vmstat.c revision 1.30
1 /* $NetBSD: vmstat.c,v 1.30 1996/06/05 00:18:58 cgd 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 1.30 1996/06/05 00:18:58 cgd 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; 350 static struct timeval boottime; 351 time_t uptime; 352 353 if (boottime.tv_sec == 0) 354 kread(X_BOOTTIME, &boottime, sizeof(boottime)); 355 (void)time(&now); 356 uptime = now - boottime.tv_sec; 357 if (uptime <= 0 || uptime > 60*60*24*365*10) { 358 (void)fprintf(stderr, 359 "vmstat: time makes no sense; namelist must be wrong.\n"); 360 exit(1); 361 } 362 return(uptime); 363 } 364 365 int hz, hdrcnt; 366 367 void 368 dovmstat(interval, reps) 369 u_int interval; 370 int reps; 371 { 372 struct vmtotal total; 373 time_t uptime, halfuptime; 374 void needhdr(); 375 int mib[2]; 376 size_t size; 377 378 uptime = getuptime(); 379 halfuptime = uptime / 2; 380 (void)signal(SIGCONT, needhdr); 381 382 if (namelist[X_STATHZ].n_type != 0 && namelist[X_STATHZ].n_value != 0) 383 kread(X_STATHZ, &hz, sizeof(hz)); 384 if (!hz) 385 kread(X_HZ, &hz, sizeof(hz)); 386 387 for (hdrcnt = 1;;) { 388 if (!--hdrcnt) 389 printhdr(); 390 /* Read new disk statistics */ 391 dkreadstats(); 392 kread(X_SUM, &sum, sizeof(sum)); 393 size = sizeof(total); 394 mib[0] = CTL_VM; 395 mib[1] = VM_METER; 396 if (sysctl(mib, 2, &total, &size, NULL, 0) < 0) { 397 printf("Can't get kerninfo: %s\n", strerror(errno)); 398 bzero(&total, sizeof(total)); 399 } 400 (void)printf("%2d%2d%2d", 401 total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw); 402 #define pgtok(a) ((a) * (sum.v_page_size >> 10)) 403 #define rate(x) (((x) + halfuptime) / uptime) /* round */ 404 (void)printf("%6ld%6ld ", 405 pgtok(total.t_avm), pgtok(total.t_free)); 406 #ifdef NEWVM 407 (void)printf("%4lu ", rate(sum.v_faults - osum.v_faults)); 408 (void)printf("%3lu ", 409 rate(sum.v_reactivated - osum.v_reactivated)); 410 (void)printf("%3lu ", rate(sum.v_pageins - osum.v_pageins)); 411 (void)printf("%3lu %3lu ", 412 rate(sum.v_pageouts - osum.v_pageouts), 0); 413 #else 414 (void)printf("%3lu %2lu ", 415 rate(sum.v_pgrec - (sum.v_xsfrec+sum.v_xifrec) - 416 (osum.v_pgrec - (osum.v_xsfrec+osum.v_xifrec))), 417 rate(sum.v_xsfrec + sum.v_xifrec - 418 osum.v_xsfrec - osum.v_xifrec)); 419 (void)printf("%3lu ", 420 rate(pgtok(sum.v_pgpgin - osum.v_pgpgin))); 421 (void)printf("%3lu %3lu ", 422 rate(pgtok(sum.v_pgpgout - osum.v_pgpgout)), 423 rate(pgtok(sum.v_dfree - osum.v_dfree))); 424 (void)printf("%3d ", pgtok(deficit)); 425 #endif 426 (void)printf("%3lu ", rate(sum.v_scan - osum.v_scan)); 427 dkstats(); 428 (void)printf("%4lu %4lu %3lu ", 429 rate(sum.v_intr - osum.v_intr), 430 rate(sum.v_syscall - osum.v_syscall), 431 rate(sum.v_swtch - osum.v_swtch)); 432 cpustats(); 433 (void)printf("\n"); 434 (void)fflush(stdout); 435 if (reps >= 0 && --reps <= 0) 436 break; 437 osum = sum; 438 uptime = interval; 439 /* 440 * We round upward to avoid losing low-frequency events 441 * (i.e., >= 1 per interval but < 1 per second). 442 */ 443 halfuptime = (uptime + 1) / 2; 444 (void)sleep(interval); 445 } 446 } 447 448 printhdr() 449 { 450 register int i; 451 452 (void)printf(" procs memory page%*s", 20, ""); 453 if (ndrives > 0) 454 #ifdef NEWVM 455 (void)printf("%s %*sfaults cpu\n", 456 ((ndrives > 1) ? "disks" : "disk"), 457 #else 458 (void)printf("disks %*sfaults cpu\n", 459 #endif 460 ((ndrives > 1) ? ndrives * 3 - 4 : 0), ""); 461 else 462 #ifdef NEWVM 463 (void)printf("%*s faults cpu\n", 464 #else 465 (void)printf("%*s faults cpu\n", 466 #endif 467 ndrives * 3, ""); 468 469 #ifdef NEWVM 470 (void)printf(" r b w avm fre flt re pi po fr sr "); 471 #else 472 (void)printf(" r b w avm fre re at pi po fr de sr "); 473 #endif 474 for (i = 0; i < dk_ndrive; i++) 475 if (dk_select[i]) 476 (void)printf("%c%c ", dr_name[i][0], 477 dr_name[i][strlen(dr_name[i]) - 1]); 478 (void)printf(" in sy cs us sy id\n"); 479 hdrcnt = winlines - 2; 480 } 481 482 /* 483 * Force a header to be prepended to the next output. 484 */ 485 void 486 needhdr() 487 { 488 489 hdrcnt = 1; 490 } 491 492 #ifdef notdef 493 void 494 dotimes() 495 { 496 u_int pgintime, rectime; 497 498 kread(X_REC, &rectime, sizeof(rectime)); 499 kread(X_PGIN, &pgintime, sizeof(pgintime)); 500 kread(X_SUM, &sum, sizeof(sum)); 501 (void)printf("%u reclaims, %u total time (usec)\n", 502 sum.v_pgrec, rectime); 503 (void)printf("average: %u usec / reclaim\n", rectime / sum.v_pgrec); 504 (void)printf("\n"); 505 (void)printf("%u page ins, %u total time (msec)\n", 506 sum.v_pgin, pgintime / 10); 507 (void)printf("average: %8.1f msec / page in\n", 508 pgintime / (sum.v_pgin * 10.0)); 509 } 510 #endif 511 512 pct(top, bot) 513 long top, bot; 514 { 515 long ans; 516 517 if (bot == 0) 518 return(0); 519 ans = (quad_t)top * 100 / bot; 520 return (ans); 521 } 522 523 #define PCT(top, bot) pct((long)(top), (long)(bot)) 524 525 #if defined(tahoe) 526 #include <machine/cpu.h> 527 #endif 528 529 void 530 dosum() 531 { 532 struct nchstats nchstats; 533 #ifndef NEWVM 534 struct xstats xstats; 535 #endif 536 long nchtotal; 537 #if defined(tahoe) 538 struct keystats keystats; 539 #endif 540 541 kread(X_SUM, &sum, sizeof(sum)); 542 (void)printf("%9u cpu context switches\n", sum.v_swtch); 543 (void)printf("%9u device interrupts\n", sum.v_intr); 544 (void)printf("%9u software interrupts\n", sum.v_soft); 545 (void)printf("%9u traps\n", sum.v_trap); 546 (void)printf("%9u system calls\n", sum.v_syscall); 547 (void)printf("%9u total faults taken\n", sum.v_faults); 548 (void)printf("%9u swap ins\n", sum.v_swpin); 549 (void)printf("%9u swap outs\n", sum.v_swpout); 550 (void)printf("%9u pages swapped in\n", sum.v_pswpin / CLSIZE); 551 (void)printf("%9u pages swapped out\n", sum.v_pswpout / CLSIZE); 552 (void)printf("%9u page ins\n", sum.v_pageins); 553 (void)printf("%9u page outs\n", sum.v_pageouts); 554 (void)printf("%9u pages paged in\n", sum.v_pgpgin); 555 (void)printf("%9u pages paged out\n", sum.v_pgpgout); 556 (void)printf("%9u pages reactivated\n", sum.v_reactivated); 557 (void)printf("%9u intransit blocking page faults\n", sum.v_intrans); 558 (void)printf("%9u zero fill pages created\n", sum.v_nzfod / CLSIZE); 559 (void)printf("%9u zero fill page faults\n", sum.v_zfod / CLSIZE); 560 (void)printf("%9u pages examined by the clock daemon\n", sum.v_scan); 561 (void)printf("%9u revolutions of the clock hand\n", sum.v_rev); 562 #ifdef NEWVM 563 (void)printf("%9u VM object cache lookups\n", sum.v_lookups); 564 (void)printf("%9u VM object hits\n", sum.v_hits); 565 (void)printf("%9u total VM faults taken\n", sum.v_vm_faults); 566 (void)printf("%9u copy-on-write faults\n", sum.v_cow_faults); 567 (void)printf("%9u pages freed by daemon\n", sum.v_dfree); 568 (void)printf("%9u pages freed by exiting processes\n", sum.v_pfree); 569 (void)printf("%9u pages free\n", sum.v_free_count); 570 (void)printf("%9u pages wired down\n", sum.v_wire_count); 571 (void)printf("%9u pages active\n", sum.v_active_count); 572 (void)printf("%9u pages inactive\n", sum.v_inactive_count); 573 (void)printf("%9u bytes per page\n", sum.v_page_size); 574 #else 575 (void)printf("%9u sequential process pages freed\n", sum.v_seqfree); 576 (void)printf("%9u total reclaims (%d%% fast)\n", sum.v_pgrec, 577 PCT(sum.v_fastpgrec, sum.v_pgrec)); 578 (void)printf("%9u reclaims from free list\n", sum.v_pgfrec); 579 (void)printf("%9u executable fill pages created\n", 580 sum.v_nexfod / CLSIZE); 581 (void)printf("%9u executable fill page faults\n", 582 sum.v_exfod / CLSIZE); 583 (void)printf("%9u swap text pages found in free list\n", 584 sum.v_xsfrec); 585 (void)printf("%9u inode text pages found in free list\n", 586 sum.v_xifrec); 587 (void)printf("%9u file fill pages created\n", sum.v_nvrfod / CLSIZE); 588 (void)printf("%9u file fill page faults\n", sum.v_vrfod / CLSIZE); 589 (void)printf("%9u pages freed by the clock daemon\n", 590 sum.v_dfree / CLSIZE); 591 #endif 592 kread(X_NCHSTATS, &nchstats, sizeof(nchstats)); 593 nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits + 594 nchstats.ncs_badhits + nchstats.ncs_falsehits + 595 nchstats.ncs_miss + nchstats.ncs_long; 596 (void)printf("%9ld total name lookups\n", nchtotal); 597 (void)printf( 598 "%9s cache hits (%d%% pos + %d%% neg) system %d%% per-process\n", 599 "", PCT(nchstats.ncs_goodhits, nchtotal), 600 PCT(nchstats.ncs_neghits, nchtotal), 601 PCT(nchstats.ncs_pass2, nchtotal)); 602 (void)printf("%9s deletions %d%%, falsehits %d%%, toolong %d%%\n", "", 603 PCT(nchstats.ncs_badhits, nchtotal), 604 PCT(nchstats.ncs_falsehits, nchtotal), 605 PCT(nchstats.ncs_long, nchtotal)); 606 #ifndef NEWVM 607 kread(X_XSTATS, &xstats, sizeof(xstats)); 608 (void)printf("%9lu total calls to xalloc (cache hits %d%%)\n", 609 xstats.alloc, PCT(xstats.alloc_cachehit, xstats.alloc)); 610 (void)printf("%9s sticky %lu flushed %lu unused %lu\n", "", 611 xstats.alloc_inuse, xstats.alloc_cacheflush, xstats.alloc_unused); 612 (void)printf("%9lu total calls to xfree", xstats.free); 613 (void)printf(" (sticky %lu cached %lu swapped %lu)\n", 614 xstats.free_inuse, xstats.free_cache, xstats.free_cacheswap); 615 #endif 616 #if defined(tahoe) 617 kread(X_CKEYSTATS, &keystats, sizeof(keystats)); 618 (void)printf("%9d %s (free %d%% norefs %d%% taken %d%% shared %d%%)\n", 619 keystats.ks_allocs, "code cache keys allocated", 620 PCT(keystats.ks_allocfree, keystats.ks_allocs), 621 PCT(keystats.ks_norefs, keystats.ks_allocs), 622 PCT(keystats.ks_taken, keystats.ks_allocs), 623 PCT(keystats.ks_shared, keystats.ks_allocs)); 624 kread(X_DKEYSTATS, &keystats, sizeof(keystats)); 625 (void)printf("%9d %s (free %d%% norefs %d%% taken %d%% shared %d%%)\n", 626 keystats.ks_allocs, "data cache keys allocated", 627 PCT(keystats.ks_allocfree, keystats.ks_allocs), 628 PCT(keystats.ks_norefs, keystats.ks_allocs), 629 PCT(keystats.ks_taken, keystats.ks_allocs), 630 PCT(keystats.ks_shared, keystats.ks_allocs)); 631 #endif 632 } 633 634 #ifdef notdef 635 void 636 doforkst() 637 { 638 struct forkstat fks; 639 640 kread(X_FORKSTAT, &fks, sizeof(struct forkstat)); 641 (void)printf("%d forks, %d pages, average %.2f\n", 642 fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork); 643 (void)printf("%d vforks, %d pages, average %.2f\n", 644 fks.cntvfork, fks.sizvfork, (double)fks.sizvfork / fks.cntvfork); 645 } 646 #endif 647 648 void 649 dkstats() 650 { 651 register int dn, state; 652 double etime; 653 long tmp; 654 655 /* Calculate disk stat deltas. */ 656 dkswap(); 657 etime = 0; 658 for (state = 0; state < CPUSTATES; ++state) { 659 etime += cur.cp_time[state]; 660 } 661 if (etime == 0) 662 etime = 1; 663 etime /= hz; 664 for (dn = 0; dn < dk_ndrive; ++dn) { 665 if (!dk_select[dn]) 666 continue; 667 (void)printf("%2.0f ", cur.dk_xfer[dn] / etime); 668 } 669 } 670 671 void 672 cpustats() 673 { 674 register int state; 675 double pct, total; 676 677 total = 0; 678 for (state = 0; state < CPUSTATES; ++state) 679 total += cur.cp_time[state]; 680 if (total) 681 pct = 100 / total; 682 else 683 pct = 0; 684 (void)printf("%2.0f ", (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * pct); 685 (void)printf("%2.0f ", (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * pct); 686 (void)printf("%2.0f", cur.cp_time[CP_IDLE] * pct); 687 } 688 689 #if defined(pc532) 690 /* To get struct iv ...*/ 691 #define _KERNEL 692 #include <machine/psl.h> 693 #undef _KERNEL 694 void 695 dointr() 696 { 697 register long i, j, inttotal, uptime; 698 static char iname[64]; 699 struct iv ivt[32], *ivp = ivt; 700 701 iname[63] = '\0'; 702 uptime = getuptime(); 703 kread(X_IVT, ivp, sizeof(ivt)); 704 705 for (i = 0; i < 2; i++) { 706 (void)printf("%sware interrupts:\n", i ? "\nsoft" : "hard"); 707 (void)printf("interrupt total rate\n"); 708 inttotal = 0; 709 for (j = 0; j < 16; j++, ivp++) { 710 if (ivp->iv_vec && ivp->iv_use && ivp->iv_cnt) { 711 if (kvm_read(kd, (u_long)ivp->iv_use, iname, 63) != 63) { 712 (void)fprintf(stderr, "vmstat: iv_use: %s\n", 713 kvm_geterr(kd)); 714 exit(1); 715 } 716 (void)printf("%-12s %8ld %8ld\n", iname, 717 ivp->iv_cnt, ivp->iv_cnt / uptime); 718 inttotal += ivp->iv_cnt; 719 } 720 } 721 (void)printf("Total %8ld %8ld\n", 722 inttotal, inttotal / uptime); 723 } 724 } 725 #else 726 void 727 dointr() 728 { 729 register long *intrcnt, inttotal, uptime; 730 register int nintr, inamlen; 731 register char *intrname; 732 struct evcntlist allevents; 733 struct evcnt evcnt, *evptr; 734 struct device dev; 735 736 uptime = getuptime(); 737 nintr = namelist[X_EINTRCNT].n_value - namelist[X_INTRCNT].n_value; 738 inamlen = 739 namelist[X_EINTRNAMES].n_value - namelist[X_INTRNAMES].n_value; 740 intrcnt = malloc((size_t)nintr); 741 intrname = malloc((size_t)inamlen); 742 if (intrcnt == NULL || intrname == NULL) { 743 (void)fprintf(stderr, "vmstat: %s.\n", strerror(errno)); 744 exit(1); 745 } 746 kread(X_INTRCNT, intrcnt, (size_t)nintr); 747 kread(X_INTRNAMES, intrname, (size_t)inamlen); 748 (void)printf("interrupt total rate\n"); 749 inttotal = 0; 750 nintr /= sizeof(long); 751 while (--nintr >= 0) { 752 if (*intrcnt) 753 (void)printf("%-14s %8ld %8ld\n", intrname, 754 *intrcnt, *intrcnt / uptime); 755 intrname += strlen(intrname) + 1; 756 inttotal += *intrcnt++; 757 } 758 kread(X_ALLEVENTS, &allevents, sizeof allevents); 759 evptr = allevents.tqh_first; 760 while (evptr) { 761 if (kvm_read(kd, (long)evptr, (void *)&evcnt, 762 sizeof evcnt) != sizeof evcnt) { 763 (void)fprintf(stderr, "vmstat: event chain trashed\n", 764 kvm_geterr(kd)); 765 exit(1); 766 } 767 if (strcmp(evcnt.ev_name, "intr") == 0) { 768 if (kvm_read(kd, (long)evcnt.ev_dev, (void *)&dev, 769 sizeof dev) != sizeof dev) { 770 (void)fprintf(stderr, "vmstat: event chain trashed\n", 771 kvm_geterr(kd)); 772 exit(1); 773 } 774 if (evcnt.ev_count) 775 (void)printf("%-14s %8ld %8ld\n", dev.dv_xname, 776 evcnt.ev_count, evcnt.ev_count / uptime); 777 inttotal += evcnt.ev_count++; 778 } 779 evptr = evcnt.ev_list.tqe_next; 780 } 781 (void)printf("Total %8ld %8ld\n", inttotal, inttotal / uptime); 782 } 783 #endif 784 785 /* 786 * These names are defined in <sys/malloc.h>. 787 */ 788 char *kmemnames[] = INITKMEMNAMES; 789 790 void 791 domem() 792 { 793 register struct kmembuckets *kp; 794 register struct kmemstats *ks; 795 register int i, j; 796 int len, size, first; 797 long totuse = 0, totfree = 0, totreq = 0; 798 char *name; 799 struct kmemstats kmemstats[M_LAST]; 800 struct kmembuckets buckets[MINBUCKET + 16]; 801 802 kread(X_KMEMBUCKETS, buckets, sizeof(buckets)); 803 (void)printf("Memory statistics by bucket size\n"); 804 (void)printf( 805 " Size In Use Free Requests HighWater Couldfree\n"); 806 for (i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16; i++, kp++) { 807 if (kp->kb_calls == 0) 808 continue; 809 size = 1 << i; 810 (void)printf("%8d %8ld %6ld %10ld %7ld %10ld\n", size, 811 kp->kb_total - kp->kb_totalfree, 812 kp->kb_totalfree, kp->kb_calls, 813 kp->kb_highwat, kp->kb_couldfree); 814 totfree += size * kp->kb_totalfree; 815 } 816 817 kread(X_KMEMSTAT, kmemstats, sizeof(kmemstats)); 818 (void)printf("\nMemory usage type by bucket size\n"); 819 (void)printf(" Size Type(s)\n"); 820 kp = &buckets[MINBUCKET]; 821 for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) { 822 if (kp->kb_calls == 0) 823 continue; 824 first = 1; 825 len = 8; 826 for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) { 827 if (ks->ks_calls == 0) 828 continue; 829 if ((ks->ks_size & j) == 0) 830 continue; 831 name = kmemnames[i] ? kmemnames[i] : "undefined"; 832 len += 2 + strlen(name); 833 if (first) 834 printf("%8d %s", j, name); 835 else 836 printf(","); 837 if (len >= 80) { 838 printf("\n\t "); 839 len = 10 + strlen(name); 840 } 841 if (!first) 842 printf(" %s", name); 843 first = 0; 844 } 845 printf("\n"); 846 } 847 848 (void)printf( 849 "\nMemory statistics by type Type Kern\n"); 850 (void)printf( 851 " Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)\n"); 852 for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) { 853 if (ks->ks_calls == 0) 854 continue; 855 (void)printf("%12s%6ld%6ldK%7ldK%6ldK%9ld%5u%6u", 856 kmemnames[i] ? kmemnames[i] : "undefined", 857 ks->ks_inuse, (ks->ks_memuse + 1023) / 1024, 858 (ks->ks_maxused + 1023) / 1024, 859 (ks->ks_limit + 1023) / 1024, ks->ks_calls, 860 ks->ks_limblocks, ks->ks_mapblocks); 861 first = 1; 862 for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) { 863 if ((ks->ks_size & j) == 0) 864 continue; 865 if (first) 866 printf(" %d", j); 867 else 868 printf(",%d", j); 869 first = 0; 870 } 871 printf("\n"); 872 totuse += ks->ks_memuse; 873 totreq += ks->ks_calls; 874 } 875 (void)printf("\nMemory Totals: In Use Free Requests\n"); 876 (void)printf(" %7ldK %6ldK %8ld\n", 877 (totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq); 878 } 879 880 /* 881 * kread reads something from the kernel, given its nlist index. 882 */ 883 void 884 kread(nlx, addr, size) 885 int nlx; 886 void *addr; 887 size_t size; 888 { 889 char *sym; 890 891 if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) { 892 sym = namelist[nlx].n_name; 893 if (*sym == '_') 894 ++sym; 895 (void)fprintf(stderr, 896 "vmstat: symbol %s not defined\n", sym); 897 exit(1); 898 } 899 if (kvm_read(kd, namelist[nlx].n_value, addr, size) != size) { 900 sym = namelist[nlx].n_name; 901 if (*sym == '_') 902 ++sym; 903 (void)fprintf(stderr, "vmstat: %s: %s\n", sym, kvm_geterr(kd)); 904 exit(1); 905 } 906 } 907 908 void 909 usage() 910 { 911 (void)fprintf(stderr, 912 #ifndef NEWVM 913 "usage: vmstat [-fimst] [-c count] [-M core] \ 914 [-N system] [-w wait] [disks]\n"); 915 #else 916 "usage: vmstat [-ims] [-c count] [-M core] \ 917 [-N system] [-w wait] [disks]\n"); 918 #endif 919 exit(1); 920 } 921 922
Indexes created Tue Sep 23 21:09:50 GMT 2025