1 /* 2 * Copyright (c) 1980, 1986, 1991 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 8 #ifndef lint 9 char copyright[] = 10 "@(#) Copyright (c) 1980, 1986, 1991 The Regents of the University of California.\n\ 11 All rights reserved.\n"; 12 #endif /* not lint */ 13 14 #ifndef lint 15 static char sccsid[] = "@(#)vmstat.c 5.30 (Berkeley) 06/20/91"; 16 #endif /* not lint */ 17 18 #include <sys/param.h> 19 #include <sys/time.h> 20 #include <sys/proc.h> 21 #include <sys/user.h> 22 #include <sys/dkstat.h> 23 #include <sys/buf.h> 24 #include <sys/namei.h> 25 #include <sys/malloc.h> 26 #include <sys/signal.h> 27 #include <sys/fcntl.h> 28 #include <sys/ioctl.h> 29 #include <sys/vmmeter.h> 30 #include <vm/vm.h> 31 #include <vm/vm_statistics.h> 32 #include <time.h> 33 #include <nlist.h> 34 #include <kvm.h> 35 #include <errno.h> 36 #include <unistd.h> 37 #include <stdio.h> 38 #include <ctype.h> 39 #include <stdlib.h> 40 #include <string.h> 41 #include <paths.h> 42 43 #define NEWVM /* XXX till old has been updated or purged */ 44 struct nlist nl[] = { 45 #define X_CPTIME 0 46 { "_cp_time" }, 47 #define X_TOTAL 1 48 { "_total" }, 49 #define X_SUM 2 50 { "_cnt" }, /* XXX for now that's where it is */ 51 #define X_BOOTTIME 3 52 { "_boottime" }, 53 #define X_DKXFER 4 54 { "_dk_xfer" }, 55 #define X_HZ 5 56 { "_hz" }, 57 #define X_PHZ 6 58 { "_phz" }, 59 #define X_NCHSTATS 7 60 { "_nchstats" }, 61 #define X_INTRNAMES 8 62 { "_intrnames" }, 63 #define X_EINTRNAMES 9 64 { "_eintrnames" }, 65 #define X_INTRCNT 10 66 { "_intrcnt" }, 67 #define X_EINTRCNT 11 68 { "_eintrcnt" }, 69 #define X_DK_NDRIVE 12 70 { "_dk_ndrive" }, 71 #define X_KMEMSTAT 13 72 { "_kmemstats" }, 73 #define X_KMEMBUCKETS 14 74 { "_bucket" }, 75 #define X_VMSTAT 15 76 { "_vm_stat" }, 77 #ifdef notdef 78 #define X_DEFICIT 15 79 { "_deficit" }, 80 #define X_FORKSTAT 16 81 { "_forkstat" }, 82 #define X_REC 17 83 { "_rectime" }, 84 #define X_PGIN 18 85 { "_pgintime" }, 86 #define X_XSTATS 19 87 { "_xstats" }, 88 #define X_END 19 89 #else 90 #define X_END 15 91 #endif 92 #ifdef hp300 93 #define X_HPDINIT (X_END+1) 94 { "_hp_dinit" }, 95 #endif 96 #ifdef tahoe 97 #define X_VBDINIT (X_END+1) 98 { "_vbdinit" }, 99 #define X_CKEYSTATS (X_END+2) 100 { "_ckeystats" }, 101 #define X_DKEYSTATS (X_END+3) 102 { "_dkeystats" }, 103 #endif 104 #ifdef vax 105 #define X_MBDINIT (X_END+1) 106 { "_mbdinit" }, 107 #define X_UBDINIT (X_END+2) 108 { "_ubdinit" }, 109 #endif 110 { "" }, 111 }; 112 113 struct _disk { 114 long time[CPUSTATES]; 115 long *xfer; 116 } cur, last; 117 118 struct vm_statistics vm_stat, ostat; 119 struct vmmeter sum, osum; 120 char *vmunix = _PATH_UNIX; 121 char **dr_name; 122 int *dr_select, dk_ndrive, ndrives; 123 124 int winlines = 20; 125 126 #define FORKSTAT 0x01 127 #define INTRSTAT 0x02 128 #define MEMSTAT 0x04 129 #define SUMSTAT 0x08 130 #define TIMESTAT 0x10 131 #define VMSTAT 0x20 132 133 #include "names.c" /* disk names -- machine dependent */ 134 135 void cpustats(), dkstats(), dointr(), domem(), dosum(); 136 void dovmstat(), kread(), usage(); 137 #ifdef notdef 138 void dotimes(), doforkst(); 139 #endif 140 141 main(argc, argv) 142 register int argc; 143 register char **argv; 144 { 145 extern int optind; 146 extern char *optarg; 147 register int c, todo; 148 u_int interval; 149 int reps; 150 char *kmem; 151 152 kmem = NULL; 153 interval = reps = todo = 0; 154 while ((c = getopt(argc, argv, "c:fiM:mN:stw:")) != EOF) { 155 switch (c) { 156 case 'c': 157 reps = atoi(optarg); 158 break; 159 #ifndef notdef 160 case 'f': 161 todo |= FORKSTAT; 162 break; 163 #endif 164 case 'i': 165 todo |= INTRSTAT; 166 break; 167 case 'M': 168 kmem = optarg; 169 break; 170 case 'm': 171 todo |= MEMSTAT; 172 break; 173 case 'N': 174 vmunix = optarg; 175 break; 176 case 's': 177 todo |= SUMSTAT; 178 break; 179 #ifndef notdef 180 case 't': 181 todo |= TIMESTAT; 182 break; 183 #endif 184 case 'w': 185 interval = atoi(optarg); 186 break; 187 case '?': 188 default: 189 usage(); 190 } 191 } 192 argc -= optind; 193 argv += optind; 194 195 if (todo == 0) 196 todo = VMSTAT; 197 198 if (kvm_openfiles(vmunix, kmem, NULL) < 0) { 199 (void)fprintf(stderr, 200 "vmstat: kvm_openfiles: %s\n", kvm_geterr()); 201 exit(1); 202 } 203 204 if ((c = kvm_nlist(nl)) != 0) { 205 if (c > 0) { 206 (void)fprintf(stderr, 207 "vmstat: undefined symbols in %s:", vmunix); 208 for (c = 0; c < sizeof(nl)/sizeof(nl[0]); c++) 209 if (nl[c].n_type == 0) 210 printf(" %s", nl[c].n_name); 211 (void)fputc('\n', stderr); 212 } else 213 (void)fprintf(stderr, "vmstat: kvm_nlist: %s\n", 214 kvm_geterr()); 215 exit(1); 216 } 217 218 if (todo & VMSTAT) { 219 char **getdrivedata(); 220 struct winsize winsize; 221 222 argv = getdrivedata(argv); 223 winsize.ws_row = 0; 224 (void) ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&winsize); 225 if (winsize.ws_row > 0) 226 winlines = winsize.ws_row; 227 228 } 229 230 #define BACKWARD_COMPATIBILITY 231 #ifdef BACKWARD_COMPATIBILITY 232 if (*argv) { 233 interval = atoi(*argv); 234 if (*++argv) 235 reps = atoi(*argv); 236 } 237 #endif 238 239 if (interval) { 240 if (!reps) 241 reps = -1; 242 } else if (reps) 243 interval = 1; 244 245 #ifdef notdef 246 if (todo & FORKSTAT) 247 doforkst(); 248 #endif 249 if (todo & MEMSTAT) 250 domem(); 251 if (todo & SUMSTAT) 252 dosum(); 253 #ifdef notdef 254 if (todo & TIMESTAT) 255 dotimes(); 256 #endif 257 if (todo & INTRSTAT) 258 dointr(); 259 if (todo & VMSTAT) 260 dovmstat(interval, reps); 261 exit(0); 262 } 263 264 char ** 265 getdrivedata(argv) 266 char **argv; 267 { 268 register int i; 269 register char **cp; 270 char buf[30]; 271 272 kread(X_DK_NDRIVE, &dk_ndrive, sizeof(dk_ndrive)); 273 if (dk_ndrive <= 0) { 274 (void)fprintf(stderr, "vmstat: dk_ndrive %d\n", dk_ndrive); 275 exit(1); 276 } 277 dr_select = calloc((size_t)dk_ndrive, sizeof(int)); 278 dr_name = calloc((size_t)dk_ndrive, sizeof(char *)); 279 for (i = 0; i < dk_ndrive; i++) 280 dr_name[i] = NULL; 281 cur.xfer = calloc((size_t)dk_ndrive, sizeof(long)); 282 last.xfer = calloc((size_t)dk_ndrive, sizeof(long)); 283 read_names(); 284 for (i = 0; i < dk_ndrive; i++) 285 if (dr_name[i] == NULL) { 286 (void)sprintf(buf, "??%d", i); 287 dr_name[i] = strdup(buf); 288 } 289 290 /* 291 * Choose drives to be displayed. Priority goes to (in order) drives 292 * supplied as arguments, default drives. If everything isn't filled 293 * in and there are drives not taken care of, display the first few 294 * that fit. 295 */ 296 #define BACKWARD_COMPATIBILITY 297 for (ndrives = 0; *argv; ++argv) { 298 #ifdef BACKWARD_COMPATIBILITY 299 if (isdigit(**argv)) 300 break; 301 #endif 302 for (i = 0; i < dk_ndrive; i++) { 303 if (strcmp(dr_name[i], *argv)) 304 continue; 305 dr_select[i] = 1; 306 ++ndrives; 307 break; 308 } 309 } 310 for (i = 0; i < dk_ndrive && ndrives < 4; i++) { 311 if (dr_select[i]) 312 continue; 313 for (cp = defdrives; *cp; cp++) 314 if (strcmp(dr_name[i], *cp) == 0) { 315 dr_select[i] = 1; 316 ++ndrives; 317 break; 318 } 319 } 320 for (i = 0; i < dk_ndrive && ndrives < 4; i++) { 321 if (dr_select[i]) 322 continue; 323 dr_select[i] = 1; 324 ++ndrives; 325 } 326 return(argv); 327 } 328 329 long 330 getuptime() 331 { 332 static time_t now, boottime; 333 time_t uptime; 334 335 if (boottime == 0) 336 kread(X_BOOTTIME, &boottime, sizeof(boottime)); 337 (void)time(&now); 338 uptime = now - boottime; 339 if (uptime <= 0 || uptime > 60*60*24*365*10) { 340 (void)fprintf(stderr, 341 "vmstat: time makes no sense; namelist must be wrong.\n"); 342 exit(1); 343 } 344 return(uptime); 345 } 346 347 int hz, hdrcnt; 348 349 void 350 dovmstat(interval, reps) 351 u_int interval; 352 int reps; 353 { 354 struct vmtotal total; 355 time_t uptime, halfuptime; 356 void needhdr(); 357 #ifndef notdef 358 int deficit; 359 #endif 360 361 uptime = getuptime(); 362 halfuptime = uptime / 2; 363 (void)signal(SIGCONT, needhdr); 364 365 if (nl[X_PHZ].n_type != 0 && nl[X_PHZ].n_value != 0) 366 kread(X_PHZ, &hz, sizeof(hz)); 367 if (!hz) 368 kread(X_HZ, &hz, sizeof(hz)); 369 370 for (hdrcnt = 1;;) { 371 if (!--hdrcnt) 372 printhdr(); 373 kread(X_CPTIME, cur.time, sizeof(cur.time)); 374 kread(X_DKXFER, cur.xfer, sizeof(*cur.xfer * dk_ndrive)); 375 kread(X_SUM, &sum, sizeof(sum)); 376 kread(X_TOTAL, &total, sizeof(total)); 377 kread(X_VMSTAT, &vm_stat, sizeof(vm_stat)); 378 #ifdef notdef 379 kread(X_DEFICIT, &deficit, sizeof(deficit)); 380 #endif 381 (void)printf("%2d %1d %1d ", 382 total.t_rq, total.t_dw + total.t_pw, total.t_sw); 383 #define pgtok(a) ((a)*NBPG >> 10) 384 #define rate(x) (((x) + halfuptime) / uptime) /* round */ 385 (void)printf("%5ld %5ld ", 386 pgtok(total.t_avm), pgtok(total.t_free)); 387 #ifdef NEWVM 388 (void)printf("%4lu ", rate(vm_stat.faults - ostat.faults)); 389 (void)printf("%3lu ", 390 rate(vm_stat.reactivations - ostat.reactivations)); 391 (void)printf("%3lu ", rate(vm_stat.pageins - ostat.pageins)); 392 (void)printf("%3lu %3lu ", 393 rate(vm_stat.pageouts - ostat.pageouts), 0); 394 #else 395 (void)printf("%3lu %2lu ", 396 rate(sum.v_pgrec - (sum.v_xsfrec+sum.v_xifrec) - 397 (osum.v_pgrec - (osum.v_xsfrec+osum.v_xifrec))), 398 rate(sum.v_xsfrec + sum.v_xifrec - 399 osum.v_xsfrec - osum.v_xifrec)); 400 (void)printf("%3lu ", 401 rate(pgtok(sum.v_pgpgin - osum.v_pgpgin))); 402 (void)printf("%3lu %3lu ", 403 rate(pgtok(sum.v_pgpgout - osum.v_pgpgout)), 404 rate(pgtok(sum.v_dfree - osum.v_dfree))); 405 (void)printf("%3d ", pgtok(deficit)); 406 #endif 407 (void)printf("%3lu ", rate(sum.v_scan - osum.v_scan)); 408 dkstats(); 409 (void)printf("%4lu %4lu %3lu ", 410 rate(sum.v_intr - osum.v_intr), 411 rate(sum.v_syscall - osum.v_syscall), 412 rate(sum.v_swtch - osum.v_swtch)); 413 cpustats(); 414 (void)printf("\n"); 415 (void)fflush(stdout); 416 if (reps >= 0 && --reps <= 0) 417 break; 418 osum = sum; 419 ostat = vm_stat; 420 uptime = interval; 421 /* 422 * We round upward to avoid losing low-frequency events 423 * (i.e., >= 1 per interval but < 1 per second). 424 */ 425 halfuptime = (uptime + 1) / 2; 426 (void)sleep(interval); 427 } 428 } 429 430 printhdr() 431 { 432 register int i; 433 434 (void)printf(" procs memory page%*s", 20, ""); 435 if (ndrives > 1) 436 (void)printf("disks %*s faults cpu\n", 437 ndrives * 3 - 6, ""); 438 else 439 (void)printf("%*s faults cpu\n", ndrives * 3, ""); 440 #ifndef NEWVM 441 (void)printf(" r b w avm fre re at pi po fr de sr "); 442 #else 443 (void)printf(" r b w avm fre flt re pi po fr sr "); 444 #endif 445 for (i = 0; i < dk_ndrive; i++) 446 if (dr_select[i]) 447 (void)printf("%c%c ", dr_name[i][0], 448 dr_name[i][strlen(dr_name[i]) - 1]); 449 (void)printf(" in sy cs us sy id\n"); 450 hdrcnt = winlines - 2; 451 } 452 453 /* 454 * Force a header to be prepended to the next output. 455 */ 456 void 457 needhdr() 458 { 459 460 hdrcnt = 1; 461 } 462 463 #ifdef notdef 464 void 465 dotimes() 466 { 467 u_int pgintime, rectime; 468 469 kread(X_REC, &rectime, sizeof(rectime)); 470 kread(X_PGIN, &pgintime, sizeof(pgintime)); 471 kread(X_SUM, &sum, sizeof(sum)); 472 (void)printf("%u reclaims, %u total time (usec)\n", 473 sum.v_pgrec, rectime); 474 (void)printf("average: %u usec / reclaim\n", rectime / sum.v_pgrec); 475 (void)printf("\n"); 476 (void)printf("%u page ins, %u total time (msec)\n", 477 sum.v_pgin, pgintime / 10); 478 (void)printf("average: %8.1f msec / page in\n", 479 pgintime / (sum.v_pgin * 10.0)); 480 } 481 #endif 482 483 pct(top, bot) 484 long top, bot; 485 { 486 if (bot == 0) 487 return(0); 488 return((top * 100) / bot); 489 } 490 491 #define PCT(top, bot) pct((long)(top), (long)(bot)) 492 493 #if defined(tahoe) 494 #include <machine/cpu.h> 495 #endif 496 497 void 498 dosum() 499 { 500 struct nchstats nchstats; 501 #ifndef NEWVM 502 struct xstats xstats; 503 #endif 504 long nchtotal; 505 #if defined(tahoe) 506 struct keystats keystats; 507 #endif 508 509 kread(X_SUM, &sum, sizeof(sum)); 510 #ifdef NEWVM 511 kread(X_VMSTAT, &vm_stat, sizeof(vm_stat)); 512 #else 513 (void)printf("%9u swap ins\n", sum.v_swpin); 514 (void)printf("%9u swap outs\n", sum.v_swpout); 515 (void)printf("%9u pages swapped in\n", sum.v_pswpin / CLSIZE); 516 (void)printf("%9u pages swapped out\n", sum.v_pswpout / CLSIZE); 517 (void)printf("%9u total address trans. faults taken\n", sum.v_faults); 518 (void)printf("%9u page ins\n", sum.v_pgin); 519 (void)printf("%9u page outs\n", sum.v_pgout); 520 (void)printf("%9u pages paged in\n", sum.v_pgpgin); 521 (void)printf("%9u pages paged out\n", sum.v_pgpgout); 522 (void)printf("%9u sequential process pages freed\n", sum.v_seqfree); 523 (void)printf("%9u total reclaims (%d%% fast)\n", sum.v_pgrec, 524 PCT(sum.v_fastpgrec, sum.v_pgrec)); 525 (void)printf("%9u reclaims from free list\n", sum.v_pgfrec); 526 (void)printf("%9u intransit blocking page faults\n", sum.v_intrans); 527 (void)printf("%9u zero fill pages created\n", sum.v_nzfod / CLSIZE); 528 (void)printf("%9u zero fill page faults\n", sum.v_zfod / CLSIZE); 529 (void)printf("%9u executable fill pages created\n", 530 sum.v_nexfod / CLSIZE); 531 (void)printf("%9u executable fill page faults\n", 532 sum.v_exfod / CLSIZE); 533 (void)printf("%9u swap text pages found in free list\n", 534 sum.v_xsfrec); 535 (void)printf("%9u inode text pages found in free list\n", 536 sum.v_xifrec); 537 (void)printf("%9u file fill pages created\n", sum.v_nvrfod / CLSIZE); 538 (void)printf("%9u file fill page faults\n", sum.v_vrfod / CLSIZE); 539 (void)printf("%9u pages examined by the clock daemon\n", sum.v_scan); 540 (void)printf("%9u revolutions of the clock hand\n", sum.v_rev); 541 (void)printf("%9u pages freed by the clock daemon\n", 542 sum.v_dfree / CLSIZE); 543 #endif 544 (void)printf("%9u cpu context switches\n", sum.v_swtch); 545 (void)printf("%9u device interrupts\n", sum.v_intr); 546 (void)printf("%9u software interrupts\n", sum.v_soft); 547 #ifdef vax 548 (void)printf("%9u pseudo-dma dz interrupts\n", sum.v_pdma); 549 #endif 550 (void)printf("%9u traps\n", sum.v_trap); 551 (void)printf("%9u system calls\n", sum.v_syscall); 552 #ifdef NEWVM 553 (void)printf("%9u bytes per page\n", vm_stat.pagesize); 554 (void)printf("%9u pages free\n", vm_stat.free_count); 555 (void)printf("%9u pages active\n", vm_stat.active_count); 556 (void)printf("%9u pages inactive\n", vm_stat.inactive_count); 557 (void)printf("%9u pages wired down\n", vm_stat.wire_count); 558 (void)printf("%9u zero-fill pages\n", vm_stat.zero_fill_count); 559 (void)printf("%9u pages reactivated\n", vm_stat.reactivations); 560 (void)printf("%9u pageins\n", vm_stat.pageins); 561 (void)printf("%9u pageouts\n", vm_stat.pageouts); 562 (void)printf("%9u VM faults\n", vm_stat.faults); 563 (void)printf("%9u copy-on-write faults\n", vm_stat.cow_faults); 564 (void)printf("%9u VM object cache lookups\n", vm_stat.lookups); 565 (void)printf("%9u VM object hits\n", vm_stat.hits); 566 #endif 567 568 kread(X_NCHSTATS, &nchstats, sizeof(nchstats)); 569 nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits + 570 nchstats.ncs_badhits + nchstats.ncs_falsehits + 571 nchstats.ncs_miss + nchstats.ncs_long; 572 (void)printf("%9ld total name lookups\n", nchtotal); 573 (void)printf( 574 "%9s cache hits (%d%% pos + %d%% neg) system %d%% per-process\n", 575 "", PCT(nchstats.ncs_goodhits, nchtotal), 576 PCT(nchstats.ncs_neghits, nchtotal), 577 PCT(nchstats.ncs_pass2, nchtotal)); 578 (void)printf("%9s deletions %d%%, falsehits %d%%, toolong %d%%\n", "", 579 PCT(nchstats.ncs_badhits, nchtotal), 580 PCT(nchstats.ncs_falsehits, nchtotal), 581 PCT(nchstats.ncs_long, nchtotal)); 582 #ifndef NEWVM 583 kread(X_XSTATS, &xstats, sizeof(xstats)); 584 (void)printf("%9lu total calls to xalloc (cache hits %d%%)\n", 585 xstats.alloc, PCT(xstats.alloc_cachehit, xstats.alloc)); 586 (void)printf("%9s sticky %lu flushed %lu unused %lu\n", "", 587 xstats.alloc_inuse, xstats.alloc_cacheflush, xstats.alloc_unused); 588 (void)printf("%9lu total calls to xfree", xstats.free); 589 (void)printf(" (sticky %lu cached %lu swapped %lu)\n", 590 xstats.free_inuse, xstats.free_cache, xstats.free_cacheswap); 591 #endif 592 #if defined(tahoe) 593 kread(X_CKEYSTATS, &keystats, sizeof(keystats)); 594 (void)printf("%9d %s (free %d%% norefs %d%% taken %d%% shared %d%%)\n", 595 keystats.ks_allocs, "code cache keys allocated", 596 PCT(keystats.ks_allocfree, keystats.ks_allocs), 597 PCT(keystats.ks_norefs, keystats.ks_allocs), 598 PCT(keystats.ks_taken, keystats.ks_allocs), 599 PCT(keystats.ks_shared, keystats.ks_allocs)); 600 kread(X_DKEYSTATS, &keystats, sizeof(keystats)); 601 (void)printf("%9d %s (free %d%% norefs %d%% taken %d%% shared %d%%)\n", 602 keystats.ks_allocs, "data cache keys allocated", 603 PCT(keystats.ks_allocfree, keystats.ks_allocs), 604 PCT(keystats.ks_norefs, keystats.ks_allocs), 605 PCT(keystats.ks_taken, keystats.ks_allocs), 606 PCT(keystats.ks_shared, keystats.ks_allocs)); 607 #endif 608 } 609 610 #ifdef notdef 611 void 612 doforkst() 613 { 614 struct forkstat fks; 615 616 kread(X_FORKSTAT, &fks, sizeof(struct forkstat)); 617 (void)printf("%d forks, %d pages, average %.2f\n", 618 fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork); 619 (void)printf("%d vforks, %d pages, average %.2f\n", 620 fks.cntvfork, fks.sizvfork, (double)fks.sizvfork / fks.cntvfork); 621 } 622 #endif 623 624 void 625 dkstats() 626 { 627 register int dn, state; 628 double etime; 629 long tmp; 630 631 for (dn = 0; dn < dk_ndrive; ++dn) { 632 tmp = cur.xfer[dn]; 633 cur.xfer[dn] -= last.xfer[dn]; 634 last.xfer[dn] = tmp; 635 } 636 etime = 0; 637 for (state = 0; state < CPUSTATES; ++state) { 638 tmp = cur.time[state]; 639 cur.time[state] -= last.time[state]; 640 last.time[state] = tmp; 641 etime += cur.time[state]; 642 } 643 if (etime == 0) 644 etime = 1; 645 etime /= hz; 646 for (dn = 0; dn < dk_ndrive; ++dn) { 647 if (!dr_select[dn]) 648 continue; 649 (void)printf("%2.0f ", cur.xfer[dn] / etime); 650 } 651 } 652 653 void 654 cpustats() 655 { 656 register int state; 657 double pct, total; 658 659 total = 0; 660 for (state = 0; state < CPUSTATES; ++state) 661 total += cur.time[state]; 662 if (total) 663 pct = 100 / total; 664 else 665 pct = 0; 666 (void)printf("%2.0f ", /* user + nice */ 667 (cur.time[0] + cur.time[1]) * pct); 668 (void)printf("%2.0f ", cur.time[2] * pct); /* system */ 669 (void)printf("%2.0f", cur.time[3] * pct); /* idle */ 670 } 671 672 void 673 dointr() 674 { 675 register long *intrcnt, inttotal, uptime; 676 register int nintr, inamlen; 677 register char *intrname; 678 679 uptime = getuptime(); 680 nintr = nl[X_EINTRCNT].n_value - nl[X_INTRCNT].n_value; 681 inamlen = nl[X_EINTRNAMES].n_value - nl[X_INTRNAMES].n_value; 682 intrcnt = malloc((size_t)nintr); 683 intrname = malloc((size_t)inamlen); 684 if (intrcnt == NULL || intrname == NULL) { 685 (void)fprintf(stderr, "vmstat: %s.\n", strerror(errno)); 686 exit(1); 687 } 688 kread(X_INTRCNT, intrcnt, (size_t)nintr); 689 kread(X_INTRNAMES, intrname, (size_t)inamlen); 690 (void)printf("interrupt total rate\n"); 691 inttotal = 0; 692 nintr /= sizeof(long); 693 while (--nintr >= 0) { 694 if (*intrcnt) 695 (void)printf("%-12s %8ld %8ld\n", intrname, 696 *intrcnt, *intrcnt / uptime); 697 intrname += strlen(intrname) + 1; 698 inttotal += *intrcnt++; 699 } 700 (void)printf("Total %8ld %8ld\n", inttotal, inttotal / uptime); 701 } 702 703 /* 704 * These names are defined in <sys/malloc.h>. 705 */ 706 char *kmemnames[] = INITKMEMNAMES; 707 708 void 709 domem() 710 { 711 register struct kmembuckets *kp; 712 register struct kmemstats *ks; 713 register int i; 714 int size; 715 long totuse = 0, totfree = 0, totreq = 0; 716 struct kmemstats kmemstats[M_LAST]; 717 struct kmembuckets buckets[MINBUCKET + 16]; 718 719 kread(X_KMEMBUCKETS, buckets, sizeof(buckets)); 720 (void)printf("Memory statistics by bucket size\n"); 721 (void)printf( 722 " Size In Use Free Requests HighWater Couldfree\n"); 723 for (i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16; i++, kp++) { 724 if (kp->kb_calls == 0) 725 continue; 726 size = 1 << i; 727 (void)printf("%8d %8ld %6ld %10ld %7ld %10ld\n", size, 728 kp->kb_total - kp->kb_totalfree, 729 kp->kb_totalfree, kp->kb_calls, 730 kp->kb_highwat, kp->kb_couldfree); 731 totfree += size * kp->kb_totalfree; 732 totuse += size * (kp->kb_total - kp->kb_totalfree); 733 } 734 735 kread(X_KMEMSTAT, kmemstats, sizeof(kmemstats)); 736 (void)printf("\nMemory statistics by type\n"); 737 (void)printf( 738 " Type In Use MemUse HighUse Limit Requests TypeLimit KernLimit\n"); 739 for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) { 740 if (ks->ks_calls == 0) 741 continue; 742 (void)printf("%10s %6ld %7ldK %8ldK %5ldK %8ld %6u %9u\n", 743 kmemnames[i] ? kmemnames[i] : "undefined", 744 ks->ks_inuse, (ks->ks_memuse + 1023) / 1024, 745 (ks->ks_maxused + 1023) / 1024, 746 (ks->ks_limit + 1023) / 1024, ks->ks_calls, 747 ks->ks_limblocks, ks->ks_mapblocks); 748 totuse += ks->ks_memuse; 749 totreq += ks->ks_calls; 750 } 751 (void)printf("\nMemory Totals: In Use Free Requests\n"); 752 (void)printf(" %7ldK %6ldK %8ld\n", 753 (totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq); 754 } 755 756 /* 757 * kread reads something from the kernel, given its nlist index. 758 */ 759 void 760 kread(nlx, addr, size) 761 int nlx; 762 void *addr; 763 size_t size; 764 { 765 char *sym; 766 767 if (nl[nlx].n_type == 0 || nl[nlx].n_value == 0) { 768 sym = nl[nlx].n_name; 769 if (*sym == '_') 770 ++sym; 771 (void)fprintf(stderr, 772 "vmstat: %s: symbol %s not defined\n", vmunix, sym); 773 exit(1); 774 } 775 if (kvm_read((void *)nl[nlx].n_value, addr, size) != size) { 776 sym = nl[nlx].n_name; 777 if (*sym == '_') 778 ++sym; 779 (void)fprintf(stderr, "vmstat: %s: %s\n", sym, kvm_geterr()); 780 exit(1); 781 } 782 } 783 784 void 785 usage() 786 { 787 (void)fprintf(stderr, 788 #ifndef NEWVM 789 "usage: vmstat [-fimst] [-c count] [-M core] \ 790 [-N system] [-w wait] [disks]\n"); 791 #else 792 "usage: vmstat [-ims] [-c count] [-M core] \ 793 [-N system] [-w wait] [disks]\n"); 794 #endif 795 exit(1); 796 } 797