1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1980, 1986, 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #ifndef lint 33 static const char copyright[] = 34 "@(#) Copyright (c) 1980, 1986, 1991, 1993\n\ 35 The Regents of the University of California. All rights reserved.\n"; 36 #endif /* not lint */ 37 38 #if 0 39 #ifndef lint 40 static char sccsid[] = "@(#)vmstat.c 8.1 (Berkeley) 6/6/93"; 41 #endif /* not lint */ 42 #endif 43 44 #include <sys/cdefs.h> 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 #define _WANT_VMMETER 58 #include <sys/vmmeter.h> 59 #include <sys/pcpu.h> 60 61 #include <vm/vm_param.h> 62 63 #include <ctype.h> 64 #include <devstat.h> 65 #include <err.h> 66 #include <errno.h> 67 #include <inttypes.h> 68 #include <kvm.h> 69 #include <limits.h> 70 #include <memstat.h> 71 #include <nlist.h> 72 #include <paths.h> 73 #include <stdio.h> 74 #include <stdlib.h> 75 #include <string.h> 76 #include <sysexits.h> 77 #include <time.h> 78 #include <unistd.h> 79 #include <libutil.h> 80 #include <libxo/xo.h> 81 82 #define VMSTAT_XO_VERSION "1" 83 84 static char da[] = "da"; 85 86 enum x_stats { X_SUM, X_HZ, X_STATHZ, X_NCHSTATS, X_INTRNAMES, X_SINTRNAMES, 87 X_INTRCNT, X_SINTRCNT, X_NINTRCNT }; 88 89 static struct nlist namelist[] = { 90 [X_SUM] = { .n_name = "_vm_cnt", }, 91 [X_HZ] = { .n_name = "_hz", }, 92 [X_STATHZ] = { .n_name = "_stathz", }, 93 [X_NCHSTATS] = { .n_name = "_nchstats", }, 94 [X_INTRNAMES] = { .n_name = "_intrnames", }, 95 [X_SINTRNAMES] = { .n_name = "_sintrnames", }, 96 [X_INTRCNT] = { .n_name = "_intrcnt", }, 97 [X_SINTRCNT] = { .n_name = "_sintrcnt", }, 98 [X_NINTRCNT] = { .n_name = "_nintrcnt", }, 99 { .n_name = NULL, }, 100 }; 101 102 static struct devstat_match *matches; 103 static struct device_selection *dev_select; 104 static struct statinfo cur, last; 105 static devstat_select_mode select_mode; 106 static size_t size_cp_times; 107 static long *cur_cp_times, *last_cp_times; 108 static long generation, select_generation; 109 static int hz, hdrcnt, maxshowdevs; 110 static int num_devices, num_devices_specified; 111 static int num_matches, num_selected, num_selections; 112 static char **specified_devices; 113 114 static struct __vmmeter { 115 uint64_t v_swtch; 116 uint64_t v_trap; 117 uint64_t v_syscall; 118 uint64_t v_intr; 119 uint64_t v_soft; 120 uint64_t v_vm_faults; 121 uint64_t v_io_faults; 122 uint64_t v_cow_faults; 123 uint64_t v_cow_optim; 124 uint64_t v_zfod; 125 uint64_t v_ozfod; 126 uint64_t v_swapin; 127 uint64_t v_swapout; 128 uint64_t v_swappgsin; 129 uint64_t v_swappgsout; 130 uint64_t v_vnodein; 131 uint64_t v_vnodeout; 132 uint64_t v_vnodepgsin; 133 uint64_t v_vnodepgsout; 134 uint64_t v_intrans; 135 uint64_t v_reactivated; 136 uint64_t v_pdwakeups; 137 uint64_t v_pdpages; 138 uint64_t v_pdshortfalls; 139 uint64_t v_dfree; 140 uint64_t v_pfree; 141 uint64_t v_tfree; 142 uint64_t v_forks; 143 uint64_t v_vforks; 144 uint64_t v_rforks; 145 uint64_t v_kthreads; 146 uint64_t v_forkpages; 147 uint64_t v_vforkpages; 148 uint64_t v_rforkpages; 149 uint64_t v_kthreadpages; 150 u_int v_page_size; 151 u_int v_page_count; 152 u_int v_free_reserved; 153 u_int v_free_target; 154 u_int v_free_min; 155 u_int v_free_count; 156 u_int v_wire_count; 157 u_long v_user_wire_count; 158 u_int v_active_count; 159 u_int v_inactive_target; 160 u_int v_inactive_count; 161 u_int v_laundry_count; 162 u_int v_pageout_free_min; 163 u_int v_interrupt_free_min; 164 u_int v_free_severe; 165 } sum, osum; 166 167 #define VMSTAT_DEFAULT_LINES 20 /* Default number of `winlines'. */ 168 static volatile sig_atomic_t wresized; /* Tty resized when non-zero. */ 169 static int winlines = VMSTAT_DEFAULT_LINES; /* Current number of tty rows. */ 170 171 static int aflag; 172 static int nflag; 173 static int Pflag; 174 static int hflag; 175 176 static kvm_t *kd; 177 178 #define FORKSTAT 0x01 179 #define INTRSTAT 0x02 180 #define MEMSTAT 0x04 181 #define SUMSTAT 0x08 182 #define TIMESTAT 0x10 183 #define VMSTAT 0x20 184 #define ZMEMSTAT 0x40 185 #define OBJSTAT 0x80 186 187 static void cpustats(void); 188 static void pcpustats(u_long, int); 189 static void devstats(void); 190 static void doforkst(void); 191 static void dointr(unsigned int, int); 192 static void doobjstat(void); 193 static void dosum(void); 194 static void dovmstat(unsigned int, int); 195 static void domemstat_malloc(void); 196 static void domemstat_zone(void); 197 static void kread(int, void *, size_t); 198 static void kreado(int, void *, size_t, size_t); 199 static void kreadptr(uintptr_t, void *, size_t); 200 static void needhdr(int); 201 static void needresize(int); 202 static void doresize(void); 203 static void printhdr(int, u_long); 204 static void usage(void); 205 206 static long pct(long, long); 207 static long long getuptime(void); 208 209 static char **getdrivedata(char **); 210 211 int 212 main(int argc, char *argv[]) 213 { 214 char *bp, *buf, *memf, *nlistf; 215 float f; 216 int bufsize, c, reps, todo; 217 size_t len; 218 unsigned int interval; 219 char errbuf[_POSIX2_LINE_MAX]; 220 221 memf = nlistf = NULL; 222 interval = reps = todo = 0; 223 maxshowdevs = 2; 224 225 argc = xo_parse_args(argc, argv); 226 if (argc < 0) 227 return (argc); 228 229 hflag = (xo_get_style(NULL) == XO_STYLE_TEXT) && isatty(1); 230 231 while ((c = getopt(argc, argv, "ac:fhHiM:mN:n:oPp:sw:z")) != -1) { 232 switch (c) { 233 case 'a': 234 aflag++; 235 break; 236 case 'c': 237 reps = atoi(optarg); 238 break; 239 case 'P': 240 Pflag++; 241 break; 242 case 'f': 243 todo |= FORKSTAT; 244 break; 245 case 'h': 246 hflag = 1; 247 break; 248 case 'H': 249 hflag = 0; 250 break; 251 case 'i': 252 todo |= INTRSTAT; 253 break; 254 case 'M': 255 memf = optarg; 256 break; 257 case 'm': 258 todo |= MEMSTAT; 259 break; 260 case 'N': 261 nlistf = optarg; 262 break; 263 case 'n': 264 nflag = 1; 265 maxshowdevs = atoi(optarg); 266 if (maxshowdevs < 0) 267 xo_errx(1, "number of devices %d is < 0", 268 maxshowdevs); 269 break; 270 case 'o': 271 todo |= OBJSTAT; 272 break; 273 case 'p': 274 if (devstat_buildmatch(optarg, &matches, &num_matches) 275 != 0) 276 xo_errx(1, "%s", devstat_errbuf); 277 break; 278 case 's': 279 todo |= SUMSTAT; 280 break; 281 case 'w': 282 /* Convert to milliseconds. */ 283 f = atof(optarg); 284 interval = f * 1000; 285 break; 286 case 'z': 287 todo |= ZMEMSTAT; 288 break; 289 case '?': 290 default: 291 usage(); 292 } 293 } 294 argc -= optind; 295 argv += optind; 296 297 xo_set_version(VMSTAT_XO_VERSION); 298 if (todo == 0) 299 todo = VMSTAT; 300 301 if (memf != NULL) { 302 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf); 303 if (kd == NULL) 304 xo_errx(1, "kvm_openfiles: %s", errbuf); 305 } 306 307 retry_nlist: 308 if (kd != NULL && (c = kvm_nlist(kd, namelist)) != 0) { 309 if (c > 0) { 310 bufsize = 0; 311 len = 0; 312 313 /* 314 * 'cnt' was renamed to 'vm_cnt'. If 'vm_cnt' is not 315 * found try looking up older 'cnt' symbol. 316 * */ 317 if (namelist[X_SUM].n_type == 0 && 318 strcmp(namelist[X_SUM].n_name, "_vm_cnt") == 0) { 319 namelist[X_SUM].n_name = "_cnt"; 320 goto retry_nlist; 321 } 322 323 /* 324 * 'nintrcnt' doesn't exist in older kernels, but 325 * that isn't fatal. 326 */ 327 if (namelist[X_NINTRCNT].n_type == 0 && c == 1) 328 goto nlist_ok; 329 330 for (c = 0; c < (int)(nitems(namelist)); c++) 331 if (namelist[c].n_type == 0) 332 bufsize += strlen(namelist[c].n_name) 333 + 1; 334 bufsize += len + 1; 335 buf = bp = alloca(bufsize); 336 337 for (c = 0; c < (int)(nitems(namelist)); c++) 338 if (namelist[c].n_type == 0) { 339 xo_error(" %s", 340 namelist[c].n_name); 341 len = strlen(namelist[c].n_name); 342 *bp++ = ' '; 343 memcpy(bp, namelist[c].n_name, len); 344 bp += len; 345 } 346 *bp = '\0'; 347 xo_error("undefined symbols:\n", buf); 348 } else 349 xo_warnx("kvm_nlist: %s", kvm_geterr(kd)); 350 xo_finish(); 351 exit(1); 352 } 353 nlist_ok: 354 if (kd && Pflag) 355 xo_errx(1, "Cannot use -P with crash dumps"); 356 357 if (todo & VMSTAT) { 358 /* 359 * Make sure that the userland devstat version matches the 360 * kernel devstat version. If not, exit and print a 361 * message informing the user of his mistake. 362 */ 363 if (devstat_checkversion(NULL) < 0) 364 xo_errx(1, "%s", devstat_errbuf); 365 366 367 argv = getdrivedata(argv); 368 } 369 370 if (*argv) { 371 f = atof(*argv); 372 interval = f * 1000; 373 if (*++argv) 374 reps = atoi(*argv); 375 } 376 377 if (interval) { 378 if (!reps) 379 reps = -1; 380 } else if (reps) 381 interval = 1 * 1000; 382 383 if (todo & FORKSTAT) 384 doforkst(); 385 if (todo & MEMSTAT) 386 domemstat_malloc(); 387 if (todo & ZMEMSTAT) 388 domemstat_zone(); 389 if (todo & SUMSTAT) 390 dosum(); 391 if (todo & OBJSTAT) 392 doobjstat(); 393 if (todo & INTRSTAT) 394 dointr(interval, reps); 395 if (todo & VMSTAT) 396 dovmstat(interval, reps); 397 xo_finish(); 398 exit(0); 399 } 400 401 static int 402 mysysctl(const char *name, void *oldp, size_t *oldlenp) 403 { 404 int error; 405 406 error = sysctlbyname(name, oldp, oldlenp, NULL, 0); 407 if (error != 0 && errno != ENOMEM) 408 xo_err(1, "sysctl(%s)", name); 409 return (error); 410 } 411 412 static char ** 413 getdrivedata(char **argv) 414 { 415 416 if ((num_devices = devstat_getnumdevs(NULL)) < 0) 417 xo_errx(1, "%s", devstat_errbuf); 418 419 cur.dinfo = (struct devinfo *)calloc(1, sizeof(struct devinfo)); 420 last.dinfo = (struct devinfo *)calloc(1, sizeof(struct devinfo)); 421 422 if (devstat_getdevs(NULL, &cur) == -1) 423 xo_errx(1, "%s", devstat_errbuf); 424 425 num_devices = cur.dinfo->numdevs; 426 generation = cur.dinfo->generation; 427 428 specified_devices = malloc(sizeof(char *)); 429 for (num_devices_specified = 0; *argv; ++argv) { 430 if (isdigit(**argv)) 431 break; 432 num_devices_specified++; 433 specified_devices = reallocf(specified_devices, 434 sizeof(char *) * num_devices_specified); 435 if (specified_devices == NULL) { 436 xo_errx(1, "%s", "reallocf (specified_devices)"); 437 } 438 specified_devices[num_devices_specified - 1] = *argv; 439 } 440 dev_select = NULL; 441 442 if (nflag == 0 && maxshowdevs < num_devices_specified) 443 maxshowdevs = num_devices_specified; 444 445 /* 446 * People are generally only interested in disk statistics when 447 * they're running vmstat. So, that's what we're going to give 448 * them if they don't specify anything by default. We'll also give 449 * them any other random devices in the system so that we get to 450 * maxshowdevs devices, if that many devices exist. If the user 451 * specifies devices on the command line, either through a pattern 452 * match or by naming them explicitly, we will give the user only 453 * those devices. 454 */ 455 if ((num_devices_specified == 0) && (num_matches == 0)) { 456 if (devstat_buildmatch(da, &matches, &num_matches) != 0) 457 xo_errx(1, "%s", devstat_errbuf); 458 select_mode = DS_SELECT_ADD; 459 } else 460 select_mode = DS_SELECT_ONLY; 461 462 /* 463 * At this point, selectdevs will almost surely indicate that the 464 * device list has changed, so we don't look for return values of 0 465 * or 1. If we get back -1, though, there is an error. 466 */ 467 if (devstat_selectdevs(&dev_select, &num_selected, &num_selections, 468 &select_generation, generation, cur.dinfo->devices, 469 num_devices, matches, num_matches, specified_devices, 470 num_devices_specified, select_mode, 471 maxshowdevs, 0) == -1) 472 xo_errx(1, "%s", devstat_errbuf); 473 474 return(argv); 475 } 476 477 /* Return system uptime in nanoseconds */ 478 static long long 479 getuptime(void) 480 { 481 struct timespec sp; 482 483 (void)clock_gettime(CLOCK_UPTIME, &sp); 484 return((long long)sp.tv_sec * 1000000000LL + sp.tv_nsec); 485 } 486 487 static void 488 fill_vmmeter(struct __vmmeter *vmmp) 489 { 490 struct vmmeter vm_cnt; 491 size_t size; 492 493 if (kd != NULL) { 494 kread(X_SUM, &vm_cnt, sizeof(vm_cnt)); 495 #define GET_COUNTER(name) \ 496 vmmp->name = kvm_counter_u64_fetch(kd, (u_long)vm_cnt.name) 497 GET_COUNTER(v_swtch); 498 GET_COUNTER(v_trap); 499 GET_COUNTER(v_syscall); 500 GET_COUNTER(v_intr); 501 GET_COUNTER(v_soft); 502 GET_COUNTER(v_vm_faults); 503 GET_COUNTER(v_io_faults); 504 GET_COUNTER(v_cow_faults); 505 GET_COUNTER(v_cow_optim); 506 GET_COUNTER(v_zfod); 507 GET_COUNTER(v_ozfod); 508 GET_COUNTER(v_swapin); 509 GET_COUNTER(v_swapout); 510 GET_COUNTER(v_swappgsin); 511 GET_COUNTER(v_swappgsout); 512 GET_COUNTER(v_vnodein); 513 GET_COUNTER(v_vnodeout); 514 GET_COUNTER(v_vnodepgsin); 515 GET_COUNTER(v_vnodepgsout); 516 GET_COUNTER(v_intrans); 517 GET_COUNTER(v_tfree); 518 GET_COUNTER(v_forks); 519 GET_COUNTER(v_vforks); 520 GET_COUNTER(v_rforks); 521 GET_COUNTER(v_kthreads); 522 GET_COUNTER(v_forkpages); 523 GET_COUNTER(v_vforkpages); 524 GET_COUNTER(v_rforkpages); 525 GET_COUNTER(v_kthreadpages); 526 #undef GET_COUNTER 527 } else { 528 #define GET_VM_STATS(cat, name) do { \ 529 size = sizeof(vmmp->name); \ 530 mysysctl("vm.stats." #cat "." #name, &vmmp->name, &size); \ 531 } while (0) 532 /* sys */ 533 GET_VM_STATS(sys, v_swtch); 534 GET_VM_STATS(sys, v_trap); 535 GET_VM_STATS(sys, v_syscall); 536 GET_VM_STATS(sys, v_intr); 537 GET_VM_STATS(sys, v_soft); 538 539 /* vm */ 540 GET_VM_STATS(vm, v_vm_faults); 541 GET_VM_STATS(vm, v_io_faults); 542 GET_VM_STATS(vm, v_cow_faults); 543 GET_VM_STATS(vm, v_cow_optim); 544 GET_VM_STATS(vm, v_zfod); 545 GET_VM_STATS(vm, v_ozfod); 546 GET_VM_STATS(vm, v_swapin); 547 GET_VM_STATS(vm, v_swapout); 548 GET_VM_STATS(vm, v_swappgsin); 549 GET_VM_STATS(vm, v_swappgsout); 550 GET_VM_STATS(vm, v_vnodein); 551 GET_VM_STATS(vm, v_vnodeout); 552 GET_VM_STATS(vm, v_vnodepgsin); 553 GET_VM_STATS(vm, v_vnodepgsout); 554 GET_VM_STATS(vm, v_intrans); 555 GET_VM_STATS(vm, v_reactivated); 556 GET_VM_STATS(vm, v_pdwakeups); 557 GET_VM_STATS(vm, v_pdpages); 558 GET_VM_STATS(vm, v_pdshortfalls); 559 GET_VM_STATS(vm, v_dfree); 560 GET_VM_STATS(vm, v_pfree); 561 GET_VM_STATS(vm, v_tfree); 562 GET_VM_STATS(vm, v_page_size); 563 GET_VM_STATS(vm, v_page_count); 564 GET_VM_STATS(vm, v_free_reserved); 565 GET_VM_STATS(vm, v_free_target); 566 GET_VM_STATS(vm, v_free_min); 567 GET_VM_STATS(vm, v_free_count); 568 GET_VM_STATS(vm, v_wire_count); 569 GET_VM_STATS(vm, v_user_wire_count); 570 GET_VM_STATS(vm, v_active_count); 571 GET_VM_STATS(vm, v_inactive_target); 572 GET_VM_STATS(vm, v_inactive_count); 573 GET_VM_STATS(vm, v_laundry_count); 574 GET_VM_STATS(vm, v_pageout_free_min); 575 GET_VM_STATS(vm, v_interrupt_free_min); 576 /*GET_VM_STATS(vm, v_free_severe);*/ 577 GET_VM_STATS(vm, v_forks); 578 GET_VM_STATS(vm, v_vforks); 579 GET_VM_STATS(vm, v_rforks); 580 GET_VM_STATS(vm, v_kthreads); 581 GET_VM_STATS(vm, v_forkpages); 582 GET_VM_STATS(vm, v_vforkpages); 583 GET_VM_STATS(vm, v_rforkpages); 584 GET_VM_STATS(vm, v_kthreadpages); 585 #undef GET_VM_STATS 586 } 587 } 588 589 static void 590 fill_vmtotal(struct vmtotal *vmtp) 591 { 592 size_t size; 593 594 if (kd != NULL) { 595 /* XXX fill vmtp */ 596 xo_errx(1, "not implemented"); 597 } else { 598 size = sizeof(*vmtp); 599 mysysctl("vm.vmtotal", vmtp, &size); 600 if (size != sizeof(*vmtp)) 601 xo_errx(1, "vm.total size mismatch"); 602 } 603 } 604 605 /* Determine how many cpu columns, and what index they are in kern.cp_times */ 606 static void 607 getcpuinfo(u_long *maskp, int *maxidp) 608 { 609 long *times; 610 u_long mask; 611 size_t size; 612 int empty, i, j, maxcpu, maxid; 613 614 if (kd != NULL) 615 xo_errx(1, "not implemented"); 616 mask = 0; 617 size = sizeof(maxcpu); 618 mysysctl("kern.smp.maxcpus", &maxcpu, &size); 619 if (size != sizeof(maxcpu)) 620 xo_errx(1, "sysctl kern.smp.maxcpus"); 621 size = sizeof(long) * maxcpu * CPUSTATES; 622 times = malloc(size); 623 if (times == NULL) 624 xo_err(1, "malloc %zd bytes", size); 625 mysysctl("kern.cp_times", times, &size); 626 maxid = (size / CPUSTATES / sizeof(long)) - 1; 627 for (i = 0; i <= maxid; i++) { 628 empty = 1; 629 for (j = 0; empty && j < CPUSTATES; j++) { 630 if (times[i * CPUSTATES + j] != 0) 631 empty = 0; 632 } 633 if (!empty) 634 mask |= (1ul << i); 635 } 636 if (maskp) 637 *maskp = mask; 638 if (maxidp) 639 *maxidp = maxid; 640 } 641 642 643 static void 644 prthuman(const char *name, uint64_t val, int size, int flags) 645 { 646 char buf[10]; 647 char fmt[128]; 648 649 snprintf(fmt, sizeof(fmt), "{:%s/%%*s}", name); 650 651 if (size < 5 || size > 9) 652 xo_errx(1, "doofus"); 653 flags |= HN_NOSPACE | HN_DECIMAL; 654 humanize_number(buf, size, val, "", HN_AUTOSCALE, flags); 655 xo_attr("value", "%ju", (uintmax_t) val); 656 xo_emit(fmt, size, buf); 657 } 658 659 static void 660 dovmstat(unsigned int interval, int reps) 661 { 662 struct clockinfo clockrate; 663 struct vmtotal total; 664 struct devinfo *tmp_dinfo; 665 u_long cpumask; 666 size_t size; 667 time_t uptime, halfuptime; 668 int maxid, rate_adj, retval; 669 670 uptime = getuptime() / 1000000000LL; 671 halfuptime = uptime / 2; 672 rate_adj = 1; 673 maxid = 0; 674 cpumask = 0; 675 676 /* 677 * If the user stops the program (control-Z) and then resumes it, 678 * print out the header again. 679 */ 680 (void)signal(SIGCONT, needhdr); 681 682 /* 683 * If our standard output is a tty, then install a SIGWINCH handler 684 * and set wresized so that our first iteration through the main 685 * vmstat loop will peek at the terminal's current rows to find out 686 * how many lines can fit in a screenful of output. 687 */ 688 if (isatty(fileno(stdout)) != 0) { 689 wresized = 1; 690 (void)signal(SIGWINCH, needresize); 691 } else { 692 wresized = 0; 693 winlines = VMSTAT_DEFAULT_LINES; 694 } 695 696 if (kd != NULL) { 697 if (namelist[X_STATHZ].n_type != 0 && 698 namelist[X_STATHZ].n_value != 0) 699 kread(X_STATHZ, &hz, sizeof(hz)); 700 if (!hz) 701 kread(X_HZ, &hz, sizeof(hz)); 702 } else { 703 size = sizeof(clockrate); 704 mysysctl("kern.clockrate", &clockrate, &size); 705 if (size != sizeof(clockrate)) 706 xo_errx(1, "clockrate size mismatch"); 707 hz = clockrate.hz; 708 } 709 710 if (Pflag) { 711 getcpuinfo(&cpumask, &maxid); 712 size_cp_times = sizeof(long) * (maxid + 1) * CPUSTATES; 713 cur_cp_times = calloc(1, size_cp_times); 714 last_cp_times = calloc(1, size_cp_times); 715 } 716 for (hdrcnt = 1;;) { 717 if (!--hdrcnt) 718 printhdr(maxid, cpumask); 719 if (kd != NULL) { 720 if (kvm_getcptime(kd, cur.cp_time) < 0) 721 xo_errx(1, "kvm_getcptime: %s", kvm_geterr(kd)); 722 } else { 723 size = sizeof(cur.cp_time); 724 mysysctl("kern.cp_time", &cur.cp_time, &size); 725 if (size != sizeof(cur.cp_time)) 726 xo_errx(1, "cp_time size mismatch"); 727 } 728 if (Pflag) { 729 size = size_cp_times; 730 mysysctl("kern.cp_times", cur_cp_times, &size); 731 if (size != size_cp_times) 732 xo_errx(1, "cp_times mismatch"); 733 } 734 735 tmp_dinfo = last.dinfo; 736 last.dinfo = cur.dinfo; 737 cur.dinfo = tmp_dinfo; 738 last.snap_time = cur.snap_time; 739 740 /* 741 * Here what we want to do is refresh our device stats. 742 * getdevs() returns 1 when the device list has changed. 743 * If the device list has changed, we want to go through 744 * the selection process again, in case a device that we 745 * were previously displaying has gone away. 746 */ 747 switch (devstat_getdevs(NULL, &cur)) { 748 case -1: 749 xo_errx(1, "%s", devstat_errbuf); 750 break; 751 case 1: 752 num_devices = cur.dinfo->numdevs; 753 generation = cur.dinfo->generation; 754 755 retval = devstat_selectdevs(&dev_select, &num_selected, 756 &num_selections, &select_generation, 757 generation, cur.dinfo->devices, 758 num_devices, matches, num_matches, 759 specified_devices, 760 num_devices_specified, select_mode, 761 maxshowdevs, 0); 762 switch (retval) { 763 case -1: 764 xo_errx(1, "%s", devstat_errbuf); 765 break; 766 case 1: 767 printhdr(maxid, cpumask); 768 break; 769 default: 770 break; 771 } 772 break; 773 default: 774 break; 775 } 776 777 fill_vmmeter(&sum); 778 fill_vmtotal(&total); 779 xo_open_container("processes"); 780 xo_emit("{:runnable/%2d} {:waiting/%2ld} " 781 "{:swapped-out/%2ld}", total.t_rq - 1, total.t_dw + 782 total.t_pw, total.t_sw); 783 xo_close_container("processes"); 784 xo_open_container("memory"); 785 #define vmstat_pgtok(a) ((uintmax_t)(a) * (sum.v_page_size >> 10)) 786 #define rate(x) (unsigned long)(((x) * rate_adj + halfuptime) / uptime) 787 if (hflag) { 788 prthuman("available-memory", 789 total.t_avm * (uint64_t)sum.v_page_size, 5, HN_B); 790 prthuman("free-memory", 791 total.t_free * (uint64_t)sum.v_page_size, 5, HN_B); 792 prthuman("total-page-faults", 793 rate(sum.v_vm_faults - osum.v_vm_faults), 5, 0); 794 xo_emit(" "); 795 } else { 796 xo_emit(" "); 797 xo_emit("{:available-memory/%7ju}", 798 vmstat_pgtok(total.t_avm)); 799 xo_emit(" "); 800 xo_emit("{:free-memory/%7ju}", 801 vmstat_pgtok(total.t_free)); 802 xo_emit(" "); 803 xo_emit("{:total-page-faults/%5lu} ", 804 rate(sum.v_vm_faults - osum.v_vm_faults)); 805 } 806 xo_close_container("memory"); 807 808 xo_open_container("paging-rates"); 809 xo_emit("{:page-reactivated/%3lu} ", 810 rate(sum.v_reactivated - osum.v_reactivated)); 811 xo_emit("{:paged-in/%3lu} ", 812 rate(sum.v_swapin + sum.v_vnodein - 813 (osum.v_swapin + osum.v_vnodein))); 814 xo_emit("{:paged-out/%3lu}", 815 rate(sum.v_swapout + sum.v_vnodeout - 816 (osum.v_swapout + osum.v_vnodeout))); 817 if (hflag) { 818 prthuman("freed", 819 rate(sum.v_tfree - osum.v_tfree), 5, 0); 820 prthuman("scanned", 821 rate(sum.v_pdpages - osum.v_pdpages), 5, 0); 822 } else { 823 xo_emit(" "); 824 xo_emit("{:freed/%5lu} ", 825 rate(sum.v_tfree - osum.v_tfree)); 826 xo_emit("{:scanned/%4lu}", 827 rate(sum.v_pdpages - osum.v_pdpages)); 828 } 829 xo_close_container("paging-rates"); 830 831 devstats(); 832 xo_open_container("fault-rates"); 833 if (hflag) { 834 prthuman("interrupts", 835 rate(sum.v_intr - osum.v_intr), 5, 0); 836 prthuman("system-calls", 837 rate(sum.v_syscall - osum.v_syscall), 5, 0); 838 prthuman("context-switches", 839 rate(sum.v_swtch - osum.v_swtch), 5, 0); 840 } else { 841 xo_emit(" "); 842 xo_emit("{:interrupts/%4lu} " 843 "{:system-calls/%5lu} " 844 "{:context-switches/%5lu}", 845 rate(sum.v_intr - osum.v_intr), 846 rate(sum.v_syscall - osum.v_syscall), 847 rate(sum.v_swtch - osum.v_swtch)); 848 } 849 xo_close_container("fault-rates"); 850 if (Pflag) 851 pcpustats(cpumask, maxid); 852 else 853 cpustats(); 854 xo_emit("\n"); 855 xo_flush(); 856 if (reps >= 0 && --reps <= 0) 857 break; 858 osum = sum; 859 uptime = interval; 860 rate_adj = 1000; 861 /* 862 * We round upward to avoid losing low-frequency events 863 * (i.e., >= 1 per interval but < 1 per millisecond). 864 */ 865 if (interval != 1) 866 halfuptime = (uptime + 1) / 2; 867 else 868 halfuptime = 0; 869 (void)usleep(interval * 1000); 870 } 871 } 872 873 static void 874 printhdr(int maxid, u_long cpumask) 875 { 876 int i, num_shown; 877 878 num_shown = MIN(num_selected, maxshowdevs); 879 if (hflag) 880 xo_emit(" {T:procs} {T:memory} {T:/page%*s}", 19, ""); 881 else 882 xo_emit("{T:procs} {T:memory} {T:/page%*s}", 19, ""); 883 if (num_shown > 1) 884 xo_emit(" {T:/disks %*s} ", num_shown * 5 - 7, ""); 885 else if (num_shown == 1) 886 xo_emit(" {T:disks} "); 887 xo_emit(" {T:faults} "); 888 if (Pflag) { 889 for (i = 0; i <= maxid; i++) { 890 if (cpumask & (1ul << i)) 891 xo_emit(" {T:/cpu%d} ", i); 892 } 893 xo_emit("\n"); 894 } else 895 xo_emit(" {T:cpu}\n"); 896 if (hflag) { 897 xo_emit(" {T:r} {T:b} {T:w} {T:avm} {T:fre} {T:flt} {T:re}" 898 " {T:pi} {T:po} {T:fr} {T:sr} "); 899 } else { 900 xo_emit("{T:r} {T:b} {T:w} {T:avm} {T:fre} {T:flt} " 901 "{T:re} {T:pi} {T:po} {T:fr} {T:sr} "); 902 } 903 for (i = 0; i < num_devices; i++) 904 if ((dev_select[i].selected) && 905 (dev_select[i].selected <= maxshowdevs)) 906 xo_emit("{T:/%3.3s%d} ", dev_select[i].device_name, 907 dev_select[i].unit_number); 908 xo_emit(" {T:in} {T:sy} {T:cs}"); 909 if (Pflag) { 910 for (i = 0; i <= maxid; i++) { 911 if (cpumask & (1ul << i)) 912 xo_emit(" {T:us} {T:sy} {T:id}"); 913 } 914 xo_emit("\n"); 915 } else 916 xo_emit(" {T:us} {T:sy} {T:id}\n"); 917 if (wresized != 0) 918 doresize(); 919 hdrcnt = winlines; 920 } 921 922 /* 923 * Force a header to be prepended to the next output. 924 */ 925 static void 926 needhdr(int dummy __unused) 927 { 928 929 hdrcnt = 1; 930 } 931 932 /* 933 * When the terminal is resized, force an update of the maximum number of rows 934 * printed between each header repetition. Then force a new header to be 935 * prepended to the next output. 936 */ 937 void 938 needresize(int signo __unused) 939 { 940 941 wresized = 1; 942 hdrcnt = 1; 943 } 944 945 /* 946 * Update the global `winlines' count of terminal rows. 947 */ 948 void 949 doresize(void) 950 { 951 struct winsize w; 952 int status; 953 954 for (;;) { 955 status = ioctl(fileno(stdout), TIOCGWINSZ, &w); 956 if (status == -1 && errno == EINTR) 957 continue; 958 else if (status == -1) 959 xo_err(1, "ioctl"); 960 if (w.ws_row > 3) 961 winlines = w.ws_row - 3; 962 else 963 winlines = VMSTAT_DEFAULT_LINES; 964 break; 965 } 966 967 /* 968 * Inhibit doresize() calls until we are rescheduled by SIGWINCH. 969 */ 970 wresized = 0; 971 } 972 973 static long 974 pct(long top, long bot) 975 { 976 long ans; 977 978 if (bot == 0) 979 return(0); 980 ans = (quad_t)top * 100 / bot; 981 return (ans); 982 } 983 984 #define PCT(top, bot) pct((long)(top), (long)(bot)) 985 986 static void 987 dosum(void) 988 { 989 struct nchstats lnchstats; 990 size_t size; 991 long nchtotal; 992 993 fill_vmmeter(&sum); 994 xo_open_container("summary-statistics"); 995 xo_emit("{:context-switches/%9u} {N:cpu context switches}\n", 996 sum.v_swtch); 997 xo_emit("{:interrupts/%9u} {N:device interrupts}\n", 998 sum.v_intr); 999 xo_emit("{:software-interrupts/%9u} {N:software interrupts}\n", 1000 sum.v_soft); 1001 xo_emit("{:traps/%9u} {N:traps}\n", sum.v_trap); 1002 xo_emit("{:system-calls/%9u} {N:system calls}\n", 1003 sum.v_syscall); 1004 xo_emit("{:kernel-threads/%9u} {N:kernel threads created}\n", 1005 sum.v_kthreads); 1006 xo_emit("{:forks/%9u} {N: fork() calls}\n", sum.v_forks); 1007 xo_emit("{:vforks/%9u} {N:vfork() calls}\n", 1008 sum.v_vforks); 1009 xo_emit("{:rforks/%9u} {N:rfork() calls}\n", 1010 sum.v_rforks); 1011 xo_emit("{:swap-ins/%9u} {N:swap pager pageins}\n", 1012 sum.v_swapin); 1013 xo_emit("{:swap-in-pages/%9u} {N:swap pager pages paged in}\n", 1014 sum.v_swappgsin); 1015 xo_emit("{:swap-outs/%9u} {N:swap pager pageouts}\n", 1016 sum.v_swapout); 1017 xo_emit("{:swap-out-pages/%9u} {N:swap pager pages paged out}\n", 1018 sum.v_swappgsout); 1019 xo_emit("{:vnode-page-ins/%9u} {N:vnode pager pageins}\n", 1020 sum.v_vnodein); 1021 xo_emit("{:vnode-page-in-pages/%9u} {N:vnode pager pages paged in}\n", 1022 sum.v_vnodepgsin); 1023 xo_emit("{:vnode-page-outs/%9u} {N:vnode pager pageouts}\n", 1024 sum.v_vnodeout); 1025 xo_emit("{:vnode-page-out-pages/%9u} {N:vnode pager pages paged out}\n", 1026 sum.v_vnodepgsout); 1027 xo_emit("{:page-daemon-wakeups/%9u} {N:page daemon wakeups}\n", 1028 sum.v_pdwakeups); 1029 xo_emit("{:page-daemon-pages/%9u} {N:pages examined by the page " 1030 "daemon}\n", sum.v_pdpages); 1031 xo_emit("{:page-reclamation-shortfalls/%9u} {N:clean page reclamation " 1032 "shortfalls}\n", sum.v_pdshortfalls); 1033 xo_emit("{:reactivated/%9u} {N:pages reactivated by the page daemon}\n", 1034 sum.v_reactivated); 1035 xo_emit("{:copy-on-write-faults/%9u} {N:copy-on-write faults}\n", 1036 sum.v_cow_faults); 1037 xo_emit("{:copy-on-write-optimized-faults/%9u} {N:copy-on-write " 1038 "optimized faults}\n", sum.v_cow_optim); 1039 xo_emit("{:zero-fill-pages/%9u} {N:zero fill pages zeroed}\n", 1040 sum.v_zfod); 1041 xo_emit("{:zero-fill-prezeroed/%9u} {N:zero fill pages prezeroed}\n", 1042 sum.v_ozfod); 1043 xo_emit("{:intransit-blocking/%9u} {N:intransit blocking page faults}\n", 1044 sum.v_intrans); 1045 xo_emit("{:total-faults/%9u} {N:total VM faults taken}\n", 1046 sum.v_vm_faults); 1047 xo_emit("{:faults-requiring-io/%9u} {N:page faults requiring I\\/O}\n", 1048 sum.v_io_faults); 1049 xo_emit("{:faults-from-thread-creation/%9u} {N:pages affected by " 1050 "kernel thread creation}\n", sum.v_kthreadpages); 1051 xo_emit("{:faults-from-fork/%9u} {N:pages affected by fork}()\n", 1052 sum.v_forkpages); 1053 xo_emit("{:faults-from-vfork/%9u} {N:pages affected by vfork}()\n", 1054 sum.v_vforkpages); 1055 xo_emit("{:pages-rfork/%9u} {N:pages affected by rfork}()\n", 1056 sum.v_rforkpages); 1057 xo_emit("{:pages-freed/%9u} {N:pages freed}\n", 1058 sum.v_tfree); 1059 xo_emit("{:pages-freed-by-daemon/%9u} {N:pages freed by daemon}\n", 1060 sum.v_dfree); 1061 xo_emit("{:pages-freed-on-exit/%9u} {N:pages freed by exiting processes}\n", 1062 sum.v_pfree); 1063 xo_emit("{:active-pages/%9u} {N:pages active}\n", 1064 sum.v_active_count); 1065 xo_emit("{:inactive-pages/%9u} {N:pages inactive}\n", 1066 sum.v_inactive_count); 1067 xo_emit("{:laundry-pages/%9u} {N:pages in the laundry queue}\n", 1068 sum.v_laundry_count); 1069 xo_emit("{:wired-pages/%9u} {N:pages wired down}\n", 1070 sum.v_wire_count); 1071 xo_emit("{:virtual-user-wired-pages/%9lu} {N:virtual user pages wired " 1072 "down}\n", sum.v_user_wire_count); 1073 xo_emit("{:free-pages/%9u} {N:pages free}\n", 1074 sum.v_free_count); 1075 xo_emit("{:bytes-per-page/%9u} {N:bytes per page}\n", sum.v_page_size); 1076 if (kd != NULL) { 1077 kread(X_NCHSTATS, &lnchstats, sizeof(lnchstats)); 1078 } else { 1079 size = sizeof(lnchstats); 1080 mysysctl("vfs.cache.nchstats", &lnchstats, &size); 1081 if (size != sizeof(lnchstats)) 1082 xo_errx(1, "vfs.cache.nchstats size mismatch"); 1083 } 1084 nchtotal = lnchstats.ncs_goodhits + lnchstats.ncs_neghits + 1085 lnchstats.ncs_badhits + lnchstats.ncs_falsehits + 1086 lnchstats.ncs_miss + lnchstats.ncs_long; 1087 xo_emit("{:total-name-lookups/%9ld} {N:total name lookups}\n", 1088 nchtotal); 1089 xo_emit("{P:/%9s} {N:cache hits} " 1090 "({:positive-cache-hits/%ld}% pos + " 1091 "{:negative-cache-hits/%ld}% {N:neg}) " 1092 "system {:cache-hit-percent/%ld}% per-directory\n", 1093 "", PCT(lnchstats.ncs_goodhits, nchtotal), 1094 PCT(lnchstats.ncs_neghits, nchtotal), 1095 PCT(lnchstats.ncs_pass2, nchtotal)); 1096 xo_emit("{P:/%9s} {L:deletions} {:deletions/%ld}%, " 1097 "{L:falsehits} {:false-hits/%ld}%, " 1098 "{L:toolong} {:too-long/%ld}%\n", "", 1099 PCT(lnchstats.ncs_badhits, nchtotal), 1100 PCT(lnchstats.ncs_falsehits, nchtotal), 1101 PCT(lnchstats.ncs_long, nchtotal)); 1102 xo_close_container("summary-statistics"); 1103 } 1104 1105 static void 1106 doforkst(void) 1107 { 1108 1109 fill_vmmeter(&sum); 1110 xo_open_container("fork-statistics"); 1111 xo_emit("{:fork/%u} {N:forks}, {:fork-pages/%u} {N:pages}, " 1112 "{L:average} {:fork-average/%.2f}\n", 1113 sum.v_forks, sum.v_forkpages, 1114 sum.v_forks == 0 ? 0.0 : 1115 (double)sum.v_forkpages / sum.v_forks); 1116 xo_emit("{:vfork/%u} {N:vforks}, {:vfork-pages/%u} {N:pages}, " 1117 "{L:average} {:vfork-average/%.2f}\n", 1118 sum.v_vforks, sum.v_vforkpages, 1119 sum.v_vforks == 0 ? 0.0 : 1120 (double)sum.v_vforkpages / sum.v_vforks); 1121 xo_emit("{:rfork/%u} {N:rforks}, {:rfork-pages/%u} {N:pages}, " 1122 "{L:average} {:rfork-average/%.2f}\n", 1123 sum.v_rforks, sum.v_rforkpages, 1124 sum.v_rforks == 0 ? 0.0 : 1125 (double)sum.v_rforkpages / sum.v_rforks); 1126 xo_close_container("fork-statistics"); 1127 } 1128 1129 static void 1130 devstats(void) 1131 { 1132 long double busy_seconds, transfers_per_second; 1133 long tmp; 1134 int di, dn, state; 1135 1136 for (state = 0; state < CPUSTATES; ++state) { 1137 tmp = cur.cp_time[state]; 1138 cur.cp_time[state] -= last.cp_time[state]; 1139 last.cp_time[state] = tmp; 1140 } 1141 1142 busy_seconds = cur.snap_time - last.snap_time; 1143 1144 xo_open_list("device"); 1145 for (dn = 0; dn < num_devices; dn++) { 1146 if (dev_select[dn].selected == 0 || 1147 dev_select[dn].selected > maxshowdevs) 1148 continue; 1149 1150 di = dev_select[dn].position; 1151 1152 if (devstat_compute_statistics(&cur.dinfo->devices[di], 1153 &last.dinfo->devices[di], busy_seconds, 1154 DSM_TRANSFERS_PER_SECOND, &transfers_per_second, 1155 DSM_NONE) != 0) 1156 xo_errx(1, "%s", devstat_errbuf); 1157 1158 xo_open_instance("device"); 1159 xo_emit("{ekq:name/%s%d}", 1160 dev_select[dn].device_name, 1161 dev_select[dn].unit_number); 1162 if (hflag) { 1163 prthuman("transfers", (uint64_t)transfers_per_second, 1164 5, HN_DIVISOR_1000); 1165 } else { 1166 xo_emit("{:transfers/%3.0Lf}", transfers_per_second); 1167 } 1168 xo_close_instance("device"); 1169 } 1170 xo_close_list("device"); 1171 } 1172 1173 static void 1174 percent(const char *name, double pctv, int *over) 1175 { 1176 int l; 1177 char buf[10]; 1178 char fmt[128]; 1179 1180 snprintf(fmt, sizeof(fmt), " {:%s/%%*s}", name); 1181 l = snprintf(buf, sizeof(buf), "%.0f", pctv); 1182 if (l == 1 && *over) { 1183 xo_emit(fmt, 1, buf); 1184 (*over)--; 1185 } else 1186 xo_emit(fmt, 2, buf); 1187 if (l > 2) 1188 (*over)++; 1189 } 1190 1191 static void 1192 cpustats(void) 1193 { 1194 double lpct, total; 1195 int state, over; 1196 1197 total = 0; 1198 for (state = 0; state < CPUSTATES; ++state) 1199 total += cur.cp_time[state]; 1200 if (total > 0) 1201 lpct = 100.0 / total; 1202 else 1203 lpct = 0.0; 1204 over = 0; 1205 xo_open_container("cpu-statistics"); 1206 percent("user", (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * lpct, 1207 &over); 1208 percent("system", (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * lpct, 1209 &over); 1210 percent("idle", cur.cp_time[CP_IDLE] * lpct, &over); 1211 xo_close_container("cpu-statistics"); 1212 } 1213 1214 static void 1215 pcpustats(u_long cpumask, int maxid) 1216 { 1217 double lpct, total; 1218 long tmp; 1219 int i, over, state; 1220 1221 /* devstats does this for cp_time */ 1222 for (i = 0; i <= maxid; i++) { 1223 if ((cpumask & (1ul << i)) == 0) 1224 continue; 1225 for (state = 0; state < CPUSTATES; ++state) { 1226 tmp = cur_cp_times[i * CPUSTATES + state]; 1227 cur_cp_times[i * CPUSTATES + state] -= last_cp_times[i * 1228 CPUSTATES + state]; 1229 last_cp_times[i * CPUSTATES + state] = tmp; 1230 } 1231 } 1232 1233 over = 0; 1234 xo_open_list("cpu"); 1235 for (i = 0; i <= maxid; i++) { 1236 if ((cpumask & (1ul << i)) == 0) 1237 continue; 1238 xo_open_instance("cpu"); 1239 xo_emit("{ke:name/%d}", i); 1240 total = 0; 1241 for (state = 0; state < CPUSTATES; ++state) 1242 total += cur_cp_times[i * CPUSTATES + state]; 1243 if (total) 1244 lpct = 100.0 / total; 1245 else 1246 lpct = 0.0; 1247 percent("user", (cur_cp_times[i * CPUSTATES + CP_USER] + 1248 cur_cp_times[i * CPUSTATES + CP_NICE]) * lpct, &over); 1249 percent("system", (cur_cp_times[i * CPUSTATES + CP_SYS] + 1250 cur_cp_times[i * CPUSTATES + CP_INTR]) * lpct, &over); 1251 percent("idle", cur_cp_times[i * CPUSTATES + CP_IDLE] * lpct, 1252 &over); 1253 xo_close_instance("cpu"); 1254 } 1255 xo_close_list("cpu"); 1256 } 1257 1258 static unsigned int 1259 read_intrcnts(unsigned long **intrcnts) 1260 { 1261 size_t intrcntlen; 1262 uintptr_t kaddr; 1263 1264 if (kd != NULL) { 1265 kread(X_SINTRCNT, &intrcntlen, sizeof(intrcntlen)); 1266 if ((*intrcnts = malloc(intrcntlen)) == NULL) 1267 err(1, "malloc()"); 1268 if (namelist[X_NINTRCNT].n_type == 0) 1269 kread(X_INTRCNT, *intrcnts, intrcntlen); 1270 else { 1271 kread(X_INTRCNT, &kaddr, sizeof(kaddr)); 1272 kreadptr(kaddr, *intrcnts, intrcntlen); 1273 } 1274 } else { 1275 for (*intrcnts = NULL, intrcntlen = 1024; ; intrcntlen *= 2) { 1276 *intrcnts = reallocf(*intrcnts, intrcntlen); 1277 if (*intrcnts == NULL) 1278 err(1, "reallocf()"); 1279 if (mysysctl("hw.intrcnt", *intrcnts, &intrcntlen) == 0) 1280 break; 1281 } 1282 } 1283 1284 return (intrcntlen / sizeof(unsigned long)); 1285 } 1286 1287 static void 1288 print_intrcnts(unsigned long *intrcnts, unsigned long *old_intrcnts, 1289 char *intrnames, unsigned int nintr, size_t istrnamlen, long long period_ms) 1290 { 1291 uint64_t inttotal, old_inttotal, total_count, total_rate; 1292 unsigned long count, rate; 1293 unsigned int i; 1294 1295 inttotal = 0; 1296 old_inttotal = 0; 1297 xo_open_list("interrupt"); 1298 for (i = 0; i < nintr; i++) { 1299 if (intrnames[0] != '\0' && (*intrcnts != 0 || aflag)) { 1300 count = *intrcnts - *old_intrcnts; 1301 rate = ((uint64_t)count * 1000 + period_ms / 2) / period_ms; 1302 xo_open_instance("interrupt"); 1303 xo_emit("{d:name/%-*s}{ket:name/%s} " 1304 "{:total/%20lu} {:rate/%10lu}\n", 1305 (int)istrnamlen, intrnames, intrnames, count, rate); 1306 xo_close_instance("interrupt"); 1307 } 1308 intrnames += strlen(intrnames) + 1; 1309 inttotal += *intrcnts++; 1310 old_inttotal += *old_intrcnts++; 1311 } 1312 total_count = inttotal - old_inttotal; 1313 total_rate = (total_count * 1000 + period_ms / 2) / period_ms; 1314 xo_close_list("interrupt"); 1315 xo_emit("{L:/%-*s} {:total-interrupts/%20ju} " 1316 "{:total-rate/%10ju}\n", (int)istrnamlen, 1317 "Total", (uintmax_t)total_count, (uintmax_t)total_rate); 1318 } 1319 1320 static void 1321 dointr(unsigned int interval, int reps) 1322 { 1323 unsigned long *intrcnts, *old_intrcnts; 1324 char *intrname, *intrnames; 1325 long long period_ms, old_uptime, uptime; 1326 size_t clen, inamlen, istrnamlen; 1327 uintptr_t kaddr; 1328 unsigned int nintr; 1329 1330 old_intrcnts = NULL; 1331 uptime = getuptime(); 1332 1333 /* Get the names of each interrupt source */ 1334 if (kd != NULL) { 1335 kread(X_SINTRNAMES, &inamlen, sizeof(inamlen)); 1336 if ((intrnames = malloc(inamlen)) == NULL) 1337 xo_err(1, "malloc()"); 1338 if (namelist[X_NINTRCNT].n_type == 0) 1339 kread(X_INTRNAMES, intrnames, inamlen); 1340 else { 1341 kread(X_INTRNAMES, &kaddr, sizeof(kaddr)); 1342 kreadptr(kaddr, intrnames, inamlen); 1343 } 1344 } else { 1345 for (intrnames = NULL, inamlen = 1024; ; inamlen *= 2) { 1346 if ((intrnames = reallocf(intrnames, inamlen)) == NULL) 1347 xo_err(1, "reallocf()"); 1348 if (mysysctl("hw.intrnames", intrnames, &inamlen) == 0) 1349 break; 1350 } 1351 } 1352 1353 /* Determine the length of the longest interrupt name */ 1354 intrname = intrnames; 1355 istrnamlen = strlen("interrupt"); 1356 while (intrname < intrnames + inamlen) { 1357 clen = strlen(intrname); 1358 if (clen > istrnamlen) 1359 istrnamlen = clen; 1360 intrname += strlen(intrname) + 1; 1361 } 1362 xo_emit("{T:/%-*s} {T:/%20s} {T:/%10s}\n", 1363 (int)istrnamlen, "interrupt", "total", "rate"); 1364 1365 /* 1366 * Loop reps times printing differential interrupt counts. If reps is 1367 * zero, then run just once, printing total counts 1368 */ 1369 xo_open_container("interrupt-statistics"); 1370 1371 period_ms = uptime / 1000000; 1372 while(1) { 1373 nintr = read_intrcnts(&intrcnts); 1374 /* 1375 * Initialize old_intrcnts to 0 for the first pass, so 1376 * print_intrcnts will print total interrupts since boot 1377 */ 1378 if (old_intrcnts == NULL) { 1379 old_intrcnts = calloc(nintr, sizeof(unsigned long)); 1380 if (old_intrcnts == NULL) 1381 xo_err(1, "calloc()"); 1382 } 1383 1384 print_intrcnts(intrcnts, old_intrcnts, intrnames, nintr, 1385 istrnamlen, period_ms); 1386 xo_flush(); 1387 1388 free(old_intrcnts); 1389 old_intrcnts = intrcnts; 1390 if (reps >= 0 && --reps <= 0) 1391 break; 1392 usleep(interval * 1000); 1393 old_uptime = uptime; 1394 uptime = getuptime(); 1395 period_ms = (uptime - old_uptime) / 1000000; 1396 } 1397 1398 xo_close_container("interrupt-statistics"); 1399 } 1400 1401 static void 1402 domemstat_malloc(void) 1403 { 1404 struct memory_type_list *mtlp; 1405 struct memory_type *mtp; 1406 size_t i, zones; 1407 int error, first; 1408 1409 mtlp = memstat_mtl_alloc(); 1410 if (mtlp == NULL) { 1411 xo_warn("memstat_mtl_alloc"); 1412 return; 1413 } 1414 if (kd == NULL) { 1415 if (memstat_sysctl_malloc(mtlp, 0) < 0) { 1416 xo_warnx("memstat_sysctl_malloc: %s", 1417 memstat_strerror(memstat_mtl_geterror(mtlp))); 1418 return; 1419 } 1420 } else { 1421 if (memstat_kvm_malloc(mtlp, kd) < 0) { 1422 error = memstat_mtl_geterror(mtlp); 1423 if (error == MEMSTAT_ERROR_KVM) 1424 xo_warnx("memstat_kvm_malloc: %s", 1425 kvm_geterr(kd)); 1426 else 1427 xo_warnx("memstat_kvm_malloc: %s", 1428 memstat_strerror(error)); 1429 } 1430 } 1431 xo_open_container("malloc-statistics"); 1432 xo_emit("{T:/%13s} {T:/%5s} {T:/%6s} {T:/%8s} {T:Size(s)}\n", 1433 "Type", "InUse", "MemUse", "Requests"); 1434 xo_open_list("memory"); 1435 zones = memstat_malloc_zone_get_count(); 1436 for (mtp = memstat_mtl_first(mtlp); mtp != NULL; 1437 mtp = memstat_mtl_next(mtp)) { 1438 if (memstat_get_numallocs(mtp) == 0 && 1439 memstat_get_count(mtp) == 0) 1440 continue; 1441 xo_open_instance("memory"); 1442 xo_emit("{k:type/%13s/%s} {:in-use/%5ju} " 1443 "{:memory-use/%5ju}{U:K} {:requests/%8ju} ", 1444 memstat_get_name(mtp), (uintmax_t)memstat_get_count(mtp), 1445 ((uintmax_t)memstat_get_bytes(mtp) + 1023) / 1024, 1446 (uintmax_t)memstat_get_numallocs(mtp)); 1447 first = 1; 1448 xo_open_list("size"); 1449 for (i = 0; i < zones; i++) { 1450 if (memstat_malloc_zone_used(mtp, i)) { 1451 if (!first) 1452 xo_emit(","); 1453 xo_emit("{l:size/%d}", memstat_malloc_zone_get_size(i)); 1454 first = 0; 1455 } 1456 } 1457 xo_close_list("size"); 1458 xo_close_instance("memory"); 1459 xo_emit("\n"); 1460 } 1461 xo_close_list("memory"); 1462 xo_close_container("malloc-statistics"); 1463 memstat_mtl_free(mtlp); 1464 } 1465 1466 static void 1467 domemstat_zone(void) 1468 { 1469 struct memory_type_list *mtlp; 1470 struct memory_type *mtp; 1471 int error; 1472 char name[MEMTYPE_MAXNAME + 1]; 1473 1474 mtlp = memstat_mtl_alloc(); 1475 if (mtlp == NULL) { 1476 xo_warn("memstat_mtl_alloc"); 1477 return; 1478 } 1479 if (kd == NULL) { 1480 if (memstat_sysctl_uma(mtlp, 0) < 0) { 1481 xo_warnx("memstat_sysctl_uma: %s", 1482 memstat_strerror(memstat_mtl_geterror(mtlp))); 1483 return; 1484 } 1485 } else { 1486 if (memstat_kvm_uma(mtlp, kd) < 0) { 1487 error = memstat_mtl_geterror(mtlp); 1488 if (error == MEMSTAT_ERROR_KVM) 1489 xo_warnx("memstat_kvm_uma: %s", 1490 kvm_geterr(kd)); 1491 else 1492 xo_warnx("memstat_kvm_uma: %s", 1493 memstat_strerror(error)); 1494 } 1495 } 1496 xo_open_container("memory-zone-statistics"); 1497 xo_emit("{T:/%-20s} {T:/%6s} {T:/%6s} {T:/%8s} {T:/%8s} {T:/%8s} {T:/%8s}" 1498 "{T:/%4s} {T:/%4s}\n", "ITEM", "SIZE", 1499 "LIMIT", "USED", "FREE", "REQ", "FAIL", "SLEEP", "XDOMAIN"); 1500 xo_open_list("zone"); 1501 for (mtp = memstat_mtl_first(mtlp); mtp != NULL; 1502 mtp = memstat_mtl_next(mtp)) { 1503 strlcpy(name, memstat_get_name(mtp), MEMTYPE_MAXNAME); 1504 strcat(name, ":"); 1505 xo_open_instance("zone"); 1506 xo_emit("{d:name/%-20s}{ke:name/%s} {:size/%6ju}, " 1507 "{:limit/%6ju},{:used/%8ju}," 1508 "{:free/%8ju},{:requests/%8ju}," 1509 "{:fail/%4ju},{:sleep/%4ju},{:xdomain/%4ju}\n", name, 1510 memstat_get_name(mtp), 1511 (uintmax_t)memstat_get_size(mtp), 1512 (uintmax_t)memstat_get_countlimit(mtp), 1513 (uintmax_t)memstat_get_count(mtp), 1514 (uintmax_t)memstat_get_free(mtp), 1515 (uintmax_t)memstat_get_numallocs(mtp), 1516 (uintmax_t)memstat_get_failures(mtp), 1517 (uintmax_t)memstat_get_sleeps(mtp), 1518 (uintmax_t)memstat_get_xdomain(mtp)); 1519 xo_close_instance("zone"); 1520 } 1521 memstat_mtl_free(mtlp); 1522 xo_close_list("zone"); 1523 xo_close_container("memory-zone-statistics"); 1524 } 1525 1526 static void 1527 display_object(struct kinfo_vmobject *kvo) 1528 { 1529 const char *str; 1530 1531 xo_open_instance("object"); 1532 xo_emit("{:resident/%5ju} ", (uintmax_t)kvo->kvo_resident); 1533 xo_emit("{:active/%5ju} ", (uintmax_t)kvo->kvo_active); 1534 xo_emit("{:inactive/%5ju} ", (uintmax_t)kvo->kvo_inactive); 1535 xo_emit("{:refcount/%3d} ", kvo->kvo_ref_count); 1536 xo_emit("{:shadowcount/%3d} ", kvo->kvo_shadow_count); 1537 1538 #define MEMATTR_STR(type, val) \ 1539 if (kvo->kvo_memattr == (type)) { \ 1540 str = (val); \ 1541 } else 1542 #ifdef VM_MEMATTR_UNCACHEABLE 1543 MEMATTR_STR(VM_MEMATTR_UNCACHEABLE, "UC") 1544 #endif 1545 #ifdef VM_MEMATTR_WRITE_COMBINING 1546 MEMATTR_STR(VM_MEMATTR_WRITE_COMBINING, "WC") 1547 #endif 1548 #ifdef VM_MEMATTR_WRITE_THROUGH 1549 MEMATTR_STR(VM_MEMATTR_WRITE_THROUGH, "WT") 1550 #endif 1551 #ifdef VM_MEMATTR_WRITE_PROTECTED 1552 MEMATTR_STR(VM_MEMATTR_WRITE_PROTECTED, "WP") 1553 #endif 1554 #ifdef VM_MEMATTR_WRITE_BACK 1555 MEMATTR_STR(VM_MEMATTR_WRITE_BACK, "WB") 1556 #endif 1557 #ifdef VM_MEMATTR_WEAK_UNCACHEABLE 1558 MEMATTR_STR(VM_MEMATTR_WEAK_UNCACHEABLE, "UC-") 1559 #endif 1560 #ifdef VM_MEMATTR_WB_WA 1561 MEMATTR_STR(VM_MEMATTR_WB_WA, "WB") 1562 #endif 1563 #ifdef VM_MEMATTR_NOCACHE 1564 MEMATTR_STR(VM_MEMATTR_NOCACHE, "NC") 1565 #endif 1566 #ifdef VM_MEMATTR_DEVICE 1567 MEMATTR_STR(VM_MEMATTR_DEVICE, "DEV") 1568 #endif 1569 #ifdef VM_MEMATTR_DEVICE_NP 1570 MEMATTR_STR(VM_MEMATTR_DEVICE, "NP") 1571 #endif 1572 #ifdef VM_MEMATTR_CACHEABLE 1573 MEMATTR_STR(VM_MEMATTR_CACHEABLE, "C") 1574 #endif 1575 #ifdef VM_MEMATTR_PREFETCHABLE 1576 MEMATTR_STR(VM_MEMATTR_PREFETCHABLE, "PRE") 1577 #endif 1578 { 1579 str = "??"; 1580 } 1581 #undef MEMATTR_STR 1582 xo_emit("{:attribute/%-3s} ", str); 1583 switch (kvo->kvo_type) { 1584 case KVME_TYPE_NONE: 1585 str = "--"; 1586 break; 1587 case KVME_TYPE_DEFAULT: 1588 str = "df"; 1589 break; 1590 case KVME_TYPE_VNODE: 1591 str = "vn"; 1592 break; 1593 case KVME_TYPE_SWAP: 1594 str = "sw"; 1595 break; 1596 case KVME_TYPE_DEVICE: 1597 str = "dv"; 1598 break; 1599 case KVME_TYPE_PHYS: 1600 str = "ph"; 1601 break; 1602 case KVME_TYPE_DEAD: 1603 str = "dd"; 1604 break; 1605 case KVME_TYPE_SG: 1606 str = "sg"; 1607 break; 1608 case KVME_TYPE_MGTDEVICE: 1609 str = "md"; 1610 break; 1611 case KVME_TYPE_UNKNOWN: 1612 default: 1613 str = "??"; 1614 break; 1615 } 1616 xo_emit("{:type/%-2s} ", str); 1617 xo_emit("{:path/%-s}\n", kvo->kvo_path); 1618 xo_close_instance("object"); 1619 } 1620 1621 static void 1622 doobjstat(void) 1623 { 1624 struct kinfo_vmobject *kvo; 1625 int cnt, i; 1626 1627 kvo = kinfo_getvmobject(&cnt); 1628 if (kvo == NULL) { 1629 xo_warn("Failed to fetch VM object list"); 1630 return; 1631 } 1632 xo_emit("{T:RES/%5s} {T:ACT/%5s} {T:INACT/%5s} {T:REF/%3s} {T:SHD/%3s} " 1633 "{T:CM/%3s} {T:TP/%2s} {T:PATH/%s}\n"); 1634 xo_open_list("object"); 1635 for (i = 0; i < cnt; i++) 1636 display_object(&kvo[i]); 1637 free(kvo); 1638 xo_close_list("object"); 1639 } 1640 1641 /* 1642 * kread reads something from the kernel, given its nlist index. 1643 */ 1644 static void 1645 kreado(int nlx, void *addr, size_t size, size_t offset) 1646 { 1647 const char *sym; 1648 1649 if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) { 1650 sym = namelist[nlx].n_name; 1651 if (*sym == '_') 1652 ++sym; 1653 xo_errx(1, "symbol %s not defined", sym); 1654 } 1655 if ((size_t)kvm_read(kd, namelist[nlx].n_value + offset, addr, 1656 size) != size) { 1657 sym = namelist[nlx].n_name; 1658 if (*sym == '_') 1659 ++sym; 1660 xo_errx(1, "%s: %s", sym, kvm_geterr(kd)); 1661 } 1662 } 1663 1664 static void 1665 kread(int nlx, void *addr, size_t size) 1666 { 1667 1668 kreado(nlx, addr, size, 0); 1669 } 1670 1671 static void 1672 kreadptr(uintptr_t addr, void *buf, size_t size) 1673 { 1674 1675 if ((size_t)kvm_read(kd, addr, buf, size) != size) 1676 xo_errx(1, "%s", kvm_geterr(kd)); 1677 } 1678 1679 static void __dead2 1680 usage(void) 1681 { 1682 xo_error("%s%s", 1683 "usage: vmstat [-afHhimoPsz] [-M core [-N system]] [-c count] [-n devs]\n", 1684 " [-p type,if,pass] [-w wait] [disks] [wait [count]]\n"); 1685 xo_finish(); 1686 exit(1); 1687 } 1688