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