1 /* 2 * Copyright (c) 1980, 1986, 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #ifndef lint 31 static const char copyright[] = 32 "@(#) Copyright (c) 1980, 1986, 1991, 1993\n\ 33 The Regents of the University of California. All rights reserved.\n"; 34 #endif /* not lint */ 35 36 #if 0 37 #ifndef lint 38 static char sccsid[] = "@(#)vmstat.c 8.1 (Berkeley) 6/6/93"; 39 #endif /* not lint */ 40 #endif 41 42 #include <sys/cdefs.h> 43 __FBSDID("$FreeBSD$"); 44 45 #include <sys/param.h> 46 #include <sys/proc.h> 47 #include <sys/uio.h> 48 #include <sys/namei.h> 49 #include <sys/malloc.h> 50 #include <sys/signal.h> 51 #include <sys/fcntl.h> 52 #include <sys/ioctl.h> 53 #include <sys/resource.h> 54 #include <sys/sysctl.h> 55 #include <sys/time.h> 56 #include <sys/vmmeter.h> 57 #include <sys/pcpu.h> 58 59 #include <vm/vm_param.h> 60 61 #include <ctype.h> 62 #include <devstat.h> 63 #include <err.h> 64 #include <errno.h> 65 #include <inttypes.h> 66 #include <kvm.h> 67 #include <limits.h> 68 #include <memstat.h> 69 #include <nlist.h> 70 #include <paths.h> 71 #include <stdio.h> 72 #include <stdlib.h> 73 #include <string.h> 74 #include <sysexits.h> 75 #include <time.h> 76 #include <unistd.h> 77 #include <libutil.h> 78 79 static char da[] = "da"; 80 81 static struct nlist namelist[] = { 82 #define X_SUM 0 83 { "_vm_cnt" }, 84 #define X_HZ 1 85 { "_hz" }, 86 #define X_STATHZ 2 87 { "_stathz" }, 88 #define X_NCHSTATS 3 89 { "_nchstats" }, 90 #define X_INTRNAMES 4 91 { "_intrnames" }, 92 #define X_SINTRNAMES 5 93 { "_sintrnames" }, 94 #define X_INTRCNT 6 95 { "_intrcnt" }, 96 #define X_SINTRCNT 7 97 { "_sintrcnt" }, 98 #ifdef notyet 99 #define X_DEFICIT XXX 100 { "_deficit" }, 101 #define X_REC XXX 102 { "_rectime" }, 103 #define X_PGIN XXX 104 { "_pgintime" }, 105 #define X_XSTATS XXX 106 { "_xstats" }, 107 #define X_END XXX 108 #else 109 #define X_END 8 110 #endif 111 { "" }, 112 }; 113 114 static struct statinfo cur, last; 115 static int num_devices, maxshowdevs; 116 static long generation; 117 static struct device_selection *dev_select; 118 static int num_selected; 119 static struct devstat_match *matches; 120 static int num_matches = 0; 121 static int num_devices_specified, num_selections; 122 static long select_generation; 123 static char **specified_devices; 124 static devstat_select_mode select_mode; 125 126 static struct vmmeter sum, osum; 127 128 #define VMSTAT_DEFAULT_LINES 20 /* Default number of `winlines'. */ 129 volatile sig_atomic_t wresized; /* Tty resized, when non-zero. */ 130 static int winlines = VMSTAT_DEFAULT_LINES; /* Current number of tty rows. */ 131 132 static int aflag; 133 static int nflag; 134 static int Pflag; 135 static int hflag; 136 137 static kvm_t *kd; 138 139 #define FORKSTAT 0x01 140 #define INTRSTAT 0x02 141 #define MEMSTAT 0x04 142 #define SUMSTAT 0x08 143 #define TIMESTAT 0x10 144 #define VMSTAT 0x20 145 #define ZMEMSTAT 0x40 146 147 static void cpustats(void); 148 static void pcpustats(int, u_long, int); 149 static void devstats(void); 150 static void doforkst(void); 151 static void dointr(unsigned int, int); 152 static void dosum(void); 153 static void dovmstat(unsigned int, int); 154 static void domemstat_malloc(void); 155 static void domemstat_zone(void); 156 static void kread(int, void *, size_t); 157 static void kreado(int, void *, size_t, size_t); 158 static char *kgetstr(const char *); 159 static void needhdr(int); 160 static void needresize(int); 161 static void doresize(void); 162 static void printhdr(int, u_long); 163 static void usage(void); 164 165 static long pct(long, long); 166 static long long getuptime(void); 167 168 static char **getdrivedata(char **); 169 170 int 171 main(int argc, char *argv[]) 172 { 173 int c, todo; 174 unsigned int interval; 175 float f; 176 int reps; 177 char *memf, *nlistf; 178 char errbuf[_POSIX2_LINE_MAX]; 179 180 memf = nlistf = NULL; 181 interval = reps = todo = 0; 182 maxshowdevs = 2; 183 hflag = isatty(1); 184 while ((c = getopt(argc, argv, "ac:fhHiM:mN:n:Pp:stw:z")) != -1) { 185 switch (c) { 186 case 'a': 187 aflag++; 188 break; 189 case 'c': 190 reps = atoi(optarg); 191 break; 192 case 'P': 193 Pflag++; 194 break; 195 case 'f': 196 todo |= FORKSTAT; 197 break; 198 case 'h': 199 hflag = 1; 200 break; 201 case 'H': 202 hflag = 0; 203 break; 204 case 'i': 205 todo |= INTRSTAT; 206 break; 207 case 'M': 208 memf = optarg; 209 break; 210 case 'm': 211 todo |= MEMSTAT; 212 break; 213 case 'N': 214 nlistf = optarg; 215 break; 216 case 'n': 217 nflag = 1; 218 maxshowdevs = atoi(optarg); 219 if (maxshowdevs < 0) 220 errx(1, "number of devices %d is < 0", 221 maxshowdevs); 222 break; 223 case 'p': 224 if (devstat_buildmatch(optarg, &matches, &num_matches) != 0) 225 errx(1, "%s", devstat_errbuf); 226 break; 227 case 's': 228 todo |= SUMSTAT; 229 break; 230 case 't': 231 #ifdef notyet 232 todo |= TIMESTAT; 233 #else 234 errx(EX_USAGE, "sorry, -t is not (re)implemented yet"); 235 #endif 236 break; 237 case 'w': 238 /* Convert to milliseconds. */ 239 f = atof(optarg); 240 interval = f * 1000; 241 break; 242 case 'z': 243 todo |= ZMEMSTAT; 244 break; 245 case '?': 246 default: 247 usage(); 248 } 249 } 250 argc -= optind; 251 argv += optind; 252 253 if (todo == 0) 254 todo = VMSTAT; 255 256 if (memf != NULL) { 257 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf); 258 if (kd == NULL) 259 errx(1, "kvm_openfiles: %s", errbuf); 260 } 261 262 retry_nlist: 263 if (kd != NULL && (c = kvm_nlist(kd, namelist)) != 0) { 264 if (c > 0) { 265 /* 266 * 'cnt' was renamed to 'vm_cnt'. If 'vm_cnt' is not 267 * found try looking up older 'cnt' symbol. 268 * */ 269 if (namelist[X_SUM].n_type == 0 && 270 strcmp(namelist[X_SUM].n_name, "_vm_cnt") == 0) { 271 namelist[X_SUM].n_name = "_cnt"; 272 goto retry_nlist; 273 } 274 warnx("undefined symbols:"); 275 for (c = 0; 276 c < (int)(sizeof(namelist)/sizeof(namelist[0])); 277 c++) 278 if (namelist[c].n_type == 0) 279 (void)fprintf(stderr, " %s", 280 namelist[c].n_name); 281 (void)fputc('\n', stderr); 282 } else 283 warnx("kvm_nlist: %s", kvm_geterr(kd)); 284 exit(1); 285 } 286 if (kd && Pflag) 287 errx(1, "Cannot use -P with crash dumps"); 288 289 if (todo & VMSTAT) { 290 /* 291 * Make sure that the userland devstat version matches the 292 * kernel devstat version. If not, exit and print a 293 * message informing the user of his mistake. 294 */ 295 if (devstat_checkversion(NULL) < 0) 296 errx(1, "%s", devstat_errbuf); 297 298 299 argv = getdrivedata(argv); 300 } 301 302 if (*argv) { 303 f = atof(*argv); 304 interval = f * 1000; 305 if (*++argv) 306 reps = atoi(*argv); 307 } 308 309 if (interval) { 310 if (!reps) 311 reps = -1; 312 } else if (reps) 313 interval = 1 * 1000; 314 315 if (todo & FORKSTAT) 316 doforkst(); 317 if (todo & MEMSTAT) 318 domemstat_malloc(); 319 if (todo & ZMEMSTAT) 320 domemstat_zone(); 321 if (todo & SUMSTAT) 322 dosum(); 323 #ifdef notyet 324 if (todo & TIMESTAT) 325 dotimes(); 326 #endif 327 if (todo & INTRSTAT) 328 dointr(interval, reps); 329 if (todo & VMSTAT) 330 dovmstat(interval, reps); 331 exit(0); 332 } 333 334 static int 335 mysysctl(const char *name, void *oldp, size_t *oldlenp, 336 void *newp, size_t newlen) 337 { 338 int error; 339 340 error = sysctlbyname(name, oldp, oldlenp, newp, newlen); 341 if (error != 0 && errno != ENOMEM) 342 err(1, "sysctl(%s)", name); 343 return (error); 344 } 345 346 static char ** 347 getdrivedata(char **argv) 348 { 349 if ((num_devices = devstat_getnumdevs(NULL)) < 0) 350 errx(1, "%s", devstat_errbuf); 351 352 cur.dinfo = (struct devinfo *)calloc(1, sizeof(struct devinfo)); 353 last.dinfo = (struct devinfo *)calloc(1, sizeof(struct devinfo)); 354 355 if (devstat_getdevs(NULL, &cur) == -1) 356 errx(1, "%s", devstat_errbuf); 357 358 num_devices = cur.dinfo->numdevs; 359 generation = cur.dinfo->generation; 360 361 specified_devices = (char **)malloc(sizeof(char *)); 362 for (num_devices_specified = 0; *argv; ++argv) { 363 if (isdigit(**argv)) 364 break; 365 num_devices_specified++; 366 specified_devices = (char **)realloc(specified_devices, 367 sizeof(char *) * 368 num_devices_specified); 369 specified_devices[num_devices_specified - 1] = *argv; 370 } 371 dev_select = NULL; 372 373 if (nflag == 0 && maxshowdevs < num_devices_specified) 374 maxshowdevs = num_devices_specified; 375 376 /* 377 * People are generally only interested in disk statistics when 378 * they're running vmstat. So, that's what we're going to give 379 * them if they don't specify anything by default. We'll also give 380 * them any other random devices in the system so that we get to 381 * maxshowdevs devices, if that many devices exist. If the user 382 * specifies devices on the command line, either through a pattern 383 * match or by naming them explicitly, we will give the user only 384 * those devices. 385 */ 386 if ((num_devices_specified == 0) && (num_matches == 0)) { 387 if (devstat_buildmatch(da, &matches, &num_matches) != 0) 388 errx(1, "%s", devstat_errbuf); 389 390 select_mode = DS_SELECT_ADD; 391 } else 392 select_mode = DS_SELECT_ONLY; 393 394 /* 395 * At this point, selectdevs will almost surely indicate that the 396 * device list has changed, so we don't look for return values of 0 397 * or 1. If we get back -1, though, there is an error. 398 */ 399 if (devstat_selectdevs(&dev_select, &num_selected, &num_selections, 400 &select_generation, generation, cur.dinfo->devices, 401 num_devices, matches, num_matches, specified_devices, 402 num_devices_specified, select_mode, 403 maxshowdevs, 0) == -1) 404 errx(1, "%s", devstat_errbuf); 405 406 return(argv); 407 } 408 409 /* Return system uptime in nanoseconds */ 410 static long long 411 getuptime(void) 412 { 413 struct timespec sp; 414 415 (void)clock_gettime(CLOCK_UPTIME, &sp); 416 417 return((long long)sp.tv_sec * 1000000000LL + sp.tv_nsec); 418 } 419 420 static void 421 fill_pcpu(struct pcpu ***pcpup, int* maxcpup) 422 { 423 struct pcpu **pcpu; 424 425 int maxcpu, i; 426 427 *pcpup = NULL; 428 429 if (kd == NULL) 430 return; 431 432 maxcpu = kvm_getmaxcpu(kd); 433 if (maxcpu < 0) 434 errx(1, "kvm_getmaxcpu: %s", kvm_geterr(kd)); 435 436 pcpu = calloc(maxcpu, sizeof(struct pcpu *)); 437 if (pcpu == NULL) 438 err(1, "calloc"); 439 440 for (i = 0; i < maxcpu; i++) { 441 pcpu[i] = kvm_getpcpu(kd, i); 442 if (pcpu[i] == (struct pcpu *)-1) 443 errx(1, "kvm_getpcpu: %s", kvm_geterr(kd)); 444 } 445 446 *maxcpup = maxcpu; 447 *pcpup = pcpu; 448 } 449 450 static void 451 free_pcpu(struct pcpu **pcpu, int maxcpu) 452 { 453 int i; 454 455 for (i = 0; i < maxcpu; i++) 456 free(pcpu[i]); 457 free(pcpu); 458 } 459 460 static void 461 fill_vmmeter(struct vmmeter *vmmp) 462 { 463 struct pcpu **pcpu; 464 int maxcpu, i; 465 466 if (kd != NULL) { 467 kread(X_SUM, vmmp, sizeof(*vmmp)); 468 fill_pcpu(&pcpu, &maxcpu); 469 for (i = 0; i < maxcpu; i++) { 470 if (pcpu[i] == NULL) 471 continue; 472 #define ADD_FROM_PCPU(i, name) \ 473 vmmp->name += pcpu[i]->pc_cnt.name 474 ADD_FROM_PCPU(i, v_swtch); 475 ADD_FROM_PCPU(i, v_trap); 476 ADD_FROM_PCPU(i, v_syscall); 477 ADD_FROM_PCPU(i, v_intr); 478 ADD_FROM_PCPU(i, v_soft); 479 ADD_FROM_PCPU(i, v_vm_faults); 480 ADD_FROM_PCPU(i, v_io_faults); 481 ADD_FROM_PCPU(i, v_cow_faults); 482 ADD_FROM_PCPU(i, v_cow_optim); 483 ADD_FROM_PCPU(i, v_zfod); 484 ADD_FROM_PCPU(i, v_ozfod); 485 ADD_FROM_PCPU(i, v_swapin); 486 ADD_FROM_PCPU(i, v_swapout); 487 ADD_FROM_PCPU(i, v_swappgsin); 488 ADD_FROM_PCPU(i, v_swappgsout); 489 ADD_FROM_PCPU(i, v_vnodein); 490 ADD_FROM_PCPU(i, v_vnodeout); 491 ADD_FROM_PCPU(i, v_vnodepgsin); 492 ADD_FROM_PCPU(i, v_vnodepgsout); 493 ADD_FROM_PCPU(i, v_intrans); 494 ADD_FROM_PCPU(i, v_tfree); 495 ADD_FROM_PCPU(i, v_forks); 496 ADD_FROM_PCPU(i, v_vforks); 497 ADD_FROM_PCPU(i, v_rforks); 498 ADD_FROM_PCPU(i, v_kthreads); 499 ADD_FROM_PCPU(i, v_forkpages); 500 ADD_FROM_PCPU(i, v_vforkpages); 501 ADD_FROM_PCPU(i, v_rforkpages); 502 ADD_FROM_PCPU(i, v_kthreadpages); 503 #undef ADD_FROM_PCPU 504 } 505 free_pcpu(pcpu, maxcpu); 506 } else { 507 size_t size = sizeof(unsigned int); 508 #define GET_VM_STATS(cat, name) \ 509 mysysctl("vm.stats." #cat "." #name, &vmmp->name, &size, NULL, 0) 510 /* sys */ 511 GET_VM_STATS(sys, v_swtch); 512 GET_VM_STATS(sys, v_trap); 513 GET_VM_STATS(sys, v_syscall); 514 GET_VM_STATS(sys, v_intr); 515 GET_VM_STATS(sys, v_soft); 516 517 /* vm */ 518 GET_VM_STATS(vm, v_vm_faults); 519 GET_VM_STATS(vm, v_io_faults); 520 GET_VM_STATS(vm, v_cow_faults); 521 GET_VM_STATS(vm, v_cow_optim); 522 GET_VM_STATS(vm, v_zfod); 523 GET_VM_STATS(vm, v_ozfod); 524 GET_VM_STATS(vm, v_swapin); 525 GET_VM_STATS(vm, v_swapout); 526 GET_VM_STATS(vm, v_swappgsin); 527 GET_VM_STATS(vm, v_swappgsout); 528 GET_VM_STATS(vm, v_vnodein); 529 GET_VM_STATS(vm, v_vnodeout); 530 GET_VM_STATS(vm, v_vnodepgsin); 531 GET_VM_STATS(vm, v_vnodepgsout); 532 GET_VM_STATS(vm, v_intrans); 533 GET_VM_STATS(vm, v_reactivated); 534 GET_VM_STATS(vm, v_pdwakeups); 535 GET_VM_STATS(vm, v_pdpages); 536 GET_VM_STATS(vm, v_tcached); 537 GET_VM_STATS(vm, v_dfree); 538 GET_VM_STATS(vm, v_pfree); 539 GET_VM_STATS(vm, v_tfree); 540 GET_VM_STATS(vm, v_page_size); 541 GET_VM_STATS(vm, v_page_count); 542 GET_VM_STATS(vm, v_free_reserved); 543 GET_VM_STATS(vm, v_free_target); 544 GET_VM_STATS(vm, v_free_min); 545 GET_VM_STATS(vm, v_free_count); 546 GET_VM_STATS(vm, v_wire_count); 547 GET_VM_STATS(vm, v_active_count); 548 GET_VM_STATS(vm, v_inactive_target); 549 GET_VM_STATS(vm, v_inactive_count); 550 GET_VM_STATS(vm, v_cache_count); 551 GET_VM_STATS(vm, v_cache_min); 552 GET_VM_STATS(vm, v_cache_max); 553 GET_VM_STATS(vm, v_pageout_free_min); 554 GET_VM_STATS(vm, v_interrupt_free_min); 555 /*GET_VM_STATS(vm, v_free_severe);*/ 556 GET_VM_STATS(vm, v_forks); 557 GET_VM_STATS(vm, v_vforks); 558 GET_VM_STATS(vm, v_rforks); 559 GET_VM_STATS(vm, v_kthreads); 560 GET_VM_STATS(vm, v_forkpages); 561 GET_VM_STATS(vm, v_vforkpages); 562 GET_VM_STATS(vm, v_rforkpages); 563 GET_VM_STATS(vm, v_kthreadpages); 564 #undef GET_VM_STATS 565 } 566 } 567 568 static void 569 fill_vmtotal(struct vmtotal *vmtp) 570 { 571 if (kd != NULL) { 572 /* XXX fill vmtp */ 573 errx(1, "not implemented"); 574 } else { 575 size_t size = sizeof(*vmtp); 576 mysysctl("vm.vmtotal", vmtp, &size, NULL, 0); 577 if (size != sizeof(*vmtp)) 578 errx(1, "vm.total size mismatch"); 579 } 580 } 581 582 /* Determine how many cpu columns, and what index they are in kern.cp_times */ 583 static int 584 getcpuinfo(u_long *maskp, int *maxidp) 585 { 586 int maxcpu; 587 int maxid; 588 int ncpus; 589 int i, j; 590 int empty; 591 size_t size; 592 long *times; 593 u_long mask; 594 595 if (kd != NULL) 596 errx(1, "not implemented"); 597 mask = 0; 598 ncpus = 0; 599 size = sizeof(maxcpu); 600 mysysctl("kern.smp.maxcpus", &maxcpu, &size, NULL, 0); 601 if (size != sizeof(maxcpu)) 602 errx(1, "sysctl kern.smp.maxcpus"); 603 size = sizeof(long) * maxcpu * CPUSTATES; 604 times = malloc(size); 605 if (times == NULL) 606 err(1, "malloc %zd bytes", size); 607 mysysctl("kern.cp_times", times, &size, NULL, 0); 608 maxid = (size / CPUSTATES / sizeof(long)) - 1; 609 for (i = 0; i <= maxid; i++) { 610 empty = 1; 611 for (j = 0; empty && j < CPUSTATES; j++) { 612 if (times[i * CPUSTATES + j] != 0) 613 empty = 0; 614 } 615 if (!empty) { 616 mask |= (1ul << i); 617 ncpus++; 618 } 619 } 620 if (maskp) 621 *maskp = mask; 622 if (maxidp) 623 *maxidp = maxid; 624 return (ncpus); 625 } 626 627 628 static void 629 prthuman(u_int64_t val, int size) 630 { 631 char buf[10]; 632 int flags; 633 634 if (size < 5 || size > 9) 635 errx(1, "doofus"); 636 flags = HN_B | HN_NOSPACE | HN_DECIMAL; 637 humanize_number(buf, size, val, "", HN_AUTOSCALE, flags); 638 printf("%*s", size, buf); 639 } 640 641 static int hz, hdrcnt; 642 643 static long *cur_cp_times; 644 static long *last_cp_times; 645 static size_t size_cp_times; 646 647 static void 648 dovmstat(unsigned int interval, int reps) 649 { 650 struct vmtotal total; 651 time_t uptime, halfuptime; 652 struct devinfo *tmp_dinfo; 653 size_t size; 654 int ncpus, maxid; 655 u_long cpumask; 656 int rate_adj; 657 658 uptime = getuptime() / 1000000000LL; 659 halfuptime = uptime / 2; 660 rate_adj = 1; 661 ncpus = 1; 662 maxid = 0; 663 664 /* 665 * If the user stops the program (control-Z) and then resumes it, 666 * print out the header again. 667 */ 668 (void)signal(SIGCONT, needhdr); 669 670 /* 671 * If our standard output is a tty, then install a SIGWINCH handler 672 * and set wresized so that our first iteration through the main 673 * vmstat loop will peek at the terminal's current rows to find out 674 * how many lines can fit in a screenful of output. 675 */ 676 if (isatty(fileno(stdout)) != 0) { 677 wresized = 1; 678 (void)signal(SIGWINCH, needresize); 679 } else { 680 wresized = 0; 681 winlines = VMSTAT_DEFAULT_LINES; 682 } 683 684 if (kd != NULL) { 685 if (namelist[X_STATHZ].n_type != 0 && 686 namelist[X_STATHZ].n_value != 0) 687 kread(X_STATHZ, &hz, sizeof(hz)); 688 if (!hz) 689 kread(X_HZ, &hz, sizeof(hz)); 690 } else { 691 struct clockinfo clockrate; 692 693 size = sizeof(clockrate); 694 mysysctl("kern.clockrate", &clockrate, &size, NULL, 0); 695 if (size != sizeof(clockrate)) 696 errx(1, "clockrate size mismatch"); 697 hz = clockrate.hz; 698 } 699 700 if (Pflag) { 701 ncpus = getcpuinfo(&cpumask, &maxid); 702 size_cp_times = sizeof(long) * (maxid + 1) * CPUSTATES; 703 cur_cp_times = calloc(1, size_cp_times); 704 last_cp_times = calloc(1, size_cp_times); 705 } 706 for (hdrcnt = 1;;) { 707 if (!--hdrcnt) 708 printhdr(maxid, cpumask); 709 if (kd != NULL) { 710 if (kvm_getcptime(kd, cur.cp_time) < 0) 711 errx(1, "kvm_getcptime: %s", kvm_geterr(kd)); 712 } else { 713 size = sizeof(cur.cp_time); 714 mysysctl("kern.cp_time", &cur.cp_time, &size, NULL, 0); 715 if (size != sizeof(cur.cp_time)) 716 errx(1, "cp_time size mismatch"); 717 } 718 if (Pflag) { 719 size = size_cp_times; 720 mysysctl("kern.cp_times", cur_cp_times, &size, NULL, 0); 721 if (size != size_cp_times) 722 errx(1, "cp_times mismatch"); 723 } 724 725 tmp_dinfo = last.dinfo; 726 last.dinfo = cur.dinfo; 727 cur.dinfo = tmp_dinfo; 728 last.snap_time = cur.snap_time; 729 730 /* 731 * Here what we want to do is refresh our device stats. 732 * getdevs() returns 1 when the device list has changed. 733 * If the device list has changed, we want to go through 734 * the selection process again, in case a device that we 735 * were previously displaying has gone away. 736 */ 737 switch (devstat_getdevs(NULL, &cur)) { 738 case -1: 739 errx(1, "%s", devstat_errbuf); 740 break; 741 case 1: { 742 int retval; 743 744 num_devices = cur.dinfo->numdevs; 745 generation = cur.dinfo->generation; 746 747 retval = devstat_selectdevs(&dev_select, &num_selected, 748 &num_selections, &select_generation, 749 generation, cur.dinfo->devices, 750 num_devices, matches, num_matches, 751 specified_devices, 752 num_devices_specified, select_mode, 753 maxshowdevs, 0); 754 switch (retval) { 755 case -1: 756 errx(1, "%s", devstat_errbuf); 757 break; 758 case 1: 759 printhdr(maxid, cpumask); 760 break; 761 default: 762 break; 763 } 764 } 765 default: 766 break; 767 } 768 769 fill_vmmeter(&sum); 770 fill_vmtotal(&total); 771 (void)printf("%1d %1d %1d", 772 total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw); 773 #define vmstat_pgtok(a) ((a) * (sum.v_page_size >> 10)) 774 #define rate(x) (((x) * rate_adj + halfuptime) / uptime) /* round */ 775 if (hflag) { 776 printf(""); 777 prthuman(total.t_avm * (u_int64_t)sum.v_page_size, 5); 778 printf(" "); 779 prthuman(total.t_free * (u_int64_t)sum.v_page_size, 5); 780 printf(" "); 781 (void)printf("%5lu ", 782 (unsigned long)rate(sum.v_vm_faults - 783 osum.v_vm_faults)); 784 } else { 785 printf(" %7d", vmstat_pgtok(total.t_avm)); 786 printf(" %7d ", vmstat_pgtok(total.t_free)); 787 (void)printf("%4lu ", 788 (unsigned long)rate(sum.v_vm_faults - 789 osum.v_vm_faults)); 790 } 791 (void)printf("%3lu ", 792 (unsigned long)rate(sum.v_reactivated - osum.v_reactivated)); 793 (void)printf("%3lu ", 794 (unsigned long)rate(sum.v_swapin + sum.v_vnodein - 795 (osum.v_swapin + osum.v_vnodein))); 796 (void)printf("%3lu ", 797 (unsigned long)rate(sum.v_swapout + sum.v_vnodeout - 798 (osum.v_swapout + osum.v_vnodeout))); 799 (void)printf("%5lu ", 800 (unsigned long)rate(sum.v_tfree - osum.v_tfree)); 801 (void)printf("%4lu ", 802 (unsigned long)rate(sum.v_pdpages - osum.v_pdpages)); 803 devstats(); 804 (void)printf("%4lu %5lu %5lu", 805 (unsigned long)rate(sum.v_intr - osum.v_intr), 806 (unsigned long)rate(sum.v_syscall - osum.v_syscall), 807 (unsigned long)rate(sum.v_swtch - osum.v_swtch)); 808 if (Pflag) 809 pcpustats(ncpus, cpumask, maxid); 810 else 811 cpustats(); 812 (void)printf("\n"); 813 (void)fflush(stdout); 814 if (reps >= 0 && --reps <= 0) 815 break; 816 osum = sum; 817 uptime = interval; 818 rate_adj = 1000; 819 /* 820 * We round upward to avoid losing low-frequency events 821 * (i.e., >= 1 per interval but < 1 per millisecond). 822 */ 823 if (interval != 1) 824 halfuptime = (uptime + 1) / 2; 825 else 826 halfuptime = 0; 827 (void)usleep(interval * 1000); 828 } 829 } 830 831 static void 832 printhdr(int maxid, u_long cpumask) 833 { 834 int i, num_shown; 835 836 num_shown = (num_selected < maxshowdevs) ? num_selected : maxshowdevs; 837 if (hflag) { 838 (void)printf("procs memory page%*s ", 19, ""); 839 } else { 840 (void)printf("procs memory page%*s ", 19, ""); 841 } 842 if (num_shown > 1) 843 (void)printf(" disks %*s", num_shown * 4 - 7, ""); 844 else if (num_shown == 1) 845 (void)printf(" disk"); 846 (void)printf(" faults "); 847 if (Pflag) { 848 for (i = 0; i <= maxid; i++) { 849 if (cpumask & (1ul << i)) 850 printf(" cpu%d ", i); 851 } 852 printf("\n"); 853 } else 854 printf(" cpu\n"); 855 if (hflag) { 856 (void)printf("r b w avm fre flt re pi po fr sr "); 857 } else { 858 (void)printf("r b w avm fre flt re pi po fr sr "); 859 } 860 for (i = 0; i < num_devices; i++) 861 if ((dev_select[i].selected) 862 && (dev_select[i].selected <= maxshowdevs)) 863 (void)printf("%c%c%d ", dev_select[i].device_name[0], 864 dev_select[i].device_name[1], 865 dev_select[i].unit_number); 866 (void)printf(" in sy cs"); 867 if (Pflag) { 868 for (i = 0; i <= maxid; i++) { 869 if (cpumask & (1ul << i)) 870 printf(" us sy id"); 871 } 872 printf("\n"); 873 } else 874 printf(" us sy id\n"); 875 if (wresized != 0) 876 doresize(); 877 hdrcnt = winlines; 878 } 879 880 /* 881 * Force a header to be prepended to the next output. 882 */ 883 static void 884 needhdr(int dummy __unused) 885 { 886 887 hdrcnt = 1; 888 } 889 890 /* 891 * When the terminal is resized, force an update of the maximum number of rows 892 * printed between each header repetition. Then force a new header to be 893 * prepended to the next output. 894 */ 895 void 896 needresize(int signo) 897 { 898 899 wresized = 1; 900 hdrcnt = 1; 901 } 902 903 /* 904 * Update the global `winlines' count of terminal rows. 905 */ 906 void 907 doresize(void) 908 { 909 int status; 910 struct winsize w; 911 912 for (;;) { 913 status = ioctl(fileno(stdout), TIOCGWINSZ, &w); 914 if (status == -1 && errno == EINTR) 915 continue; 916 else if (status == -1) 917 err(1, "ioctl"); 918 if (w.ws_row > 3) 919 winlines = w.ws_row - 3; 920 else 921 winlines = VMSTAT_DEFAULT_LINES; 922 break; 923 } 924 925 /* 926 * Inhibit doresize() calls until we are rescheduled by SIGWINCH. 927 */ 928 wresized = 0; 929 } 930 931 #ifdef notyet 932 static void 933 dotimes(void) 934 { 935 unsigned int pgintime, rectime; 936 937 kread(X_REC, &rectime, sizeof(rectime)); 938 kread(X_PGIN, &pgintime, sizeof(pgintime)); 939 kread(X_SUM, &sum, sizeof(sum)); 940 (void)printf("%u reclaims, %u total time (usec)\n", 941 sum.v_pgrec, rectime); 942 (void)printf("average: %u usec / reclaim\n", rectime / sum.v_pgrec); 943 (void)printf("\n"); 944 (void)printf("%u page ins, %u total time (msec)\n", 945 sum.v_pgin, pgintime / 10); 946 (void)printf("average: %8.1f msec / page in\n", 947 pgintime / (sum.v_pgin * 10.0)); 948 } 949 #endif 950 951 static long 952 pct(long top, long bot) 953 { 954 long ans; 955 956 if (bot == 0) 957 return(0); 958 ans = (quad_t)top * 100 / bot; 959 return (ans); 960 } 961 962 #define PCT(top, bot) pct((long)(top), (long)(bot)) 963 964 static void 965 dosum(void) 966 { 967 struct nchstats lnchstats; 968 long nchtotal; 969 970 fill_vmmeter(&sum); 971 (void)printf("%9u cpu context switches\n", sum.v_swtch); 972 (void)printf("%9u device interrupts\n", sum.v_intr); 973 (void)printf("%9u software interrupts\n", sum.v_soft); 974 (void)printf("%9u traps\n", sum.v_trap); 975 (void)printf("%9u system calls\n", sum.v_syscall); 976 (void)printf("%9u kernel threads created\n", sum.v_kthreads); 977 (void)printf("%9u fork() calls\n", sum.v_forks); 978 (void)printf("%9u vfork() calls\n", sum.v_vforks); 979 (void)printf("%9u rfork() calls\n", sum.v_rforks); 980 (void)printf("%9u swap pager pageins\n", sum.v_swapin); 981 (void)printf("%9u swap pager pages paged in\n", sum.v_swappgsin); 982 (void)printf("%9u swap pager pageouts\n", sum.v_swapout); 983 (void)printf("%9u swap pager pages paged out\n", sum.v_swappgsout); 984 (void)printf("%9u vnode pager pageins\n", sum.v_vnodein); 985 (void)printf("%9u vnode pager pages paged in\n", sum.v_vnodepgsin); 986 (void)printf("%9u vnode pager pageouts\n", sum.v_vnodeout); 987 (void)printf("%9u vnode pager pages paged out\n", sum.v_vnodepgsout); 988 (void)printf("%9u page daemon wakeups\n", sum.v_pdwakeups); 989 (void)printf("%9u pages examined by the page daemon\n", sum.v_pdpages); 990 (void)printf("%9u pages reactivated\n", sum.v_reactivated); 991 (void)printf("%9u copy-on-write faults\n", sum.v_cow_faults); 992 (void)printf("%9u copy-on-write optimized faults\n", sum.v_cow_optim); 993 (void)printf("%9u zero fill pages zeroed\n", sum.v_zfod); 994 (void)printf("%9u zero fill pages prezeroed\n", sum.v_ozfod); 995 (void)printf("%9u intransit blocking page faults\n", sum.v_intrans); 996 (void)printf("%9u total VM faults taken\n", sum.v_vm_faults); 997 (void)printf("%9u page faults requiring I/O\n", sum.v_io_faults); 998 (void)printf("%9u pages affected by kernel thread creation\n", 999 sum.v_kthreadpages); 1000 (void)printf("%9u pages affected by fork()\n", sum.v_forkpages); 1001 (void)printf("%9u pages affected by vfork()\n", sum.v_vforkpages); 1002 (void)printf("%9u pages affected by rfork()\n", sum.v_rforkpages); 1003 (void)printf("%9u pages cached\n", sum.v_tcached); 1004 (void)printf("%9u pages freed\n", sum.v_tfree); 1005 (void)printf("%9u pages freed by daemon\n", sum.v_dfree); 1006 (void)printf("%9u pages freed by exiting processes\n", sum.v_pfree); 1007 (void)printf("%9u pages active\n", sum.v_active_count); 1008 (void)printf("%9u pages inactive\n", sum.v_inactive_count); 1009 (void)printf("%9u pages in VM cache\n", sum.v_cache_count); 1010 (void)printf("%9u pages wired down\n", sum.v_wire_count); 1011 (void)printf("%9u pages free\n", sum.v_free_count); 1012 (void)printf("%9u bytes per page\n", sum.v_page_size); 1013 if (kd != NULL) { 1014 kread(X_NCHSTATS, &lnchstats, sizeof(lnchstats)); 1015 } else { 1016 size_t size = sizeof(lnchstats); 1017 mysysctl("vfs.cache.nchstats", &lnchstats, &size, NULL, 0); 1018 if (size != sizeof(lnchstats)) 1019 errx(1, "vfs.cache.nchstats size mismatch"); 1020 } 1021 nchtotal = lnchstats.ncs_goodhits + lnchstats.ncs_neghits + 1022 lnchstats.ncs_badhits + lnchstats.ncs_falsehits + 1023 lnchstats.ncs_miss + lnchstats.ncs_long; 1024 (void)printf("%9ld total name lookups\n", nchtotal); 1025 (void)printf( 1026 "%9s cache hits (%ld%% pos + %ld%% neg) system %ld%% per-directory\n", 1027 "", PCT(lnchstats.ncs_goodhits, nchtotal), 1028 PCT(lnchstats.ncs_neghits, nchtotal), 1029 PCT(lnchstats.ncs_pass2, nchtotal)); 1030 (void)printf("%9s deletions %ld%%, falsehits %ld%%, toolong %ld%%\n", "", 1031 PCT(lnchstats.ncs_badhits, nchtotal), 1032 PCT(lnchstats.ncs_falsehits, nchtotal), 1033 PCT(lnchstats.ncs_long, nchtotal)); 1034 } 1035 1036 static void 1037 doforkst(void) 1038 { 1039 fill_vmmeter(&sum); 1040 (void)printf("%u forks, %u pages, average %.2f\n", 1041 sum.v_forks, sum.v_forkpages, 1042 sum.v_forks == 0 ? 0.0 : 1043 (double)sum.v_forkpages / sum.v_forks); 1044 (void)printf("%u vforks, %u pages, average %.2f\n", 1045 sum.v_vforks, sum.v_vforkpages, 1046 sum.v_vforks == 0 ? 0.0 : 1047 (double)sum.v_vforkpages / sum.v_vforks); 1048 (void)printf("%u rforks, %u pages, average %.2f\n", 1049 sum.v_rforks, sum.v_rforkpages, 1050 sum.v_rforks == 0 ? 0.0 : 1051 (double)sum.v_rforkpages / sum.v_rforks); 1052 } 1053 1054 static void 1055 devstats(void) 1056 { 1057 int dn, state; 1058 long double transfers_per_second; 1059 long double busy_seconds; 1060 long tmp; 1061 1062 for (state = 0; state < CPUSTATES; ++state) { 1063 tmp = cur.cp_time[state]; 1064 cur.cp_time[state] -= last.cp_time[state]; 1065 last.cp_time[state] = tmp; 1066 } 1067 1068 busy_seconds = cur.snap_time - last.snap_time; 1069 1070 for (dn = 0; dn < num_devices; dn++) { 1071 int di; 1072 1073 if ((dev_select[dn].selected == 0) 1074 || (dev_select[dn].selected > maxshowdevs)) 1075 continue; 1076 1077 di = dev_select[dn].position; 1078 1079 if (devstat_compute_statistics(&cur.dinfo->devices[di], 1080 &last.dinfo->devices[di], busy_seconds, 1081 DSM_TRANSFERS_PER_SECOND, &transfers_per_second, 1082 DSM_NONE) != 0) 1083 errx(1, "%s", devstat_errbuf); 1084 1085 (void)printf("%3.0Lf ", transfers_per_second); 1086 } 1087 } 1088 1089 static void 1090 percent(double pct, int *over) 1091 { 1092 char buf[10]; 1093 int l; 1094 1095 l = snprintf(buf, sizeof(buf), "%.0f", pct); 1096 if (l == 1 && *over) { 1097 printf("%s", buf); 1098 (*over)--; 1099 } else 1100 printf("%2s", buf); 1101 if (l > 2) 1102 (*over)++; 1103 } 1104 1105 static void 1106 cpustats(void) 1107 { 1108 int state, over; 1109 double lpct, total; 1110 1111 total = 0; 1112 for (state = 0; state < CPUSTATES; ++state) 1113 total += cur.cp_time[state]; 1114 if (total) 1115 lpct = 100.0 / total; 1116 else 1117 lpct = 0.0; 1118 over = 0; 1119 printf(" "); 1120 percent((cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * lpct, &over); 1121 printf(" "); 1122 percent((cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * lpct, &over); 1123 printf(" "); 1124 percent(cur.cp_time[CP_IDLE] * lpct, &over); 1125 } 1126 1127 static void 1128 pcpustats(int ncpus, u_long cpumask, int maxid) 1129 { 1130 int state, i; 1131 double lpct, total; 1132 long tmp; 1133 int over; 1134 1135 /* devstats does this for cp_time */ 1136 for (i = 0; i <= maxid; i++) { 1137 if ((cpumask & (1ul << i)) == 0) 1138 continue; 1139 for (state = 0; state < CPUSTATES; ++state) { 1140 tmp = cur_cp_times[i * CPUSTATES + state]; 1141 cur_cp_times[i * CPUSTATES + state] -= last_cp_times[i * 1142 CPUSTATES + state]; 1143 last_cp_times[i * CPUSTATES + state] = tmp; 1144 } 1145 } 1146 1147 over = 0; 1148 for (i = 0; i <= maxid; i++) { 1149 if ((cpumask & (1ul << i)) == 0) 1150 continue; 1151 total = 0; 1152 for (state = 0; state < CPUSTATES; ++state) 1153 total += cur_cp_times[i * CPUSTATES + state]; 1154 if (total) 1155 lpct = 100.0 / total; 1156 else 1157 lpct = 0.0; 1158 printf(" "); 1159 percent((cur_cp_times[i * CPUSTATES + CP_USER] + 1160 cur_cp_times[i * CPUSTATES + CP_NICE]) * lpct, &over); 1161 printf(" "); 1162 percent((cur_cp_times[i * CPUSTATES + CP_SYS] + 1163 cur_cp_times[i * CPUSTATES + CP_INTR]) * lpct, &over); 1164 printf(" "); 1165 percent(cur_cp_times[i * CPUSTATES + CP_IDLE] * lpct, &over); 1166 } 1167 } 1168 1169 static unsigned int 1170 read_intrcnts(unsigned long **intrcnts) 1171 { 1172 size_t intrcntlen; 1173 1174 if (kd != NULL) { 1175 kread(X_SINTRCNT, &intrcntlen, sizeof(intrcntlen)); 1176 if ((*intrcnts = malloc(intrcntlen)) == NULL) 1177 err(1, "malloc()"); 1178 kread(X_INTRCNT, *intrcnts, intrcntlen); 1179 } else { 1180 for (*intrcnts = NULL, intrcntlen = 1024; ; intrcntlen *= 2) { 1181 *intrcnts = reallocf(*intrcnts, intrcntlen); 1182 if (*intrcnts == NULL) 1183 err(1, "reallocf()"); 1184 if (mysysctl("hw.intrcnt", 1185 *intrcnts, &intrcntlen, NULL, 0) == 0) 1186 break; 1187 } 1188 } 1189 1190 return (intrcntlen / sizeof(unsigned long)); 1191 } 1192 1193 static void 1194 print_intrcnts(unsigned long *intrcnts, unsigned long *old_intrcnts, 1195 char *intrnames, unsigned int nintr, 1196 size_t istrnamlen, long long period_ms) 1197 { 1198 unsigned long *intrcnt, *old_intrcnt; 1199 uint64_t inttotal, old_inttotal, total_count, total_rate; 1200 char* intrname; 1201 unsigned int i; 1202 1203 inttotal = 0; 1204 old_inttotal = 0; 1205 intrname = intrnames; 1206 for (i = 0, intrcnt=intrcnts, old_intrcnt=old_intrcnts; i < nintr; i++) { 1207 if (intrname[0] != '\0' && (*intrcnt != 0 || aflag)) { 1208 unsigned long count, rate; 1209 1210 count = *intrcnt - *old_intrcnt; 1211 rate = (count * 1000 + period_ms / 2) / period_ms; 1212 (void)printf("%-*s %20lu %10lu\n", (int)istrnamlen, 1213 intrname, count, rate); 1214 } 1215 intrname += strlen(intrname) + 1; 1216 inttotal += *intrcnt++; 1217 old_inttotal += *old_intrcnt++; 1218 } 1219 total_count = inttotal - old_inttotal; 1220 total_rate = (total_count * 1000 + period_ms / 2) / period_ms; 1221 (void)printf("%-*s %20" PRIu64 " %10" PRIu64 "\n", (int)istrnamlen, 1222 "Total", total_count, total_rate); 1223 } 1224 1225 static void 1226 dointr(unsigned int interval, int reps) 1227 { 1228 unsigned long *intrcnts; 1229 long long uptime, period_ms; 1230 unsigned long *old_intrcnts = NULL; 1231 size_t clen, inamlen, istrnamlen; 1232 char *intrnames, *intrname; 1233 1234 uptime = getuptime(); 1235 1236 /* Get the names of each interrupt source */ 1237 if (kd != NULL) { 1238 kread(X_SINTRNAMES, &inamlen, sizeof(inamlen)); 1239 if ((intrnames = malloc(inamlen)) == NULL) 1240 err(1, "malloc()"); 1241 kread(X_INTRNAMES, intrnames, inamlen); 1242 } else { 1243 for (intrnames = NULL, inamlen = 1024; ; inamlen *= 2) { 1244 if ((intrnames = reallocf(intrnames, inamlen)) == NULL) 1245 err(1, "reallocf()"); 1246 if (mysysctl("hw.intrnames", 1247 intrnames, &inamlen, NULL, 0) == 0) 1248 break; 1249 } 1250 } 1251 1252 /* Determine the length of the longest interrupt name */ 1253 intrname = intrnames; 1254 istrnamlen = strlen("interrupt"); 1255 while(*intrname != '\0') { 1256 clen = strlen(intrname); 1257 if (clen > istrnamlen) 1258 istrnamlen = clen; 1259 intrname += strlen(intrname) + 1; 1260 } 1261 (void)printf("%-*s %20s %10s\n", (int)istrnamlen, "interrupt", "total", 1262 "rate"); 1263 1264 /* 1265 * Loop reps times printing differential interrupt counts. If reps is 1266 * zero, then run just once, printing total counts 1267 */ 1268 period_ms = uptime / 1000000; 1269 while(1) { 1270 unsigned int nintr; 1271 long long old_uptime; 1272 1273 nintr = read_intrcnts(&intrcnts); 1274 /* 1275 * Initialize old_intrcnts to 0 for the first pass, so 1276 * print_intrcnts will print total interrupts since boot 1277 */ 1278 if (old_intrcnts == NULL) { 1279 old_intrcnts = calloc(nintr, sizeof(unsigned long)); 1280 if (old_intrcnts == NULL) 1281 err(1, "calloc()"); 1282 } 1283 1284 print_intrcnts(intrcnts, old_intrcnts, intrnames, nintr, 1285 istrnamlen, period_ms); 1286 1287 free(old_intrcnts); 1288 old_intrcnts = intrcnts; 1289 if (reps >= 0 && --reps <= 0) 1290 break; 1291 usleep(interval * 1000); 1292 old_uptime = uptime; 1293 uptime = getuptime(); 1294 period_ms = (uptime - old_uptime) / 1000000; 1295 } 1296 } 1297 1298 static void 1299 domemstat_malloc(void) 1300 { 1301 struct memory_type_list *mtlp; 1302 struct memory_type *mtp; 1303 int error, first, i; 1304 1305 mtlp = memstat_mtl_alloc(); 1306 if (mtlp == NULL) { 1307 warn("memstat_mtl_alloc"); 1308 return; 1309 } 1310 if (kd == NULL) { 1311 if (memstat_sysctl_malloc(mtlp, 0) < 0) { 1312 warnx("memstat_sysctl_malloc: %s", 1313 memstat_strerror(memstat_mtl_geterror(mtlp))); 1314 return; 1315 } 1316 } else { 1317 if (memstat_kvm_malloc(mtlp, kd) < 0) { 1318 error = memstat_mtl_geterror(mtlp); 1319 if (error == MEMSTAT_ERROR_KVM) 1320 warnx("memstat_kvm_malloc: %s", 1321 kvm_geterr(kd)); 1322 else 1323 warnx("memstat_kvm_malloc: %s", 1324 memstat_strerror(error)); 1325 } 1326 } 1327 printf("%13s %5s %6s %7s %8s Size(s)\n", "Type", "InUse", "MemUse", 1328 "HighUse", "Requests"); 1329 for (mtp = memstat_mtl_first(mtlp); mtp != NULL; 1330 mtp = memstat_mtl_next(mtp)) { 1331 if (memstat_get_numallocs(mtp) == 0 && 1332 memstat_get_count(mtp) == 0) 1333 continue; 1334 printf("%13s %5" PRIu64 " %5" PRIu64 "K %7s %8" PRIu64 " ", 1335 memstat_get_name(mtp), memstat_get_count(mtp), 1336 (memstat_get_bytes(mtp) + 1023) / 1024, "-", 1337 memstat_get_numallocs(mtp)); 1338 first = 1; 1339 for (i = 0; i < 32; i++) { 1340 if (memstat_get_sizemask(mtp) & (1 << i)) { 1341 if (!first) 1342 printf(","); 1343 printf("%d", 1 << (i + 4)); 1344 first = 0; 1345 } 1346 } 1347 printf("\n"); 1348 } 1349 memstat_mtl_free(mtlp); 1350 } 1351 1352 static void 1353 domemstat_zone(void) 1354 { 1355 struct memory_type_list *mtlp; 1356 struct memory_type *mtp; 1357 char name[MEMTYPE_MAXNAME + 1]; 1358 int error; 1359 1360 mtlp = memstat_mtl_alloc(); 1361 if (mtlp == NULL) { 1362 warn("memstat_mtl_alloc"); 1363 return; 1364 } 1365 if (kd == NULL) { 1366 if (memstat_sysctl_uma(mtlp, 0) < 0) { 1367 warnx("memstat_sysctl_uma: %s", 1368 memstat_strerror(memstat_mtl_geterror(mtlp))); 1369 return; 1370 } 1371 } else { 1372 if (memstat_kvm_uma(mtlp, kd) < 0) { 1373 error = memstat_mtl_geterror(mtlp); 1374 if (error == MEMSTAT_ERROR_KVM) 1375 warnx("memstat_kvm_uma: %s", 1376 kvm_geterr(kd)); 1377 else 1378 warnx("memstat_kvm_uma: %s", 1379 memstat_strerror(error)); 1380 } 1381 } 1382 printf("%-20s %6s %6s %8s %8s %8s %4s %4s\n\n", "ITEM", "SIZE", 1383 "LIMIT", "USED", "FREE", "REQ", "FAIL", "SLEEP"); 1384 for (mtp = memstat_mtl_first(mtlp); mtp != NULL; 1385 mtp = memstat_mtl_next(mtp)) { 1386 strlcpy(name, memstat_get_name(mtp), MEMTYPE_MAXNAME); 1387 strcat(name, ":"); 1388 printf("%-20s %6" PRIu64 ", %6" PRIu64 ",%8" PRIu64 ",%8" PRIu64 1389 ",%8" PRIu64 ",%4" PRIu64 ",%4" PRIu64 "\n", name, 1390 memstat_get_size(mtp), memstat_get_countlimit(mtp), 1391 memstat_get_count(mtp), memstat_get_free(mtp), 1392 memstat_get_numallocs(mtp), memstat_get_failures(mtp), 1393 memstat_get_sleeps(mtp)); 1394 } 1395 memstat_mtl_free(mtlp); 1396 printf("\n"); 1397 } 1398 1399 /* 1400 * kread reads something from the kernel, given its nlist index. 1401 */ 1402 static void 1403 kreado(int nlx, void *addr, size_t size, size_t offset) 1404 { 1405 const char *sym; 1406 1407 if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) { 1408 sym = namelist[nlx].n_name; 1409 if (*sym == '_') 1410 ++sym; 1411 errx(1, "symbol %s not defined", sym); 1412 } 1413 if ((size_t)kvm_read(kd, namelist[nlx].n_value + offset, addr, 1414 size) != size) { 1415 sym = namelist[nlx].n_name; 1416 if (*sym == '_') 1417 ++sym; 1418 errx(1, "%s: %s", sym, kvm_geterr(kd)); 1419 } 1420 } 1421 1422 static void 1423 kread(int nlx, void *addr, size_t size) 1424 { 1425 kreado(nlx, addr, size, 0); 1426 } 1427 1428 static char * 1429 kgetstr(const char *strp) 1430 { 1431 int n = 0, size = 1; 1432 char *ret = NULL; 1433 1434 do { 1435 if (size == n + 1) { 1436 ret = realloc(ret, size); 1437 if (ret == NULL) 1438 err(1, "%s: realloc", __func__); 1439 size *= 2; 1440 } 1441 if (kvm_read(kd, (u_long)strp + n, &ret[n], 1) != 1) 1442 errx(1, "%s: %s", __func__, kvm_geterr(kd)); 1443 } while (ret[n++] != '\0'); 1444 return (ret); 1445 } 1446 1447 static void 1448 usage(void) 1449 { 1450 (void)fprintf(stderr, "%s%s", 1451 "usage: vmstat [-afHhimPsz] [-M core [-N system]] [-c count] [-n devs]\n", 1452 " [-p type,if,pass] [-w wait] [disks] [wait [count]]\n"); 1453 exit(1); 1454 } 1455