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 __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 86 static char da[] = "da"; 87 88 enum x_stats { X_SUM, X_HZ, X_STATHZ, X_NCHSTATS, X_INTRNAMES, X_SINTRNAMES, 89 X_INTRCNT, X_SINTRCNT, X_NINTRCNT }; 90 91 static 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 }; 103 104 static struct devstat_match *matches; 105 static struct device_selection *dev_select; 106 static struct statinfo cur, last; 107 static devstat_select_mode select_mode; 108 static size_t size_cp_times; 109 static long *cur_cp_times, *last_cp_times; 110 static long generation, select_generation; 111 static int hz, hdrcnt, maxshowdevs; 112 static int num_devices, num_devices_specified; 113 static int num_matches, num_selected, num_selections; 114 static char **specified_devices; 115 116 static 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'. */ 170 static volatile sig_atomic_t wresized; /* Tty resized when non-zero. */ 171 static int winlines = VMSTAT_DEFAULT_LINES; /* Current number of tty rows. */ 172 173 static int aflag; 174 static int nflag; 175 static int Pflag; 176 static int hflag; 177 178 static 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 188 189 static void cpustats(void); 190 static void pcpustats(u_long, int); 191 static void devstats(void); 192 static void doforkst(void); 193 static void dointr(unsigned int, int); 194 static void doobjstat(void); 195 static void dosum(void); 196 static void dovmstat(unsigned int, int); 197 static void domemstat_malloc(void); 198 static void domemstat_zone(void); 199 static void kread(int, void *, size_t); 200 static void kreado(int, void *, size_t, size_t); 201 static void kreadptr(uintptr_t, void *, size_t); 202 static void needhdr(int); 203 static void needresize(int); 204 static void doresize(void); 205 static void printhdr(int, u_long); 206 static void usage(void); 207 208 static long pct(long, long); 209 static long long getuptime(void); 210 211 static char **getdrivedata(char **); 212 213 int 214 main(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 } 307 308 retry_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 } 354 nlist_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 } 401 402 static int 403 mysysctl(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 } 412 413 static char ** 414 getdrivedata(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 */ 479 static long long 480 getuptime(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 } 487 488 static void 489 fill_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 } 589 590 static void 591 fill_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 */ 607 static int 608 getcpuinfo(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 } 646 647 648 static void 649 prthuman(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 } 663 664 static void 665 dovmstat(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) (((x) * rate_adj + halfuptime) / uptime) /* round */ 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 (unsigned long)rate(sum.v_vm_faults - 800 osum.v_vm_faults), 5, 0); 801 xo_emit(" "); 802 } else { 803 xo_emit(" "); 804 xo_emit("{:available-memory/%7ju}", 805 vmstat_pgtok(total.t_avm)); 806 xo_emit(" "); 807 xo_emit("{:free-memory/%7ju}", 808 vmstat_pgtok(total.t_free)); 809 xo_emit(" "); 810 xo_emit("{:total-page-faults/%5lu} ", 811 (unsigned long)rate(sum.v_vm_faults - 812 osum.v_vm_faults)); 813 } 814 xo_close_container("memory"); 815 816 xo_open_container("paging-rates"); 817 xo_emit("{:page-reactivated/%3lu} ", 818 (unsigned long)rate(sum.v_reactivated - 819 osum.v_reactivated)); 820 xo_emit("{:paged-in/%3lu} ", 821 (unsigned long)rate(sum.v_swapin + sum.v_vnodein - 822 (osum.v_swapin + osum.v_vnodein))); 823 xo_emit("{:paged-out/%3lu}", 824 (unsigned long)rate(sum.v_swapout + sum.v_vnodeout - 825 (osum.v_swapout + osum.v_vnodeout))); 826 if (hflag) { 827 prthuman("freed", 828 (unsigned long)rate(sum.v_tfree - osum.v_tfree), 829 5, 0); 830 prthuman("scanned", 831 (unsigned long)rate(sum.v_pdpages - osum.v_pdpages), 832 5, 0); 833 xo_emit(" "); 834 } else { 835 xo_emit(" "); 836 xo_emit("{:freed/%5lu} ", 837 (unsigned long)rate(sum.v_tfree - osum.v_tfree)); 838 xo_emit("{:scanned/%4lu} ", 839 (unsigned long)rate(sum.v_pdpages - osum.v_pdpages)); 840 } 841 xo_close_container("paging-rates"); 842 843 devstats(); 844 xo_open_container("fault-rates"); 845 xo_emit("{:interrupts/%4lu}", 846 (unsigned long)rate(sum.v_intr - osum.v_intr)); 847 if (hflag) { 848 prthuman("system-calls", 849 (unsigned long)rate(sum.v_syscall - osum.v_syscall), 850 5, 0); 851 prthuman("context-switches", 852 (unsigned long)rate(sum.v_swtch - osum.v_swtch), 853 5, 0); 854 } else { 855 xo_emit(" "); 856 xo_emit("{:system-calls/%5lu} " 857 "{:context-switches/%5lu}", 858 (unsigned long)rate(sum.v_syscall - osum.v_syscall), 859 (unsigned long)rate(sum.v_swtch - osum.v_swtch)); 860 } 861 xo_close_container("fault-rates"); 862 if (Pflag) 863 pcpustats(cpumask, maxid); 864 else 865 cpustats(); 866 xo_emit("\n"); 867 xo_flush(); 868 if (reps >= 0 && --reps <= 0) 869 break; 870 osum = sum; 871 uptime = interval; 872 rate_adj = 1000; 873 /* 874 * We round upward to avoid losing low-frequency events 875 * (i.e., >= 1 per interval but < 1 per millisecond). 876 */ 877 if (interval != 1) 878 halfuptime = (uptime + 1) / 2; 879 else 880 halfuptime = 0; 881 (void)usleep(interval * 1000); 882 } 883 } 884 885 static void 886 printhdr(int maxid, u_long cpumask) 887 { 888 int i, num_shown; 889 890 num_shown = MIN(num_selected, maxshowdevs); 891 if (hflag) 892 xo_emit(" {T:procs} {T:memory} {T:/page%*s}", 19, ""); 893 else 894 xo_emit("{T:procs} {T:memory} {T:/page%*s}", 19, ""); 895 if (num_shown > 1) 896 xo_emit(" {T:/disks %*s} ", num_shown * 4 - 7, ""); 897 else if (num_shown == 1) 898 xo_emit(" {T:disks}"); 899 xo_emit(" {T:faults} "); 900 if (Pflag) { 901 for (i = 0; i <= maxid; i++) { 902 if (cpumask & (1ul << i)) 903 xo_emit(" {T:/cpu%d} ", i); 904 } 905 xo_emit("\n"); 906 } else 907 xo_emit(" {T:cpu}\n"); 908 if (hflag) { 909 xo_emit(" {T:r} {T:b} {T:w} {T:avm} {T:fre} {T:flt} {T:re}" 910 " {T:pi} {T:po} {T:fr} {T:sr} "); 911 } else { 912 xo_emit("{T:r} {T:b} {T:w} {T:avm} {T:fre} {T:flt} " 913 "{T:re} {T:pi} {T:po} {T:fr} {T:sr} "); 914 } 915 for (i = 0; i < num_devices; i++) 916 if ((dev_select[i].selected) && 917 (dev_select[i].selected <= maxshowdevs)) 918 xo_emit("{T:/%c%c%d} ", dev_select[i].device_name[0], 919 dev_select[i].device_name[1], 920 dev_select[i].unit_number); 921 xo_emit(" {T:in} {T:sy} {T:cs}"); 922 if (Pflag) { 923 for (i = 0; i <= maxid; i++) { 924 if (cpumask & (1ul << i)) 925 xo_emit(" {T:us} {T:sy} {T:id}"); 926 } 927 xo_emit("\n"); 928 } else 929 xo_emit(" {T:us} {T:sy} {T:id}\n"); 930 if (wresized != 0) 931 doresize(); 932 hdrcnt = winlines; 933 } 934 935 /* 936 * Force a header to be prepended to the next output. 937 */ 938 static void 939 needhdr(int dummy __unused) 940 { 941 942 hdrcnt = 1; 943 } 944 945 /* 946 * When the terminal is resized, force an update of the maximum number of rows 947 * printed between each header repetition. Then force a new header to be 948 * prepended to the next output. 949 */ 950 void 951 needresize(int signo __unused) 952 { 953 954 wresized = 1; 955 hdrcnt = 1; 956 } 957 958 /* 959 * Update the global `winlines' count of terminal rows. 960 */ 961 void 962 doresize(void) 963 { 964 struct winsize w; 965 int status; 966 967 for (;;) { 968 status = ioctl(fileno(stdout), TIOCGWINSZ, &w); 969 if (status == -1 && errno == EINTR) 970 continue; 971 else if (status == -1) 972 xo_err(1, "ioctl"); 973 if (w.ws_row > 3) 974 winlines = w.ws_row - 3; 975 else 976 winlines = VMSTAT_DEFAULT_LINES; 977 break; 978 } 979 980 /* 981 * Inhibit doresize() calls until we are rescheduled by SIGWINCH. 982 */ 983 wresized = 0; 984 } 985 986 static long 987 pct(long top, long bot) 988 { 989 long ans; 990 991 if (bot == 0) 992 return(0); 993 ans = (quad_t)top * 100 / bot; 994 return (ans); 995 } 996 997 #define PCT(top, bot) pct((long)(top), (long)(bot)) 998 999 static void 1000 dosum(void) 1001 { 1002 struct nchstats lnchstats; 1003 size_t size; 1004 long nchtotal; 1005 1006 fill_vmmeter(&sum); 1007 xo_open_container("summary-statistics"); 1008 xo_emit("{:context-switches/%9u} {N:cpu context switches}\n", 1009 sum.v_swtch); 1010 xo_emit("{:interrupts/%9u} {N:device interrupts}\n", 1011 sum.v_intr); 1012 xo_emit("{:software-interrupts/%9u} {N:software interrupts}\n", 1013 sum.v_soft); 1014 xo_emit("{:traps/%9u} {N:traps}\n", sum.v_trap); 1015 xo_emit("{:system-calls/%9u} {N:system calls}\n", 1016 sum.v_syscall); 1017 xo_emit("{:kernel-threads/%9u} {N:kernel threads created}\n", 1018 sum.v_kthreads); 1019 xo_emit("{:forks/%9u} {N: fork() calls}\n", sum.v_forks); 1020 xo_emit("{:vforks/%9u} {N:vfork() calls}\n", 1021 sum.v_vforks); 1022 xo_emit("{:rforks/%9u} {N:rfork() calls}\n", 1023 sum.v_rforks); 1024 xo_emit("{:swap-ins/%9u} {N:swap pager pageins}\n", 1025 sum.v_swapin); 1026 xo_emit("{:swap-in-pages/%9u} {N:swap pager pages paged in}\n", 1027 sum.v_swappgsin); 1028 xo_emit("{:swap-outs/%9u} {N:swap pager pageouts}\n", 1029 sum.v_swapout); 1030 xo_emit("{:swap-out-pages/%9u} {N:swap pager pages paged out}\n", 1031 sum.v_swappgsout); 1032 xo_emit("{:vnode-page-ins/%9u} {N:vnode pager pageins}\n", 1033 sum.v_vnodein); 1034 xo_emit("{:vnode-page-in-pages/%9u} {N:vnode pager pages paged in}\n", 1035 sum.v_vnodepgsin); 1036 xo_emit("{:vnode-page-outs/%9u} {N:vnode pager pageouts}\n", 1037 sum.v_vnodeout); 1038 xo_emit("{:vnode-page-out-pages/%9u} {N:vnode pager pages paged out}\n", 1039 sum.v_vnodepgsout); 1040 xo_emit("{:page-daemon-wakeups/%9u} {N:page daemon wakeups}\n", 1041 sum.v_pdwakeups); 1042 xo_emit("{:page-daemon-pages/%9u} {N:pages examined by the page " 1043 "daemon}\n", sum.v_pdpages); 1044 xo_emit("{:page-reclamation-shortfalls/%9u} {N:clean page reclamation " 1045 "shortfalls}\n", sum.v_pdshortfalls); 1046 xo_emit("{:reactivated/%9u} {N:pages reactivated by the page daemon}\n", 1047 sum.v_reactivated); 1048 xo_emit("{:copy-on-write-faults/%9u} {N:copy-on-write faults}\n", 1049 sum.v_cow_faults); 1050 xo_emit("{:copy-on-write-optimized-faults/%9u} {N:copy-on-write " 1051 "optimized faults}\n", sum.v_cow_optim); 1052 xo_emit("{:zero-fill-pages/%9u} {N:zero fill pages zeroed}\n", 1053 sum.v_zfod); 1054 xo_emit("{:zero-fill-prezeroed/%9u} {N:zero fill pages prezeroed}\n", 1055 sum.v_ozfod); 1056 xo_emit("{:intransit-blocking/%9u} {N:intransit blocking page faults}\n", 1057 sum.v_intrans); 1058 xo_emit("{:total-faults/%9u} {N:total VM faults taken}\n", 1059 sum.v_vm_faults); 1060 xo_emit("{:faults-requiring-io/%9u} {N:page faults requiring I\\/O}\n", 1061 sum.v_io_faults); 1062 xo_emit("{:faults-from-thread-creation/%9u} {N:pages affected by " 1063 "kernel thread creation}\n", sum.v_kthreadpages); 1064 xo_emit("{:faults-from-fork/%9u} {N:pages affected by fork}()\n", 1065 sum.v_forkpages); 1066 xo_emit("{:faults-from-vfork/%9u} {N:pages affected by vfork}()\n", 1067 sum.v_vforkpages); 1068 xo_emit("{:pages-rfork/%9u} {N:pages affected by rfork}()\n", 1069 sum.v_rforkpages); 1070 xo_emit("{:pages-freed/%9u} {N:pages freed}\n", 1071 sum.v_tfree); 1072 xo_emit("{:pages-freed-by-daemon/%9u} {N:pages freed by daemon}\n", 1073 sum.v_dfree); 1074 xo_emit("{:pages-freed-on-exit/%9u} {N:pages freed by exiting processes}\n", 1075 sum.v_pfree); 1076 xo_emit("{:active-pages/%9u} {N:pages active}\n", 1077 sum.v_active_count); 1078 xo_emit("{:inactive-pages/%9u} {N:pages inactive}\n", 1079 sum.v_inactive_count); 1080 xo_emit("{:laundry-pages/%9u} {N:pages in the laundry queue}\n", 1081 sum.v_laundry_count); 1082 xo_emit("{:wired-pages/%9u} {N:pages wired down}\n", 1083 sum.v_wire_count); 1084 xo_emit("{:virtual-user-wired-pages/%9lu} {N:virtual user pages wired " 1085 "down}\n", sum.v_user_wire_count); 1086 xo_emit("{:free-pages/%9u} {N:pages free}\n", 1087 sum.v_free_count); 1088 xo_emit("{:bytes-per-page/%9u} {N:bytes per page}\n", sum.v_page_size); 1089 if (kd != NULL) { 1090 kread(X_NCHSTATS, &lnchstats, sizeof(lnchstats)); 1091 } else { 1092 size = sizeof(lnchstats); 1093 mysysctl("vfs.cache.nchstats", &lnchstats, &size); 1094 if (size != sizeof(lnchstats)) 1095 xo_errx(1, "vfs.cache.nchstats size mismatch"); 1096 } 1097 nchtotal = lnchstats.ncs_goodhits + lnchstats.ncs_neghits + 1098 lnchstats.ncs_badhits + lnchstats.ncs_falsehits + 1099 lnchstats.ncs_miss + lnchstats.ncs_long; 1100 xo_emit("{:total-name-lookups/%9ld} {N:total name lookups}\n", 1101 nchtotal); 1102 xo_emit("{P:/%9s} {N:cache hits} " 1103 "({:positive-cache-hits/%ld}% pos + " 1104 "{:negative-cache-hits/%ld}% {N:neg}) " 1105 "system {:cache-hit-percent/%ld}% per-directory\n", 1106 "", PCT(lnchstats.ncs_goodhits, nchtotal), 1107 PCT(lnchstats.ncs_neghits, nchtotal), 1108 PCT(lnchstats.ncs_pass2, nchtotal)); 1109 xo_emit("{P:/%9s} {L:deletions} {:deletions/%ld}%, " 1110 "{L:falsehits} {:false-hits/%ld}%, " 1111 "{L:toolong} {:too-long/%ld}%\n", "", 1112 PCT(lnchstats.ncs_badhits, nchtotal), 1113 PCT(lnchstats.ncs_falsehits, nchtotal), 1114 PCT(lnchstats.ncs_long, nchtotal)); 1115 xo_close_container("summary-statistics"); 1116 } 1117 1118 static void 1119 doforkst(void) 1120 { 1121 1122 fill_vmmeter(&sum); 1123 xo_open_container("fork-statistics"); 1124 xo_emit("{:fork/%u} {N:forks}, {:fork-pages/%u} {N:pages}, " 1125 "{L:average} {:fork-average/%.2f}\n", 1126 sum.v_forks, sum.v_forkpages, 1127 sum.v_forks == 0 ? 0.0 : 1128 (double)sum.v_forkpages / sum.v_forks); 1129 xo_emit("{:vfork/%u} {N:vforks}, {:vfork-pages/%u} {N:pages}, " 1130 "{L:average} {:vfork-average/%.2f}\n", 1131 sum.v_vforks, sum.v_vforkpages, 1132 sum.v_vforks == 0 ? 0.0 : 1133 (double)sum.v_vforkpages / sum.v_vforks); 1134 xo_emit("{:rfork/%u} {N:rforks}, {:rfork-pages/%u} {N:pages}, " 1135 "{L:average} {:rfork-average/%.2f}\n", 1136 sum.v_rforks, sum.v_rforkpages, 1137 sum.v_rforks == 0 ? 0.0 : 1138 (double)sum.v_rforkpages / sum.v_rforks); 1139 xo_close_container("fork-statistics"); 1140 } 1141 1142 static void 1143 devstats(void) 1144 { 1145 long double busy_seconds, transfers_per_second; 1146 long tmp; 1147 int di, dn, state; 1148 1149 for (state = 0; state < CPUSTATES; ++state) { 1150 tmp = cur.cp_time[state]; 1151 cur.cp_time[state] -= last.cp_time[state]; 1152 last.cp_time[state] = tmp; 1153 } 1154 1155 busy_seconds = cur.snap_time - last.snap_time; 1156 1157 xo_open_list("device"); 1158 for (dn = 0; dn < num_devices; dn++) { 1159 if (dev_select[dn].selected == 0 || 1160 dev_select[dn].selected > maxshowdevs) 1161 continue; 1162 1163 di = dev_select[dn].position; 1164 1165 if (devstat_compute_statistics(&cur.dinfo->devices[di], 1166 &last.dinfo->devices[di], busy_seconds, 1167 DSM_TRANSFERS_PER_SECOND, &transfers_per_second, 1168 DSM_NONE) != 0) 1169 xo_errx(1, "%s", devstat_errbuf); 1170 1171 xo_open_instance("device"); 1172 xo_emit("{ekq:name/%c%c%d}{:transfers/%3.0Lf} ", 1173 dev_select[dn].device_name[0], 1174 dev_select[dn].device_name[1], 1175 dev_select[dn].unit_number, 1176 transfers_per_second); 1177 xo_close_instance("device"); 1178 } 1179 xo_close_list("device"); 1180 } 1181 1182 static void 1183 percent(const char *name, double pctv, int *over) 1184 { 1185 int l; 1186 char buf[10]; 1187 char fmt[128]; 1188 1189 snprintf(fmt, sizeof(fmt), " {:%s/%%*s}", name); 1190 l = snprintf(buf, sizeof(buf), "%.0f", pctv); 1191 if (l == 1 && *over) { 1192 xo_emit(fmt, 1, buf); 1193 (*over)--; 1194 } else 1195 xo_emit(fmt, 2, buf); 1196 if (l > 2) 1197 (*over)++; 1198 } 1199 1200 static void 1201 cpustats(void) 1202 { 1203 double lpct, total; 1204 int state, over; 1205 1206 total = 0; 1207 for (state = 0; state < CPUSTATES; ++state) 1208 total += cur.cp_time[state]; 1209 if (total > 0) 1210 lpct = 100.0 / total; 1211 else 1212 lpct = 0.0; 1213 over = 0; 1214 xo_open_container("cpu-statistics"); 1215 percent("user", (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * lpct, 1216 &over); 1217 percent("system", (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * lpct, 1218 &over); 1219 percent("idle", cur.cp_time[CP_IDLE] * lpct, &over); 1220 xo_close_container("cpu-statistics"); 1221 } 1222 1223 static void 1224 pcpustats(u_long cpumask, int maxid) 1225 { 1226 double lpct, total; 1227 long tmp; 1228 int i, over, state; 1229 1230 /* devstats does this for cp_time */ 1231 for (i = 0; i <= maxid; i++) { 1232 if ((cpumask & (1ul << i)) == 0) 1233 continue; 1234 for (state = 0; state < CPUSTATES; ++state) { 1235 tmp = cur_cp_times[i * CPUSTATES + state]; 1236 cur_cp_times[i * CPUSTATES + state] -= last_cp_times[i * 1237 CPUSTATES + state]; 1238 last_cp_times[i * CPUSTATES + state] = tmp; 1239 } 1240 } 1241 1242 over = 0; 1243 xo_open_list("cpu"); 1244 for (i = 0; i <= maxid; i++) { 1245 if ((cpumask & (1ul << i)) == 0) 1246 continue; 1247 xo_open_instance("cpu"); 1248 xo_emit("{ke:name/%d}", i); 1249 total = 0; 1250 for (state = 0; state < CPUSTATES; ++state) 1251 total += cur_cp_times[i * CPUSTATES + state]; 1252 if (total) 1253 lpct = 100.0 / total; 1254 else 1255 lpct = 0.0; 1256 percent("user", (cur_cp_times[i * CPUSTATES + CP_USER] + 1257 cur_cp_times[i * CPUSTATES + CP_NICE]) * lpct, &over); 1258 percent("system", (cur_cp_times[i * CPUSTATES + CP_SYS] + 1259 cur_cp_times[i * CPUSTATES + CP_INTR]) * lpct, &over); 1260 percent("idle", cur_cp_times[i * CPUSTATES + CP_IDLE] * lpct, 1261 &over); 1262 xo_close_instance("cpu"); 1263 } 1264 xo_close_list("cpu"); 1265 } 1266 1267 static unsigned int 1268 read_intrcnts(unsigned long **intrcnts) 1269 { 1270 size_t intrcntlen; 1271 uintptr_t kaddr; 1272 1273 if (kd != NULL) { 1274 kread(X_SINTRCNT, &intrcntlen, sizeof(intrcntlen)); 1275 if ((*intrcnts = malloc(intrcntlen)) == NULL) 1276 err(1, "malloc()"); 1277 if (namelist[X_NINTRCNT].n_type == 0) 1278 kread(X_INTRCNT, *intrcnts, intrcntlen); 1279 else { 1280 kread(X_INTRCNT, &kaddr, sizeof(kaddr)); 1281 kreadptr(kaddr, *intrcnts, intrcntlen); 1282 } 1283 } else { 1284 for (*intrcnts = NULL, intrcntlen = 1024; ; intrcntlen *= 2) { 1285 *intrcnts = reallocf(*intrcnts, intrcntlen); 1286 if (*intrcnts == NULL) 1287 err(1, "reallocf()"); 1288 if (mysysctl("hw.intrcnt", *intrcnts, &intrcntlen) == 0) 1289 break; 1290 } 1291 } 1292 1293 return (intrcntlen / sizeof(unsigned long)); 1294 } 1295 1296 static void 1297 print_intrcnts(unsigned long *intrcnts, unsigned long *old_intrcnts, 1298 char *intrnames, unsigned int nintr, size_t istrnamlen, long long period_ms) 1299 { 1300 unsigned long *intrcnt, *old_intrcnt; 1301 char *intrname; 1302 uint64_t inttotal, old_inttotal, total_count, total_rate; 1303 unsigned long count, rate; 1304 unsigned int i; 1305 1306 inttotal = 0; 1307 old_inttotal = 0; 1308 intrname = intrnames; 1309 xo_open_list("interrupt"); 1310 for (i = 0, intrcnt=intrcnts, old_intrcnt=old_intrcnts; i < nintr; i++) { 1311 if (intrname[0] != '\0' && (*intrcnt != 0 || aflag)) { 1312 count = *intrcnt - *old_intrcnt; 1313 rate = ((uint64_t)count * 1000 + period_ms / 2) / period_ms; 1314 xo_open_instance("interrupt"); 1315 xo_emit("{d:name/%-*s}{ket:name/%s} " 1316 "{:total/%20lu} {:rate/%10lu}\n", 1317 (int)istrnamlen, intrname, intrname, count, rate); 1318 xo_close_instance("interrupt"); 1319 } 1320 intrname += strlen(intrname) + 1; 1321 inttotal += *intrcnt++; 1322 old_inttotal += *old_intrcnt++; 1323 } 1324 total_count = inttotal - old_inttotal; 1325 total_rate = (total_count * 1000 + period_ms / 2) / period_ms; 1326 xo_close_list("interrupt"); 1327 xo_emit("{L:/%-*s} {:total-interrupts/%20ju} " 1328 "{:total-rate/%10ju}\n", (int)istrnamlen, 1329 "Total", (uintmax_t)total_count, (uintmax_t)total_rate); 1330 } 1331 1332 static void 1333 dointr(unsigned int interval, int reps) 1334 { 1335 unsigned long *intrcnts, *old_intrcnts; 1336 char *intrname, *intrnames; 1337 long long period_ms, old_uptime, uptime; 1338 size_t clen, inamlen, istrnamlen; 1339 uintptr_t kaddr; 1340 unsigned int nintr; 1341 1342 old_intrcnts = NULL; 1343 uptime = getuptime(); 1344 1345 /* Get the names of each interrupt source */ 1346 if (kd != NULL) { 1347 kread(X_SINTRNAMES, &inamlen, sizeof(inamlen)); 1348 if ((intrnames = malloc(inamlen)) == NULL) 1349 xo_err(1, "malloc()"); 1350 if (namelist[X_NINTRCNT].n_type == 0) 1351 kread(X_INTRNAMES, intrnames, inamlen); 1352 else { 1353 kread(X_INTRNAMES, &kaddr, sizeof(kaddr)); 1354 kreadptr(kaddr, intrnames, inamlen); 1355 } 1356 } else { 1357 for (intrnames = NULL, inamlen = 1024; ; inamlen *= 2) { 1358 if ((intrnames = reallocf(intrnames, inamlen)) == NULL) 1359 xo_err(1, "reallocf()"); 1360 if (mysysctl("hw.intrnames", intrnames, &inamlen) == 0) 1361 break; 1362 } 1363 } 1364 1365 /* Determine the length of the longest interrupt name */ 1366 intrname = intrnames; 1367 istrnamlen = strlen("interrupt"); 1368 while(*intrname != '\0') { 1369 clen = strlen(intrname); 1370 if (clen > istrnamlen) 1371 istrnamlen = clen; 1372 intrname += strlen(intrname) + 1; 1373 } 1374 xo_emit("{T:/%-*s} {T:/%20s} {T:/%10s}\n", 1375 (int)istrnamlen, "interrupt", "total", "rate"); 1376 1377 /* 1378 * Loop reps times printing differential interrupt counts. If reps is 1379 * zero, then run just once, printing total counts 1380 */ 1381 xo_open_container("interrupt-statistics"); 1382 1383 period_ms = uptime / 1000000; 1384 while(1) { 1385 nintr = read_intrcnts(&intrcnts); 1386 /* 1387 * Initialize old_intrcnts to 0 for the first pass, so 1388 * print_intrcnts will print total interrupts since boot 1389 */ 1390 if (old_intrcnts == NULL) { 1391 old_intrcnts = calloc(nintr, sizeof(unsigned long)); 1392 if (old_intrcnts == NULL) 1393 xo_err(1, "calloc()"); 1394 } 1395 1396 print_intrcnts(intrcnts, old_intrcnts, intrnames, nintr, 1397 istrnamlen, period_ms); 1398 xo_flush(); 1399 1400 free(old_intrcnts); 1401 old_intrcnts = intrcnts; 1402 if (reps >= 0 && --reps <= 0) 1403 break; 1404 usleep(interval * 1000); 1405 old_uptime = uptime; 1406 uptime = getuptime(); 1407 period_ms = (uptime - old_uptime) / 1000000; 1408 } 1409 1410 xo_close_container("interrupt-statistics"); 1411 } 1412 1413 static void 1414 domemstat_malloc(void) 1415 { 1416 struct memory_type_list *mtlp; 1417 struct memory_type *mtp; 1418 int error, first, i; 1419 1420 mtlp = memstat_mtl_alloc(); 1421 if (mtlp == NULL) { 1422 xo_warn("memstat_mtl_alloc"); 1423 return; 1424 } 1425 if (kd == NULL) { 1426 if (memstat_sysctl_malloc(mtlp, 0) < 0) { 1427 xo_warnx("memstat_sysctl_malloc: %s", 1428 memstat_strerror(memstat_mtl_geterror(mtlp))); 1429 return; 1430 } 1431 } else { 1432 if (memstat_kvm_malloc(mtlp, kd) < 0) { 1433 error = memstat_mtl_geterror(mtlp); 1434 if (error == MEMSTAT_ERROR_KVM) 1435 xo_warnx("memstat_kvm_malloc: %s", 1436 kvm_geterr(kd)); 1437 else 1438 xo_warnx("memstat_kvm_malloc: %s", 1439 memstat_strerror(error)); 1440 } 1441 } 1442 xo_open_container("malloc-statistics"); 1443 xo_emit("{T:/%13s} {T:/%5s} {T:/%6s} {T:/%7s} {T:/%8s} {T:Size(s)}\n", 1444 "Type", "InUse", "MemUse", "HighUse", "Requests"); 1445 xo_open_list("memory"); 1446 for (mtp = memstat_mtl_first(mtlp); mtp != NULL; 1447 mtp = memstat_mtl_next(mtp)) { 1448 if (memstat_get_numallocs(mtp) == 0 && 1449 memstat_get_count(mtp) == 0) 1450 continue; 1451 xo_open_instance("memory"); 1452 xo_emit("{k:type/%13s/%s} {:in-use/%5ju} " 1453 "{:memory-use/%5ju}{U:K} {:high-use/%7s} " 1454 "{:requests/%8ju} ", 1455 memstat_get_name(mtp), (uintmax_t)memstat_get_count(mtp), 1456 ((uintmax_t)memstat_get_bytes(mtp) + 1023) / 1024, "-", 1457 (uintmax_t)memstat_get_numallocs(mtp)); 1458 first = 1; 1459 xo_open_list("size"); 1460 for (i = 0; i < 32; i++) { 1461 if (memstat_get_sizemask(mtp) & (1 << i)) { 1462 if (!first) 1463 xo_emit(","); 1464 xo_emit("{l:size/%d}", 1 << (i + 4)); 1465 first = 0; 1466 } 1467 } 1468 xo_close_list("size"); 1469 xo_close_instance("memory"); 1470 xo_emit("\n"); 1471 } 1472 xo_close_list("memory"); 1473 xo_close_container("malloc-statistics"); 1474 memstat_mtl_free(mtlp); 1475 } 1476 1477 static void 1478 domemstat_zone(void) 1479 { 1480 struct memory_type_list *mtlp; 1481 struct memory_type *mtp; 1482 int error; 1483 char name[MEMTYPE_MAXNAME + 1]; 1484 1485 mtlp = memstat_mtl_alloc(); 1486 if (mtlp == NULL) { 1487 xo_warn("memstat_mtl_alloc"); 1488 return; 1489 } 1490 if (kd == NULL) { 1491 if (memstat_sysctl_uma(mtlp, 0) < 0) { 1492 xo_warnx("memstat_sysctl_uma: %s", 1493 memstat_strerror(memstat_mtl_geterror(mtlp))); 1494 return; 1495 } 1496 } else { 1497 if (memstat_kvm_uma(mtlp, kd) < 0) { 1498 error = memstat_mtl_geterror(mtlp); 1499 if (error == MEMSTAT_ERROR_KVM) 1500 xo_warnx("memstat_kvm_uma: %s", 1501 kvm_geterr(kd)); 1502 else 1503 xo_warnx("memstat_kvm_uma: %s", 1504 memstat_strerror(error)); 1505 } 1506 } 1507 xo_open_container("memory-zone-statistics"); 1508 xo_emit("{T:/%-20s} {T:/%6s} {T:/%6s} {T:/%8s} {T:/%8s} {T:/%8s} {T:/%8s}" 1509 "{T:/%4s} {T:/%4s}\n\n", "ITEM", "SIZE", 1510 "LIMIT", "USED", "FREE", "REQ", "FAIL", "SLEEP", "XDOMAIN"); 1511 xo_open_list("zone"); 1512 for (mtp = memstat_mtl_first(mtlp); mtp != NULL; 1513 mtp = memstat_mtl_next(mtp)) { 1514 strlcpy(name, memstat_get_name(mtp), MEMTYPE_MAXNAME); 1515 strcat(name, ":"); 1516 xo_open_instance("zone"); 1517 xo_emit("{d:name/%-20s}{ke:name/%s} {:size/%6ju}, " 1518 "{:limit/%6ju},{:used/%8ju}," 1519 "{:free/%8ju},{:requests/%8ju}," 1520 "{:fail/%4ju},{:sleep/%4ju},{:xdomain/%4ju}\n", name, 1521 memstat_get_name(mtp), 1522 (uintmax_t)memstat_get_size(mtp), 1523 (uintmax_t)memstat_get_countlimit(mtp), 1524 (uintmax_t)memstat_get_count(mtp), 1525 (uintmax_t)memstat_get_free(mtp), 1526 (uintmax_t)memstat_get_numallocs(mtp), 1527 (uintmax_t)memstat_get_failures(mtp), 1528 (uintmax_t)memstat_get_sleeps(mtp), 1529 (uintmax_t)memstat_get_xdomain(mtp)); 1530 xo_close_instance("zone"); 1531 } 1532 memstat_mtl_free(mtlp); 1533 xo_close_list("zone"); 1534 xo_close_container("memory-zone-statistics"); 1535 xo_emit("\n"); 1536 } 1537 1538 static void 1539 display_object(struct kinfo_vmobject *kvo) 1540 { 1541 const char *str; 1542 1543 xo_open_instance("object"); 1544 xo_emit("{:resident/%5ju} ", (uintmax_t)kvo->kvo_resident); 1545 xo_emit("{:active/%5ju} ", (uintmax_t)kvo->kvo_active); 1546 xo_emit("{:inactive/%5ju} ", (uintmax_t)kvo->kvo_inactive); 1547 xo_emit("{:refcount/%3d} ", kvo->kvo_ref_count); 1548 xo_emit("{:shadowcount/%3d} ", kvo->kvo_shadow_count); 1549 switch (kvo->kvo_memattr) { 1550 #ifdef VM_MEMATTR_UNCACHEABLE 1551 case VM_MEMATTR_UNCACHEABLE: 1552 str = "UC"; 1553 break; 1554 #endif 1555 #ifdef VM_MEMATTR_WRITE_COMBINING 1556 case VM_MEMATTR_WRITE_COMBINING: 1557 str = "WC"; 1558 break; 1559 #endif 1560 #ifdef VM_MEMATTR_WRITE_THROUGH 1561 case VM_MEMATTR_WRITE_THROUGH: 1562 str = "WT"; 1563 break; 1564 #endif 1565 #ifdef VM_MEMATTR_WRITE_PROTECTED 1566 case VM_MEMATTR_WRITE_PROTECTED: 1567 str = "WP"; 1568 break; 1569 #endif 1570 #ifdef VM_MEMATTR_WRITE_BACK 1571 case VM_MEMATTR_WRITE_BACK: 1572 str = "WB"; 1573 break; 1574 #endif 1575 #ifdef VM_MEMATTR_WEAK_UNCACHEABLE 1576 case VM_MEMATTR_WEAK_UNCACHEABLE: 1577 str = "UC-"; 1578 break; 1579 #endif 1580 #ifdef VM_MEMATTR_WB_WA 1581 case VM_MEMATTR_WB_WA: 1582 str = "WB"; 1583 break; 1584 #endif 1585 #ifdef VM_MEMATTR_NOCACHE 1586 case VM_MEMATTR_NOCACHE: 1587 str = "NC"; 1588 break; 1589 #endif 1590 #ifdef VM_MEMATTR_DEVICE 1591 case VM_MEMATTR_DEVICE: 1592 str = "DEV"; 1593 break; 1594 #endif 1595 #ifdef VM_MEMATTR_CACHEABLE 1596 case VM_MEMATTR_CACHEABLE: 1597 str = "C"; 1598 break; 1599 #endif 1600 #ifdef VM_MEMATTR_PREFETCHABLE 1601 case VM_MEMATTR_PREFETCHABLE: 1602 str = "PRE"; 1603 break; 1604 #endif 1605 default: 1606 str = "??"; 1607 break; 1608 } 1609 xo_emit("{:attribute/%-3s} ", str); 1610 switch (kvo->kvo_type) { 1611 case KVME_TYPE_NONE: 1612 str = "--"; 1613 break; 1614 case KVME_TYPE_DEFAULT: 1615 str = "df"; 1616 break; 1617 case KVME_TYPE_VNODE: 1618 str = "vn"; 1619 break; 1620 case KVME_TYPE_SWAP: 1621 str = "sw"; 1622 break; 1623 case KVME_TYPE_DEVICE: 1624 str = "dv"; 1625 break; 1626 case KVME_TYPE_PHYS: 1627 str = "ph"; 1628 break; 1629 case KVME_TYPE_DEAD: 1630 str = "dd"; 1631 break; 1632 case KVME_TYPE_SG: 1633 str = "sg"; 1634 break; 1635 case KVME_TYPE_MGTDEVICE: 1636 str = "md"; 1637 break; 1638 case KVME_TYPE_UNKNOWN: 1639 default: 1640 str = "??"; 1641 break; 1642 } 1643 xo_emit("{:type/%-2s} ", str); 1644 xo_emit("{:path/%-s}\n", kvo->kvo_path); 1645 xo_close_instance("object"); 1646 } 1647 1648 static void 1649 doobjstat(void) 1650 { 1651 struct kinfo_vmobject *kvo; 1652 int cnt, i; 1653 1654 kvo = kinfo_getvmobject(&cnt); 1655 if (kvo == NULL) { 1656 xo_warn("Failed to fetch VM object list"); 1657 return; 1658 } 1659 xo_emit("{T:RES/%5s} {T:ACT/%5s} {T:INACT/%5s} {T:REF/%3s} {T:SHD/%3s} " 1660 "{T:CM/%3s} {T:TP/%2s} {T:PATH/%s}\n"); 1661 xo_open_list("object"); 1662 for (i = 0; i < cnt; i++) 1663 display_object(&kvo[i]); 1664 free(kvo); 1665 xo_close_list("object"); 1666 } 1667 1668 /* 1669 * kread reads something from the kernel, given its nlist index. 1670 */ 1671 static void 1672 kreado(int nlx, void *addr, size_t size, size_t offset) 1673 { 1674 const char *sym; 1675 1676 if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) { 1677 sym = namelist[nlx].n_name; 1678 if (*sym == '_') 1679 ++sym; 1680 xo_errx(1, "symbol %s not defined", sym); 1681 } 1682 if ((size_t)kvm_read(kd, namelist[nlx].n_value + offset, addr, 1683 size) != size) { 1684 sym = namelist[nlx].n_name; 1685 if (*sym == '_') 1686 ++sym; 1687 xo_errx(1, "%s: %s", sym, kvm_geterr(kd)); 1688 } 1689 } 1690 1691 static void 1692 kread(int nlx, void *addr, size_t size) 1693 { 1694 1695 kreado(nlx, addr, size, 0); 1696 } 1697 1698 static void 1699 kreadptr(uintptr_t addr, void *buf, size_t size) 1700 { 1701 1702 if ((size_t)kvm_read(kd, addr, buf, size) != size) 1703 xo_errx(1, "%s", kvm_geterr(kd)); 1704 } 1705 1706 static void __dead2 1707 usage(void) 1708 { 1709 xo_error("%s%s", 1710 "usage: vmstat [-afHhimoPsz] [-M core [-N system]] [-c count] [-n devs]\n", 1711 " [-p type,if,pass] [-w wait] [disks] [wait [count]]\n"); 1712 xo_finish(); 1713 exit(1); 1714 } 1715