; 163 #else 164 errx(EX_USAGE, "sorry, -f is not (re)implemented yet"); 165 #endif 166 break; 167 case 'i': 168 todo |= INTRSTAT; 169 break; 170 case 'M': 171 memf = optarg; 172 break; 173 case 'm': 174 todo |= MEMSTAT; 175 break; 176 case 'N': 177 nlistf = optarg; 178 break; 179 case 'n': 180 nflag = 1; 181 maxshowdevs = atoi(optarg); 182 if (maxshowdevs < 0) 183 errx(1, "number of devices %d is < 0", 184 maxshowdevs); 185 break; 186 case 'p': 187 if (buildmatch(optarg, &matches, &num_matches) != 0) 188 errx(1, "%s", devstat_errbuf); 189 break; 190 case 's': 191 todo |= SUMSTAT; 192 break; 193 case 't': 194 #ifdef notyet 195 todo |= TIMESTAT; 196 #else 197 errx(EX_USAGE, "sorry, -t is not (re)implemented yet"); 198 #endif 199 break; 200 case 'v': 201 ++verbose; 202 break; 203 case 'w': 204 interval = (u_int)(strtod(optarg, NULL) * 1000.0); 205 break; 206 case 'z': 207 todo |= ZMEMSTAT; 208 break; 209 default: 210 usage(); 211 } 212 } 213 argc -= optind; 214 argv += optind; 215 216 if (todo == 0) 217 todo = VMSTAT; 218 219 /* 220 * Discard setgid privileges if not the running kernel so that bad 221 * guys can't print interesting stuff from kernel memory. 222 */ 223 if (nlistf != NULL || memf != NULL) 224 setgid(getgid()); 225 226 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf); 227 if (kd == NULL) 228 errx(1, "kvm_openfiles: %s", errbuf); 229 230 if ((c = kvm_nlist(kd, namelist)) != 0) { 231 if (c > 0) { 232 warnx("undefined symbols:"); 233 for (c = 0; c < (int)__arysize(namelist); c++) 234 if (namelist[c].n_type == 0) 235 fprintf(stderr, " %s", 236 namelist[c].n_name); 237 fputc('\n', stderr); 238 } else 239 warnx("kvm_nlist: %s", kvm_geterr(kd)); 240 exit(1); 241 } 242 243 if (todo & VMSTAT) { 244 struct winsize winsize; 245 246 /* 247 * Make sure that the userland devstat version matches the 248 * kernel devstat version. If not, exit and print a 249 * message informing the user of his mistake. 250 */ 251 if (checkversion() < 0) 252 errx(1, "%s", devstat_errbuf); 253 254 255 argv = getdrivedata(argv); 256 winsize.ws_row = 0; 257 ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&winsize); 258 if (winsize.ws_row > 0) 259 winlines = winsize.ws_row; 260 261 } 262 263 #define BACKWARD_COMPATIBILITY 264 #ifdef BACKWARD_COMPATIBILITY 265 if (*argv) { 266 interval = (u_int)(strtod(*argv, NULL) * 1000.0); 267 if (*++argv) 268 reps = atoi(*argv); 269 } 270 #endif 271 272 if (interval) { 273 if (!reps) 274 reps = -1; 275 } else if (reps) { 276 interval = 1000; 277 } 278 279 #ifdef notyet 280 if (todo & FORKSTAT) 281 doforkst(); 282 #endif 283 if (todo & MEMSTAT) 284 domem(); 285 if (todo & ZMEMSTAT) 286 dozmem(); 287 if (todo & SUMSTAT) 288 dosum(); 289 #ifdef notyet 290 if (todo & TIMESTAT) 291 dotimes(); 292 #endif 293 if (todo & INTRSTAT) 294 dointr(); 295 if (todo & VMSTAT) 296 dovmstat(interval, reps); 297 exit(0); 298 } 299 300 static char ** 301 getdrivedata(char **argv) 302 { 303 if ((num_devices = getnumdevs()) < 0) 304 errx(1, "%s", devstat_errbuf); 305 306 cur.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo)); 307 last.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo)); 308 bzero(cur.dinfo, sizeof(struct devinfo)); 309 bzero(last.dinfo, sizeof(struct devinfo)); 310 311 if (getdevs(&cur) == -1) 312 errx(1, "%s", devstat_errbuf); 313 314 num_devices = cur.dinfo->numdevs; 315 generation = cur.dinfo->generation; 316 317 specified_devices = (char **)malloc(sizeof(char *)); 318 for (num_devices_specified = 0; *argv; ++argv) { 319 if (isdigit(**argv)) 320 break; 321 num_devices_specified++; 322 specified_devices = (char **)realloc(specified_devices, 323 sizeof(char *) * 324 num_devices_specified); 325 specified_devices[num_devices_specified - 1] = *argv; 326 } 327 dev_select = NULL; 328 329 if (nflag == 0 && maxshowdevs < num_devices_specified) 330 maxshowdevs = num_devices_specified; 331 332 /* 333 * People are generally only interested in disk statistics when 334 * they're running vmstat. So, that's what we're going to give 335 * them if they don't specify anything by default. We'll also give 336 * them any other random devices in the system so that we get to 337 * maxshowdevs devices, if that many devices exist. If the user 338 * specifies devices on the command line, either through a pattern 339 * match or by naming them explicitly, we will give the user only 340 * those devices. 341 */ 342 if ((num_devices_specified == 0) && (num_matches == 0)) { 343 if (buildmatch("da", &matches, &num_matches) != 0) 344 errx(1, "%s", devstat_errbuf); 345 346 select_mode = DS_SELECT_ADD; 347 } else 348 select_mode = DS_SELECT_ONLY; 349 350 /* 351 * At this point, selectdevs will almost surely indicate that the 352 * device list has changed, so we don't look for return values of 0 353 * or 1. If we get back -1, though, there is an error. 354 */ 355 if (selectdevs(&dev_select, &num_selected, &num_selections, 356 &select_generation, generation, cur.dinfo->devices, 357 num_devices, matches, num_matches, specified_devices, 358 num_devices_specified, select_mode, 359 maxshowdevs, 0) == -1) 360 errx(1, "%s", devstat_errbuf); 361 362 return(argv); 363 } 364 365 static long 366 getuptime(void) 367 { 368 static time_t now, boottime; 369 time_t uptime; 370 371 if (boottime == 0) 372 kread(X_BOOTTIME, &boottime, sizeof(boottime)); 373 time(&now); 374 uptime = now - boottime; 375 if (uptime <= 0 || uptime > 60*60*24*365*10) 376 errx(1, "time makes no sense; namelist must be wrong"); 377 return(uptime); 378 } 379 380 int hdrcnt; 381 382 static void 383 dovmstat(u_int interval, int reps) 384 { 385 struct vmtotal total; 386 struct devinfo *tmp_dinfo; 387 size_t vmm_size = sizeof(vmm); 388 size_t vms_size = sizeof(vms); 389 size_t vmt_size = sizeof(total); 390 int initial = 1; 391 392 signal(SIGCONT, needhdr); 393 394 for (hdrcnt = 1;;) { 395 if (!--hdrcnt) 396 printhdr(); 397 if (kinfo_get_sched_cputime(&cp_time)) 398 err(1, "kinfo_get_sched_cputime"); 399 400 tmp_dinfo = last.dinfo; 401 last.dinfo = cur.dinfo; 402 cur.dinfo = tmp_dinfo; 403 last.busy_time = cur.busy_time; 404 405 /* 406 * Here what we want to do is refresh our device stats. 407 * getdevs() returns 1 when the device list has changed. 408 * If the device list has changed, we want to go through 409 * the selection process again, in case a device that we 410 * were previously displaying has gone away. 411 */ 412 switch (getdevs(&cur)) { 413 case -1: 414 errx(1, "%s", devstat_errbuf); 415 break; 416 case 1: { 417 int retval; 418 419 num_devices = cur.dinfo->numdevs; 420 generation = cur.dinfo->generation; 421 422 retval = selectdevs(&dev_select, &num_selected, 423 &num_selections, &select_generation, 424 generation, cur.dinfo->devices, 425 num_devices, matches, num_matches, 426 specified_devices, 427 num_devices_specified, select_mode, 428 maxshowdevs, 0); 429 switch (retval) { 430 case -1: 431 errx(1, "%s", devstat_errbuf); 432 break; 433 case 1: 434 printhdr(); 435 break; 436 default: 437 break; 438 } 439 } 440 default: 441 break; 442 } 443 444 if (sysctlbyname("vm.vmstats", &vms, &vms_size, NULL, 0)) { 445 perror("sysctlbyname: vm.vmstats"); 446 exit(1); 447 } 448 if (sysctlbyname("vm.vmmeter", &vmm, &vmm_size, NULL, 0)) { 449 perror("sysctlbyname: vm.vmmeter"); 450 exit(1); 451 } 452 if (sysctlbyname("vm.vmtotal", &total, &vmt_size, NULL, 0)) { 453 perror("sysctlbyname: vm.vmtotal"); 454 exit(1); 455 } 456 printf("%2ld %1ld %1ld", 457 total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw); 458 459 #define vmstat_pgtok(a) \ 460 (intmax_t)(((intmax_t)(a) * vms.v_page_size) >> 10) 461 #define rate(x) \ 462 (intmax_t)(initial ? (x) : ((intmax_t)(x) * 1000 + interval / 2) \ 463 / interval) 464 465 printf(" %7jd %6jd ", 466 vmstat_pgtok(total.t_avm), 467 vmstat_pgtok(total.t_free)); 468 printf("%4ju ", 469 rate(vmm.v_vm_faults - ovmm.v_vm_faults)); 470 printf("%3ju ", 471 rate(vmm.v_reactivated - ovmm.v_reactivated)); 472 printf("%3ju ", 473 rate(vmm.v_swapin + vmm.v_vnodein - 474 (ovmm.v_swapin + ovmm.v_vnodein))); 475 printf("%3ju ", 476 rate(vmm.v_swapout + vmm.v_vnodeout - 477 (ovmm.v_swapout + ovmm.v_vnodeout))); 478 printf("%3ju ", 479 rate(vmm.v_tfree - ovmm.v_tfree)); 480 printf("%3ju ", 481 rate(vmm.v_pdpages - ovmm.v_pdpages)); 482 devstats(); 483 printf("%4ju %4ju %3ju ", 484 rate(vmm.v_intr - ovmm.v_intr), 485 rate(vmm.v_syscall - ovmm.v_syscall), 486 rate(vmm.v_swtch - ovmm.v_swtch)); 487 cpustats(); 488 printf("\n"); 489 fflush(stdout); 490 if (reps >= 0 && --reps <= 0) 491 break; 492 ovmm = vmm; 493 usleep(interval * 1000); 494 initial = 0; 495 } 496 } 497 498 static void 499 printhdr(void) 500 { 501 int i, num_shown; 502 503 num_shown = (num_selected < maxshowdevs) ? num_selected : maxshowdevs; 504 printf(" procs memory page%*s", 19, ""); 505 if (num_shown > 1) 506 printf(" disks %*s", num_shown * 4 - 7, ""); 507 else if (num_shown == 1) 508 printf("disk"); 509 printf(" faults cpu\n"); 510 printf(" r b w avm fre flt re pi po fr sr "); 511 for (i = 0; i < num_devices; i++) 512 if ((dev_select[i].selected) 513 && (dev_select[i].selected <= maxshowdevs)) 514 printf("%c%c%d ", dev_select[i].device_name[0], 515 dev_select[i].device_name[1], 516 dev_select[i].unit_number); 517 printf(" in sy cs us sy id\n"); 518 hdrcnt = winlines - 2; 519 } 520 521 /* 522 * Force a header to be prepended to the next output. 523 */ 524 static void 525 needhdr(__unused int signo) 526 { 527 528 hdrcnt = 1; 529 } 530 531 static long 532 pct(long top, long bot) 533 { 534 long ans; 535 536 if (bot == 0) 537 return(0); 538 ans = (quad_t)top * 100 / bot; 539 return (ans); 540 } 541 542 #define PCT(top, bot) pct((long)(top), (long)(bot)) 543 544 static void 545 dosum(void) 546 { 547 struct nchstats *nch_tmp, nchstats; 548 size_t vms_size = sizeof(vms); 549 size_t vmm_size = sizeof(vmm); 550 int cpucnt; 551 u_long nchtotal; 552 u_long nchpathtotal; 553 size_t nch_size = sizeof(struct nchstats) * SMP_MAXCPU; 554 555 if (sysctlbyname("vm.vmstats", &vms, &vms_size, NULL, 0)) { 556 perror("sysctlbyname: vm.vmstats"); 557 exit(1); 558 } 559 if (sysctlbyname("vm.vmmeter", &vmm, &vmm_size, NULL, 0)) { 560 perror("sysctlbyname: vm.vmstats"); 561 exit(1); 562 } 563 printf("%9u cpu context switches\n", vmm.v_swtch); 564 printf("%9u device interrupts\n", vmm.v_intr); 565 printf("%9u software interrupts\n", vmm.v_soft); 566 printf("%9u traps\n", vmm.v_trap); 567 printf("%9u system calls\n", vmm.v_syscall); 568 printf("%9u kernel threads created\n", vmm.v_kthreads); 569 printf("%9u fork() calls\n", vmm.v_forks); 570 printf("%9u vfork() calls\n", vmm.v_vforks); 571 printf("%9u rfork() calls\n", vmm.v_rforks); 572 printf("%9u exec() calls\n", vmm.v_exec); 573 printf("%9u swap pager pageins\n", vmm.v_swapin); 574 printf("%9u swap pager pages paged in\n", vmm.v_swappgsin); 575 printf("%9u swap pager pageouts\n", vmm.v_swapout); 576 printf("%9u swap pager pages paged out\n", vmm.v_swappgsout); 577 printf("%9u vnode pager pageins\n", vmm.v_vnodein); 578 printf("%9u vnode pager pages paged in\n", vmm.v_vnodepgsin); 579 printf("%9u vnode pager pageouts\n", vmm.v_vnodeout); 580 printf("%9u vnode pager pages paged out\n", vmm.v_vnodepgsout); 581 printf("%9u page daemon wakeups\n", vmm.v_pdwakeups); 582 printf("%9u pages examined by the page daemon\n", vmm.v_pdpages); 583 printf("%9u pages reactivated\n", vmm.v_reactivated); 584 printf("%9u copy-on-write faults\n", vmm.v_cow_faults); 585 printf("%9u copy-on-write optimized faults\n", vmm.v_cow_optim); 586 printf("%9u zero fill pages zeroed\n", vmm.v_zfod); 587 printf("%9u zero fill pages prezeroed\n", vmm.v_ozfod); 588 printf("%9u intransit blocking page faults\n", vmm.v_intrans); 589 printf("%9u total VM faults taken\n", vmm.v_vm_faults); 590 printf("%9u pages affected by kernel thread creation\n", vmm.v_kthreadpages); 591 printf("%9u pages affected by fork()\n", vmm.v_forkpages); 592 printf("%9u pages affected by vfork()\n", vmm.v_vforkpages); 593 printf("%9u pages affected by rfork()\n", vmm.v_rforkpages); 594 printf("%9u pages freed\n", vmm.v_tfree); 595 printf("%9u pages freed by daemon\n", vmm.v_dfree); 596 printf("%9u pages freed by exiting processes\n", vmm.v_pfree); 597 printf("%9u pages active\n", vms.v_active_count); 598 printf("%9u pages inactive\n", vms.v_inactive_count); 599 printf("%9u pages in VM cache\n", vms.v_cache_count); 600 printf("%9u pages wired down\n", vms.v_wire_count); 601 printf("%9u pages free\n", vms.v_free_count); 602 printf("%9u bytes per page\n", vms.v_page_size); 603 printf("%9u global smp invltlbs\n", vmm.v_smpinvltlb); 604 605 if ((nch_tmp = malloc(nch_size)) == NULL) { 606 perror("malloc"); 607 exit(1); 608 } else { 609 if (sysctlbyname("vfs.cache.nchstats", nch_tmp, &nch_size, NULL, 0)) { 610 perror("sysctlbyname vfs.cache.nchstats"); 611 free(nch_tmp); 612 exit(1); 613 } else { 614 if ((nch_tmp = realloc(nch_tmp, nch_size)) == NULL) { 615 perror("realloc"); 616 exit(1); 617 } 618 } 619 } 620 621 cpucnt = nch_size / sizeof(struct nchstats); 622 kvm_nch_cpuagg(nch_tmp, &nchstats, cpucnt); 623 624 nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits + 625 nchstats.ncs_badhits + nchstats.ncs_falsehits + 626 nchstats.ncs_miss; 627 nchpathtotal = nchstats.ncs_longhits + nchstats.ncs_longmiss; 628 printf("%9ld total path lookups\n", nchpathtotal); 629 printf("%9ld total component lookups\n", nchtotal); 630 printf( 631 "%9s cache hits (%ld%% pos + %ld%% neg)\n", 632 "", PCT(nchstats.ncs_goodhits, nchtotal), 633 PCT(nchstats.ncs_neghits, nchtotal)); 634 printf("%9s deletions %ld%%, falsehits %ld%%\n", "", 635 PCT(nchstats.ncs_badhits, nchtotal), 636 PCT(nchstats.ncs_falsehits, nchtotal)); 637 free(nch_tmp); 638 } 639 640 #ifdef notyet 641 void 642 doforkst(void) 643 { 644 struct forkstat fks; 645 646 kread(X_FORKSTAT, &fks, sizeof(struct forkstat)); 647 printf("%d forks, %d pages, average %.2f\n", 648 fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork); 649 printf("%d vforks, %d pages, average %.2f\n", 650 fks.cntvfork, fks.sizvfork, (double)fks.sizvfork / fks.cntvfork); 651 } 652 #endif 653 654 static void 655 devstats(void) 656 { 657 int dn; 658 long double transfers_per_second; 659 long double busy_seconds; 660 661 diff_cp_time.cp_user = cp_time.cp_user - old_cp_time.cp_user; 662 diff_cp_time.cp_nice = cp_time.cp_nice - old_cp_time.cp_nice; 663 diff_cp_time.cp_sys = cp_time.cp_sys - old_cp_time.cp_sys; 664 diff_cp_time.cp_intr = cp_time.cp_intr - old_cp_time.cp_intr; 665 diff_cp_time.cp_idle = cp_time.cp_idle - old_cp_time.cp_idle; 666 old_cp_time = cp_time; 667 668 busy_seconds = compute_etime(cur.busy_time, last.busy_time); 669 670 for (dn = 0; dn < num_devices; dn++) { 671 int di; 672 673 if ((dev_select[dn].selected == 0) 674 || (dev_select[dn].selected > maxshowdevs)) 675 continue; 676 677 di = dev_select[dn].position; 678 679 if (compute_stats(&cur.dinfo->devices[di], 680 &last.dinfo->devices[di], busy_seconds, 681 NULL, NULL, NULL, 682 NULL, &transfers_per_second, NULL, 683 NULL, NULL) != 0) 684 errx(1, "%s", devstat_errbuf); 685 686 printf("%3.0Lf ", transfers_per_second); 687 } 688 } 689 690 static void 691 cpustats(void) 692 { 693 uint64_t total; 694 double totusage; 695 696 total = diff_cp_time.cp_user + diff_cp_time.cp_nice + 697 diff_cp_time.cp_sys + diff_cp_time.cp_intr + diff_cp_time.cp_idle; 698 699 if (total) 700 totusage = 100.0 / total; 701 else 702 totusage = 0; 703 printf("%2.0f ", 704 (diff_cp_time.cp_user + diff_cp_time.cp_nice) * totusage); 705 printf("%2.0f ", 706 (diff_cp_time.cp_sys + diff_cp_time.cp_intr) * totusage); 707 printf("%2.0f", 708 diff_cp_time.cp_idle * totusage); 709 } 710 711 static void 712 dointr(void) 713 { 714 u_long *intrcnt, uptime; 715 u_int64_t inttotal; 716 size_t nintr, inamlen, i, size; 717 int nwidth; 718 char *intrstr; 719 char **intrname; 720 721 uptime = getuptime(); 722 if (sysctlbyname("hw.intrnames", NULL, &inamlen, NULL, 0) != 0) 723 errx(1, "sysctlbyname"); 724 intrstr = malloc(inamlen); 725 if (intrstr == NULL) 726 err(1, "malloc"); 727 sysctlbyname("hw.intrnames", intrstr, &inamlen, NULL, 0); 728 for (nintr = 0, i = 0; i < inamlen; ++i) { 729 if (intrstr[i] == 0) 730 nintr++; 731 } 732 intrname = malloc(nintr * sizeof(char *)); 733 for (i = 0; i < nintr; ++i) { 734 intrname[i] = intrstr; 735 intrstr += strlen(intrstr) + 1; 736 } 737 738 size = nintr * sizeof(*intrcnt); 739 intrcnt = calloc(nintr, sizeof(*intrcnt)); 740 if (intrcnt == NULL) 741 err(1, "malloc"); 742 sysctlbyname("hw.intrcnt", intrcnt, &size, NULL, 0); 743 744 nwidth = 21; 745 for (i = 0; i < nintr; ++i) { 746 if (nwidth < (int)strlen(intrname[i])) 747 nwidth = (int)strlen(intrname[i]); 748 } 749 if (verbose) nwidth += 12; 750 751 printf("%-*.*s %11s %10s\n", 752 nwidth, nwidth, "interrupt", "total", "rate"); 753 inttotal = 0; 754 for (i = 0; i < nintr; ++i) { 755 int named; 756 char *infop, irqinfo[72]; 757 758 if ((named = strncmp(intrname[i], "irq", 3)) != 0 || 759 intrcnt[i] > 0) { 760 infop = intrname[i]; 761 if (verbose) { 762 ssize_t irq, cpu; 763 764 irq = i % MAX_INTS; 765 cpu = i / MAX_INTS; 766 if (named) { 767 snprintf(irqinfo, sizeof(irqinfo), 768 "irq%-3zd %3zd: %s", 769 irq, cpu, intrname[i]); 770 } else { 771 snprintf(irqinfo, sizeof(irqinfo), 772 "irq%-3zd %3zd: ", irq, cpu); 773 } 774 infop = irqinfo; 775 } 776 printf("%-*.*s %11lu %10lu\n", 777 nwidth, nwidth, infop, 778 intrcnt[i], intrcnt[i] / uptime); 779 } 780 inttotal += intrcnt[i]; 781 } 782 printf("%-*.*s %11llu %10llu\n", 783 nwidth, nwidth, "Total", 784 (long long)inttotal, (long long)(inttotal / uptime)); 785 } 786 787 #define MAX_KMSTATS 1024 788 789 static long 790 cpuagg(size_t *ary) 791 { 792 int i; 793 long ttl; 794 795 for (i = ttl = 0; i < SMP_MAXCPU; ++i) 796 ttl += ary[i]; 797 return(ttl); 798 } 799 800 static void 801 domem(void) 802 { 803 struct malloc_type *ks; 804 int i, j; 805 int first, nkms; 806 long totuse = 0, totfree = 0, totreq = 0; 807 struct malloc_type kmemstats[MAX_KMSTATS], *kmsp; 808 char buf[1024]; 809 810 kread(X_KMEMSTATISTICS, &kmsp, sizeof(kmsp)); 811 for (nkms = 0; nkms < MAX_KMSTATS && kmsp != NULL; nkms++) { 812 if (sizeof(kmemstats[0]) != kvm_read(kd, (u_long)kmsp, 813 &kmemstats[nkms], sizeof(kmemstats[0]))) 814 err(1, "kvm_read(%p)", (void *)kmsp); 815 if (sizeof(buf) != kvm_read(kd, 816 (u_long)kmemstats[nkms].ks_shortdesc, buf, sizeof(buf))) 817 err(1, "kvm_read(%p)", 818 kmemstats[nkms].ks_shortdesc); 819 buf[sizeof(buf) - 1] = '\0'; 820 kmemstats[nkms].ks_shortdesc = strdup(buf); 821 kmsp = kmemstats[nkms].ks_next; 822 } 823 if (kmsp != NULL) 824 warnx("truncated to the first %d memory types", nkms); 825 826 printf( 827 "\nMemory statistics by type Type Kern\n"); 828 printf( 829 " Type InUse MemUse HighUse Limit Requests Limit Limit\n"); 830 for (i = 0, ks = &kmemstats[0]; i < nkms; i++, ks++) { 831 if (ks->ks_calls == 0) 832 continue; 833 printf("%19s%7ld%7ldK%7ldK%11zuK%10jd%5u%6u", 834 ks->ks_shortdesc, 835 cpuagg(ks->ks_inuse), (cpuagg(ks->ks_memuse) + 1023) / 1024, 836 (ks->ks_maxused + 1023) / 1024, 837 (ks->ks_limit + 1023) / 1024, (intmax_t)ks->ks_calls, 838 ks->ks_limblocks, ks->ks_mapblocks); 839 first = 1; 840 for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) { 841 if ((ks->ks_size & j) == 0) 842 continue; 843 if (first) 844 printf(" "); 845 else 846 printf(","); 847 if(j<1024) 848 printf("%d",j); 849 else 850 printf("%dK",j>>10); 851 first = 0; 852 } 853 printf("\n"); 854 totuse += cpuagg(ks->ks_memuse); 855 totreq += ks->ks_calls; 856 } 857 printf("\nMemory Totals: In Use Free Requests\n"); 858 printf(" %7ldK %6ldK %8ld\n", 859 (totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq); 860 } 861 862 static void 863 dozmem(void) 864 { 865 char *buf; 866 size_t bufsize; 867 868 buf = NULL; 869 bufsize = 1024; 870 for (;;) { 871 if ((buf = realloc(buf, bufsize)) == NULL) 872 err(1, "realloc()"); 873 if (sysctlbyname("vm.zone", buf, &bufsize, NULL, 0) == 0) 874 break; 875 if (errno != ENOMEM) 876 err(1, "sysctl()"); 877 bufsize *= 2; 878 } 879 buf[bufsize] = '\0'; /* play it safe */ 880 printf("%s\n\n", buf); 881 free(buf); 882 } 883 884 /* 885 * kread reads something from the kernel, given its nlist index. 886 */ 887 static void 888 kread(int nlx, void *addr, size_t size) 889 { 890 const char *sym; 891 892 if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) { 893 sym = namelist[nlx].n_name; 894 if (*sym == '_') 895 ++sym; 896 errx(1, "symbol %s not defined", sym); 897 } 898 if (kvm_read(kd, namelist[nlx].n_value, addr, size) != (ssize_t)size) { 899 sym = namelist[nlx].n_name; 900 if (*sym == '_') 901 ++sym; 902 errx(1, "%s: %s", sym, kvm_geterr(kd)); 903 } 904 } 905 906 static void 907 usage(void) 908 { 909 fprintf(stderr, "%s%s", 910 "usage: vmstat [-imsvz] [-c count] [-M core] [-N system] [-w wait]\n", 911 " [-n devs] [disks]\n"); 912 exit(1); 913 } 914