1 /* $NetBSD: vmstat.c,v 1.29.4.1 1996/06/05 00:21:05 cgd Exp $ */ 2 /* $OpenBSD: vmstat.c,v 1.141 2016/08/14 22:47:26 guenther 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 void 428 needhdr(__unused int signo) 429 { 430 431 hdrcnt = 1; 432 } 433 434 void 435 dotimes(void) 436 { 437 u_int pgintime, rectime; 438 size_t size; 439 int mib[2]; 440 441 /* XXX Why are these set to 0 ? This doesn't look right. */ 442 pgintime = 0; 443 rectime = 0; 444 445 if (nlistf == NULL && memf == NULL) { 446 size = sizeof(struct uvmexp); 447 mib[0] = CTL_VM; 448 mib[1] = VM_UVMEXP; 449 if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) { 450 warn("could not read vm.uvmexp"); 451 memset(&uvmexp, 0, sizeof(struct uvmexp)); 452 } 453 } else { 454 kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp)); 455 } 456 457 (void)printf("%u reactivates, %u total time (usec)\n", 458 uvmexp.pdreact, rectime); 459 if (uvmexp.pdreact != 0) 460 (void)printf("average: %u usec / reclaim\n", 461 rectime / uvmexp.pdreact); 462 (void)printf("\n"); 463 (void)printf("%u page ins, %u total time (msec)\n", 464 uvmexp.pageins, pgintime / 10); 465 if (uvmexp.pageins != 0) 466 (void)printf("average: %8.1f msec / page in\n", 467 pgintime / (uvmexp.pageins * 10.0)); 468 } 469 470 int 471 pct(int64_t top, int64_t bot) 472 { 473 int ans; 474 475 if (bot == 0) 476 return(0); 477 ans = top * 100 / bot; 478 return (ans); 479 } 480 481 void 482 dosum(void) 483 { 484 struct nchstats nchstats; 485 int mib[2], nselcoll; 486 long long nchtotal; 487 size_t size; 488 489 if (nlistf == NULL && memf == NULL) { 490 size = sizeof(struct uvmexp); 491 mib[0] = CTL_VM; 492 mib[1] = VM_UVMEXP; 493 if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) { 494 warn("could not read vm.uvmexp"); 495 memset(&uvmexp, 0, sizeof(struct uvmexp)); 496 } 497 } else { 498 kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp)); 499 } 500 501 /* vm_page constants */ 502 (void)printf("%11u bytes per page\n", uvmexp.pagesize); 503 504 /* vm_page counters */ 505 (void)printf("%11u pages managed\n", uvmexp.npages); 506 (void)printf("%11u pages free\n", uvmexp.free); 507 (void)printf("%11u pages active\n", uvmexp.active); 508 (void)printf("%11u pages inactive\n", uvmexp.inactive); 509 (void)printf("%11u pages being paged out\n", uvmexp.paging); 510 (void)printf("%11u pages wired\n", uvmexp.wired); 511 (void)printf("%11u pages zeroed\n", uvmexp.zeropages); 512 (void)printf("%11u pages reserved for pagedaemon\n", 513 uvmexp.reserve_pagedaemon); 514 (void)printf("%11u pages reserved for kernel\n", 515 uvmexp.reserve_kernel); 516 517 /* swap */ 518 (void)printf("%11u swap pages\n", uvmexp.swpages); 519 (void)printf("%11u swap pages in use\n", uvmexp.swpginuse); 520 (void)printf("%11u total anon's in system\n", uvmexp.nanon); 521 (void)printf("%11u free anon's\n", uvmexp.nfreeanon); 522 523 /* stat counters */ 524 (void)printf("%11u page faults\n", uvmexp.faults); 525 (void)printf("%11u traps\n", uvmexp.traps); 526 (void)printf("%11u interrupts\n", uvmexp.intrs); 527 (void)printf("%11u cpu context switches\n", uvmexp.swtch); 528 (void)printf("%11u fpu context switches\n", uvmexp.fpswtch); 529 (void)printf("%11u software interrupts\n", uvmexp.softs); 530 (void)printf("%11u syscalls\n", uvmexp.syscalls); 531 (void)printf("%11u pagein operations\n", uvmexp.pageins); 532 (void)printf("%11u forks\n", uvmexp.forks); 533 (void)printf("%11u forks where vmspace is shared\n", 534 uvmexp.forks_sharevm); 535 (void)printf("%11u kernel map entries\n", uvmexp.kmapent); 536 (void)printf("%11u zeroed page hits\n", uvmexp.pga_zerohit); 537 (void)printf("%11u zeroed page misses\n", uvmexp.pga_zeromiss); 538 539 /* daemon counters */ 540 (void)printf("%11u number of times the pagedaemon woke up\n", 541 uvmexp.pdwoke); 542 (void)printf("%11u revolutions of the clock hand\n", uvmexp.pdrevs); 543 (void)printf("%11u pages freed by pagedaemon\n", uvmexp.pdfreed); 544 (void)printf("%11u pages scanned by pagedaemon\n", uvmexp.pdscans); 545 (void)printf("%11u pages reactivated by pagedaemon\n", uvmexp.pdreact); 546 (void)printf("%11u busy pages found by pagedaemon\n", uvmexp.pdbusy); 547 548 if (nlistf == NULL && memf == NULL) { 549 size = sizeof(nchstats); 550 mib[0] = CTL_KERN; 551 mib[1] = KERN_NCHSTATS; 552 if (sysctl(mib, 2, &nchstats, &size, NULL, 0) < 0) { 553 warn("could not read kern.nchstats"); 554 memset(&nchstats, 0, sizeof(nchstats)); 555 } 556 } else { 557 kread(X_NCHSTATS, &nchstats, sizeof(nchstats)); 558 } 559 560 nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits + 561 nchstats.ncs_badhits + nchstats.ncs_falsehits + 562 nchstats.ncs_miss + nchstats.ncs_long; 563 (void)printf("%11lld total name lookups\n", nchtotal); 564 (void)printf("%11s cache hits (%d%% pos + %d%% neg) system %d%% " 565 "per-directory\n", 566 "", pct(nchstats.ncs_goodhits, nchtotal), 567 pct(nchstats.ncs_neghits, nchtotal), 568 pct(nchstats.ncs_pass2, nchtotal)); 569 (void)printf("%11s deletions %d%%, falsehits %d%%, toolong %d%%\n", "", 570 pct(nchstats.ncs_badhits, nchtotal), 571 pct(nchstats.ncs_falsehits, nchtotal), 572 pct(nchstats.ncs_long, nchtotal)); 573 574 if (nlistf == NULL && memf == NULL) { 575 size = sizeof(nselcoll); 576 mib[0] = CTL_KERN; 577 mib[1] = KERN_NSELCOLL; 578 if (sysctl(mib, 2, &nselcoll, &size, NULL, 0) < 0) { 579 warn("could not read kern.nselcoll"); 580 nselcoll = 0; 581 } 582 } else { 583 kread(X_NSELCOLL, &nselcoll, sizeof(nselcoll)); 584 } 585 (void)printf("%11d select collisions\n", nselcoll); 586 } 587 588 void 589 doforkst(void) 590 { 591 struct forkstat fks; 592 size_t size; 593 int mib[2]; 594 595 if (nlistf == NULL && memf == NULL) { 596 size = sizeof(struct forkstat); 597 mib[0] = CTL_KERN; 598 mib[1] = KERN_FORKSTAT; 599 if (sysctl(mib, 2, &fks, &size, NULL, 0) < 0) { 600 warn("could not read kern.forkstat"); 601 memset(&fks, 0, sizeof(struct forkstat)); 602 } 603 } else { 604 kread(X_FORKSTAT, &fks, sizeof(struct forkstat)); 605 } 606 607 (void)printf("%u forks, %llu pages, average %.2f\n", 608 fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork); 609 (void)printf("%u vforks, %llu pages, average %.2f\n", 610 fks.cntvfork, fks.sizvfork, 611 (double)fks.sizvfork / (fks.cntvfork ? fks.cntvfork : 1)); 612 (void)printf("%u __tforks, %llu pages, average %.2f\n", 613 fks.cnttfork, fks.siztfork, 614 (double)fks.siztfork / (fks.cnttfork ? fks.cnttfork : 1)); 615 (void)printf("%u kthread creations, %llu pages, average %.2f\n", 616 fks.cntkthread, fks.sizkthread, 617 (double)fks.sizkthread / (fks.cntkthread ? fks.cntkthread : 1)); 618 } 619 620 void 621 dkstats(void) 622 { 623 int dn, state; 624 double etime; 625 626 /* Calculate disk stat deltas. */ 627 dkswap(); 628 etime = 0; 629 for (state = 0; state < CPUSTATES; ++state) { 630 etime += cur.cp_time[state]; 631 } 632 if (etime == 0) 633 etime = 1; 634 etime /= hz; 635 for (dn = 0; dn < dk_ndrive; ++dn) { 636 if (!dk_select[dn]) 637 continue; 638 (void)printf("%3.0f ", 639 (cur.dk_rxfer[dn] + cur.dk_rxfer[dn]) / etime); 640 } 641 } 642 643 void 644 cpustats(void) 645 { 646 double percent, total; 647 int state; 648 649 total = 0; 650 for (state = 0; state < CPUSTATES; ++state) 651 total += cur.cp_time[state]; 652 if (total) 653 percent = 100 / total; 654 else 655 percent = 0; 656 (void)printf("%2.0f ", (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * percent); 657 (void)printf("%2.0f ", (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * percent); 658 (void)printf("%2.0f", cur.cp_time[CP_IDLE] * percent); 659 } 660 661 void 662 dointr(void) 663 { 664 int nintr, mib[4], i; 665 char intrname[128]; 666 u_int64_t inttotal; 667 time_t uptime; 668 size_t siz; 669 670 if (nlistf != NULL || memf != NULL) { 671 errx(1, 672 "interrupt statistics are only available on live kernels"); 673 } 674 675 uptime = getuptime(); 676 677 mib[0] = CTL_KERN; 678 mib[1] = KERN_INTRCNT; 679 mib[2] = KERN_INTRCNT_NUM; 680 siz = sizeof(nintr); 681 if (sysctl(mib, 3, &nintr, &siz, NULL, 0) < 0) { 682 warnx("could not read kern.intrcnt.nintrcnt"); 683 return; 684 } 685 686 (void)printf("%-16s %20s %8s\n", "interrupt", "total", "rate"); 687 688 inttotal = 0; 689 for (i = 0; i < nintr; i++) { 690 char name[128]; 691 uint64_t cnt; 692 int vector; 693 694 mib[0] = CTL_KERN; 695 mib[1] = KERN_INTRCNT; 696 mib[2] = KERN_INTRCNT_NAME; 697 mib[3] = i; 698 siz = sizeof(name); 699 if (sysctl(mib, 4, name, &siz, NULL, 0) < 0) { 700 warnx("could not read kern.intrcnt.name.%d", i); 701 return; 702 } 703 704 mib[0] = CTL_KERN; 705 mib[1] = KERN_INTRCNT; 706 mib[2] = KERN_INTRCNT_VECTOR; 707 mib[3] = i; 708 siz = sizeof(vector); 709 if (sysctl(mib, 4, &vector, &siz, NULL, 0) < 0) { 710 strlcpy(intrname, name, sizeof(intrname)); 711 } else { 712 snprintf(intrname, sizeof(intrname), "irq%d/%s", 713 vector, name); 714 } 715 716 mib[0] = CTL_KERN; 717 mib[1] = KERN_INTRCNT; 718 mib[2] = KERN_INTRCNT_CNT; 719 mib[3] = i; 720 siz = sizeof(cnt); 721 if (sysctl(mib, 4, &cnt, &siz, NULL, 0) < 0) { 722 warnx("could not read kern.intrcnt.cnt.%d", i); 723 return; 724 } 725 726 if (cnt || zflag) 727 (void)printf("%-16.16s %20llu %8llu\n", intrname, 728 cnt, cnt / uptime); 729 inttotal += cnt; 730 } 731 732 (void)printf("%-16s %20llu %8llu\n", "Total", inttotal, 733 inttotal / uptime); 734 } 735 736 /* 737 * These names are defined in <sys/malloc.h>. 738 */ 739 const char *kmemnames[] = INITKMEMNAMES; 740 741 void 742 domem(void) 743 { 744 struct kmembuckets buckets[MINBUCKET + 16], *kp; 745 struct kmemstats kmemstats[M_LAST], *ks; 746 int i, j, len, size, first, mib[4]; 747 u_long totuse = 0, totfree = 0; 748 char buf[BUFSIZ], *bufp, *ap; 749 unsigned long long totreq = 0; 750 const char *name; 751 size_t siz; 752 753 if (memf == NULL && nlistf == NULL) { 754 mib[0] = CTL_KERN; 755 mib[1] = KERN_MALLOCSTATS; 756 mib[2] = KERN_MALLOC_BUCKETS; 757 siz = sizeof(buf); 758 if (sysctl(mib, 3, buf, &siz, NULL, 0) < 0) { 759 warnx("could not read kern.malloc.buckets"); 760 return; 761 } 762 763 bufp = buf; 764 mib[2] = KERN_MALLOC_BUCKET; 765 siz = sizeof(struct kmembuckets); 766 i = 0; 767 while ((ap = strsep(&bufp, ",")) != NULL) { 768 const char *errstr; 769 770 mib[3] = strtonum(ap, 0, INT_MAX, &errstr); 771 if (errstr) { 772 warnx("kernel lied about %d being a number", mib[3]); 773 return; 774 } 775 776 if (sysctl(mib, 4, &buckets[MINBUCKET + i], &siz, 777 NULL, 0) < 0) { 778 warn("could not read kern.malloc.bucket.%d", mib[3]); 779 return; 780 } 781 i++; 782 } 783 } else { 784 kread(X_KMEMBUCKETS, buckets, sizeof(buckets)); 785 } 786 787 for (first = 1, i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16; 788 i++, kp++) { 789 if (kp->kb_calls == 0 && !verbose) 790 continue; 791 if (first) { 792 (void)printf("Memory statistics by bucket size\n"); 793 (void)printf( 794 " Size In Use Free Requests HighWater Couldfree\n"); 795 first = 0; 796 } 797 size = 1 << i; 798 (void)printf("%8d %8llu %6llu %18llu %7llu %10llu\n", size, 799 (unsigned long long)(kp->kb_total - kp->kb_totalfree), 800 (unsigned long long)kp->kb_totalfree, 801 (unsigned long long)kp->kb_calls, 802 (unsigned long long)kp->kb_highwat, 803 (unsigned long long)kp->kb_couldfree); 804 totfree += size * kp->kb_totalfree; 805 } 806 807 /* 808 * If kmem statistics are not being gathered by the kernel, 809 * first will still be 1. 810 */ 811 if (first) { 812 printf( 813 "Kmem statistics are not being gathered by the kernel.\n"); 814 return; 815 } 816 817 if (memf == NULL && nlistf == NULL) { 818 memset(kmemstats, 0, sizeof(kmemstats)); 819 for (i = 0; i < M_LAST; i++) { 820 mib[0] = CTL_KERN; 821 mib[1] = KERN_MALLOCSTATS; 822 mib[2] = KERN_MALLOC_KMEMSTATS; 823 mib[3] = i; 824 siz = sizeof(struct kmemstats); 825 826 /* 827 * Skip errors -- these are presumed to be unallocated 828 * entries. 829 */ 830 if (sysctl(mib, 4, &kmemstats[i], &siz, NULL, 0) < 0) 831 continue; 832 } 833 } else { 834 kread(X_KMEMSTAT, kmemstats, sizeof(kmemstats)); 835 } 836 837 (void)printf("\nMemory usage type by bucket size\n"); 838 (void)printf(" Size Type(s)\n"); 839 kp = &buckets[MINBUCKET]; 840 for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) { 841 if (kp->kb_calls == 0) 842 continue; 843 first = 1; 844 len = 8; 845 for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) { 846 if (ks->ks_calls == 0) 847 continue; 848 if ((ks->ks_size & j) == 0) 849 continue; 850 name = kmemnames[i] ? kmemnames[i] : "undefined"; 851 len += 2 + strlen(name); 852 if (first) 853 printf("%8d %s", j, name); 854 else 855 printf(","); 856 if (len >= 80) { 857 printf("\n\t "); 858 len = 10 + strlen(name); 859 } 860 if (!first) 861 printf(" %s", name); 862 first = 0; 863 } 864 printf("\n"); 865 } 866 867 (void)printf( 868 "\nMemory statistics by type Type Kern\n"); 869 (void)printf( 870 " Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)\n"); 871 for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) { 872 if (ks->ks_calls == 0) 873 continue; 874 (void)printf("%14s%6ld%6ldK%7ldK%6ldK%9ld%5u%6u", 875 kmemnames[i] ? kmemnames[i] : "undefined", 876 ks->ks_inuse, (ks->ks_memuse + 1023) / 1024, 877 (ks->ks_maxused + 1023) / 1024, 878 (ks->ks_limit + 1023) / 1024, ks->ks_calls, 879 ks->ks_limblocks, ks->ks_mapblocks); 880 first = 1; 881 for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) { 882 if ((ks->ks_size & j) == 0) 883 continue; 884 if (first) 885 printf(" %d", j); 886 else 887 printf(",%d", j); 888 first = 0; 889 } 890 printf("\n"); 891 totuse += ks->ks_memuse; 892 totreq += ks->ks_calls; 893 } 894 (void)printf("\nMemory Totals: In Use Free Requests\n"); 895 (void)printf(" %7luK %6luK %8llu\n", 896 (totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq); 897 } 898 899 static void 900 print_pool(struct kinfo_pool *pp, char *name) 901 { 902 static int first = 1; 903 char maxp[32]; 904 int ovflw; 905 906 if (first) { 907 (void)printf("Memory resource pool statistics\n"); 908 (void)printf( 909 "%-11s%5s%9s%5s%9s%6s%6s%6s%6s%6s%6s%5s\n", 910 "Name", 911 "Size", 912 "Requests", 913 "Fail", 914 "InUse", 915 "Pgreq", 916 "Pgrel", 917 "Npage", 918 "Hiwat", 919 "Minpg", 920 "Maxpg", 921 "Idle"); 922 first = 0; 923 } 924 925 /* Skip unused pools unless verbose output. */ 926 if (pp->pr_nget == 0 && !verbose) 927 return; 928 929 if (pp->pr_maxpages == UINT_MAX) 930 snprintf(maxp, sizeof maxp, "inf"); 931 else 932 snprintf(maxp, sizeof maxp, "%u", pp->pr_maxpages); 933 /* 934 * Print single word. `ovflow' is number of characters didn't fit 935 * on the last word. `fmt' is a format string to print this word. 936 * It must contain asterisk for field width. `width' is a width 937 * occupied by this word. `fixed' is a number of constant chars in 938 * `fmt'. `val' is a value to be printed using format string `fmt'. 939 */ 940 #define PRWORD(ovflw, fmt, width, fixed, val) do { \ 941 (ovflw) += printf((fmt), \ 942 (width) - (fixed) - (ovflw) > 0 ? \ 943 (width) - (fixed) - (ovflw) : 0, \ 944 (val)) - (width); \ 945 if ((ovflw) < 0) \ 946 (ovflw) = 0; \ 947 } while (/* CONSTCOND */0) 948 949 ovflw = 0; 950 PRWORD(ovflw, "%-*s", 11, 0, name); 951 PRWORD(ovflw, " %*u", 5, 1, pp->pr_size); 952 PRWORD(ovflw, " %*lu", 9, 1, pp->pr_nget); 953 PRWORD(ovflw, " %*lu", 5, 1, pp->pr_nfail); 954 PRWORD(ovflw, " %*lu", 9, 1, pp->pr_nget - pp->pr_nput); 955 PRWORD(ovflw, " %*lu", 6, 1, pp->pr_npagealloc); 956 PRWORD(ovflw, " %*lu", 6, 1, pp->pr_npagefree); 957 PRWORD(ovflw, " %*d", 6, 1, pp->pr_npages); 958 PRWORD(ovflw, " %*d", 6, 1, pp->pr_hiwat); 959 PRWORD(ovflw, " %*d", 6, 1, pp->pr_minpages); 960 PRWORD(ovflw, " %*s", 6, 1, maxp); 961 PRWORD(ovflw, " %*lu\n", 5, 1, pp->pr_nidle); 962 } 963 964 static void dopool_kvm(void); 965 static void dopool_sysctl(void); 966 967 void 968 dopool(void) 969 { 970 if (nlistf == NULL && memf == NULL) 971 dopool_sysctl(); 972 else 973 dopool_kvm(); 974 } 975 976 void 977 dopool_sysctl(void) 978 { 979 int mib[4], npools, i; 980 long total = 0, inuse = 0; 981 struct kinfo_pool pool; 982 size_t size; 983 984 mib[0] = CTL_KERN; 985 mib[1] = KERN_POOL; 986 mib[2] = KERN_POOL_NPOOLS; 987 size = sizeof(npools); 988 if (sysctl(mib, 3, &npools, &size, NULL, 0) < 0) { 989 warn("can't figure out number of pools in kernel"); 990 return; 991 } 992 993 for (i = 1; npools; i++) { 994 char name[32]; 995 996 mib[0] = CTL_KERN; 997 mib[1] = KERN_POOL; 998 mib[2] = KERN_POOL_POOL; 999 mib[3] = i; 1000 size = sizeof(pool); 1001 if (sysctl(mib, 4, &pool, &size, NULL, 0) < 0) { 1002 if (errno == ENOENT) 1003 continue; 1004 warn("error getting pool"); 1005 return; 1006 } 1007 npools--; 1008 mib[2] = KERN_POOL_NAME; 1009 size = sizeof(name); 1010 if (sysctl(mib, 4, &name, &size, NULL, 0) < 0) { 1011 warn("error getting pool name"); 1012 return; 1013 } 1014 print_pool(&pool, name); 1015 1016 inuse += (pool.pr_nget - pool.pr_nput) * pool.pr_size; 1017 total += pool.pr_npages * pool.pr_pgsize; 1018 } 1019 1020 inuse /= 1024; 1021 total /= 1024; 1022 printf("\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n", 1023 inuse, total, (double)(100 * inuse) / total); 1024 } 1025 1026 void 1027 dopool_kvm(void) 1028 { 1029 SIMPLEQ_HEAD(,pool) pool_head; 1030 struct pool pool, *pp = &pool; 1031 struct kinfo_pool pi; 1032 long total = 0, inuse = 0; 1033 u_long addr; 1034 1035 kread(X_POOLHEAD, &pool_head, sizeof(pool_head)); 1036 addr = (u_long)SIMPLEQ_FIRST(&pool_head); 1037 1038 while (addr != 0) { 1039 char name[32]; 1040 1041 if (kvm_read(kd, addr, (void *)pp, sizeof *pp) != sizeof *pp) { 1042 (void)fprintf(stderr, 1043 "vmstat: pool chain trashed: %s\n", 1044 kvm_geterr(kd)); 1045 exit(1); 1046 } 1047 if (kvm_read(kd, (u_long)pp->pr_wchan, name, sizeof name) < 0) { 1048 (void)fprintf(stderr, 1049 "vmstat: pool name trashed: %s\n", 1050 kvm_geterr(kd)); 1051 exit(1); 1052 } 1053 name[31] = '\0'; 1054 1055 memset(&pi, 0, sizeof(pi)); 1056 pi.pr_size = pp->pr_size; 1057 pi.pr_pgsize = pp->pr_pgsize; 1058 pi.pr_itemsperpage = pp->pr_itemsperpage; 1059 pi.pr_npages = pp->pr_npages; 1060 pi.pr_minpages = pp->pr_minpages; 1061 pi.pr_maxpages = pp->pr_maxpages; 1062 pi.pr_hardlimit = pp->pr_hardlimit; 1063 pi.pr_nout = pp->pr_nout; 1064 pi.pr_nitems = pp->pr_nitems; 1065 pi.pr_nget = pp->pr_nget; 1066 pi.pr_nput = pp->pr_nput; 1067 pi.pr_nfail = pp->pr_nfail; 1068 pi.pr_npagealloc = pp->pr_npagealloc; 1069 pi.pr_npagefree = pp->pr_npagefree; 1070 pi.pr_hiwat = pp->pr_hiwat; 1071 pi.pr_nidle = pp->pr_nidle; 1072 1073 print_pool(&pi, name); 1074 1075 inuse += (pi.pr_nget - pi.pr_nput) * pi.pr_size; 1076 total += pi.pr_npages * pi.pr_pgsize; 1077 1078 addr = (u_long)SIMPLEQ_NEXT(pp, pr_poollist); 1079 } 1080 1081 inuse /= 1024; 1082 total /= 1024; 1083 printf("\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n", 1084 inuse, total, (double)(100 * inuse) / total); 1085 } 1086 1087 /* 1088 * kread reads something from the kernel, given its nlist index. 1089 */ 1090 void 1091 kread(int nlx, void *addr, size_t size) 1092 { 1093 char *sym; 1094 1095 if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) { 1096 sym = namelist[nlx].n_name; 1097 if (*sym == '_') 1098 ++sym; 1099 errx(1, "symbol %s not defined", sym); 1100 } 1101 if (kvm_read(kd, namelist[nlx].n_value, addr, size) != size) { 1102 sym = namelist[nlx].n_name; 1103 if (*sym == '_') 1104 ++sym; 1105 errx(1, "%s: %s", sym, kvm_geterr(kd)); 1106 } 1107 } 1108 1109 void 1110 usage(void) 1111 { 1112 (void)fprintf(stderr, "usage: %s [-fimstvz] [-c count] [-M core] " 1113 "[-N system] [-w wait] [disk ...]\n", __progname); 1114 exit(1); 1115 } 1116