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/user.h> 57 #include <sys/vmmeter.h> 58 #include <sys/pcpu.h> 59 60 #include <vm/vm_param.h> 61 62 #include <ctype.h> 63 #include <devstat.h> 64 #include <err.h> 65 #include <errno.h> 66 #include <inttypes.h> 67 #include <kvm.h> 68 #include <limits.h> 69 #include <memstat.h> 70 #include <nlist.h> 71 #include <paths.h> 72 #include <stdio.h> 73 #include <stdlib.h> 74 #include <string.h> 75 #include <sysexits.h> 76 #include <time.h> 77 #include <unistd.h> 78 #include <libutil.h> 79 #include <libxo/xo.h> 80 81 #define VMSTAT_XO_VERSION "1" 82 83 static char da[] = "da"; 84 85 static struct nlist namelist[] = { 86 #define X_SUM 0 87 { "_vm_cnt" }, 88 #define X_HZ 1 89 { "_hz" }, 90 #define X_STATHZ 2 91 { "_stathz" }, 92 #define X_NCHSTATS 3 93 { "_nchstats" }, 94 #define X_INTRNAMES 4 95 { "_intrnames" }, 96 #define X_SINTRNAMES 5 97 { "_sintrnames" }, 98 #define X_INTRCNT 6 99 { "_intrcnt" }, 100 #define X_SINTRCNT 7 101 { "_sintrcnt" }, 102 #ifdef notyet 103 #define X_DEFICIT XXX 104 { "_deficit" }, 105 #define X_REC XXX 106 { "_rectime" }, 107 #define X_PGIN XXX 108 { "_pgintime" }, 109 #define X_XSTATS XXX 110 { "_xstats" }, 111 #define X_END XXX 112 #else 113 #define X_END 8 114 #endif 115 { "" }, 116 }; 117 118 static struct statinfo cur, last; 119 static int num_devices, maxshowdevs; 120 static long generation; 121 static struct device_selection *dev_select; 122 static int num_selected; 123 static struct devstat_match *matches; 124 static int num_matches = 0; 125 static int num_devices_specified, num_selections; 126 static long select_generation; 127 static char **specified_devices; 128 static devstat_select_mode select_mode; 129 130 static struct vmmeter sum, osum; 131 132 #define VMSTAT_DEFAULT_LINES 20 /* Default number of `winlines'. */ 133 volatile sig_atomic_t wresized; /* Tty resized, when non-zero. */ 134 static int winlines = VMSTAT_DEFAULT_LINES; /* Current number of tty rows. */ 135 136 static int aflag; 137 static int nflag; 138 static int Pflag; 139 static int hflag; 140 141 static kvm_t *kd; 142 143 #define FORKSTAT 0x01 144 #define INTRSTAT 0x02 145 #define MEMSTAT 0x04 146 #define SUMSTAT 0x08 147 #define TIMESTAT 0x10 148 #define VMSTAT 0x20 149 #define ZMEMSTAT 0x40 150 #define OBJSTAT 0x80 151 152 static void cpustats(void); 153 static void pcpustats(int, u_long, int); 154 static void devstats(void); 155 static void doforkst(void); 156 static void dointr(unsigned int, int); 157 static void doobjstat(void); 158 static void dosum(void); 159 static void dovmstat(unsigned int, int); 160 static void domemstat_malloc(void); 161 static void domemstat_zone(void); 162 static void kread(int, void *, size_t); 163 static void kreado(int, void *, size_t, size_t); 164 static char *kgetstr(const char *); 165 static void needhdr(int); 166 static void needresize(int); 167 static void doresize(void); 168 static void printhdr(int, u_long); 169 static void usage(void); 170 171 static long pct(long, long); 172 static long long getuptime(void); 173 174 static char **getdrivedata(char **); 175 176 int 177 main(int argc, char *argv[]) 178 { 179 int c, todo; 180 unsigned int interval; 181 float f; 182 int reps; 183 char *memf, *nlistf; 184 char errbuf[_POSIX2_LINE_MAX]; 185 186 memf = nlistf = NULL; 187 interval = reps = todo = 0; 188 maxshowdevs = 2; 189 hflag = isatty(1); 190 191 argc = xo_parse_args(argc, argv); 192 if (argc < 0) 193 return argc; 194 195 while ((c = getopt(argc, argv, "ac:fhHiM:mN:n:oPp:stw:z")) != -1) { 196 switch (c) { 197 case 'a': 198 aflag++; 199 break; 200 case 'c': 201 reps = atoi(optarg); 202 break; 203 case 'P': 204 Pflag++; 205 break; 206 case 'f': 207 todo |= FORKSTAT; 208 break; 209 case 'h': 210 hflag = 1; 211 break; 212 case 'H': 213 hflag = 0; 214 break; 215 case 'i': 216 todo |= INTRSTAT; 217 break; 218 case 'M': 219 memf = optarg; 220 break; 221 case 'm': 222 todo |= MEMSTAT; 223 break; 224 case 'N': 225 nlistf = optarg; 226 break; 227 case 'n': 228 nflag = 1; 229 maxshowdevs = atoi(optarg); 230 if (maxshowdevs < 0) 231 xo_errx(1, "number of devices %d is < 0", 232 maxshowdevs); 233 break; 234 case 'o': 235 todo |= OBJSTAT; 236 break; 237 case 'p': 238 if (devstat_buildmatch(optarg, &matches, &num_matches) != 0) 239 xo_errx(1, "%s", devstat_errbuf); 240 break; 241 case 's': 242 todo |= SUMSTAT; 243 break; 244 case 't': 245 #ifdef notyet 246 todo |= TIMESTAT; 247 #else 248 xo_errx(EX_USAGE, "sorry, -t is not (re)implemented yet"); 249 #endif 250 break; 251 case 'w': 252 /* Convert to milliseconds. */ 253 f = atof(optarg); 254 interval = f * 1000; 255 break; 256 case 'z': 257 todo |= ZMEMSTAT; 258 break; 259 case '?': 260 default: 261 usage(); 262 } 263 } 264 argc -= optind; 265 argv += optind; 266 267 xo_set_version(VMSTAT_XO_VERSION); 268 if (todo == 0) 269 todo = VMSTAT; 270 271 if (memf != NULL) { 272 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf); 273 if (kd == NULL) 274 xo_errx(1, "kvm_openfiles: %s", errbuf); 275 } 276 277 retry_nlist: 278 if (kd != NULL && (c = kvm_nlist(kd, namelist)) != 0) { 279 if (c > 0) { 280 int bufsize = 0, len = 0; 281 char *buf, *bp; 282 /* 283 * 'cnt' was renamed to 'vm_cnt'. If 'vm_cnt' is not 284 * found try looking up older 'cnt' symbol. 285 * */ 286 if (namelist[X_SUM].n_type == 0 && 287 strcmp(namelist[X_SUM].n_name, "_vm_cnt") == 0) { 288 namelist[X_SUM].n_name = "_cnt"; 289 goto retry_nlist; 290 } 291 for (c = 0; 292 c < (int)(sizeof(namelist)/sizeof(namelist[0])); 293 c++) 294 if (namelist[c].n_type == 0) 295 bufsize += strlen(namelist[c].n_name) + 1; 296 bufsize += len + 1; 297 buf = bp = alloca(bufsize); 298 299 for (c = 0; 300 c < (int)(sizeof(namelist)/sizeof(namelist[0])); 301 c++) 302 if (namelist[c].n_type == 0) { 303 xo_error(" %s", 304 namelist[c].n_name); 305 len = strlen(namelist[c].n_name); 306 *bp++ = ' '; 307 memcpy(bp, namelist[c].n_name, len); 308 bp += len; 309 } 310 *bp = '\0'; 311 xo_error("undefined symbols:\n", buf); 312 } else 313 xo_warnx("kvm_nlist: %s", kvm_geterr(kd)); 314 xo_finish(); 315 exit(1); 316 } 317 if (kd && Pflag) 318 xo_errx(1, "Cannot use -P with crash dumps"); 319 320 if (todo & VMSTAT) { 321 /* 322 * Make sure that the userland devstat version matches the 323 * kernel devstat version. If not, exit and print a 324 * message informing the user of his mistake. 325 */ 326 if (devstat_checkversion(NULL) < 0) 327 xo_errx(1, "%s", devstat_errbuf); 328 329 330 argv = getdrivedata(argv); 331 } 332 333 if (*argv) { 334 f = atof(*argv); 335 interval = f * 1000; 336 if (*++argv) 337 reps = atoi(*argv); 338 } 339 340 if (interval) { 341 if (!reps) 342 reps = -1; 343 } else if (reps) 344 interval = 1 * 1000; 345 346 if (todo & FORKSTAT) 347 doforkst(); 348 if (todo & MEMSTAT) 349 domemstat_malloc(); 350 if (todo & ZMEMSTAT) 351 domemstat_zone(); 352 if (todo & SUMSTAT) 353 dosum(); 354 if (todo & OBJSTAT) 355 doobjstat(); 356 #ifdef notyet 357 if (todo & TIMESTAT) 358 dotimes(); 359 #endif 360 if (todo & INTRSTAT) 361 dointr(interval, reps); 362 if (todo & VMSTAT) 363 dovmstat(interval, reps); 364 xo_finish(); 365 exit(0); 366 } 367 368 static int 369 mysysctl(const char *name, void *oldp, size_t *oldlenp, 370 void *newp, size_t newlen) 371 { 372 int error; 373 374 error = sysctlbyname(name, oldp, oldlenp, newp, newlen); 375 if (error != 0 && errno != ENOMEM) 376 xo_err(1, "sysctl(%s)", name); 377 return (error); 378 } 379 380 static char ** 381 getdrivedata(char **argv) 382 { 383 if ((num_devices = devstat_getnumdevs(NULL)) < 0) 384 xo_errx(1, "%s", devstat_errbuf); 385 386 cur.dinfo = (struct devinfo *)calloc(1, sizeof(struct devinfo)); 387 last.dinfo = (struct devinfo *)calloc(1, sizeof(struct devinfo)); 388 389 if (devstat_getdevs(NULL, &cur) == -1) 390 xo_errx(1, "%s", devstat_errbuf); 391 392 num_devices = cur.dinfo->numdevs; 393 generation = cur.dinfo->generation; 394 395 specified_devices = (char **)malloc(sizeof(char *)); 396 for (num_devices_specified = 0; *argv; ++argv) { 397 if (isdigit(**argv)) 398 break; 399 num_devices_specified++; 400 specified_devices = (char **)realloc(specified_devices, 401 sizeof(char *) * 402 num_devices_specified); 403 specified_devices[num_devices_specified - 1] = *argv; 404 } 405 dev_select = NULL; 406 407 if (nflag == 0 && maxshowdevs < num_devices_specified) 408 maxshowdevs = num_devices_specified; 409 410 /* 411 * People are generally only interested in disk statistics when 412 * they're running vmstat. So, that's what we're going to give 413 * them if they don't specify anything by default. We'll also give 414 * them any other random devices in the system so that we get to 415 * maxshowdevs devices, if that many devices exist. If the user 416 * specifies devices on the command line, either through a pattern 417 * match or by naming them explicitly, we will give the user only 418 * those devices. 419 */ 420 if ((num_devices_specified == 0) && (num_matches == 0)) { 421 if (devstat_buildmatch(da, &matches, &num_matches) != 0) 422 xo_errx(1, "%s", devstat_errbuf); 423 424 select_mode = DS_SELECT_ADD; 425 } else 426 select_mode = DS_SELECT_ONLY; 427 428 /* 429 * At this point, selectdevs will almost surely indicate that the 430 * device list has changed, so we don't look for return values of 0 431 * or 1. If we get back -1, though, there is an error. 432 */ 433 if (devstat_selectdevs(&dev_select, &num_selected, &num_selections, 434 &select_generation, generation, cur.dinfo->devices, 435 num_devices, matches, num_matches, specified_devices, 436 num_devices_specified, select_mode, 437 maxshowdevs, 0) == -1) 438 xo_errx(1, "%s", devstat_errbuf); 439 440 return(argv); 441 } 442 443 /* Return system uptime in nanoseconds */ 444 static long long 445 getuptime(void) 446 { 447 struct timespec sp; 448 449 (void)clock_gettime(CLOCK_UPTIME, &sp); 450 451 return((long long)sp.tv_sec * 1000000000LL + sp.tv_nsec); 452 } 453 454 static void 455 fill_pcpu(struct pcpu ***pcpup, int* maxcpup) 456 { 457 struct pcpu **pcpu; 458 459 int maxcpu, i; 460 461 *pcpup = NULL; 462 463 if (kd == NULL) 464 return; 465 466 maxcpu = kvm_getmaxcpu(kd); 467 if (maxcpu < 0) 468 xo_errx(1, "kvm_getmaxcpu: %s", kvm_geterr(kd)); 469 470 pcpu = calloc(maxcpu, sizeof(struct pcpu *)); 471 if (pcpu == NULL) 472 xo_err(1, "calloc"); 473 474 for (i = 0; i < maxcpu; i++) { 475 pcpu[i] = kvm_getpcpu(kd, i); 476 if (pcpu[i] == (struct pcpu *)-1) 477 xo_errx(1, "kvm_getpcpu: %s", kvm_geterr(kd)); 478 } 479 480 *maxcpup = maxcpu; 481 *pcpup = pcpu; 482 } 483 484 static void 485 free_pcpu(struct pcpu **pcpu, int maxcpu) 486 { 487 int i; 488 489 for (i = 0; i < maxcpu; i++) 490 free(pcpu[i]); 491 free(pcpu); 492 } 493 494 static void 495 fill_vmmeter(struct vmmeter *vmmp) 496 { 497 struct pcpu **pcpu; 498 int maxcpu, i; 499 500 if (kd != NULL) { 501 kread(X_SUM, vmmp, sizeof(*vmmp)); 502 fill_pcpu(&pcpu, &maxcpu); 503 for (i = 0; i < maxcpu; i++) { 504 if (pcpu[i] == NULL) 505 continue; 506 #define ADD_FROM_PCPU(i, name) \ 507 vmmp->name += pcpu[i]->pc_cnt.name 508 ADD_FROM_PCPU(i, v_swtch); 509 ADD_FROM_PCPU(i, v_trap); 510 ADD_FROM_PCPU(i, v_syscall); 511 ADD_FROM_PCPU(i, v_intr); 512 ADD_FROM_PCPU(i, v_soft); 513 ADD_FROM_PCPU(i, v_vm_faults); 514 ADD_FROM_PCPU(i, v_io_faults); 515 ADD_FROM_PCPU(i, v_cow_faults); 516 ADD_FROM_PCPU(i, v_cow_optim); 517 ADD_FROM_PCPU(i, v_zfod); 518 ADD_FROM_PCPU(i, v_ozfod); 519 ADD_FROM_PCPU(i, v_swapin); 520 ADD_FROM_PCPU(i, v_swapout); 521 ADD_FROM_PCPU(i, v_swappgsin); 522 ADD_FROM_PCPU(i, v_swappgsout); 523 ADD_FROM_PCPU(i, v_vnodein); 524 ADD_FROM_PCPU(i, v_vnodeout); 525 ADD_FROM_PCPU(i, v_vnodepgsin); 526 ADD_FROM_PCPU(i, v_vnodepgsout); 527 ADD_FROM_PCPU(i, v_intrans); 528 ADD_FROM_PCPU(i, v_tfree); 529 ADD_FROM_PCPU(i, v_forks); 530 ADD_FROM_PCPU(i, v_vforks); 531 ADD_FROM_PCPU(i, v_rforks); 532 ADD_FROM_PCPU(i, v_kthreads); 533 ADD_FROM_PCPU(i, v_forkpages); 534 ADD_FROM_PCPU(i, v_vforkpages); 535 ADD_FROM_PCPU(i, v_rforkpages); 536 ADD_FROM_PCPU(i, v_kthreadpages); 537 #undef ADD_FROM_PCPU 538 } 539 free_pcpu(pcpu, maxcpu); 540 } else { 541 size_t size = sizeof(unsigned int); 542 #define GET_VM_STATS(cat, name) \ 543 mysysctl("vm.stats." #cat "." #name, &vmmp->name, &size, NULL, 0) 544 /* sys */ 545 GET_VM_STATS(sys, v_swtch); 546 GET_VM_STATS(sys, v_trap); 547 GET_VM_STATS(sys, v_syscall); 548 GET_VM_STATS(sys, v_intr); 549 GET_VM_STATS(sys, v_soft); 550 551 /* vm */ 552 GET_VM_STATS(vm, v_vm_faults); 553 GET_VM_STATS(vm, v_io_faults); 554 GET_VM_STATS(vm, v_cow_faults); 555 GET_VM_STATS(vm, v_cow_optim); 556 GET_VM_STATS(vm, v_zfod); 557 GET_VM_STATS(vm, v_ozfod); 558 GET_VM_STATS(vm, v_swapin); 559 GET_VM_STATS(vm, v_swapout); 560 GET_VM_STATS(vm, v_swappgsin); 561 GET_VM_STATS(vm, v_swappgsout); 562 GET_VM_STATS(vm, v_vnodein); 563 GET_VM_STATS(vm, v_vnodeout); 564 GET_VM_STATS(vm, v_vnodepgsin); 565 GET_VM_STATS(vm, v_vnodepgsout); 566 GET_VM_STATS(vm, v_intrans); 567 GET_VM_STATS(vm, v_reactivated); 568 GET_VM_STATS(vm, v_pdwakeups); 569 GET_VM_STATS(vm, v_pdpages); 570 GET_VM_STATS(vm, v_tcached); 571 GET_VM_STATS(vm, v_dfree); 572 GET_VM_STATS(vm, v_pfree); 573 GET_VM_STATS(vm, v_tfree); 574 GET_VM_STATS(vm, v_page_size); 575 GET_VM_STATS(vm, v_page_count); 576 GET_VM_STATS(vm, v_free_reserved); 577 GET_VM_STATS(vm, v_free_target); 578 GET_VM_STATS(vm, v_free_min); 579 GET_VM_STATS(vm, v_free_count); 580 GET_VM_STATS(vm, v_wire_count); 581 GET_VM_STATS(vm, v_active_count); 582 GET_VM_STATS(vm, v_inactive_target); 583 GET_VM_STATS(vm, v_inactive_count); 584 GET_VM_STATS(vm, v_cache_count); 585 GET_VM_STATS(vm, v_pageout_free_min); 586 GET_VM_STATS(vm, v_interrupt_free_min); 587 /*GET_VM_STATS(vm, v_free_severe);*/ 588 GET_VM_STATS(vm, v_forks); 589 GET_VM_STATS(vm, v_vforks); 590 GET_VM_STATS(vm, v_rforks); 591 GET_VM_STATS(vm, v_kthreads); 592 GET_VM_STATS(vm, v_forkpages); 593 GET_VM_STATS(vm, v_vforkpages); 594 GET_VM_STATS(vm, v_rforkpages); 595 GET_VM_STATS(vm, v_kthreadpages); 596 #undef GET_VM_STATS 597 } 598 } 599 600 static void 601 fill_vmtotal(struct vmtotal *vmtp) 602 { 603 if (kd != NULL) { 604 /* XXX fill vmtp */ 605 xo_errx(1, "not implemented"); 606 } else { 607 size_t size = sizeof(*vmtp); 608 mysysctl("vm.vmtotal", vmtp, &size, NULL, 0); 609 if (size != sizeof(*vmtp)) 610 xo_errx(1, "vm.total size mismatch"); 611 } 612 } 613 614 /* Determine how many cpu columns, and what index they are in kern.cp_times */ 615 static int 616 getcpuinfo(u_long *maskp, int *maxidp) 617 { 618 int maxcpu; 619 int maxid; 620 int ncpus; 621 int i, j; 622 int empty; 623 size_t size; 624 long *times; 625 u_long mask; 626 627 if (kd != NULL) 628 xo_errx(1, "not implemented"); 629 mask = 0; 630 ncpus = 0; 631 size = sizeof(maxcpu); 632 mysysctl("kern.smp.maxcpus", &maxcpu, &size, NULL, 0); 633 if (size != sizeof(maxcpu)) 634 xo_errx(1, "sysctl kern.smp.maxcpus"); 635 size = sizeof(long) * maxcpu * CPUSTATES; 636 times = malloc(size); 637 if (times == NULL) 638 xo_err(1, "malloc %zd bytes", size); 639 mysysctl("kern.cp_times", times, &size, NULL, 0); 640 maxid = (size / CPUSTATES / sizeof(long)) - 1; 641 for (i = 0; i <= maxid; i++) { 642 empty = 1; 643 for (j = 0; empty && j < CPUSTATES; j++) { 644 if (times[i * CPUSTATES + j] != 0) 645 empty = 0; 646 } 647 if (!empty) { 648 mask |= (1ul << i); 649 ncpus++; 650 } 651 } 652 if (maskp) 653 *maskp = mask; 654 if (maxidp) 655 *maxidp = maxid; 656 return (ncpus); 657 } 658 659 660 static void 661 prthuman(const char *name, u_int64_t val, int size) 662 { 663 char buf[10]; 664 int flags; 665 char fmt[128]; 666 667 snprintf(fmt, sizeof(fmt), "{:%s/%%*s}", name); 668 669 if (size < 5 || size > 9) 670 xo_errx(1, "doofus"); 671 flags = HN_B | HN_NOSPACE | HN_DECIMAL; 672 humanize_number(buf, size, val, "", HN_AUTOSCALE, flags); 673 xo_attr("value", "%ju", (uintmax_t) val); 674 xo_emit(fmt, size, buf); 675 } 676 677 static int hz, hdrcnt; 678 679 static long *cur_cp_times; 680 static long *last_cp_times; 681 static size_t size_cp_times; 682 683 static void 684 dovmstat(unsigned int interval, int reps) 685 { 686 struct vmtotal total; 687 time_t uptime, halfuptime; 688 struct devinfo *tmp_dinfo; 689 size_t size; 690 int ncpus, maxid; 691 u_long cpumask; 692 int rate_adj; 693 694 uptime = getuptime() / 1000000000LL; 695 halfuptime = uptime / 2; 696 rate_adj = 1; 697 ncpus = 1; 698 maxid = 0; 699 700 /* 701 * If the user stops the program (control-Z) and then resumes it, 702 * print out the header again. 703 */ 704 (void)signal(SIGCONT, needhdr); 705 706 /* 707 * If our standard output is a tty, then install a SIGWINCH handler 708 * and set wresized so that our first iteration through the main 709 * vmstat loop will peek at the terminal's current rows to find out 710 * how many lines can fit in a screenful of output. 711 */ 712 if (isatty(fileno(stdout)) != 0) { 713 wresized = 1; 714 (void)signal(SIGWINCH, needresize); 715 } else { 716 wresized = 0; 717 winlines = VMSTAT_DEFAULT_LINES; 718 } 719 720 if (kd != NULL) { 721 if (namelist[X_STATHZ].n_type != 0 && 722 namelist[X_STATHZ].n_value != 0) 723 kread(X_STATHZ, &hz, sizeof(hz)); 724 if (!hz) 725 kread(X_HZ, &hz, sizeof(hz)); 726 } else { 727 struct clockinfo clockrate; 728 729 size = sizeof(clockrate); 730 mysysctl("kern.clockrate", &clockrate, &size, NULL, 0); 731 if (size != sizeof(clockrate)) 732 xo_errx(1, "clockrate size mismatch"); 733 hz = clockrate.hz; 734 } 735 736 if (Pflag) { 737 ncpus = getcpuinfo(&cpumask, &maxid); 738 size_cp_times = sizeof(long) * (maxid + 1) * CPUSTATES; 739 cur_cp_times = calloc(1, size_cp_times); 740 last_cp_times = calloc(1, size_cp_times); 741 } 742 for (hdrcnt = 1;;) { 743 if (!--hdrcnt) 744 printhdr(maxid, cpumask); 745 if (kd != NULL) { 746 if (kvm_getcptime(kd, cur.cp_time) < 0) 747 xo_errx(1, "kvm_getcptime: %s", kvm_geterr(kd)); 748 } else { 749 size = sizeof(cur.cp_time); 750 mysysctl("kern.cp_time", &cur.cp_time, &size, NULL, 0); 751 if (size != sizeof(cur.cp_time)) 752 xo_errx(1, "cp_time size mismatch"); 753 } 754 if (Pflag) { 755 size = size_cp_times; 756 mysysctl("kern.cp_times", cur_cp_times, &size, NULL, 0); 757 if (size != size_cp_times) 758 xo_errx(1, "cp_times mismatch"); 759 } 760 761 tmp_dinfo = last.dinfo; 762 last.dinfo = cur.dinfo; 763 cur.dinfo = tmp_dinfo; 764 last.snap_time = cur.snap_time; 765 766 /* 767 * Here what we want to do is refresh our device stats. 768 * getdevs() returns 1 when the device list has changed. 769 * If the device list has changed, we want to go through 770 * the selection process again, in case a device that we 771 * were previously displaying has gone away. 772 */ 773 switch (devstat_getdevs(NULL, &cur)) { 774 case -1: 775 xo_errx(1, "%s", devstat_errbuf); 776 break; 777 case 1: { 778 int retval; 779 780 num_devices = cur.dinfo->numdevs; 781 generation = cur.dinfo->generation; 782 783 retval = devstat_selectdevs(&dev_select, &num_selected, 784 &num_selections, &select_generation, 785 generation, cur.dinfo->devices, 786 num_devices, matches, num_matches, 787 specified_devices, 788 num_devices_specified, select_mode, 789 maxshowdevs, 0); 790 switch (retval) { 791 case -1: 792 xo_errx(1, "%s", devstat_errbuf); 793 break; 794 case 1: 795 printhdr(maxid, cpumask); 796 break; 797 default: 798 break; 799 } 800 } 801 default: 802 break; 803 } 804 805 fill_vmmeter(&sum); 806 fill_vmtotal(&total); 807 xo_open_container("processes"); 808 xo_emit("{:runnable/%1d} {:waiting/%ld} " 809 "{:swapped-out/%ld}", 810 total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw); 811 xo_close_container("processes"); 812 xo_open_container("memory"); 813 #define vmstat_pgtok(a) ((a) * (sum.v_page_size >> 10)) 814 #define rate(x) (((x) * rate_adj + halfuptime) / uptime) /* round */ 815 if (hflag) { 816 xo_emit(""); 817 prthuman("available-memory", 818 total.t_avm * (u_int64_t)sum.v_page_size, 5); 819 xo_emit(" "); 820 prthuman("free-memory", 821 total.t_free * (u_int64_t)sum.v_page_size, 5); 822 xo_emit(" "); 823 } else { 824 xo_emit(" "); 825 xo_emit("{:available-memory/%7d}", 826 vmstat_pgtok(total.t_avm)); 827 xo_emit(" "); 828 xo_emit("{:free-memory/%7d}", 829 vmstat_pgtok(total.t_free)); 830 } 831 xo_emit("{:total-page-faults/%5lu} ", 832 (unsigned long)rate(sum.v_vm_faults - 833 osum.v_vm_faults)); 834 xo_close_container("memory"); 835 836 xo_open_container("paging-rates"); 837 xo_emit("{:page-reactivated/%3lu} ", 838 (unsigned long)rate(sum.v_reactivated - osum.v_reactivated)); 839 xo_emit("{:paged-in/%3lu} ", 840 (unsigned long)rate(sum.v_swapin + sum.v_vnodein - 841 (osum.v_swapin + osum.v_vnodein))); 842 xo_emit("{:paged-out/%3lu} ", 843 (unsigned long)rate(sum.v_swapout + sum.v_vnodeout - 844 (osum.v_swapout + osum.v_vnodeout))); 845 xo_emit("{:freed/%5lu} ", 846 (unsigned long)rate(sum.v_tfree - osum.v_tfree)); 847 xo_emit("{:scanned/%4lu} ", 848 (unsigned long)rate(sum.v_pdpages - osum.v_pdpages)); 849 xo_close_container("paging-rates"); 850 851 devstats(); 852 xo_open_container("fault-rates"); 853 xo_emit("{:interrupts/%4lu} {:system-calls/%5lu} " 854 "{:context-switches/%5u}", 855 (unsigned long)rate(sum.v_intr - osum.v_intr), 856 (unsigned long)rate(sum.v_syscall - osum.v_syscall), 857 (unsigned long)rate(sum.v_swtch - osum.v_swtch)); 858 xo_close_container("fault-rates"); 859 if (Pflag) 860 pcpustats(ncpus, cpumask, maxid); 861 else 862 cpustats(); 863 xo_emit("\n"); 864 xo_flush(); 865 if (reps >= 0 && --reps <= 0) 866 break; 867 osum = sum; 868 uptime = interval; 869 rate_adj = 1000; 870 /* 871 * We round upward to avoid losing low-frequency events 872 * (i.e., >= 1 per interval but < 1 per millisecond). 873 */ 874 if (interval != 1) 875 halfuptime = (uptime + 1) / 2; 876 else 877 halfuptime = 0; 878 (void)usleep(interval * 1000); 879 } 880 } 881 882 static void 883 printhdr(int maxid, u_long cpumask) 884 { 885 int i, num_shown; 886 887 num_shown = (num_selected < maxshowdevs) ? num_selected : maxshowdevs; 888 if (hflag) { 889 xo_emit("{T:procs} {T:memory} {T:/page%*s}", 19, ""); 890 } else { 891 xo_emit("{T:procs} {T:memory} {T:/page%*s}", 19, ""); 892 } 893 if (num_shown > 1) 894 xo_emit(" {T:/disks %*s}", num_shown * 4 - 7, ""); 895 else if (num_shown == 1) 896 xo_emit(" {T:disks}"); 897 xo_emit(" {T:faults} "); 898 if (Pflag) { 899 for (i = 0; i <= maxid; i++) { 900 if (cpumask & (1ul << i)) 901 xo_emit(" {T:/cpu%d} ", i); 902 } 903 xo_emit("\n"); 904 } else 905 xo_emit(" {T:cpu}\n"); 906 if (hflag) { 907 xo_emit("{T:r} {T:b} {T:w} {T:avm} {T:fre} {T:flt} {T:re} {T:pi} {T:po} {T:fr} {T:sr} "); 908 } else { 909 xo_emit("{T:r} {T:b} {T:w} {T:avm} {T:fre} {T:flt} {T:re} {T:pi} {T:po} {T:fr} {T:sr} "); 910 } 911 for (i = 0; i < num_devices; i++) 912 if ((dev_select[i].selected) 913 && (dev_select[i].selected <= maxshowdevs)) 914 xo_emit("{T:/%c%c%d} ", dev_select[i].device_name[0], 915 dev_select[i].device_name[1], 916 dev_select[i].unit_number); 917 xo_emit(" {T:in} {T:sy} {T:cs}"); 918 if (Pflag) { 919 for (i = 0; i <= maxid; i++) { 920 if (cpumask & (1ul << i)) 921 xo_emit(" {T:us} {T:sy} {T:id}"); 922 } 923 xo_emit("\n"); 924 } else 925 xo_emit(" {T:us} {T:sy} {T:id}\n"); 926 if (wresized != 0) 927 doresize(); 928 hdrcnt = winlines; 929 } 930 931 /* 932 * Force a header to be prepended to the next output. 933 */ 934 static void 935 needhdr(int dummy __unused) 936 { 937 938 hdrcnt = 1; 939 } 940 941 /* 942 * When the terminal is resized, force an update of the maximum number of rows 943 * printed between each header repetition. Then force a new header to be 944 * prepended to the next output. 945 */ 946 void 947 needresize(int signo) 948 { 949 950 wresized = 1; 951 hdrcnt = 1; 952 } 953 954 /* 955 * Update the global `winlines' count of terminal rows. 956 */ 957 void 958 doresize(void) 959 { 960 int status; 961 struct winsize w; 962 963 for (;;) { 964 status = ioctl(fileno(stdout), TIOCGWINSZ, &w); 965 if (status == -1 && errno == EINTR) 966 continue; 967 else if (status == -1) 968 xo_err(1, "ioctl"); 969 if (w.ws_row > 3) 970 winlines = w.ws_row - 3; 971 else 972 winlines = VMSTAT_DEFAULT_LINES; 973 break; 974 } 975 976 /* 977 * Inhibit doresize() calls until we are rescheduled by SIGWINCH. 978 */ 979 wresized = 0; 980 } 981 982 #ifdef notyet 983 static void 984 dotimes(void) 985 { 986 unsigned int pgintime, rectime; 987 988 kread(X_REC, &rectime, sizeof(rectime)); 989 kread(X_PGIN, &pgintime, sizeof(pgintime)); 990 kread(X_SUM, &sum, sizeof(sum)); 991 xo_emit("{:page-reclaims/%u} {N:reclaims}, " 992 "{:reclaim-time/%u} {N:total time (usec)}\n", 993 sum.v_pgrec, rectime); 994 xo_emit("{L:average}: {:reclaim-average/%u} {N:usec \\/ reclaim}\n", 995 rectime / sum.v_pgrec); 996 xo_emit("\n"); 997 xo_emit("{:page-ins/%u} {N:page ins}, " 998 "{:page-in-time/%u} {N:total time (msec)}\n", 999 sum.v_pgin, pgintime / 10); 1000 xo_emit("{L:average}: {:average/%8.1f} {N:msec \\/ page in}\n", 1001 pgintime / (sum.v_pgin * 10.0)); 1002 } 1003 #endif 1004 1005 static long 1006 pct(long top, long bot) 1007 { 1008 long ans; 1009 1010 if (bot == 0) 1011 return(0); 1012 ans = (quad_t)top * 100 / bot; 1013 return (ans); 1014 } 1015 1016 #define PCT(top, bot) pct((long)(top), (long)(bot)) 1017 1018 static void 1019 dosum(void) 1020 { 1021 struct nchstats lnchstats; 1022 long nchtotal; 1023 1024 fill_vmmeter(&sum); 1025 xo_open_container("summary-statistics"); 1026 xo_emit("{:context-switches/%9u} {N:cpu context switches}\n", 1027 sum.v_swtch); 1028 xo_emit("{:interrupts/%9u} {N:device interrupts}\n", 1029 sum.v_intr); 1030 xo_emit("{:software-interrupts/%9u} {N:software interrupts}\n", 1031 sum.v_soft); 1032 xo_emit("{:traps/%9u} {N:traps}\n", sum.v_trap); 1033 xo_emit("{:system-calls/%9u} {N:system calls}\n", 1034 sum.v_syscall); 1035 xo_emit("{:kernel-threads/%9u} {N:kernel threads created}\n", 1036 sum.v_kthreads); 1037 xo_emit("{:forks/%9u} {N: fork() calls}\n", sum.v_forks); 1038 xo_emit("{:vforks/%9u} {N:vfork() calls}\n", 1039 sum.v_vforks); 1040 xo_emit("{:rforks/%9u} {N:rfork() calls}\n", 1041 sum.v_rforks); 1042 xo_emit("{:swap-ins/%9u} {N:swap pager pageins}\n", 1043 sum.v_swapin); 1044 xo_emit("{:swap-in-pages/%9u} {N:swap pager pages paged in}\n", 1045 sum.v_swappgsin); 1046 xo_emit("{:swap-outs/%9u} {N:swap pager pageouts}\n", 1047 sum.v_swapout); 1048 xo_emit("{:swap-out-pages/%9u} {N:swap pager pages paged out}\n", 1049 sum.v_swappgsout); 1050 xo_emit("{:vnode-page-ins/%9u} {N:vnode pager pageins}\n", 1051 sum.v_vnodein); 1052 xo_emit("{:vnode-page-in-pages/%9u} {N:vnode pager pages paged in}\n", 1053 sum.v_vnodepgsin); 1054 xo_emit("{:vnode-page-outs/%9u} {N:vnode pager pageouts}\n", 1055 sum.v_vnodeout); 1056 xo_emit("{:vnode-page-outs/%9u} {N:vnode pager pages paged out}\n", 1057 sum.v_vnodepgsout); 1058 xo_emit("{:page-daemon-wakeups/%9u} {N:page daemon wakeups}\n", 1059 sum.v_pdwakeups); 1060 xo_emit("{:page-daemon-pages/%9u} {N:pages examined by the page daemon}\n", 1061 sum.v_pdpages); 1062 xo_emit("{:reactivated/%9u} {N:pages reactivated}\n", 1063 sum.v_reactivated); 1064 xo_emit("{:copy-on-write-faults/%9u} {N:copy-on-write faults}\n", 1065 sum.v_cow_faults); 1066 xo_emit("{:copy-on-write-optimized-faults/%9u} {N:copy-on-write optimized faults}\n", 1067 sum.v_cow_optim); 1068 xo_emit("{:zero-fill-pages/%9u} {N:zero fill pages zeroed}\n", 1069 sum.v_zfod); 1070 xo_emit("{:zero-fill-prezeroed/%9u} {N:zero fill pages prezeroed}\n", 1071 sum.v_ozfod); 1072 xo_emit("{:intransit-blocking/%9u} {N:intransit blocking page faults}\n", 1073 sum.v_intrans); 1074 xo_emit("{:total-faults/%9u} {N:total VM faults taken}\n", 1075 sum.v_vm_faults); 1076 xo_emit("{:faults-requiring-io/%9u} {N:page faults requiring I\\/O}\n", 1077 sum.v_io_faults); 1078 xo_emit("{:faults-from-thread-creation/%9u} {N:pages affected by kernel thread creation}\n", 1079 sum.v_kthreadpages); 1080 xo_emit("{:faults-from-fork/%9u} {N:pages affected by fork}()\n", 1081 sum.v_forkpages); 1082 xo_emit("{:faults-from-vfork/%9u} {N:pages affected by vfork}()\n", 1083 sum.v_vforkpages); 1084 xo_emit("{:pages-rfork/%9u} {N:pages affected by rfork}()\n", 1085 sum.v_rforkpages); 1086 xo_emit("{:pages-total-cached/%9u} {N:pages cached}\n", 1087 sum.v_tcached); 1088 xo_emit("{:pages-freed/%9u} {N:pages freed}\n", 1089 sum.v_tfree); 1090 xo_emit("{:pages-freed-by-daemon/%9u} {N:pages freed by daemon}\n", 1091 sum.v_dfree); 1092 xo_emit("{:pages-freed-on-exit/%9u} {N:pages freed by exiting processes}\n", 1093 sum.v_pfree); 1094 xo_emit("{:active-pages/%9u} {N:pages active}\n", 1095 sum.v_active_count); 1096 xo_emit("{:inactive-pages/%9u} {N:pages inactive}\n", 1097 sum.v_inactive_count); 1098 xo_emit("{:vm-cache/%9u} {N:pages in VM cache}\n", 1099 sum.v_cache_count); 1100 xo_emit("{:wired-pages/%9u} {N:pages wired down}\n", 1101 sum.v_wire_count); 1102 xo_emit("{:free-pages/%9u} {N:pages free}\n", 1103 sum.v_free_count); 1104 xo_emit("{:bytes-per-page/%9u} {N:bytes per page}\n", sum.v_page_size); 1105 if (kd != NULL) { 1106 kread(X_NCHSTATS, &lnchstats, sizeof(lnchstats)); 1107 } else { 1108 size_t size = sizeof(lnchstats); 1109 mysysctl("vfs.cache.nchstats", &lnchstats, &size, NULL, 0); 1110 if (size != sizeof(lnchstats)) 1111 xo_errx(1, "vfs.cache.nchstats size mismatch"); 1112 } 1113 nchtotal = lnchstats.ncs_goodhits + lnchstats.ncs_neghits + 1114 lnchstats.ncs_badhits + lnchstats.ncs_falsehits + 1115 lnchstats.ncs_miss + lnchstats.ncs_long; 1116 xo_emit("{:total-name-lookups/%9ld} {N:total name lookups}\n", 1117 nchtotal); 1118 xo_emit("{P:/%9s} {N:cache hits} " 1119 "({:positive-cache-hits/%ld}% pos + " 1120 "{:negative-cache-hits/%ld}% {N:neg}) " 1121 "system {:cache-hit-percent/%ld}% per-directory\n", 1122 "", PCT(lnchstats.ncs_goodhits, nchtotal), 1123 PCT(lnchstats.ncs_neghits, nchtotal), 1124 PCT(lnchstats.ncs_pass2, nchtotal)); 1125 xo_emit("{P:/%9s} {L:deletions} {:deletions/%ld}%, " 1126 "{L:falsehits} {:false-hits/%ld}%, " 1127 "{L:toolong} {:too-long/%ld}%\n", "", 1128 PCT(lnchstats.ncs_badhits, nchtotal), 1129 PCT(lnchstats.ncs_falsehits, nchtotal), 1130 PCT(lnchstats.ncs_long, nchtotal)); 1131 xo_close_container("summary-statistics"); 1132 } 1133 1134 static void 1135 doforkst(void) 1136 { 1137 fill_vmmeter(&sum); 1138 xo_open_container("fork-statistics"); 1139 xo_emit("{:fork/%u} {N:forks}, {:fork-pages/%u} {N:pages}, " 1140 "{L:average} {:fork-average/%.2f}\n", 1141 sum.v_forks, sum.v_forkpages, 1142 sum.v_forks == 0 ? 0.0 : 1143 (double)sum.v_forkpages / sum.v_forks); 1144 xo_emit("{:vfork/%u} {N:vforks}, {:vfork-pages/%u} {N:pages}, " 1145 "{L:average} {:vfork-average/%.2f}\n", 1146 sum.v_vforks, sum.v_vforkpages, 1147 sum.v_vforks == 0 ? 0.0 : 1148 (double)sum.v_vforkpages / sum.v_vforks); 1149 xo_emit("{:rfork/%u} {N:rforks}, {:rfork-pages/%u} {N:pages}, " 1150 "{L:average} {:rfork-average/%.2f}\n", 1151 sum.v_rforks, sum.v_rforkpages, 1152 sum.v_rforks == 0 ? 0.0 : 1153 (double)sum.v_rforkpages / sum.v_rforks); 1154 xo_close_container("fork-statistics"); 1155 } 1156 1157 static void 1158 devstats(void) 1159 { 1160 int dn, state; 1161 long double transfers_per_second; 1162 long double busy_seconds; 1163 long tmp; 1164 1165 for (state = 0; state < CPUSTATES; ++state) { 1166 tmp = cur.cp_time[state]; 1167 cur.cp_time[state] -= last.cp_time[state]; 1168 last.cp_time[state] = tmp; 1169 } 1170 1171 busy_seconds = cur.snap_time - last.snap_time; 1172 1173 xo_open_list("device"); 1174 for (dn = 0; dn < num_devices; dn++) { 1175 int di; 1176 1177 if ((dev_select[dn].selected == 0) 1178 || (dev_select[dn].selected > maxshowdevs)) 1179 continue; 1180 1181 di = dev_select[dn].position; 1182 1183 if (devstat_compute_statistics(&cur.dinfo->devices[di], 1184 &last.dinfo->devices[di], busy_seconds, 1185 DSM_TRANSFERS_PER_SECOND, &transfers_per_second, 1186 DSM_NONE) != 0) 1187 xo_errx(1, "%s", devstat_errbuf); 1188 1189 xo_open_instance("device"); 1190 xo_emit("{ekq:name/%c%c%d}{:transfers/%3.0Lf} ", 1191 dev_select[dn].device_name[0], 1192 dev_select[dn].device_name[1], 1193 dev_select[dn].unit_number, 1194 transfers_per_second); 1195 xo_close_instance("device"); 1196 } 1197 xo_close_list("device"); 1198 } 1199 1200 static void 1201 percent(const char *name, double pct, int *over) 1202 { 1203 char buf[10]; 1204 char fmt[128]; 1205 int l; 1206 1207 snprintf(fmt, sizeof(fmt), " {:%s/%%*s}", name); 1208 l = snprintf(buf, sizeof(buf), "%.0f", pct); 1209 if (l == 1 && *over) { 1210 xo_emit(fmt, 1, buf); 1211 (*over)--; 1212 } else 1213 xo_emit(fmt, 2, buf); 1214 if (l > 2) 1215 (*over)++; 1216 } 1217 1218 static void 1219 cpustats(void) 1220 { 1221 int state, over; 1222 double lpct, total; 1223 1224 total = 0; 1225 for (state = 0; state < CPUSTATES; ++state) 1226 total += cur.cp_time[state]; 1227 if (total) 1228 lpct = 100.0 / total; 1229 else 1230 lpct = 0.0; 1231 over = 0; 1232 xo_open_container("cpu-statistics"); 1233 percent("user", (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * lpct, &over); 1234 percent("system", (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * lpct, &over); 1235 percent("idle", cur.cp_time[CP_IDLE] * lpct, &over); 1236 xo_close_container("cpu-statistics"); 1237 } 1238 1239 static void 1240 pcpustats(int ncpus, u_long cpumask, int maxid) 1241 { 1242 int state, i; 1243 double lpct, total; 1244 long tmp; 1245 int over; 1246 1247 /* devstats does this for cp_time */ 1248 for (i = 0; i <= maxid; i++) { 1249 if ((cpumask & (1ul << i)) == 0) 1250 continue; 1251 for (state = 0; state < CPUSTATES; ++state) { 1252 tmp = cur_cp_times[i * CPUSTATES + state]; 1253 cur_cp_times[i * CPUSTATES + state] -= last_cp_times[i * 1254 CPUSTATES + state]; 1255 last_cp_times[i * CPUSTATES + state] = tmp; 1256 } 1257 } 1258 1259 over = 0; 1260 xo_open_list("cpu"); 1261 for (i = 0; i <= maxid; i++) { 1262 if ((cpumask & (1ul << i)) == 0) 1263 continue; 1264 xo_open_instance("cpu"); 1265 xo_emit("{ke:name/%d}", i); 1266 total = 0; 1267 for (state = 0; state < CPUSTATES; ++state) 1268 total += cur_cp_times[i * CPUSTATES + state]; 1269 if (total) 1270 lpct = 100.0 / total; 1271 else 1272 lpct = 0.0; 1273 percent("user", (cur_cp_times[i * CPUSTATES + CP_USER] + 1274 cur_cp_times[i * CPUSTATES + CP_NICE]) * lpct, &over); 1275 percent("system", (cur_cp_times[i * CPUSTATES + CP_SYS] + 1276 cur_cp_times[i * CPUSTATES + CP_INTR]) * lpct, &over); 1277 percent("idle", cur_cp_times[i * CPUSTATES + CP_IDLE] * lpct, 1278 &over); 1279 xo_close_instance("cpu"); 1280 } 1281 xo_close_list("cpu"); 1282 } 1283 1284 static unsigned int 1285 read_intrcnts(unsigned long **intrcnts) 1286 { 1287 size_t intrcntlen; 1288 1289 if (kd != NULL) { 1290 kread(X_SINTRCNT, &intrcntlen, sizeof(intrcntlen)); 1291 if ((*intrcnts = malloc(intrcntlen)) == NULL) 1292 err(1, "malloc()"); 1293 kread(X_INTRCNT, *intrcnts, intrcntlen); 1294 } else { 1295 for (*intrcnts = NULL, intrcntlen = 1024; ; intrcntlen *= 2) { 1296 *intrcnts = reallocf(*intrcnts, intrcntlen); 1297 if (*intrcnts == NULL) 1298 err(1, "reallocf()"); 1299 if (mysysctl("hw.intrcnt", 1300 *intrcnts, &intrcntlen, NULL, 0) == 0) 1301 break; 1302 } 1303 } 1304 1305 return (intrcntlen / sizeof(unsigned long)); 1306 } 1307 1308 static void 1309 print_intrcnts(unsigned long *intrcnts, unsigned long *old_intrcnts, 1310 char *intrnames, unsigned int nintr, 1311 size_t istrnamlen, long long period_ms) 1312 { 1313 unsigned long *intrcnt, *old_intrcnt; 1314 uint64_t inttotal, old_inttotal, total_count, total_rate; 1315 char* intrname; 1316 unsigned int i; 1317 1318 inttotal = 0; 1319 old_inttotal = 0; 1320 intrname = intrnames; 1321 xo_open_list("interrupt"); 1322 for (i = 0, intrcnt=intrcnts, old_intrcnt=old_intrcnts; i < nintr; i++) { 1323 if (intrname[0] != '\0' && (*intrcnt != 0 || aflag)) { 1324 unsigned long count, rate; 1325 1326 count = *intrcnt - *old_intrcnt; 1327 rate = (count * 1000 + period_ms / 2) / period_ms; 1328 xo_open_instance("interrupt"); 1329 xo_emit("{d:name/%-*s}{ket:name/%s} " 1330 "{:total/%20lu} {:rate/%10lu}\n", 1331 (int)istrnamlen, intrname, 1332 intrname, count, rate); 1333 xo_close_instance("interrupt"); 1334 } 1335 intrname += strlen(intrname) + 1; 1336 inttotal += *intrcnt++; 1337 old_inttotal += *old_intrcnt++; 1338 } 1339 total_count = inttotal - old_inttotal; 1340 total_rate = (total_count * 1000 + period_ms / 2) / period_ms; 1341 xo_close_list("interrupt"); 1342 xo_emit("{L:/%-*s} {:total-interrupts/%20" PRIu64 "} " 1343 "{:total-rate/%10" PRIu64 "}\n", (int)istrnamlen, 1344 "Total", total_count, total_rate); 1345 } 1346 1347 static void 1348 dointr(unsigned int interval, int reps) 1349 { 1350 unsigned long *intrcnts; 1351 long long uptime, period_ms; 1352 unsigned long *old_intrcnts = NULL; 1353 size_t clen, inamlen, istrnamlen; 1354 char *intrnames, *intrname; 1355 1356 uptime = getuptime(); 1357 1358 /* Get the names of each interrupt source */ 1359 if (kd != NULL) { 1360 kread(X_SINTRNAMES, &inamlen, sizeof(inamlen)); 1361 if ((intrnames = malloc(inamlen)) == NULL) 1362 xo_err(1, "malloc()"); 1363 kread(X_INTRNAMES, intrnames, inamlen); 1364 } else { 1365 for (intrnames = NULL, inamlen = 1024; ; inamlen *= 2) { 1366 if ((intrnames = reallocf(intrnames, inamlen)) == NULL) 1367 xo_err(1, "reallocf()"); 1368 if (mysysctl("hw.intrnames", 1369 intrnames, &inamlen, NULL, 0) == 0) 1370 break; 1371 } 1372 } 1373 1374 /* Determine the length of the longest interrupt name */ 1375 intrname = intrnames; 1376 istrnamlen = strlen("interrupt"); 1377 while(*intrname != '\0') { 1378 clen = strlen(intrname); 1379 if (clen > istrnamlen) 1380 istrnamlen = clen; 1381 intrname += strlen(intrname) + 1; 1382 } 1383 xo_emit("{T:/%-*s} {T:/%20s} {T:/%10s}\n", 1384 (int)istrnamlen, "interrupt", "total", "rate"); 1385 1386 /* 1387 * Loop reps times printing differential interrupt counts. If reps is 1388 * zero, then run just once, printing total counts 1389 */ 1390 xo_open_container("interrupt-statistics"); 1391 1392 period_ms = uptime / 1000000; 1393 while(1) { 1394 unsigned int nintr; 1395 long long old_uptime; 1396 1397 nintr = read_intrcnts(&intrcnts); 1398 /* 1399 * Initialize old_intrcnts to 0 for the first pass, so 1400 * print_intrcnts will print total interrupts since boot 1401 */ 1402 if (old_intrcnts == NULL) { 1403 old_intrcnts = calloc(nintr, sizeof(unsigned long)); 1404 if (old_intrcnts == NULL) 1405 xo_err(1, "calloc()"); 1406 } 1407 1408 print_intrcnts(intrcnts, old_intrcnts, intrnames, nintr, 1409 istrnamlen, period_ms); 1410 xo_flush(); 1411 1412 free(old_intrcnts); 1413 old_intrcnts = intrcnts; 1414 if (reps >= 0 && --reps <= 0) 1415 break; 1416 usleep(interval * 1000); 1417 old_uptime = uptime; 1418 uptime = getuptime(); 1419 period_ms = (uptime - old_uptime) / 1000000; 1420 } 1421 1422 xo_close_container("interrupt-statistics"); 1423 } 1424 1425 static void 1426 domemstat_malloc(void) 1427 { 1428 struct memory_type_list *mtlp; 1429 struct memory_type *mtp; 1430 int error, first, i; 1431 1432 mtlp = memstat_mtl_alloc(); 1433 if (mtlp == NULL) { 1434 xo_warn("memstat_mtl_alloc"); 1435 return; 1436 } 1437 if (kd == NULL) { 1438 if (memstat_sysctl_malloc(mtlp, 0) < 0) { 1439 xo_warnx("memstat_sysctl_malloc: %s", 1440 memstat_strerror(memstat_mtl_geterror(mtlp))); 1441 return; 1442 } 1443 } else { 1444 if (memstat_kvm_malloc(mtlp, kd) < 0) { 1445 error = memstat_mtl_geterror(mtlp); 1446 if (error == MEMSTAT_ERROR_KVM) 1447 xo_warnx("memstat_kvm_malloc: %s", 1448 kvm_geterr(kd)); 1449 else 1450 xo_warnx("memstat_kvm_malloc: %s", 1451 memstat_strerror(error)); 1452 } 1453 } 1454 xo_open_container("malloc-statistics"); 1455 xo_emit("{T:/%13s} {T:/%5s} {T:/%6s} {T:/%7s} {T:/%8s} {T:Size(s)}\n", 1456 "Type", "InUse", "MemUse", "HighUse", "Requests"); 1457 xo_open_list("memory"); 1458 for (mtp = memstat_mtl_first(mtlp); mtp != NULL; 1459 mtp = memstat_mtl_next(mtp)) { 1460 if (memstat_get_numallocs(mtp) == 0 && 1461 memstat_get_count(mtp) == 0) 1462 continue; 1463 xo_open_instance("memory"); 1464 xo_emit("{k:type/%13s/%s} {:in-use/%5" PRIu64 "} " 1465 "{:memory-use/%5" PRIu64 "}{U:K} {:high-use/%7s} " 1466 "{:requests/%8" PRIu64 "} ", 1467 memstat_get_name(mtp), memstat_get_count(mtp), 1468 (memstat_get_bytes(mtp) + 1023) / 1024, "-", 1469 memstat_get_numallocs(mtp)); 1470 first = 1; 1471 xo_open_list("size"); 1472 for (i = 0; i < 32; i++) { 1473 if (memstat_get_sizemask(mtp) & (1 << i)) { 1474 if (!first) 1475 xo_emit(","); 1476 xo_emit("{l:size/%d}", 1 << (i + 4)); 1477 first = 0; 1478 } 1479 } 1480 xo_close_list("size"); 1481 xo_close_instance("memory"); 1482 xo_emit("\n"); 1483 } 1484 xo_close_list("memory"); 1485 xo_close_container("malloc-statistics"); 1486 memstat_mtl_free(mtlp); 1487 } 1488 1489 static void 1490 domemstat_zone(void) 1491 { 1492 struct memory_type_list *mtlp; 1493 struct memory_type *mtp; 1494 char name[MEMTYPE_MAXNAME + 1]; 1495 int error; 1496 1497 mtlp = memstat_mtl_alloc(); 1498 if (mtlp == NULL) { 1499 xo_warn("memstat_mtl_alloc"); 1500 return; 1501 } 1502 if (kd == NULL) { 1503 if (memstat_sysctl_uma(mtlp, 0) < 0) { 1504 xo_warnx("memstat_sysctl_uma: %s", 1505 memstat_strerror(memstat_mtl_geterror(mtlp))); 1506 return; 1507 } 1508 } else { 1509 if (memstat_kvm_uma(mtlp, kd) < 0) { 1510 error = memstat_mtl_geterror(mtlp); 1511 if (error == MEMSTAT_ERROR_KVM) 1512 xo_warnx("memstat_kvm_uma: %s", 1513 kvm_geterr(kd)); 1514 else 1515 xo_warnx("memstat_kvm_uma: %s", 1516 memstat_strerror(error)); 1517 } 1518 } 1519 xo_open_container("memory-zone-statistics"); 1520 xo_emit("{T:/%-20s} {T:/%6s} {T:/%6s} {T:/%8s} {T:/%8s} {T:/%8s} " 1521 "{T:/%4s} {T:/%4s}\n\n", "ITEM", "SIZE", 1522 "LIMIT", "USED", "FREE", "REQ", "FAIL", "SLEEP"); 1523 xo_open_list("zone"); 1524 for (mtp = memstat_mtl_first(mtlp); mtp != NULL; 1525 mtp = memstat_mtl_next(mtp)) { 1526 strlcpy(name, memstat_get_name(mtp), MEMTYPE_MAXNAME); 1527 strcat(name, ":"); 1528 xo_open_instance("zone"); 1529 xo_emit("{d:name/%-20s}{ke:name/%s} {:size/%6" PRIu64 "}, " 1530 "{:limit/%6" PRIu64 "},{:used/%8" PRIu64 "}," 1531 "{:free/%8" PRIu64 "},{:requests/%8" PRIu64 "}," 1532 "{:fail/%4" PRIu64 "},{:sleep/%4" PRIu64 "}\n", name, 1533 memstat_get_name(mtp), 1534 memstat_get_size(mtp), memstat_get_countlimit(mtp), 1535 memstat_get_count(mtp), memstat_get_free(mtp), 1536 memstat_get_numallocs(mtp), memstat_get_failures(mtp), 1537 memstat_get_sleeps(mtp)); 1538 xo_close_instance("zone"); 1539 } 1540 memstat_mtl_free(mtlp); 1541 xo_close_list("zone"); 1542 xo_close_container("memory-zone-statistics"); 1543 xo_emit("\n"); 1544 } 1545 1546 static void 1547 display_object(struct kinfo_vmobject *kvo) 1548 { 1549 const char *str; 1550 1551 xo_open_instance("object"); 1552 xo_emit("{:resident/%5jd} ", (uintmax_t)kvo->kvo_resident); 1553 xo_emit("{:active/%5jd} ", (uintmax_t)kvo->kvo_active); 1554 xo_emit("{:inactive/%5jd} ", (uintmax_t)kvo->kvo_inactive); 1555 xo_emit("{:refcount/%3d} ", kvo->kvo_ref_count); 1556 xo_emit("{:shadowcount/%3d} ", kvo->kvo_shadow_count); 1557 switch (kvo->kvo_memattr) { 1558 #ifdef VM_MEMATTR_UNCACHEABLE 1559 case VM_MEMATTR_UNCACHEABLE: 1560 str = "UC"; 1561 break; 1562 #endif 1563 #ifdef VM_MEMATTR_WRITE_COMBINING 1564 case VM_MEMATTR_WRITE_COMBINING: 1565 str = "WC"; 1566 break; 1567 #endif 1568 #ifdef VM_MEMATTR_WRITE_THROUGH 1569 case VM_MEMATTR_WRITE_THROUGH: 1570 str = "WT"; 1571 break; 1572 #endif 1573 #ifdef VM_MEMATTR_WRITE_PROTECTED 1574 case VM_MEMATTR_WRITE_PROTECTED: 1575 str = "WP"; 1576 break; 1577 #endif 1578 #ifdef VM_MEMATTR_WRITE_BACK 1579 case VM_MEMATTR_WRITE_BACK: 1580 str = "WB"; 1581 break; 1582 #endif 1583 #ifdef VM_MEMATTR_WEAK_UNCACHEABLE 1584 case VM_MEMATTR_WEAK_UNCACHEABLE: 1585 str = "UC-"; 1586 break; 1587 #endif 1588 #ifdef VM_MEMATTR_WB_WA 1589 case VM_MEMATTR_WB_WA: 1590 str = "WB"; 1591 break; 1592 #endif 1593 #ifdef VM_MEMATTR_NOCACHE 1594 case VM_MEMATTR_NOCACHE: 1595 str = "NC"; 1596 break; 1597 #endif 1598 #ifdef VM_MEMATTR_DEVICE 1599 case VM_MEMATTR_DEVICE: 1600 str = "DEV"; 1601 break; 1602 #endif 1603 #ifdef VM_MEMATTR_CACHEABLE 1604 case VM_MEMATTR_CACHEABLE: 1605 str = "C"; 1606 break; 1607 #endif 1608 #ifdef VM_MEMATTR_PREFETCHABLE 1609 case VM_MEMATTR_PREFETCHABLE: 1610 str = "PRE"; 1611 break; 1612 #endif 1613 default: 1614 str = "??"; 1615 break; 1616 } 1617 xo_emit("{:attribute/%-3s} ", str); 1618 switch (kvo->kvo_type) { 1619 case KVME_TYPE_NONE: 1620 str = "--"; 1621 break; 1622 case KVME_TYPE_DEFAULT: 1623 str = "df"; 1624 break; 1625 case KVME_TYPE_VNODE: 1626 str = "vn"; 1627 break; 1628 case KVME_TYPE_SWAP: 1629 str = "sw"; 1630 break; 1631 case KVME_TYPE_DEVICE: 1632 str = "dv"; 1633 break; 1634 case KVME_TYPE_PHYS: 1635 str = "ph"; 1636 break; 1637 case KVME_TYPE_DEAD: 1638 str = "dd"; 1639 break; 1640 case KVME_TYPE_SG: 1641 str = "sg"; 1642 break; 1643 case KVME_TYPE_UNKNOWN: 1644 default: 1645 str = "??"; 1646 break; 1647 } 1648 xo_emit("{:type/%-2s} ", str); 1649 xo_emit("{:path/%-s}\n", kvo->kvo_path); 1650 xo_close_instance("object"); 1651 } 1652 1653 static void 1654 doobjstat(void) 1655 { 1656 struct kinfo_vmobject *kvo; 1657 int cnt, i; 1658 1659 kvo = kinfo_getvmobject(&cnt); 1660 if (kvo == NULL) { 1661 xo_warn("Failed to fetch VM object list"); 1662 return; 1663 } 1664 xo_emit("{T:RES/%5s} {T:ACT/%5s} {T:INACT/%5s} {T:REF/%3s} {T:SHD/%3s} " 1665 "{T:CM/%3s} {T:TP/%2s} {T:PATH/%s}\n"); 1666 xo_open_list("object"); 1667 for (i = 0; i < cnt; i++) 1668 display_object(&kvo[i]); 1669 free(kvo); 1670 xo_close_list("object"); 1671 } 1672 1673 /* 1674 * kread reads something from the kernel, given its nlist index. 1675 */ 1676 static void 1677 kreado(int nlx, void *addr, size_t size, size_t offset) 1678 { 1679 const char *sym; 1680 1681 if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) { 1682 sym = namelist[nlx].n_name; 1683 if (*sym == '_') 1684 ++sym; 1685 xo_errx(1, "symbol %s not defined", sym); 1686 } 1687 if ((size_t)kvm_read(kd, namelist[nlx].n_value + offset, addr, 1688 size) != size) { 1689 sym = namelist[nlx].n_name; 1690 if (*sym == '_') 1691 ++sym; 1692 xo_errx(1, "%s: %s", sym, kvm_geterr(kd)); 1693 } 1694 } 1695 1696 static void 1697 kread(int nlx, void *addr, size_t size) 1698 { 1699 kreado(nlx, addr, size, 0); 1700 } 1701 1702 static char * 1703 kgetstr(const char *strp) 1704 { 1705 int n = 0, size = 1; 1706 char *ret = NULL; 1707 1708 do { 1709 if (size == n + 1) { 1710 ret = realloc(ret, size); 1711 if (ret == NULL) 1712 xo_err(1, "%s: realloc", __func__); 1713 size *= 2; 1714 } 1715 if (kvm_read(kd, (u_long)strp + n, &ret[n], 1) != 1) 1716 xo_errx(1, "%s: %s", __func__, kvm_geterr(kd)); 1717 } while (ret[n++] != '\0'); 1718 return (ret); 1719 } 1720 1721 static void 1722 usage(void) 1723 { 1724 xo_error("%s%s", 1725 "usage: vmstat [-afHhimoPsz] [-M core [-N system]] [-c count] [-n devs]\n", 1726 " [-p type,if,pass] [-w wait] [disks] [wait [count]]\n"); 1727 xo_finish(); 1728 exit(1); 1729 } 1730