1 /* 2 * Copyright (c) 1980, 1986, 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 8 #ifndef lint 9 static char copyright[] = 10 "@(#) Copyright (c) 1980, 1986, 1991, 1993\n\ 11 The Regents of the University of California. All rights reserved.\n"; 12 #endif /* not lint */ 13 14 #ifndef lint 15 static char sccsid[] = "@(#)vmstat.c 8.1 (Berkeley) 06/06/93"; 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/sysctl.h> 30 #include <vm/vm.h> 31 #include <time.h> 32 #include <nlist.h> 33 #include <kvm.h> 34 #include <errno.h> 35 #include <unistd.h> 36 #include <stdio.h> 37 #include <ctype.h> 38 #include <stdlib.h> 39 #include <string.h> 40 #include <paths.h> 41 #include <limits.h> 42 43 #define NEWVM /* XXX till old has been updated or purged */ 44 struct nlist namelist[] = { 45 #define X_CPTIME 0 46 { "_cp_time" }, 47 #define X_DK_NDRIVE 1 48 { "_dk_ndrive" }, 49 #define X_SUM 2 50 { "_cnt" }, 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_STATHZ 6 58 { "_stathz" }, 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_KMEMSTAT 12 70 { "_kmemstats" }, 71 #define X_KMEMBUCKETS 13 72 { "_bucket" }, 73 #ifdef notdef 74 #define X_DEFICIT 14 75 { "_deficit" }, 76 #define X_FORKSTAT 15 77 { "_forkstat" }, 78 #define X_REC 16 79 { "_rectime" }, 80 #define X_PGIN 17 81 { "_pgintime" }, 82 #define X_XSTATS 18 83 { "_xstats" }, 84 #define X_END 18 85 #else 86 #define X_END 14 87 #endif 88 #if defined(hp300) || defined(luna68k) 89 #define X_HPDINIT (X_END) 90 { "_hp_dinit" }, 91 #endif 92 #ifdef mips 93 #define X_SCSI_DINIT (X_END) 94 { "_scsi_dinit" }, 95 #endif 96 #ifdef tahoe 97 #define X_VBDINIT (X_END) 98 { "_vbdinit" }, 99 #define X_CKEYSTATS (X_END+1) 100 { "_ckeystats" }, 101 #define X_DKEYSTATS (X_END+2) 102 { "_dkeystats" }, 103 #endif 104 #ifdef vax 105 #define X_MBDINIT (X_END) 106 { "_mbdinit" }, 107 #define X_UBDINIT (X_END+1) 108 { "_ubdinit" }, 109 #endif 110 { "" }, 111 }; 112 113 struct _disk { 114 long time[CPUSTATES]; 115 long *xfer; 116 } cur, last; 117 118 struct vmmeter sum, osum; 119 char **dr_name; 120 int *dr_select, dk_ndrive, ndrives; 121 122 int winlines = 20; 123 124 kvm_t *kd; 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 *memf, *nlistf; 151 char errbuf[_POSIX2_LINE_MAX]; 152 153 memf = nlistf = NULL; 154 interval = reps = todo = 0; 155 while ((c = getopt(argc, argv, "c:fiM:mN:stw:")) != EOF) { 156 switch (c) { 157 case 'c': 158 reps = atoi(optarg); 159 break; 160 #ifndef notdef 161 case 'f': 162 todo |= FORKSTAT; 163 break; 164 #endif 165 case 'i': 166 todo |= INTRSTAT; 167 break; 168 case 'M': 169 memf = optarg; 170 break; 171 case 'm': 172 todo |= MEMSTAT; 173 break; 174 case 'N': 175 nlistf = optarg; 176 break; 177 case 's': 178 todo |= SUMSTAT; 179 break; 180 #ifndef notdef 181 case 't': 182 todo |= TIMESTAT; 183 break; 184 #endif 185 case 'w': 186 interval = atoi(optarg); 187 break; 188 case '?': 189 default: 190 usage(); 191 } 192 } 193 argc -= optind; 194 argv += optind; 195 196 if (todo == 0) 197 todo = VMSTAT; 198 199 /* 200 * Discard setgid privileges if not the running kernel so that bad 201 * guys can't print interesting stuff from kernel memory. 202 */ 203 if (nlistf != NULL || memf != NULL) 204 setgid(getgid()); 205 206 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf); 207 if (kd == 0) { 208 (void)fprintf(stderr, 209 "vmstat: kvm_openfiles: %s\n", errbuf); 210 exit(1); 211 } 212 213 if ((c = kvm_nlist(kd, namelist)) != 0) { 214 if (c > 0) { 215 (void)fprintf(stderr, 216 "vmstat: undefined symbols:"); 217 for (c = 0; 218 c < sizeof(namelist)/sizeof(namelist[0]); c++) 219 if (namelist[c].n_type == 0) 220 fprintf(stderr, " %s", 221 namelist[c].n_name); 222 (void)fputc('\n', stderr); 223 } else 224 (void)fprintf(stderr, "vmstat: kvm_nlist: %s\n", 225 kvm_geterr(kd)); 226 exit(1); 227 } 228 229 if (todo & VMSTAT) { 230 char **getdrivedata(); 231 struct winsize winsize; 232 233 argv = getdrivedata(argv); 234 winsize.ws_row = 0; 235 (void) ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&winsize); 236 if (winsize.ws_row > 0) 237 winlines = winsize.ws_row; 238 239 } 240 241 #define BACKWARD_COMPATIBILITY 242 #ifdef BACKWARD_COMPATIBILITY 243 if (*argv) { 244 interval = atoi(*argv); 245 if (*++argv) 246 reps = atoi(*argv); 247 } 248 #endif 249 250 if (interval) { 251 if (!reps) 252 reps = -1; 253 } else if (reps) 254 interval = 1; 255 256 #ifdef notdef 257 if (todo & FORKSTAT) 258 doforkst(); 259 #endif 260 if (todo & MEMSTAT) 261 domem(); 262 if (todo & SUMSTAT) 263 dosum(); 264 #ifdef notdef 265 if (todo & TIMESTAT) 266 dotimes(); 267 #endif 268 if (todo & INTRSTAT) 269 dointr(); 270 if (todo & VMSTAT) 271 dovmstat(interval, reps); 272 exit(0); 273 } 274 275 char ** 276 getdrivedata(argv) 277 char **argv; 278 { 279 register int i; 280 register char **cp; 281 char buf[30]; 282 283 kread(X_DK_NDRIVE, &dk_ndrive, sizeof(dk_ndrive)); 284 if (dk_ndrive <= 0) { 285 (void)fprintf(stderr, "vmstat: dk_ndrive %d\n", dk_ndrive); 286 exit(1); 287 } 288 dr_select = calloc((size_t)dk_ndrive, sizeof(int)); 289 dr_name = calloc((size_t)dk_ndrive, sizeof(char *)); 290 for (i = 0; i < dk_ndrive; i++) 291 dr_name[i] = NULL; 292 cur.xfer = calloc((size_t)dk_ndrive, sizeof(long)); 293 last.xfer = calloc((size_t)dk_ndrive, sizeof(long)); 294 if (!read_names()) 295 exit (1); 296 for (i = 0; i < dk_ndrive; i++) 297 if (dr_name[i] == NULL) { 298 (void)sprintf(buf, "??%d", i); 299 dr_name[i] = strdup(buf); 300 } 301 302 /* 303 * Choose drives to be displayed. Priority goes to (in order) drives 304 * supplied as arguments, default drives. If everything isn't filled 305 * in and there are drives not taken care of, display the first few 306 * that fit. 307 */ 308 #define BACKWARD_COMPATIBILITY 309 for (ndrives = 0; *argv; ++argv) { 310 #ifdef BACKWARD_COMPATIBILITY 311 if (isdigit(**argv)) 312 break; 313 #endif 314 for (i = 0; i < dk_ndrive; i++) { 315 if (strcmp(dr_name[i], *argv)) 316 continue; 317 dr_select[i] = 1; 318 ++ndrives; 319 break; 320 } 321 } 322 for (i = 0; i < dk_ndrive && ndrives < 4; i++) { 323 if (dr_select[i]) 324 continue; 325 for (cp = defdrives; *cp; cp++) 326 if (strcmp(dr_name[i], *cp) == 0) { 327 dr_select[i] = 1; 328 ++ndrives; 329 break; 330 } 331 } 332 for (i = 0; i < dk_ndrive && ndrives < 4; i++) { 333 if (dr_select[i]) 334 continue; 335 dr_select[i] = 1; 336 ++ndrives; 337 } 338 return(argv); 339 } 340 341 long 342 getuptime() 343 { 344 static time_t now, boottime; 345 time_t uptime; 346 347 if (boottime == 0) 348 kread(X_BOOTTIME, &boottime, sizeof(boottime)); 349 (void)time(&now); 350 uptime = now - boottime; 351 if (uptime <= 0 || uptime > 60*60*24*365*10) { 352 (void)fprintf(stderr, 353 "vmstat: time makes no sense; namelist must be wrong.\n"); 354 exit(1); 355 } 356 return(uptime); 357 } 358 359 int hz, hdrcnt; 360 361 void 362 dovmstat(interval, reps) 363 u_int interval; 364 int reps; 365 { 366 struct vmtotal total; 367 time_t uptime, halfuptime; 368 void needhdr(); 369 int mib[2], size; 370 371 uptime = getuptime(); 372 halfuptime = uptime / 2; 373 (void)signal(SIGCONT, needhdr); 374 375 if (namelist[X_STATHZ].n_type != 0 && namelist[X_STATHZ].n_value != 0) 376 kread(X_STATHZ, &hz, sizeof(hz)); 377 if (!hz) 378 kread(X_HZ, &hz, sizeof(hz)); 379 380 for (hdrcnt = 1;;) { 381 if (!--hdrcnt) 382 printhdr(); 383 kread(X_CPTIME, cur.time, sizeof(cur.time)); 384 kread(X_DKXFER, cur.xfer, sizeof(*cur.xfer) * dk_ndrive); 385 kread(X_SUM, &sum, sizeof(sum)); 386 size = sizeof(total); 387 mib[0] = CTL_VM; 388 mib[1] = VM_METER; 389 if (sysctl(mib, 2, &total, &size, NULL, 0) < 0) { 390 printf("Can't get kerninfo: %s\n", strerror(errno)); 391 bzero(&total, sizeof(total)); 392 } 393 (void)printf("%2d%2d%2d", 394 total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw); 395 #define pgtok(a) ((a) * sum.v_page_size >> 10) 396 #define rate(x) (((x) + halfuptime) / uptime) /* round */ 397 (void)printf("%6ld%6ld ", 398 pgtok(total.t_avm), pgtok(total.t_free)); 399 #ifdef NEWVM 400 (void)printf("%4lu ", rate(sum.v_faults - osum.v_faults)); 401 (void)printf("%3lu ", 402 rate(sum.v_reactivated - osum.v_reactivated)); 403 (void)printf("%3lu ", rate(sum.v_pageins - osum.v_pageins)); 404 (void)printf("%3lu %3lu ", 405 rate(sum.v_pageouts - osum.v_pageouts), 0); 406 #else 407 (void)printf("%3lu %2lu ", 408 rate(sum.v_pgrec - (sum.v_xsfrec+sum.v_xifrec) - 409 (osum.v_pgrec - (osum.v_xsfrec+osum.v_xifrec))), 410 rate(sum.v_xsfrec + sum.v_xifrec - 411 osum.v_xsfrec - osum.v_xifrec)); 412 (void)printf("%3lu ", 413 rate(pgtok(sum.v_pgpgin - osum.v_pgpgin))); 414 (void)printf("%3lu %3lu ", 415 rate(pgtok(sum.v_pgpgout - osum.v_pgpgout)), 416 rate(pgtok(sum.v_dfree - osum.v_dfree))); 417 (void)printf("%3d ", pgtok(deficit)); 418 #endif 419 (void)printf("%3lu ", rate(sum.v_scan - osum.v_scan)); 420 dkstats(); 421 (void)printf("%4lu %4lu %3lu ", 422 rate(sum.v_intr - osum.v_intr), 423 rate(sum.v_syscall - osum.v_syscall), 424 rate(sum.v_swtch - osum.v_swtch)); 425 cpustats(); 426 (void)printf("\n"); 427 (void)fflush(stdout); 428 if (reps >= 0 && --reps <= 0) 429 break; 430 osum = sum; 431 uptime = interval; 432 /* 433 * We round upward to avoid losing low-frequency events 434 * (i.e., >= 1 per interval but < 1 per second). 435 */ 436 halfuptime = (uptime + 1) / 2; 437 (void)sleep(interval); 438 } 439 } 440 441 printhdr() 442 { 443 register int i; 444 445 (void)printf(" procs memory page%*s", 20, ""); 446 if (ndrives > 1) 447 (void)printf("disks %*s faults cpu\n", 448 ndrives * 3 - 6, ""); 449 else 450 (void)printf("%*s faults cpu\n", ndrives * 3, ""); 451 #ifndef NEWVM 452 (void)printf(" r b w avm fre re at pi po fr de sr "); 453 #else 454 (void)printf(" r b w avm fre flt re pi po fr sr "); 455 #endif 456 for (i = 0; i < dk_ndrive; i++) 457 if (dr_select[i]) 458 (void)printf("%c%c ", dr_name[i][0], 459 dr_name[i][strlen(dr_name[i]) - 1]); 460 (void)printf(" in sy cs us sy id\n"); 461 hdrcnt = winlines - 2; 462 } 463 464 /* 465 * Force a header to be prepended to the next output. 466 */ 467 void 468 needhdr() 469 { 470 471 hdrcnt = 1; 472 } 473 474 #ifdef notdef 475 void 476 dotimes() 477 { 478 u_int pgintime, rectime; 479 480 kread(X_REC, &rectime, sizeof(rectime)); 481 kread(X_PGIN, &pgintime, sizeof(pgintime)); 482 kread(X_SUM, &sum, sizeof(sum)); 483 (void)printf("%u reclaims, %u total time (usec)\n", 484 sum.v_pgrec, rectime); 485 (void)printf("average: %u usec / reclaim\n", rectime / sum.v_pgrec); 486 (void)printf("\n"); 487 (void)printf("%u page ins, %u total time (msec)\n", 488 sum.v_pgin, pgintime / 10); 489 (void)printf("average: %8.1f msec / page in\n", 490 pgintime / (sum.v_pgin * 10.0)); 491 } 492 #endif 493 494 pct(top, bot) 495 long top, bot; 496 { 497 long ans; 498 499 if (bot == 0) 500 return(0); 501 ans = (quad_t)top * 100 / bot; 502 return (ans); 503 } 504 505 #define PCT(top, bot) pct((long)(top), (long)(bot)) 506 507 #if defined(tahoe) 508 #include <machine/cpu.h> 509 #endif 510 511 void 512 dosum() 513 { 514 struct nchstats nchstats; 515 #ifndef NEWVM 516 struct xstats xstats; 517 #endif 518 long nchtotal; 519 #if defined(tahoe) 520 struct keystats keystats; 521 #endif 522 523 kread(X_SUM, &sum, sizeof(sum)); 524 (void)printf("%9u cpu context switches\n", sum.v_swtch); 525 (void)printf("%9u device interrupts\n", sum.v_intr); 526 (void)printf("%9u software interrupts\n", sum.v_soft); 527 #ifdef vax 528 (void)printf("%9u pseudo-dma dz interrupts\n", sum.v_pdma); 529 #endif 530 (void)printf("%9u traps\n", sum.v_trap); 531 (void)printf("%9u system calls\n", sum.v_syscall); 532 (void)printf("%9u total faults taken\n", sum.v_faults); 533 (void)printf("%9u swap ins\n", sum.v_swpin); 534 (void)printf("%9u swap outs\n", sum.v_swpout); 535 (void)printf("%9u pages swapped in\n", sum.v_pswpin / CLSIZE); 536 (void)printf("%9u pages swapped out\n", sum.v_pswpout / CLSIZE); 537 (void)printf("%9u page ins\n", sum.v_pageins); 538 (void)printf("%9u page outs\n", sum.v_pageouts); 539 (void)printf("%9u pages paged in\n", sum.v_pgpgin); 540 (void)printf("%9u pages paged out\n", sum.v_pgpgout); 541 (void)printf("%9u pages reactivated\n", sum.v_reactivated); 542 (void)printf("%9u intransit blocking page faults\n", sum.v_intrans); 543 (void)printf("%9u zero fill pages created\n", sum.v_nzfod / CLSIZE); 544 (void)printf("%9u zero fill page faults\n", sum.v_zfod / CLSIZE); 545 (void)printf("%9u pages examined by the clock daemon\n", sum.v_scan); 546 (void)printf("%9u revolutions of the clock hand\n", sum.v_rev); 547 #ifdef NEWVM 548 (void)printf("%9u VM object cache lookups\n", sum.v_lookups); 549 (void)printf("%9u VM object hits\n", sum.v_hits); 550 (void)printf("%9u total VM faults taken\n", sum.v_vm_faults); 551 (void)printf("%9u copy-on-write faults\n", sum.v_cow_faults); 552 (void)printf("%9u pages freed by daemon\n", sum.v_dfree); 553 (void)printf("%9u pages freed by exiting processes\n", sum.v_pfree); 554 (void)printf("%9u pages free\n", sum.v_free_count); 555 (void)printf("%9u pages wired down\n", sum.v_wire_count); 556 (void)printf("%9u pages active\n", sum.v_active_count); 557 (void)printf("%9u pages inactive\n", sum.v_inactive_count); 558 (void)printf("%9u bytes per page\n", sum.v_page_size); 559 #else 560 (void)printf("%9u sequential process pages freed\n", sum.v_seqfree); 561 (void)printf("%9u total reclaims (%d%% fast)\n", sum.v_pgrec, 562 PCT(sum.v_fastpgrec, sum.v_pgrec)); 563 (void)printf("%9u reclaims from free list\n", sum.v_pgfrec); 564 (void)printf("%9u executable fill pages created\n", 565 sum.v_nexfod / CLSIZE); 566 (void)printf("%9u executable fill page faults\n", 567 sum.v_exfod / CLSIZE); 568 (void)printf("%9u swap text pages found in free list\n", 569 sum.v_xsfrec); 570 (void)printf("%9u inode text pages found in free list\n", 571 sum.v_xifrec); 572 (void)printf("%9u file fill pages created\n", sum.v_nvrfod / CLSIZE); 573 (void)printf("%9u file fill page faults\n", sum.v_vrfod / CLSIZE); 574 (void)printf("%9u pages freed by the clock daemon\n", 575 sum.v_dfree / CLSIZE); 576 #endif 577 kread(X_NCHSTATS, &nchstats, sizeof(nchstats)); 578 nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits + 579 nchstats.ncs_badhits + nchstats.ncs_falsehits + 580 nchstats.ncs_miss + nchstats.ncs_long; 581 (void)printf("%9ld total name lookups\n", nchtotal); 582 (void)printf( 583 "%9s cache hits (%d%% pos + %d%% neg) system %d%% per-process\n", 584 "", PCT(nchstats.ncs_goodhits, nchtotal), 585 PCT(nchstats.ncs_neghits, nchtotal), 586 PCT(nchstats.ncs_pass2, nchtotal)); 587 (void)printf("%9s deletions %d%%, falsehits %d%%, toolong %d%%\n", "", 588 PCT(nchstats.ncs_badhits, nchtotal), 589 PCT(nchstats.ncs_falsehits, nchtotal), 590 PCT(nchstats.ncs_long, nchtotal)); 591 #ifndef NEWVM 592 kread(X_XSTATS, &xstats, sizeof(xstats)); 593 (void)printf("%9lu total calls to xalloc (cache hits %d%%)\n", 594 xstats.alloc, PCT(xstats.alloc_cachehit, xstats.alloc)); 595 (void)printf("%9s sticky %lu flushed %lu unused %lu\n", "", 596 xstats.alloc_inuse, xstats.alloc_cacheflush, xstats.alloc_unused); 597 (void)printf("%9lu total calls to xfree", xstats.free); 598 (void)printf(" (sticky %lu cached %lu swapped %lu)\n", 599 xstats.free_inuse, xstats.free_cache, xstats.free_cacheswap); 600 #endif 601 #if defined(tahoe) 602 kread(X_CKEYSTATS, &keystats, sizeof(keystats)); 603 (void)printf("%9d %s (free %d%% norefs %d%% taken %d%% shared %d%%)\n", 604 keystats.ks_allocs, "code cache keys allocated", 605 PCT(keystats.ks_allocfree, keystats.ks_allocs), 606 PCT(keystats.ks_norefs, keystats.ks_allocs), 607 PCT(keystats.ks_taken, keystats.ks_allocs), 608 PCT(keystats.ks_shared, keystats.ks_allocs)); 609 kread(X_DKEYSTATS, &keystats, sizeof(keystats)); 610 (void)printf("%9d %s (free %d%% norefs %d%% taken %d%% shared %d%%)\n", 611 keystats.ks_allocs, "data cache keys allocated", 612 PCT(keystats.ks_allocfree, keystats.ks_allocs), 613 PCT(keystats.ks_norefs, keystats.ks_allocs), 614 PCT(keystats.ks_taken, keystats.ks_allocs), 615 PCT(keystats.ks_shared, keystats.ks_allocs)); 616 #endif 617 } 618 619 #ifdef notdef 620 void 621 doforkst() 622 { 623 struct forkstat fks; 624 625 kread(X_FORKSTAT, &fks, sizeof(struct forkstat)); 626 (void)printf("%d forks, %d pages, average %.2f\n", 627 fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork); 628 (void)printf("%d vforks, %d pages, average %.2f\n", 629 fks.cntvfork, fks.sizvfork, (double)fks.sizvfork / fks.cntvfork); 630 } 631 #endif 632 633 void 634 dkstats() 635 { 636 register int dn, state; 637 double etime; 638 long tmp; 639 640 for (dn = 0; dn < dk_ndrive; ++dn) { 641 tmp = cur.xfer[dn]; 642 cur.xfer[dn] -= last.xfer[dn]; 643 last.xfer[dn] = tmp; 644 } 645 etime = 0; 646 for (state = 0; state < CPUSTATES; ++state) { 647 tmp = cur.time[state]; 648 cur.time[state] -= last.time[state]; 649 last.time[state] = tmp; 650 etime += cur.time[state]; 651 } 652 if (etime == 0) 653 etime = 1; 654 etime /= hz; 655 for (dn = 0; dn < dk_ndrive; ++dn) { 656 if (!dr_select[dn]) 657 continue; 658 (void)printf("%2.0f ", cur.xfer[dn] / etime); 659 } 660 } 661 662 void 663 cpustats() 664 { 665 register int state; 666 double pct, total; 667 668 total = 0; 669 for (state = 0; state < CPUSTATES; ++state) 670 total += cur.time[state]; 671 if (total) 672 pct = 100 / total; 673 else 674 pct = 0; 675 (void)printf("%2.0f ", (cur.time[CP_USER] + cur.time[CP_NICE]) * pct); 676 (void)printf("%2.0f ", (cur.time[CP_SYS] + cur.time[CP_INTR]) * pct); 677 (void)printf("%2.0f", cur.time[CP_IDLE] * pct); 678 } 679 680 void 681 dointr() 682 { 683 register long *intrcnt, inttotal, uptime; 684 register int nintr, inamlen; 685 register char *intrname; 686 687 uptime = getuptime(); 688 nintr = namelist[X_EINTRCNT].n_value - namelist[X_INTRCNT].n_value; 689 inamlen = 690 namelist[X_EINTRNAMES].n_value - namelist[X_INTRNAMES].n_value; 691 intrcnt = malloc((size_t)nintr); 692 intrname = malloc((size_t)inamlen); 693 if (intrcnt == NULL || intrname == NULL) { 694 (void)fprintf(stderr, "vmstat: %s.\n", strerror(errno)); 695 exit(1); 696 } 697 kread(X_INTRCNT, intrcnt, (size_t)nintr); 698 kread(X_INTRNAMES, intrname, (size_t)inamlen); 699 (void)printf("interrupt total rate\n"); 700 inttotal = 0; 701 nintr /= sizeof(long); 702 while (--nintr >= 0) { 703 if (*intrcnt) 704 (void)printf("%-12s %8ld %8ld\n", intrname, 705 *intrcnt, *intrcnt / uptime); 706 intrname += strlen(intrname) + 1; 707 inttotal += *intrcnt++; 708 } 709 (void)printf("Total %8ld %8ld\n", inttotal, inttotal / uptime); 710 } 711 712 /* 713 * These names are defined in <sys/malloc.h>. 714 */ 715 char *kmemnames[] = INITKMEMNAMES; 716 717 void 718 domem() 719 { 720 register struct kmembuckets *kp; 721 register struct kmemstats *ks; 722 register int i, j; 723 int len, size, first; 724 long totuse = 0, totfree = 0, totreq = 0; 725 char *name; 726 struct kmemstats kmemstats[M_LAST]; 727 struct kmembuckets buckets[MINBUCKET + 16]; 728 729 kread(X_KMEMBUCKETS, buckets, sizeof(buckets)); 730 (void)printf("Memory statistics by bucket size\n"); 731 (void)printf( 732 " Size In Use Free Requests HighWater Couldfree\n"); 733 for (i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16; i++, kp++) { 734 if (kp->kb_calls == 0) 735 continue; 736 size = 1 << i; 737 (void)printf("%8d %8ld %6ld %10ld %7ld %10ld\n", size, 738 kp->kb_total - kp->kb_totalfree, 739 kp->kb_totalfree, kp->kb_calls, 740 kp->kb_highwat, kp->kb_couldfree); 741 totfree += size * kp->kb_totalfree; 742 } 743 744 kread(X_KMEMSTAT, kmemstats, sizeof(kmemstats)); 745 (void)printf("\nMemory usage type by bucket size\n"); 746 (void)printf(" Size Type(s)\n"); 747 kp = &buckets[MINBUCKET]; 748 for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) { 749 if (kp->kb_calls == 0) 750 continue; 751 first = 1; 752 len = 8; 753 for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) { 754 if (ks->ks_calls == 0) 755 continue; 756 if ((ks->ks_size & j) == 0) 757 continue; 758 name = kmemnames[i] ? kmemnames[i] : "undefined"; 759 len += 2 + strlen(name); 760 if (first) 761 printf("%8d %s", j, name); 762 else 763 printf(","); 764 if (len >= 80) { 765 printf("\n\t "); 766 len = 10 + strlen(name); 767 } 768 if (!first) 769 printf(" %s", name); 770 first = 0; 771 } 772 printf("\n"); 773 } 774 775 (void)printf( 776 "\nMemory statistics by type Type Kern\n"); 777 (void)printf( 778 " Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)\n"); 779 for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) { 780 if (ks->ks_calls == 0) 781 continue; 782 (void)printf("%11s%6ld%6ldK%7ldK%6ldK%9ld%5u%6u", 783 kmemnames[i] ? kmemnames[i] : "undefined", 784 ks->ks_inuse, (ks->ks_memuse + 1023) / 1024, 785 (ks->ks_maxused + 1023) / 1024, 786 (ks->ks_limit + 1023) / 1024, ks->ks_calls, 787 ks->ks_limblocks, ks->ks_mapblocks); 788 first = 1; 789 for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) { 790 if ((ks->ks_size & j) == 0) 791 continue; 792 if (first) 793 printf(" %d", j); 794 else 795 printf(",%d", j); 796 first = 0; 797 } 798 printf("\n"); 799 totuse += ks->ks_memuse; 800 totreq += ks->ks_calls; 801 } 802 (void)printf("\nMemory Totals: In Use Free Requests\n"); 803 (void)printf(" %7ldK %6ldK %8ld\n", 804 (totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq); 805 } 806 807 /* 808 * kread reads something from the kernel, given its nlist index. 809 */ 810 void 811 kread(nlx, addr, size) 812 int nlx; 813 void *addr; 814 size_t size; 815 { 816 char *sym; 817 818 if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) { 819 sym = namelist[nlx].n_name; 820 if (*sym == '_') 821 ++sym; 822 (void)fprintf(stderr, 823 "vmstat: symbol %s not defined\n", sym); 824 exit(1); 825 } 826 if (kvm_read(kd, namelist[nlx].n_value, addr, size) != size) { 827 sym = namelist[nlx].n_name; 828 if (*sym == '_') 829 ++sym; 830 (void)fprintf(stderr, "vmstat: %s: %s\n", sym, kvm_geterr(kd)); 831 exit(1); 832 } 833 } 834 835 void 836 usage() 837 { 838 (void)fprintf(stderr, 839 #ifndef NEWVM 840 "usage: vmstat [-fimst] [-c count] [-M core] \ 841 [-N system] [-w wait] [disks]\n"); 842 #else 843 "usage: vmstat [-ims] [-c count] [-M core] \ 844 [-N system] [-w wait] [disks]\n"); 845 #endif 846 exit(1); 847 } 848