1/* 2 * Copyright (c) 1980, 1986, 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30#ifndef lint 31static const char copyright[] = 32"@(#) Copyright (c) 1980, 1986, 1991, 1993\n\ 33 The Regents of the University of California. All rights reserved.\n"; 34#endif /* not lint */ 35 36#if 0 37#ifndef lint 38static char sccsid[] = "@(#)vmstat.c 8.1 (Berkeley) 6/6/93"; 39#endif /* not lint */ 40#endif 41 42#include <sys/cdefs.h> 43__FBSDID("$FreeBSD: stable/11/usr.bin/vmstat/vmstat.c 357134 2020-01-26 04:54:17Z nyan $"); 44 45#include <sys/param.h> 46#include <sys/proc.h> 47#include <sys/uio.h> 48#include <sys/namei.h> 49#include <sys/malloc.h> 50#include <sys/signal.h> 51#include <sys/fcntl.h> 52#include <sys/ioctl.h> 53#include <sys/resource.h> 54#include <sys/sysctl.h> 55#include <sys/time.h> 56#include <sys/user.h> 57#include <sys/vmmeter.h> 58#include <sys/pcpu.h> 59 60#include <vm/vm_param.h> 61 62#include <ctype.h> 63#include <devstat.h> 64#include <err.h> 65#include <errno.h> 66#include <inttypes.h> 67#include <kvm.h> 68#include <limits.h> 69#include <memstat.h> 70#include <nlist.h> 71#include <paths.h> 72#include <stdio.h> 73#include <stdlib.h> 74#include <string.h> 75#include <sysexits.h> 76#include <time.h> 77#include <unistd.h> 78#include <libutil.h> 79#include <libxo/xo.h> 80 81#define VMSTAT_XO_VERSION "1" 82 83static char da[] = "da"; 84 85enum x_stats { X_SUM, X_HZ, X_STATHZ, X_NCHSTATS, X_INTRNAMES, X_SINTRNAMES, 86 X_INTRCNT, X_SINTRCNT, X_NINTRCNT }; 87 88static struct nlist namelist[] = { 89 [X_SUM] = { .n_name = "_vm_cnt", }, 90 [X_HZ] = { .n_name = "_hz", }, 91 [X_STATHZ] = { .n_name = "_stathz", }, 92 [X_NCHSTATS] = { .n_name = "_nchstats", }, 93 [X_INTRNAMES] = { .n_name = "_intrnames", }, 94 [X_SINTRNAMES] = { .n_name = "_sintrnames", }, 95 [X_INTRCNT] = { .n_name = "_intrcnt", }, 96 [X_SINTRCNT] = { .n_name = "_sintrcnt", }, 97 [X_NINTRCNT] = { .n_name = "_nintrcnt", }, 98 { .n_name = NULL, }, 99}; 100 101static struct devstat_match *matches; 102static struct device_selection *dev_select; 103static struct statinfo cur, last; 104static devstat_select_mode select_mode; 105static size_t size_cp_times; 106static long *cur_cp_times, *last_cp_times; 107static long generation, select_generation; 108static int hz, hdrcnt, maxshowdevs; 109static int num_devices, num_devices_specified; 110static int num_matches, num_selected, num_selections; 111static char **specified_devices; 112 113static struct vmmeter sum, osum; 114 115#define VMSTAT_DEFAULT_LINES 20 /* Default number of `winlines'. */ 116static volatile sig_atomic_t wresized; /* Tty resized when non-zero. */ 117static int winlines = VMSTAT_DEFAULT_LINES; /* Current number of tty rows. */ 118 119static int aflag; 120static int nflag; 121static int Pflag; 122static int hflag; 123 124static kvm_t *kd; 125 126#define FORKSTAT 0x01 127#define INTRSTAT 0x02 128#define MEMSTAT 0x04 129#define SUMSTAT 0x08 130#define TIMESTAT 0x10 131#define VMSTAT 0x20 132#define ZMEMSTAT 0x40 133#define OBJSTAT 0x80 134 135static void cpustats(void); 136static void pcpustats(u_long, int); 137static void devstats(void); 138static void doforkst(void); 139static void dointr(unsigned int, int); 140static void doobjstat(void); 141static void dosum(void); 142static void dovmstat(unsigned int, int); 143static void domemstat_malloc(void); 144static void domemstat_zone(void); 145static void kread(int, void *, size_t); 146static void kreado(int, void *, size_t, size_t); 147static void kreadptr(uintptr_t, void *, size_t); 148static void needhdr(int); 149static void needresize(int); 150static void doresize(void); 151static void printhdr(int, u_long); 152static void usage(void); 153 154static long pct(long, long); 155static long long getuptime(void); 156 157static char **getdrivedata(char **); 158 159int 160main(int argc, char *argv[]) 161{ 162 char *bp, *buf, *memf, *nlistf; 163 float f; 164 int bufsize, c, len, reps, todo; 165 unsigned int interval; 166 char errbuf[_POSIX2_LINE_MAX]; 167 168 memf = nlistf = NULL; 169 interval = reps = todo = 0; 170 maxshowdevs = 2; 171 hflag = isatty(1); 172 173 argc = xo_parse_args(argc, argv); 174 if (argc < 0) 175 return (argc); 176 177 while ((c = getopt(argc, argv, "ac:fhHiM:mN:n:oPp:sw:z")) != -1) { 178 switch (c) { 179 case 'a': 180 aflag++; 181 break; 182 case 'c': 183 reps = atoi(optarg); 184 break; 185 case 'P': 186 Pflag++; 187 break; 188 case 'f': 189 todo |= FORKSTAT; 190 break; 191 case 'h': 192 hflag = 1; 193 break; 194 case 'H': 195 hflag = 0; 196 break; 197 case 'i': 198 todo |= INTRSTAT; 199 break; 200 case 'M': 201 memf = optarg; 202 break; 203 case 'm': 204 todo |= MEMSTAT; 205 break; 206 case 'N': 207 nlistf = optarg; 208 break; 209 case 'n': 210 nflag = 1; 211 maxshowdevs = atoi(optarg); 212 if (maxshowdevs < 0) 213 xo_errx(1, "number of devices %d is < 0", 214 maxshowdevs); 215 break; 216 case 'o': 217 todo |= OBJSTAT; 218 break; 219 case 'p': 220 if (devstat_buildmatch(optarg, &matches, &num_matches) 221 != 0) 222 xo_errx(1, "%s", devstat_errbuf); 223 break; 224 case 's': 225 todo |= SUMSTAT; 226 break; 227 case 'w': 228 /* Convert to milliseconds. */ 229 f = atof(optarg); 230 interval = f * 1000; 231 break; 232 case 'z': 233 todo |= ZMEMSTAT; 234 break; 235 case '?': 236 default: 237 usage(); 238 } 239 } 240 argc -= optind; 241 argv += optind; 242 243 xo_set_version(VMSTAT_XO_VERSION); 244 if (todo == 0) 245 todo = VMSTAT; 246 247 if (memf != NULL) { 248 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf); 249 if (kd == NULL) 250 xo_errx(1, "kvm_openfiles: %s", errbuf); 251 } 252 253retry_nlist: 254 if (kd != NULL && (c = kvm_nlist(kd, namelist)) != 0) { 255 if (c > 0) { 256 bufsize = 0, len = 0; 257 258 /* 259 * 'cnt' was renamed to 'vm_cnt'. If 'vm_cnt' is not 260 * found try looking up older 'cnt' symbol. 261 * */ 262 if (namelist[X_SUM].n_type == 0 && 263 strcmp(namelist[X_SUM].n_name, "_vm_cnt") == 0) { 264 namelist[X_SUM].n_name = "_cnt"; 265 goto retry_nlist; 266 } 267 268 /* 269 * 'nintrcnt' doesn't exist in older kernels, but 270 * that isn't fatal. 271 */ 272 if (namelist[X_NINTRCNT].n_type == 0 && c == 1) 273 goto nlist_ok; 274 275 for (c = 0; c < (int)(nitems(namelist)); c++) 276 if (namelist[c].n_type == 0) 277 bufsize += strlen(namelist[c].n_name) 278 + 1; 279 bufsize += len + 1; 280 buf = bp = alloca(bufsize); 281 282 for (c = 0; c < (int)(nitems(namelist)); c++) 283 if (namelist[c].n_type == 0) { 284 xo_error(" %s", 285 namelist[c].n_name); 286 len = strlen(namelist[c].n_name); 287 *bp++ = ' '; 288 memcpy(bp, namelist[c].n_name, len); 289 bp += len; 290 } 291 *bp = '\0'; 292 xo_error("undefined symbols:\n", buf); 293 } else 294 xo_warnx("kvm_nlist: %s", kvm_geterr(kd)); 295 xo_finish(); 296 exit(1); 297 } 298nlist_ok: 299 if (kd && Pflag) 300 xo_errx(1, "Cannot use -P with crash dumps"); 301 302 if (todo & VMSTAT) { 303 /* 304 * Make sure that the userland devstat version matches the 305 * kernel devstat version. If not, exit and print a 306 * message informing the user of his mistake. 307 */ 308 if (devstat_checkversion(NULL) < 0) 309 xo_errx(1, "%s", devstat_errbuf); 310 311 312 argv = getdrivedata(argv); 313 } 314 315 if (*argv) { 316 f = atof(*argv); 317 interval = f * 1000; 318 if (*++argv) 319 reps = atoi(*argv); 320 } 321 322 if (interval) { 323 if (!reps) 324 reps = -1; 325 } else if (reps) 326 interval = 1 * 1000; 327 328 if (todo & FORKSTAT) 329 doforkst(); 330 if (todo & MEMSTAT) 331 domemstat_malloc(); 332 if (todo & ZMEMSTAT) 333 domemstat_zone(); 334 if (todo & SUMSTAT) 335 dosum(); 336 if (todo & OBJSTAT) 337 doobjstat(); 338 if (todo & INTRSTAT) 339 dointr(interval, reps); 340 if (todo & VMSTAT) 341 dovmstat(interval, reps); 342 xo_finish(); 343 exit(0); 344} 345 346static int 347mysysctl(const char *name, void *oldp, size_t *oldlenp, 348 void *newp, size_t newlen) 349{ 350 int error; 351 352 error = sysctlbyname(name, oldp, oldlenp, newp, newlen); 353 if (error != 0 && errno != ENOMEM) 354 xo_err(1, "sysctl(%s)", name); 355 return (error); 356} 357 358static char ** 359getdrivedata(char **argv) 360{ 361 362 if ((num_devices = devstat_getnumdevs(NULL)) < 0) 363 xo_errx(1, "%s", devstat_errbuf); 364 365 cur.dinfo = (struct devinfo *)calloc(1, sizeof(struct devinfo)); 366 last.dinfo = (struct devinfo *)calloc(1, sizeof(struct devinfo)); 367 368 if (devstat_getdevs(NULL, &cur) == -1) 369 xo_errx(1, "%s", devstat_errbuf); 370 371 num_devices = cur.dinfo->numdevs; 372 generation = cur.dinfo->generation; 373 374 specified_devices = malloc(sizeof(char *)); 375 for (num_devices_specified = 0; *argv; ++argv) { 376 if (isdigit(**argv)) 377 break; 378 num_devices_specified++; 379 specified_devices = realloc(specified_devices, 380 sizeof(char *) * num_devices_specified); 381 specified_devices[num_devices_specified - 1] = *argv; 382 } 383 dev_select = NULL; 384 385 if (nflag == 0 && maxshowdevs < num_devices_specified) 386 maxshowdevs = num_devices_specified; 387 388 /* 389 * People are generally only interested in disk statistics when 390 * they're running vmstat. So, that's what we're going to give 391 * them if they don't specify anything by default. We'll also give 392 * them any other random devices in the system so that we get to 393 * maxshowdevs devices, if that many devices exist. If the user 394 * specifies devices on the command line, either through a pattern 395 * match or by naming them explicitly, we will give the user only 396 * those devices. 397 */ 398 if ((num_devices_specified == 0) && (num_matches == 0)) { 399 if (devstat_buildmatch(da, &matches, &num_matches) != 0) 400 xo_errx(1, "%s", devstat_errbuf); 401 select_mode = DS_SELECT_ADD; 402 } else 403 select_mode = DS_SELECT_ONLY; 404 405 /* 406 * At this point, selectdevs will almost surely indicate that the 407 * device list has changed, so we don't look for return values of 0 408 * or 1. If we get back -1, though, there is an error. 409 */ 410 if (devstat_selectdevs(&dev_select, &num_selected, &num_selections, 411 &select_generation, generation, cur.dinfo->devices, 412 num_devices, matches, num_matches, specified_devices, 413 num_devices_specified, select_mode, 414 maxshowdevs, 0) == -1) 415 xo_errx(1, "%s", devstat_errbuf); 416 417 return(argv); 418} 419 420/* Return system uptime in nanoseconds */ 421static long long 422getuptime(void) 423{ 424 struct timespec sp; 425 426 (void)clock_gettime(CLOCK_UPTIME, &sp); 427 return((long long)sp.tv_sec * 1000000000LL + sp.tv_nsec); 428} 429 430static void 431fill_pcpu(struct pcpu ***pcpup, int* maxcpup) 432{ 433 struct pcpu **pcpu; 434 int maxcpu, i; 435 436 *pcpup = NULL; 437 *maxcpup = 0; 438 439 if (kd == NULL) 440 return; 441 442 maxcpu = kvm_getmaxcpu(kd); 443 if (maxcpu < 0) 444 xo_errx(1, "kvm_getmaxcpu: %s", kvm_geterr(kd)); 445 446 pcpu = calloc(maxcpu, sizeof(struct pcpu *)); 447 if (pcpu == NULL) 448 xo_err(1, "calloc"); 449 450 for (i = 0; i < maxcpu; i++) { 451 pcpu[i] = kvm_getpcpu(kd, i); 452 if (pcpu[i] == (struct pcpu *)-1) 453 xo_errx(1, "kvm_getpcpu: %s", kvm_geterr(kd)); 454 } 455 456 *maxcpup = maxcpu; 457 *pcpup = pcpu; 458} 459 460static void 461free_pcpu(struct pcpu **pcpu, int maxcpu) 462{ 463 int i; 464 465 for (i = 0; i < maxcpu; i++) 466 free(pcpu[i]); 467 free(pcpu); 468} 469 470static void 471fill_vmmeter(struct vmmeter *vmmp) 472{ 473 struct pcpu **pcpu; 474 int maxcpu, i; 475 size_t size; 476 477 if (kd != NULL) { 478 kread(X_SUM, vmmp, sizeof(*vmmp)); 479 fill_pcpu(&pcpu, &maxcpu); 480 for (i = 0; i < maxcpu; i++) { 481 if (pcpu[i] == NULL) 482 continue; 483#define ADD_FROM_PCPU(i, name) \ 484 vmmp->name += pcpu[i]->pc_cnt.name 485 ADD_FROM_PCPU(i, v_swtch); 486 ADD_FROM_PCPU(i, v_trap); 487 ADD_FROM_PCPU(i, v_syscall); 488 ADD_FROM_PCPU(i, v_intr); 489 ADD_FROM_PCPU(i, v_soft); 490 ADD_FROM_PCPU(i, v_vm_faults); 491 ADD_FROM_PCPU(i, v_io_faults); 492 ADD_FROM_PCPU(i, v_cow_faults); 493 ADD_FROM_PCPU(i, v_cow_optim); 494 ADD_FROM_PCPU(i, v_zfod); 495 ADD_FROM_PCPU(i, v_ozfod); 496 ADD_FROM_PCPU(i, v_swapin); 497 ADD_FROM_PCPU(i, v_swapout); 498 ADD_FROM_PCPU(i, v_swappgsin); 499 ADD_FROM_PCPU(i, v_swappgsout); 500 ADD_FROM_PCPU(i, v_vnodein); 501 ADD_FROM_PCPU(i, v_vnodeout); 502 ADD_FROM_PCPU(i, v_vnodepgsin); 503 ADD_FROM_PCPU(i, v_vnodepgsout); 504 ADD_FROM_PCPU(i, v_intrans); 505 ADD_FROM_PCPU(i, v_tfree); 506 ADD_FROM_PCPU(i, v_forks); 507 ADD_FROM_PCPU(i, v_vforks); 508 ADD_FROM_PCPU(i, v_rforks); 509 ADD_FROM_PCPU(i, v_kthreads); 510 ADD_FROM_PCPU(i, v_forkpages); 511 ADD_FROM_PCPU(i, v_vforkpages); 512 ADD_FROM_PCPU(i, v_rforkpages); 513 ADD_FROM_PCPU(i, v_kthreadpages); 514#undef ADD_FROM_PCPU 515 } 516 free_pcpu(pcpu, maxcpu); 517 } else { 518 size = sizeof(unsigned int); 519#define GET_VM_STATS(cat, name) \ 520 mysysctl("vm.stats." #cat "." #name, &vmmp->name, &size, NULL, 0) 521 /* sys */ 522 GET_VM_STATS(sys, v_swtch); 523 GET_VM_STATS(sys, v_trap); 524 GET_VM_STATS(sys, v_syscall); 525 GET_VM_STATS(sys, v_intr); 526 GET_VM_STATS(sys, v_soft); 527 528 /* vm */ 529 GET_VM_STATS(vm, v_vm_faults); 530 GET_VM_STATS(vm, v_io_faults); 531 GET_VM_STATS(vm, v_cow_faults); 532 GET_VM_STATS(vm, v_cow_optim); 533 GET_VM_STATS(vm, v_zfod); 534 GET_VM_STATS(vm, v_ozfod); 535 GET_VM_STATS(vm, v_swapin); 536 GET_VM_STATS(vm, v_swapout); 537 GET_VM_STATS(vm, v_swappgsin); 538 GET_VM_STATS(vm, v_swappgsout); 539 GET_VM_STATS(vm, v_vnodein); 540 GET_VM_STATS(vm, v_vnodeout); 541 GET_VM_STATS(vm, v_vnodepgsin); 542 GET_VM_STATS(vm, v_vnodepgsout); 543 GET_VM_STATS(vm, v_intrans); 544 GET_VM_STATS(vm, v_reactivated); 545 GET_VM_STATS(vm, v_pdwakeups); 546 GET_VM_STATS(vm, v_pdpages); 547 GET_VM_STATS(vm, v_pdshortfalls); 548 GET_VM_STATS(vm, v_dfree); 549 GET_VM_STATS(vm, v_pfree); 550 GET_VM_STATS(vm, v_tfree); 551 GET_VM_STATS(vm, v_page_size); 552 GET_VM_STATS(vm, v_page_count); 553 GET_VM_STATS(vm, v_free_reserved); 554 GET_VM_STATS(vm, v_free_target); 555 GET_VM_STATS(vm, v_free_min); 556 GET_VM_STATS(vm, v_free_count); 557 GET_VM_STATS(vm, v_wire_count); 558 GET_VM_STATS(vm, v_active_count); 559 GET_VM_STATS(vm, v_inactive_target); 560 GET_VM_STATS(vm, v_inactive_count); 561 GET_VM_STATS(vm, v_laundry_count); 562 GET_VM_STATS(vm, v_pageout_free_min); 563 GET_VM_STATS(vm, v_interrupt_free_min); 564 /*GET_VM_STATS(vm, v_free_severe);*/ 565 GET_VM_STATS(vm, v_forks); 566 GET_VM_STATS(vm, v_vforks); 567 GET_VM_STATS(vm, v_rforks); 568 GET_VM_STATS(vm, v_kthreads); 569 GET_VM_STATS(vm, v_forkpages); 570 GET_VM_STATS(vm, v_vforkpages); 571 GET_VM_STATS(vm, v_rforkpages); 572 GET_VM_STATS(vm, v_kthreadpages); 573#undef GET_VM_STATS 574 } 575} 576 577static void 578fill_vmtotal(struct vmtotal *vmtp) 579{ 580 size_t size; 581 582 if (kd != NULL) { 583 /* XXX fill vmtp */ 584 xo_errx(1, "not implemented"); 585 } else { 586 size = sizeof(*vmtp); 587 mysysctl("vm.vmtotal", vmtp, &size, NULL, 0); 588 if (size != sizeof(*vmtp)) 589 xo_errx(1, "vm.total size mismatch"); 590 } 591} 592 593/* Determine how many cpu columns, and what index they are in kern.cp_times */ 594static int 595getcpuinfo(u_long *maskp, int *maxidp) 596{ 597 long *times; 598 u_long mask; 599 size_t size; 600 int empty, i, j, maxcpu, maxid, ncpus; 601 602 if (kd != NULL) 603 xo_errx(1, "not implemented"); 604 mask = 0; 605 ncpus = 0; 606 size = sizeof(maxcpu); 607 mysysctl("kern.smp.maxcpus", &maxcpu, &size, NULL, 0); 608 if (size != sizeof(maxcpu)) 609 xo_errx(1, "sysctl kern.smp.maxcpus"); 610 size = sizeof(long) * maxcpu * CPUSTATES; 611 times = malloc(size); 612 if (times == NULL) 613 xo_err(1, "malloc %zd bytes", size); 614 mysysctl("kern.cp_times", times, &size, NULL, 0); 615 maxid = (size / CPUSTATES / sizeof(long)) - 1; 616 for (i = 0; i <= maxid; i++) { 617 empty = 1; 618 for (j = 0; empty && j < CPUSTATES; j++) { 619 if (times[i * CPUSTATES + j] != 0) 620 empty = 0; 621 } 622 if (!empty) { 623 mask |= (1ul << i); 624 ncpus++; 625 } 626 } 627 if (maskp) 628 *maskp = mask; 629 if (maxidp) 630 *maxidp = maxid; 631 return (ncpus); 632} 633 634 635static void 636prthuman(const char *name, uint64_t val, int size) 637{ 638 int flags; 639 char buf[10]; 640 char fmt[128]; 641 642 snprintf(fmt, sizeof(fmt), "{:%s/%%*s}", name); 643 644 if (size < 5 || size > 9) 645 xo_errx(1, "doofus"); 646 flags = HN_B | HN_NOSPACE | HN_DECIMAL; 647 humanize_number(buf, size, val, "", HN_AUTOSCALE, flags); 648 xo_attr("value", "%ju", (uintmax_t) val); 649 xo_emit(fmt, size, buf); 650} 651 652static void 653dovmstat(unsigned int interval, int reps) 654{ 655 struct clockinfo clockrate; 656 struct vmtotal total; 657 struct devinfo *tmp_dinfo; 658 u_long cpumask; 659 size_t size; 660 time_t uptime, halfuptime; 661 int ncpus, maxid, rate_adj, retval; 662 663 uptime = getuptime() / 1000000000LL; 664 halfuptime = uptime / 2; 665 rate_adj = 1; 666 ncpus = 1; 667 maxid = 0; 668 cpumask = 0; 669 670 /* 671 * If the user stops the program (control-Z) and then resumes it, 672 * print out the header again. 673 */ 674 (void)signal(SIGCONT, needhdr); 675 676 /* 677 * If our standard output is a tty, then install a SIGWINCH handler 678 * and set wresized so that our first iteration through the main 679 * vmstat loop will peek at the terminal's current rows to find out 680 * how many lines can fit in a screenful of output. 681 */ 682 if (isatty(fileno(stdout)) != 0) { 683 wresized = 1; 684 (void)signal(SIGWINCH, needresize); 685 } else { 686 wresized = 0; 687 winlines = VMSTAT_DEFAULT_LINES; 688 } 689 690 if (kd != NULL) { 691 if (namelist[X_STATHZ].n_type != 0 && 692 namelist[X_STATHZ].n_value != 0) 693 kread(X_STATHZ, &hz, sizeof(hz)); 694 if (!hz) 695 kread(X_HZ, &hz, sizeof(hz)); 696 } else { 697 size = sizeof(clockrate); 698 mysysctl("kern.clockrate", &clockrate, &size, NULL, 0); 699 if (size != sizeof(clockrate)) 700 xo_errx(1, "clockrate size mismatch"); 701 hz = clockrate.hz; 702 } 703 704 if (Pflag) { 705 ncpus = getcpuinfo(&cpumask, &maxid); 706 size_cp_times = sizeof(long) * (maxid + 1) * CPUSTATES; 707 cur_cp_times = calloc(1, size_cp_times); 708 last_cp_times = calloc(1, size_cp_times); 709 } 710 for (hdrcnt = 1;;) { 711 if (!--hdrcnt) 712 printhdr(maxid, cpumask); 713 if (kd != NULL) { 714 if (kvm_getcptime(kd, cur.cp_time) < 0) 715 xo_errx(1, "kvm_getcptime: %s", kvm_geterr(kd)); 716 } else { 717 size = sizeof(cur.cp_time); 718 mysysctl("kern.cp_time", &cur.cp_time, &size, NULL, 0); 719 if (size != sizeof(cur.cp_time)) 720 xo_errx(1, "cp_time size mismatch"); 721 } 722 if (Pflag) { 723 size = size_cp_times; 724 mysysctl("kern.cp_times", cur_cp_times, &size, NULL, 0); 725 if (size != size_cp_times) 726 xo_errx(1, "cp_times mismatch"); 727 } 728 729 tmp_dinfo = last.dinfo; 730 last.dinfo = cur.dinfo; 731 cur.dinfo = tmp_dinfo; 732 last.snap_time = cur.snap_time; 733 734 /* 735 * Here what we want to do is refresh our device stats. 736 * getdevs() returns 1 when the device list has changed. 737 * If the device list has changed, we want to go through 738 * the selection process again, in case a device that we 739 * were previously displaying has gone away. 740 */ 741 switch (devstat_getdevs(NULL, &cur)) { 742 case -1: 743 xo_errx(1, "%s", devstat_errbuf); 744 break; 745 case 1: 746 num_devices = cur.dinfo->numdevs; 747 generation = cur.dinfo->generation; 748 749 retval = devstat_selectdevs(&dev_select, &num_selected, 750 &num_selections, &select_generation, 751 generation, cur.dinfo->devices, 752 num_devices, matches, num_matches, 753 specified_devices, 754 num_devices_specified, select_mode, 755 maxshowdevs, 0); 756 switch (retval) { 757 case -1: 758 xo_errx(1, "%s", devstat_errbuf); 759 break; 760 case 1: 761 printhdr(maxid, cpumask); 762 break; 763 default: 764 break; 765 } 766 break; 767 default: 768 break; 769 } 770 771 fill_vmmeter(&sum); 772 fill_vmtotal(&total); 773 xo_open_container("processes"); 774 xo_emit("{:runnable/%1d} {:waiting/%ld} " 775 "{:swapped-out/%ld}", total.t_rq - 1, total.t_dw + 776 total.t_pw, total.t_sw); 777 xo_close_container("processes"); 778 xo_open_container("memory"); 779#define vmstat_pgtok(a) ((a) * (sum.v_page_size >> 10)) 780#define rate(x) (((x) * rate_adj + halfuptime) / uptime) /* round */ 781 if (hflag) { 782 xo_emit(""); 783 prthuman("available-memory", 784 total.t_avm * (uint64_t)sum.v_page_size, 5); 785 xo_emit(" "); 786 prthuman("free-memory", 787 total.t_free * (uint64_t)sum.v_page_size, 5); 788 xo_emit(" "); 789 } else { 790 xo_emit(" "); 791 xo_emit("{:available-memory/%7d}", 792 vmstat_pgtok(total.t_avm)); 793 xo_emit(" "); 794 xo_emit("{:free-memory/%7d}", 795 vmstat_pgtok(total.t_free)); 796 xo_emit(" "); 797 } 798 xo_emit("{:total-page-faults/%5lu} ", 799 (unsigned long)rate(sum.v_vm_faults - 800 osum.v_vm_faults)); 801 xo_close_container("memory"); 802 803 xo_open_container("paging-rates"); 804 xo_emit("{:page-reactivated/%3lu} ", 805 (unsigned long)rate(sum.v_reactivated - 806 osum.v_reactivated)); 807 xo_emit("{:paged-in/%3lu} ", 808 (unsigned long)rate(sum.v_swapin + sum.v_vnodein - 809 (osum.v_swapin + osum.v_vnodein))); 810 xo_emit("{:paged-out/%3lu} ", 811 (unsigned long)rate(sum.v_swapout + sum.v_vnodeout - 812 (osum.v_swapout + osum.v_vnodeout))); 813 xo_emit("{:freed/%5lu} ", 814 (unsigned long)rate(sum.v_tfree - osum.v_tfree)); 815 xo_emit("{:scanned/%4lu} ", 816 (unsigned long)rate(sum.v_pdpages - osum.v_pdpages)); 817 xo_close_container("paging-rates"); 818 819 devstats(); 820 xo_open_container("fault-rates"); 821 xo_emit("{:interrupts/%4lu} {:system-calls/%5lu} " 822 "{:context-switches/%5lu}", 823 (unsigned long)rate(sum.v_intr - osum.v_intr), 824 (unsigned long)rate(sum.v_syscall - osum.v_syscall), 825 (unsigned long)rate(sum.v_swtch - osum.v_swtch)); 826 xo_close_container("fault-rates"); 827 if (Pflag) 828 pcpustats(cpumask, maxid); 829 else 830 cpustats(); 831 xo_emit("\n"); 832 xo_flush(); 833 if (reps >= 0 && --reps <= 0) 834 break; 835 osum = sum; 836 uptime = interval; 837 rate_adj = 1000; 838 /* 839 * We round upward to avoid losing low-frequency events 840 * (i.e., >= 1 per interval but < 1 per millisecond). 841 */ 842 if (interval != 1) 843 halfuptime = (uptime + 1) / 2; 844 else 845 halfuptime = 0; 846 (void)usleep(interval * 1000); 847 } 848} 849 850static void 851printhdr(int maxid, u_long cpumask) 852{ 853 int i, num_shown; 854 855 num_shown = MIN(num_selected, maxshowdevs); 856 if (hflag) 857 xo_emit("{T:procs} {T:memory} {T:/page%*s}", 19, ""); 858 else 859 xo_emit("{T:procs} {T:memory} {T:/page%*s}", 19, ""); 860 if (num_shown > 1) 861 xo_emit(" {T:/disks %*s}", num_shown * 4 - 7, ""); 862 else if (num_shown == 1) 863 xo_emit(" {T:disks}"); 864 xo_emit(" {T:faults} "); 865 if (Pflag) { 866 for (i = 0; i <= maxid; i++) { 867 if (cpumask & (1ul << i)) 868 xo_emit(" {T:/cpu%d} ", i); 869 } 870 xo_emit("\n"); 871 } else 872 xo_emit(" {T:cpu}\n"); 873 if (hflag) { 874 xo_emit("{T:r} {T:b} {T:w} {T:avm} {T:fre} {T:flt} {T:re}" 875 " {T:pi} {T:po} {T:fr} {T:sr} "); 876 } else { 877 xo_emit("{T:r} {T:b} {T:w} {T:avm} {T:fre} {T:flt} " 878 "{T:re} {T:pi} {T:po} {T:fr} {T:sr} "); 879 } 880 for (i = 0; i < num_devices; i++) 881 if ((dev_select[i].selected) && 882 (dev_select[i].selected <= maxshowdevs)) 883 xo_emit("{T:/%c%c%d} ", dev_select[i].device_name[0], 884 dev_select[i].device_name[1], 885 dev_select[i].unit_number); 886 xo_emit(" {T:in} {T:sy} {T:cs}"); 887 if (Pflag) { 888 for (i = 0; i <= maxid; i++) { 889 if (cpumask & (1ul << i)) 890 xo_emit(" {T:us} {T:sy} {T:id}"); 891 } 892 xo_emit("\n"); 893 } else 894 xo_emit(" {T:us} {T:sy} {T:id}\n"); 895 if (wresized != 0) 896 doresize(); 897 hdrcnt = winlines; 898} 899 900/* 901 * Force a header to be prepended to the next output. 902 */ 903static void 904needhdr(int dummy __unused) 905{ 906 907 hdrcnt = 1; 908} 909 910/* 911 * When the terminal is resized, force an update of the maximum number of rows 912 * printed between each header repetition. Then force a new header to be 913 * prepended to the next output. 914 */ 915void 916needresize(int signo __unused) 917{ 918 919 wresized = 1; 920 hdrcnt = 1; 921} 922 923/* 924 * Update the global `winlines' count of terminal rows. 925 */ 926void 927doresize(void) 928{ 929 struct winsize w; 930 int status; 931 932 for (;;) { 933 status = ioctl(fileno(stdout), TIOCGWINSZ, &w); 934 if (status == -1 && errno == EINTR) 935 continue; 936 else if (status == -1) 937 xo_err(1, "ioctl"); 938 if (w.ws_row > 3) 939 winlines = w.ws_row - 3; 940 else 941 winlines = VMSTAT_DEFAULT_LINES; 942 break; 943 } 944 945 /* 946 * Inhibit doresize() calls until we are rescheduled by SIGWINCH. 947 */ 948 wresized = 0; 949} 950 951static long 952pct(long top, long bot) 953{ 954 long ans; 955 956 if (bot == 0) 957 return(0); 958 ans = (quad_t)top * 100 / bot; 959 return (ans); 960} 961 962#define PCT(top, bot) pct((long)(top), (long)(bot)) 963 964static void 965dosum(void) 966{ 967 struct nchstats lnchstats; 968 size_t size; 969 long nchtotal; 970 971 fill_vmmeter(&sum); 972 xo_open_container("summary-statistics"); 973 xo_emit("{:context-switches/%9u} {N:cpu context switches}\n", 974 sum.v_swtch); 975 xo_emit("{:interrupts/%9u} {N:device interrupts}\n", 976 sum.v_intr); 977 xo_emit("{:software-interrupts/%9u} {N:software interrupts}\n", 978 sum.v_soft); 979 xo_emit("{:traps/%9u} {N:traps}\n", sum.v_trap); 980 xo_emit("{:system-calls/%9u} {N:system calls}\n", 981 sum.v_syscall); 982 xo_emit("{:kernel-threads/%9u} {N:kernel threads created}\n", 983 sum.v_kthreads); 984 xo_emit("{:forks/%9u} {N: fork() calls}\n", sum.v_forks); 985 xo_emit("{:vforks/%9u} {N:vfork() calls}\n", 986 sum.v_vforks); 987 xo_emit("{:rforks/%9u} {N:rfork() calls}\n", 988 sum.v_rforks); 989 xo_emit("{:swap-ins/%9u} {N:swap pager pageins}\n", 990 sum.v_swapin); 991 xo_emit("{:swap-in-pages/%9u} {N:swap pager pages paged in}\n", 992 sum.v_swappgsin); 993 xo_emit("{:swap-outs/%9u} {N:swap pager pageouts}\n", 994 sum.v_swapout); 995 xo_emit("{:swap-out-pages/%9u} {N:swap pager pages paged out}\n", 996 sum.v_swappgsout); 997 xo_emit("{:vnode-page-ins/%9u} {N:vnode pager pageins}\n", 998 sum.v_vnodein); 999 xo_emit("{:vnode-page-in-pages/%9u} {N:vnode pager pages paged in}\n", 1000 sum.v_vnodepgsin); 1001 xo_emit("{:vnode-page-outs/%9u} {N:vnode pager pageouts}\n", 1002 sum.v_vnodeout); 1003 xo_emit("{:vnode-page-outs/%9u} {N:vnode pager pages paged out}\n", 1004 sum.v_vnodepgsout); 1005 xo_emit("{:page-daemon-wakeups/%9u} {N:page daemon wakeups}\n", 1006 sum.v_pdwakeups); 1007 xo_emit("{:page-daemon-pages/%9u} {N:pages examined by the page " 1008 "daemon}\n", sum.v_pdpages); 1009 xo_emit("{:page-reclamation-shortfalls/%9u} {N:clean page reclamation " 1010 "shortfalls}\n", sum.v_pdshortfalls); 1011 xo_emit("{:reactivated/%9u} {N:pages reactivated by the page daemon}\n", 1012 sum.v_reactivated); 1013 xo_emit("{:copy-on-write-faults/%9u} {N:copy-on-write faults}\n", 1014 sum.v_cow_faults); 1015 xo_emit("{:copy-on-write-optimized-faults/%9u} {N:copy-on-write " 1016 "optimized faults}\n", sum.v_cow_optim); 1017 xo_emit("{:zero-fill-pages/%9u} {N:zero fill pages zeroed}\n", 1018 sum.v_zfod); 1019 xo_emit("{:zero-fill-prezeroed/%9u} {N:zero fill pages prezeroed}\n", 1020 sum.v_ozfod); 1021 xo_emit("{:intransit-blocking/%9u} {N:intransit blocking page faults}\n", 1022 sum.v_intrans); 1023 xo_emit("{:total-faults/%9u} {N:total VM faults taken}\n", 1024 sum.v_vm_faults); 1025 xo_emit("{:faults-requiring-io/%9u} {N:page faults requiring I\\/O}\n", 1026 sum.v_io_faults); 1027 xo_emit("{:faults-from-thread-creation/%9u} {N:pages affected by " 1028 "kernel thread creation}\n", sum.v_kthreadpages); 1029 xo_emit("{:faults-from-fork/%9u} {N:pages affected by fork}()\n", 1030 sum.v_forkpages); 1031 xo_emit("{:faults-from-vfork/%9u} {N:pages affected by vfork}()\n", 1032 sum.v_vforkpages); 1033 xo_emit("{:pages-rfork/%9u} {N:pages affected by rfork}()\n", 1034 sum.v_rforkpages); 1035 xo_emit("{:pages-freed/%9u} {N:pages freed}\n", 1036 sum.v_tfree); 1037 xo_emit("{:pages-freed-by-daemon/%9u} {N:pages freed by daemon}\n", 1038 sum.v_dfree); 1039 xo_emit("{:pages-freed-on-exit/%9u} {N:pages freed by exiting processes}\n", 1040 sum.v_pfree); 1041 xo_emit("{:active-pages/%9u} {N:pages active}\n", 1042 sum.v_active_count); 1043 xo_emit("{:inactive-pages/%9u} {N:pages inactive}\n", 1044 sum.v_inactive_count); 1045 xo_emit("{:laundry-pages/%9u} {N:pages in the laundry queue}\n", 1046 sum.v_laundry_count); 1047 xo_emit("{:wired-pages/%9u} {N:pages wired down}\n", 1048 sum.v_wire_count); 1049 xo_emit("{:free-pages/%9u} {N:pages free}\n", 1050 sum.v_free_count); 1051 xo_emit("{:bytes-per-page/%9u} {N:bytes per page}\n", sum.v_page_size); 1052 if (kd != NULL) { 1053 kread(X_NCHSTATS, &lnchstats, sizeof(lnchstats)); 1054 } else { 1055 size = sizeof(lnchstats); 1056 mysysctl("vfs.cache.nchstats", &lnchstats, &size, NULL, 0); 1057 if (size != sizeof(lnchstats)) 1058 xo_errx(1, "vfs.cache.nchstats size mismatch"); 1059 } 1060 nchtotal = lnchstats.ncs_goodhits + lnchstats.ncs_neghits + 1061 lnchstats.ncs_badhits + lnchstats.ncs_falsehits + 1062 lnchstats.ncs_miss + lnchstats.ncs_long; 1063 xo_emit("{:total-name-lookups/%9ld} {N:total name lookups}\n", 1064 nchtotal); 1065 xo_emit("{P:/%9s} {N:cache hits} " 1066 "({:positive-cache-hits/%ld}% pos + " 1067 "{:negative-cache-hits/%ld}% {N:neg}) " 1068 "system {:cache-hit-percent/%ld}% per-directory\n", 1069 "", PCT(lnchstats.ncs_goodhits, nchtotal), 1070 PCT(lnchstats.ncs_neghits, nchtotal), 1071 PCT(lnchstats.ncs_pass2, nchtotal)); 1072 xo_emit("{P:/%9s} {L:deletions} {:deletions/%ld}%, " 1073 "{L:falsehits} {:false-hits/%ld}%, " 1074 "{L:toolong} {:too-long/%ld}%\n", "", 1075 PCT(lnchstats.ncs_badhits, nchtotal), 1076 PCT(lnchstats.ncs_falsehits, nchtotal), 1077 PCT(lnchstats.ncs_long, nchtotal)); 1078 xo_close_container("summary-statistics"); 1079} 1080 1081static void 1082doforkst(void) 1083{ 1084 1085 fill_vmmeter(&sum); 1086 xo_open_container("fork-statistics"); 1087 xo_emit("{:fork/%u} {N:forks}, {:fork-pages/%u} {N:pages}, " 1088 "{L:average} {:fork-average/%.2f}\n", 1089 sum.v_forks, sum.v_forkpages, 1090 sum.v_forks == 0 ? 0.0 : 1091 (double)sum.v_forkpages / sum.v_forks); 1092 xo_emit("{:vfork/%u} {N:vforks}, {:vfork-pages/%u} {N:pages}, " 1093 "{L:average} {:vfork-average/%.2f}\n", 1094 sum.v_vforks, sum.v_vforkpages, 1095 sum.v_vforks == 0 ? 0.0 : 1096 (double)sum.v_vforkpages / sum.v_vforks); 1097 xo_emit("{:rfork/%u} {N:rforks}, {:rfork-pages/%u} {N:pages}, " 1098 "{L:average} {:rfork-average/%.2f}\n", 1099 sum.v_rforks, sum.v_rforkpages, 1100 sum.v_rforks == 0 ? 0.0 : 1101 (double)sum.v_rforkpages / sum.v_rforks); 1102 xo_close_container("fork-statistics"); 1103} 1104 1105static void 1106devstats(void) 1107{ 1108 long double busy_seconds, transfers_per_second; 1109 long tmp; 1110 int di, dn, state; 1111 1112 for (state = 0; state < CPUSTATES; ++state) { 1113 tmp = cur.cp_time[state]; 1114 cur.cp_time[state] -= last.cp_time[state]; 1115 last.cp_time[state] = tmp; 1116 } 1117 1118 busy_seconds = cur.snap_time - last.snap_time; 1119 1120 xo_open_list("device"); 1121 for (dn = 0; dn < num_devices; dn++) { 1122 if (dev_select[dn].selected == 0 || 1123 dev_select[dn].selected > maxshowdevs) 1124 continue; 1125 1126 di = dev_select[dn].position; 1127 1128 if (devstat_compute_statistics(&cur.dinfo->devices[di], 1129 &last.dinfo->devices[di], busy_seconds, 1130 DSM_TRANSFERS_PER_SECOND, &transfers_per_second, 1131 DSM_NONE) != 0) 1132 xo_errx(1, "%s", devstat_errbuf); 1133 1134 xo_open_instance("device"); 1135 xo_emit("{ekq:name/%c%c%d}{:transfers/%3.0Lf} ", 1136 dev_select[dn].device_name[0], 1137 dev_select[dn].device_name[1], 1138 dev_select[dn].unit_number, 1139 transfers_per_second); 1140 xo_close_instance("device"); 1141 } 1142 xo_close_list("device"); 1143} 1144 1145static void 1146percent(const char *name, double pctv, int *over) 1147{ 1148 int l; 1149 char buf[10]; 1150 char fmt[128]; 1151 1152 snprintf(fmt, sizeof(fmt), " {:%s/%%*s}", name); 1153 l = snprintf(buf, sizeof(buf), "%.0f", pctv); 1154 if (l == 1 && *over) { 1155 xo_emit(fmt, 1, buf); 1156 (*over)--; 1157 } else 1158 xo_emit(fmt, 2, buf); 1159 if (l > 2) 1160 (*over)++; 1161} 1162 1163static void 1164cpustats(void) 1165{ 1166 double lpct, total; 1167 int state, over; 1168 1169 total = 0; 1170 for (state = 0; state < CPUSTATES; ++state) 1171 total += cur.cp_time[state]; 1172 if (total) 1173 lpct = 100.0 / total; 1174 else 1175 lpct = 0.0; 1176 over = 0; 1177 xo_open_container("cpu-statistics"); 1178 percent("user", (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * lpct, 1179 &over); 1180 percent("system", (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * lpct, 1181 &over); 1182 percent("idle", cur.cp_time[CP_IDLE] * lpct, &over); 1183 xo_close_container("cpu-statistics"); 1184} 1185 1186static void 1187pcpustats(u_long cpumask, int maxid) 1188{ 1189 double lpct, total; 1190 long tmp; 1191 int i, over, state; 1192 1193 /* devstats does this for cp_time */ 1194 for (i = 0; i <= maxid; i++) { 1195 if ((cpumask & (1ul << i)) == 0) 1196 continue; 1197 for (state = 0; state < CPUSTATES; ++state) { 1198 tmp = cur_cp_times[i * CPUSTATES + state]; 1199 cur_cp_times[i * CPUSTATES + state] -= last_cp_times[i * 1200 CPUSTATES + state]; 1201 last_cp_times[i * CPUSTATES + state] = tmp; 1202 } 1203 } 1204 1205 over = 0; 1206 xo_open_list("cpu"); 1207 for (i = 0; i <= maxid; i++) { 1208 if ((cpumask & (1ul << i)) == 0) 1209 continue; 1210 xo_open_instance("cpu"); 1211 xo_emit("{ke:name/%d}", i); 1212 total = 0; 1213 for (state = 0; state < CPUSTATES; ++state) 1214 total += cur_cp_times[i * CPUSTATES + state]; 1215 if (total) 1216 lpct = 100.0 / total; 1217 else 1218 lpct = 0.0; 1219 percent("user", (cur_cp_times[i * CPUSTATES + CP_USER] + 1220 cur_cp_times[i * CPUSTATES + CP_NICE]) * lpct, &over); 1221 percent("system", (cur_cp_times[i * CPUSTATES + CP_SYS] + 1222 cur_cp_times[i * CPUSTATES + CP_INTR]) * lpct, &over); 1223 percent("idle", cur_cp_times[i * CPUSTATES + CP_IDLE] * lpct, 1224 &over); 1225 xo_close_instance("cpu"); 1226 } 1227 xo_close_list("cpu"); 1228} 1229 1230static unsigned int 1231read_intrcnts(unsigned long **intrcnts) 1232{ 1233 size_t intrcntlen; 1234 uintptr_t kaddr; 1235 1236 if (kd != NULL) { 1237 kread(X_SINTRCNT, &intrcntlen, sizeof(intrcntlen)); 1238 if ((*intrcnts = malloc(intrcntlen)) == NULL) 1239 err(1, "malloc()"); 1240 if (namelist[X_NINTRCNT].n_type == 0) 1241 kread(X_INTRCNT, *intrcnts, intrcntlen); 1242 else { 1243 kread(X_INTRCNT, &kaddr, sizeof(kaddr)); 1244 kreadptr(kaddr, *intrcnts, intrcntlen); 1245 } 1246 } else { 1247 for (*intrcnts = NULL, intrcntlen = 1024; ; intrcntlen *= 2) { 1248 *intrcnts = reallocf(*intrcnts, intrcntlen); 1249 if (*intrcnts == NULL) 1250 err(1, "reallocf()"); 1251 if (mysysctl("hw.intrcnt", 1252 *intrcnts, &intrcntlen, NULL, 0) == 0) 1253 break; 1254 } 1255 } 1256 1257 return (intrcntlen / sizeof(unsigned long)); 1258} 1259 1260static void 1261print_intrcnts(unsigned long *intrcnts, unsigned long *old_intrcnts, 1262 char *intrnames, unsigned int nintr, size_t istrnamlen, long long period_ms) 1263{ 1264 unsigned long *intrcnt, *old_intrcnt; 1265 char *intrname; 1266 uint64_t inttotal, old_inttotal, total_count, total_rate; 1267 unsigned long count, rate; 1268 unsigned int i; 1269 1270 inttotal = 0; 1271 old_inttotal = 0; 1272 intrname = intrnames; 1273 xo_open_list("interrupt"); 1274 for (i = 0, intrcnt=intrcnts, old_intrcnt=old_intrcnts; i < nintr; i++) { 1275 if (intrname[0] != '\0' && (*intrcnt != 0 || aflag)) { 1276 count = *intrcnt - *old_intrcnt; 1277 rate = (count * 1000 + period_ms / 2) / period_ms; 1278 xo_open_instance("interrupt"); 1279 xo_emit("{d:name/%-*s}{ket:name/%s} " 1280 "{:total/%20lu} {:rate/%10lu}\n", 1281 (int)istrnamlen, intrname, intrname, count, rate); 1282 xo_close_instance("interrupt"); 1283 } 1284 intrname += strlen(intrname) + 1; 1285 inttotal += *intrcnt++; 1286 old_inttotal += *old_intrcnt++; 1287 } 1288 total_count = inttotal - old_inttotal; 1289 total_rate = (total_count * 1000 + period_ms / 2) / period_ms; 1290 xo_close_list("interrupt"); 1291 xo_emit("{L:/%-*s} {:total-interrupts/%20ju} " 1292 "{:total-rate/%10ju}\n", (int)istrnamlen, 1293 "Total", (uintmax_t)total_count, (uintmax_t)total_rate); 1294} 1295 1296static void 1297dointr(unsigned int interval, int reps) 1298{ 1299 unsigned long *intrcnts, *old_intrcnts; 1300 char *intrname, *intrnames; 1301 long long period_ms, old_uptime, uptime; 1302 size_t clen, inamlen, istrnamlen; 1303 uintptr_t kaddr; 1304 unsigned int nintr; 1305 1306 old_intrcnts = NULL; 1307 uptime = getuptime(); 1308 1309 /* Get the names of each interrupt source */ 1310 if (kd != NULL) { 1311 kread(X_SINTRNAMES, &inamlen, sizeof(inamlen)); 1312 if ((intrnames = malloc(inamlen)) == NULL) 1313 xo_err(1, "malloc()"); 1314 if (namelist[X_NINTRCNT].n_type == 0) 1315 kread(X_INTRNAMES, intrnames, inamlen); 1316 else { 1317 kread(X_INTRNAMES, &kaddr, sizeof(kaddr)); 1318 kreadptr(kaddr, intrnames, inamlen); 1319 } 1320 } else { 1321 for (intrnames = NULL, inamlen = 1024; ; inamlen *= 2) { 1322 if ((intrnames = reallocf(intrnames, inamlen)) == NULL) 1323 xo_err(1, "reallocf()"); 1324 if (mysysctl("hw.intrnames", 1325 intrnames, &inamlen, NULL, 0) == 0) 1326 break; 1327 } 1328 } 1329 1330 /* Determine the length of the longest interrupt name */ 1331 intrname = intrnames; 1332 istrnamlen = strlen("interrupt"); 1333 while(*intrname != '\0') { 1334 clen = strlen(intrname); 1335 if (clen > istrnamlen) 1336 istrnamlen = clen; 1337 intrname += strlen(intrname) + 1; 1338 } 1339 xo_emit("{T:/%-*s} {T:/%20s} {T:/%10s}\n", 1340 (int)istrnamlen, "interrupt", "total", "rate"); 1341 1342 /* 1343 * Loop reps times printing differential interrupt counts. If reps is 1344 * zero, then run just once, printing total counts 1345 */ 1346 xo_open_container("interrupt-statistics"); 1347 1348 period_ms = uptime / 1000000; 1349 while(1) { 1350 nintr = read_intrcnts(&intrcnts); 1351 /* 1352 * Initialize old_intrcnts to 0 for the first pass, so 1353 * print_intrcnts will print total interrupts since boot 1354 */ 1355 if (old_intrcnts == NULL) { 1356 old_intrcnts = calloc(nintr, sizeof(unsigned long)); 1357 if (old_intrcnts == NULL) 1358 xo_err(1, "calloc()"); 1359 } 1360 1361 print_intrcnts(intrcnts, old_intrcnts, intrnames, nintr, 1362 istrnamlen, period_ms); 1363 xo_flush(); 1364 1365 free(old_intrcnts); 1366 old_intrcnts = intrcnts; 1367 if (reps >= 0 && --reps <= 0) 1368 break; 1369 usleep(interval * 1000); 1370 old_uptime = uptime; 1371 uptime = getuptime(); 1372 period_ms = (uptime - old_uptime) / 1000000; 1373 } 1374 1375 xo_close_container("interrupt-statistics"); 1376} 1377 1378static void 1379domemstat_malloc(void) 1380{ 1381 struct memory_type_list *mtlp; 1382 struct memory_type *mtp; 1383 int error, first, i; 1384 1385 mtlp = memstat_mtl_alloc(); 1386 if (mtlp == NULL) { 1387 xo_warn("memstat_mtl_alloc"); 1388 return; 1389 } 1390 if (kd == NULL) { 1391 if (memstat_sysctl_malloc(mtlp, 0) < 0) { 1392 xo_warnx("memstat_sysctl_malloc: %s", 1393 memstat_strerror(memstat_mtl_geterror(mtlp))); 1394 return; 1395 } 1396 } else { 1397 if (memstat_kvm_malloc(mtlp, kd) < 0) { 1398 error = memstat_mtl_geterror(mtlp); 1399 if (error == MEMSTAT_ERROR_KVM) 1400 xo_warnx("memstat_kvm_malloc: %s", 1401 kvm_geterr(kd)); 1402 else 1403 xo_warnx("memstat_kvm_malloc: %s", 1404 memstat_strerror(error)); 1405 } 1406 } 1407 xo_open_container("malloc-statistics"); 1408 xo_emit("{T:/%13s} {T:/%5s} {T:/%6s} {T:/%7s} {T:/%8s} {T:Size(s)}\n", 1409 "Type", "InUse", "MemUse", "HighUse", "Requests"); 1410 xo_open_list("memory"); 1411 for (mtp = memstat_mtl_first(mtlp); mtp != NULL; 1412 mtp = memstat_mtl_next(mtp)) { 1413 if (memstat_get_numallocs(mtp) == 0 && 1414 memstat_get_count(mtp) == 0) 1415 continue; 1416 xo_open_instance("memory"); 1417 xo_emit("{k:type/%13s/%s} {:in-use/%5ju} " 1418 "{:memory-use/%5ju}{U:K} {:high-use/%7s} " 1419 "{:requests/%8ju} ", 1420 memstat_get_name(mtp), (uintmax_t)memstat_get_count(mtp), 1421 ((uintmax_t)memstat_get_bytes(mtp) + 1023) / 1024, "-", 1422 (uintmax_t)memstat_get_numallocs(mtp)); 1423 first = 1; 1424 xo_open_list("size"); 1425 for (i = 0; i < 32; i++) { 1426 if (memstat_get_sizemask(mtp) & (1 << i)) { 1427 if (!first) 1428 xo_emit(","); 1429 xo_emit("{l:size/%d}", 1 << (i + 4)); 1430 first = 0; 1431 } 1432 } 1433 xo_close_list("size"); 1434 xo_close_instance("memory"); 1435 xo_emit("\n"); 1436 } 1437 xo_close_list("memory"); 1438 xo_close_container("malloc-statistics"); 1439 memstat_mtl_free(mtlp); 1440} 1441 1442static void 1443domemstat_zone(void) 1444{ 1445 struct memory_type_list *mtlp; 1446 struct memory_type *mtp; 1447 int error; 1448 char name[MEMTYPE_MAXNAME + 1]; 1449 1450 mtlp = memstat_mtl_alloc(); 1451 if (mtlp == NULL) { 1452 xo_warn("memstat_mtl_alloc"); 1453 return; 1454 } 1455 if (kd == NULL) { 1456 if (memstat_sysctl_uma(mtlp, 0) < 0) { 1457 xo_warnx("memstat_sysctl_uma: %s", 1458 memstat_strerror(memstat_mtl_geterror(mtlp))); 1459 return; 1460 } 1461 } else { 1462 if (memstat_kvm_uma(mtlp, kd) < 0) { 1463 error = memstat_mtl_geterror(mtlp); 1464 if (error == MEMSTAT_ERROR_KVM) 1465 xo_warnx("memstat_kvm_uma: %s", 1466 kvm_geterr(kd)); 1467 else 1468 xo_warnx("memstat_kvm_uma: %s", 1469 memstat_strerror(error)); 1470 } 1471 } 1472 xo_open_container("memory-zone-statistics"); 1473 xo_emit("{T:/%-20s} {T:/%6s} {T:/%6s} {T:/%8s} {T:/%8s} {T:/%8s} " 1474 "{T:/%4s} {T:/%4s}\n\n", "ITEM", "SIZE", 1475 "LIMIT", "USED", "FREE", "REQ", "FAIL", "SLEEP"); 1476 xo_open_list("zone"); 1477 for (mtp = memstat_mtl_first(mtlp); mtp != NULL; 1478 mtp = memstat_mtl_next(mtp)) { 1479 strlcpy(name, memstat_get_name(mtp), MEMTYPE_MAXNAME); 1480 strcat(name, ":"); 1481 xo_open_instance("zone"); 1482 xo_emit("{d:name/%-20s}{ke:name/%s} {:size/%6ju}, " 1483 "{:limit/%6ju},{:used/%8ju}," 1484 "{:free/%8ju},{:requests/%8ju}," 1485 "{:fail/%4ju},{:sleep/%4ju}\n", name, 1486 memstat_get_name(mtp), 1487 (uintmax_t)memstat_get_size(mtp), 1488 (uintmax_t)memstat_get_countlimit(mtp), 1489 (uintmax_t)memstat_get_count(mtp), 1490 (uintmax_t)memstat_get_free(mtp), 1491 (uintmax_t)memstat_get_numallocs(mtp), 1492 (uintmax_t)memstat_get_failures(mtp), 1493 (uintmax_t)memstat_get_sleeps(mtp)); 1494 xo_close_instance("zone"); 1495 } 1496 memstat_mtl_free(mtlp); 1497 xo_close_list("zone"); 1498 xo_close_container("memory-zone-statistics"); 1499 xo_emit("\n"); 1500} 1501 1502static void 1503display_object(struct kinfo_vmobject *kvo) 1504{ 1505 const char *str; 1506 1507 xo_open_instance("object"); 1508 xo_emit("{:resident/%5jd} ", (uintmax_t)kvo->kvo_resident); 1509 xo_emit("{:active/%5jd} ", (uintmax_t)kvo->kvo_active); 1510 xo_emit("{:inactive/%5jd} ", (uintmax_t)kvo->kvo_inactive); 1511 xo_emit("{:refcount/%3d} ", kvo->kvo_ref_count); 1512 xo_emit("{:shadowcount/%3d} ", kvo->kvo_shadow_count); 1513 switch (kvo->kvo_memattr) { 1514#ifdef VM_MEMATTR_UNCACHEABLE 1515 case VM_MEMATTR_UNCACHEABLE: 1516 str = "UC"; 1517 break; 1518#endif 1519#ifdef VM_MEMATTR_WRITE_COMBINING 1520 case VM_MEMATTR_WRITE_COMBINING: 1521 str = "WC"; 1522 break; 1523#endif 1524#ifdef VM_MEMATTR_WRITE_THROUGH 1525 case VM_MEMATTR_WRITE_THROUGH: 1526 str = "WT"; 1527 break; 1528#endif 1529#ifdef VM_MEMATTR_WRITE_PROTECTED 1530 case VM_MEMATTR_WRITE_PROTECTED: 1531 str = "WP"; 1532 break; 1533#endif 1534#ifdef VM_MEMATTR_WRITE_BACK 1535 case VM_MEMATTR_WRITE_BACK: 1536 str = "WB"; 1537 break; 1538#endif 1539#ifdef VM_MEMATTR_WEAK_UNCACHEABLE 1540 case VM_MEMATTR_WEAK_UNCACHEABLE: 1541 str = "UC-"; 1542 break; 1543#endif 1544#ifdef VM_MEMATTR_WB_WA 1545 case VM_MEMATTR_WB_WA: 1546 str = "WB"; 1547 break; 1548#endif 1549#ifdef VM_MEMATTR_NOCACHE 1550 case VM_MEMATTR_NOCACHE: 1551 str = "NC"; 1552 break; 1553#endif 1554#ifdef VM_MEMATTR_DEVICE 1555 case VM_MEMATTR_DEVICE: 1556 str = "DEV"; 1557 break; 1558#endif 1559#ifdef VM_MEMATTR_CACHEABLE 1560 case VM_MEMATTR_CACHEABLE: 1561 str = "C"; 1562 break; 1563#endif 1564#ifdef VM_MEMATTR_PREFETCHABLE 1565 case VM_MEMATTR_PREFETCHABLE: 1566 str = "PRE"; 1567 break; 1568#endif 1569 default: 1570 str = "??"; 1571 break; 1572 } 1573 xo_emit("{:attribute/%-3s} ", str); 1574 switch (kvo->kvo_type) { 1575 case KVME_TYPE_NONE: 1576 str = "--"; 1577 break; 1578 case KVME_TYPE_DEFAULT: 1579 str = "df"; 1580 break; 1581 case KVME_TYPE_VNODE: 1582 str = "vn"; 1583 break; 1584 case KVME_TYPE_SWAP: 1585 str = "sw"; 1586 break; 1587 case KVME_TYPE_DEVICE: 1588 str = "dv"; 1589 break; 1590 case KVME_TYPE_PHYS: 1591 str = "ph"; 1592 break; 1593 case KVME_TYPE_DEAD: 1594 str = "dd"; 1595 break; 1596 case KVME_TYPE_SG: 1597 str = "sg"; 1598 break; 1599 case KVME_TYPE_UNKNOWN: 1600 default: 1601 str = "??"; 1602 break; 1603 } 1604 xo_emit("{:type/%-2s} ", str); 1605 xo_emit("{:path/%-s}\n", kvo->kvo_path); 1606 xo_close_instance("object"); 1607} 1608 1609static void 1610doobjstat(void) 1611{ 1612 struct kinfo_vmobject *kvo; 1613 int cnt, i; 1614 1615 kvo = kinfo_getvmobject(&cnt); 1616 if (kvo == NULL) { 1617 xo_warn("Failed to fetch VM object list"); 1618 return; 1619 } 1620 xo_emit("{T:RES/%5s} {T:ACT/%5s} {T:INACT/%5s} {T:REF/%3s} {T:SHD/%3s} " 1621 "{T:CM/%3s} {T:TP/%2s} {T:PATH/%s}\n"); 1622 xo_open_list("object"); 1623 for (i = 0; i < cnt; i++) 1624 display_object(&kvo[i]); 1625 free(kvo); 1626 xo_close_list("object"); 1627} 1628 1629/* 1630 * kread reads something from the kernel, given its nlist index. 1631 */ 1632static void 1633kreado(int nlx, void *addr, size_t size, size_t offset) 1634{ 1635 const char *sym; 1636 1637 if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) { 1638 sym = namelist[nlx].n_name; 1639 if (*sym == '_') 1640 ++sym; 1641 xo_errx(1, "symbol %s not defined", sym); 1642 } 1643 if ((size_t)kvm_read(kd, namelist[nlx].n_value + offset, addr, 1644 size) != size) { 1645 sym = namelist[nlx].n_name; 1646 if (*sym == '_') 1647 ++sym; 1648 xo_errx(1, "%s: %s", sym, kvm_geterr(kd)); 1649 } 1650} 1651 1652static void 1653kread(int nlx, void *addr, size_t size) 1654{ 1655 1656 kreado(nlx, addr, size, 0); 1657} 1658 1659static void 1660kreadptr(uintptr_t addr, void *buf, size_t size) 1661{ 1662 1663 if ((size_t)kvm_read(kd, addr, buf, size) != size) 1664 xo_errx(1, "%s", kvm_geterr(kd)); 1665} 1666 1667static void 1668usage(void) 1669{ 1670 xo_error("%s%s", 1671 "usage: vmstat [-afHhimoPsz] [-M core [-N system]] [-c count] [-n devs]\n", 1672 " [-p type,if,pass] [-w wait] [disks] [wait [count]]\n"); 1673 xo_finish(); 1674 exit(1); 1675} 1676