vmstat.c revision 1.29
1 /* $NetBSD: vmstat.c,v 1.29 1996/05/10 23:19:32 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1980, 1986, 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #ifndef lint 37 static char copyright[] = 38 "@(#) Copyright (c) 1980, 1986, 1991, 1993\n\ 39 The Regents of the University of California. All rights reserved.\n"; 40 #endif /* not lint */ 41 42 #ifndef lint 43 #if 0 44 static char sccsid[] = "@(#)vmstat.c 8.1 (Berkeley) 6/6/93"; 45 #else 46 static char rcsid[] = "$NetBSD: vmstat.c,v 1.29 1996/05/10 23:19:32 thorpej Exp $"; 47 #endif 48 #endif /* not lint */ 49 50 #include <sys/param.h> 51 #include <sys/time.h> 52 #include <sys/proc.h> 53 #include <sys/user.h> 54 #include <sys/dkstat.h> 55 #include <sys/buf.h> 56 #include <sys/namei.h> 57 #include <sys/malloc.h> 58 #include <sys/fcntl.h> 59 #include <sys/ioctl.h> 60 #include <sys/sysctl.h> 61 #include <sys/device.h> 62 #include <vm/vm.h> 63 #include <time.h> 64 #include <nlist.h> 65 #include <kvm.h> 66 #include <errno.h> 67 #include <unistd.h> 68 #include <signal.h> 69 #include <stdio.h> 70 #include <ctype.h> 71 #include <stdlib.h> 72 #include <string.h> 73 #include <paths.h> 74 #include <limits.h> 75 #include "dkstats.h" 76 77 #define NEWVM /* XXX till old has been updated or purged */ 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_KMEMSTAT 12 104 { "_kmemstats" }, 105 #define X_KMEMBUCKETS 13 106 { "_bucket" }, 107 #define X_ALLEVENTS 14 108 { "_allevents" }, 109 #ifdef notdef 110 #define X_DEFICIT 15 111 { "_deficit" }, 112 #define X_FORKSTAT 16 113 { "_forkstat" }, 114 #define X_REC 17 115 { "_rectime" }, 116 #define X_PGIN 18 117 { "_pgintime" }, 118 #define X_XSTATS 19 119 { "_xstats" }, 120 #define X_END 20 121 #else 122 #define X_END 15 123 #endif 124 #ifdef tahoe 125 #define X_VBDINIT (X_END) 126 { "_vbdinit" }, 127 #define X_CKEYSTATS (X_END+1) 128 { "_ckeystats" }, 129 #define X_DKEYSTATS (X_END+2) 130 { "_dkeystats" }, 131 #endif 132 #if defined(pc532) 133 #define X_IVT (X_END) 134 { "_ivt" }, 135 #endif 136 { "" }, 137 }; 138 139 /* Objects defined in dkstats.c */ 140 extern struct _disk cur; 141 extern char **dr_name; 142 extern int *dk_select, dk_ndrive; 143 144 struct vmmeter sum, osum; 145 int ndrives; 146 147 int winlines = 20; 148 149 kvm_t *kd; 150 151 #define FORKSTAT 0x01 152 #define INTRSTAT 0x02 153 #define MEMSTAT 0x04 154 #define SUMSTAT 0x08 155 #define TIMESTAT 0x10 156 #define VMSTAT 0x20 157 158 void cpustats __P((void)); 159 void dkstats __P((void)); 160 void dointr __P((void)); 161 void domem __P((void)); 162 void dosum __P((void)); 163 void dovmstat __P((u_int, int)); 164 void kread __P((int, void *, size_t)); 165 void usage __P((void)); 166 #ifdef notdef 167 void dotimes __P((void)); 168 void doforkst __P((void)); 169 #endif 170 171 char **choosedrives __P((char **)); 172 173 /* Namelist and memory file names. */ 174 char *nlistf, *memf; 175 176 main(argc, argv) 177 register int argc; 178 register char **argv; 179 { 180 extern int optind; 181 extern char *optarg; 182 register int c, todo; 183 u_int interval; 184 int reps; 185 char errbuf[_POSIX2_LINE_MAX]; 186 187 memf = nlistf = NULL; 188 interval = reps = todo = 0; 189 while ((c = getopt(argc, argv, "c:fiM:mN:stw:")) != EOF) { 190 switch (c) { 191 case 'c': 192 reps = atoi(optarg); 193 break; 194 #ifndef notdef 195 case 'f': 196 todo |= FORKSTAT; 197 break; 198 #endif 199 case 'i': 200 todo |= INTRSTAT; 201 break; 202 case 'M': 203 memf = optarg; 204 break; 205 case 'm': 206 todo |= MEMSTAT; 207 break; 208 case 'N': 209 nlistf = optarg; 210 break; 211 case 's': 212 todo |= SUMSTAT; 213 break; 214 #ifndef notdef 215 case 't': 216 todo |= TIMESTAT; 217 break; 218 #endif 219 case 'w': 220 interval = atoi(optarg); 221 break; 222 case '?': 223 default: 224 usage(); 225 } 226 } 227 argc -= optind; 228 argv += optind; 229 230 if (todo == 0) 231 todo = VMSTAT; 232 233 /* 234 * Discard setgid privileges if not the running kernel so that bad 235 * guys can't print interesting stuff from kernel memory. 236 */ 237 if (nlistf != NULL || memf != NULL) 238 setgid(getgid()); 239 240 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf); 241 if (kd == 0) { 242 (void)fprintf(stderr, 243 "vmstat: kvm_openfiles: %s\n", errbuf); 244 exit(1); 245 } 246 247 if ((c = kvm_nlist(kd, namelist)) != 0) { 248 if (c > 0) { 249 (void)fprintf(stderr, 250 "vmstat: undefined symbols:"); 251 for (c = 0; 252 c < sizeof(namelist)/sizeof(namelist[0]); c++) 253 if (namelist[c].n_type == 0) 254 fprintf(stderr, " %s", 255 namelist[c].n_name); 256 (void)fputc('\n', stderr); 257 } else 258 (void)fprintf(stderr, "vmstat: kvm_nlist: %s\n", 259 kvm_geterr(kd)); 260 exit(1); 261 } 262 263 if (todo & VMSTAT) { 264 struct winsize winsize; 265 266 dkinit(0); /* Initialize disk stats, no disks selected. */ 267 argv = choosedrives(argv); /* Select disks. */ 268 winsize.ws_row = 0; 269 (void) ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&winsize); 270 if (winsize.ws_row > 0) 271 winlines = winsize.ws_row; 272 273 } 274 275 #define BACKWARD_COMPATIBILITY 276 #ifdef BACKWARD_COMPATIBILITY 277 if (*argv) { 278 interval = atoi(*argv); 279 if (*++argv) 280 reps = atoi(*argv); 281 } 282 #endif 283 284 if (interval) { 285 if (!reps) 286 reps = -1; 287 } else if (reps) 288 interval = 1; 289 290 #ifdef notdef 291 if (todo & FORKSTAT) 292 doforkst(); 293 #endif 294 if (todo & MEMSTAT) 295 domem(); 296 if (todo & SUMSTAT) 297 dosum(); 298 #ifdef notdef 299 if (todo & TIMESTAT) 300 dotimes(); 301 #endif 302 if (todo & INTRSTAT) 303 dointr(); 304 if (todo & VMSTAT) 305 dovmstat(interval, reps); 306 exit(0); 307 } 308 309 char ** 310 choosedrives(argv) 311 char **argv; 312 { 313 register int i; 314 register char **cp; 315 char buf[30]; 316 317 /* 318 * Choose drives to be displayed. Priority goes to (in order) drives 319 * supplied as arguments, default drives. If everything isn't filled 320 * in and there are drives not taken care of, display the first few 321 * that fit. 322 */ 323 #define BACKWARD_COMPATIBILITY 324 for (ndrives = 0; *argv; ++argv) { 325 #ifdef BACKWARD_COMPATIBILITY 326 if (isdigit(**argv)) 327 break; 328 #endif 329 for (i = 0; i < dk_ndrive; i++) { 330 if (strcmp(dr_name[i], *argv)) 331 continue; 332 dk_select[i] = 1; 333 ++ndrives; 334 break; 335 } 336 } 337 for (i = 0; i < dk_ndrive && ndrives < 4; i++) { 338 if (dk_select[i]) 339 continue; 340 dk_select[i] = 1; 341 ++ndrives; 342 } 343 return(argv); 344 } 345 346 long 347 getuptime() 348 { 349 static time_t now, boottime; 350 time_t uptime; 351 352 if (boottime == 0) 353 kread(X_BOOTTIME, &boottime, sizeof(boottime)); 354 (void)time(&now); 355 uptime = now - boottime; 356 if (uptime <= 0 || uptime > 60*60*24*365*10) { 357 (void)fprintf(stderr, 358 "vmstat: time makes no sense; namelist must be wrong.\n"); 359 exit(1); 360 } 361 return(uptime); 362 } 363 364 int hz, hdrcnt; 365 366 void 367 dovmstat(interval, reps) 368 u_int interval; 369 int reps; 370 { 371 struct vmtotal total; 372 time_t uptime, halfuptime; 373 void needhdr(); 374 int mib[2]; 375 size_t size; 376 377 uptime = getuptime(); 378 halfuptime = uptime / 2; 379 (void)signal(SIGCONT, needhdr); 380 381 if (namelist[X_STATHZ].n_type != 0 && namelist[X_STATHZ].n_value != 0) 382 kread(X_STATHZ, &hz, sizeof(hz)); 383 if (!hz) 384 kread(X_HZ, &hz, sizeof(hz)); 385 386 for (hdrcnt = 1;;) { 387 if (!--hdrcnt) 388 printhdr(); 389 /* Read new disk statistics */ 390 dkreadstats(); 391 kread(X_SUM, &sum, sizeof(sum)); 392 size = sizeof(total); 393 mib[0] = CTL_VM; 394 mib[1] = VM_METER; 395 if (sysctl(mib, 2, &total, &size, NULL, 0) < 0) { 396 printf("Can't get kerninfo: %s\n", strerror(errno)); 397 bzero(&total, sizeof(total)); 398 } 399 (void)printf("%2d%2d%2d", 400 total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw); 401 #define pgtok(a) ((a) * (sum.v_page_size >> 10)) 402 #define rate(x) (((x) + halfuptime) / uptime) /* round */ 403 (void)printf("%6ld%6ld ", 404 pgtok(total.t_avm), pgtok(total.t_free)); 405 #ifdef NEWVM 406 (void)printf("%4lu ", rate(sum.v_faults - osum.v_faults)); 407 (void)printf("%3lu ", 408 rate(sum.v_reactivated - osum.v_reactivated)); 409 (void)printf("%3lu ", rate(sum.v_pageins - osum.v_pageins)); 410 (void)printf("%3lu %3lu ", 411 rate(sum.v_pageouts - osum.v_pageouts), 0); 412 #else 413 (void)printf("%3lu %2lu ", 414 rate(sum.v_pgrec - (sum.v_xsfrec+sum.v_xifrec) - 415 (osum.v_pgrec - (osum.v_xsfrec+osum.v_xifrec))), 416 rate(sum.v_xsfrec + sum.v_xifrec - 417 osum.v_xsfrec - osum.v_xifrec)); 418 (void)printf("%3lu ", 419 rate(pgtok(sum.v_pgpgin - osum.v_pgpgin))); 420 (void)printf("%3lu %3lu ", 421 rate(pgtok(sum.v_pgpgout - osum.v_pgpgout)), 422 rate(pgtok(sum.v_dfree - osum.v_dfree))); 423 (void)printf("%3d ", pgtok(deficit)); 424 #endif 425 (void)printf("%3lu ", rate(sum.v_scan - osum.v_scan)); 426 dkstats(); 427 (void)printf("%4lu %4lu %3lu ", 428 rate(sum.v_intr - osum.v_intr), 429 rate(sum.v_syscall - osum.v_syscall), 430 rate(sum.v_swtch - osum.v_swtch)); 431 cpustats(); 432 (void)printf("\n"); 433 (void)fflush(stdout); 434 if (reps >= 0 && --reps <= 0) 435 break; 436 osum = sum; 437 uptime = interval; 438 /* 439 * We round upward to avoid losing low-frequency events 440 * (i.e., >= 1 per interval but < 1 per second). 441 */ 442 halfuptime = (uptime + 1) / 2; 443 (void)sleep(interval); 444 } 445 } 446 447 printhdr() 448 { 449 register int i; 450 451 (void)printf(" procs memory page%*s", 20, ""); 452 if (ndrives > 0) 453 #ifdef NEWVM 454 (void)printf("%s %*sfaults cpu\n", 455 ((ndrives > 1) ? "disks" : "disk"), 456 #else 457 (void)printf("disks %*sfaults cpu\n", 458 #endif 459 ((ndrives > 1) ? ndrives * 3 - 4 : 0), ""); 460 else 461 #ifdef NEWVM 462 (void)printf("%*s faults cpu\n", 463 #else 464 (void)printf("%*s faults cpu\n", 465 #endif 466 ndrives * 3, ""); 467 468 #ifdef NEWVM 469 (void)printf(" r b w avm fre flt re pi po fr sr "); 470 #else 471 (void)printf(" r b w avm fre re at pi po fr de sr "); 472 #endif 473 for (i = 0; i < dk_ndrive; i++) 474 if (dk_select[i]) 475 (void)printf("%c%c ", dr_name[i][0], 476 dr_name[i][strlen(dr_name[i]) - 1]); 477 (void)printf(" in sy cs us sy id\n"); 478 hdrcnt = winlines - 2; 479 } 480 481 /* 482 * Force a header to be prepended to the next output. 483 */ 484 void 485 needhdr() 486 { 487 488 hdrcnt = 1; 489 } 490 491 #ifdef notdef 492 void 493 dotimes() 494 { 495 u_int pgintime, rectime; 496 497 kread(X_REC, &rectime, sizeof(rectime)); 498 kread(X_PGIN, &pgintime, sizeof(pgintime)); 499 kread(X_SUM, &sum, sizeof(sum)); 500 (void)printf("%u reclaims, %u total time (usec)\n", 501 sum.v_pgrec, rectime); 502 (void)printf("average: %u usec / reclaim\n", rectime / sum.v_pgrec); 503 (void)printf("\n"); 504 (void)printf("%u page ins, %u total time (msec)\n", 505 sum.v_pgin, pgintime / 10); 506 (void)printf("average: %8.1f msec / page in\n", 507 pgintime / (sum.v_pgin * 10.0)); 508 } 509 #endif 510 511 pct(top, bot) 512 long top, bot; 513 { 514 long ans; 515 516 if (bot == 0) 517 return(0); 518 ans = (quad_t)top * 100 / bot; 519 return (ans); 520 } 521 522 #define PCT(top, bot) pct((long)(top), (long)(bot)) 523 524 #if defined(tahoe) 525 #include <machine/cpu.h> 526 #endif 527 528 void 529 dosum() 530 { 531 struct nchstats nchstats; 532 #ifndef NEWVM 533 struct xstats xstats; 534 #endif 535 long nchtotal; 536 #if defined(tahoe) 537 struct keystats keystats; 538 #endif 539 540 kread(X_SUM, &sum, sizeof(sum)); 541 (void)printf("%9u cpu context switches\n", sum.v_swtch); 542 (void)printf("%9u device interrupts\n", sum.v_intr); 543 (void)printf("%9u software interrupts\n", sum.v_soft); 544 (void)printf("%9u traps\n", sum.v_trap); 545 (void)printf("%9u system calls\n", sum.v_syscall); 546 (void)printf("%9u total faults taken\n", sum.v_faults); 547 (void)printf("%9u swap ins\n", sum.v_swpin); 548 (void)printf("%9u swap outs\n", sum.v_swpout); 549 (void)printf("%9u pages swapped in\n", sum.v_pswpin / CLSIZE); 550 (void)printf("%9u pages swapped out\n", sum.v_pswpout / CLSIZE); 551 (void)printf("%9u page ins\n", sum.v_pageins); 552 (void)printf("%9u page outs\n", sum.v_pageouts); 553 (void)printf("%9u pages paged in\n", sum.v_pgpgin); 554 (void)printf("%9u pages paged out\n", sum.v_pgpgout); 555 (void)printf("%9u pages reactivated\n", sum.v_reactivated); 556 (void)printf("%9u intransit blocking page faults\n", sum.v_intrans); 557 (void)printf("%9u zero fill pages created\n", sum.v_nzfod / CLSIZE); 558 (void)printf("%9u zero fill page faults\n", sum.v_zfod / CLSIZE); 559 (void)printf("%9u pages examined by the clock daemon\n", sum.v_scan); 560 (void)printf("%9u revolutions of the clock hand\n", sum.v_rev); 561 #ifdef NEWVM 562 (void)printf("%9u VM object cache lookups\n", sum.v_lookups); 563 (void)printf("%9u VM object hits\n", sum.v_hits); 564 (void)printf("%9u total VM faults taken\n", sum.v_vm_faults); 565 (void)printf("%9u copy-on-write faults\n", sum.v_cow_faults); 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 free\n", sum.v_free_count); 569 (void)printf("%9u pages wired down\n", sum.v_wire_count); 570 (void)printf("%9u pages active\n", sum.v_active_count); 571 (void)printf("%9u pages inactive\n", sum.v_inactive_count); 572 (void)printf("%9u bytes per page\n", sum.v_page_size); 573 #else 574 (void)printf("%9u sequential process pages freed\n", sum.v_seqfree); 575 (void)printf("%9u total reclaims (%d%% fast)\n", sum.v_pgrec, 576 PCT(sum.v_fastpgrec, sum.v_pgrec)); 577 (void)printf("%9u reclaims from free list\n", sum.v_pgfrec); 578 (void)printf("%9u executable fill pages created\n", 579 sum.v_nexfod / CLSIZE); 580 (void)printf("%9u executable fill page faults\n", 581 sum.v_exfod / CLSIZE); 582 (void)printf("%9u swap text pages found in free list\n", 583 sum.v_xsfrec); 584 (void)printf("%9u inode text pages found in free list\n", 585 sum.v_xifrec); 586 (void)printf("%9u file fill pages created\n", sum.v_nvrfod / CLSIZE); 587 (void)printf("%9u file fill page faults\n", sum.v_vrfod / CLSIZE); 588 (void)printf("%9u pages freed by the clock daemon\n", 589 sum.v_dfree / CLSIZE); 590 #endif 591 kread(X_NCHSTATS, &nchstats, sizeof(nchstats)); 592 nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits + 593 nchstats.ncs_badhits + nchstats.ncs_falsehits + 594 nchstats.ncs_miss + nchstats.ncs_long; 595 (void)printf("%9ld total name lookups\n", nchtotal); 596 (void)printf( 597 "%9s cache hits (%d%% pos + %d%% neg) system %d%% per-process\n", 598 "", PCT(nchstats.ncs_goodhits, nchtotal), 599 PCT(nchstats.ncs_neghits, nchtotal), 600 PCT(nchstats.ncs_pass2, nchtotal)); 601 (void)printf("%9s deletions %d%%, falsehits %d%%, toolong %d%%\n", "", 602 PCT(nchstats.ncs_badhits, nchtotal), 603 PCT(nchstats.ncs_falsehits, nchtotal), 604 PCT(nchstats.ncs_long, nchtotal)); 605 #ifndef NEWVM 606 kread(X_XSTATS, &xstats, sizeof(xstats)); 607 (void)printf("%9lu total calls to xalloc (cache hits %d%%)\n", 608 xstats.alloc, PCT(xstats.alloc_cachehit, xstats.alloc)); 609 (void)printf("%9s sticky %lu flushed %lu unused %lu\n", "", 610 xstats.alloc_inuse, xstats.alloc_cacheflush, xstats.alloc_unused); 611 (void)printf("%9lu total calls to xfree", xstats.free); 612 (void)printf(" (sticky %lu cached %lu swapped %lu)\n", 613 xstats.free_inuse, xstats.free_cache, xstats.free_cacheswap); 614 #endif 615 #if defined(tahoe) 616 kread(X_CKEYSTATS, &keystats, sizeof(keystats)); 617 (void)printf("%9d %s (free %d%% norefs %d%% taken %d%% shared %d%%)\n", 618 keystats.ks_allocs, "code cache keys allocated", 619 PCT(keystats.ks_allocfree, keystats.ks_allocs), 620 PCT(keystats.ks_norefs, keystats.ks_allocs), 621 PCT(keystats.ks_taken, keystats.ks_allocs), 622 PCT(keystats.ks_shared, keystats.ks_allocs)); 623 kread(X_DKEYSTATS, &keystats, sizeof(keystats)); 624 (void)printf("%9d %s (free %d%% norefs %d%% taken %d%% shared %d%%)\n", 625 keystats.ks_allocs, "data cache keys allocated", 626 PCT(keystats.ks_allocfree, keystats.ks_allocs), 627 PCT(keystats.ks_norefs, keystats.ks_allocs), 628 PCT(keystats.ks_taken, keystats.ks_allocs), 629 PCT(keystats.ks_shared, keystats.ks_allocs)); 630 #endif 631 } 632 633 #ifdef notdef 634 void 635 doforkst() 636 { 637 struct forkstat fks; 638 639 kread(X_FORKSTAT, &fks, sizeof(struct forkstat)); 640 (void)printf("%d forks, %d pages, average %.2f\n", 641 fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork); 642 (void)printf("%d vforks, %d pages, average %.2f\n", 643 fks.cntvfork, fks.sizvfork, (double)fks.sizvfork / fks.cntvfork); 644 } 645 #endif 646 647 void 648 dkstats() 649 { 650 register int dn, state; 651 double etime; 652 long tmp; 653 654 /* Calculate disk stat deltas. */ 655 dkswap(); 656 etime = 0; 657 for (state = 0; state < CPUSTATES; ++state) { 658 etime += cur.cp_time[state]; 659 } 660 if (etime == 0) 661 etime = 1; 662 etime /= hz; 663 for (dn = 0; dn < dk_ndrive; ++dn) { 664 if (!dk_select[dn]) 665 continue; 666 (void)printf("%2.0f ", cur.dk_xfer[dn] / etime); 667 } 668 } 669 670 void 671 cpustats() 672 { 673 register int state; 674 double pct, total; 675 676 total = 0; 677 for (state = 0; state < CPUSTATES; ++state) 678 total += cur.cp_time[state]; 679 if (total) 680 pct = 100 / total; 681 else 682 pct = 0; 683 (void)printf("%2.0f ", (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * pct); 684 (void)printf("%2.0f ", (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * pct); 685 (void)printf("%2.0f", cur.cp_time[CP_IDLE] * pct); 686 } 687 688 #if defined(pc532) 689 /* To get struct iv ...*/ 690 #define _KERNEL 691 #include <machine/psl.h> 692 #undef _KERNEL 693 void 694 dointr() 695 { 696 register long i, j, inttotal, uptime; 697 static char iname[64]; 698 struct iv ivt[32], *ivp = ivt; 699 700 iname[63] = '\0'; 701 uptime = getuptime(); 702 kread(X_IVT, ivp, sizeof(ivt)); 703 704 for (i = 0; i < 2; i++) { 705 (void)printf("%sware interrupts:\n", i ? "\nsoft" : "hard"); 706 (void)printf("interrupt total rate\n"); 707 inttotal = 0; 708 for (j = 0; j < 16; j++, ivp++) { 709 if (ivp->iv_vec && ivp->iv_use && ivp->iv_cnt) { 710 if (kvm_read(kd, (u_long)ivp->iv_use, iname, 63) != 63) { 711 (void)fprintf(stderr, "vmstat: iv_use: %s\n", 712 kvm_geterr(kd)); 713 exit(1); 714 } 715 (void)printf("%-12s %8ld %8ld\n", iname, 716 ivp->iv_cnt, ivp->iv_cnt / uptime); 717 inttotal += ivp->iv_cnt; 718 } 719 } 720 (void)printf("Total %8ld %8ld\n", 721 inttotal, inttotal / uptime); 722 } 723 } 724 #else 725 void 726 dointr() 727 { 728 register long *intrcnt, inttotal, uptime; 729 register int nintr, inamlen; 730 register char *intrname; 731 struct evcntlist allevents; 732 struct evcnt evcnt, *evptr; 733 struct device dev; 734 735 uptime = getuptime(); 736 nintr = namelist[X_EINTRCNT].n_value - namelist[X_INTRCNT].n_value; 737 inamlen = 738 namelist[X_EINTRNAMES].n_value - namelist[X_INTRNAMES].n_value; 739 intrcnt = malloc((size_t)nintr); 740 intrname = malloc((size_t)inamlen); 741 if (intrcnt == NULL || intrname == NULL) { 742 (void)fprintf(stderr, "vmstat: %s.\n", strerror(errno)); 743 exit(1); 744 } 745 kread(X_INTRCNT, intrcnt, (size_t)nintr); 746 kread(X_INTRNAMES, intrname, (size_t)inamlen); 747 (void)printf("interrupt total rate\n"); 748 inttotal = 0; 749 nintr /= sizeof(long); 750 while (--nintr >= 0) { 751 if (*intrcnt) 752 (void)printf("%-14s %8ld %8ld\n", intrname, 753 *intrcnt, *intrcnt / uptime); 754 intrname += strlen(intrname) + 1; 755 inttotal += *intrcnt++; 756 } 757 kread(X_ALLEVENTS, &allevents, sizeof allevents); 758 evptr = allevents.tqh_first; 759 while (evptr) { 760 if (kvm_read(kd, (long)evptr, (void *)&evcnt, 761 sizeof evcnt) != sizeof evcnt) { 762 (void)fprintf(stderr, "vmstat: event chain trashed\n", 763 kvm_geterr(kd)); 764 exit(1); 765 } 766 if (strcmp(evcnt.ev_name, "intr") == 0) { 767 if (kvm_read(kd, (long)evcnt.ev_dev, (void *)&dev, 768 sizeof dev) != sizeof dev) { 769 (void)fprintf(stderr, "vmstat: event chain trashed\n", 770 kvm_geterr(kd)); 771 exit(1); 772 } 773 if (evcnt.ev_count) 774 (void)printf("%-14s %8ld %8ld\n", dev.dv_xname, 775 evcnt.ev_count, evcnt.ev_count / uptime); 776 inttotal += evcnt.ev_count++; 777 } 778 evptr = evcnt.ev_list.tqe_next; 779 } 780 (void)printf("Total %8ld %8ld\n", inttotal, inttotal / uptime); 781 } 782 #endif 783 784 /* 785 * These names are defined in <sys/malloc.h>. 786 */ 787 char *kmemnames[] = INITKMEMNAMES; 788 789 void 790 domem() 791 { 792 register struct kmembuckets *kp; 793 register struct kmemstats *ks; 794 register int i, j; 795 int len, size, first; 796 long totuse = 0, totfree = 0, totreq = 0; 797 char *name; 798 struct kmemstats kmemstats[M_LAST]; 799 struct kmembuckets buckets[MINBUCKET + 16]; 800 801 kread(X_KMEMBUCKETS, buckets, sizeof(buckets)); 802 (void)printf("Memory statistics by bucket size\n"); 803 (void)printf( 804 " Size In Use Free Requests HighWater Couldfree\n"); 805 for (i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16; i++, kp++) { 806 if (kp->kb_calls == 0) 807 continue; 808 size = 1 << i; 809 (void)printf("%8d %8ld %6ld %10ld %7ld %10ld\n", size, 810 kp->kb_total - kp->kb_totalfree, 811 kp->kb_totalfree, kp->kb_calls, 812 kp->kb_highwat, kp->kb_couldfree); 813 totfree += size * kp->kb_totalfree; 814 } 815 816 kread(X_KMEMSTAT, kmemstats, sizeof(kmemstats)); 817 (void)printf("\nMemory usage type by bucket size\n"); 818 (void)printf(" Size Type(s)\n"); 819 kp = &buckets[MINBUCKET]; 820 for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) { 821 if (kp->kb_calls == 0) 822 continue; 823 first = 1; 824 len = 8; 825 for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) { 826 if (ks->ks_calls == 0) 827 continue; 828 if ((ks->ks_size & j) == 0) 829 continue; 830 name = kmemnames[i] ? kmemnames[i] : "undefined"; 831 len += 2 + strlen(name); 832 if (first) 833 printf("%8d %s", j, name); 834 else 835 printf(","); 836 if (len >= 80) { 837 printf("\n\t "); 838 len = 10 + strlen(name); 839 } 840 if (!first) 841 printf(" %s", name); 842 first = 0; 843 } 844 printf("\n"); 845 } 846 847 (void)printf( 848 "\nMemory statistics by type Type Kern\n"); 849 (void)printf( 850 " Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)\n"); 851 for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) { 852 if (ks->ks_calls == 0) 853 continue; 854 (void)printf("%12s%6ld%6ldK%7ldK%6ldK%9ld%5u%6u", 855 kmemnames[i] ? kmemnames[i] : "undefined", 856 ks->ks_inuse, (ks->ks_memuse + 1023) / 1024, 857 (ks->ks_maxused + 1023) / 1024, 858 (ks->ks_limit + 1023) / 1024, ks->ks_calls, 859 ks->ks_limblocks, ks->ks_mapblocks); 860 first = 1; 861 for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) { 862 if ((ks->ks_size & j) == 0) 863 continue; 864 if (first) 865 printf(" %d", j); 866 else 867 printf(",%d", j); 868 first = 0; 869 } 870 printf("\n"); 871 totuse += ks->ks_memuse; 872 totreq += ks->ks_calls; 873 } 874 (void)printf("\nMemory Totals: In Use Free Requests\n"); 875 (void)printf(" %7ldK %6ldK %8ld\n", 876 (totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq); 877 } 878 879 /* 880 * kread reads something from the kernel, given its nlist index. 881 */ 882 void 883 kread(nlx, addr, size) 884 int nlx; 885 void *addr; 886 size_t size; 887 { 888 char *sym; 889 890 if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) { 891 sym = namelist[nlx].n_name; 892 if (*sym == '_') 893 ++sym; 894 (void)fprintf(stderr, 895 "vmstat: symbol %s not defined\n", sym); 896 exit(1); 897 } 898 if (kvm_read(kd, namelist[nlx].n_value, addr, size) != size) { 899 sym = namelist[nlx].n_name; 900 if (*sym == '_') 901 ++sym; 902 (void)fprintf(stderr, "vmstat: %s: %s\n", sym, kvm_geterr(kd)); 903 exit(1); 904 } 905 } 906 907 void 908 usage() 909 { 910 (void)fprintf(stderr, 911 #ifndef NEWVM 912 "usage: vmstat [-fimst] [-c count] [-M core] \ 913 [-N system] [-w wait] [disks]\n"); 914 #else 915 "usage: vmstat [-ims] [-c count] [-M core] \ 916 [-N system] [-w wait] [disks]\n"); 917 #endif 918 exit(1); 919 } 920 921
Indexes created Wed Sep 24 15:09:51 GMT 2025