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