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 "$Id: vmstat.c,v 1.21 1997/10/10 18:19:48 phk Exp $"; 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/buf.h> 53 #include <sys/uio.h> 54 #include <sys/namei.h> 55 #include <sys/malloc.h> 56 #include <sys/signal.h> 57 #include <sys/fcntl.h> 58 #include <sys/ioctl.h> 59 #include <sys/sysctl.h> 60 #include <sys/vmmeter.h> 61 62 #include <vm/vm_param.h> 63 64 #include <ctype.h> 65 #include <err.h> 66 #include <errno.h> 67 #include <kvm.h> 68 #include <limits.h> 69 #include <nlist.h> 70 #include <paths.h> 71 #include <stdio.h> 72 #include <stdlib.h> 73 #include <string.h> 74 #include <sysexits.h> 75 #include <time.h> 76 #include <unistd.h> 77 78 struct nlist namelist[] = { 79 #define X_CPTIME 0 80 { "_cp_time" }, 81 #define X_DK_NDRIVE 1 82 { "_dk_ndrive" }, 83 #define X_SUM 2 84 { "_cnt" }, 85 #define X_BOOTTIME 3 86 { "_boottime" }, 87 #define X_DKXFER 4 88 { "_dk_xfer" }, 89 #define X_HZ 5 90 { "_hz" }, 91 #define X_STATHZ 6 92 { "_stathz" }, 93 #define X_NCHSTATS 7 94 { "_nchstats" }, 95 #define X_INTRNAMES 8 96 { "_intrnames" }, 97 #define X_EINTRNAMES 9 98 { "_eintrnames" }, 99 #define X_INTRCNT 10 100 { "_intrcnt" }, 101 #define X_EINTRCNT 11 102 { "_eintrcnt" }, 103 #define X_KMEMSTATISTICS 12 104 { "_kmemstatistics" }, 105 #define X_KMEMBUCKETS 13 106 { "_bucket" }, 107 #ifdef notyet 108 #define X_DEFICIT 14 109 { "_deficit" }, 110 #define X_FORKSTAT 15 111 { "_forkstat" }, 112 #define X_REC 16 113 { "_rectime" }, 114 #define X_PGIN 17 115 { "_pgintime" }, 116 #define X_XSTATS 18 117 { "_xstats" }, 118 #define X_END 19 119 #else 120 #define X_END 14 121 #endif 122 #if defined(hp300) || defined(luna68k) 123 #define X_HPDINIT (X_END) 124 { "_hp_dinit" }, 125 #endif 126 #if defined(i386) 127 #define X_DK_NAMES (X_END) 128 { "_dk_names" }, 129 #endif 130 #ifdef mips 131 #define X_SCSI_DINIT (X_END) 132 { "_scsi_dinit" }, 133 #endif 134 #ifdef tahoe 135 #define X_VBDINIT (X_END) 136 { "_vbdinit" }, 137 #define X_CKEYSTATS (X_END+1) 138 { "_ckeystats" }, 139 #define X_DKEYSTATS (X_END+2) 140 { "_dkeystats" }, 141 #endif 142 #ifdef vax 143 #define X_MBDINIT (X_END) 144 { "_mbdinit" }, 145 #define X_UBDINIT (X_END+1) 146 { "_ubdinit" }, 147 #endif 148 { "" }, 149 }; 150 151 struct _disk { 152 long time[CPUSTATES]; 153 long *xfer; 154 } cur, last; 155 156 struct vmmeter sum, osum; 157 char **dr_name; 158 int *dr_select, dk_ndrive, ndrives; 159 160 int winlines = 20; 161 162 kvm_t *kd; 163 164 #define FORKSTAT 0x01 165 #define INTRSTAT 0x02 166 #define MEMSTAT 0x04 167 #define SUMSTAT 0x08 168 #define TIMESTAT 0x10 169 #define VMSTAT 0x20 170 171 #include "names.c" /* disk names -- machine dependent */ 172 173 void cpustats(), dkstats(), dointr(), domem(), dosum(); 174 void dovmstat(), kread(), usage(); 175 #ifdef notyet 176 void dotimes(), doforkst(); 177 #endif 178 void printhdr __P((void)); 179 180 int 181 main(argc, argv) 182 register int argc; 183 register char **argv; 184 { 185 register int c, todo; 186 u_int interval; 187 int reps; 188 char *memf, *nlistf; 189 char errbuf[_POSIX2_LINE_MAX]; 190 191 memf = nlistf = NULL; 192 interval = reps = todo = 0; 193 while ((c = getopt(argc, argv, "c:fiM:mN:stw:")) != -1) { 194 switch (c) { 195 case 'c': 196 reps = atoi(optarg); 197 break; 198 case 'f': 199 #ifdef notyet 200 todo |= FORKSTAT; 201 #else 202 errx(EX_USAGE, "sorry, -f is not (re)implemented yet"); 203 #endif 204 break; 205 case 'i': 206 todo |= INTRSTAT; 207 break; 208 case 'M': 209 memf = optarg; 210 break; 211 case 'm': 212 todo |= MEMSTAT; 213 break; 214 case 'N': 215 nlistf = optarg; 216 break; 217 case 's': 218 todo |= SUMSTAT; 219 break; 220 case 't': 221 #ifdef notyet 222 todo |= TIMESTAT; 223 #else 224 errx(EX_USAGE, "sorry, -t is not (re)implemented yet"); 225 #endif 226 break; 227 case 'w': 228 interval = atoi(optarg); 229 break; 230 case '?': 231 default: 232 usage(); 233 } 234 } 235 argc -= optind; 236 argv += optind; 237 238 if (todo == 0) 239 todo = VMSTAT; 240 241 /* 242 * Discard setgid privileges if not the running kernel so that bad 243 * guys can't print interesting stuff from kernel memory. 244 */ 245 if (nlistf != NULL || memf != NULL) 246 setgid(getgid()); 247 248 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf); 249 if (kd == 0) 250 errx(1, "kvm_openfiles: %s", errbuf); 251 252 if ((c = kvm_nlist(kd, namelist)) != 0) { 253 if (c > 0) { 254 warnx("undefined symbols:"); 255 for (c = 0; 256 c < sizeof(namelist)/sizeof(namelist[0]); c++) 257 if (namelist[c].n_type == 0) 258 fprintf(stderr, " %s", 259 namelist[c].n_name); 260 (void)fputc('\n', stderr); 261 } else 262 warnx("kvm_nlist: %s", kvm_geterr(kd)); 263 exit(1); 264 } 265 266 if (todo & VMSTAT) { 267 char **getdrivedata(); 268 struct winsize winsize; 269 270 argv = getdrivedata(argv); 271 winsize.ws_row = 0; 272 (void) ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&winsize); 273 if (winsize.ws_row > 0) 274 winlines = winsize.ws_row; 275 276 } 277 278 #define BACKWARD_COMPATIBILITY 279 #ifdef BACKWARD_COMPATIBILITY 280 if (*argv) { 281 interval = atoi(*argv); 282 if (*++argv) 283 reps = atoi(*argv); 284 } 285 #endif 286 287 if (interval) { 288 if (!reps) 289 reps = -1; 290 } else if (reps) 291 interval = 1; 292 293 #ifdef notyet 294 if (todo & FORKSTAT) 295 doforkst(); 296 #endif 297 if (todo & MEMSTAT) 298 domem(); 299 if (todo & SUMSTAT) 300 dosum(); 301 #ifdef notyet 302 if (todo & TIMESTAT) 303 dotimes(); 304 #endif 305 if (todo & INTRSTAT) 306 dointr(); 307 if (todo & VMSTAT) 308 dovmstat(interval, reps); 309 exit(0); 310 } 311 312 char ** 313 getdrivedata(argv) 314 char **argv; 315 { 316 register int i; 317 register char **cp; 318 char buf[30]; 319 320 kread(X_DK_NDRIVE, &dk_ndrive, sizeof(dk_ndrive)); 321 if (dk_ndrive < 0) 322 errx(1, "dk_ndrive %d", dk_ndrive); 323 dr_select = calloc((size_t)dk_ndrive, sizeof(int)); 324 dr_name = calloc((size_t)dk_ndrive, sizeof(char *)); 325 for (i = 0; i < dk_ndrive; i++) 326 dr_name[i] = NULL; 327 cur.xfer = calloc((size_t)dk_ndrive, sizeof(long)); 328 last.xfer = calloc((size_t)dk_ndrive, sizeof(long)); 329 if (!read_names()) 330 exit (1); 331 for (i = 0; i < dk_ndrive; i++) 332 if (dr_name[i] == NULL) { 333 (void)sprintf(buf, "??%d", i); 334 dr_name[i] = strdup(buf); 335 } 336 337 /* 338 * Choose drives to be displayed. Priority goes to (in order) drives 339 * supplied as arguments, default drives. If everything isn't filled 340 * in and there are drives not taken care of, display the first few 341 * that fit. 342 */ 343 #define BACKWARD_COMPATIBILITY 344 for (ndrives = 0; *argv; ++argv) { 345 #ifdef BACKWARD_COMPATIBILITY 346 if (isdigit(**argv)) 347 break; 348 #endif 349 for (i = 0; i < dk_ndrive; i++) { 350 if (strcmp(dr_name[i], *argv)) 351 continue; 352 dr_select[i] = 1; 353 ++ndrives; 354 break; 355 } 356 } 357 for (i = 0; i < dk_ndrive && ndrives < 4; i++) { 358 if (dr_select[i]) 359 continue; 360 for (cp = defdrives; *cp; cp++) 361 if (strcmp(dr_name[i], *cp) == 0) { 362 dr_select[i] = 1; 363 ++ndrives; 364 break; 365 } 366 } 367 for (i = 0; i < dk_ndrive && ndrives < 4; i++) { 368 if (dr_select[i]) 369 continue; 370 dr_select[i] = 1; 371 ++ndrives; 372 } 373 return(argv); 374 } 375 376 long 377 getuptime() 378 { 379 static time_t now, boottime; 380 time_t uptime; 381 382 if (boottime == 0) 383 kread(X_BOOTTIME, &boottime, sizeof(boottime)); 384 (void)time(&now); 385 uptime = now - boottime; 386 if (uptime <= 0 || uptime > 60*60*24*365*10) 387 errx(1, "time makes no sense; namelist must be wrong"); 388 return(uptime); 389 } 390 391 int hz, hdrcnt; 392 393 void 394 dovmstat(interval, reps) 395 u_int interval; 396 int reps; 397 { 398 struct vmtotal total; 399 time_t uptime, halfuptime; 400 void needhdr(); 401 int mib[2], size; 402 403 uptime = getuptime(); 404 halfuptime = uptime / 2; 405 (void)signal(SIGCONT, needhdr); 406 407 if (namelist[X_STATHZ].n_type != 0 && namelist[X_STATHZ].n_value != 0) 408 kread(X_STATHZ, &hz, sizeof(hz)); 409 if (!hz) 410 kread(X_HZ, &hz, sizeof(hz)); 411 412 for (hdrcnt = 1;;) { 413 if (!--hdrcnt) 414 printhdr(); 415 kread(X_CPTIME, cur.time, sizeof(cur.time)); 416 kread(X_DKXFER, cur.xfer, sizeof(*cur.xfer) * dk_ndrive); 417 kread(X_SUM, &sum, sizeof(sum)); 418 size = sizeof(total); 419 mib[0] = CTL_VM; 420 mib[1] = VM_METER; 421 if (sysctl(mib, 2, &total, &size, NULL, 0) < 0) { 422 printf("Can't get kerninfo: %s\n", strerror(errno)); 423 bzero(&total, sizeof(total)); 424 } 425 (void)printf("%2d%2d%2d", 426 total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw); 427 #define pgtok(a) ((a) * sum.v_page_size >> 10) 428 #define rate(x) (((x) + halfuptime) / uptime) /* round */ 429 (void)printf("%8ld%6ld ", 430 (long)pgtok(total.t_avm), (long)pgtok(total.t_free)); 431 (void)printf("%4lu ", rate(sum.v_vm_faults - osum.v_vm_faults)); 432 (void)printf("%3lu ", 433 rate(sum.v_reactivated - osum.v_reactivated)); 434 (void)printf("%3lu ", rate(sum.v_swapin + sum.v_vnodein - 435 (osum.v_swapin + osum.v_vnodein))); 436 (void)printf("%3lu ", rate(sum.v_swapout + sum.v_vnodeout - 437 (osum.v_swapout + osum.v_vnodeout))); 438 (void)printf("%3lu ", rate(sum.v_tfree - osum.v_tfree)); 439 (void)printf("%3lu ", rate(sum.v_pdpages - osum.v_pdpages)); 440 dkstats(); 441 (void)printf("%4lu %4lu %3lu ", 442 rate(sum.v_intr - osum.v_intr), 443 rate(sum.v_syscall - osum.v_syscall), 444 rate(sum.v_swtch - osum.v_swtch)); 445 cpustats(); 446 (void)printf("\n"); 447 (void)fflush(stdout); 448 if (reps >= 0 && --reps <= 0) 449 break; 450 osum = sum; 451 uptime = interval; 452 /* 453 * We round upward to avoid losing low-frequency events 454 * (i.e., >= 1 per interval but < 1 per second). 455 */ 456 if (interval != 1) 457 halfuptime = (uptime + 1) / 2; 458 else 459 halfuptime = 0; 460 (void)sleep(interval); 461 } 462 } 463 464 void 465 printhdr() 466 { 467 register int i; 468 469 (void)printf(" procs memory page%*s", 20, ""); 470 if (ndrives > 1) 471 (void)printf("disks %*s faults cpu\n", 472 ndrives * 3 - 6, ""); 473 else 474 (void)printf("%*s faults cpu\n", ndrives * 3, ""); 475 (void)printf(" r b w avm fre flt re pi po fr sr "); 476 for (i = 0; i < dk_ndrive; i++) 477 if (dr_select[i]) 478 (void)printf("%c%c ", dr_name[i][0], 479 dr_name[i][strlen(dr_name[i]) - 1]); 480 (void)printf(" in sy cs us sy id\n"); 481 hdrcnt = winlines - 2; 482 } 483 484 /* 485 * Force a header to be prepended to the next output. 486 */ 487 void 488 needhdr() 489 { 490 491 hdrcnt = 1; 492 } 493 494 #ifdef notyet 495 void 496 dotimes() 497 { 498 u_int pgintime, rectime; 499 500 kread(X_REC, &rectime, sizeof(rectime)); 501 kread(X_PGIN, &pgintime, sizeof(pgintime)); 502 kread(X_SUM, &sum, sizeof(sum)); 503 (void)printf("%u reclaims, %u total time (usec)\n", 504 sum.v_pgrec, rectime); 505 (void)printf("average: %u usec / reclaim\n", rectime / sum.v_pgrec); 506 (void)printf("\n"); 507 (void)printf("%u page ins, %u total time (msec)\n", 508 sum.v_pgin, pgintime / 10); 509 (void)printf("average: %8.1f msec / page in\n", 510 pgintime / (sum.v_pgin * 10.0)); 511 } 512 #endif 513 514 long 515 pct(top, bot) 516 long top, bot; 517 { 518 long ans; 519 520 if (bot == 0) 521 return(0); 522 ans = (quad_t)top * 100 / bot; 523 return (ans); 524 } 525 526 #define PCT(top, bot) pct((long)(top), (long)(bot)) 527 528 #if defined(tahoe) 529 #include <machine/cpu.h> 530 #endif 531 532 void 533 dosum() 534 { 535 struct nchstats nchstats; 536 long nchtotal; 537 #if defined(tahoe) 538 struct keystats keystats; 539 #endif 540 541 kread(X_SUM, &sum, sizeof(sum)); 542 (void)printf("%9u cpu context switches\n", sum.v_swtch); 543 (void)printf("%9u device interrupts\n", sum.v_intr); 544 (void)printf("%9u software interrupts\n", sum.v_soft); 545 #ifdef vax 546 (void)printf("%9u pseudo-dma dz interrupts\n", sum.v_pdma); 547 #endif 548 (void)printf("%9u traps\n", sum.v_trap); 549 (void)printf("%9u system calls\n", sum.v_syscall); 550 (void)printf("%9u swap pager pageins\n", sum.v_swapin); 551 (void)printf("%9u swap pager pages paged in\n", sum.v_swappgsin); 552 (void)printf("%9u swap pager pageouts\n", sum.v_swapout); 553 (void)printf("%9u swap pager pages paged out\n", sum.v_swappgsout); 554 (void)printf("%9u vnode pager pageins\n", sum.v_vnodein); 555 (void)printf("%9u vnode pager pages paged in\n", sum.v_vnodepgsin); 556 (void)printf("%9u vnode pager pageouts\n", sum.v_vnodeout); 557 (void)printf("%9u vnode pager pages paged out\n", sum.v_vnodepgsout); 558 (void)printf("%9u page daemon wakeups\n", sum.v_pdwakeups); 559 (void)printf("%9u pages examined by the page daemon\n", sum.v_pdpages); 560 (void)printf("%9u pages reactivated\n", sum.v_reactivated); 561 (void)printf("%9u copy-on-write faults\n", sum.v_cow_faults); 562 (void)printf("%9u zero fill pages zeroed\n", sum.v_zfod); 563 (void)printf("%9u intransit blocking page faults\n", sum.v_intrans); 564 (void)printf("%9u total VM faults taken\n", sum.v_vm_faults); 565 (void)printf("%9u pages freed\n", sum.v_tfree); 566 (void)printf("%9u pages freed by daemon\n", sum.v_dfree); 567 (void)printf("%9u pages freed by exiting processes\n", sum.v_pfree); 568 (void)printf("%9u pages active\n", sum.v_active_count); 569 (void)printf("%9u pages inactive\n", sum.v_inactive_count); 570 (void)printf("%9u pages in VM cache\n", sum.v_cache_count); 571 (void)printf("%9u pages wired down\n", sum.v_wire_count); 572 (void)printf("%9u pages free\n", sum.v_free_count); 573 (void)printf("%9u bytes per page\n", sum.v_page_size); 574 kread(X_NCHSTATS, &nchstats, sizeof(nchstats)); 575 nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits + 576 nchstats.ncs_badhits + nchstats.ncs_falsehits + 577 nchstats.ncs_miss + nchstats.ncs_long; 578 (void)printf("%9ld total name lookups\n", nchtotal); 579 (void)printf( 580 "%9s cache hits (%ld%% pos + %ld%% neg) system %ld%% per-directory\n", 581 "", PCT(nchstats.ncs_goodhits, nchtotal), 582 PCT(nchstats.ncs_neghits, nchtotal), 583 PCT(nchstats.ncs_pass2, nchtotal)); 584 (void)printf("%9s deletions %ld%%, falsehits %ld%%, toolong %ld%%\n", "", 585 PCT(nchstats.ncs_badhits, nchtotal), 586 PCT(nchstats.ncs_falsehits, nchtotal), 587 PCT(nchstats.ncs_long, nchtotal)); 588 #if defined(tahoe) 589 kread(X_CKEYSTATS, &keystats, sizeof(keystats)); 590 (void)printf("%9d %s (free %d%% norefs %d%% taken %d%% shared %d%%)\n", 591 keystats.ks_allocs, "code cache keys allocated", 592 PCT(keystats.ks_allocfree, keystats.ks_allocs), 593 PCT(keystats.ks_norefs, keystats.ks_allocs), 594 PCT(keystats.ks_taken, keystats.ks_allocs), 595 PCT(keystats.ks_shared, keystats.ks_allocs)); 596 kread(X_DKEYSTATS, &keystats, sizeof(keystats)); 597 (void)printf("%9d %s (free %d%% norefs %d%% taken %d%% shared %d%%)\n", 598 keystats.ks_allocs, "data cache keys allocated", 599 PCT(keystats.ks_allocfree, keystats.ks_allocs), 600 PCT(keystats.ks_norefs, keystats.ks_allocs), 601 PCT(keystats.ks_taken, keystats.ks_allocs), 602 PCT(keystats.ks_shared, keystats.ks_allocs)); 603 #endif 604 } 605 606 #ifdef notyet 607 void 608 doforkst() 609 { 610 struct forkstat fks; 611 612 kread(X_FORKSTAT, &fks, sizeof(struct forkstat)); 613 (void)printf("%d forks, %d pages, average %.2f\n", 614 fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork); 615 (void)printf("%d vforks, %d pages, average %.2f\n", 616 fks.cntvfork, fks.sizvfork, (double)fks.sizvfork / fks.cntvfork); 617 } 618 #endif 619 620 void 621 dkstats() 622 { 623 register int dn, state; 624 double etime; 625 long tmp; 626 627 for (dn = 0; dn < dk_ndrive; ++dn) { 628 tmp = cur.xfer[dn]; 629 cur.xfer[dn] -= last.xfer[dn]; 630 last.xfer[dn] = tmp; 631 } 632 etime = 0; 633 for (state = 0; state < CPUSTATES; ++state) { 634 tmp = cur.time[state]; 635 cur.time[state] -= last.time[state]; 636 last.time[state] = tmp; 637 etime += cur.time[state]; 638 } 639 if (etime == 0) 640 etime = 1; 641 etime /= hz; 642 for (dn = 0; dn < dk_ndrive; ++dn) { 643 if (!dr_select[dn]) 644 continue; 645 (void)printf("%2.0f ", cur.xfer[dn] / etime); 646 } 647 } 648 649 void 650 cpustats() 651 { 652 register int state; 653 double pct, total; 654 655 total = 0; 656 for (state = 0; state < CPUSTATES; ++state) 657 total += cur.time[state]; 658 if (total) 659 pct = 100 / total; 660 else 661 pct = 0; 662 (void)printf("%2.0f ", (cur.time[CP_USER] + cur.time[CP_NICE]) * pct); 663 (void)printf("%2.0f ", (cur.time[CP_SYS] + cur.time[CP_INTR]) * pct); 664 (void)printf("%2.0f", cur.time[CP_IDLE] * pct); 665 } 666 667 void 668 dointr() 669 { 670 register long *intrcnt, inttotal, uptime; 671 register int nintr, inamlen; 672 register char *intrname; 673 674 uptime = getuptime(); 675 nintr = namelist[X_EINTRCNT].n_value - namelist[X_INTRCNT].n_value; 676 inamlen = 677 namelist[X_EINTRNAMES].n_value - namelist[X_INTRNAMES].n_value; 678 intrcnt = malloc((size_t)nintr); 679 intrname = malloc((size_t)inamlen); 680 if (intrcnt == NULL || intrname == NULL) 681 errx(1, "malloc"); 682 kread(X_INTRCNT, intrcnt, (size_t)nintr); 683 kread(X_INTRNAMES, intrname, (size_t)inamlen); 684 (void)printf("interrupt total rate\n"); 685 inttotal = 0; 686 nintr /= sizeof(long); 687 while (--nintr >= 0) { 688 if (*intrcnt) 689 (void)printf("%-12s %8ld %8ld\n", intrname, 690 *intrcnt, *intrcnt / uptime); 691 intrname += strlen(intrname) + 1; 692 inttotal += *intrcnt++; 693 } 694 (void)printf("Total %8ld %8ld\n", inttotal, inttotal / uptime); 695 } 696 697 void 698 domem() 699 { 700 register struct kmembuckets *kp; 701 register struct malloc_type *ks; 702 register int i, j; 703 int len, size, first, nkms; 704 long totuse = 0, totfree = 0, totreq = 0; 705 const char *name; 706 struct malloc_type kmemstats[200],*kmsp; 707 char *kmemnames[200]; 708 char buf[1024]; 709 struct kmembuckets buckets[MINBUCKET + 16]; 710 711 kread(X_KMEMBUCKETS, buckets, sizeof(buckets)); 712 kread(X_KMEMSTATISTICS, &kmsp, sizeof(kmsp)); 713 for (nkms=0; nkms < 200 && kmsp; nkms++) { 714 if (sizeof(kmemstats[0]) != kvm_read(kd, (u_long)kmsp, 715 &kmemstats[nkms], sizeof(kmemstats[0]))) 716 err(1,"kvm_read(%08x)", (u_long)kmsp); 717 if (sizeof(buf) != kvm_read(kd, 718 (u_long)kmemstats[nkms].ks_shortdesc, buf, sizeof(buf))) 719 err(1,"kvm_read(%08x)", 720 (u_long)kmemstats[nkms].ks_shortdesc); 721 kmemstats[nkms].ks_shortdesc = strdup(buf); 722 kmsp = kmemstats[nkms].ks_next; 723 } 724 (void)printf("Memory statistics by bucket size\n"); 725 (void)printf( 726 "Size In Use Free Requests HighWater Couldfree\n"); 727 for (i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16; i++, kp++) { 728 if (kp->kb_calls == 0) 729 continue; 730 size = 1 << i; 731 if(size < 1024) 732 (void)printf("%4d",size); 733 else 734 (void)printf("%3dK",size>>10); 735 (void)printf(" %8ld %6ld %10ld %7ld %10ld\n", 736 kp->kb_total - kp->kb_totalfree, 737 kp->kb_totalfree, kp->kb_calls, 738 kp->kb_highwat, kp->kb_couldfree); 739 totfree += size * kp->kb_totalfree; 740 } 741 742 (void)printf("\nMemory usage type by bucket size\n"); 743 (void)printf("Size Type(s)\n"); 744 kp = &buckets[MINBUCKET]; 745 for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) { 746 if (kp->kb_calls == 0) 747 continue; 748 first = 1; 749 len = 8; 750 for (i = 0, ks = &kmemstats[0]; i < nkms; i++, ks++) { 751 if (ks->ks_calls == 0) 752 continue; 753 if ((ks->ks_size & j) == 0) 754 continue; 755 name = ks->ks_shortdesc; 756 len += 2 + strlen(name); 757 if (first && j < 1024) 758 printf("%4d %s", j, name); 759 else if (first) 760 printf("%3dK %s", j>>10, name); 761 else 762 printf(","); 763 if (len >= 79) { 764 printf("\n\t "); 765 len = 10 + strlen(name); 766 } 767 if (!first) 768 printf(" %s", name); 769 first = 0; 770 } 771 printf("\n"); 772 } 773 774 (void)printf( 775 "\nMemory statistics by type Type Kern\n"); 776 (void)printf( 777 " Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)\n"); 778 for (i = 0, ks = &kmemstats[0]; i < nkms; i++, ks++) { 779 if (ks->ks_calls == 0) 780 continue; 781 (void)printf("%13s%6ld%6ldK%7ldK%6ldK%9ld%5u%6u", 782 ks->ks_shortdesc, 783 ks->ks_inuse, (ks->ks_memuse + 1023) / 1024, 784 (ks->ks_maxused + 1023) / 1024, 785 (ks->ks_limit + 1023) / 1024, ks->ks_calls, 786 ks->ks_limblocks, ks->ks_mapblocks); 787 first = 1; 788 for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) { 789 if ((ks->ks_size & j) == 0) 790 continue; 791 if (first) 792 printf(" "); 793 else 794 printf(","); 795 if(j<1024) 796 printf("%d",j); 797 else 798 printf("%dK",j>>10); 799 first = 0; 800 } 801 printf("\n"); 802 totuse += ks->ks_memuse; 803 totreq += ks->ks_calls; 804 } 805 (void)printf("\nMemory Totals: In Use Free Requests\n"); 806 (void)printf(" %7ldK %6ldK %8ld\n", 807 (totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq); 808 } 809 810 /* 811 * kread reads something from the kernel, given its nlist index. 812 */ 813 void 814 kread(nlx, addr, size) 815 int nlx; 816 void *addr; 817 size_t size; 818 { 819 char *sym; 820 821 if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) { 822 sym = namelist[nlx].n_name; 823 if (*sym == '_') 824 ++sym; 825 errx(1, "symbol %s not defined", sym); 826 } 827 if (kvm_read(kd, namelist[nlx].n_value, addr, size) != size) { 828 sym = namelist[nlx].n_name; 829 if (*sym == '_') 830 ++sym; 831 errx(1, "%s: %s", sym, kvm_geterr(kd)); 832 } 833 } 834 835 void 836 usage() 837 { 838 (void)fprintf(stderr, 839 "usage: vmstat [-ims] [-c count] [-M core] [-N system] [-w wait] [disks]\n"); 840 exit(1); 841 } 842