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