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 8.2 (Berkeley) 03/01/95"; 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 (void)printf("%9u target inactive pages\n", sum.v_inactive_target); 560 (void)printf("%9u target free pages\n", sum.v_free_target); 561 (void)printf("%9u minimum free pages\n", sum.v_free_min); 562 #else 563 (void)printf("%9u sequential process pages freed\n", sum.v_seqfree); 564 (void)printf("%9u total reclaims (%d%% fast)\n", sum.v_pgrec, 565 PCT(sum.v_fastpgrec, sum.v_pgrec)); 566 (void)printf("%9u reclaims from free list\n", sum.v_pgfrec); 567 (void)printf("%9u executable fill pages created\n", 568 sum.v_nexfod / CLSIZE); 569 (void)printf("%9u executable fill page faults\n", 570 sum.v_exfod / CLSIZE); 571 (void)printf("%9u swap text pages found in free list\n", 572 sum.v_xsfrec); 573 (void)printf("%9u inode text pages found in free list\n", 574 sum.v_xifrec); 575 (void)printf("%9u file fill pages created\n", sum.v_nvrfod / CLSIZE); 576 (void)printf("%9u file fill page faults\n", sum.v_vrfod / CLSIZE); 577 (void)printf("%9u pages freed by the clock daemon\n", 578 sum.v_dfree / CLSIZE); 579 #endif 580 kread(X_NCHSTATS, &nchstats, sizeof(nchstats)); 581 nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits + 582 nchstats.ncs_badhits + nchstats.ncs_falsehits + 583 nchstats.ncs_miss + nchstats.ncs_long; 584 (void)printf("%9ld total name lookups\n", nchtotal); 585 (void)printf( 586 "%9s cache hits (%d%% pos + %d%% neg) system %d%% per-process\n", 587 "", PCT(nchstats.ncs_goodhits, nchtotal), 588 PCT(nchstats.ncs_neghits, nchtotal), 589 PCT(nchstats.ncs_pass2, nchtotal)); 590 (void)printf("%9s deletions %d%%, falsehits %d%%, toolong %d%%\n", "", 591 PCT(nchstats.ncs_badhits, nchtotal), 592 PCT(nchstats.ncs_falsehits, nchtotal), 593 PCT(nchstats.ncs_long, nchtotal)); 594 #ifndef NEWVM 595 kread(X_XSTATS, &xstats, sizeof(xstats)); 596 (void)printf("%9lu total calls to xalloc (cache hits %d%%)\n", 597 xstats.alloc, PCT(xstats.alloc_cachehit, xstats.alloc)); 598 (void)printf("%9s sticky %lu flushed %lu unused %lu\n", "", 599 xstats.alloc_inuse, xstats.alloc_cacheflush, xstats.alloc_unused); 600 (void)printf("%9lu total calls to xfree", xstats.free); 601 (void)printf(" (sticky %lu cached %lu swapped %lu)\n", 602 xstats.free_inuse, xstats.free_cache, xstats.free_cacheswap); 603 #endif 604 #if defined(tahoe) 605 kread(X_CKEYSTATS, &keystats, sizeof(keystats)); 606 (void)printf("%9d %s (free %d%% norefs %d%% taken %d%% shared %d%%)\n", 607 keystats.ks_allocs, "code cache keys allocated", 608 PCT(keystats.ks_allocfree, keystats.ks_allocs), 609 PCT(keystats.ks_norefs, keystats.ks_allocs), 610 PCT(keystats.ks_taken, keystats.ks_allocs), 611 PCT(keystats.ks_shared, keystats.ks_allocs)); 612 kread(X_DKEYSTATS, &keystats, sizeof(keystats)); 613 (void)printf("%9d %s (free %d%% norefs %d%% taken %d%% shared %d%%)\n", 614 keystats.ks_allocs, "data cache keys allocated", 615 PCT(keystats.ks_allocfree, keystats.ks_allocs), 616 PCT(keystats.ks_norefs, keystats.ks_allocs), 617 PCT(keystats.ks_taken, keystats.ks_allocs), 618 PCT(keystats.ks_shared, keystats.ks_allocs)); 619 #endif 620 } 621 622 #ifdef notdef 623 void 624 doforkst() 625 { 626 struct forkstat fks; 627 628 kread(X_FORKSTAT, &fks, sizeof(struct forkstat)); 629 (void)printf("%d forks, %d pages, average %.2f\n", 630 fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork); 631 (void)printf("%d vforks, %d pages, average %.2f\n", 632 fks.cntvfork, fks.sizvfork, (double)fks.sizvfork / fks.cntvfork); 633 } 634 #endif 635 636 void 637 dkstats() 638 { 639 register int dn, state; 640 double etime; 641 long tmp; 642 643 for (dn = 0; dn < dk_ndrive; ++dn) { 644 tmp = cur.xfer[dn]; 645 cur.xfer[dn] -= last.xfer[dn]; 646 last.xfer[dn] = tmp; 647 } 648 etime = 0; 649 for (state = 0; state < CPUSTATES; ++state) { 650 tmp = cur.time[state]; 651 cur.time[state] -= last.time[state]; 652 last.time[state] = tmp; 653 etime += cur.time[state]; 654 } 655 if (etime == 0) 656 etime = 1; 657 etime /= hz; 658 for (dn = 0; dn < dk_ndrive; ++dn) { 659 if (!dr_select[dn]) 660 continue; 661 (void)printf("%2.0f ", cur.xfer[dn] / etime); 662 } 663 } 664 665 void 666 cpustats() 667 { 668 register int state; 669 double pct, total; 670 671 total = 0; 672 for (state = 0; state < CPUSTATES; ++state) 673 total += cur.time[state]; 674 if (total) 675 pct = 100 / total; 676 else 677 pct = 0; 678 (void)printf("%2.0f ", (cur.time[CP_USER] + cur.time[CP_NICE]) * pct); 679 (void)printf("%2.0f ", (cur.time[CP_SYS] + cur.time[CP_INTR]) * pct); 680 (void)printf("%2.0f", cur.time[CP_IDLE] * pct); 681 } 682 683 void 684 dointr() 685 { 686 register long *intrcnt, inttotal, uptime; 687 register int nintr, inamlen; 688 register char *intrname; 689 690 uptime = getuptime(); 691 nintr = namelist[X_EINTRCNT].n_value - namelist[X_INTRCNT].n_value; 692 inamlen = 693 namelist[X_EINTRNAMES].n_value - namelist[X_INTRNAMES].n_value; 694 intrcnt = malloc((size_t)nintr); 695 intrname = malloc((size_t)inamlen); 696 if (intrcnt == NULL || intrname == NULL) { 697 (void)fprintf(stderr, "vmstat: %s.\n", strerror(errno)); 698 exit(1); 699 } 700 kread(X_INTRCNT, intrcnt, (size_t)nintr); 701 kread(X_INTRNAMES, intrname, (size_t)inamlen); 702 (void)printf("interrupt total rate\n"); 703 inttotal = 0; 704 nintr /= sizeof(long); 705 while (--nintr >= 0) { 706 if (*intrcnt) 707 (void)printf("%-12s %8ld %8ld\n", intrname, 708 *intrcnt, *intrcnt / uptime); 709 intrname += strlen(intrname) + 1; 710 inttotal += *intrcnt++; 711 } 712 (void)printf("Total %8ld %8ld\n", inttotal, inttotal / uptime); 713 } 714 715 /* 716 * These names are defined in <sys/malloc.h>. 717 */ 718 char *kmemnames[] = INITKMEMNAMES; 719 720 void 721 domem() 722 { 723 register struct kmembuckets *kp; 724 register struct kmemstats *ks; 725 register int i, j; 726 int len, size, first; 727 long totuse = 0, totfree = 0, totreq = 0; 728 char *name; 729 struct kmemstats kmemstats[M_LAST]; 730 struct kmembuckets buckets[MINBUCKET + 16]; 731 732 kread(X_KMEMBUCKETS, buckets, sizeof(buckets)); 733 (void)printf("Memory statistics by bucket size\n"); 734 (void)printf( 735 " Size In Use Free Requests HighWater Couldfree\n"); 736 for (i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16; i++, kp++) { 737 if (kp->kb_calls == 0) 738 continue; 739 size = 1 << i; 740 (void)printf("%8d %8ld %6ld %10ld %7ld %10ld\n", size, 741 kp->kb_total - kp->kb_totalfree, 742 kp->kb_totalfree, kp->kb_calls, 743 kp->kb_highwat, kp->kb_couldfree); 744 totfree += size * kp->kb_totalfree; 745 } 746 747 kread(X_KMEMSTAT, kmemstats, sizeof(kmemstats)); 748 (void)printf("\nMemory usage type by bucket size\n"); 749 (void)printf(" Size Type(s)\n"); 750 kp = &buckets[MINBUCKET]; 751 for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) { 752 if (kp->kb_calls == 0) 753 continue; 754 first = 1; 755 len = 8; 756 for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) { 757 if (ks->ks_calls == 0) 758 continue; 759 if ((ks->ks_size & j) == 0) 760 continue; 761 name = kmemnames[i] ? kmemnames[i] : "undefined"; 762 len += 2 + strlen(name); 763 if (first) 764 printf("%8d %s", j, name); 765 else 766 printf(","); 767 if (len >= 80) { 768 printf("\n\t "); 769 len = 10 + strlen(name); 770 } 771 if (!first) 772 printf(" %s", name); 773 first = 0; 774 } 775 printf("\n"); 776 } 777 778 (void)printf( 779 "\nMemory statistics by type Type Kern\n"); 780 (void)printf( 781 " Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)\n"); 782 for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) { 783 if (ks->ks_calls == 0) 784 continue; 785 (void)printf("%11s%6ld%6ldK%7ldK%6ldK%9ld%5u%6u", 786 kmemnames[i] ? kmemnames[i] : "undefined", 787 ks->ks_inuse, (ks->ks_memuse + 1023) / 1024, 788 (ks->ks_maxused + 1023) / 1024, 789 (ks->ks_limit + 1023) / 1024, ks->ks_calls, 790 ks->ks_limblocks, ks->ks_mapblocks); 791 first = 1; 792 for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) { 793 if ((ks->ks_size & j) == 0) 794 continue; 795 if (first) 796 printf(" %d", j); 797 else 798 printf(",%d", j); 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 (void)fprintf(stderr, 826 "vmstat: symbol %s not defined\n", sym); 827 exit(1); 828 } 829 if (kvm_read(kd, namelist[nlx].n_value, addr, size) != size) { 830 sym = namelist[nlx].n_name; 831 if (*sym == '_') 832 ++sym; 833 (void)fprintf(stderr, "vmstat: %s: %s\n", sym, kvm_geterr(kd)); 834 exit(1); 835 } 836 } 837 838 void 839 usage() 840 { 841 (void)fprintf(stderr, 842 #ifndef NEWVM 843 "usage: vmstat [-fimst] [-c count] [-M core] \ 844 [-N system] [-w wait] [disks]\n"); 845 #else 846 "usage: vmstat [-ims] [-c count] [-M core] \ 847 [-N system] [-w wait] [disks]\n"); 848 #endif 849 exit(1); 850 } 851