1 /* $NetBSD: vmstat.c,v 1.29.4.1 1996/06/05 00:21:05 cgd Exp $ */ 2 /* $OpenBSD: vmstat.c,v 1.139 2015/12/24 03:25:08 mmcc Exp $ */ 3 4 /* 5 * Copyright (c) 1980, 1986, 1991, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #include <sys/param.h> /* MAXCOMLEN */ 34 #include <sys/time.h> 35 #include <sys/proc.h> 36 #include <sys/namei.h> 37 #include <sys/malloc.h> 38 #include <sys/fcntl.h> 39 #include <sys/ioctl.h> 40 #include <sys/sysctl.h> 41 #include <sys/device.h> 42 #include <sys/pool.h> 43 #include <sys/sched.h> 44 #include <sys/vmmeter.h> 45 46 #include <time.h> 47 #include <nlist.h> 48 #include <kvm.h> 49 #include <err.h> 50 #include <errno.h> 51 #include <unistd.h> 52 #include <signal.h> 53 #include <stdio.h> 54 #include <ctype.h> 55 #include <stdlib.h> 56 #include <string.h> 57 #include <paths.h> 58 #include <limits.h> 59 #include "dkstats.h" 60 61 struct nlist namelist[] = { 62 #define X_UVMEXP 0 /* sysctl */ 63 { "_uvmexp" }, 64 #define X_TIME_UPTIME 1 65 { "_time_uptime" }, 66 #define X_NCHSTATS 2 /* sysctl */ 67 { "_nchstats" }, 68 #define X_KMEMSTAT 3 /* sysctl */ 69 { "_kmemstats" }, 70 #define X_KMEMBUCKETS 4 /* sysctl */ 71 { "_bucket" }, 72 #define X_FORKSTAT 5 /* sysctl */ 73 { "_forkstat" }, 74 #define X_NSELCOLL 6 /* sysctl */ 75 { "_nselcoll" }, 76 #define X_POOLHEAD 7 /* sysctl */ 77 { "_pool_head" }, 78 #define X_NAPTIME 8 79 { "_naptime" }, 80 { "" }, 81 }; 82 83 /* Objects defined in dkstats.c */ 84 extern struct _disk cur, last; 85 extern char **dr_name; 86 extern int *dk_select, dk_ndrive; 87 88 struct uvmexp uvmexp, ouvmexp; 89 int ndrives; 90 91 int winlines = 20; 92 93 kvm_t *kd; 94 95 #define FORKSTAT 0x01 96 #define INTRSTAT 0x02 97 #define MEMSTAT 0x04 98 #define SUMSTAT 0x08 99 #define TIMESTAT 0x10 100 #define VMSTAT 0x20 101 102 void cpustats(void); 103 time_t getuptime(void); 104 void dkstats(void); 105 void dointr(void); 106 void domem(void); 107 void dopool(void); 108 void dosum(void); 109 void dovmstat(u_int, int); 110 void kread(int, void *, size_t); 111 void usage(void); 112 void dotimes(void); 113 void doforkst(void); 114 void needhdr(int); 115 int pct(int64_t, int64_t); 116 void printhdr(void); 117 118 char **choosedrives(char **); 119 120 /* Namelist and memory file names. */ 121 char *nlistf, *memf; 122 123 extern char *__progname; 124 125 int verbose = 0; 126 int zflag = 0; 127 128 int 129 main(int argc, char *argv[]) 130 { 131 char errbuf[_POSIX2_LINE_MAX]; 132 int c, todo = 0, reps = 0; 133 const char *errstr; 134 u_int interval = 0; 135 136 while ((c = getopt(argc, argv, "c:fiM:mN:stw:vz")) != -1) { 137 switch (c) { 138 case 'c': 139 reps = strtonum(optarg, 0, INT_MAX, &errstr); 140 if (errstr) 141 errx(1, "-c %s: %s", optarg, errstr); 142 break; 143 case 'f': 144 todo |= FORKSTAT; 145 break; 146 case 'i': 147 todo |= INTRSTAT; 148 break; 149 case 'M': 150 memf = optarg; 151 break; 152 case 'm': 153 todo |= MEMSTAT; 154 break; 155 case 'N': 156 nlistf = optarg; 157 break; 158 case 's': 159 todo |= SUMSTAT; 160 break; 161 case 't': 162 todo |= TIMESTAT; 163 break; 164 case 'w': 165 interval = (u_int)strtonum(optarg, 0, 1000, &errstr); 166 if (errstr) 167 errx(1, "-w %s: %s", optarg, errstr); 168 break; 169 case 'v': 170 verbose = 1; 171 break; 172 case 'z': 173 zflag = 1; 174 break; 175 case '?': 176 default: 177 usage(); 178 } 179 } 180 argc -= optind; 181 argv += optind; 182 183 if (todo == 0) 184 todo = VMSTAT; 185 186 if (nlistf != NULL || memf != NULL) { 187 188 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf); 189 if (kd == 0) 190 errx(1, "kvm_openfiles: %s", errbuf); 191 192 if ((c = kvm_nlist(kd, namelist)) != 0) { 193 194 if (c > 0) { 195 (void)fprintf(stderr, 196 "%s: undefined symbols:", __progname); 197 for (c = 0; 198 c < sizeof(namelist)/sizeof(namelist[0]); 199 c++) 200 if (namelist[c].n_type == 0) 201 fprintf(stderr, " %s", 202 namelist[c].n_name); 203 (void)fputc('\n', stderr); 204 exit(1); 205 } else 206 errx(1, "kvm_nlist: %s", kvm_geterr(kd)); 207 } 208 } 209 210 if (todo & VMSTAT) { 211 struct winsize winsize; 212 213 dkinit(0); /* Initialize disk stats, no disks selected. */ 214 argv = choosedrives(argv); /* Select disks. */ 215 winsize.ws_row = 0; 216 (void) ioctl(STDOUT_FILENO, TIOCGWINSZ, &winsize); 217 if (winsize.ws_row > 0) 218 winlines = winsize.ws_row; 219 220 } 221 222 #define BACKWARD_COMPATIBILITY 223 #ifdef BACKWARD_COMPATIBILITY 224 if (*argv) { 225 interval = (u_int)strtonum(*argv, 0, 1000, &errstr); 226 if (errstr) 227 errx(1, "interval %s: %s", *argv, errstr); 228 229 if (*++argv) { 230 reps = strtonum(*argv, 0, INT_MAX, &errstr); 231 if (errstr) 232 errx(1, "reps %s: %s", *argv, errstr); 233 } 234 } 235 #endif 236 237 if (interval) { 238 if (!reps) 239 reps = -1; 240 } else if (reps) 241 interval = 1; 242 243 if (todo & FORKSTAT) 244 doforkst(); 245 if (todo & MEMSTAT) { 246 domem(); 247 dopool(); 248 } 249 if (todo & SUMSTAT) 250 dosum(); 251 if (todo & TIMESTAT) 252 dotimes(); 253 if (todo & INTRSTAT) 254 dointr(); 255 if (todo & VMSTAT) 256 dovmstat(interval, reps); 257 exit(0); 258 } 259 260 char ** 261 choosedrives(char **argv) 262 { 263 int i; 264 265 /* 266 * Choose drives to be displayed. Priority goes to (in order) drives 267 * supplied as arguments, default drives. If everything isn't filled 268 * in and there are drives not taken care of, display the first few 269 * that fit. 270 */ 271 #define BACKWARD_COMPATIBILITY 272 for (ndrives = 0; *argv; ++argv) { 273 #ifdef BACKWARD_COMPATIBILITY 274 if (isdigit((unsigned char)**argv)) 275 break; 276 #endif 277 for (i = 0; i < dk_ndrive; i++) { 278 if (strcmp(dr_name[i], *argv)) 279 continue; 280 dk_select[i] = 1; 281 ++ndrives; 282 break; 283 } 284 if (i == dk_ndrive) 285 errx(1, "invalid interval or drive name: %s", *argv); 286 } 287 for (i = 0; i < dk_ndrive && ndrives < 2; i++) { 288 if (dk_select[i]) 289 continue; 290 dk_select[i] = 1; 291 ++ndrives; 292 } 293 return(argv); 294 } 295 296 time_t 297 getuptime(void) 298 { 299 struct timespec uptime; 300 time_t time_uptime, naptime; 301 302 if (nlistf == NULL && memf == NULL) { 303 if (clock_gettime(CLOCK_UPTIME, &uptime) == -1) 304 err(1, "clock_gettime"); 305 return (uptime.tv_sec); 306 } 307 308 kread(X_NAPTIME, &naptime, sizeof(naptime)); 309 kread(X_TIME_UPTIME, &time_uptime, sizeof(time_uptime)); 310 return (time_uptime - naptime); 311 } 312 313 int hz; 314 volatile sig_atomic_t hdrcnt; 315 316 void 317 dovmstat(u_int interval, int reps) 318 { 319 time_t uptime, halfuptime; 320 struct clockinfo clkinfo; 321 struct vmtotal total; 322 size_t size; 323 int mib[2]; 324 325 uptime = getuptime(); 326 halfuptime = uptime / 2; 327 (void)signal(SIGCONT, needhdr); 328 329 mib[0] = CTL_KERN; 330 mib[1] = KERN_CLOCKRATE; 331 size = sizeof(clkinfo); 332 if (sysctl(mib, 2, &clkinfo, &size, NULL, 0) < 0) { 333 warn("could not read kern.clockrate"); 334 return; 335 } 336 hz = clkinfo.stathz; 337 338 for (hdrcnt = 1;;) { 339 /* Read new disk statistics */ 340 dkreadstats(); 341 if (!--hdrcnt || last.dk_ndrive != cur.dk_ndrive) 342 printhdr(); 343 if (nlistf == NULL && memf == NULL) { 344 size = sizeof(struct uvmexp); 345 mib[0] = CTL_VM; 346 mib[1] = VM_UVMEXP; 347 if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) { 348 warn("could not get vm.uvmexp"); 349 memset(&uvmexp, 0, sizeof(struct uvmexp)); 350 } 351 } else { 352 kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp)); 353 } 354 size = sizeof(total); 355 mib[0] = CTL_VM; 356 mib[1] = VM_METER; 357 if (sysctl(mib, 2, &total, &size, NULL, 0) < 0) { 358 warn("could not read vm.vmmeter"); 359 memset(&total, 0, sizeof(total)); 360 } 361 (void)printf(" %u %u %u ", 362 total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw); 363 #define rate(x) ((unsigned)((((unsigned)x) + halfuptime) / uptime)) /* round */ 364 #define pgtok(a) ((a) * ((unsigned int)uvmexp.pagesize >> 10)) 365 (void)printf("%6u %7u ", 366 pgtok(uvmexp.active + uvmexp.swpginuse), 367 pgtok(uvmexp.free)); 368 (void)printf("%4u ", rate(uvmexp.faults - ouvmexp.faults)); 369 (void)printf("%3u ", rate(uvmexp.pdreact - ouvmexp.pdreact)); 370 (void)printf("%3u ", rate(uvmexp.pageins - ouvmexp.pageins)); 371 (void)printf("%3u %3u ", 372 rate(uvmexp.pdpageouts - ouvmexp.pdpageouts), 0); 373 (void)printf("%3u ", rate(uvmexp.pdscans - ouvmexp.pdscans)); 374 dkstats(); 375 (void)printf("%4u %5u %4u ", 376 rate(uvmexp.intrs - ouvmexp.intrs), 377 rate(uvmexp.syscalls - ouvmexp.syscalls), 378 rate(uvmexp.swtch - ouvmexp.swtch)); 379 cpustats(); 380 (void)printf("\n"); 381 (void)fflush(stdout); 382 if (reps >= 0 && --reps <= 0) 383 break; 384 ouvmexp = uvmexp; 385 uptime = interval; 386 /* 387 * We round upward to avoid losing low-frequency events 388 * (i.e., >= 1 per interval but < 1 per second). 389 */ 390 halfuptime = uptime == 1 ? 0 : (uptime + 1) / 2; 391 (void)sleep(interval); 392 } 393 } 394 395 void 396 printhdr(void) 397 { 398 int i; 399 static int printedhdr; 400 401 if (printedhdr && !isatty(STDOUT_FILENO)) 402 return; 403 404 (void)printf(" procs memory page%*s", 20, ""); 405 if (ndrives > 0) 406 (void)printf("%s %*straps cpu\n", 407 ((ndrives > 1) ? "disks" : "disk"), 408 ((ndrives > 1) ? ndrives * 4 - 5 : 0), ""); 409 else 410 (void)printf("%*s traps cpu\n", 411 ndrives * 3, ""); 412 413 (void)printf(" r b w avm fre flt re pi po fr sr "); 414 for (i = 0; i < dk_ndrive; i++) 415 if (dk_select[i]) 416 (void)printf("%c%c%c ", dr_name[i][0], 417 dr_name[i][1], 418 dr_name[i][strlen(dr_name[i]) - 1]); 419 (void)printf(" int sys cs us sy id\n"); 420 hdrcnt = winlines - 2; 421 printedhdr = 1; 422 } 423 424 /* 425 * Force a header to be prepended to the next output. 426 */ 427 /* ARGSUSED */ 428 void 429 needhdr(int signo) 430 { 431 432 hdrcnt = 1; 433 } 434 435 void 436 dotimes(void) 437 { 438 u_int pgintime, rectime; 439 size_t size; 440 int mib[2]; 441 442 /* XXX Why are these set to 0 ? This doesn't look right. */ 443 pgintime = 0; 444 rectime = 0; 445 446 if (nlistf == NULL && memf == NULL) { 447 size = sizeof(struct uvmexp); 448 mib[0] = CTL_VM; 449 mib[1] = VM_UVMEXP; 450 if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) { 451 warn("could not read vm.uvmexp"); 452 memset(&uvmexp, 0, sizeof(struct uvmexp)); 453 } 454 } else { 455 kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp)); 456 } 457 458 (void)printf("%u reactivates, %u total time (usec)\n", 459 uvmexp.pdreact, rectime); 460 if (uvmexp.pdreact != 0) 461 (void)printf("average: %u usec / reclaim\n", 462 rectime / uvmexp.pdreact); 463 (void)printf("\n"); 464 (void)printf("%u page ins, %u total time (msec)\n", 465 uvmexp.pageins, pgintime / 10); 466 if (uvmexp.pageins != 0) 467 (void)printf("average: %8.1f msec / page in\n", 468 pgintime / (uvmexp.pageins * 10.0)); 469 } 470 471 int 472 pct(int64_t top, int64_t bot) 473 { 474 int ans; 475 476 if (bot == 0) 477 return(0); 478 ans = top * 100 / bot; 479 return (ans); 480 } 481 482 void 483 dosum(void) 484 { 485 struct nchstats nchstats; 486 int mib[2], nselcoll; 487 long long nchtotal; 488 size_t size; 489 490 if (nlistf == NULL && memf == NULL) { 491 size = sizeof(struct uvmexp); 492 mib[0] = CTL_VM; 493 mib[1] = VM_UVMEXP; 494 if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) { 495 warn("could not read vm.uvmexp"); 496 memset(&uvmexp, 0, sizeof(struct uvmexp)); 497 } 498 } else { 499 kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp)); 500 } 501 502 /* vm_page constants */ 503 (void)printf("%11u bytes per page\n", uvmexp.pagesize); 504 505 /* vm_page counters */ 506 (void)printf("%11u pages managed\n", uvmexp.npages); 507 (void)printf("%11u pages free\n", uvmexp.free); 508 (void)printf("%11u pages active\n", uvmexp.active); 509 (void)printf("%11u pages inactive\n", uvmexp.inactive); 510 (void)printf("%11u pages being paged out\n", uvmexp.paging); 511 (void)printf("%11u pages wired\n", uvmexp.wired); 512 (void)printf("%11u pages zeroed\n", uvmexp.zeropages); 513 (void)printf("%11u pages reserved for pagedaemon\n", 514 uvmexp.reserve_pagedaemon); 515 (void)printf("%11u pages reserved for kernel\n", 516 uvmexp.reserve_kernel); 517 518 /* swap */ 519 (void)printf("%11u swap pages\n", uvmexp.swpages); 520 (void)printf("%11u swap pages in use\n", uvmexp.swpginuse); 521 (void)printf("%11u total anon's in system\n", uvmexp.nanon); 522 (void)printf("%11u free anon's\n", uvmexp.nfreeanon); 523 524 /* stat counters */ 525 (void)printf("%11u page faults\n", uvmexp.faults); 526 (void)printf("%11u traps\n", uvmexp.traps); 527 (void)printf("%11u interrupts\n", uvmexp.intrs); 528 (void)printf("%11u cpu context switches\n", uvmexp.swtch); 529 (void)printf("%11u fpu context switches\n", uvmexp.fpswtch); 530 (void)printf("%11u software interrupts\n", uvmexp.softs); 531 (void)printf("%11u syscalls\n", uvmexp.syscalls); 532 (void)printf("%11u pagein operations\n", uvmexp.pageins); 533 (void)printf("%11u forks\n", uvmexp.forks); 534 (void)printf("%11u forks where vmspace is shared\n", 535 uvmexp.forks_sharevm); 536 (void)printf("%11u kernel map entries\n", uvmexp.kmapent); 537 (void)printf("%11u zeroed page hits\n", uvmexp.pga_zerohit); 538 (void)printf("%11u zeroed page misses\n", uvmexp.pga_zeromiss); 539 540 /* daemon counters */ 541 (void)printf("%11u number of times the pagedaemon woke up\n", 542 uvmexp.pdwoke); 543 (void)printf("%11u revolutions of the clock hand\n", uvmexp.pdrevs); 544 (void)printf("%11u pages freed by pagedaemon\n", uvmexp.pdfreed); 545 (void)printf("%11u pages scanned by pagedaemon\n", uvmexp.pdscans); 546 (void)printf("%11u pages reactivated by pagedaemon\n", uvmexp.pdreact); 547 (void)printf("%11u busy pages found by pagedaemon\n", uvmexp.pdbusy); 548 549 if (nlistf == NULL && memf == NULL) { 550 size = sizeof(nchstats); 551 mib[0] = CTL_KERN; 552 mib[1] = KERN_NCHSTATS; 553 if (sysctl(mib, 2, &nchstats, &size, NULL, 0) < 0) { 554 warn("could not read kern.nchstats"); 555 memset(&nchstats, 0, sizeof(nchstats)); 556 } 557 } else { 558 kread(X_NCHSTATS, &nchstats, sizeof(nchstats)); 559 } 560 561 nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits + 562 nchstats.ncs_badhits + nchstats.ncs_falsehits + 563 nchstats.ncs_miss + nchstats.ncs_long; 564 (void)printf("%11lld total name lookups\n", nchtotal); 565 (void)printf("%11s cache hits (%d%% pos + %d%% neg) system %d%% " 566 "per-directory\n", 567 "", pct(nchstats.ncs_goodhits, nchtotal), 568 pct(nchstats.ncs_neghits, nchtotal), 569 pct(nchstats.ncs_pass2, nchtotal)); 570 (void)printf("%11s deletions %d%%, falsehits %d%%, toolong %d%%\n", "", 571 pct(nchstats.ncs_badhits, nchtotal), 572 pct(nchstats.ncs_falsehits, nchtotal), 573 pct(nchstats.ncs_long, nchtotal)); 574 575 if (nlistf == NULL && memf == NULL) { 576 size = sizeof(nselcoll); 577 mib[0] = CTL_KERN; 578 mib[1] = KERN_NSELCOLL; 579 if (sysctl(mib, 2, &nselcoll, &size, NULL, 0) < 0) { 580 warn("could not read kern.nselcoll"); 581 nselcoll = 0; 582 } 583 } else { 584 kread(X_NSELCOLL, &nselcoll, sizeof(nselcoll)); 585 } 586 (void)printf("%11d select collisions\n", nselcoll); 587 } 588 589 void 590 doforkst(void) 591 { 592 struct forkstat fks; 593 size_t size; 594 int mib[2]; 595 596 if (nlistf == NULL && memf == NULL) { 597 size = sizeof(struct forkstat); 598 mib[0] = CTL_KERN; 599 mib[1] = KERN_FORKSTAT; 600 if (sysctl(mib, 2, &fks, &size, NULL, 0) < 0) { 601 warn("could not read kern.forkstat"); 602 memset(&fks, 0, sizeof(struct forkstat)); 603 } 604 } else { 605 kread(X_FORKSTAT, &fks, sizeof(struct forkstat)); 606 } 607 608 (void)printf("%d forks, %d pages, average %.2f\n", 609 fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork); 610 (void)printf("%d vforks, %d pages, average %.2f\n", 611 fks.cntvfork, fks.sizvfork, 612 (double)fks.sizvfork / (fks.cntvfork ? fks.cntvfork : 1)); 613 (void)printf("%d __tforks, %d pages, average %.2f\n", 614 fks.cnttfork, fks.siztfork, 615 (double)fks.siztfork / (fks.cnttfork ? fks.cnttfork : 1)); 616 (void)printf("%d kthread creations, %d pages, average %.2f\n", 617 fks.cntkthread, fks.sizkthread, 618 (double)fks.sizkthread / (fks.cntkthread ? fks.cntkthread : 1)); 619 } 620 621 void 622 dkstats(void) 623 { 624 int dn, state; 625 double etime; 626 627 /* Calculate disk stat deltas. */ 628 dkswap(); 629 etime = 0; 630 for (state = 0; state < CPUSTATES; ++state) { 631 etime += cur.cp_time[state]; 632 } 633 if (etime == 0) 634 etime = 1; 635 etime /= hz; 636 for (dn = 0; dn < dk_ndrive; ++dn) { 637 if (!dk_select[dn]) 638 continue; 639 (void)printf("%3.0f ", 640 (cur.dk_rxfer[dn] + cur.dk_rxfer[dn]) / etime); 641 } 642 } 643 644 void 645 cpustats(void) 646 { 647 double percent, total; 648 int state; 649 650 total = 0; 651 for (state = 0; state < CPUSTATES; ++state) 652 total += cur.cp_time[state]; 653 if (total) 654 percent = 100 / total; 655 else 656 percent = 0; 657 (void)printf("%2.0f ", (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * percent); 658 (void)printf("%2.0f ", (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * percent); 659 (void)printf("%2.0f", cur.cp_time[CP_IDLE] * percent); 660 } 661 662 void 663 dointr(void) 664 { 665 int nintr, mib[4], i; 666 char intrname[128]; 667 u_int64_t inttotal; 668 time_t uptime; 669 size_t siz; 670 671 if (nlistf != NULL || memf != NULL) { 672 errx(1, 673 "interrupt statistics are only available on live kernels"); 674 } 675 676 uptime = getuptime(); 677 678 mib[0] = CTL_KERN; 679 mib[1] = KERN_INTRCNT; 680 mib[2] = KERN_INTRCNT_NUM; 681 siz = sizeof(nintr); 682 if (sysctl(mib, 3, &nintr, &siz, NULL, 0) < 0) { 683 warnx("could not read kern.intrcnt.nintrcnt"); 684 return; 685 } 686 687 (void)printf("%-16s %20s %8s\n", "interrupt", "total", "rate"); 688 689 inttotal = 0; 690 for (i = 0; i < nintr; i++) { 691 char name[128]; 692 u_quad_t cnt; 693 int vector; 694 695 mib[0] = CTL_KERN; 696 mib[1] = KERN_INTRCNT; 697 mib[2] = KERN_INTRCNT_NAME; 698 mib[3] = i; 699 siz = sizeof(name); 700 if (sysctl(mib, 4, name, &siz, NULL, 0) < 0) { 701 warnx("could not read kern.intrcnt.name.%d", i); 702 return; 703 } 704 705 mib[0] = CTL_KERN; 706 mib[1] = KERN_INTRCNT; 707 mib[2] = KERN_INTRCNT_VECTOR; 708 mib[3] = i; 709 siz = sizeof(vector); 710 if (sysctl(mib, 4, &vector, &siz, NULL, 0) < 0) { 711 strlcpy(intrname, name, sizeof(intrname)); 712 } else { 713 snprintf(intrname, sizeof(intrname), "irq%d/%s", 714 vector, name); 715 } 716 717 mib[0] = CTL_KERN; 718 mib[1] = KERN_INTRCNT; 719 mib[2] = KERN_INTRCNT_CNT; 720 mib[3] = i; 721 siz = sizeof(cnt); 722 if (sysctl(mib, 4, &cnt, &siz, NULL, 0) < 0) { 723 warnx("could not read kern.intrcnt.cnt.%d", i); 724 return; 725 } 726 727 if (cnt || zflag) 728 (void)printf("%-16.16s %20llu %8llu\n", intrname, 729 cnt, cnt / uptime); 730 inttotal += cnt; 731 } 732 733 (void)printf("%-16s %20llu %8llu\n", "Total", inttotal, 734 inttotal / uptime); 735 } 736 737 /* 738 * These names are defined in <sys/malloc.h>. 739 */ 740 const char *kmemnames[] = INITKMEMNAMES; 741 742 void 743 domem(void) 744 { 745 struct kmembuckets buckets[MINBUCKET + 16], *kp; 746 struct kmemstats kmemstats[M_LAST], *ks; 747 int i, j, len, size, first, mib[4]; 748 u_long totuse = 0, totfree = 0; 749 char buf[BUFSIZ], *bufp, *ap; 750 quad_t totreq = 0; 751 const char *name; 752 size_t siz; 753 754 if (memf == NULL && nlistf == NULL) { 755 mib[0] = CTL_KERN; 756 mib[1] = KERN_MALLOCSTATS; 757 mib[2] = KERN_MALLOC_BUCKETS; 758 siz = sizeof(buf); 759 if (sysctl(mib, 3, buf, &siz, NULL, 0) < 0) { 760 warnx("could not read kern.malloc.buckets"); 761 return; 762 } 763 764 bufp = buf; 765 mib[2] = KERN_MALLOC_BUCKET; 766 siz = sizeof(struct kmembuckets); 767 i = 0; 768 while ((ap = strsep(&bufp, ",")) != NULL) { 769 const char *errstr; 770 771 mib[3] = strtonum(ap, 0, INT_MAX, &errstr); 772 if (errstr) { 773 warnx("kernel lied about %d being a number", mib[3]); 774 return; 775 } 776 777 if (sysctl(mib, 4, &buckets[MINBUCKET + i], &siz, 778 NULL, 0) < 0) { 779 warn("could not read kern.malloc.bucket.%d", mib[3]); 780 return; 781 } 782 i++; 783 } 784 } else { 785 kread(X_KMEMBUCKETS, buckets, sizeof(buckets)); 786 } 787 788 for (first = 1, i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16; 789 i++, kp++) { 790 if (kp->kb_calls == 0 && !verbose) 791 continue; 792 if (first) { 793 (void)printf("Memory statistics by bucket size\n"); 794 (void)printf( 795 " Size In Use Free Requests HighWater Couldfree\n"); 796 first = 0; 797 } 798 size = 1 << i; 799 (void)printf("%8d %8llu %6llu %18llu %7llu %10llu\n", size, 800 (unsigned long long)(kp->kb_total - kp->kb_totalfree), 801 (unsigned long long)kp->kb_totalfree, 802 (unsigned long long)kp->kb_calls, 803 (unsigned long long)kp->kb_highwat, 804 (unsigned long long)kp->kb_couldfree); 805 totfree += size * kp->kb_totalfree; 806 } 807 808 /* 809 * If kmem statistics are not being gathered by the kernel, 810 * first will still be 1. 811 */ 812 if (first) { 813 printf( 814 "Kmem statistics are not being gathered by the kernel.\n"); 815 return; 816 } 817 818 if (memf == NULL && nlistf == NULL) { 819 memset(kmemstats, 0, sizeof(kmemstats)); 820 for (i = 0; i < M_LAST; i++) { 821 mib[0] = CTL_KERN; 822 mib[1] = KERN_MALLOCSTATS; 823 mib[2] = KERN_MALLOC_KMEMSTATS; 824 mib[3] = i; 825 siz = sizeof(struct kmemstats); 826 827 /* 828 * Skip errors -- these are presumed to be unallocated 829 * entries. 830 */ 831 if (sysctl(mib, 4, &kmemstats[i], &siz, NULL, 0) < 0) 832 continue; 833 } 834 } else { 835 kread(X_KMEMSTAT, kmemstats, sizeof(kmemstats)); 836 } 837 838 (void)printf("\nMemory usage type by bucket size\n"); 839 (void)printf(" Size Type(s)\n"); 840 kp = &buckets[MINBUCKET]; 841 for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) { 842 if (kp->kb_calls == 0) 843 continue; 844 first = 1; 845 len = 8; 846 for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) { 847 if (ks->ks_calls == 0) 848 continue; 849 if ((ks->ks_size & j) == 0) 850 continue; 851 name = kmemnames[i] ? kmemnames[i] : "undefined"; 852 len += 2 + strlen(name); 853 if (first) 854 printf("%8d %s", j, name); 855 else 856 printf(","); 857 if (len >= 80) { 858 printf("\n\t "); 859 len = 10 + strlen(name); 860 } 861 if (!first) 862 printf(" %s", name); 863 first = 0; 864 } 865 printf("\n"); 866 } 867 868 (void)printf( 869 "\nMemory statistics by type Type Kern\n"); 870 (void)printf( 871 " Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)\n"); 872 for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) { 873 if (ks->ks_calls == 0) 874 continue; 875 (void)printf("%14s%6ld%6ldK%7ldK%6ldK%9ld%5u%6u", 876 kmemnames[i] ? kmemnames[i] : "undefined", 877 ks->ks_inuse, (ks->ks_memuse + 1023) / 1024, 878 (ks->ks_maxused + 1023) / 1024, 879 (ks->ks_limit + 1023) / 1024, ks->ks_calls, 880 ks->ks_limblocks, ks->ks_mapblocks); 881 first = 1; 882 for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) { 883 if ((ks->ks_size & j) == 0) 884 continue; 885 if (first) 886 printf(" %d", j); 887 else 888 printf(",%d", j); 889 first = 0; 890 } 891 printf("\n"); 892 totuse += ks->ks_memuse; 893 totreq += ks->ks_calls; 894 } 895 (void)printf("\nMemory Totals: In Use Free Requests\n"); 896 (void)printf(" %7luK %6luK %8qu\n", 897 (totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq); 898 } 899 900 static void 901 print_pool(struct kinfo_pool *pp, char *name) 902 { 903 static int first = 1; 904 char maxp[32]; 905 int ovflw; 906 907 if (first) { 908 (void)printf("Memory resource pool statistics\n"); 909 (void)printf( 910 "%-11s%5s%9s%5s%9s%6s%6s%6s%6s%6s%6s%5s\n", 911 "Name", 912 "Size", 913 "Requests", 914 "Fail", 915 "InUse", 916 "Pgreq", 917 "Pgrel", 918 "Npage", 919 "Hiwat", 920 "Minpg", 921 "Maxpg", 922 "Idle"); 923 first = 0; 924 } 925 926 /* Skip unused pools unless verbose output. */ 927 if (pp->pr_nget == 0 && !verbose) 928 return; 929 930 if (pp->pr_maxpages == UINT_MAX) 931 snprintf(maxp, sizeof maxp, "inf"); 932 else 933 snprintf(maxp, sizeof maxp, "%u", pp->pr_maxpages); 934 /* 935 * Print single word. `ovflow' is number of characters didn't fit 936 * on the last word. `fmt' is a format string to print this word. 937 * It must contain asterisk for field width. `width' is a width 938 * occupied by this word. `fixed' is a number of constant chars in 939 * `fmt'. `val' is a value to be printed using format string `fmt'. 940 */ 941 #define PRWORD(ovflw, fmt, width, fixed, val) do { \ 942 (ovflw) += printf((fmt), \ 943 (width) - (fixed) - (ovflw) > 0 ? \ 944 (width) - (fixed) - (ovflw) : 0, \ 945 (val)) - (width); \ 946 if ((ovflw) < 0) \ 947 (ovflw) = 0; \ 948 } while (/* CONSTCOND */0) 949 950 ovflw = 0; 951 PRWORD(ovflw, "%-*s", 11, 0, name); 952 PRWORD(ovflw, " %*u", 5, 1, pp->pr_size); 953 PRWORD(ovflw, " %*lu", 9, 1, pp->pr_nget); 954 PRWORD(ovflw, " %*lu", 5, 1, pp->pr_nfail); 955 PRWORD(ovflw, " %*lu", 9, 1, pp->pr_nget - pp->pr_nput); 956 PRWORD(ovflw, " %*lu", 6, 1, pp->pr_npagealloc); 957 PRWORD(ovflw, " %*lu", 6, 1, pp->pr_npagefree); 958 PRWORD(ovflw, " %*d", 6, 1, pp->pr_npages); 959 PRWORD(ovflw, " %*d", 6, 1, pp->pr_hiwat); 960 PRWORD(ovflw, " %*d", 6, 1, pp->pr_minpages); 961 PRWORD(ovflw, " %*s", 6, 1, maxp); 962 PRWORD(ovflw, " %*lu\n", 5, 1, pp->pr_nidle); 963 } 964 965 static void dopool_kvm(void); 966 static void dopool_sysctl(void); 967 968 void 969 dopool(void) 970 { 971 if (nlistf == NULL && memf == NULL) 972 dopool_sysctl(); 973 else 974 dopool_kvm(); 975 } 976 977 void 978 dopool_sysctl(void) 979 { 980 int mib[4], npools, i; 981 long total = 0, inuse = 0; 982 struct kinfo_pool pool; 983 size_t size; 984 985 mib[0] = CTL_KERN; 986 mib[1] = KERN_POOL; 987 mib[2] = KERN_POOL_NPOOLS; 988 size = sizeof(npools); 989 if (sysctl(mib, 3, &npools, &size, NULL, 0) < 0) { 990 warn("can't figure out number of pools in kernel"); 991 return; 992 } 993 994 for (i = 1; npools; i++) { 995 char name[32]; 996 997 mib[0] = CTL_KERN; 998 mib[1] = KERN_POOL; 999 mib[2] = KERN_POOL_POOL; 1000 mib[3] = i; 1001 size = sizeof(pool); 1002 if (sysctl(mib, 4, &pool, &size, NULL, 0) < 0) { 1003 if (errno == ENOENT) 1004 continue; 1005 warn("error getting pool"); 1006 return; 1007 } 1008 npools--; 1009 mib[2] = KERN_POOL_NAME; 1010 size = sizeof(name); 1011 if (sysctl(mib, 4, &name, &size, NULL, 0) < 0) { 1012 warn("error getting pool name"); 1013 return; 1014 } 1015 print_pool(&pool, name); 1016 1017 inuse += (pool.pr_nget - pool.pr_nput) * pool.pr_size; 1018 total += pool.pr_npages * pool.pr_pgsize; 1019 } 1020 1021 inuse /= 1024; 1022 total /= 1024; 1023 printf("\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n", 1024 inuse, total, (double)(100 * inuse) / total); 1025 } 1026 1027 void 1028 dopool_kvm(void) 1029 { 1030 SIMPLEQ_HEAD(,pool) pool_head; 1031 struct pool pool, *pp = &pool; 1032 struct kinfo_pool pi; 1033 long total = 0, inuse = 0; 1034 u_long addr; 1035 1036 kread(X_POOLHEAD, &pool_head, sizeof(pool_head)); 1037 addr = (u_long)SIMPLEQ_FIRST(&pool_head); 1038 1039 while (addr != 0) { 1040 char name[32]; 1041 1042 if (kvm_read(kd, addr, (void *)pp, sizeof *pp) != sizeof *pp) { 1043 (void)fprintf(stderr, 1044 "vmstat: pool chain trashed: %s\n", 1045 kvm_geterr(kd)); 1046 exit(1); 1047 } 1048 if (kvm_read(kd, (u_long)pp->pr_wchan, name, sizeof name) < 0) { 1049 (void)fprintf(stderr, 1050 "vmstat: pool name trashed: %s\n", 1051 kvm_geterr(kd)); 1052 exit(1); 1053 } 1054 name[31] = '\0'; 1055 1056 memset(&pi, 0, sizeof(pi)); 1057 pi.pr_size = pp->pr_size; 1058 pi.pr_pgsize = pp->pr_pgsize; 1059 pi.pr_itemsperpage = pp->pr_itemsperpage; 1060 pi.pr_npages = pp->pr_npages; 1061 pi.pr_minpages = pp->pr_minpages; 1062 pi.pr_maxpages = pp->pr_maxpages; 1063 pi.pr_hardlimit = pp->pr_hardlimit; 1064 pi.pr_nout = pp->pr_nout; 1065 pi.pr_nitems = pp->pr_nitems; 1066 pi.pr_nget = pp->pr_nget; 1067 pi.pr_nput = pp->pr_nput; 1068 pi.pr_nfail = pp->pr_nfail; 1069 pi.pr_npagealloc = pp->pr_npagealloc; 1070 pi.pr_npagefree = pp->pr_npagefree; 1071 pi.pr_hiwat = pp->pr_hiwat; 1072 pi.pr_nidle = pp->pr_nidle; 1073 1074 print_pool(&pi, name); 1075 1076 inuse += (pi.pr_nget - pi.pr_nput) * pi.pr_size; 1077 total += pi.pr_npages * pi.pr_pgsize; 1078 1079 addr = (u_long)SIMPLEQ_NEXT(pp, pr_poollist); 1080 } 1081 1082 inuse /= 1024; 1083 total /= 1024; 1084 printf("\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n", 1085 inuse, total, (double)(100 * inuse) / total); 1086 } 1087 1088 /* 1089 * kread reads something from the kernel, given its nlist index. 1090 */ 1091 void 1092 kread(int nlx, void *addr, size_t size) 1093 { 1094 char *sym; 1095 1096 if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) { 1097 sym = namelist[nlx].n_name; 1098 if (*sym == '_') 1099 ++sym; 1100 errx(1, "symbol %s not defined", sym); 1101 } 1102 if (kvm_read(kd, namelist[nlx].n_value, addr, size) != size) { 1103 sym = namelist[nlx].n_name; 1104 if (*sym == '_') 1105 ++sym; 1106 errx(1, "%s: %s", sym, kvm_geterr(kd)); 1107 } 1108 } 1109 1110 void 1111 usage(void) 1112 { 1113 (void)fprintf(stderr, "usage: %s [-fimstvz] [-c count] [-M core] " 1114 "[-N system] [-w wait] [disk ...]\n", __progname); 1115 exit(1); 1116 } 1117