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 33static 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 40static char sccsid[] = "@(#)vmstat.c 8.1 (Berkeley) 6/6/93"; 41#endif /* not lint */ 42#endif 43 44#include <sys/cdefs.h> 45__FBSDID("$FreeBSD$"); 46 47#include <sys/param.h> 48#include <sys/proc.h> 49#include <sys/uio.h> 50#include <sys/namei.h> 51#include <sys/malloc.h> 52#include <sys/signal.h> 53#include <sys/fcntl.h> 54#include <sys/ioctl.h> 55#include <sys/resource.h> 56#include <sys/sysctl.h> 57#include <sys/time.h> 58#include <sys/user.h> 59#define _WANT_VMMETER 60#include <sys/vmmeter.h> 61#include <sys/pcpu.h> 62 63#include <vm/vm_param.h> 64 65#include <ctype.h> 66#include <devstat.h> 67#include <err.h> 68#include <errno.h> 69#include <inttypes.h> 70#include <kvm.h> 71#include <limits.h> 72#include <memstat.h> 73#include <nlist.h> 74#include <paths.h> 75#include <stdio.h> 76#include <stdlib.h> 77#include <string.h> 78#include <sysexits.h> 79#include <time.h> 80#include <unistd.h> 81#include <libutil.h> 82#include <libxo/xo.h> 83 84#define VMSTAT_XO_VERSION "1" 85 86static char da[] = "da"; 87 88enum x_stats { X_SUM, X_HZ, X_STATHZ, X_NCHSTATS, X_INTRNAMES, X_SINTRNAMES, 89 X_INTRCNT, X_SINTRCNT, X_NINTRCNT }; 90 91static struct nlist namelist[] = { 92 [X_SUM] = { .n_name = "_vm_cnt", }, 93 [X_HZ] = { .n_name = "_hz", }, 94 [X_STATHZ] = { .n_name = "_stathz", }, 95 [X_NCHSTATS] = { .n_name = "_nchstats", }, 96 [X_INTRNAMES] = { .n_name = "_intrnames", }, 97 [X_SINTRNAMES] = { .n_name = "_sintrnames", }, 98 [X_INTRCNT] = { .n_name = "_intrcnt", }, 99 [X_SINTRCNT] = { .n_name = "_sintrcnt", }, 100 [X_NINTRCNT] = { .n_name = "_nintrcnt", }, 101 { .n_name = NULL, }, 102}; 103 104static struct devstat_match *matches; 105static struct device_selection *dev_select; 106static struct statinfo cur, last; 107static devstat_select_mode select_mode; 108static size_t size_cp_times; 109static long *cur_cp_times, *last_cp_times; 110static long generation, select_generation; 111static int hz, hdrcnt, maxshowdevs; 112static int num_devices, num_devices_specified; 113static int num_matches, num_selected, num_selections; 114static char **specified_devices; 115 116static struct __vmmeter { 117 uint64_t v_swtch; 118 uint64_t v_trap; 119 uint64_t v_syscall; 120 uint64_t v_intr; 121 uint64_t v_soft; 122 uint64_t v_vm_faults; 123 uint64_t v_io_faults; 124 uint64_t v_cow_faults; 125 uint64_t v_cow_optim; 126 uint64_t v_zfod; 127 uint64_t v_ozfod; 128 uint64_t v_swapin; 129 uint64_t v_swapout; 130 uint64_t v_swappgsin; 131 uint64_t v_swappgsout; 132 uint64_t v_vnodein; 133 uint64_t v_vnodeout; 134 uint64_t v_vnodepgsin; 135 uint64_t v_vnodepgsout; 136 uint64_t v_intrans; 137 uint64_t v_reactivated; 138 uint64_t v_pdwakeups; 139 uint64_t v_pdpages; 140 uint64_t v_pdshortfalls; 141 uint64_t v_dfree; 142 uint64_t v_pfree; 143 uint64_t v_tfree; 144 uint64_t v_forks; 145 uint64_t v_vforks; 146 uint64_t v_rforks; 147 uint64_t v_kthreads; 148 uint64_t v_forkpages; 149 uint64_t v_vforkpages; 150 uint64_t v_rforkpages; 151 uint64_t v_kthreadpages; 152 u_int v_page_size; 153 u_int v_page_count; 154 u_int v_free_reserved; 155 u_int v_free_target; 156 u_int v_free_min; 157 u_int v_free_count; 158 u_int v_wire_count; 159 u_long v_user_wire_count; 160 u_int v_active_count; 161 u_int v_inactive_target; 162 u_int v_inactive_count; 163 u_int v_laundry_count; 164 u_int v_pageout_free_min; 165 u_int v_interrupt_free_min; 166 u_int v_free_severe; 167} sum, osum; 168 169#define VMSTAT_DEFAULT_LINES 20 /* Default number of `winlines'. */ 170static volatile sig_atomic_t wresized; /* Tty resized when non-zero. */ 171static int winlines = VMSTAT_DEFAULT_LINES; /* Current number of tty rows. */ 172 173static int aflag; 174static int nflag; 175static int Pflag; 176static int hflag; 177 178static kvm_t *kd; 179 180#define FORKSTAT 0x01 181#define INTRSTAT 0x02 182#define MEMSTAT 0x04 183#define SUMSTAT 0x08 184#define TIMESTAT 0x10 185#define VMSTAT 0x20 186#define ZMEMSTAT 0x40 187#define OBJSTAT 0x80 188 189static void cpustats(void); 190static void pcpustats(u_long, int); 191static void devstats(void); 192static void doforkst(void); 193static void dointr(unsigned int, int); 194static void doobjstat(void); 195static void dosum(void); 196static void dovmstat(unsigned int, int); 197static void domemstat_malloc(void); 198static void domemstat_zone(void); 199static void kread(int, void *, size_t); 200static void kreado(int, void *, size_t, size_t); 201static void kreadptr(uintptr_t, void *, size_t); 202static void needhdr(int); 203static void needresize(int); 204static void doresize(void); 205static void printhdr(int, u_long); 206static void usage(void); 207 208static long pct(long, long); 209static long long getuptime(void); 210 211static char **getdrivedata(char **); 212 213int 214main(int argc, char *argv[]) 215{ 216 char *bp, *buf, *memf, *nlistf; 217 float f; 218 int bufsize, c, reps, todo; 219 size_t len; 220 unsigned int interval; 221 char errbuf[_POSIX2_LINE_MAX]; 222 223 memf = nlistf = NULL; 224 interval = reps = todo = 0; 225 maxshowdevs = 2; 226 hflag = isatty(1); 227 228 argc = xo_parse_args(argc, argv); 229 if (argc < 0) 230 return (argc); 231 232 while ((c = getopt(argc, argv, "ac:fhHiM:mN:n:oPp:sw:z")) != -1) { 233 switch (c) { 234 case 'a': 235 aflag++; 236 break; 237 case 'c': 238 reps = atoi(optarg); 239 break; 240 case 'P': 241 Pflag++; 242 break; 243 case 'f': 244 todo |= FORKSTAT; 245 break; 246 case 'h': 247 hflag = 1; 248 break; 249 case 'H': 250 hflag = 0; 251 break; 252 case 'i': 253 todo |= INTRSTAT; 254 break; 255 case 'M': 256 memf = optarg; 257 break; 258 case 'm': 259 todo |= MEMSTAT; 260 break; 261 case 'N': 262 nlistf = optarg; 263 break; 264 case 'n': 265 nflag = 1; 266 maxshowdevs = atoi(optarg); 267 if (maxshowdevs < 0) 268 xo_errx(1, "number of devices %d is < 0", 269 maxshowdevs); 270 break; 271 case 'o': 272 todo |= OBJSTAT; 273 break; 274 case 'p': 275 if (devstat_buildmatch(optarg, &matches, &num_matches) 276 != 0) 277 xo_errx(1, "%s", devstat_errbuf); 278 break; 279 case 's': 280 todo |= SUMSTAT; 281 break; 282 case 'w': 283 /* Convert to milliseconds. */ 284 f = atof(optarg); 285 interval = f * 1000; 286 break; 287 case 'z': 288 todo |= ZMEMSTAT; 289 break; 290 case '?': 291 default: 292 usage(); 293 } 294 } 295 argc -= optind; 296 argv += optind; 297 298 xo_set_version(VMSTAT_XO_VERSION); 299 if (todo == 0) 300 todo = VMSTAT; 301 302 if (memf != NULL) { 303 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf); 304 if (kd == NULL) 305 xo_errx(1, "kvm_openfiles: %s", errbuf); 306 } 307 308retry_nlist: 309 if (kd != NULL && (c = kvm_nlist(kd, namelist)) != 0) { 310 if (c > 0) { 311 bufsize = 0; 312 len = 0; 313 314 /* 315 * 'cnt' was renamed to 'vm_cnt'. If 'vm_cnt' is not 316 * found try looking up older 'cnt' symbol. 317 * */ 318 if (namelist[X_SUM].n_type == 0 && 319 strcmp(namelist[X_SUM].n_name, "_vm_cnt") == 0) { 320 namelist[X_SUM].n_name = "_cnt"; 321 goto retry_nlist; 322 } 323 324 /* 325 * 'nintrcnt' doesn't exist in older kernels, but 326 * that isn't fatal. 327 */ 328 if (namelist[X_NINTRCNT].n_type == 0 && c == 1) 329 goto nlist_ok; 330 331 for (c = 0; c < (int)(nitems(namelist)); c++) 332 if (namelist[c].n_type == 0) 333 bufsize += strlen(namelist[c].n_name) 334 + 1; 335 bufsize += len + 1; 336 buf = bp = alloca(bufsize); 337 338 for (c = 0; c < (int)(nitems(namelist)); c++) 339 if (namelist[c].n_type == 0) { 340 xo_error(" %s", 341 namelist[c].n_name); 342 len = strlen(namelist[c].n_name); 343 *bp++ = ' '; 344 memcpy(bp, namelist[c].n_name, len); 345 bp += len; 346 } 347 *bp = '\0'; 348 xo_error("undefined symbols:\n", buf); 349 } else 350 xo_warnx("kvm_nlist: %s", kvm_geterr(kd)); 351 xo_finish(); 352 exit(1); 353 } 354nlist_ok: 355 if (kd && Pflag) 356 xo_errx(1, "Cannot use -P with crash dumps"); 357 358 if (todo & VMSTAT) { 359 /* 360 * Make sure that the userland devstat version matches the 361 * kernel devstat version. If not, exit and print a 362 * message informing the user of his mistake. 363 */ 364 if (devstat_checkversion(NULL) < 0) 365 xo_errx(1, "%s", devstat_errbuf); 366 367 368 argv = getdrivedata(argv); 369 } 370 371 if (*argv) { 372 f = atof(*argv); 373 interval = f * 1000; 374 if (*++argv) 375 reps = atoi(*argv); 376 } 377 378 if (interval) { 379 if (!reps) 380 reps = -1; 381 } else if (reps) 382 interval = 1 * 1000; 383 384 if (todo & FORKSTAT) 385 doforkst(); 386 if (todo & MEMSTAT) 387 domemstat_malloc(); 388 if (todo & ZMEMSTAT) 389 domemstat_zone(); 390 if (todo & SUMSTAT) 391 dosum(); 392 if (todo & OBJSTAT) 393 doobjstat(); 394 if (todo & INTRSTAT) 395 dointr(interval, reps); 396 if (todo & VMSTAT) 397 dovmstat(interval, reps); 398 xo_finish(); 399 exit(0); 400} 401 402static int 403mysysctl(const char *name, void *oldp, size_t *oldlenp) 404{ 405 int error; 406 407 error = sysctlbyname(name, oldp, oldlenp, NULL, 0); 408 if (error != 0 && errno != ENOMEM) 409 xo_err(1, "sysctl(%s)", name); 410 return (error); 411} 412 413static char ** 414getdrivedata(char **argv) 415{ 416 417 if ((num_devices = devstat_getnumdevs(NULL)) < 0) 418 xo_errx(1, "%s", devstat_errbuf); 419 420 cur.dinfo = (struct devinfo *)calloc(1, sizeof(struct devinfo)); 421 last.dinfo = (struct devinfo *)calloc(1, sizeof(struct devinfo)); 422 423 if (devstat_getdevs(NULL, &cur) == -1) 424 xo_errx(1, "%s", devstat_errbuf); 425 426 num_devices = cur.dinfo->numdevs; 427 generation = cur.dinfo->generation; 428 429 specified_devices = malloc(sizeof(char *)); 430 for (num_devices_specified = 0; *argv; ++argv) { 431 if (isdigit(**argv)) 432 break; 433 num_devices_specified++; 434 specified_devices = reallocf(specified_devices, 435 sizeof(char *) * num_devices_specified); 436 if (specified_devices == NULL) { 437 xo_errx(1, "%s", "reallocf (specified_devices)"); 438 } 439 specified_devices[num_devices_specified - 1] = *argv; 440 } 441 dev_select = NULL; 442 443 if (nflag == 0 && maxshowdevs < num_devices_specified) 444 maxshowdevs = num_devices_specified; 445 446 /* 447 * People are generally only interested in disk statistics when 448 * they're running vmstat. So, that's what we're going to give 449 * them if they don't specify anything by default. We'll also give 450 * them any other random devices in the system so that we get to 451 * maxshowdevs devices, if that many devices exist. If the user 452 * specifies devices on the command line, either through a pattern 453 * match or by naming them explicitly, we will give the user only 454 * those devices. 455 */ 456 if ((num_devices_specified == 0) && (num_matches == 0)) { 457 if (devstat_buildmatch(da, &matches, &num_matches) != 0) 458 xo_errx(1, "%s", devstat_errbuf); 459 select_mode = DS_SELECT_ADD; 460 } else 461 select_mode = DS_SELECT_ONLY; 462 463 /* 464 * At this point, selectdevs will almost surely indicate that the 465 * device list has changed, so we don't look for return values of 0 466 * or 1. If we get back -1, though, there is an error. 467 */ 468 if (devstat_selectdevs(&dev_select, &num_selected, &num_selections, 469 &select_generation, generation, cur.dinfo->devices, 470 num_devices, matches, num_matches, specified_devices, 471 num_devices_specified, select_mode, 472 maxshowdevs, 0) == -1) 473 xo_errx(1, "%s", devstat_errbuf); 474 475 return(argv); 476} 477 478/* Return system uptime in nanoseconds */ 479static long long 480getuptime(void) 481{ 482 struct timespec sp; 483 484 (void)clock_gettime(CLOCK_UPTIME, &sp); 485 return((long long)sp.tv_sec * 1000000000LL + sp.tv_nsec); 486} 487 488static void 489fill_vmmeter(struct __vmmeter *vmmp) 490{ 491 struct vmmeter vm_cnt; 492 size_t size; 493 494 if (kd != NULL) { 495 kread(X_SUM, &vm_cnt, sizeof(vm_cnt)); 496#define GET_COUNTER(name) \ 497 vmmp->name = kvm_counter_u64_fetch(kd, (u_long)vm_cnt.name) 498 GET_COUNTER(v_swtch); 499 GET_COUNTER(v_trap); 500 GET_COUNTER(v_syscall); 501 GET_COUNTER(v_intr); 502 GET_COUNTER(v_soft); 503 GET_COUNTER(v_vm_faults); 504 GET_COUNTER(v_io_faults); 505 GET_COUNTER(v_cow_faults); 506 GET_COUNTER(v_cow_optim); 507 GET_COUNTER(v_zfod); 508 GET_COUNTER(v_ozfod); 509 GET_COUNTER(v_swapin); 510 GET_COUNTER(v_swapout); 511 GET_COUNTER(v_swappgsin); 512 GET_COUNTER(v_swappgsout); 513 GET_COUNTER(v_vnodein); 514 GET_COUNTER(v_vnodeout); 515 GET_COUNTER(v_vnodepgsin); 516 GET_COUNTER(v_vnodepgsout); 517 GET_COUNTER(v_intrans); 518 GET_COUNTER(v_tfree); 519 GET_COUNTER(v_forks); 520 GET_COUNTER(v_vforks); 521 GET_COUNTER(v_rforks); 522 GET_COUNTER(v_kthreads); 523 GET_COUNTER(v_forkpages); 524 GET_COUNTER(v_vforkpages); 525 GET_COUNTER(v_rforkpages); 526 GET_COUNTER(v_kthreadpages); 527#undef GET_COUNTER 528 } else { 529#define GET_VM_STATS(cat, name) do { \ 530 size = sizeof(vmmp->name); \ 531 mysysctl("vm.stats." #cat "." #name, &vmmp->name, &size); \ 532} while (0) 533 /* sys */ 534 GET_VM_STATS(sys, v_swtch); 535 GET_VM_STATS(sys, v_trap); 536 GET_VM_STATS(sys, v_syscall); 537 GET_VM_STATS(sys, v_intr); 538 GET_VM_STATS(sys, v_soft); 539 540 /* vm */ 541 GET_VM_STATS(vm, v_vm_faults); 542 GET_VM_STATS(vm, v_io_faults); 543 GET_VM_STATS(vm, v_cow_faults); 544 GET_VM_STATS(vm, v_cow_optim); 545 GET_VM_STATS(vm, v_zfod); 546 GET_VM_STATS(vm, v_ozfod); 547 GET_VM_STATS(vm, v_swapin); 548 GET_VM_STATS(vm, v_swapout); 549 GET_VM_STATS(vm, v_swappgsin); 550 GET_VM_STATS(vm, v_swappgsout); 551 GET_VM_STATS(vm, v_vnodein); 552 GET_VM_STATS(vm, v_vnodeout); 553 GET_VM_STATS(vm, v_vnodepgsin); 554 GET_VM_STATS(vm, v_vnodepgsout); 555 GET_VM_STATS(vm, v_intrans); 556 GET_VM_STATS(vm, v_reactivated); 557 GET_VM_STATS(vm, v_pdwakeups); 558 GET_VM_STATS(vm, v_pdpages); 559 GET_VM_STATS(vm, v_pdshortfalls); 560 GET_VM_STATS(vm, v_dfree); 561 GET_VM_STATS(vm, v_pfree); 562 GET_VM_STATS(vm, v_tfree); 563 GET_VM_STATS(vm, v_page_size); 564 GET_VM_STATS(vm, v_page_count); 565 GET_VM_STATS(vm, v_free_reserved); 566 GET_VM_STATS(vm, v_free_target); 567 GET_VM_STATS(vm, v_free_min); 568 GET_VM_STATS(vm, v_free_count); 569 GET_VM_STATS(vm, v_wire_count); 570 GET_VM_STATS(vm, v_user_wire_count); 571 GET_VM_STATS(vm, v_active_count); 572 GET_VM_STATS(vm, v_inactive_target); 573 GET_VM_STATS(vm, v_inactive_count); 574 GET_VM_STATS(vm, v_laundry_count); 575 GET_VM_STATS(vm, v_pageout_free_min); 576 GET_VM_STATS(vm, v_interrupt_free_min); 577 /*GET_VM_STATS(vm, v_free_severe);*/ 578 GET_VM_STATS(vm, v_forks); 579 GET_VM_STATS(vm, v_vforks); 580 GET_VM_STATS(vm, v_rforks); 581 GET_VM_STATS(vm, v_kthreads); 582 GET_VM_STATS(vm, v_forkpages); 583 GET_VM_STATS(vm, v_vforkpages); 584 GET_VM_STATS(vm, v_rforkpages); 585 GET_VM_STATS(vm, v_kthreadpages); 586#undef GET_VM_STATS 587 } 588} 589 590static void 591fill_vmtotal(struct vmtotal *vmtp) 592{ 593 size_t size; 594 595 if (kd != NULL) { 596 /* XXX fill vmtp */ 597 xo_errx(1, "not implemented"); 598 } else { 599 size = sizeof(*vmtp); 600 mysysctl("vm.vmtotal", vmtp, &size); 601 if (size != sizeof(*vmtp)) 602 xo_errx(1, "vm.total size mismatch"); 603 } 604} 605 606/* Determine how many cpu columns, and what index they are in kern.cp_times */ 607static int 608getcpuinfo(u_long *maskp, int *maxidp) 609{ 610 long *times; 611 u_long mask; 612 size_t size; 613 int empty, i, j, maxcpu, maxid, ncpus; 614 615 if (kd != NULL) 616 xo_errx(1, "not implemented"); 617 mask = 0; 618 ncpus = 0; 619 size = sizeof(maxcpu); 620 mysysctl("kern.smp.maxcpus", &maxcpu, &size); 621 if (size != sizeof(maxcpu)) 622 xo_errx(1, "sysctl kern.smp.maxcpus"); 623 size = sizeof(long) * maxcpu * CPUSTATES; 624 times = malloc(size); 625 if (times == NULL) 626 xo_err(1, "malloc %zd bytes", size); 627 mysysctl("kern.cp_times", times, &size); 628 maxid = (size / CPUSTATES / sizeof(long)) - 1; 629 for (i = 0; i <= maxid; i++) { 630 empty = 1; 631 for (j = 0; empty && j < CPUSTATES; j++) { 632 if (times[i * CPUSTATES + j] != 0) 633 empty = 0; 634 } 635 if (!empty) { 636 mask |= (1ul << i); 637 ncpus++; 638 } 639 } 640 if (maskp) 641 *maskp = mask; 642 if (maxidp) 643 *maxidp = maxid; 644 return (ncpus); 645} 646 647 648static void 649prthuman(const char *name, uint64_t val, int size, int flags) 650{ 651 char buf[10]; 652 char fmt[128]; 653 654 snprintf(fmt, sizeof(fmt), "{:%s/%%*s}", name); 655 656 if (size < 5 || size > 9) 657 xo_errx(1, "doofus"); 658 flags |= HN_NOSPACE | HN_DECIMAL; 659 humanize_number(buf, size, val, "", HN_AUTOSCALE, flags); 660 xo_attr("value", "%ju", (uintmax_t) val); 661 xo_emit(fmt, size, buf); 662} 663 664static void 665dovmstat(unsigned int interval, int reps) 666{ 667 struct clockinfo clockrate; 668 struct vmtotal total; 669 struct devinfo *tmp_dinfo; 670 u_long cpumask; 671 size_t size; 672 time_t uptime, halfuptime; 673 int ncpus, maxid, rate_adj, retval; 674 675 uptime = getuptime() / 1000000000LL; 676 halfuptime = uptime / 2; 677 rate_adj = 1; 678 ncpus = 1; 679 maxid = 0; 680 cpumask = 0; 681 682 /* 683 * If the user stops the program (control-Z) and then resumes it, 684 * print out the header again. 685 */ 686 (void)signal(SIGCONT, needhdr); 687 688 /* 689 * If our standard output is a tty, then install a SIGWINCH handler 690 * and set wresized so that our first iteration through the main 691 * vmstat loop will peek at the terminal's current rows to find out 692 * how many lines can fit in a screenful of output. 693 */ 694 if (isatty(fileno(stdout)) != 0) { 695 wresized = 1; 696 (void)signal(SIGWINCH, needresize); 697 } else { 698 wresized = 0; 699 winlines = VMSTAT_DEFAULT_LINES; 700 } 701 702 if (kd != NULL) { 703 if (namelist[X_STATHZ].n_type != 0 && 704 namelist[X_STATHZ].n_value != 0) 705 kread(X_STATHZ, &hz, sizeof(hz)); 706 if (!hz) 707 kread(X_HZ, &hz, sizeof(hz)); 708 } else { 709 size = sizeof(clockrate); 710 mysysctl("kern.clockrate", &clockrate, &size); 711 if (size != sizeof(clockrate)) 712 xo_errx(1, "clockrate size mismatch"); 713 hz = clockrate.hz; 714 } 715 716 if (Pflag) { 717 ncpus = getcpuinfo(&cpumask, &maxid); 718 size_cp_times = sizeof(long) * (maxid + 1) * CPUSTATES; 719 cur_cp_times = calloc(1, size_cp_times); 720 last_cp_times = calloc(1, size_cp_times); 721 } 722 for (hdrcnt = 1;;) { 723 if (!--hdrcnt) 724 printhdr(maxid, cpumask); 725 if (kd != NULL) { 726 if (kvm_getcptime(kd, cur.cp_time) < 0) 727 xo_errx(1, "kvm_getcptime: %s", kvm_geterr(kd)); 728 } else { 729 size = sizeof(cur.cp_time); 730 mysysctl("kern.cp_time", &cur.cp_time, &size); 731 if (size != sizeof(cur.cp_time)) 732 xo_errx(1, "cp_time size mismatch"); 733 } 734 if (Pflag) { 735 size = size_cp_times; 736 mysysctl("kern.cp_times", cur_cp_times, &size); 737 if (size != size_cp_times) 738 xo_errx(1, "cp_times mismatch"); 739 } 740 741 tmp_dinfo = last.dinfo; 742 last.dinfo = cur.dinfo; 743 cur.dinfo = tmp_dinfo; 744 last.snap_time = cur.snap_time; 745 746 /* 747 * Here what we want to do is refresh our device stats. 748 * getdevs() returns 1 when the device list has changed. 749 * If the device list has changed, we want to go through 750 * the selection process again, in case a device that we 751 * were previously displaying has gone away. 752 */ 753 switch (devstat_getdevs(NULL, &cur)) { 754 case -1: 755 xo_errx(1, "%s", devstat_errbuf); 756 break; 757 case 1: 758 num_devices = cur.dinfo->numdevs; 759 generation = cur.dinfo->generation; 760 761 retval = devstat_selectdevs(&dev_select, &num_selected, 762 &num_selections, &select_generation, 763 generation, cur.dinfo->devices, 764 num_devices, matches, num_matches, 765 specified_devices, 766 num_devices_specified, select_mode, 767 maxshowdevs, 0); 768 switch (retval) { 769 case -1: 770 xo_errx(1, "%s", devstat_errbuf); 771 break; 772 case 1: 773 printhdr(maxid, cpumask); 774 break; 775 default: 776 break; 777 } 778 break; 779 default: 780 break; 781 } 782 783 fill_vmmeter(&sum); 784 fill_vmtotal(&total); 785 xo_open_container("processes"); 786 xo_emit("{:runnable/%2d} {:waiting/%2ld} " 787 "{:swapped-out/%2ld}", total.t_rq - 1, total.t_dw + 788 total.t_pw, total.t_sw); 789 xo_close_container("processes"); 790 xo_open_container("memory"); 791#define vmstat_pgtok(a) ((uintmax_t)(a) * (sum.v_page_size >> 10)) 792#define rate(x) (unsigned long)(((x) * rate_adj + halfuptime) / uptime) 793 if (hflag) { 794 prthuman("available-memory", 795 total.t_avm * (uint64_t)sum.v_page_size, 5, HN_B); 796 prthuman("free-memory", 797 total.t_free * (uint64_t)sum.v_page_size, 5, HN_B); 798 prthuman("total-page-faults", 799 rate(sum.v_vm_faults - osum.v_vm_faults), 5, 0); 800 xo_emit(" "); 801 } else { 802 xo_emit(" "); 803 xo_emit("{:available-memory/%7ju}", 804 vmstat_pgtok(total.t_avm)); 805 xo_emit(" "); 806 xo_emit("{:free-memory/%7ju}", 807 vmstat_pgtok(total.t_free)); 808 xo_emit(" "); 809 xo_emit("{:total-page-faults/%5lu} ", 810 rate(sum.v_vm_faults - osum.v_vm_faults)); 811 } 812 xo_close_container("memory"); 813 814 xo_open_container("paging-rates"); 815 xo_emit("{:page-reactivated/%3lu} ", 816 rate(sum.v_reactivated - osum.v_reactivated)); 817 xo_emit("{:paged-in/%3lu} ", 818 rate(sum.v_swapin + sum.v_vnodein - 819 (osum.v_swapin + osum.v_vnodein))); 820 xo_emit("{:paged-out/%3lu}", 821 rate(sum.v_swapout + sum.v_vnodeout - 822 (osum.v_swapout + osum.v_vnodeout))); 823 if (hflag) { 824 prthuman("freed", 825 rate(sum.v_tfree - osum.v_tfree), 5, 0); 826 prthuman("scanned", 827 rate(sum.v_pdpages - osum.v_pdpages), 5, 0); 828 xo_emit(" "); 829 } else { 830 xo_emit(" "); 831 xo_emit("{:freed/%5lu} ", 832 rate(sum.v_tfree - osum.v_tfree)); 833 xo_emit("{:scanned/%4lu} ", 834 rate(sum.v_pdpages - osum.v_pdpages)); 835 } 836 xo_close_container("paging-rates"); 837 838 devstats(); 839 xo_open_container("fault-rates"); 840 xo_emit("{:interrupts/%4lu}", rate(sum.v_intr - osum.v_intr)); 841 if (hflag) { 842 prthuman("system-calls", 843 rate(sum.v_syscall - osum.v_syscall), 5, 0); 844 prthuman("context-switches", 845 rate(sum.v_swtch - osum.v_swtch), 5, 0); 846 } else { 847 xo_emit(" "); 848 xo_emit("{:system-calls/%5lu} " 849 "{:context-switches/%5lu}", 850 rate(sum.v_syscall - osum.v_syscall), 851 rate(sum.v_swtch - osum.v_swtch)); 852 } 853 xo_close_container("fault-rates"); 854 if (Pflag) 855 pcpustats(cpumask, maxid); 856 else 857 cpustats(); 858 xo_emit("\n"); 859 xo_flush(); 860 if (reps >= 0 && --reps <= 0) 861 break; 862 osum = sum; 863 uptime = interval; 864 rate_adj = 1000; 865 /* 866 * We round upward to avoid losing low-frequency events 867 * (i.e., >= 1 per interval but < 1 per millisecond). 868 */ 869 if (interval != 1) 870 halfuptime = (uptime + 1) / 2; 871 else 872 halfuptime = 0; 873 (void)usleep(interval * 1000); 874 } 875} 876 877static void 878printhdr(int maxid, u_long cpumask) 879{ 880 int i, num_shown; 881 882 num_shown = MIN(num_selected, maxshowdevs); 883 if (hflag) 884 xo_emit(" {T:procs} {T:memory} {T:/page%*s}", 19, ""); 885 else 886 xo_emit("{T:procs} {T:memory} {T:/page%*s}", 19, ""); 887 if (num_shown > 1) 888 xo_emit(" {T:/disks %*s} ", num_shown * 4 - 7, ""); 889 else if (num_shown == 1) 890 xo_emit(" {T:disks}"); 891 xo_emit(" {T:faults} "); 892 if (Pflag) { 893 for (i = 0; i <= maxid; i++) { 894 if (cpumask & (1ul << i)) 895 xo_emit(" {T:/cpu%d} ", i); 896 } 897 xo_emit("\n"); 898 } else 899 xo_emit(" {T:cpu}\n"); 900 if (hflag) { 901 xo_emit(" {T:r} {T:b} {T:w} {T:avm} {T:fre} {T:flt} {T:re}" 902 " {T:pi} {T:po} {T:fr} {T:sr} "); 903 } else { 904 xo_emit("{T:r} {T:b} {T:w} {T:avm} {T:fre} {T:flt} " 905 "{T:re} {T:pi} {T:po} {T:fr} {T:sr} "); 906 } 907 for (i = 0; i < num_devices; i++) 908 if ((dev_select[i].selected) && 909 (dev_select[i].selected <= maxshowdevs)) 910 xo_emit("{T:/%c%c%d} ", dev_select[i].device_name[0], 911 dev_select[i].device_name[1], 912 dev_select[i].unit_number); 913 xo_emit(" {T:in} {T:sy} {T:cs}"); 914 if (Pflag) { 915 for (i = 0; i <= maxid; i++) { 916 if (cpumask & (1ul << i)) 917 xo_emit(" {T:us} {T:sy} {T:id}"); 918 } 919 xo_emit("\n"); 920 } else 921 xo_emit(" {T:us} {T:sy} {T:id}\n"); 922 if (wresized != 0) 923 doresize(); 924 hdrcnt = winlines; 925} 926 927/* 928 * Force a header to be prepended to the next output. 929 */ 930static void 931needhdr(int dummy __unused) 932{ 933 934 hdrcnt = 1; 935} 936 937/* 938 * When the terminal is resized, force an update of the maximum number of rows 939 * printed between each header repetition. Then force a new header to be 940 * prepended to the next output. 941 */ 942void 943needresize(int signo __unused) 944{ 945 946 wresized = 1; 947 hdrcnt = 1; 948} 949 950/* 951 * Update the global `winlines' count of terminal rows. 952 */ 953void 954doresize(void) 955{ 956 struct winsize w; 957 int status; 958 959 for (;;) { 960 status = ioctl(fileno(stdout), TIOCGWINSZ, &w); 961 if (status == -1 && errno == EINTR) 962 continue; 963 else if (status == -1) 964 xo_err(1, "ioctl"); 965 if (w.ws_row > 3) 966 winlines = w.ws_row - 3; 967 else 968 winlines = VMSTAT_DEFAULT_LINES; 969 break; 970 } 971 972 /* 973 * Inhibit doresize() calls until we are rescheduled by SIGWINCH. 974 */ 975 wresized = 0; 976} 977 978static long 979pct(long top, long bot) 980{ 981 long ans; 982 983 if (bot == 0) 984 return(0); 985 ans = (quad_t)top * 100 / bot; 986 return (ans); 987} 988 989#define PCT(top, bot) pct((long)(top), (long)(bot)) 990 991static void 992dosum(void) 993{ 994 struct nchstats lnchstats; 995 size_t size; 996 long nchtotal; 997 998 fill_vmmeter(&sum); 999 xo_open_container("summary-statistics"); 1000 xo_emit("{:context-switches/%9u} {N:cpu context switches}\n", 1001 sum.v_swtch); 1002 xo_emit("{:interrupts/%9u} {N:device interrupts}\n", 1003 sum.v_intr); 1004 xo_emit("{:software-interrupts/%9u} {N:software interrupts}\n", 1005 sum.v_soft); 1006 xo_emit("{:traps/%9u} {N:traps}\n", sum.v_trap); 1007 xo_emit("{:system-calls/%9u} {N:system calls}\n", 1008 sum.v_syscall); 1009 xo_emit("{:kernel-threads/%9u} {N:kernel threads created}\n", 1010 sum.v_kthreads); 1011 xo_emit("{:forks/%9u} {N: fork() calls}\n", sum.v_forks); 1012 xo_emit("{:vforks/%9u} {N:vfork() calls}\n", 1013 sum.v_vforks); 1014 xo_emit("{:rforks/%9u} {N:rfork() calls}\n", 1015 sum.v_rforks); 1016 xo_emit("{:swap-ins/%9u} {N:swap pager pageins}\n", 1017 sum.v_swapin); 1018 xo_emit("{:swap-in-pages/%9u} {N:swap pager pages paged in}\n", 1019 sum.v_swappgsin); 1020 xo_emit("{:swap-outs/%9u} {N:swap pager pageouts}\n", 1021 sum.v_swapout); 1022 xo_emit("{:swap-out-pages/%9u} {N:swap pager pages paged out}\n", 1023 sum.v_swappgsout); 1024 xo_emit("{:vnode-page-ins/%9u} {N:vnode pager pageins}\n", 1025 sum.v_vnodein); 1026 xo_emit("{:vnode-page-in-pages/%9u} {N:vnode pager pages paged in}\n", 1027 sum.v_vnodepgsin); 1028 xo_emit("{:vnode-page-outs/%9u} {N:vnode pager pageouts}\n", 1029 sum.v_vnodeout); 1030 xo_emit("{:vnode-page-out-pages/%9u} {N:vnode pager pages paged out}\n", 1031 sum.v_vnodepgsout); 1032 xo_emit("{:page-daemon-wakeups/%9u} {N:page daemon wakeups}\n", 1033 sum.v_pdwakeups); 1034 xo_emit("{:page-daemon-pages/%9u} {N:pages examined by the page " 1035 "daemon}\n", sum.v_pdpages); 1036 xo_emit("{:page-reclamation-shortfalls/%9u} {N:clean page reclamation " 1037 "shortfalls}\n", sum.v_pdshortfalls); 1038 xo_emit("{:reactivated/%9u} {N:pages reactivated by the page daemon}\n", 1039 sum.v_reactivated); 1040 xo_emit("{:copy-on-write-faults/%9u} {N:copy-on-write faults}\n", 1041 sum.v_cow_faults); 1042 xo_emit("{:copy-on-write-optimized-faults/%9u} {N:copy-on-write " 1043 "optimized faults}\n", sum.v_cow_optim); 1044 xo_emit("{:zero-fill-pages/%9u} {N:zero fill pages zeroed}\n", 1045 sum.v_zfod); 1046 xo_emit("{:zero-fill-prezeroed/%9u} {N:zero fill pages prezeroed}\n", 1047 sum.v_ozfod); 1048 xo_emit("{:intransit-blocking/%9u} {N:intransit blocking page faults}\n", 1049 sum.v_intrans); 1050 xo_emit("{:total-faults/%9u} {N:total VM faults taken}\n", 1051 sum.v_vm_faults); 1052 xo_emit("{:faults-requiring-io/%9u} {N:page faults requiring I\\/O}\n", 1053 sum.v_io_faults); 1054 xo_emit("{:faults-from-thread-creation/%9u} {N:pages affected by " 1055 "kernel thread creation}\n", sum.v_kthreadpages); 1056 xo_emit("{:faults-from-fork/%9u} {N:pages affected by fork}()\n", 1057 sum.v_forkpages); 1058 xo_emit("{:faults-from-vfork/%9u} {N:pages affected by vfork}()\n", 1059 sum.v_vforkpages); 1060 xo_emit("{:pages-rfork/%9u} {N:pages affected by rfork}()\n", 1061 sum.v_rforkpages); 1062 xo_emit("{:pages-freed/%9u} {N:pages freed}\n", 1063 sum.v_tfree); 1064 xo_emit("{:pages-freed-by-daemon/%9u} {N:pages freed by daemon}\n", 1065 sum.v_dfree); 1066 xo_emit("{:pages-freed-on-exit/%9u} {N:pages freed by exiting processes}\n", 1067 sum.v_pfree); 1068 xo_emit("{:active-pages/%9u} {N:pages active}\n", 1069 sum.v_active_count); 1070 xo_emit("{:inactive-pages/%9u} {N:pages inactive}\n", 1071 sum.v_inactive_count); 1072 xo_emit("{:laundry-pages/%9u} {N:pages in the laundry queue}\n", 1073 sum.v_laundry_count); 1074 xo_emit("{:wired-pages/%9u} {N:pages wired down}\n", 1075 sum.v_wire_count); 1076 xo_emit("{:virtual-user-wired-pages/%9lu} {N:virtual user pages wired " 1077 "down}\n", sum.v_user_wire_count); 1078 xo_emit("{:free-pages/%9u} {N:pages free}\n", 1079 sum.v_free_count); 1080 xo_emit("{:bytes-per-page/%9u} {N:bytes per page}\n", sum.v_page_size); 1081 if (kd != NULL) { 1082 kread(X_NCHSTATS, &lnchstats, sizeof(lnchstats)); 1083 } else { 1084 size = sizeof(lnchstats); 1085 mysysctl("vfs.cache.nchstats", &lnchstats, &size); 1086 if (size != sizeof(lnchstats)) 1087 xo_errx(1, "vfs.cache.nchstats size mismatch"); 1088 } 1089 nchtotal = lnchstats.ncs_goodhits + lnchstats.ncs_neghits + 1090 lnchstats.ncs_badhits + lnchstats.ncs_falsehits + 1091 lnchstats.ncs_miss + lnchstats.ncs_long; 1092 xo_emit("{:total-name-lookups/%9ld} {N:total name lookups}\n", 1093 nchtotal); 1094 xo_emit("{P:/%9s} {N:cache hits} " 1095 "({:positive-cache-hits/%ld}% pos + " 1096 "{:negative-cache-hits/%ld}% {N:neg}) " 1097 "system {:cache-hit-percent/%ld}% per-directory\n", 1098 "", PCT(lnchstats.ncs_goodhits, nchtotal), 1099 PCT(lnchstats.ncs_neghits, nchtotal), 1100 PCT(lnchstats.ncs_pass2, nchtotal)); 1101 xo_emit("{P:/%9s} {L:deletions} {:deletions/%ld}%, " 1102 "{L:falsehits} {:false-hits/%ld}%, " 1103 "{L:toolong} {:too-long/%ld}%\n", "", 1104 PCT(lnchstats.ncs_badhits, nchtotal), 1105 PCT(lnchstats.ncs_falsehits, nchtotal), 1106 PCT(lnchstats.ncs_long, nchtotal)); 1107 xo_close_container("summary-statistics"); 1108} 1109 1110static void 1111doforkst(void) 1112{ 1113 1114 fill_vmmeter(&sum); 1115 xo_open_container("fork-statistics"); 1116 xo_emit("{:fork/%u} {N:forks}, {:fork-pages/%u} {N:pages}, " 1117 "{L:average} {:fork-average/%.2f}\n", 1118 sum.v_forks, sum.v_forkpages, 1119 sum.v_forks == 0 ? 0.0 : 1120 (double)sum.v_forkpages / sum.v_forks); 1121 xo_emit("{:vfork/%u} {N:vforks}, {:vfork-pages/%u} {N:pages}, " 1122 "{L:average} {:vfork-average/%.2f}\n", 1123 sum.v_vforks, sum.v_vforkpages, 1124 sum.v_vforks == 0 ? 0.0 : 1125 (double)sum.v_vforkpages / sum.v_vforks); 1126 xo_emit("{:rfork/%u} {N:rforks}, {:rfork-pages/%u} {N:pages}, " 1127 "{L:average} {:rfork-average/%.2f}\n", 1128 sum.v_rforks, sum.v_rforkpages, 1129 sum.v_rforks == 0 ? 0.0 : 1130 (double)sum.v_rforkpages / sum.v_rforks); 1131 xo_close_container("fork-statistics"); 1132} 1133 1134static void 1135devstats(void) 1136{ 1137 long double busy_seconds, transfers_per_second; 1138 long tmp; 1139 int di, dn, state; 1140 1141 for (state = 0; state < CPUSTATES; ++state) { 1142 tmp = cur.cp_time[state]; 1143 cur.cp_time[state] -= last.cp_time[state]; 1144 last.cp_time[state] = tmp; 1145 } 1146 1147 busy_seconds = cur.snap_time - last.snap_time; 1148 1149 xo_open_list("device"); 1150 for (dn = 0; dn < num_devices; dn++) { 1151 if (dev_select[dn].selected == 0 || 1152 dev_select[dn].selected > maxshowdevs) 1153 continue; 1154 1155 di = dev_select[dn].position; 1156 1157 if (devstat_compute_statistics(&cur.dinfo->devices[di], 1158 &last.dinfo->devices[di], busy_seconds, 1159 DSM_TRANSFERS_PER_SECOND, &transfers_per_second, 1160 DSM_NONE) != 0) 1161 xo_errx(1, "%s", devstat_errbuf); 1162 1163 xo_open_instance("device"); 1164 xo_emit("{ekq:name/%c%c%d}{:transfers/%3.0Lf} ", 1165 dev_select[dn].device_name[0], 1166 dev_select[dn].device_name[1], 1167 dev_select[dn].unit_number, 1168 transfers_per_second); 1169 xo_close_instance("device"); 1170 } 1171 xo_close_list("device"); 1172} 1173 1174static void 1175percent(const char *name, double pctv, int *over) 1176{ 1177 int l; 1178 char buf[10]; 1179 char fmt[128]; 1180 1181 snprintf(fmt, sizeof(fmt), " {:%s/%%*s}", name); 1182 l = snprintf(buf, sizeof(buf), "%.0f", pctv); 1183 if (l == 1 && *over) { 1184 xo_emit(fmt, 1, buf); 1185 (*over)--; 1186 } else 1187 xo_emit(fmt, 2, buf); 1188 if (l > 2) 1189 (*over)++; 1190} 1191 1192static void 1193cpustats(void) 1194{ 1195 double lpct, total; 1196 int state, over; 1197 1198 total = 0; 1199 for (state = 0; state < CPUSTATES; ++state) 1200 total += cur.cp_time[state]; 1201 if (total > 0) 1202 lpct = 100.0 / total; 1203 else 1204 lpct = 0.0; 1205 over = 0; 1206 xo_open_container("cpu-statistics"); 1207 percent("user", (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * lpct, 1208 &over); 1209 percent("system", (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * lpct, 1210 &over); 1211 percent("idle", cur.cp_time[CP_IDLE] * lpct, &over); 1212 xo_close_container("cpu-statistics"); 1213} 1214 1215static void 1216pcpustats(u_long cpumask, int maxid) 1217{ 1218 double lpct, total; 1219 long tmp; 1220 int i, over, state; 1221 1222 /* devstats does this for cp_time */ 1223 for (i = 0; i <= maxid; i++) { 1224 if ((cpumask & (1ul << i)) == 0) 1225 continue; 1226 for (state = 0; state < CPUSTATES; ++state) { 1227 tmp = cur_cp_times[i * CPUSTATES + state]; 1228 cur_cp_times[i * CPUSTATES + state] -= last_cp_times[i * 1229 CPUSTATES + state]; 1230 last_cp_times[i * CPUSTATES + state] = tmp; 1231 } 1232 } 1233 1234 over = 0; 1235 xo_open_list("cpu"); 1236 for (i = 0; i <= maxid; i++) { 1237 if ((cpumask & (1ul << i)) == 0) 1238 continue; 1239 xo_open_instance("cpu"); 1240 xo_emit("{ke:name/%d}", i); 1241 total = 0; 1242 for (state = 0; state < CPUSTATES; ++state) 1243 total += cur_cp_times[i * CPUSTATES + state]; 1244 if (total) 1245 lpct = 100.0 / total; 1246 else 1247 lpct = 0.0; 1248 percent("user", (cur_cp_times[i * CPUSTATES + CP_USER] + 1249 cur_cp_times[i * CPUSTATES + CP_NICE]) * lpct, &over); 1250 percent("system", (cur_cp_times[i * CPUSTATES + CP_SYS] + 1251 cur_cp_times[i * CPUSTATES + CP_INTR]) * lpct, &over); 1252 percent("idle", cur_cp_times[i * CPUSTATES + CP_IDLE] * lpct, 1253 &over); 1254 xo_close_instance("cpu"); 1255 } 1256 xo_close_list("cpu"); 1257} 1258 1259static unsigned int 1260read_intrcnts(unsigned long **intrcnts) 1261{ 1262 size_t intrcntlen; 1263 uintptr_t kaddr; 1264 1265 if (kd != NULL) { 1266 kread(X_SINTRCNT, &intrcntlen, sizeof(intrcntlen)); 1267 if ((*intrcnts = malloc(intrcntlen)) == NULL) 1268 err(1, "malloc()"); 1269 if (namelist[X_NINTRCNT].n_type == 0) 1270 kread(X_INTRCNT, *intrcnts, intrcntlen); 1271 else { 1272 kread(X_INTRCNT, &kaddr, sizeof(kaddr)); 1273 kreadptr(kaddr, *intrcnts, intrcntlen); 1274 } 1275 } else { 1276 for (*intrcnts = NULL, intrcntlen = 1024; ; intrcntlen *= 2) { 1277 *intrcnts = reallocf(*intrcnts, intrcntlen); 1278 if (*intrcnts == NULL) 1279 err(1, "reallocf()"); 1280 if (mysysctl("hw.intrcnt", *intrcnts, &intrcntlen) == 0) 1281 break; 1282 } 1283 } 1284 1285 return (intrcntlen / sizeof(unsigned long)); 1286} 1287 1288static void 1289print_intrcnts(unsigned long *intrcnts, unsigned long *old_intrcnts, 1290 char *intrnames, unsigned int nintr, size_t istrnamlen, long long period_ms) 1291{ 1292 unsigned long *intrcnt, *old_intrcnt; 1293 char *intrname; 1294 uint64_t inttotal, old_inttotal, total_count, total_rate; 1295 unsigned long count, rate; 1296 unsigned int i; 1297 1298 inttotal = 0; 1299 old_inttotal = 0; 1300 intrname = intrnames; 1301 xo_open_list("interrupt"); 1302 for (i = 0, intrcnt=intrcnts, old_intrcnt=old_intrcnts; i < nintr; i++) { 1303 if (intrname[0] != '\0' && (*intrcnt != 0 || aflag)) { 1304 count = *intrcnt - *old_intrcnt; 1305 rate = ((uint64_t)count * 1000 + period_ms / 2) / period_ms; 1306 xo_open_instance("interrupt"); 1307 xo_emit("{d:name/%-*s}{ket:name/%s} " 1308 "{:total/%20lu} {:rate/%10lu}\n", 1309 (int)istrnamlen, intrname, intrname, count, rate); 1310 xo_close_instance("interrupt"); 1311 } 1312 intrname += strlen(intrname) + 1; 1313 inttotal += *intrcnt++; 1314 old_inttotal += *old_intrcnt++; 1315 } 1316 total_count = inttotal - old_inttotal; 1317 total_rate = (total_count * 1000 + period_ms / 2) / period_ms; 1318 xo_close_list("interrupt"); 1319 xo_emit("{L:/%-*s} {:total-interrupts/%20ju} " 1320 "{:total-rate/%10ju}\n", (int)istrnamlen, 1321 "Total", (uintmax_t)total_count, (uintmax_t)total_rate); 1322} 1323 1324static void 1325dointr(unsigned int interval, int reps) 1326{ 1327 unsigned long *intrcnts, *old_intrcnts; 1328 char *intrname, *intrnames; 1329 long long period_ms, old_uptime, uptime; 1330 size_t clen, inamlen, istrnamlen; 1331 uintptr_t kaddr; 1332 unsigned int nintr; 1333 1334 old_intrcnts = NULL; 1335 uptime = getuptime(); 1336 1337 /* Get the names of each interrupt source */ 1338 if (kd != NULL) { 1339 kread(X_SINTRNAMES, &inamlen, sizeof(inamlen)); 1340 if ((intrnames = malloc(inamlen)) == NULL) 1341 xo_err(1, "malloc()"); 1342 if (namelist[X_NINTRCNT].n_type == 0) 1343 kread(X_INTRNAMES, intrnames, inamlen); 1344 else { 1345 kread(X_INTRNAMES, &kaddr, sizeof(kaddr)); 1346 kreadptr(kaddr, intrnames, inamlen); 1347 } 1348 } else { 1349 for (intrnames = NULL, inamlen = 1024; ; inamlen *= 2) { 1350 if ((intrnames = reallocf(intrnames, inamlen)) == NULL) 1351 xo_err(1, "reallocf()"); 1352 if (mysysctl("hw.intrnames", intrnames, &inamlen) == 0) 1353 break; 1354 } 1355 } 1356 1357 /* Determine the length of the longest interrupt name */ 1358 intrname = intrnames; 1359 istrnamlen = strlen("interrupt"); 1360 while(*intrname != '\0') { 1361 clen = strlen(intrname); 1362 if (clen > istrnamlen) 1363 istrnamlen = clen; 1364 intrname += strlen(intrname) + 1; 1365 } 1366 xo_emit("{T:/%-*s} {T:/%20s} {T:/%10s}\n", 1367 (int)istrnamlen, "interrupt", "total", "rate"); 1368 1369 /* 1370 * Loop reps times printing differential interrupt counts. If reps is 1371 * zero, then run just once, printing total counts 1372 */ 1373 xo_open_container("interrupt-statistics"); 1374 1375 period_ms = uptime / 1000000; 1376 while(1) { 1377 nintr = read_intrcnts(&intrcnts); 1378 /* 1379 * Initialize old_intrcnts to 0 for the first pass, so 1380 * print_intrcnts will print total interrupts since boot 1381 */ 1382 if (old_intrcnts == NULL) { 1383 old_intrcnts = calloc(nintr, sizeof(unsigned long)); 1384 if (old_intrcnts == NULL) 1385 xo_err(1, "calloc()"); 1386 } 1387 1388 print_intrcnts(intrcnts, old_intrcnts, intrnames, nintr, 1389 istrnamlen, period_ms); 1390 xo_flush(); 1391 1392 free(old_intrcnts); 1393 old_intrcnts = intrcnts; 1394 if (reps >= 0 && --reps <= 0) 1395 break; 1396 usleep(interval * 1000); 1397 old_uptime = uptime; 1398 uptime = getuptime(); 1399 period_ms = (uptime - old_uptime) / 1000000; 1400 } 1401 1402 xo_close_container("interrupt-statistics"); 1403} 1404 1405static void 1406domemstat_malloc(void) 1407{ 1408 struct memory_type_list *mtlp; 1409 struct memory_type *mtp; 1410 size_t i, zones; 1411 int error, first; 1412 1413 mtlp = memstat_mtl_alloc(); 1414 if (mtlp == NULL) { 1415 xo_warn("memstat_mtl_alloc"); 1416 return; 1417 } 1418 if (kd == NULL) { 1419 if (memstat_sysctl_malloc(mtlp, 0) < 0) { 1420 xo_warnx("memstat_sysctl_malloc: %s", 1421 memstat_strerror(memstat_mtl_geterror(mtlp))); 1422 return; 1423 } 1424 } else { 1425 if (memstat_kvm_malloc(mtlp, kd) < 0) { 1426 error = memstat_mtl_geterror(mtlp); 1427 if (error == MEMSTAT_ERROR_KVM) 1428 xo_warnx("memstat_kvm_malloc: %s", 1429 kvm_geterr(kd)); 1430 else 1431 xo_warnx("memstat_kvm_malloc: %s", 1432 memstat_strerror(error)); 1433 } 1434 } 1435 xo_open_container("malloc-statistics"); 1436 xo_emit("{T:/%13s} {T:/%5s} {T:/%6s} {T:/%8s} {T:Size(s)}\n", 1437 "Type", "InUse", "MemUse", "Requests"); 1438 xo_open_list("memory"); 1439 zones = memstat_malloc_zone_get_count(); 1440 for (mtp = memstat_mtl_first(mtlp); mtp != NULL; 1441 mtp = memstat_mtl_next(mtp)) { 1442 if (memstat_get_numallocs(mtp) == 0 && 1443 memstat_get_count(mtp) == 0) 1444 continue; 1445 xo_open_instance("memory"); 1446 xo_emit("{k:type/%13s/%s} {:in-use/%5ju} " 1447 "{:memory-use/%5ju}{U:K} {:requests/%8ju} ", 1448 memstat_get_name(mtp), (uintmax_t)memstat_get_count(mtp), 1449 ((uintmax_t)memstat_get_bytes(mtp) + 1023) / 1024, 1450 (uintmax_t)memstat_get_numallocs(mtp)); 1451 first = 1; 1452 xo_open_list("size"); 1453 for (i = 0; i < zones; i++) { 1454 if (memstat_malloc_zone_used(mtp, i)) { 1455 if (!first) 1456 xo_emit(","); 1457 xo_emit("{l:size/%d}", memstat_malloc_zone_get_size(i)); 1458 first = 0; 1459 } 1460 } 1461 xo_close_list("size"); 1462 xo_close_instance("memory"); 1463 xo_emit("\n"); 1464 } 1465 xo_close_list("memory"); 1466 xo_close_container("malloc-statistics"); 1467 memstat_mtl_free(mtlp); 1468} 1469 1470static void 1471domemstat_zone(void) 1472{ 1473 struct memory_type_list *mtlp; 1474 struct memory_type *mtp; 1475 int error; 1476 char name[MEMTYPE_MAXNAME + 1]; 1477 1478 mtlp = memstat_mtl_alloc(); 1479 if (mtlp == NULL) { 1480 xo_warn("memstat_mtl_alloc"); 1481 return; 1482 } 1483 if (kd == NULL) { 1484 if (memstat_sysctl_uma(mtlp, 0) < 0) { 1485 xo_warnx("memstat_sysctl_uma: %s", 1486 memstat_strerror(memstat_mtl_geterror(mtlp))); 1487 return; 1488 } 1489 } else { 1490 if (memstat_kvm_uma(mtlp, kd) < 0) { 1491 error = memstat_mtl_geterror(mtlp); 1492 if (error == MEMSTAT_ERROR_KVM) 1493 xo_warnx("memstat_kvm_uma: %s", 1494 kvm_geterr(kd)); 1495 else 1496 xo_warnx("memstat_kvm_uma: %s", 1497 memstat_strerror(error)); 1498 } 1499 } 1500 xo_open_container("memory-zone-statistics"); 1501 xo_emit("{T:/%-20s} {T:/%6s} {T:/%6s} {T:/%8s} {T:/%8s} {T:/%8s} {T:/%8s}" 1502 "{T:/%4s} {T:/%4s}\n", "ITEM", "SIZE", 1503 "LIMIT", "USED", "FREE", "REQ", "FAIL", "SLEEP", "XDOMAIN"); 1504 xo_open_list("zone"); 1505 for (mtp = memstat_mtl_first(mtlp); mtp != NULL; 1506 mtp = memstat_mtl_next(mtp)) { 1507 strlcpy(name, memstat_get_name(mtp), MEMTYPE_MAXNAME); 1508 strcat(name, ":"); 1509 xo_open_instance("zone"); 1510 xo_emit("{d:name/%-20s}{ke:name/%s} {:size/%6ju}, " 1511 "{:limit/%6ju},{:used/%8ju}," 1512 "{:free/%8ju},{:requests/%8ju}," 1513 "{:fail/%4ju},{:sleep/%4ju},{:xdomain/%4ju}\n", name, 1514 memstat_get_name(mtp), 1515 (uintmax_t)memstat_get_size(mtp), 1516 (uintmax_t)memstat_get_countlimit(mtp), 1517 (uintmax_t)memstat_get_count(mtp), 1518 (uintmax_t)memstat_get_free(mtp), 1519 (uintmax_t)memstat_get_numallocs(mtp), 1520 (uintmax_t)memstat_get_failures(mtp), 1521 (uintmax_t)memstat_get_sleeps(mtp), 1522 (uintmax_t)memstat_get_xdomain(mtp)); 1523 xo_close_instance("zone"); 1524 } 1525 memstat_mtl_free(mtlp); 1526 xo_close_list("zone"); 1527 xo_close_container("memory-zone-statistics"); 1528} 1529 1530static void 1531display_object(struct kinfo_vmobject *kvo) 1532{ 1533 const char *str; 1534 1535 xo_open_instance("object"); 1536 xo_emit("{:resident/%5ju} ", (uintmax_t)kvo->kvo_resident); 1537 xo_emit("{:active/%5ju} ", (uintmax_t)kvo->kvo_active); 1538 xo_emit("{:inactive/%5ju} ", (uintmax_t)kvo->kvo_inactive); 1539 xo_emit("{:refcount/%3d} ", kvo->kvo_ref_count); 1540 xo_emit("{:shadowcount/%3d} ", kvo->kvo_shadow_count); 1541 1542#define MEMATTR_STR(type, val) \ 1543 if (kvo->kvo_memattr == (type)) { \ 1544 str = (val); \ 1545 } else 1546#ifdef VM_MEMATTR_UNCACHEABLE 1547 MEMATTR_STR(VM_MEMATTR_UNCACHEABLE, "UC") 1548#endif 1549#ifdef VM_MEMATTR_WRITE_COMBINING 1550 MEMATTR_STR(VM_MEMATTR_WRITE_COMBINING, "WC") 1551#endif 1552#ifdef VM_MEMATTR_WRITE_THROUGH 1553 MEMATTR_STR(VM_MEMATTR_WRITE_THROUGH, "WT") 1554#endif 1555#ifdef VM_MEMATTR_WRITE_PROTECTED 1556 MEMATTR_STR(VM_MEMATTR_WRITE_PROTECTED, "WP") 1557#endif 1558#ifdef VM_MEMATTR_WRITE_BACK 1559 MEMATTR_STR(VM_MEMATTR_WRITE_BACK, "WB") 1560#endif 1561#ifdef VM_MEMATTR_WEAK_UNCACHEABLE 1562 MEMATTR_STR(VM_MEMATTR_WEAK_UNCACHEABLE, "UC-") 1563#endif 1564#ifdef VM_MEMATTR_WB_WA 1565 MEMATTR_STR(VM_MEMATTR_WB_WA, "WB") 1566#endif 1567#ifdef VM_MEMATTR_NOCACHE 1568 MEMATTR_STR(VM_MEMATTR_NOCACHE, "NC") 1569#endif 1570#ifdef VM_MEMATTR_DEVICE 1571 MEMATTR_STR(VM_MEMATTR_DEVICE, "DEV") 1572#endif 1573#ifdef VM_MEMATTR_CACHEABLE 1574 MEMATTR_STR(VM_MEMATTR_CACHEABLE, "C") 1575#endif 1576#ifdef VM_MEMATTR_PREFETCHABLE 1577 MEMATTR_STR(VM_MEMATTR_PREFETCHABLE, "PRE") 1578#endif 1579 { 1580 str = "??"; 1581 } 1582#undef MEMATTR_STR 1583 xo_emit("{:attribute/%-3s} ", str); 1584 switch (kvo->kvo_type) { 1585 case KVME_TYPE_NONE: 1586 str = "--"; 1587 break; 1588 case KVME_TYPE_DEFAULT: 1589 str = "df"; 1590 break; 1591 case KVME_TYPE_VNODE: 1592 str = "vn"; 1593 break; 1594 case KVME_TYPE_SWAP: 1595 str = "sw"; 1596 break; 1597 case KVME_TYPE_DEVICE: 1598 str = "dv"; 1599 break; 1600 case KVME_TYPE_PHYS: 1601 str = "ph"; 1602 break; 1603 case KVME_TYPE_DEAD: 1604 str = "dd"; 1605 break; 1606 case KVME_TYPE_SG: 1607 str = "sg"; 1608 break; 1609 case KVME_TYPE_MGTDEVICE: 1610 str = "md"; 1611 break; 1612 case KVME_TYPE_UNKNOWN: 1613 default: 1614 str = "??"; 1615 break; 1616 } 1617 xo_emit("{:type/%-2s} ", str); 1618 xo_emit("{:path/%-s}\n", kvo->kvo_path); 1619 xo_close_instance("object"); 1620} 1621 1622static void 1623doobjstat(void) 1624{ 1625 struct kinfo_vmobject *kvo; 1626 int cnt, i; 1627 1628 kvo = kinfo_getvmobject(&cnt); 1629 if (kvo == NULL) { 1630 xo_warn("Failed to fetch VM object list"); 1631 return; 1632 } 1633 xo_emit("{T:RES/%5s} {T:ACT/%5s} {T:INACT/%5s} {T:REF/%3s} {T:SHD/%3s} " 1634 "{T:CM/%3s} {T:TP/%2s} {T:PATH/%s}\n"); 1635 xo_open_list("object"); 1636 for (i = 0; i < cnt; i++) 1637 display_object(&kvo[i]); 1638 free(kvo); 1639 xo_close_list("object"); 1640} 1641 1642/* 1643 * kread reads something from the kernel, given its nlist index. 1644 */ 1645static void 1646kreado(int nlx, void *addr, size_t size, size_t offset) 1647{ 1648 const char *sym; 1649 1650 if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) { 1651 sym = namelist[nlx].n_name; 1652 if (*sym == '_') 1653 ++sym; 1654 xo_errx(1, "symbol %s not defined", sym); 1655 } 1656 if ((size_t)kvm_read(kd, namelist[nlx].n_value + offset, addr, 1657 size) != size) { 1658 sym = namelist[nlx].n_name; 1659 if (*sym == '_') 1660 ++sym; 1661 xo_errx(1, "%s: %s", sym, kvm_geterr(kd)); 1662 } 1663} 1664 1665static void 1666kread(int nlx, void *addr, size_t size) 1667{ 1668 1669 kreado(nlx, addr, size, 0); 1670} 1671 1672static void 1673kreadptr(uintptr_t addr, void *buf, size_t size) 1674{ 1675 1676 if ((size_t)kvm_read(kd, addr, buf, size) != size) 1677 xo_errx(1, "%s", kvm_geterr(kd)); 1678} 1679 1680static void __dead2 1681usage(void) 1682{ 1683 xo_error("%s%s", 1684 "usage: vmstat [-afHhimoPsz] [-M core [-N system]] [-c count] [-n devs]\n", 1685 " [-p type,if,pass] [-w wait] [disks] [wait [count]]\n"); 1686 xo_finish(); 1687 exit(1); 1688} 1689