vmstat.c revision 1.215
1/* $NetBSD: vmstat.c,v 1.215 2017/01/05 03:42:27 pgoyette Exp $ */ 2 3/*- 4 * Copyright (c) 1998, 2000, 2001, 2007 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation by: 8 * - Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * - Simon Burge and Luke Mewburn of Wasabi Systems, Inc. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34/* 35 * Copyright (c) 1980, 1986, 1991, 1993 36 * The Regents of the University of California. All rights reserved. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 1. Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * 2. Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in the 45 * documentation and/or other materials provided with the distribution. 46 * 3. Neither the name of the University nor the names of its contributors 47 * may be used to endorse or promote products derived from this software 48 * without specific prior written permission. 49 * 50 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 51 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 53 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 54 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 55 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 56 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 57 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 58 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 59 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 60 * SUCH DAMAGE. 61 */ 62 63#include <sys/cdefs.h> 64#ifndef lint 65__COPYRIGHT("@(#) Copyright (c) 1980, 1986, 1991, 1993\ 66 The Regents of the University of California. All rights reserved."); 67#endif /* not lint */ 68 69#ifndef lint 70#if 0 71static char sccsid[] = "@(#)vmstat.c 8.2 (Berkeley) 3/1/95"; 72#else 73__RCSID("$NetBSD: vmstat.c,v 1.215 2017/01/05 03:42:27 pgoyette Exp $"); 74#endif 75#endif /* not lint */ 76 77#define __POOL_EXPOSE 78 79#include <sys/param.h> 80#include <sys/types.h> 81#include <sys/mount.h> 82#include <sys/uio.h> 83 84#include <sys/buf.h> 85#include <sys/evcnt.h> 86#include <sys/ioctl.h> 87#include <sys/malloc.h> 88#include <sys/mallocvar.h> 89#include <sys/namei.h> 90#include <sys/pool.h> 91#include <sys/proc.h> 92#include <sys/sched.h> 93#include <sys/socket.h> 94#include <sys/sysctl.h> 95#include <sys/time.h> 96#include <sys/queue.h> 97#include <sys/kernhist.h> 98 99#include <uvm/uvm_extern.h> 100#include <uvm/uvm_stat.h> 101 102#include <net/if.h> 103#include <netinet/in.h> 104#include <netinet/in_var.h> 105 106#include <ufs/ufs/inode.h> 107 108#include <nfs/rpcv2.h> 109#include <nfs/nfsproto.h> 110#include <nfs/nfsnode.h> 111 112#include <ctype.h> 113#include <err.h> 114#include <errno.h> 115#include <fcntl.h> 116#include <kvm.h> 117#include <limits.h> 118#include <nlist.h> 119#undef n_hash 120#include <paths.h> 121#include <signal.h> 122#include <stdio.h> 123#include <stddef.h> 124#include <stdlib.h> 125#include <string.h> 126#include <time.h> 127#include <unistd.h> 128#include <util.h> 129 130#include "drvstats.h" 131 132/* 133 * All this mess will go away once everything is converted. 134 */ 135#ifdef __HAVE_CPU_DATA_FIRST 136 137# include <sys/cpu_data.h> 138struct cpu_info { 139 struct cpu_data ci_data; 140}; 141#else 142# include <sys/cpu.h> 143#endif 144 145/* 146 * General namelist 147 */ 148struct nlist namelist[] = 149{ 150#define X_BOOTTIME 0 151 { .n_name = "_boottime" }, 152#define X_HZ 1 153 { .n_name = "_hz" }, 154#define X_STATHZ 2 155 { .n_name = "_stathz" }, 156#define X_NCHSTATS 3 157 { .n_name = "_nchstats" }, 158#define X_ALLEVENTS 4 159 { .n_name = "_allevents" }, 160#define X_POOLHEAD 5 161 { .n_name = "_pool_head" }, 162#define X_UVMEXP 6 163 { .n_name = "_uvmexp" }, 164#define X_TIME_SECOND 7 165 { .n_name = "_time_second" }, 166#define X_TIME 8 167 { .n_name = "_time" }, 168#define X_CPU_INFOS 9 169 { .n_name = "_cpu_infos" }, 170#define X_NL_SIZE 10 171 { .n_name = NULL }, 172}; 173 174/* 175 * Namelist for pre-evcnt interrupt counters. 176 */ 177struct nlist intrnl[] = 178{ 179#define X_INTRNAMES 0 180 { .n_name = "_intrnames" }, 181#define X_EINTRNAMES 1 182 { .n_name = "_eintrnames" }, 183#define X_INTRCNT 2 184 { .n_name = "_intrcnt" }, 185#define X_EINTRCNT 3 186 { .n_name = "_eintrcnt" }, 187#define X_INTRNL_SIZE 4 188 { .n_name = NULL }, 189}; 190 191 192/* 193 * Namelist for hash statistics 194 */ 195struct nlist hashnl[] = 196{ 197#define X_NFSNODE 0 198 { .n_name = "_nfsnodehash" }, 199#define X_NFSNODETBL 1 200 { .n_name = "_nfsnodehashtbl" }, 201#define X_IHASH 2 202 { .n_name = "_ihash" }, 203#define X_IHASHTBL 3 204 { .n_name = "_ihashtbl" }, 205#define X_BUFHASH 4 206 { .n_name = "_bufhash" }, 207#define X_BUFHASHTBL 5 208 { .n_name = "_bufhashtbl" }, 209#define X_UIHASH 6 210 { .n_name = "_uihash" }, 211#define X_UIHASHTBL 7 212 { .n_name = "_uihashtbl" }, 213#define X_IFADDRHASH 8 214 { .n_name = "_in_ifaddrhash" }, 215#define X_IFADDRHASHTBL 9 216 { .n_name = "_in_ifaddrhashtbl" }, 217#define X_NCHASH 10 218 { .n_name = "_nchash" }, 219#define X_NCHASHTBL 11 220 { .n_name = "_nchashtbl" }, 221#define X_NCVHASH 12 222 { .n_name = "_ncvhash" }, 223#define X_NCVHASHTBL 13 224 { .n_name = "_ncvhashtbl" }, 225#define X_HASHNL_SIZE 14 /* must be last */ 226 { .n_name = NULL }, 227}; 228 229/* 230 * Namelist for kernel histories 231 */ 232struct nlist histnl[] = 233{ 234 { .n_name = "_kern_histories" }, 235#define X_KERN_HISTORIES 0 236 { .n_name = NULL }, 237}; 238 239 240#define KILO 1024 241 242struct cpu_counter { 243 uint64_t nintr; 244 uint64_t nsyscall; 245 uint64_t nswtch; 246 uint64_t nfault; 247 uint64_t ntrap; 248 uint64_t nsoft; 249} cpucounter, ocpucounter; 250 251struct uvmexp_sysctl uvmexp, ouvmexp; 252int ndrives; 253 254int winlines = 20; 255 256kvm_t *kd; 257 258 259#define FORKSTAT 0x001 260#define INTRSTAT 0x002 261#define MEMSTAT 0x004 262#define SUMSTAT 0x008 263#define EVCNTSTAT 0x010 264#define VMSTAT 0x020 265#define HISTLIST 0x040 266#define HISTDUMP 0x080 267#define HASHSTAT 0x100 268#define HASHLIST 0x200 269#define VMTOTAL 0x400 270#define POOLCACHESTAT 0x800 271 272/* 273 * Print single word. `ovflow' is number of characters didn't fit 274 * on the last word. `fmt' is a format string to print this word. 275 * It must contain asterisk for field width. `width' is a width 276 * occupied by this word. `fixed' is a number of constant chars in 277 * `fmt'. `val' is a value to be printed using format string `fmt'. 278 */ 279#define PRWORD(ovflw, fmt, width, fixed, val) do { \ 280 (ovflw) += printf((fmt), \ 281 (width) - (fixed) - (ovflw) > 0 ? \ 282 (width) - (fixed) - (ovflw) : 0, \ 283 (val)) - (width); \ 284 if ((ovflw) < 0) \ 285 (ovflw) = 0; \ 286} while (/* CONSTCOND */0) 287 288void cpustats(int *); 289void cpucounters(struct cpu_counter *); 290void deref_kptr(const void *, void *, size_t, const char *); 291void drvstats(int *); 292void doevcnt(int verbose, int type); 293void dohashstat(int, int, const char *); 294void dointr(int verbose); 295void dopool(int, int); 296void dopoolcache(int); 297void dosum(void); 298void dovmstat(struct timespec *, int); 299void print_total_hdr(void); 300void dovmtotal(struct timespec *, int); 301void kread(struct nlist *, int, void *, size_t); 302int kreadc(struct nlist *, int, void *, size_t); 303void needhdr(int); 304void getnlist(int); 305long getuptime(void); 306void printhdr(void); 307long pct(u_long, u_long); 308__dead static void usage(void); 309void doforkst(void); 310 311void hist_traverse(int, const char *); 312void hist_dodump(struct kern_history *); 313void hist_traverse_sysctl(int, const char *); 314void hist_dodump_sysctl(int[], unsigned int); 315 316char **choosedrives(char **); 317 318/* Namelist and memory file names. */ 319char *nlistf, *memf; 320 321/* allow old usage [vmstat 1] */ 322#define BACKWARD_COMPATIBILITY 323 324static const int clockrate_mib[] = { CTL_KERN, KERN_CLOCKRATE }; 325static const int vmmeter_mib[] = { CTL_VM, VM_METER }; 326static const int uvmexp2_mib[] = { CTL_VM, VM_UVMEXP2 }; 327static const int boottime_mib[] = { CTL_KERN, KERN_BOOTTIME }; 328static char kvm_errbuf[_POSIX2_LINE_MAX]; 329 330int 331main(int argc, char *argv[]) 332{ 333 int c, todo, verbose, wide; 334 struct timespec interval; 335 int reps; 336 gid_t egid = getegid(); 337 const char *histname, *hashname; 338 339 histname = hashname = NULL; 340 (void)setegid(getgid()); 341 memf = nlistf = NULL; 342 reps = todo = verbose = wide = 0; 343 interval.tv_sec = 0; 344 interval.tv_nsec = 0; 345 while ((c = getopt(argc, argv, "Cc:efh:HilLM:mN:stu:UvWw:")) != -1) { 346 switch (c) { 347 case 'c': 348 reps = atoi(optarg); 349 break; 350 case 'C': 351 todo |= POOLCACHESTAT; 352 break; 353 case 'e': 354 todo |= EVCNTSTAT; 355 break; 356 case 'f': 357 todo |= FORKSTAT; 358 break; 359 case 'h': 360 hashname = optarg; 361 /* FALLTHROUGH */ 362 case 'H': 363 todo |= HASHSTAT; 364 break; 365 case 'i': 366 todo |= INTRSTAT; 367 break; 368 case 'l': 369 todo |= HISTLIST; 370 break; 371 case 'L': 372 todo |= HASHLIST; 373 break; 374 case 'M': 375 memf = optarg; 376 break; 377 case 'm': 378 todo |= MEMSTAT; 379 break; 380 case 'N': 381 nlistf = optarg; 382 break; 383 case 's': 384 todo |= SUMSTAT; 385 break; 386 case 't': 387 todo |= VMTOTAL; 388 break; 389 case 'u': 390 histname = optarg; 391 /* FALLTHROUGH */ 392 case 'U': 393 todo |= HISTDUMP; 394 break; 395 case 'v': 396 verbose++; 397 break; 398 case 'W': 399 wide++; 400 break; 401 case 'w': 402 interval.tv_sec = atol(optarg); 403 break; 404 case '?': 405 default: 406 usage(); 407 } 408 } 409 argc -= optind; 410 argv += optind; 411 412 if (todo == 0) 413 todo = VMSTAT; 414 415 /* 416 * Discard setgid privileges. If not the running kernel, we toss 417 * them away totally so that bad guys can't print interesting stuff 418 * from kernel memory, otherwise switch back to kmem for the 419 * duration of the kvm_openfiles() call. 420 */ 421 if (nlistf != NULL || memf != NULL) 422 (void)setgid(getgid()); 423 else 424 (void)setegid(egid); 425 426 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, kvm_errbuf); 427 if (kd == NULL) { 428 if (nlistf != NULL || memf != NULL) { 429 errx(1, "kvm_openfiles: %s", kvm_errbuf); 430 } 431 } 432 433 if (nlistf == NULL && memf == NULL) 434 (void)setgid(getgid()); 435 436 437 if (todo & VMSTAT) { 438 struct winsize winsize; 439 440 (void)drvinit(0);/* Initialize disk stats, no disks selected. */ 441 442 (void)setgid(getgid()); /* don't need privs anymore */ 443 444 argv = choosedrives(argv); /* Select disks. */ 445 winsize.ws_row = 0; 446 (void)ioctl(STDOUT_FILENO, TIOCGWINSZ, &winsize); 447 if (winsize.ws_row > 0) 448 winlines = winsize.ws_row; 449 450 } 451 452#ifdef BACKWARD_COMPATIBILITY 453 if (*argv) { 454 interval.tv_sec = atol(*argv); 455 if (*++argv) 456 reps = atoi(*argv); 457 } 458#endif 459 460 if (interval.tv_sec) { 461 if (!reps) 462 reps = -1; 463 } else if (reps) 464 interval.tv_sec = 1; 465 466 467 getnlist(todo); 468 /* 469 * Statistics dumping is incompatible with the default 470 * VMSTAT/dovmstat() output. So perform the interval/reps handling 471 * for it here. 472 */ 473 if ((todo & (VMSTAT|VMTOTAL)) == 0) { 474 for (;;) { 475 if (todo & (HISTLIST|HISTDUMP)) { 476 if ((todo & (HISTLIST|HISTDUMP)) == 477 (HISTLIST|HISTDUMP)) 478 errx(1, "you may list or dump," 479 " but not both!"); 480 if (memf != NULL) 481 hist_traverse(todo, histname); 482 else 483 hist_traverse_sysctl(todo, histname); 484 (void)putchar('\n'); 485 } 486 if (todo & FORKSTAT) { 487 doforkst(); 488 (void)putchar('\n'); 489 } 490 if (todo & MEMSTAT) { 491 dopool(verbose, wide); 492 (void)putchar('\n'); 493 } 494 if (todo & POOLCACHESTAT) { 495 dopoolcache(verbose); 496 (void)putchar('\n'); 497 } 498 if (todo & SUMSTAT) { 499 dosum(); 500 (void)putchar('\n'); 501 } 502 if (todo & INTRSTAT) { 503 dointr(verbose); 504 (void)putchar('\n'); 505 } 506 if (todo & EVCNTSTAT) { 507 doevcnt(verbose, EVCNT_TYPE_ANY); 508 (void)putchar('\n'); 509 } 510 if (todo & (HASHLIST|HASHSTAT)) { 511 if ((todo & (HASHLIST|HASHSTAT)) == 512 (HASHLIST|HASHSTAT)) 513 errx(1, "you may list or display," 514 " but not both!"); 515 dohashstat(verbose, todo, hashname); 516 (void)putchar('\n'); 517 } 518 519 fflush(stdout); 520 if (reps >= 0 && --reps <=0) 521 break; 522 (void)nanosleep(&interval, NULL); 523 } 524 } else { 525 if ((todo & (VMSTAT|VMTOTAL)) == (VMSTAT|VMTOTAL)) { 526 errx(1, "you may not both do vmstat and vmtotal"); 527 } 528 if (todo & VMSTAT) 529 dovmstat(&interval, reps); 530 if (todo & VMTOTAL) 531 dovmtotal(&interval, reps); 532 } 533 return 0; 534} 535 536void 537getnlist(int todo) 538{ 539 static int namelist_done = 0; 540 static int done = 0; 541 int c; 542 size_t i; 543 544 if (kd == NULL) 545 errx(1, "kvm_openfiles: %s", kvm_errbuf); 546 547 if (!namelist_done) { 548 namelist_done = 1; 549 if ((c = kvm_nlist(kd, namelist)) != 0) { 550 int doexit = 0; 551 if (c == -1) 552 errx(1, "kvm_nlist: %s %s", 553 "namelist", kvm_geterr(kd)); 554 for (i = 0; i < __arraycount(namelist)-1; i++) 555 if (namelist[i].n_type == 0 && 556 i != X_TIME_SECOND && 557 i != X_TIME) { 558 if (doexit++ == 0) 559 (void)fprintf(stderr, 560 "%s: undefined symbols:", 561 getprogname()); 562 (void)fprintf(stderr, " %s", 563 namelist[i].n_name); 564 } 565 if (doexit) { 566 (void)fputc('\n', stderr); 567 exit(1); 568 } 569 } 570 } 571 if ((todo & (SUMSTAT|INTRSTAT)) && !(done & (SUMSTAT|INTRSTAT))) { 572 done |= SUMSTAT|INTRSTAT; 573 (void) kvm_nlist(kd, intrnl); 574 } 575 if ((todo & (HASHLIST|HASHSTAT)) && !(done & (HASHLIST|HASHSTAT))) { 576 done |= HASHLIST|HASHSTAT; 577 if ((c = kvm_nlist(kd, hashnl)) == -1 || c == X_HASHNL_SIZE) 578 errx(1, "kvm_nlist: %s %s", "hashnl", kvm_geterr(kd)); 579 } 580 if ((todo & (HISTLIST|HISTDUMP)) && !(done & (HISTLIST|HISTDUMP))) { 581 done |= HISTLIST|HISTDUMP; 582 if (kvm_nlist(kd, histnl) == -1) 583 errx(1, "kvm_nlist: %s %s", "histnl", kvm_geterr(kd)); 584 } 585} 586 587char ** 588choosedrives(char **argv) 589{ 590 size_t i; 591 592 /* 593 * Choose drives to be displayed. Priority goes to (in order) drives 594 * supplied as arguments, default drives. If everything isn't filled 595 * in and there are drives not taken care of, display the first few 596 * that fit. 597 */ 598#define BACKWARD_COMPATIBILITY 599 for (ndrives = 0; *argv; ++argv) { 600#ifdef BACKWARD_COMPATIBILITY 601 if (isdigit((unsigned char)**argv)) 602 break; 603#endif 604 for (i = 0; i < ndrive; i++) { 605 if (strcmp(dr_name[i], *argv)) 606 continue; 607 drv_select[i] = 1; 608 ++ndrives; 609 break; 610 } 611 } 612 for (i = 0; i < ndrive && ndrives < 2; i++) { 613 if (drv_select[i]) 614 continue; 615 drv_select[i] = 1; 616 ++ndrives; 617 } 618 619 return (argv); 620} 621 622long 623getuptime(void) 624{ 625 static struct timespec boottime; 626 struct timespec now; 627 time_t uptime, nowsec; 628 629 if (memf == NULL) { 630 if (boottime.tv_sec == 0) { 631 size_t buflen = sizeof(boottime); 632 if (sysctl(boottime_mib, __arraycount(boottime_mib), 633 &boottime, &buflen, NULL, 0) == -1) 634 warn("Can't get boottime"); 635 } 636 clock_gettime(CLOCK_REALTIME, &now); 637 } else { 638 if (boottime.tv_sec == 0) 639 kread(namelist, X_BOOTTIME, &boottime, 640 sizeof(boottime)); 641 if (kreadc(namelist, X_TIME_SECOND, &nowsec, sizeof(nowsec))) { 642 /* 643 * XXX this assignment dance can be removed once 644 * timeval tv_sec is SUS mandated time_t 645 */ 646 now.tv_sec = nowsec; 647 now.tv_nsec = 0; 648 } else { 649 kread(namelist, X_TIME, &now, sizeof(now)); 650 } 651 } 652 uptime = now.tv_sec - boottime.tv_sec; 653 if (uptime <= 0 || uptime > 60*60*24*365*10) 654 errx(1, "time makes no sense; namelist must be wrong."); 655 return (uptime); 656} 657 658int hz, hdrcnt; 659 660void 661print_total_hdr(void) 662{ 663 664 (void)printf("procs memory\n"); 665 (void)printf("ru dw pw sl"); 666 (void)printf(" total-v active-v active-r"); 667 (void)printf(" vm-sh avm-sh rm-sh arm-sh free\n"); 668 hdrcnt = winlines - 2; 669} 670 671void 672dovmtotal(struct timespec *interval, int reps) 673{ 674 struct vmtotal total; 675 size_t size; 676 677 (void)signal(SIGCONT, needhdr); 678 679 for (hdrcnt = 1;;) { 680 if (!--hdrcnt) 681 print_total_hdr(); 682 if (memf != NULL) { 683 warnx("Unable to get vmtotals from crash dump."); 684 (void)memset(&total, 0, sizeof(total)); 685 } else { 686 size = sizeof(total); 687 if (sysctl(vmmeter_mib, __arraycount(vmmeter_mib), 688 &total, &size, NULL, 0) == -1) { 689 warn("Can't get vmtotals"); 690 (void)memset(&total, 0, sizeof(total)); 691 } 692 } 693 (void)printf("%2d ", total.t_rq); 694 (void)printf("%2d ", total.t_dw); 695 (void)printf("%2d ", total.t_pw); 696 (void)printf("%2d ", total.t_sl); 697 698 (void)printf("%9d ", total.t_vm); 699 (void)printf("%9d ", total.t_avm); 700 (void)printf("%9d ", total.t_arm); 701 (void)printf("%5d ", total.t_vmshr); 702 (void)printf("%6d ", total.t_avmshr); 703 (void)printf("%5d ", total.t_rmshr); 704 (void)printf("%6d ", total.t_armshr); 705 (void)printf("%5d", total.t_free); 706 707 (void)putchar('\n'); 708 709 (void)fflush(stdout); 710 if (reps >= 0 && --reps <= 0) 711 break; 712 713 (void)nanosleep(interval, NULL); 714 } 715} 716 717void 718dovmstat(struct timespec *interval, int reps) 719{ 720 struct vmtotal total; 721 time_t uptime, halfuptime; 722 size_t size; 723 int pagesize = getpagesize(); 724 int ovflw; 725 726 uptime = getuptime(); 727 halfuptime = uptime / 2; 728 (void)signal(SIGCONT, needhdr); 729 730 if (memf != NULL) { 731 if (namelist[X_STATHZ].n_type != 0 && namelist[X_STATHZ].n_value != 0) 732 kread(namelist, X_STATHZ, &hz, sizeof(hz)); 733 if (!hz) 734 kread(namelist, X_HZ, &hz, sizeof(hz)); 735 } else { 736 struct clockinfo clockinfo; 737 size = sizeof(clockinfo); 738 if (sysctl(clockrate_mib, 2, &clockinfo, &size, NULL, 0) == -1) 739 err(1, "sysctl kern.clockrate failed"); 740 hz = clockinfo.stathz; 741 if (!hz) 742 hz = clockinfo.hz; 743 } 744 745 for (hdrcnt = 1;;) { 746 if (!--hdrcnt) 747 printhdr(); 748 /* Read new disk statistics */ 749 cpureadstats(); 750 drvreadstats(); 751 tkreadstats(); 752 if (memf != NULL) { 753 struct uvmexp uvmexp_kernel; 754 /* 755 * XXX Can't do this if we're reading a crash 756 * XXX dump because they're lazily-calculated. 757 */ 758 warnx("Unable to get vmtotals from crash dump."); 759 (void)memset(&total, 0, sizeof(total)); 760 kread(namelist, X_UVMEXP, &uvmexp_kernel, sizeof(uvmexp_kernel)); 761#define COPY(field) uvmexp.field = uvmexp_kernel.field 762 COPY(pdreact); 763 COPY(pageins); 764 COPY(pgswapout); 765 COPY(pdfreed); 766 COPY(pdscans); 767#undef COPY 768 } else { 769 size = sizeof(total); 770 if (sysctl(vmmeter_mib, __arraycount(vmmeter_mib), 771 &total, &size, NULL, 0) == -1) { 772 warn("Can't get vmtotals"); 773 (void)memset(&total, 0, sizeof(total)); 774 } 775 size = sizeof(uvmexp); 776 if (sysctl(uvmexp2_mib, __arraycount(uvmexp2_mib), &uvmexp, 777 &size, NULL, 0) == -1) 778 warn("sysctl vm.uvmexp2 failed"); 779 } 780 cpucounters(&cpucounter); 781 ovflw = 0; 782 PRWORD(ovflw, " %*d", 2, 1, total.t_rq - 1); 783 PRWORD(ovflw, " %*d", 2, 1, total.t_dw + total.t_pw); 784#define pgtok(a) (long)((a) * ((uint32_t)pagesize >> 10)) 785#define rate(x) (u_long)(((x) + halfuptime) / uptime) /* round */ 786 PRWORD(ovflw, " %*ld", 9, 1, pgtok(total.t_avm)); 787 PRWORD(ovflw, " %*ld", 7, 1, pgtok(total.t_free)); 788 PRWORD(ovflw, " %*ld", 5, 1, 789 rate(cpucounter.nfault - ocpucounter.nfault)); 790 PRWORD(ovflw, " %*ld", 4, 1, 791 rate(uvmexp.pdreact - ouvmexp.pdreact)); 792 PRWORD(ovflw, " %*ld", 4, 1, 793 rate(uvmexp.pageins - ouvmexp.pageins)); 794 PRWORD(ovflw, " %*ld", 5, 1, 795 rate(uvmexp.pgswapout - ouvmexp.pgswapout)); 796 PRWORD(ovflw, " %*ld", 5, 1, 797 rate(uvmexp.pdfreed - ouvmexp.pdfreed)); 798 PRWORD(ovflw, " %*ld", 6, 2, 799 rate(uvmexp.pdscans - ouvmexp.pdscans)); 800 drvstats(&ovflw); 801 PRWORD(ovflw, " %*ld", 5, 1, 802 rate(cpucounter.nintr - ocpucounter.nintr)); 803 PRWORD(ovflw, " %*ld", 5, 1, 804 rate(cpucounter.nsyscall - ocpucounter.nsyscall)); 805 PRWORD(ovflw, " %*ld", 4, 1, 806 rate(cpucounter.nswtch - ocpucounter.nswtch)); 807 cpustats(&ovflw); 808 (void)putchar('\n'); 809 (void)fflush(stdout); 810 if (reps >= 0 && --reps <= 0) 811 break; 812 ouvmexp = uvmexp; 813 ocpucounter = cpucounter; 814 uptime = interval->tv_sec; 815 /* 816 * We round upward to avoid losing low-frequency events 817 * (i.e., >= 1 per interval but < 1 per second). 818 */ 819 halfuptime = uptime == 1 ? 0 : (uptime + 1) / 2; 820 (void)nanosleep(interval, NULL); 821 } 822} 823 824void 825printhdr(void) 826{ 827 size_t i; 828 829 (void)printf(" procs memory page%*s", 23, ""); 830 if (ndrives > 0) 831 (void)printf("%s %*sfaults cpu\n", 832 ((ndrives > 1) ? "disks" : "disk"), 833 ((ndrives > 1) ? ndrives * 3 - 4 : 0), ""); 834 else 835 (void)printf("%*s faults cpu\n", 836 ndrives * 3, ""); 837 838 (void)printf(" r b avm fre flt re pi po fr sr "); 839 for (i = 0; i < ndrive; i++) 840 if (drv_select[i]) 841 (void)printf("%c%c ", dr_name[i][0], 842 dr_name[i][strlen(dr_name[i]) - 1]); 843 (void)printf(" in sy cs us sy id\n"); 844 hdrcnt = winlines - 2; 845} 846 847/* 848 * Force a header to be prepended to the next output. 849 */ 850void 851/*ARGSUSED*/ 852needhdr(int dummy) 853{ 854 855 hdrcnt = 1; 856} 857 858long 859pct(u_long top, u_long bot) 860{ 861 long ans; 862 863 if (bot == 0) 864 return (0); 865 ans = (long)((quad_t)top * 100 / bot); 866 return (ans); 867} 868 869#define PCT(top, bot) (int)pct((u_long)(top), (u_long)(bot)) 870 871void 872dosum(void) 873{ 874 struct nchstats nch_stats; 875 uint64_t nchtotal; 876 size_t ssize; 877 int active_kernel; 878 struct cpu_counter cc; 879 880 /* 881 * The "active" and "inactive" variables 882 * are now estimated by the kernel and sadly 883 * can not easily be dug out of a crash dump. 884 */ 885 ssize = sizeof(uvmexp); 886 memset(&uvmexp, 0, ssize); 887 active_kernel = (memf == NULL); 888 if (active_kernel) { 889 /* only on active kernel */ 890 if (sysctl(uvmexp2_mib, __arraycount(uvmexp2_mib), &uvmexp, 891 &ssize, NULL, 0) == -1) 892 warn("sysctl vm.uvmexp2 failed"); 893 } else { 894 struct uvmexp uvmexp_kernel; 895 kread(namelist, X_UVMEXP, &uvmexp_kernel, sizeof(uvmexp_kernel)); 896#define COPY(field) uvmexp.field = uvmexp_kernel.field 897 COPY(pagesize); 898 COPY(ncolors); 899 COPY(npages); 900 COPY(free); 901 COPY(paging); 902 COPY(wired); 903 COPY(zeropages); 904 COPY(reserve_pagedaemon); 905 COPY(reserve_kernel); 906 COPY(anonpages); 907 COPY(filepages); 908 COPY(execpages); 909 COPY(freemin); 910 COPY(freetarg); 911 COPY(wiredmax); 912 COPY(nswapdev); 913 COPY(swpages); 914 COPY(swpginuse); 915 COPY(nswget); 916 COPY(pageins); 917 COPY(pdpageouts); 918 COPY(pgswapin); 919 COPY(pgswapout); 920 COPY(forks); 921 COPY(forks_ppwait); 922 COPY(forks_sharevm); 923 COPY(pga_zerohit); 924 COPY(pga_zeromiss); 925 COPY(zeroaborts); 926 COPY(colorhit); 927 COPY(colormiss); 928 COPY(cpuhit); 929 COPY(cpumiss); 930 COPY(fltnoram); 931 COPY(fltnoanon); 932 COPY(fltpgwait); 933 COPY(fltpgrele); 934 COPY(fltrelck); 935 COPY(fltrelckok); 936 COPY(fltanget); 937 COPY(fltanretry); 938 COPY(fltamcopy); 939 COPY(fltamcopy); 940 COPY(fltnomap); 941 COPY(fltlget); 942 COPY(fltget); 943 COPY(flt_anon); 944 COPY(flt_acow); 945 COPY(flt_obj); 946 COPY(flt_prcopy); 947 COPY(flt_przero); 948 COPY(pdwoke); 949 COPY(pdrevs); 950 COPY(pdfreed); 951 COPY(pdscans); 952 COPY(pdanscan); 953 COPY(pdobscan); 954 COPY(pdreact); 955 COPY(pdbusy); 956 COPY(pdpending); 957 COPY(pddeact); 958#undef COPY 959 } 960 961 962 (void)printf("%9" PRIu64 " bytes per page\n", uvmexp.pagesize); 963 964 (void)printf("%9" PRIu64 " page color%s\n", 965 uvmexp.ncolors, uvmexp.ncolors == 1 ? "" : "s"); 966 967 (void)printf("%9" PRIu64 " pages managed\n", uvmexp.npages); 968 (void)printf("%9" PRIu64 " pages free\n", uvmexp.free); 969 if (active_kernel) { 970 (void)printf("%9" PRIu64 " pages active\n", uvmexp.active); 971 (void)printf("%9" PRIu64 " pages inactive\n", uvmexp.inactive); 972 } 973 (void)printf("%9" PRIu64 " pages paging\n", uvmexp.paging); 974 (void)printf("%9" PRIu64 " pages wired\n", uvmexp.wired); 975 (void)printf("%9" PRIu64 " zero pages\n", uvmexp.zeropages); 976 (void)printf("%9" PRIu64 " reserve pagedaemon pages\n", 977 uvmexp.reserve_pagedaemon); 978 (void)printf("%9" PRIu64 " reserve kernel pages\n", uvmexp.reserve_kernel); 979 (void)printf("%9" PRIu64 " anonymous pages\n", uvmexp.anonpages); 980 (void)printf("%9" PRIu64 " cached file pages\n", uvmexp.filepages); 981 (void)printf("%9" PRIu64 " cached executable pages\n", uvmexp.execpages); 982 983 (void)printf("%9" PRIu64 " minimum free pages\n", uvmexp.freemin); 984 (void)printf("%9" PRIu64 " target free pages\n", uvmexp.freetarg); 985 (void)printf("%9" PRIu64 " maximum wired pages\n", uvmexp.wiredmax); 986 987 (void)printf("%9" PRIu64 " swap devices\n", uvmexp.nswapdev); 988 (void)printf("%9" PRIu64 " swap pages\n", uvmexp.swpages); 989 (void)printf("%9" PRIu64 " swap pages in use\n", uvmexp.swpginuse); 990 (void)printf("%9" PRIu64 " swap allocations\n", uvmexp.nswget); 991 992 cpucounters(&cc); 993 994 (void)printf("%9" PRIu64 " total faults taken\n", cc.nfault); 995 (void)printf("%9" PRIu64 " traps\n", cc.ntrap); 996 (void)printf("%9" PRIu64 " device interrupts\n", cc.nintr); 997 (void)printf("%9" PRIu64 " CPU context switches\n", cc.nswtch); 998 (void)printf("%9" PRIu64 " software interrupts\n", cc.nsoft); 999 (void)printf("%9" PRIu64 " system calls\n", cc.nsyscall); 1000 (void)printf("%9" PRIu64 " pagein requests\n", uvmexp.pageins); 1001 (void)printf("%9" PRIu64 " pageout requests\n", uvmexp.pdpageouts); 1002 (void)printf("%9" PRIu64 " pages swapped in\n", uvmexp.pgswapin); 1003 (void)printf("%9" PRIu64 " pages swapped out\n", uvmexp.pgswapout); 1004 (void)printf("%9" PRIu64 " forks total\n", uvmexp.forks); 1005 (void)printf("%9" PRIu64 " forks blocked parent\n", uvmexp.forks_ppwait); 1006 (void)printf("%9" PRIu64 " forks shared address space with parent\n", 1007 uvmexp.forks_sharevm); 1008 (void)printf("%9" PRIu64 " pagealloc zero wanted and avail\n", 1009 uvmexp.pga_zerohit); 1010 (void)printf("%9" PRIu64 " pagealloc zero wanted and not avail\n", 1011 uvmexp.pga_zeromiss); 1012 (void)printf("%9" PRIu64 " aborts of idle page zeroing\n", 1013 uvmexp.zeroaborts); 1014 (void)printf("%9" PRIu64 " pagealloc desired color avail\n", 1015 uvmexp.colorhit); 1016 (void)printf("%9" PRIu64 " pagealloc desired color not avail\n", 1017 uvmexp.colormiss); 1018 (void)printf("%9" PRIu64 " pagealloc local cpu avail\n", 1019 uvmexp.cpuhit); 1020 (void)printf("%9" PRIu64 " pagealloc local cpu not avail\n", 1021 uvmexp.cpumiss); 1022 1023 (void)printf("%9" PRIu64 " faults with no memory\n", uvmexp.fltnoram); 1024 (void)printf("%9" PRIu64 " faults with no anons\n", uvmexp.fltnoanon); 1025 (void)printf("%9" PRIu64 " faults had to wait on pages\n", uvmexp.fltpgwait); 1026 (void)printf("%9" PRIu64 " faults found released page\n", uvmexp.fltpgrele); 1027 (void)printf("%9" PRIu64 " faults relock (%" PRIu64 " ok)\n", uvmexp.fltrelck, 1028 uvmexp.fltrelckok); 1029 (void)printf("%9" PRIu64 " anon page faults\n", uvmexp.fltanget); 1030 (void)printf("%9" PRIu64 " anon retry faults\n", uvmexp.fltanretry); 1031 (void)printf("%9" PRIu64 " amap copy faults\n", uvmexp.fltamcopy); 1032 (void)printf("%9" PRIu64 " neighbour anon page faults\n", uvmexp.fltnamap); 1033 (void)printf("%9" PRIu64 " neighbour object page faults\n", uvmexp.fltnomap); 1034 (void)printf("%9" PRIu64 " locked pager get faults\n", uvmexp.fltlget); 1035 (void)printf("%9" PRIu64 " unlocked pager get faults\n", uvmexp.fltget); 1036 (void)printf("%9" PRIu64 " anon faults\n", uvmexp.flt_anon); 1037 (void)printf("%9" PRIu64 " anon copy on write faults\n", uvmexp.flt_acow); 1038 (void)printf("%9" PRIu64 " object faults\n", uvmexp.flt_obj); 1039 (void)printf("%9" PRIu64 " promote copy faults\n", uvmexp.flt_prcopy); 1040 (void)printf("%9" PRIu64 " promote zero fill faults\n", uvmexp.flt_przero); 1041 1042 (void)printf("%9" PRIu64 " times daemon wokeup\n",uvmexp.pdwoke); 1043 (void)printf("%9" PRIu64 " revolutions of the clock hand\n", uvmexp.pdrevs); 1044 (void)printf("%9" PRIu64 " pages freed by daemon\n", uvmexp.pdfreed); 1045 (void)printf("%9" PRIu64 " pages scanned by daemon\n", uvmexp.pdscans); 1046 (void)printf("%9" PRIu64 " anonymous pages scanned by daemon\n", 1047 uvmexp.pdanscan); 1048 (void)printf("%9" PRIu64 " object pages scanned by daemon\n", uvmexp.pdobscan); 1049 (void)printf("%9" PRIu64 " pages reactivated\n", uvmexp.pdreact); 1050 (void)printf("%9" PRIu64 " pages found busy by daemon\n", uvmexp.pdbusy); 1051 (void)printf("%9" PRIu64 " total pending pageouts\n", uvmexp.pdpending); 1052 (void)printf("%9" PRIu64 " pages deactivated\n", uvmexp.pddeact); 1053 1054 if (active_kernel) { 1055 ssize = sizeof(nch_stats); 1056 if (sysctlbyname("vfs.namecache_stats", &nch_stats, &ssize, 1057 NULL, 0)) { 1058 warn("vfs.namecache_stats failed"); 1059 memset(&nch_stats, 0, sizeof(nch_stats)); 1060 } 1061 } else { 1062 kread(namelist, X_NCHSTATS, &nch_stats, sizeof(nch_stats)); 1063 } 1064 1065 nchtotal = nch_stats.ncs_goodhits + nch_stats.ncs_neghits + 1066 nch_stats.ncs_badhits + nch_stats.ncs_falsehits + 1067 nch_stats.ncs_miss + nch_stats.ncs_long; 1068 (void)printf("%9" PRIu64 " total name lookups\n", nchtotal); 1069 (void)printf("%9" PRIu64 " good hits\n", nch_stats.ncs_goodhits); 1070 (void)printf("%9" PRIu64 " negative hits\n", nch_stats.ncs_neghits); 1071 (void)printf("%9" PRIu64 " bad hits\n", nch_stats.ncs_badhits); 1072 (void)printf("%9" PRIu64 " false hits\n", nch_stats.ncs_falsehits); 1073 (void)printf("%9" PRIu64 " miss\n", nch_stats.ncs_miss); 1074 (void)printf("%9" PRIu64 " too long\n", nch_stats.ncs_long); 1075 (void)printf("%9" PRIu64 " pass2 hits\n", nch_stats.ncs_pass2); 1076 (void)printf("%9" PRIu64 " 2passes\n", nch_stats.ncs_2passes); 1077 (void)printf( 1078 "%9s cache hits (%d%% pos + %d%% neg) system %d%% per-process\n", 1079 "", PCT(nch_stats.ncs_goodhits, nchtotal), 1080 PCT(nch_stats.ncs_neghits, nchtotal), 1081 PCT(nch_stats.ncs_pass2, nchtotal)); 1082 (void)printf("%9s deletions %d%%, falsehits %d%%, toolong %d%%\n", "", 1083 PCT(nch_stats.ncs_badhits, nchtotal), 1084 PCT(nch_stats.ncs_falsehits, nchtotal), 1085 PCT(nch_stats.ncs_long, nchtotal)); 1086} 1087 1088void 1089doforkst(void) 1090{ 1091 if (memf != NULL) { 1092 struct uvmexp uvmexp_kernel; 1093 kread(namelist, X_UVMEXP, &uvmexp_kernel, sizeof(uvmexp_kernel)); 1094#define COPY(field) uvmexp.field = uvmexp_kernel.field 1095 COPY(forks); 1096 COPY(forks_ppwait); 1097 COPY(forks_sharevm); 1098#undef COPY 1099 } else { 1100 size_t size = sizeof(uvmexp); 1101 if (sysctl(uvmexp2_mib, __arraycount(uvmexp2_mib), &uvmexp, 1102 &size, NULL, 0) == -1) 1103 warn("sysctl vm.uvmexp2 failed"); 1104 } 1105 1106 (void)printf("%" PRIu64 " forks total\n", uvmexp.forks); 1107 (void)printf("%" PRIu64 " forks blocked parent\n", uvmexp.forks_ppwait); 1108 (void)printf("%" PRIu64 " forks shared address space with parent\n", 1109 uvmexp.forks_sharevm); 1110} 1111 1112void 1113drvstats(int *ovflwp) 1114{ 1115 size_t dn; 1116 double etime; 1117 int ovflw = *ovflwp; 1118 1119 /* Calculate disk stat deltas. */ 1120 cpuswap(); 1121 drvswap(); 1122 tkswap(); 1123 etime = cur.cp_etime; 1124 1125 for (dn = 0; dn < ndrive; ++dn) { 1126 if (!drv_select[dn]) 1127 continue; 1128 PRWORD(ovflw, " %*.0f", 3, 1, 1129 (cur.rxfer[dn] + cur.wxfer[dn]) / etime); 1130 } 1131 *ovflwp = ovflw; 1132} 1133 1134void 1135cpucounters(struct cpu_counter *cc) 1136{ 1137 static struct cpu_info **cpu_infos; 1138 static int initialised; 1139 struct cpu_info **slot; 1140 1141 if (memf == NULL) { 1142 cc->nintr = uvmexp.intrs; 1143 cc->nsyscall = uvmexp.syscalls; 1144 cc->nswtch = uvmexp.swtch; 1145 cc->nfault = uvmexp.faults; 1146 cc->ntrap = uvmexp.traps; 1147 cc->nsoft = uvmexp.softs; 1148 return; 1149 } 1150 1151 if (!initialised) { 1152 kread(namelist, X_CPU_INFOS, &cpu_infos, sizeof(cpu_infos)); 1153 initialised = 1; 1154 } 1155 1156 slot = cpu_infos; 1157 1158 memset(cc, 0, sizeof(*cc)); 1159 1160 for (;;) { 1161 struct cpu_info tci, *ci = NULL; 1162 1163 deref_kptr(slot++, &ci, sizeof(ci), "CPU array trashed"); 1164 if (!ci) { 1165 break; 1166 } 1167 1168 if ((size_t)kvm_read(kd, (u_long)ci, &tci, sizeof(tci)) 1169 != sizeof(tci)) { 1170 warnx("Can't read cpu info from %p (%s)", 1171 ci, kvm_geterr(kd)); 1172 memset(cc, 0, sizeof(*cc)); 1173 return; 1174 } 1175 cc->nintr += tci.ci_data.cpu_nintr; 1176 cc->nsyscall += tci.ci_data.cpu_nsyscall; 1177 cc->nswtch = tci.ci_data.cpu_nswtch; 1178 cc->nfault = tci.ci_data.cpu_nfault; 1179 cc->ntrap = tci.ci_data.cpu_ntrap; 1180 cc->nsoft = tci.ci_data.cpu_nsoft; 1181 } 1182} 1183 1184void 1185cpustats(int *ovflwp) 1186{ 1187 int state; 1188 double pcnt, total; 1189 double stat_us, stat_sy, stat_id; 1190 int ovflw = *ovflwp; 1191 1192 total = 0; 1193 for (state = 0; state < CPUSTATES; ++state) 1194 total += cur.cp_time[state]; 1195 if (total) 1196 pcnt = 100 / total; 1197 else 1198 pcnt = 0; 1199 stat_us = (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * pcnt; 1200 stat_sy = (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * pcnt; 1201 stat_id = cur.cp_time[CP_IDLE] * pcnt; 1202 PRWORD(ovflw, " %*.0f", ((stat_sy >= 100) ? 2 : 3), 1, stat_us); 1203 PRWORD(ovflw, " %*.0f", ((stat_us >= 100 || stat_id >= 100) ? 2 : 3), 1, 1204 stat_sy); 1205 PRWORD(ovflw, " %*.0f", 3, 1, stat_id); 1206 *ovflwp = ovflw; 1207} 1208 1209void 1210dointr(int verbose) 1211{ 1212 unsigned long *intrcnt, *ointrcnt; 1213 unsigned long long inttotal, uptime; 1214 int nintr, inamlen; 1215 char *intrname, *ointrname; 1216 1217 inttotal = 0; 1218 uptime = getuptime(); 1219 (void)printf("%-34s %16s %8s\n", "interrupt", "total", "rate"); 1220 nintr = intrnl[X_EINTRCNT].n_value - intrnl[X_INTRCNT].n_value; 1221 inamlen = intrnl[X_EINTRNAMES].n_value - intrnl[X_INTRNAMES].n_value; 1222 if (nintr != 0 && inamlen != 0) { 1223 ointrcnt = intrcnt = malloc((size_t)nintr); 1224 ointrname = intrname = malloc((size_t)inamlen); 1225 if (intrcnt == NULL || intrname == NULL) 1226 errx(1, "%s", ""); 1227 kread(intrnl, X_INTRCNT, intrcnt, (size_t)nintr); 1228 kread(intrnl, X_INTRNAMES, intrname, (size_t)inamlen); 1229 nintr /= sizeof(long); 1230 while (--nintr >= 0) { 1231 if (*intrcnt || verbose) 1232 (void)printf("%-34s %16llu %8llu\n", intrname, 1233 (unsigned long long)*intrcnt, 1234 (unsigned long long) 1235 (*intrcnt / uptime)); 1236 intrname += strlen(intrname) + 1; 1237 inttotal += *intrcnt++; 1238 } 1239 free(ointrcnt); 1240 free(ointrname); 1241 } 1242 1243 doevcnt(verbose, EVCNT_TYPE_INTR); 1244} 1245 1246void 1247doevcnt(int verbose, int type) 1248{ 1249 static const char * const evtypes [] = { "misc", "intr", "trap" }; 1250 uint64_t counttotal, uptime; 1251 struct evcntlist allevents; 1252 struct evcnt evcnt, *evptr; 1253 char evgroup[EVCNT_STRING_MAX], evname[EVCNT_STRING_MAX]; 1254 1255 counttotal = 0; 1256 uptime = getuptime(); 1257 if (type == EVCNT_TYPE_ANY) 1258 (void)printf("%-34s %16s %8s %s\n", "event", "total", "rate", 1259 "type"); 1260 1261 if (memf == NULL) do { 1262 const int mib[4] = { CTL_KERN, KERN_EVCNT, type, 1263 verbose ? KERN_EVCNT_COUNT_ANY : KERN_EVCNT_COUNT_NONZERO }; 1264 size_t buflen = 0; 1265 void *buf = NULL; 1266 const struct evcnt_sysctl *evs, *last_evs; 1267 for (;;) { 1268 size_t newlen; 1269 int error; 1270 if (buflen) 1271 buf = malloc(buflen); 1272 error = sysctl(mib, __arraycount(mib), 1273 buf, &newlen, NULL, 0); 1274 if (error) { 1275 err(1, "kern.evcnt"); 1276 if (buf) 1277 free(buf); 1278 return; 1279 } 1280 if (newlen <= buflen) { 1281 buflen = newlen; 1282 break; 1283 } 1284 if (buf) 1285 free(buf); 1286 buflen = newlen; 1287 } 1288 evs = buf; 1289 last_evs = (void *)((char *)buf + buflen); 1290 buflen /= sizeof(uint64_t); 1291 while (evs < last_evs 1292 && buflen >= sizeof(*evs)/sizeof(uint64_t) 1293 && buflen >= evs->ev_len) { 1294 (void)printf(type == EVCNT_TYPE_ANY ? 1295 "%s %s%*s %16"PRIu64" %8"PRIu64" %s\n" : 1296 "%s %s%*s %16"PRIu64" %8"PRIu64"\n", 1297 evs->ev_strings, 1298 evs->ev_strings + evs->ev_grouplen + 1, 1299 34 - (evs->ev_grouplen + 1 + evs->ev_namelen), "", 1300 evs->ev_count, 1301 evs->ev_count / uptime, 1302 (evs->ev_type < __arraycount(evtypes) ? 1303 evtypes[evs->ev_type] : "?")); 1304 buflen -= evs->ev_len; 1305 counttotal += evs->ev_count; 1306 evs = (const void *)((const uint64_t *)evs + evs->ev_len); 1307 } 1308 free(buf); 1309 if (type != EVCNT_TYPE_ANY) 1310 (void)printf("%-34s %16"PRIu64" %8"PRIu64"\n", 1311 "Total", counttotal, counttotal / uptime); 1312 return; 1313 } while (/*CONSTCOND*/ 0); 1314 1315 kread(namelist, X_ALLEVENTS, &allevents, sizeof allevents); 1316 evptr = TAILQ_FIRST(&allevents); 1317 while (evptr) { 1318 deref_kptr(evptr, &evcnt, sizeof(evcnt), "event chain trashed"); 1319 1320 evptr = TAILQ_NEXT(&evcnt, ev_list); 1321 if (evcnt.ev_count == 0 && !verbose) 1322 continue; 1323 if (type != EVCNT_TYPE_ANY && evcnt.ev_type != type) 1324 continue; 1325 1326 deref_kptr(evcnt.ev_group, evgroup, 1327 (size_t)evcnt.ev_grouplen + 1, "event chain trashed"); 1328 deref_kptr(evcnt.ev_name, evname, 1329 (size_t)evcnt.ev_namelen + 1, "event chain trashed"); 1330 1331 (void)printf(type == EVCNT_TYPE_ANY ? 1332 "%s %s%*s %16"PRIu64" %8"PRIu64" %s\n" : 1333 "%s %s%*s %16"PRIu64" %8"PRIu64"\n", 1334 evgroup, evname, 1335 34 - (evcnt.ev_grouplen + 1 + evcnt.ev_namelen), "", 1336 evcnt.ev_count, 1337 (evcnt.ev_count / uptime), 1338 (evcnt.ev_type < __arraycount(evtypes) ? 1339 evtypes[evcnt.ev_type] : "?")); 1340 1341 counttotal += evcnt.ev_count; 1342 } 1343 if (type != EVCNT_TYPE_ANY) 1344 (void)printf("%-34s %16"PRIu64" %8"PRIu64"\n", 1345 "Total", counttotal, counttotal / uptime); 1346} 1347 1348static void 1349dopool_sysctl(int verbose, int wide) 1350{ 1351 uint64_t total, inuse, this_total, this_inuse; 1352 struct { 1353 uint64_t pt_nget; 1354 uint64_t pt_nfail; 1355 uint64_t pt_nput; 1356 uint64_t pt_nout; 1357 uint64_t pt_nitems; 1358 uint64_t pt_npagealloc; 1359 uint64_t pt_npagefree; 1360 uint64_t pt_npages; 1361 } pool_totals; 1362 size_t i, len; 1363 int name_len, ovflw; 1364 struct pool_sysctl *pp, *data; 1365 char in_use[8], avail[8], maxp[32]; 1366 1367 data = asysctlbyname("kern.pool", &len); 1368 if (data == NULL) 1369 err(1, "failed to reead kern.pool"); 1370 1371 memset(&pool_totals, 0, sizeof pool_totals); 1372 total = inuse = 0; 1373 len /= sizeof(*data); 1374 1375 (void)printf("Memory resource pool statistics\n"); 1376 (void)printf( 1377 "%-*s%*s%*s%5s%*s%s%s%*s%*s%6s%s%6s%6s%6s%5s%s%s\n", 1378 wide ? 16 : 11, "Name", 1379 wide ? 6 : 5, "Size", 1380 wide ? 12 : 9, "Requests", 1381 "Fail", 1382 wide ? 12 : 9, "Releases", 1383 wide ? " InUse" : "", 1384 wide ? " Avail" : "", 1385 wide ? 7 : 6, "Pgreq", 1386 wide ? 7 : 6, "Pgrel", 1387 "Npage", 1388 wide ? " PageSz" : "", 1389 "Hiwat", 1390 "Minpg", 1391 "Maxpg", 1392 "Idle", 1393 wide ? " Flags" : "", 1394 wide ? " Util" : ""); 1395 1396 name_len = MIN((int)sizeof(pp->pr_wchan), wide ? 16 : 11); 1397 for (i = 0; i < len; ++i) { 1398 pp = &data[i]; 1399 if (pp->pr_nget == 0 && !verbose) 1400 continue; 1401 if (pp->pr_maxpages == UINT_MAX) 1402 (void)snprintf(maxp, sizeof(maxp), "inf"); 1403 else 1404 (void)snprintf(maxp, sizeof(maxp), "%" PRIu64, 1405 pp->pr_maxpages); 1406 ovflw = 0; 1407 PRWORD(ovflw, "%-*s", name_len, 0, pp->pr_wchan); 1408 PRWORD(ovflw, " %*" PRIu64, wide ? 6 : 5, 1, pp->pr_size); 1409 PRWORD(ovflw, " %*" PRIu64, wide ? 12 : 9, 1, pp->pr_nget); 1410 pool_totals.pt_nget += pp->pr_nget; 1411 PRWORD(ovflw, " %*" PRIu64, 5, 1, pp->pr_nfail); 1412 pool_totals.pt_nfail += pp->pr_nfail; 1413 PRWORD(ovflw, " %*" PRIu64, wide ? 12 : 9, 1, pp->pr_nput); 1414 pool_totals.pt_nput += pp->pr_nput; 1415 if (wide) { 1416 PRWORD(ovflw, " %*" PRIu64, 7, 1, pp->pr_nout); 1417 pool_totals.pt_nout += pp->pr_nout; 1418 } 1419 if (wide) { 1420 PRWORD(ovflw, " %*" PRIu64, 6, 1, pp->pr_nitems); 1421 pool_totals.pt_nitems += pp->pr_nitems; 1422 } 1423 PRWORD(ovflw, " %*" PRIu64, wide ? 7 : 6, 1, pp->pr_npagealloc); 1424 pool_totals.pt_npagealloc += pp->pr_npagealloc; 1425 PRWORD(ovflw, " %*" PRIu64, wide ? 7 : 6, 1, pp->pr_npagefree); 1426 pool_totals.pt_npagefree += pp->pr_npagefree; 1427 PRWORD(ovflw, " %*" PRIu64, 6, 1, pp->pr_npages); 1428 pool_totals.pt_npages += pp->pr_npages; 1429 if (wide) 1430 PRWORD(ovflw, " %*" PRIu64, 7, 1, pp->pr_pagesize); 1431 PRWORD(ovflw, " %*" PRIu64, 6, 1, pp->pr_hiwat); 1432 PRWORD(ovflw, " %*" PRIu64, 6, 1, pp->pr_minpages); 1433 PRWORD(ovflw, " %*s", 6, 1, maxp); 1434 PRWORD(ovflw, " %*" PRIu64, 5, 1, pp->pr_nidle); 1435 if (wide) 1436 PRWORD(ovflw, " 0x%0*" PRIx64, 4, 1, 1437 pp->pr_flags); 1438 1439 this_inuse = pp->pr_nout * pp->pr_size; 1440 this_total = pp->pr_npages * pp->pr_pagesize; 1441 if (pp->pr_flags & PR_RECURSIVE) { 1442 /* 1443 * Don't count in-use memory, since it's part 1444 * of another pool and will be accounted for 1445 * there. 1446 */ 1447 total += (this_total - this_inuse); 1448 } else { 1449 inuse += this_inuse; 1450 total += this_total; 1451 } 1452 if (wide) { 1453 if (this_total == 0) 1454 (void)printf(" ---"); 1455 else 1456 (void)printf(" %5.1f%%", 1457 (100.0 * this_inuse) / this_total); 1458 } 1459 (void)printf("\n"); 1460 } 1461 if (wide) { 1462 snprintf(in_use, sizeof in_use, "%7"PRId64, pool_totals.pt_nout); 1463 snprintf(avail, sizeof avail, "%6"PRId64, pool_totals.pt_nitems); 1464 } else { 1465 in_use[0] = '\0'; 1466 avail[0] = '\0'; 1467 } 1468 (void)printf( 1469 "%-*s%*s%*"PRId64"%5"PRId64"%*"PRId64"%s%s%*"PRId64"%*"PRId64"%6"PRId64"\n", 1470 wide ? 16 : 11, "Totals", 1471 wide ? 6 : 5, "", 1472 wide ? 12 : 9, pool_totals.pt_nget, 1473 pool_totals.pt_nfail, 1474 wide ? 12 : 9, pool_totals.pt_nput, 1475 in_use, 1476 avail, 1477 wide ? 7 : 6, pool_totals.pt_npagealloc, 1478 wide ? 7 : 6, pool_totals.pt_npagefree, 1479 pool_totals.pt_npages); 1480 1481 inuse /= KILO; 1482 total /= KILO; 1483 (void)printf( 1484 "\nIn use %" PRIu64 "K, " 1485 "total allocated %" PRIu64 "K; utilization %.1f%%\n", 1486 inuse, total, (100.0 * inuse) / total); 1487 1488 free(data); 1489} 1490 1491void 1492dopool(int verbose, int wide) 1493{ 1494 int first, ovflw; 1495 void *addr; 1496 long total, inuse, this_total, this_inuse; 1497 struct { 1498 uint64_t pt_nget; 1499 uint64_t pt_nfail; 1500 uint64_t pt_nput; 1501 uint64_t pt_nout; 1502 uint64_t pt_nitems; 1503 uint64_t pt_npagealloc; 1504 uint64_t pt_npagefree; 1505 uint64_t pt_npages; 1506 } pool_totals; 1507 char in_use[8]; 1508 char avail[8]; 1509 TAILQ_HEAD(,pool) pool_head; 1510 struct pool pool, *pp = &pool; 1511 struct pool_allocator pa; 1512 char name[32], maxp[32]; 1513 1514 if (memf == NULL) 1515 return dopool_sysctl(verbose, wide); 1516 1517 memset(&pool_totals, 0, sizeof pool_totals); 1518 kread(namelist, X_POOLHEAD, &pool_head, sizeof(pool_head)); 1519 addr = TAILQ_FIRST(&pool_head); 1520 1521 total = inuse = 0; 1522 1523 for (first = 1; addr != NULL; addr = TAILQ_NEXT(pp, pr_poollist) ) { 1524 deref_kptr(addr, pp, sizeof(*pp), "pool chain trashed"); 1525 deref_kptr(pp->pr_alloc, &pa, sizeof(pa), 1526 "pool allocator trashed"); 1527 deref_kptr(pp->pr_wchan, name, sizeof(name), 1528 "pool wait channel trashed"); 1529 name[sizeof(name)-1] = '\0'; 1530 1531 if (first) { 1532 (void)printf("Memory resource pool statistics\n"); 1533 (void)printf( 1534 "%-*s%*s%*s%5s%*s%s%s%*s%*s%6s%s%6s%6s%6s%5s%s%s\n", 1535 wide ? 16 : 11, "Name", 1536 wide ? 6 : 5, "Size", 1537 wide ? 12 : 9, "Requests", 1538 "Fail", 1539 wide ? 12 : 9, "Releases", 1540 wide ? " InUse" : "", 1541 wide ? " Avail" : "", 1542 wide ? 7 : 6, "Pgreq", 1543 wide ? 7 : 6, "Pgrel", 1544 "Npage", 1545 wide ? " PageSz" : "", 1546 "Hiwat", 1547 "Minpg", 1548 "Maxpg", 1549 "Idle", 1550 wide ? " Flags" : "", 1551 wide ? " Util" : ""); 1552 first = 0; 1553 } 1554 if (pp->pr_nget == 0 && !verbose) 1555 continue; 1556 if (pp->pr_maxpages == UINT_MAX) 1557 (void)snprintf(maxp, sizeof(maxp), "inf"); 1558 else 1559 (void)snprintf(maxp, sizeof(maxp), "%u", 1560 pp->pr_maxpages); 1561 ovflw = 0; 1562 PRWORD(ovflw, "%-*s", wide ? 16 : 11, 0, name); 1563 PRWORD(ovflw, " %*u", wide ? 6 : 5, 1, pp->pr_size); 1564 PRWORD(ovflw, " %*lu", wide ? 12 : 9, 1, pp->pr_nget); 1565 pool_totals.pt_nget += pp->pr_nget; 1566 PRWORD(ovflw, " %*lu", 5, 1, pp->pr_nfail); 1567 pool_totals.pt_nfail += pp->pr_nfail; 1568 PRWORD(ovflw, " %*lu", wide ? 12 : 9, 1, pp->pr_nput); 1569 pool_totals.pt_nput += pp->pr_nput; 1570 if (wide) { 1571 PRWORD(ovflw, " %*u", 7, 1, pp->pr_nout); 1572 pool_totals.pt_nout += pp->pr_nout; 1573 } 1574 if (wide) { 1575 PRWORD(ovflw, " %*u", 6, 1, pp->pr_nitems); 1576 pool_totals.pt_nitems += pp->pr_nitems; 1577 } 1578 PRWORD(ovflw, " %*lu", wide ? 7 : 6, 1, pp->pr_npagealloc); 1579 pool_totals.pt_npagealloc += pp->pr_npagealloc; 1580 PRWORD(ovflw, " %*lu", wide ? 7 : 6, 1, pp->pr_npagefree); 1581 pool_totals.pt_npagefree += pp->pr_npagefree; 1582 PRWORD(ovflw, " %*u", 6, 1, pp->pr_npages); 1583 pool_totals.pt_npages += pp->pr_npages; 1584 if (wide) 1585 PRWORD(ovflw, " %*u", 7, 1, pa.pa_pagesz); 1586 PRWORD(ovflw, " %*u", 6, 1, pp->pr_hiwat); 1587 PRWORD(ovflw, " %*u", 6, 1, pp->pr_minpages); 1588 PRWORD(ovflw, " %*s", 6, 1, maxp); 1589 PRWORD(ovflw, " %*lu", 5, 1, pp->pr_nidle); 1590 if (wide) 1591 PRWORD(ovflw, " 0x%0*x", 4, 1, 1592 pp->pr_flags | pp->pr_roflags); 1593 1594 this_inuse = pp->pr_nout * pp->pr_size; 1595 this_total = pp->pr_npages * pa.pa_pagesz; 1596 if (pp->pr_roflags & PR_RECURSIVE) { 1597 /* 1598 * Don't count in-use memory, since it's part 1599 * of another pool and will be accounted for 1600 * there. 1601 */ 1602 total += (this_total - this_inuse); 1603 } else { 1604 inuse += this_inuse; 1605 total += this_total; 1606 } 1607 if (wide) { 1608 if (this_total == 0) 1609 (void)printf(" ---"); 1610 else 1611 (void)printf(" %5.1f%%", 1612 (100.0 * this_inuse) / this_total); 1613 } 1614 (void)printf("\n"); 1615 } 1616 if (wide) { 1617 snprintf(in_use, sizeof in_use, "%7"PRId64, pool_totals.pt_nout); 1618 snprintf(avail, sizeof avail, "%6"PRId64, pool_totals.pt_nitems); 1619 } else { 1620 in_use[0] = '\0'; 1621 avail[0] = '\0'; 1622 } 1623 (void)printf( 1624 "%-*s%*s%*"PRId64"%5"PRId64"%*"PRId64"%s%s%*"PRId64"%*"PRId64"%6"PRId64"\n", 1625 wide ? 16 : 11, "Totals", 1626 wide ? 6 : 5, "", 1627 wide ? 12 : 9, pool_totals.pt_nget, 1628 pool_totals.pt_nfail, 1629 wide ? 12 : 9, pool_totals.pt_nput, 1630 in_use, 1631 avail, 1632 wide ? 7 : 6, pool_totals.pt_npagealloc, 1633 wide ? 7 : 6, pool_totals.pt_npagefree, 1634 pool_totals.pt_npages); 1635 1636 inuse /= KILO; 1637 total /= KILO; 1638 (void)printf( 1639 "\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n", 1640 inuse, total, (100.0 * inuse) / total); 1641} 1642 1643static void 1644dopoolcache_sysctl(int verbose) 1645{ 1646 struct pool_sysctl *data, *pp; 1647 size_t i, len; 1648 bool first = true; 1649 int ovflw; 1650 uint64_t tot; 1651 double p; 1652 1653 data = asysctlbyname("kern.pool", &len); 1654 if (data == NULL) 1655 err(1, "failed to reead kern.pool"); 1656 len /= sizeof(*data); 1657 1658 for (i = 0; i < len; ++i) { 1659 pp = &data[i]; 1660 if (pp->pr_cache_meta_size == 0) 1661 continue; 1662 1663 if (pp->pr_cache_nmiss_global == 0 && !verbose) 1664 continue; 1665 1666 if (first) { 1667 (void)printf("Pool cache statistics.\n"); 1668 (void)printf("%-*s%*s%*s%*s%*s%*s%*s%*s%*s%*s\n", 1669 12, "Name", 1670 6, "Spin", 1671 6, "GrpSz", 1672 5, "Full", 1673 5, "Emty", 1674 10, "PoolLayer", 1675 11, "CacheLayer", 1676 6, "Hit%", 1677 12, "CpuLayer", 1678 6, "Hit%" 1679 ); 1680 first = false; 1681 } 1682 1683 ovflw = 0; 1684 PRWORD(ovflw, "%-*s", MIN((int)sizeof(pp->pr_wchan), 13), 1, 1685 pp->pr_wchan); 1686 PRWORD(ovflw, " %*" PRIu64, 6, 1, pp->pr_cache_ncontended); 1687 PRWORD(ovflw, " %*" PRIu64, 6, 1, pp->pr_cache_meta_size); 1688 PRWORD(ovflw, " %*" PRIu64, 5, 1, pp->pr_cache_nfull); 1689 PRWORD(ovflw, " %*" PRIu64, 5, 1, pp->pr_cache_nempty); 1690 PRWORD(ovflw, " %*" PRIu64, 10, 1, pp->pr_cache_nmiss_global); 1691 1692 tot = pp->pr_cache_nhit_global + pp->pr_cache_nmiss_global; 1693 p = pp->pr_cache_nhit_global * 100.0 / tot; 1694 PRWORD(ovflw, " %*" PRIu64, 11, 1, tot); 1695 PRWORD(ovflw, " %*.1f", 6, 1, p); 1696 1697 tot = pp->pr_cache_nhit_pcpu + pp->pr_cache_nmiss_pcpu; 1698 p = pp->pr_cache_nhit_pcpu * 100.0 / tot; 1699 PRWORD(ovflw, " %*" PRIu64, 12, 1, tot); 1700 PRWORD(ovflw, " %*.1f", 6, 1, p); 1701 printf("\n"); 1702 } 1703} 1704 1705void 1706dopoolcache(int verbose) 1707{ 1708 struct pool_cache pool_cache, *pc = &pool_cache; 1709 pool_cache_cpu_t cache_cpu, *cc = &cache_cpu; 1710 TAILQ_HEAD(,pool) pool_head; 1711 struct pool pool, *pp = &pool; 1712 char name[32]; 1713 uint64_t cpuhit, cpumiss, tot; 1714 void *addr; 1715 int first, ovflw; 1716 size_t i; 1717 double p; 1718 1719 if (memf == NULL) 1720 return dopoolcache_sysctl(verbose); 1721 1722 kread(namelist, X_POOLHEAD, &pool_head, sizeof(pool_head)); 1723 addr = TAILQ_FIRST(&pool_head); 1724 1725 for (first = 1; addr != NULL; addr = TAILQ_NEXT(pp, pr_poollist) ) { 1726 deref_kptr(addr, pp, sizeof(*pp), "pool chain trashed"); 1727 if (pp->pr_cache == NULL) 1728 continue; 1729 deref_kptr(pp->pr_wchan, name, sizeof(name), 1730 "pool wait channel trashed"); 1731 deref_kptr(pp->pr_cache, pc, sizeof(*pc), "pool cache trashed"); 1732 if (pc->pc_misses == 0 && !verbose) 1733 continue; 1734 name[sizeof(name)-1] = '\0'; 1735 1736 cpuhit = 0; 1737 cpumiss = 0; 1738 for (i = 0; i < __arraycount(pc->pc_cpus); i++) { 1739 if ((addr = pc->pc_cpus[i]) == NULL) 1740 continue; 1741 deref_kptr(addr, cc, sizeof(*cc), 1742 "pool cache cpu trashed"); 1743 cpuhit += cc->cc_hits; 1744 cpumiss += cc->cc_misses; 1745 } 1746 1747 if (first) { 1748 (void)printf("Pool cache statistics.\n"); 1749 (void)printf("%-*s%*s%*s%*s%*s%*s%*s%*s%*s%*s\n", 1750 12, "Name", 1751 6, "Spin", 1752 6, "GrpSz", 1753 5, "Full", 1754 5, "Emty", 1755 10, "PoolLayer", 1756 11, "CacheLayer", 1757 6, "Hit%", 1758 12, "CpuLayer", 1759 6, "Hit%" 1760 ); 1761 first = 0; 1762 } 1763 1764 ovflw = 0; 1765 PRWORD(ovflw, "%-*s", 13, 1, name); 1766 PRWORD(ovflw, " %*llu", 6, 1, (long long)pc->pc_contended); 1767 PRWORD(ovflw, " %*u", 6, 1, pc->pc_pcgsize); 1768 PRWORD(ovflw, " %*u", 5, 1, pc->pc_nfull); 1769 PRWORD(ovflw, " %*u", 5, 1, pc->pc_nempty); 1770 PRWORD(ovflw, " %*llu", 10, 1, (long long)pc->pc_misses); 1771 1772 tot = pc->pc_hits + pc->pc_misses; 1773 p = pc->pc_hits * 100.0 / (tot); 1774 PRWORD(ovflw, " %*llu", 11, 1, (long long)tot); 1775 PRWORD(ovflw, " %*.1f", 6, 1, p); 1776 1777 tot = cpuhit + cpumiss; 1778 p = cpuhit * 100.0 / (tot); 1779 PRWORD(ovflw, " %*llu", 12, 1, (long long)tot); 1780 PRWORD(ovflw, " %*.1f", 6, 1, p); 1781 printf("\n"); 1782 } 1783} 1784 1785enum hashtype { /* from <sys/systm.h> */ 1786 HASH_LIST, 1787 HASH_TAILQ 1788}; 1789 1790struct uidinfo { /* XXX: no kernel header file */ 1791 LIST_ENTRY(uidinfo) ui_hash; 1792 uid_t ui_uid; 1793 long ui_proccnt; 1794}; 1795 1796struct kernel_hash { 1797 const char * description; /* description */ 1798 int hashsize; /* nlist index for hash size */ 1799 int hashtbl; /* nlist index for hash table */ 1800 enum hashtype type; /* type of hash table */ 1801 size_t offset; /* offset of {LIST,TAILQ}_NEXT */ 1802} khashes[] = 1803{ 1804 { 1805 "buffer hash", 1806 X_BUFHASH, X_BUFHASHTBL, 1807 HASH_LIST, offsetof(struct buf, b_hash) 1808 }, { 1809 "ipv4 address -> interface hash", 1810 X_IFADDRHASH, X_IFADDRHASHTBL, 1811 HASH_LIST, offsetof(struct in_ifaddr, ia_hash), 1812 }, { 1813 "name cache hash", 1814 X_NCHASH, X_NCHASHTBL, 1815 HASH_LIST, offsetof(struct namecache, nc_hash), 1816 }, { 1817 "name cache directory hash", 1818 X_NCVHASH, X_NCVHASHTBL, 1819 HASH_LIST, offsetof(struct namecache, nc_vhash), 1820 }, { 1821 "user info (uid -> used processes) hash", 1822 X_UIHASH, X_UIHASHTBL, 1823 HASH_LIST, offsetof(struct uidinfo, ui_hash), 1824 }, { 1825 NULL, -1, -1, 0, 0, 1826 } 1827}; 1828 1829void 1830dohashstat(int verbose, int todo, const char *hashname) 1831{ 1832 LIST_HEAD(, generic) *hashtbl_list; 1833 TAILQ_HEAD(, generic) *hashtbl_tailq; 1834 struct kernel_hash *curhash; 1835 void *hashaddr, *hashbuf, *nhashbuf, *nextaddr; 1836 size_t elemsize, hashbufsize, thissize; 1837 u_long hashsize, i; 1838 int used, items, chain, maxchain; 1839 1840 hashbuf = NULL; 1841 hashbufsize = 0; 1842 1843 if (todo & HASHLIST) { 1844 (void)printf("Supported hashes:\n"); 1845 for (curhash = khashes; curhash->description; curhash++) { 1846 if (hashnl[curhash->hashsize].n_value == 0 || 1847 hashnl[curhash->hashtbl].n_value == 0) 1848 continue; 1849 (void)printf("\t%-16s%s\n", 1850 hashnl[curhash->hashsize].n_name + 1, 1851 curhash->description); 1852 } 1853 return; 1854 } 1855 1856 if (hashname != NULL) { 1857 for (curhash = khashes; curhash->description; curhash++) { 1858 if (strcmp(hashnl[curhash->hashsize].n_name + 1, 1859 hashname) == 0 && 1860 hashnl[curhash->hashsize].n_value != 0 && 1861 hashnl[curhash->hashtbl].n_value != 0) 1862 break; 1863 } 1864 if (curhash->description == NULL) { 1865 warnx("%s: no such hash", hashname); 1866 return; 1867 } 1868 } 1869 1870 (void)printf( 1871 "%-16s %8s %8s %8s %8s %8s %8s\n" 1872 "%-16s %8s %8s %8s %8s %8s %8s\n", 1873 "", "total", "used", "util", "num", "average", "maximum", 1874 "hash table", "buckets", "buckets", "%", "items", "chain", 1875 "chain"); 1876 1877 for (curhash = khashes; curhash->description; curhash++) { 1878 if (hashnl[curhash->hashsize].n_value == 0 || 1879 hashnl[curhash->hashtbl].n_value == 0) 1880 continue; 1881 if (hashname != NULL && 1882 strcmp(hashnl[curhash->hashsize].n_name + 1, hashname)) 1883 continue; 1884 elemsize = curhash->type == HASH_LIST ? 1885 sizeof(*hashtbl_list) : sizeof(*hashtbl_tailq); 1886 deref_kptr((void *)hashnl[curhash->hashsize].n_value, 1887 &hashsize, sizeof(hashsize), 1888 hashnl[curhash->hashsize].n_name); 1889 hashsize++; 1890 deref_kptr((void *)hashnl[curhash->hashtbl].n_value, 1891 &hashaddr, sizeof(hashaddr), 1892 hashnl[curhash->hashtbl].n_name); 1893 if (verbose) 1894 (void)printf( 1895 "%s %lu, %s %p, offset %ld, elemsize %llu\n", 1896 hashnl[curhash->hashsize].n_name + 1, hashsize, 1897 hashnl[curhash->hashtbl].n_name + 1, hashaddr, 1898 (long)curhash->offset, 1899 (unsigned long long)elemsize); 1900 thissize = hashsize * elemsize; 1901 if (hashbuf == NULL || thissize > hashbufsize) { 1902 if ((nhashbuf = realloc(hashbuf, thissize)) == NULL) 1903 errx(1, "malloc hashbuf %llu", 1904 (unsigned long long)hashbufsize); 1905 hashbuf = nhashbuf; 1906 hashbufsize = thissize; 1907 } 1908 deref_kptr(hashaddr, hashbuf, thissize, 1909 hashnl[curhash->hashtbl].n_name); 1910 used = 0; 1911 items = maxchain = 0; 1912 if (curhash->type == HASH_LIST) { 1913 hashtbl_list = hashbuf; 1914 hashtbl_tailq = NULL; 1915 } else { 1916 hashtbl_list = NULL; 1917 hashtbl_tailq = hashbuf; 1918 } 1919 for (i = 0; i < hashsize; i++) { 1920 if (curhash->type == HASH_LIST) 1921 nextaddr = LIST_FIRST(&hashtbl_list[i]); 1922 else 1923 nextaddr = TAILQ_FIRST(&hashtbl_tailq[i]); 1924 if (nextaddr == NULL) 1925 continue; 1926 if (verbose) 1927 (void)printf("%5lu: %p\n", i, nextaddr); 1928 used++; 1929 chain = 0; 1930 do { 1931 chain++; 1932 deref_kptr((char *)nextaddr + curhash->offset, 1933 &nextaddr, sizeof(void *), 1934 "hash chain corrupted"); 1935 if (verbose > 1) 1936 (void)printf("got nextaddr as %p\n", 1937 nextaddr); 1938 } while (nextaddr != NULL); 1939 items += chain; 1940 if (verbose && chain > 1) 1941 (void)printf("\tchain = %d\n", chain); 1942 if (chain > maxchain) 1943 maxchain = chain; 1944 } 1945 (void)printf("%-16s %8ld %8d %8.2f %8d %8.2f %8d\n", 1946 hashnl[curhash->hashsize].n_name + 1, 1947 hashsize, used, used * 100.0 / hashsize, 1948 items, used ? (double)items / used : 0.0, maxchain); 1949 } 1950} 1951 1952/* 1953 * kreadc like kread but returns 1 if sucessful, 0 otherwise 1954 */ 1955int 1956kreadc(struct nlist *nl, int nlx, void *addr, size_t size) 1957{ 1958 const char *sym; 1959 1960 sym = nl[nlx].n_name; 1961 if (*sym == '_') 1962 ++sym; 1963 if (nl[nlx].n_type == 0 || nl[nlx].n_value == 0) 1964 return 0; 1965 deref_kptr((void *)nl[nlx].n_value, addr, size, sym); 1966 return 1; 1967} 1968 1969/* 1970 * kread reads something from the kernel, given its nlist index in namelist[]. 1971 */ 1972void 1973kread(struct nlist *nl, int nlx, void *addr, size_t size) 1974{ 1975 const char *sym; 1976 1977 sym = nl[nlx].n_name; 1978 if (*sym == '_') 1979 ++sym; 1980 if (nl[nlx].n_type == 0 || nl[nlx].n_value == 0) 1981 errx(1, "symbol %s not defined", sym); 1982 deref_kptr((void *)nl[nlx].n_value, addr, size, sym); 1983} 1984 1985/* 1986 * Dereference the kernel pointer `kptr' and fill in the local copy 1987 * pointed to by `ptr'. The storage space must be pre-allocated, 1988 * and the size of the copy passed in `len'. 1989 */ 1990void 1991deref_kptr(const void *kptr, void *ptr, size_t len, const char *msg) 1992{ 1993 1994 if (*msg == '_') 1995 msg++; 1996 if ((size_t)kvm_read(kd, (u_long)kptr, (char *)ptr, len) != len) 1997 errx(1, "kptr %lx: %s: %s", (u_long)kptr, msg, kvm_geterr(kd)); 1998} 1999 2000/* 2001 * Traverse the kernel history buffers, performing the requested action. 2002 * 2003 * Note, we assume that if we're not listing, we're dumping. 2004 */ 2005void 2006hist_traverse(int todo, const char *histname) 2007{ 2008 struct kern_history_head histhead; 2009 struct kern_history hist, *histkva; 2010 char *name = NULL; 2011 size_t namelen = 0; 2012 2013 if (histnl[0].n_value == 0) { 2014 warnx("kernel history is not compiled into the kernel."); 2015 return; 2016 } 2017 2018 deref_kptr((void *)histnl[X_KERN_HISTORIES].n_value, &histhead, 2019 sizeof(histhead), histnl[X_KERN_HISTORIES].n_name); 2020 2021 if (histhead.lh_first == NULL) { 2022 warnx("No active kernel history logs."); 2023 return; 2024 } 2025 2026 if (todo & HISTLIST) 2027 (void)printf("Active kernel histories:"); 2028 2029 for (histkva = LIST_FIRST(&histhead); histkva != NULL; 2030 histkva = LIST_NEXT(&hist, list)) { 2031 deref_kptr(histkva, &hist, sizeof(hist), "histkva"); 2032 if (name == NULL || hist.namelen > namelen) { 2033 if (name != NULL) 2034 free(name); 2035 namelen = hist.namelen; 2036 if ((name = malloc(namelen + 1)) == NULL) 2037 err(1, "malloc history name"); 2038 } 2039 2040 deref_kptr(hist.name, name, namelen, "history name"); 2041 name[namelen] = '\0'; 2042 if (todo & HISTLIST) 2043 (void)printf(" %s", name); 2044 else { 2045 /* 2046 * If we're dumping all histories, do it, else 2047 * check to see if this is the one we want. 2048 */ 2049 if (histname == NULL || strcmp(histname, name) == 0) { 2050 if (histname == NULL) 2051 (void)printf( 2052 "\nkernel history `%s':\n", name); 2053 hist_dodump(&hist); 2054 } 2055 } 2056 } 2057 2058 if (todo & HISTLIST) 2059 (void)putchar('\n'); 2060 2061 if (name != NULL) 2062 free(name); 2063} 2064 2065/* 2066 * Actually dump the history buffer at the specified KVA. 2067 */ 2068void 2069hist_dodump(struct kern_history *histp) 2070{ 2071 struct kern_history_ent *histents, *e; 2072 struct timeval tv; 2073 size_t histsize; 2074 char *fmt = NULL, *fn = NULL; 2075 size_t fmtlen = 0, fnlen = 0; 2076 unsigned i; 2077 2078 histsize = sizeof(struct kern_history_ent) * histp->n; 2079 2080 if ((histents = malloc(histsize)) == NULL) 2081 err(1, "malloc history entries"); 2082 2083 (void)memset(histents, 0, histsize); 2084 2085 (void)printf("%"PRIu32" entries, next is %"PRIu32"\n", 2086 histp->n, histp->f); 2087 2088 deref_kptr(histp->e, histents, histsize, "history entries"); 2089 i = histp->f; 2090 do { 2091 e = &histents[i]; 2092 if (e->fmt != NULL) { 2093 if (fmt == NULL || e->fmtlen > fmtlen) { 2094 if (fmt != NULL) 2095 free(fmt); 2096 fmtlen = e->fmtlen; 2097 if ((fmt = malloc(fmtlen + 1)) == NULL) 2098 err(1, "malloc printf format"); 2099 } 2100 if (fn == NULL || e->fnlen > fnlen) { 2101 if (fn != NULL) 2102 free(fn); 2103 fnlen = e->fnlen; 2104 if ((fn = malloc(fnlen + 1)) == NULL) 2105 err(1, "malloc function name"); 2106 } 2107 2108 deref_kptr(e->fmt, fmt, fmtlen, "printf format"); 2109 fmt[fmtlen] = '\0'; 2110 2111 deref_kptr(e->fn, fn, fnlen, "function name"); 2112 fn[fnlen] = '\0'; 2113 2114 bintime2timeval(&e->bt, &tv); 2115 (void)printf("%06ld.%06ld ", (long int)tv.tv_sec, 2116 (long int)tv.tv_usec); 2117 (void)printf("%s#%ld@%d: ", fn, e->call, e->cpunum); 2118 (void)printf(fmt, e->v[0], e->v[1], e->v[2], e->v[3]); 2119 (void)putchar('\n'); 2120 } 2121 i = (i + 1) % histp->n; 2122 } while (i != histp->f); 2123 2124 free(histents); 2125 if (fmt != NULL) 2126 free(fmt); 2127 if (fn != NULL) 2128 free(fn); 2129} 2130 2131void 2132hist_traverse_sysctl(int todo, const char *histname) 2133{ 2134 int error; 2135 int mib[4]; 2136 unsigned int i; 2137 size_t len, miblen; 2138 struct sysctlnode query, histnode[32]; 2139 2140 /* retrieve names of available histories */ 2141 miblen = __arraycount(mib); 2142 error = sysctlnametomib("kern.hist", mib, &miblen); 2143 if (error != 0) { 2144 if (errno == ENOENT) { 2145 warnx("kernel history is not compiled into the kernel."); 2146 return; 2147 } else 2148 err(EXIT_FAILURE, "nametomib failed"); 2149 } 2150 2151 /* get the list of nodenames below kern.hist */ 2152 mib[2] = CTL_QUERY; 2153 memset(&query, 0, sizeof(query)); 2154 query.sysctl_flags = SYSCTL_VERSION; 2155 len = sizeof(histnode); 2156 error = sysctl(mib, 3, &histnode[0], &len, &query, sizeof(query)); 2157 if (error != 0) { 2158 err(1, "query failed"); 2159 return; 2160 } 2161 if (len == 0) { 2162 warnx("No active kernel history logs."); 2163 return; 2164 } 2165 2166 len = len / sizeof(histnode[0]); /* get # of entries returned */ 2167 2168 if (todo & HISTLIST) 2169 (void)printf("Active kernel histories:"); 2170 2171 for (i = 0; i < len; i++) { 2172 if (todo & HISTLIST) 2173 (void)printf(" %s", histnode[i].sysctl_name); 2174 else { 2175 /* 2176 * If we're dumping all histories, do it, else 2177 * check to see if this is the one we want. 2178 */ 2179 if (histname == NULL || 2180 strcmp(histname, histnode[i].sysctl_name) == 0) { 2181 if (histname == NULL) 2182 (void)printf( 2183 "\nkernel history `%s':\n", 2184 histnode[i].sysctl_name); 2185 mib[2] = histnode[i].sysctl_num; 2186 mib[3] = CTL_EOL; 2187 hist_dodump_sysctl(mib, 4); 2188 } 2189 } 2190 } 2191 2192 if (todo & HISTLIST) 2193 (void)putchar('\n'); 2194 } 2195 2196 /* 2197 * Actually dump the history buffer at the specified KVA. 2198 */ 2199 void 2200hist_dodump_sysctl(int mib[], unsigned int miblen) 2201 { 2202 struct sysctl_history *hist; 2203 struct timeval tv; 2204 struct sysctl_history_event *e; 2205 size_t histsize; 2206 char *strp; 2207 unsigned i; 2208 char *fmt = NULL, *fn = NULL; 2209 2210 hist = NULL; 2211 histsize = 0; 2212 do { 2213 errno = 0; 2214 if (sysctl(mib, miblen, hist, &histsize, NULL, 0) == 0) 2215 break; 2216 if (errno != ENOMEM) 2217 break; 2218 if ((hist = realloc(hist, histsize)) == NULL) 2219 errx(1, "realloc history buffer"); 2220 } while (errno == ENOMEM); 2221 if (errno != 0) 2222 err(1, "sysctl failed"); 2223 2224 strp = (char *)(&hist->sh_events[hist->sh_listentry.shle_numentries]); 2225 2226 (void)printf("%"PRIu32" entries, next is %"PRIu32"\n", 2227 hist->sh_listentry.shle_numentries, 2228 hist->sh_listentry.shle_nextfree); 2229 2230 i = hist->sh_listentry.shle_nextfree; 2231 2232 do { 2233 e = &hist->sh_events[i]; 2234 if (e->she_fmtoffset != 0) { 2235 fmt = &strp[e->she_fmtoffset]; 2236 fn = &strp[e->she_funcoffset]; 2237 bintime2timeval(&e->she_bintime, &tv); 2238 (void)printf("%06ld.%06ld %s#%"PRIu64"@%"PRIu32": ", 2239 (long int)tv.tv_sec, (long int)tv.tv_usec, 2240 fn, e->she_callnumber, e->she_cpunum); 2241 (void)printf(fmt, e->she_values[0], e->she_values[1], 2242 e->she_values[2], e->she_values[3]); 2243 (void)putchar('\n'); 2244 } 2245 i = (i + 1) % hist->sh_listentry.shle_numentries; 2246 } while (i != hist->sh_listentry.shle_nextfree); 2247 2248 free(hist); 2249 } 2250 2251static void 2252usage(void) 2253{ 2254 2255 (void)fprintf(stderr, 2256 "usage: %s [-CefHiLlmstUvW] [-c count] [-h hashname] [-M core] [-N system]\n" 2257 "\t\t[-u histname] [-w wait] [disks]\n", getprogname()); 2258 exit(1); 2259} 2260