vmstat.c revision 1.206.2.1
1 /* $NetBSD: vmstat.c,v 1.206.2.1 2016/11/04 14:49:26 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 71 static char sccsid[] = "@(#)vmstat.c 8.2 (Berkeley) 3/1/95"; 72 #else 73 __RCSID("$NetBSD: vmstat.c,v 1.206.2.1 2016/11/04 14:49:26 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> 138 struct cpu_info { 139 struct cpu_data ci_data; 140 }; 141 #else 142 # include <sys/cpu.h> 143 #endif 144 145 /* 146 * General namelist 147 */ 148 struct 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 */ 177 struct 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 */ 195 struct 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 */ 232 struct 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 241 242 struct 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; 250 251 struct uvmexp_sysctl uvmexp, ouvmexp; 252 int ndrives; 253 254 int winlines = 20; 255 256 kvm_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) 287 288 void cpustats(int *); 289 void cpucounters(struct cpu_counter *); 290 void deref_kptr(const void *, void *, size_t, const char *); 291 void drvstats(int *); 292 void doevcnt(int verbose, int type); 293 void dohashstat(int, int, const char *); 294 void dointr(int verbose); 295 void dopool(int, int); 296 void dopoolcache(int); 297 void dosum(void); 298 void dovmstat(struct timespec *, int); 299 void print_total_hdr(void); 300 void dovmtotal(struct timespec *, int); 301 void kread(struct nlist *, int, void *, size_t); 302 int kreadc(struct nlist *, int, void *, size_t); 303 void needhdr(int); 304 void getnlist(int); 305 long getuptime(void); 306 void printhdr(void); 307 long pct(u_long, u_long); 308 __dead static void usage(void); 309 void doforkst(void); 310 311 void hist_traverse(int, const char *); 312 void hist_dodump(struct kern_history *); 313 314 int main(int, char **); 315 char **choosedrives(char **); 316 317 /* Namelist and memory file names. */ 318 char *nlistf, *memf; 319 320 /* allow old usage [vmstat 1] */ 321 #define BACKWARD_COMPATIBILITY 322 323 static const int clockrate_mib[] = { CTL_KERN, KERN_CLOCKRATE }; 324 static const int vmmeter_mib[] = { CTL_VM, VM_METER }; 325 static const int uvmexp2_mib[] = { CTL_VM, VM_UVMEXP2 }; 326 static const int boottime_mib[] = { CTL_KERN, KERN_BOOTTIME }; 327 static char kvm_errbuf[_POSIX2_LINE_MAX]; 328 329 int 330 main(int argc, char *argv[]) 331 { 332 int c, todo, verbose, wide; 333 struct timespec interval; 334 int reps; 335 gid_t egid = getegid(); 336 const char *histname, *hashname; 337 338 histname = hashname = NULL; 339 (void)setegid(getgid()); 340 memf = nlistf = NULL; 341 reps = todo = verbose = wide = 0; 342 interval.tv_sec = 0; 343 interval.tv_nsec = 0; 344 while ((c = getopt(argc, argv, "Cc:efh:HilLM:mN:stu:UvWw:")) != -1) { 345 switch (c) { 346 case 'c': 347 reps = atoi(optarg); 348 break; 349 case 'C': 350 todo |= POOLCACHESTAT; 351 break; 352 case 'e': 353 todo |= EVCNTSTAT; 354 break; 355 case 'f': 356 todo |= FORKSTAT; 357 break; 358 case 'h': 359 hashname = optarg; 360 /* FALLTHROUGH */ 361 case 'H': 362 todo |= HASHSTAT; 363 break; 364 case 'i': 365 todo |= INTRSTAT; 366 break; 367 case 'l': 368 todo |= HISTLIST; 369 break; 370 case 'L': 371 todo |= HASHLIST; 372 break; 373 case 'M': 374 memf = optarg; 375 break; 376 case 'm': 377 todo |= MEMSTAT; 378 break; 379 case 'N': 380 nlistf = optarg; 381 break; 382 case 's': 383 todo |= SUMSTAT; 384 break; 385 case 't': 386 todo |= VMTOTAL; 387 break; 388 case 'u': 389 histname = optarg; 390 /* FALLTHROUGH */ 391 case 'U': 392 todo |= HISTDUMP; 393 break; 394 case 'v': 395 verbose++; 396 break; 397 case 'W': 398 wide++; 399 break; 400 case 'w': 401 interval.tv_sec = atol(optarg); 402 break; 403 case '?': 404 default: 405 usage(); 406 } 407 } 408 argc -= optind; 409 argv += optind; 410 411 if (todo == 0) 412 todo = VMSTAT; 413 414 /* 415 * Discard setgid privileges. If not the running kernel, we toss 416 * them away totally so that bad guys can't print interesting stuff 417 * from kernel memory, otherwise switch back to kmem for the 418 * duration of the kvm_openfiles() call. 419 */ 420 if (nlistf != NULL || memf != NULL) 421 (void)setgid(getgid()); 422 else 423 (void)setegid(egid); 424 425 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, kvm_errbuf); 426 if (kd == NULL) { 427 if (nlistf != NULL || memf != NULL) { 428 errx(1, "kvm_openfiles: %s", kvm_errbuf); 429 } 430 } 431 432 if (nlistf == NULL && memf == NULL) 433 (void)setgid(getgid()); 434 435 436 if (todo & VMSTAT) { 437 struct winsize winsize; 438 439 (void)drvinit(0);/* Initialize disk stats, no disks selected. */ 440 441 (void)setgid(getgid()); /* don't need privs anymore */ 442 443 argv = choosedrives(argv); /* Select disks. */ 444 winsize.ws_row = 0; 445 (void)ioctl(STDOUT_FILENO, TIOCGWINSZ, &winsize); 446 if (winsize.ws_row > 0) 447 winlines = winsize.ws_row; 448 449 } 450 451 #ifdef BACKWARD_COMPATIBILITY 452 if (*argv) { 453 interval.tv_sec = atol(*argv); 454 if (*++argv) 455 reps = atoi(*argv); 456 } 457 #endif 458 459 if (interval.tv_sec) { 460 if (!reps) 461 reps = -1; 462 } else if (reps) 463 interval.tv_sec = 1; 464 465 466 getnlist(todo); 467 /* 468 * Statistics dumping is incompatible with the default 469 * VMSTAT/dovmstat() output. So perform the interval/reps handling 470 * for it here. 471 */ 472 if ((todo & (VMSTAT|VMTOTAL)) == 0) { 473 for (;;) { 474 if (todo & (HISTLIST|HISTDUMP)) { 475 if ((todo & (HISTLIST|HISTDUMP)) == 476 (HISTLIST|HISTDUMP)) 477 errx(1, "you may list or dump," 478 " but not both!"); 479 hist_traverse(todo, histname); 480 (void)putchar('\n'); 481 } 482 if (todo & FORKSTAT) { 483 doforkst(); 484 (void)putchar('\n'); 485 } 486 if (todo & MEMSTAT) { 487 dopool(verbose, wide); 488 (void)putchar('\n'); 489 } 490 if (todo & POOLCACHESTAT) { 491 dopoolcache(verbose); 492 (void)putchar('\n'); 493 } 494 if (todo & SUMSTAT) { 495 dosum(); 496 (void)putchar('\n'); 497 } 498 if (todo & INTRSTAT) { 499 dointr(verbose); 500 (void)putchar('\n'); 501 } 502 if (todo & EVCNTSTAT) { 503 doevcnt(verbose, EVCNT_TYPE_ANY); 504 (void)putchar('\n'); 505 } 506 if (todo & (HASHLIST|HASHSTAT)) { 507 if ((todo & (HASHLIST|HASHSTAT)) == 508 (HASHLIST|HASHSTAT)) 509 errx(1, "you may list or display," 510 " but not both!"); 511 dohashstat(verbose, todo, hashname); 512 (void)putchar('\n'); 513 } 514 515 fflush(stdout); 516 if (reps >= 0 && --reps <=0) 517 break; 518 (void)nanosleep(&interval, NULL); 519 } 520 } else { 521 if ((todo & (VMSTAT|VMTOTAL)) == (VMSTAT|VMTOTAL)) { 522 errx(1, "you may not both do vmstat and vmtotal"); 523 } 524 if (todo & VMSTAT) 525 dovmstat(&interval, reps); 526 if (todo & VMTOTAL) 527 dovmtotal(&interval, reps); 528 } 529 return 0; 530 } 531 532 void 533 getnlist(int todo) 534 { 535 static int namelist_done = 0; 536 static int done = 0; 537 int c; 538 size_t i; 539 540 if (kd == NULL) 541 errx(1, "kvm_openfiles: %s", kvm_errbuf); 542 543 if (!namelist_done) { 544 namelist_done = 1; 545 if ((c = kvm_nlist(kd, namelist)) != 0) { 546 int doexit = 0; 547 if (c == -1) 548 errx(1, "kvm_nlist: %s %s", 549 "namelist", kvm_geterr(kd)); 550 for (i = 0; i < __arraycount(namelist)-1; i++) 551 if (namelist[i].n_type == 0 && 552 i != X_TIME_SECOND && 553 i != X_TIME) { 554 if (doexit++ == 0) 555 (void)fprintf(stderr, 556 "%s: undefined symbols:", 557 getprogname()); 558 (void)fprintf(stderr, " %s", 559 namelist[i].n_name); 560 } 561 if (doexit) { 562 (void)fputc('\n', stderr); 563 exit(1); 564 } 565 } 566 } 567 if ((todo & (SUMSTAT|INTRSTAT)) && !(done & (SUMSTAT|INTRSTAT))) { 568 done |= SUMSTAT|INTRSTAT; 569 (void) kvm_nlist(kd, intrnl); 570 } 571 if ((todo & (HASHLIST|HASHSTAT)) && !(done & (HASHLIST|HASHSTAT))) { 572 done |= HASHLIST|HASHSTAT; 573 if ((c = kvm_nlist(kd, hashnl)) == -1 || c == X_HASHNL_SIZE) 574 errx(1, "kvm_nlist: %s %s", "hashnl", kvm_geterr(kd)); 575 } 576 if ((todo & (HISTLIST|HISTDUMP)) && !(done & (HISTLIST|HISTDUMP))) { 577 done |= HISTLIST|HISTDUMP; 578 if (kvm_nlist(kd, histnl) == -1) 579 errx(1, "kvm_nlist: %s %s", "histnl", kvm_geterr(kd)); 580 } 581 } 582 583 char ** 584 choosedrives(char **argv) 585 { 586 size_t i; 587 588 /* 589 * Choose drives to be displayed. Priority goes to (in order) drives 590 * supplied as arguments, default drives. If everything isn't filled 591 * in and there are drives not taken care of, display the first few 592 * that fit. 593 */ 594 #define BACKWARD_COMPATIBILITY 595 for (ndrives = 0; *argv; ++argv) { 596 #ifdef BACKWARD_COMPATIBILITY 597 if (isdigit((unsigned char)**argv)) 598 break; 599 #endif 600 for (i = 0; i < ndrive; i++) { 601 if (strcmp(dr_name[i], *argv)) 602 continue; 603 drv_select[i] = 1; 604 ++ndrives; 605 break; 606 } 607 } 608 for (i = 0; i < ndrive && ndrives < 2; i++) { 609 if (drv_select[i]) 610 continue; 611 drv_select[i] = 1; 612 ++ndrives; 613 } 614 615 return (argv); 616 } 617 618 long 619 getuptime(void) 620 { 621 static struct timespec boottime; 622 struct timespec now; 623 time_t uptime, nowsec; 624 625 if (memf == NULL) { 626 if (boottime.tv_sec == 0) { 627 size_t buflen = sizeof(boottime); 628 if (sysctl(boottime_mib, __arraycount(boottime_mib), 629 &boottime, &buflen, NULL, 0) == -1) 630 warn("Can't get boottime"); 631 } 632 clock_gettime(CLOCK_REALTIME, &now); 633 } else { 634 if (boottime.tv_sec == 0) 635 kread(namelist, X_BOOTTIME, &boottime, 636 sizeof(boottime)); 637 if (kreadc(namelist, X_TIME_SECOND, &nowsec, sizeof(nowsec))) { 638 /* 639 * XXX this assignment dance can be removed once 640 * timeval tv_sec is SUS mandated time_t 641 */ 642 now.tv_sec = nowsec; 643 now.tv_nsec = 0; 644 } else { 645 kread(namelist, X_TIME, &now, sizeof(now)); 646 } 647 } 648 uptime = now.tv_sec - boottime.tv_sec; 649 if (uptime <= 0 || uptime > 60*60*24*365*10) 650 errx(1, "time makes no sense; namelist must be wrong."); 651 return (uptime); 652 } 653 654 int hz, hdrcnt; 655 656 void 657 print_total_hdr(void) 658 { 659 660 (void)printf("procs memory\n"); 661 (void)printf("ru dw pw sl"); 662 (void)printf(" total-v active-v active-r"); 663 (void)printf(" vm-sh avm-sh rm-sh arm-sh free\n"); 664 hdrcnt = winlines - 2; 665 } 666 667 void 668 dovmtotal(struct timespec *interval, int reps) 669 { 670 struct vmtotal total; 671 size_t size; 672 673 (void)signal(SIGCONT, needhdr); 674 675 for (hdrcnt = 1;;) { 676 if (!--hdrcnt) 677 print_total_hdr(); 678 if (memf != NULL) { 679 warnx("Unable to get vmtotals from crash dump."); 680 (void)memset(&total, 0, sizeof(total)); 681 } else { 682 size = sizeof(total); 683 if (sysctl(vmmeter_mib, __arraycount(vmmeter_mib), 684 &total, &size, NULL, 0) == -1) { 685 warn("Can't get vmtotals"); 686 (void)memset(&total, 0, sizeof(total)); 687 } 688 } 689 (void)printf("%2d ", total.t_rq); 690 (void)printf("%2d ", total.t_dw); 691 (void)printf("%2d ", total.t_pw); 692 (void)printf("%2d ", total.t_sl); 693 694 (void)printf("%9d ", total.t_vm); 695 (void)printf("%9d ", total.t_avm); 696 (void)printf("%9d ", total.t_arm); 697 (void)printf("%5d ", total.t_vmshr); 698 (void)printf("%6d ", total.t_avmshr); 699 (void)printf("%5d ", total.t_rmshr); 700 (void)printf("%6d ", total.t_armshr); 701 (void)printf("%5d", total.t_free); 702 703 (void)putchar('\n'); 704 705 (void)fflush(stdout); 706 if (reps >= 0 && --reps <= 0) 707 break; 708 709 (void)nanosleep(interval, NULL); 710 } 711 } 712 713 void 714 dovmstat(struct timespec *interval, int reps) 715 { 716 struct vmtotal total; 717 time_t uptime, halfuptime; 718 size_t size; 719 int pagesize = getpagesize(); 720 int ovflw; 721 722 uptime = getuptime(); 723 halfuptime = uptime / 2; 724 (void)signal(SIGCONT, needhdr); 725 726 if (memf != NULL) { 727 if (namelist[X_STATHZ].n_type != 0 && namelist[X_STATHZ].n_value != 0) 728 kread(namelist, X_STATHZ, &hz, sizeof(hz)); 729 if (!hz) 730 kread(namelist, X_HZ, &hz, sizeof(hz)); 731 } else { 732 struct clockinfo clockinfo; 733 size = sizeof(clockinfo); 734 if (sysctl(clockrate_mib, 2, &clockinfo, &size, NULL, 0) == -1) 735 err(1, "sysctl kern.clockrate failed"); 736 hz = clockinfo.stathz; 737 if (!hz) 738 hz = clockinfo.hz; 739 } 740 741 for (hdrcnt = 1;;) { 742 if (!--hdrcnt) 743 printhdr(); 744 /* Read new disk statistics */ 745 cpureadstats(); 746 drvreadstats(); 747 tkreadstats(); 748 if (memf != NULL) { 749 struct uvmexp uvmexp_kernel; 750 /* 751 * XXX Can't do this if we're reading a crash 752 * XXX dump because they're lazily-calculated. 753 */ 754 warnx("Unable to get vmtotals from crash dump."); 755 (void)memset(&total, 0, sizeof(total)); 756 kread(namelist, X_UVMEXP, &uvmexp_kernel, sizeof(uvmexp_kernel)); 757 #define COPY(field) uvmexp.field = uvmexp_kernel.field 758 COPY(pdreact); 759 COPY(pageins); 760 COPY(pgswapout); 761 COPY(pdfreed); 762 COPY(pdscans); 763 #undef COPY 764 } else { 765 size = sizeof(total); 766 if (sysctl(vmmeter_mib, __arraycount(vmmeter_mib), 767 &total, &size, NULL, 0) == -1) { 768 warn("Can't get vmtotals"); 769 (void)memset(&total, 0, sizeof(total)); 770 } 771 size = sizeof(uvmexp); 772 if (sysctl(uvmexp2_mib, __arraycount(uvmexp2_mib), &uvmexp, 773 &size, NULL, 0) == -1) 774 warn("sysctl vm.uvmexp2 failed"); 775 } 776 cpucounters(&cpucounter); 777 ovflw = 0; 778 PRWORD(ovflw, " %*d", 2, 1, total.t_rq - 1); 779 PRWORD(ovflw, " %*d", 2, 1, total.t_dw + total.t_pw); 780 #define pgtok(a) (long)((a) * ((uint32_t)pagesize >> 10)) 781 #define rate(x) (u_long)(((x) + halfuptime) / uptime) /* round */ 782 PRWORD(ovflw, " %*ld", 9, 1, pgtok(total.t_avm)); 783 PRWORD(ovflw, " %*ld", 7, 1, pgtok(total.t_free)); 784 PRWORD(ovflw, " %*ld", 5, 1, 785 rate(cpucounter.nfault - ocpucounter.nfault)); 786 PRWORD(ovflw, " %*ld", 4, 1, 787 rate(uvmexp.pdreact - ouvmexp.pdreact)); 788 PRWORD(ovflw, " %*ld", 4, 1, 789 rate(uvmexp.pageins - ouvmexp.pageins)); 790 PRWORD(ovflw, " %*ld", 5, 1, 791 rate(uvmexp.pgswapout - ouvmexp.pgswapout)); 792 PRWORD(ovflw, " %*ld", 5, 1, 793 rate(uvmexp.pdfreed - ouvmexp.pdfreed)); 794 PRWORD(ovflw, " %*ld", 6, 2, 795 rate(uvmexp.pdscans - ouvmexp.pdscans)); 796 drvstats(&ovflw); 797 PRWORD(ovflw, " %*ld", 5, 1, 798 rate(cpucounter.nintr - ocpucounter.nintr)); 799 PRWORD(ovflw, " %*ld", 5, 1, 800 rate(cpucounter.nsyscall - ocpucounter.nsyscall)); 801 PRWORD(ovflw, " %*ld", 4, 1, 802 rate(cpucounter.nswtch - ocpucounter.nswtch)); 803 cpustats(&ovflw); 804 (void)putchar('\n'); 805 (void)fflush(stdout); 806 if (reps >= 0 && --reps <= 0) 807 break; 808 ouvmexp = uvmexp; 809 ocpucounter = cpucounter; 810 uptime = interval->tv_sec; 811 /* 812 * We round upward to avoid losing low-frequency events 813 * (i.e., >= 1 per interval but < 1 per second). 814 */ 815 halfuptime = uptime == 1 ? 0 : (uptime + 1) / 2; 816 (void)nanosleep(interval, NULL); 817 } 818 } 819 820 void 821 printhdr(void) 822 { 823 size_t i; 824 825 (void)printf(" procs memory page%*s", 23, ""); 826 if (ndrives > 0) 827 (void)printf("%s %*sfaults cpu\n", 828 ((ndrives > 1) ? "disks" : "disk"), 829 ((ndrives > 1) ? ndrives * 3 - 4 : 0), ""); 830 else 831 (void)printf("%*s faults cpu\n", 832 ndrives * 3, ""); 833 834 (void)printf(" r b avm fre flt re pi po fr sr "); 835 for (i = 0; i < ndrive; i++) 836 if (drv_select[i]) 837 (void)printf("%c%c ", dr_name[i][0], 838 dr_name[i][strlen(dr_name[i]) - 1]); 839 (void)printf(" in sy cs us sy id\n"); 840 hdrcnt = winlines - 2; 841 } 842 843 /* 844 * Force a header to be prepended to the next output. 845 */ 846 void 847 /*ARGSUSED*/ 848 needhdr(int dummy) 849 { 850 851 hdrcnt = 1; 852 } 853 854 long 855 pct(u_long top, u_long bot) 856 { 857 long ans; 858 859 if (bot == 0) 860 return (0); 861 ans = (long)((quad_t)top * 100 / bot); 862 return (ans); 863 } 864 865 #define PCT(top, bot) (int)pct((u_long)(top), (u_long)(bot)) 866 867 void 868 dosum(void) 869 { 870 struct nchstats nch_stats; 871 uint64_t nchtotal; 872 size_t ssize; 873 int active_kernel; 874 struct cpu_counter cc; 875 876 /* 877 * The "active" and "inactive" variables 878 * are now estimated by the kernel and sadly 879 * can not easily be dug out of a crash dump. 880 */ 881 ssize = sizeof(uvmexp); 882 memset(&uvmexp, 0, ssize); 883 active_kernel = (memf == NULL); 884 if (active_kernel) { 885 /* only on active kernel */ 886 if (sysctl(uvmexp2_mib, __arraycount(uvmexp2_mib), &uvmexp, 887 &ssize, NULL, 0) == -1) 888 warn("sysctl vm.uvmexp2 failed"); 889 } else { 890 struct uvmexp uvmexp_kernel; 891 kread(namelist, X_UVMEXP, &uvmexp_kernel, sizeof(uvmexp_kernel)); 892 #define COPY(field) uvmexp.field = uvmexp_kernel.field 893 COPY(pagesize); 894 COPY(ncolors); 895 COPY(npages); 896 COPY(free); 897 COPY(paging); 898 COPY(wired); 899 COPY(zeropages); 900 COPY(reserve_pagedaemon); 901 COPY(reserve_kernel); 902 COPY(anonpages); 903 COPY(filepages); 904 COPY(execpages); 905 COPY(freemin); 906 COPY(freetarg); 907 COPY(wiredmax); 908 COPY(nswapdev); 909 COPY(swpages); 910 COPY(swpginuse); 911 COPY(nswget); 912 COPY(pageins); 913 COPY(pdpageouts); 914 COPY(pgswapin); 915 COPY(pgswapout); 916 COPY(forks); 917 COPY(forks_ppwait); 918 COPY(forks_sharevm); 919 COPY(pga_zerohit); 920 COPY(pga_zeromiss); 921 COPY(zeroaborts); 922 COPY(colorhit); 923 COPY(colormiss); 924 COPY(cpuhit); 925 COPY(cpumiss); 926 COPY(fltnoram); 927 COPY(fltnoanon); 928 COPY(fltpgwait); 929 COPY(fltpgrele); 930 COPY(fltrelck); 931 COPY(fltrelckok); 932 COPY(fltanget); 933 COPY(fltanretry); 934 COPY(fltamcopy); 935 COPY(fltamcopy); 936 COPY(fltnomap); 937 COPY(fltlget); 938 COPY(fltget); 939 COPY(flt_anon); 940 COPY(flt_acow); 941 COPY(flt_obj); 942 COPY(flt_prcopy); 943 COPY(flt_przero); 944 COPY(pdwoke); 945 COPY(pdrevs); 946 COPY(pdfreed); 947 COPY(pdscans); 948 COPY(pdanscan); 949 COPY(pdobscan); 950 COPY(pdreact); 951 COPY(pdbusy); 952 COPY(pdpending); 953 COPY(pddeact); 954 #undef COPY 955 } 956 957 958 (void)printf("%9" PRIu64 " bytes per page\n", uvmexp.pagesize); 959 960 (void)printf("%9" PRIu64 " page color%s\n", 961 uvmexp.ncolors, uvmexp.ncolors == 1 ? "" : "s"); 962 963 (void)printf("%9" PRIu64 " pages managed\n", uvmexp.npages); 964 (void)printf("%9" PRIu64 " pages free\n", uvmexp.free); 965 if (active_kernel) { 966 (void)printf("%9" PRIu64 " pages active\n", uvmexp.active); 967 (void)printf("%9" PRIu64 " pages inactive\n", uvmexp.inactive); 968 } 969 (void)printf("%9" PRIu64 " pages paging\n", uvmexp.paging); 970 (void)printf("%9" PRIu64 " pages wired\n", uvmexp.wired); 971 (void)printf("%9" PRIu64 " zero pages\n", uvmexp.zeropages); 972 (void)printf("%9" PRIu64 " reserve pagedaemon pages\n", 973 uvmexp.reserve_pagedaemon); 974 (void)printf("%9" PRIu64 " reserve kernel pages\n", uvmexp.reserve_kernel); 975 (void)printf("%9" PRIu64 " anonymous pages\n", uvmexp.anonpages); 976 (void)printf("%9" PRIu64 " cached file pages\n", uvmexp.filepages); 977 (void)printf("%9" PRIu64 " cached executable pages\n", uvmexp.execpages); 978 979 (void)printf("%9" PRIu64 " minimum free pages\n", uvmexp.freemin); 980 (void)printf("%9" PRIu64 " target free pages\n", uvmexp.freetarg); 981 (void)printf("%9" PRIu64 " maximum wired pages\n", uvmexp.wiredmax); 982 983 (void)printf("%9" PRIu64 " swap devices\n", uvmexp.nswapdev); 984 (void)printf("%9" PRIu64 " swap pages\n", uvmexp.swpages); 985 (void)printf("%9" PRIu64 " swap pages in use\n", uvmexp.swpginuse); 986 (void)printf("%9" PRIu64 " swap allocations\n", uvmexp.nswget); 987 988 cpucounters(&cc); 989 990 (void)printf("%9" PRIu64 " total faults taken\n", cc.nfault); 991 (void)printf("%9" PRIu64 " traps\n", cc.ntrap); 992 (void)printf("%9" PRIu64 " device interrupts\n", cc.nintr); 993 (void)printf("%9" PRIu64 " CPU context switches\n", cc.nswtch); 994 (void)printf("%9" PRIu64 " software interrupts\n", cc.nsoft); 995 (void)printf("%9" PRIu64 " system calls\n", cc.nsyscall); 996 (void)printf("%9" PRIu64 " pagein requests\n", uvmexp.pageins); 997 (void)printf("%9" PRIu64 " pageout requests\n", uvmexp.pdpageouts); 998 (void)printf("%9" PRIu64 " pages swapped in\n", uvmexp.pgswapin); 999 (void)printf("%9" PRIu64 " pages swapped out\n", uvmexp.pgswapout); 1000 (void)printf("%9" PRIu64 " forks total\n", uvmexp.forks); 1001 (void)printf("%9" PRIu64 " forks blocked parent\n", uvmexp.forks_ppwait); 1002 (void)printf("%9" PRIu64 " forks shared address space with parent\n", 1003 uvmexp.forks_sharevm); 1004 (void)printf("%9" PRIu64 " pagealloc zero wanted and avail\n", 1005 uvmexp.pga_zerohit); 1006 (void)printf("%9" PRIu64 " pagealloc zero wanted and not avail\n", 1007 uvmexp.pga_zeromiss); 1008 (void)printf("%9" PRIu64 " aborts of idle page zeroing\n", 1009 uvmexp.zeroaborts); 1010 (void)printf("%9" PRIu64 " pagealloc desired color avail\n", 1011 uvmexp.colorhit); 1012 (void)printf("%9" PRIu64 " pagealloc desired color not avail\n", 1013 uvmexp.colormiss); 1014 (void)printf("%9" PRIu64 " pagealloc local cpu avail\n", 1015 uvmexp.cpuhit); 1016 (void)printf("%9" PRIu64 " pagealloc local cpu not avail\n", 1017 uvmexp.cpumiss); 1018 1019 (void)printf("%9" PRIu64 " faults with no memory\n", uvmexp.fltnoram); 1020 (void)printf("%9" PRIu64 " faults with no anons\n", uvmexp.fltnoanon); 1021 (void)printf("%9" PRIu64 " faults had to wait on pages\n", uvmexp.fltpgwait); 1022 (void)printf("%9" PRIu64 " faults found released page\n", uvmexp.fltpgrele); 1023 (void)printf("%9" PRIu64 " faults relock (%" PRIu64 " ok)\n", uvmexp.fltrelck, 1024 uvmexp.fltrelckok); 1025 (void)printf("%9" PRIu64 " anon page faults\n", uvmexp.fltanget); 1026 (void)printf("%9" PRIu64 " anon retry faults\n", uvmexp.fltanretry); 1027 (void)printf("%9" PRIu64 " amap copy faults\n", uvmexp.fltamcopy); 1028 (void)printf("%9" PRIu64 " neighbour anon page faults\n", uvmexp.fltnamap); 1029 (void)printf("%9" PRIu64 " neighbour object page faults\n", uvmexp.fltnomap); 1030 (void)printf("%9" PRIu64 " locked pager get faults\n", uvmexp.fltlget); 1031 (void)printf("%9" PRIu64 " unlocked pager get faults\n", uvmexp.fltget); 1032 (void)printf("%9" PRIu64 " anon faults\n", uvmexp.flt_anon); 1033 (void)printf("%9" PRIu64 " anon copy on write faults\n", uvmexp.flt_acow); 1034 (void)printf("%9" PRIu64 " object faults\n", uvmexp.flt_obj); 1035 (void)printf("%9" PRIu64 " promote copy faults\n", uvmexp.flt_prcopy); 1036 (void)printf("%9" PRIu64 " promote zero fill faults\n", uvmexp.flt_przero); 1037 1038 (void)printf("%9" PRIu64 " times daemon wokeup\n",uvmexp.pdwoke); 1039 (void)printf("%9" PRIu64 " revolutions of the clock hand\n", uvmexp.pdrevs); 1040 (void)printf("%9" PRIu64 " pages freed by daemon\n", uvmexp.pdfreed); 1041 (void)printf("%9" PRIu64 " pages scanned by daemon\n", uvmexp.pdscans); 1042 (void)printf("%9" PRIu64 " anonymous pages scanned by daemon\n", 1043 uvmexp.pdanscan); 1044 (void)printf("%9" PRIu64 " object pages scanned by daemon\n", uvmexp.pdobscan); 1045 (void)printf("%9" PRIu64 " pages reactivated\n", uvmexp.pdreact); 1046 (void)printf("%9" PRIu64 " pages found busy by daemon\n", uvmexp.pdbusy); 1047 (void)printf("%9" PRIu64 " total pending pageouts\n", uvmexp.pdpending); 1048 (void)printf("%9" PRIu64 " pages deactivated\n", uvmexp.pddeact); 1049 1050 if (active_kernel) { 1051 ssize = sizeof(nch_stats); 1052 if (sysctlbyname("vfs.namecache_stats", &nch_stats, &ssize, 1053 NULL, 0)) { 1054 warn("vfs.namecache_stats failed"); 1055 memset(&nch_stats, 0, sizeof(nch_stats)); 1056 } 1057 } else { 1058 kread(namelist, X_NCHSTATS, &nch_stats, sizeof(nch_stats)); 1059 } 1060 1061 nchtotal = nch_stats.ncs_goodhits + nch_stats.ncs_neghits + 1062 nch_stats.ncs_badhits + nch_stats.ncs_falsehits + 1063 nch_stats.ncs_miss + nch_stats.ncs_long; 1064 (void)printf("%9" PRIu64 " total name lookups\n", nchtotal); 1065 (void)printf("%9" PRIu64 " good hits\n", nch_stats.ncs_goodhits); 1066 (void)printf("%9" PRIu64 " negative hits\n", nch_stats.ncs_neghits); 1067 (void)printf("%9" PRIu64 " bad hits\n", nch_stats.ncs_badhits); 1068 (void)printf("%9" PRIu64 " false hits\n", nch_stats.ncs_falsehits); 1069 (void)printf("%9" PRIu64 " miss\n", nch_stats.ncs_miss); 1070 (void)printf("%9" PRIu64 " too long\n", nch_stats.ncs_long); 1071 (void)printf("%9" PRIu64 " pass2 hits\n", nch_stats.ncs_pass2); 1072 (void)printf("%9" PRIu64 " 2passes\n", nch_stats.ncs_2passes); 1073 (void)printf( 1074 "%9s cache hits (%d%% pos + %d%% neg) system %d%% per-process\n", 1075 "", PCT(nch_stats.ncs_goodhits, nchtotal), 1076 PCT(nch_stats.ncs_neghits, nchtotal), 1077 PCT(nch_stats.ncs_pass2, nchtotal)); 1078 (void)printf("%9s deletions %d%%, falsehits %d%%, toolong %d%%\n", "", 1079 PCT(nch_stats.ncs_badhits, nchtotal), 1080 PCT(nch_stats.ncs_falsehits, nchtotal), 1081 PCT(nch_stats.ncs_long, nchtotal)); 1082 } 1083 1084 void 1085 doforkst(void) 1086 { 1087 if (memf != NULL) { 1088 struct uvmexp uvmexp_kernel; 1089 kread(namelist, X_UVMEXP, &uvmexp_kernel, sizeof(uvmexp_kernel)); 1090 #define COPY(field) uvmexp.field = uvmexp_kernel.field 1091 COPY(forks); 1092 COPY(forks_ppwait); 1093 COPY(forks_sharevm); 1094 #undef COPY 1095 } else { 1096 size_t size = sizeof(uvmexp); 1097 if (sysctl(uvmexp2_mib, __arraycount(uvmexp2_mib), &uvmexp, 1098 &size, NULL, 0) == -1) 1099 warn("sysctl vm.uvmexp2 failed"); 1100 } 1101 1102 (void)printf("%" PRIu64 " forks total\n", uvmexp.forks); 1103 (void)printf("%" PRIu64 " forks blocked parent\n", uvmexp.forks_ppwait); 1104 (void)printf("%" PRIu64 " forks shared address space with parent\n", 1105 uvmexp.forks_sharevm); 1106 } 1107 1108 void 1109 drvstats(int *ovflwp) 1110 { 1111 size_t dn; 1112 double etime; 1113 int ovflw = *ovflwp; 1114 1115 /* Calculate disk stat deltas. */ 1116 cpuswap(); 1117 drvswap(); 1118 tkswap(); 1119 etime = cur.cp_etime; 1120 1121 for (dn = 0; dn < ndrive; ++dn) { 1122 if (!drv_select[dn]) 1123 continue; 1124 PRWORD(ovflw, " %*.0f", 3, 1, 1125 (cur.rxfer[dn] + cur.wxfer[dn]) / etime); 1126 } 1127 *ovflwp = ovflw; 1128 } 1129 1130 void 1131 cpucounters(struct cpu_counter *cc) 1132 { 1133 static struct cpu_info **cpu_infos; 1134 static int initialised; 1135 struct cpu_info **slot; 1136 1137 if (memf == NULL) { 1138 cc->nintr = uvmexp.intrs; 1139 cc->nsyscall = uvmexp.syscalls; 1140 cc->nswtch = uvmexp.swtch; 1141 cc->nfault = uvmexp.faults; 1142 cc->ntrap = uvmexp.traps; 1143 cc->nsoft = uvmexp.softs; 1144 return; 1145 } 1146 1147 if (!initialised) { 1148 kread(namelist, X_CPU_INFOS, &cpu_infos, sizeof(cpu_infos)); 1149 initialised = 1; 1150 } 1151 1152 slot = cpu_infos; 1153 1154 memset(cc, 0, sizeof(*cc)); 1155 1156 for (;;) { 1157 struct cpu_info tci, *ci = NULL; 1158 1159 deref_kptr(slot++, &ci, sizeof(ci), "CPU array trashed"); 1160 if (!ci) { 1161 break; 1162 } 1163 1164 if ((size_t)kvm_read(kd, (u_long)ci, &tci, sizeof(tci)) 1165 != sizeof(tci)) { 1166 warnx("Can't read cpu info from %p (%s)", 1167 ci, kvm_geterr(kd)); 1168 memset(cc, 0, sizeof(*cc)); 1169 return; 1170 } 1171 cc->nintr += tci.ci_data.cpu_nintr; 1172 cc->nsyscall += tci.ci_data.cpu_nsyscall; 1173 cc->nswtch = tci.ci_data.cpu_nswtch; 1174 cc->nfault = tci.ci_data.cpu_nfault; 1175 cc->ntrap = tci.ci_data.cpu_ntrap; 1176 cc->nsoft = tci.ci_data.cpu_nsoft; 1177 } 1178 } 1179 1180 void 1181 cpustats(int *ovflwp) 1182 { 1183 int state; 1184 double pcnt, total; 1185 double stat_us, stat_sy, stat_id; 1186 int ovflw = *ovflwp; 1187 1188 total = 0; 1189 for (state = 0; state < CPUSTATES; ++state) 1190 total += cur.cp_time[state]; 1191 if (total) 1192 pcnt = 100 / total; 1193 else 1194 pcnt = 0; 1195 stat_us = (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * pcnt; 1196 stat_sy = (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * pcnt; 1197 stat_id = cur.cp_time[CP_IDLE] * pcnt; 1198 PRWORD(ovflw, " %*.0f", ((stat_sy >= 100) ? 2 : 3), 1, stat_us); 1199 PRWORD(ovflw, " %*.0f", ((stat_us >= 100 || stat_id >= 100) ? 2 : 3), 1, 1200 stat_sy); 1201 PRWORD(ovflw, " %*.0f", 3, 1, stat_id); 1202 *ovflwp = ovflw; 1203 } 1204 1205 void 1206 dointr(int verbose) 1207 { 1208 unsigned long *intrcnt, *ointrcnt; 1209 unsigned long long inttotal, uptime; 1210 int nintr, inamlen; 1211 char *intrname, *ointrname; 1212 1213 inttotal = 0; 1214 uptime = getuptime(); 1215 (void)printf("%-34s %16s %8s\n", "interrupt", "total", "rate"); 1216 nintr = intrnl[X_EINTRCNT].n_value - intrnl[X_INTRCNT].n_value; 1217 inamlen = intrnl[X_EINTRNAMES].n_value - intrnl[X_INTRNAMES].n_value; 1218 if (nintr != 0 && inamlen != 0) { 1219 ointrcnt = intrcnt = malloc((size_t)nintr); 1220 ointrname = intrname = malloc((size_t)inamlen); 1221 if (intrcnt == NULL || intrname == NULL) 1222 errx(1, "%s", ""); 1223 kread(intrnl, X_INTRCNT, intrcnt, (size_t)nintr); 1224 kread(intrnl, X_INTRNAMES, intrname, (size_t)inamlen); 1225 nintr /= sizeof(long); 1226 while (--nintr >= 0) { 1227 if (*intrcnt || verbose) 1228 (void)printf("%-34s %16llu %8llu\n", intrname, 1229 (unsigned long long)*intrcnt, 1230 (unsigned long long) 1231 (*intrcnt / uptime)); 1232 intrname += strlen(intrname) + 1; 1233 inttotal += *intrcnt++; 1234 } 1235 free(ointrcnt); 1236 free(ointrname); 1237 } 1238 1239 doevcnt(verbose, EVCNT_TYPE_INTR); 1240 } 1241 1242 void 1243 doevcnt(int verbose, int type) 1244 { 1245 static const char * const evtypes [] = { "misc", "intr", "trap" }; 1246 uint64_t counttotal, uptime; 1247 struct evcntlist allevents; 1248 struct evcnt evcnt, *evptr; 1249 char evgroup[EVCNT_STRING_MAX], evname[EVCNT_STRING_MAX]; 1250 1251 counttotal = 0; 1252 uptime = getuptime(); 1253 if (type == EVCNT_TYPE_ANY) 1254 (void)printf("%-34s %16s %8s %s\n", "event", "total", "rate", 1255 "type"); 1256 1257 if (memf == NULL) do { 1258 const int mib[4] = { CTL_KERN, KERN_EVCNT, type, 1259 verbose ? KERN_EVCNT_COUNT_ANY : KERN_EVCNT_COUNT_NONZERO }; 1260 size_t buflen = 0; 1261 void *buf = NULL; 1262 const struct evcnt_sysctl *evs, *last_evs; 1263 for (;;) { 1264 size_t newlen; 1265 int error; 1266 if (buflen) 1267 buf = malloc(buflen); 1268 error = sysctl(mib, __arraycount(mib), 1269 buf, &newlen, NULL, 0); 1270 if (error) { 1271 err(1, "kern.evcnt"); 1272 if (buf) 1273 free(buf); 1274 return; 1275 } 1276 if (newlen <= buflen) { 1277 buflen = newlen; 1278 break; 1279 } 1280 if (buf) 1281 free(buf); 1282 buflen = newlen; 1283 } 1284 evs = buf; 1285 last_evs = (void *)((char *)buf + buflen); 1286 buflen /= sizeof(uint64_t); 1287 while (evs < last_evs 1288 && buflen >= sizeof(*evs)/sizeof(uint64_t) 1289 && buflen >= evs->ev_len) { 1290 (void)printf(type == EVCNT_TYPE_ANY ? 1291 "%s %s%*s %16"PRIu64" %8"PRIu64" %s\n" : 1292 "%s %s%*s %16"PRIu64" %8"PRIu64"\n", 1293 evs->ev_strings, 1294 evs->ev_strings + evs->ev_grouplen + 1, 1295 34 - (evs->ev_grouplen + 1 + evs->ev_namelen), "", 1296 evs->ev_count, 1297 evs->ev_count / uptime, 1298 (evs->ev_type < __arraycount(evtypes) ? 1299 evtypes[evs->ev_type] : "?")); 1300 buflen -= evs->ev_len; 1301 counttotal += evs->ev_count; 1302 evs = (const void *)((const uint64_t *)evs + evs->ev_len); 1303 } 1304 free(buf); 1305 if (type != EVCNT_TYPE_ANY) 1306 (void)printf("%-34s %16"PRIu64" %8"PRIu64"\n", 1307 "Total", counttotal, counttotal / uptime); 1308 return; 1309 } while (/*CONSTCOND*/ 0); 1310 1311 kread(namelist, X_ALLEVENTS, &allevents, sizeof allevents); 1312 evptr = TAILQ_FIRST(&allevents); 1313 while (evptr) { 1314 deref_kptr(evptr, &evcnt, sizeof(evcnt), "event chain trashed"); 1315 1316 evptr = TAILQ_NEXT(&evcnt, ev_list); 1317 if (evcnt.ev_count == 0 && !verbose) 1318 continue; 1319 if (type != EVCNT_TYPE_ANY && evcnt.ev_type != type) 1320 continue; 1321 1322 deref_kptr(evcnt.ev_group, evgroup, 1323 (size_t)evcnt.ev_grouplen + 1, "event chain trashed"); 1324 deref_kptr(evcnt.ev_name, evname, 1325 (size_t)evcnt.ev_namelen + 1, "event chain trashed"); 1326 1327 (void)printf(type == EVCNT_TYPE_ANY ? 1328 "%s %s%*s %16"PRIu64" %8"PRIu64" %s\n" : 1329 "%s %s%*s %16"PRIu64" %8"PRIu64"\n", 1330 evgroup, evname, 1331 34 - (evcnt.ev_grouplen + 1 + evcnt.ev_namelen), "", 1332 evcnt.ev_count, 1333 (evcnt.ev_count / uptime), 1334 (evcnt.ev_type < __arraycount(evtypes) ? 1335 evtypes[evcnt.ev_type] : "?")); 1336 1337 counttotal += evcnt.ev_count; 1338 } 1339 if (type != EVCNT_TYPE_ANY) 1340 (void)printf("%-34s %16"PRIu64" %8"PRIu64"\n", 1341 "Total", counttotal, counttotal / uptime); 1342 } 1343 1344 static void 1345 dopool_sysctl(int verbose, int wide) 1346 { 1347 uint64_t total, inuse, this_total, this_inuse; 1348 struct { 1349 uint64_t pt_nget; 1350 uint64_t pt_nfail; 1351 uint64_t pt_nput; 1352 uint64_t pt_nout; 1353 uint64_t pt_nitems; 1354 uint64_t pt_npagealloc; 1355 uint64_t pt_npagefree; 1356 uint64_t pt_npages; 1357 } pool_totals; 1358 size_t i, len; 1359 int name_len, ovflw; 1360 struct pool_sysctl *pp, *data; 1361 char in_use[8], avail[8], maxp[32]; 1362 1363 data = asysctlbyname("kern.pool", &len); 1364 if (data == NULL) 1365 err(1, "failed to reead kern.pool"); 1366 1367 memset(&pool_totals, 0, sizeof pool_totals); 1368 total = inuse = 0; 1369 len /= sizeof(*data); 1370 1371 (void)printf("Memory resource pool statistics\n"); 1372 (void)printf( 1373 "%-*s%*s%*s%5s%*s%s%s%*s%*s%6s%s%6s%6s%6s%5s%s%s\n", 1374 wide ? 16 : 11, "Name", 1375 wide ? 6 : 5, "Size", 1376 wide ? 12 : 9, "Requests", 1377 "Fail", 1378 wide ? 12 : 9, "Releases", 1379 wide ? " InUse" : "", 1380 wide ? " Avail" : "", 1381 wide ? 7 : 6, "Pgreq", 1382 wide ? 7 : 6, "Pgrel", 1383 "Npage", 1384 wide ? " PageSz" : "", 1385 "Hiwat", 1386 "Minpg", 1387 "Maxpg", 1388 "Idle", 1389 wide ? " Flags" : "", 1390 wide ? " Util" : ""); 1391 1392 name_len = MIN((int)sizeof(pp->pr_wchan), wide ? 16 : 11); 1393 for (i = 0; i < len; ++i) { 1394 pp = &data[i]; 1395 if (pp->pr_nget == 0 && !verbose) 1396 continue; 1397 if (pp->pr_maxpages == UINT_MAX) 1398 (void)snprintf(maxp, sizeof(maxp), "inf"); 1399 else 1400 (void)snprintf(maxp, sizeof(maxp), "%" PRIu64, 1401 pp->pr_maxpages); 1402 ovflw = 0; 1403 PRWORD(ovflw, "%-*s", name_len, 0, pp->pr_wchan); 1404 PRWORD(ovflw, " %*" PRIu64, wide ? 6 : 5, 1, pp->pr_size); 1405 PRWORD(ovflw, " %*" PRIu64, wide ? 12 : 9, 1, pp->pr_nget); 1406 pool_totals.pt_nget += pp->pr_nget; 1407 PRWORD(ovflw, " %*" PRIu64, 5, 1, pp->pr_nfail); 1408 pool_totals.pt_nfail += pp->pr_nfail; 1409 PRWORD(ovflw, " %*" PRIu64, wide ? 12 : 9, 1, pp->pr_nput); 1410 pool_totals.pt_nput += pp->pr_nput; 1411 if (wide) { 1412 PRWORD(ovflw, " %*" PRIu64, 7, 1, pp->pr_nout); 1413 pool_totals.pt_nout += pp->pr_nout; 1414 } 1415 if (wide) { 1416 PRWORD(ovflw, " %*" PRIu64, 6, 1, pp->pr_nitems); 1417 pool_totals.pt_nitems += pp->pr_nitems; 1418 } 1419 PRWORD(ovflw, " %*" PRIu64, wide ? 7 : 6, 1, pp->pr_npagealloc); 1420 pool_totals.pt_npagealloc += pp->pr_npagealloc; 1421 PRWORD(ovflw, " %*" PRIu64, wide ? 7 : 6, 1, pp->pr_npagefree); 1422 pool_totals.pt_npagefree += pp->pr_npagefree; 1423 PRWORD(ovflw, " %*" PRIu64, 6, 1, pp->pr_npages); 1424 pool_totals.pt_npages += pp->pr_npages; 1425 if (wide) 1426 PRWORD(ovflw, " %*" PRIu64, 7, 1, pp->pr_pagesize); 1427 PRWORD(ovflw, " %*" PRIu64, 6, 1, pp->pr_hiwat); 1428 PRWORD(ovflw, " %*" PRIu64, 6, 1, pp->pr_minpages); 1429 PRWORD(ovflw, " %*s", 6, 1, maxp); 1430 PRWORD(ovflw, " %*" PRIu64, 5, 1, pp->pr_nidle); 1431 if (wide) 1432 PRWORD(ovflw, " 0x%0*" PRIx64, 4, 1, 1433 pp->pr_flags); 1434 1435 this_inuse = pp->pr_nout * pp->pr_size; 1436 this_total = pp->pr_npages * pp->pr_pagesize; 1437 if (pp->pr_flags & PR_RECURSIVE) { 1438 /* 1439 * Don't count in-use memory, since it's part 1440 * of another pool and will be accounted for 1441 * there. 1442 */ 1443 total += (this_total - this_inuse); 1444 } else { 1445 inuse += this_inuse; 1446 total += this_total; 1447 } 1448 if (wide) { 1449 if (this_total == 0) 1450 (void)printf(" ---"); 1451 else 1452 (void)printf(" %5.1f%%", 1453 (100.0 * this_inuse) / this_total); 1454 } 1455 (void)printf("\n"); 1456 } 1457 if (wide) { 1458 snprintf(in_use, sizeof in_use, "%7"PRId64, pool_totals.pt_nout); 1459 snprintf(avail, sizeof avail, "%6"PRId64, pool_totals.pt_nitems); 1460 } else { 1461 in_use[0] = '\0'; 1462 avail[0] = '\0'; 1463 } 1464 (void)printf( 1465 "%-*s%*s%*"PRId64"%5"PRId64"%*"PRId64"%s%s%*"PRId64"%*"PRId64"%6"PRId64"\n", 1466 wide ? 16 : 11, "Totals", 1467 wide ? 6 : 5, "", 1468 wide ? 12 : 9, pool_totals.pt_nget, 1469 pool_totals.pt_nfail, 1470 wide ? 12 : 9, pool_totals.pt_nput, 1471 in_use, 1472 avail, 1473 wide ? 7 : 6, pool_totals.pt_npagealloc, 1474 wide ? 7 : 6, pool_totals.pt_npagefree, 1475 pool_totals.pt_npages); 1476 1477 inuse /= KILO; 1478 total /= KILO; 1479 (void)printf( 1480 "\nIn use %" PRIu64 "K, " 1481 "total allocated %" PRIu64 "K; utilization %.1f%%\n", 1482 inuse, total, (100.0 * inuse) / total); 1483 1484 free(data); 1485 } 1486 1487 void 1488 dopool(int verbose, int wide) 1489 { 1490 int first, ovflw; 1491 void *addr; 1492 long total, inuse, this_total, this_inuse; 1493 struct { 1494 uint64_t pt_nget; 1495 uint64_t pt_nfail; 1496 uint64_t pt_nput; 1497 uint64_t pt_nout; 1498 uint64_t pt_nitems; 1499 uint64_t pt_npagealloc; 1500 uint64_t pt_npagefree; 1501 uint64_t pt_npages; 1502 } pool_totals; 1503 char in_use[8]; 1504 char avail[8]; 1505 TAILQ_HEAD(,pool) pool_head; 1506 struct pool pool, *pp = &pool; 1507 struct pool_allocator pa; 1508 char name[32], maxp[32]; 1509 1510 if (memf == NULL) 1511 return dopool_sysctl(verbose, wide); 1512 1513 memset(&pool_totals, 0, sizeof pool_totals); 1514 kread(namelist, X_POOLHEAD, &pool_head, sizeof(pool_head)); 1515 addr = TAILQ_FIRST(&pool_head); 1516 1517 total = inuse = 0; 1518 1519 for (first = 1; addr != NULL; addr = TAILQ_NEXT(pp, pr_poollist) ) { 1520 deref_kptr(addr, pp, sizeof(*pp), "pool chain trashed"); 1521 deref_kptr(pp->pr_alloc, &pa, sizeof(pa), 1522 "pool allocator trashed"); 1523 deref_kptr(pp->pr_wchan, name, sizeof(name), 1524 "pool wait channel trashed"); 1525 name[sizeof(name)-1] = '\0'; 1526 1527 if (first) { 1528 (void)printf("Memory resource pool statistics\n"); 1529 (void)printf( 1530 "%-*s%*s%*s%5s%*s%s%s%*s%*s%6s%s%6s%6s%6s%5s%s%s\n", 1531 wide ? 16 : 11, "Name", 1532 wide ? 6 : 5, "Size", 1533 wide ? 12 : 9, "Requests", 1534 "Fail", 1535 wide ? 12 : 9, "Releases", 1536 wide ? " InUse" : "", 1537 wide ? " Avail" : "", 1538 wide ? 7 : 6, "Pgreq", 1539 wide ? 7 : 6, "Pgrel", 1540 "Npage", 1541 wide ? " PageSz" : "", 1542 "Hiwat", 1543 "Minpg", 1544 "Maxpg", 1545 "Idle", 1546 wide ? " Flags" : "", 1547 wide ? " Util" : ""); 1548 first = 0; 1549 } 1550 if (pp->pr_nget == 0 && !verbose) 1551 continue; 1552 if (pp->pr_maxpages == UINT_MAX) 1553 (void)snprintf(maxp, sizeof(maxp), "inf"); 1554 else 1555 (void)snprintf(maxp, sizeof(maxp), "%u", 1556 pp->pr_maxpages); 1557 ovflw = 0; 1558 PRWORD(ovflw, "%-*s", wide ? 16 : 11, 0, name); 1559 PRWORD(ovflw, " %*u", wide ? 6 : 5, 1, pp->pr_size); 1560 PRWORD(ovflw, " %*lu", wide ? 12 : 9, 1, pp->pr_nget); 1561 pool_totals.pt_nget += pp->pr_nget; 1562 PRWORD(ovflw, " %*lu", 5, 1, pp->pr_nfail); 1563 pool_totals.pt_nfail += pp->pr_nfail; 1564 PRWORD(ovflw, " %*lu", wide ? 12 : 9, 1, pp->pr_nput); 1565 pool_totals.pt_nput += pp->pr_nput; 1566 if (wide) { 1567 PRWORD(ovflw, " %*u", 7, 1, pp->pr_nout); 1568 pool_totals.pt_nout += pp->pr_nout; 1569 } 1570 if (wide) { 1571 PRWORD(ovflw, " %*u", 6, 1, pp->pr_nitems); 1572 pool_totals.pt_nitems += pp->pr_nitems; 1573 } 1574 PRWORD(ovflw, " %*lu", wide ? 7 : 6, 1, pp->pr_npagealloc); 1575 pool_totals.pt_npagealloc += pp->pr_npagealloc; 1576 PRWORD(ovflw, " %*lu", wide ? 7 : 6, 1, pp->pr_npagefree); 1577 pool_totals.pt_npagefree += pp->pr_npagefree; 1578 PRWORD(ovflw, " %*u", 6, 1, pp->pr_npages); 1579 pool_totals.pt_npages += pp->pr_npages; 1580 if (wide) 1581 PRWORD(ovflw, " %*u", 7, 1, pa.pa_pagesz); 1582 PRWORD(ovflw, " %*u", 6, 1, pp->pr_hiwat); 1583 PRWORD(ovflw, " %*u", 6, 1, pp->pr_minpages); 1584 PRWORD(ovflw, " %*s", 6, 1, maxp); 1585 PRWORD(ovflw, " %*lu", 5, 1, pp->pr_nidle); 1586 if (wide) 1587 PRWORD(ovflw, " 0x%0*x", 4, 1, 1588 pp->pr_flags | pp->pr_roflags); 1589 1590 this_inuse = pp->pr_nout * pp->pr_size; 1591 this_total = pp->pr_npages * pa.pa_pagesz; 1592 if (pp->pr_roflags & PR_RECURSIVE) { 1593 /* 1594 * Don't count in-use memory, since it's part 1595 * of another pool and will be accounted for 1596 * there. 1597 */ 1598 total += (this_total - this_inuse); 1599 } else { 1600 inuse += this_inuse; 1601 total += this_total; 1602 } 1603 if (wide) { 1604 if (this_total == 0) 1605 (void)printf(" ---"); 1606 else 1607 (void)printf(" %5.1f%%", 1608 (100.0 * this_inuse) / this_total); 1609 } 1610 (void)printf("\n"); 1611 } 1612 if (wide) { 1613 snprintf(in_use, sizeof in_use, "%7"PRId64, pool_totals.pt_nout); 1614 snprintf(avail, sizeof avail, "%6"PRId64, pool_totals.pt_nitems); 1615 } else { 1616 in_use[0] = '\0'; 1617 avail[0] = '\0'; 1618 } 1619 (void)printf( 1620 "%-*s%*s%*"PRId64"%5"PRId64"%*"PRId64"%s%s%*"PRId64"%*"PRId64"%6"PRId64"\n", 1621 wide ? 16 : 11, "Totals", 1622 wide ? 6 : 5, "", 1623 wide ? 12 : 9, pool_totals.pt_nget, 1624 pool_totals.pt_nfail, 1625 wide ? 12 : 9, pool_totals.pt_nput, 1626 in_use, 1627 avail, 1628 wide ? 7 : 6, pool_totals.pt_npagealloc, 1629 wide ? 7 : 6, pool_totals.pt_npagefree, 1630 pool_totals.pt_npages); 1631 1632 inuse /= KILO; 1633 total /= KILO; 1634 (void)printf( 1635 "\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n", 1636 inuse, total, (100.0 * inuse) / total); 1637 } 1638 1639 static void 1640 dopoolcache_sysctl(int verbose) 1641 { 1642 struct pool_sysctl *data, *pp; 1643 size_t i, len; 1644 bool first = true; 1645 int ovflw; 1646 uint64_t tot; 1647 double p; 1648 1649 data = asysctlbyname("kern.pool", &len); 1650 if (data == NULL) 1651 err(1, "failed to reead kern.pool"); 1652 len /= sizeof(*data); 1653 1654 for (i = 0; i < len; ++i) { 1655 pp = &data[i]; 1656 if (pp->pr_cache_meta_size == 0) 1657 continue; 1658 1659 if (pp->pr_cache_nmiss_global == 0 && !verbose) 1660 continue; 1661 1662 if (first) { 1663 (void)printf("Pool cache statistics.\n"); 1664 (void)printf("%-*s%*s%*s%*s%*s%*s%*s%*s%*s%*s\n", 1665 12, "Name", 1666 6, "Spin", 1667 6, "GrpSz", 1668 5, "Full", 1669 5, "Emty", 1670 10, "PoolLayer", 1671 11, "CacheLayer", 1672 6, "Hit%", 1673 12, "CpuLayer", 1674 6, "Hit%" 1675 ); 1676 first = false; 1677 } 1678 1679 ovflw = 0; 1680 PRWORD(ovflw, "%-*s", MIN((int)sizeof(pp->pr_wchan), 13), 1, 1681 pp->pr_wchan); 1682 PRWORD(ovflw, " %*" PRIu64, 6, 1, pp->pr_cache_ncontended); 1683 PRWORD(ovflw, " %*" PRIu64, 6, 1, pp->pr_cache_meta_size); 1684 PRWORD(ovflw, " %*" PRIu64, 5, 1, pp->pr_cache_nfull); 1685 PRWORD(ovflw, " %*" PRIu64, 5, 1, pp->pr_cache_nempty); 1686 PRWORD(ovflw, " %*" PRIu64, 10, 1, pp->pr_cache_nmiss_global); 1687 1688 tot = pp->pr_cache_nhit_global + pp->pr_cache_nmiss_global; 1689 p = pp->pr_cache_nhit_global * 100.0 / tot; 1690 PRWORD(ovflw, " %*" PRIu64, 11, 1, tot); 1691 PRWORD(ovflw, " %*.1f", 6, 1, p); 1692 1693 tot = pp->pr_cache_nhit_pcpu + pp->pr_cache_nmiss_pcpu; 1694 p = pp->pr_cache_nhit_pcpu * 100.0 / tot; 1695 PRWORD(ovflw, " %*" PRIu64, 12, 1, tot); 1696 PRWORD(ovflw, " %*.1f", 6, 1, p); 1697 printf("\n"); 1698 } 1699 } 1700 1701 void 1702 dopoolcache(int verbose) 1703 { 1704 struct pool_cache pool_cache, *pc = &pool_cache; 1705 pool_cache_cpu_t cache_cpu, *cc = &cache_cpu; 1706 TAILQ_HEAD(,pool) pool_head; 1707 struct pool pool, *pp = &pool; 1708 char name[32]; 1709 uint64_t cpuhit, cpumiss, tot; 1710 void *addr; 1711 int first, ovflw; 1712 size_t i; 1713 double p; 1714 1715 if (memf == NULL) 1716 return dopoolcache_sysctl(verbose); 1717 1718 kread(namelist, X_POOLHEAD, &pool_head, sizeof(pool_head)); 1719 addr = TAILQ_FIRST(&pool_head); 1720 1721 for (first = 1; addr != NULL; addr = TAILQ_NEXT(pp, pr_poollist) ) { 1722 deref_kptr(addr, pp, sizeof(*pp), "pool chain trashed"); 1723 if (pp->pr_cache == NULL) 1724 continue; 1725 deref_kptr(pp->pr_wchan, name, sizeof(name), 1726 "pool wait channel trashed"); 1727 deref_kptr(pp->pr_cache, pc, sizeof(*pc), "pool cache trashed"); 1728 if (pc->pc_misses == 0 && !verbose) 1729 continue; 1730 name[sizeof(name)-1] = '\0'; 1731 1732 cpuhit = 0; 1733 cpumiss = 0; 1734 for (i = 0; i < __arraycount(pc->pc_cpus); i++) { 1735 if ((addr = pc->pc_cpus[i]) == NULL) 1736 continue; 1737 deref_kptr(addr, cc, sizeof(*cc), 1738 "pool cache cpu trashed"); 1739 cpuhit += cc->cc_hits; 1740 cpumiss += cc->cc_misses; 1741 } 1742 1743 if (first) { 1744 (void)printf("Pool cache statistics.\n"); 1745 (void)printf("%-*s%*s%*s%*s%*s%*s%*s%*s%*s%*s\n", 1746 12, "Name", 1747 6, "Spin", 1748 6, "GrpSz", 1749 5, "Full", 1750 5, "Emty", 1751 10, "PoolLayer", 1752 11, "CacheLayer", 1753 6, "Hit%", 1754 12, "CpuLayer", 1755 6, "Hit%" 1756 ); 1757 first = 0; 1758 } 1759 1760 ovflw = 0; 1761 PRWORD(ovflw, "%-*s", 13, 1, name); 1762 PRWORD(ovflw, " %*llu", 6, 1, (long long)pc->pc_contended); 1763 PRWORD(ovflw, " %*u", 6, 1, pc->pc_pcgsize); 1764 PRWORD(ovflw, " %*u", 5, 1, pc->pc_nfull); 1765 PRWORD(ovflw, " %*u", 5, 1, pc->pc_nempty); 1766 PRWORD(ovflw, " %*llu", 10, 1, (long long)pc->pc_misses); 1767 1768 tot = pc->pc_hits + pc->pc_misses; 1769 p = pc->pc_hits * 100.0 / (tot); 1770 PRWORD(ovflw, " %*llu", 11, 1, (long long)tot); 1771 PRWORD(ovflw, " %*.1f", 6, 1, p); 1772 1773 tot = cpuhit + cpumiss; 1774 p = cpuhit * 100.0 / (tot); 1775 PRWORD(ovflw, " %*llu", 12, 1, (long long)tot); 1776 PRWORD(ovflw, " %*.1f", 6, 1, p); 1777 printf("\n"); 1778 } 1779 } 1780 1781 enum hashtype { /* from <sys/systm.h> */ 1782 HASH_LIST, 1783 HASH_TAILQ 1784 }; 1785 1786 struct uidinfo { /* XXX: no kernel header file */ 1787 LIST_ENTRY(uidinfo) ui_hash; 1788 uid_t ui_uid; 1789 long ui_proccnt; 1790 }; 1791 1792 struct kernel_hash { 1793 const char * description; /* description */ 1794 int hashsize; /* nlist index for hash size */ 1795 int hashtbl; /* nlist index for hash table */ 1796 enum hashtype type; /* type of hash table */ 1797 size_t offset; /* offset of {LIST,TAILQ}_NEXT */ 1798 } khashes[] = 1799 { 1800 { 1801 "buffer hash", 1802 X_BUFHASH, X_BUFHASHTBL, 1803 HASH_LIST, offsetof(struct buf, b_hash) 1804 }, { 1805 "ipv4 address -> interface hash", 1806 X_IFADDRHASH, X_IFADDRHASHTBL, 1807 HASH_LIST, offsetof(struct in_ifaddr, ia_hash), 1808 }, { 1809 "name cache hash", 1810 X_NCHASH, X_NCHASHTBL, 1811 HASH_LIST, offsetof(struct namecache, nc_hash), 1812 }, { 1813 "name cache directory hash", 1814 X_NCVHASH, X_NCVHASHTBL, 1815 HASH_LIST, offsetof(struct namecache, nc_vhash), 1816 }, { 1817 "user info (uid -> used processes) hash", 1818 X_UIHASH, X_UIHASHTBL, 1819 HASH_LIST, offsetof(struct uidinfo, ui_hash), 1820 }, { 1821 NULL, -1, -1, 0, 0, 1822 } 1823 }; 1824 1825 void 1826 dohashstat(int verbose, int todo, const char *hashname) 1827 { 1828 LIST_HEAD(, generic) *hashtbl_list; 1829 TAILQ_HEAD(, generic) *hashtbl_tailq; 1830 struct kernel_hash *curhash; 1831 void *hashaddr, *hashbuf, *nhashbuf, *nextaddr; 1832 size_t elemsize, hashbufsize, thissize; 1833 u_long hashsize, i; 1834 int used, items, chain, maxchain; 1835 1836 hashbuf = NULL; 1837 hashbufsize = 0; 1838 1839 if (todo & HASHLIST) { 1840 (void)printf("Supported hashes:\n"); 1841 for (curhash = khashes; curhash->description; curhash++) { 1842 if (hashnl[curhash->hashsize].n_value == 0 || 1843 hashnl[curhash->hashtbl].n_value == 0) 1844 continue; 1845 (void)printf("\t%-16s%s\n", 1846 hashnl[curhash->hashsize].n_name + 1, 1847 curhash->description); 1848 } 1849 return; 1850 } 1851 1852 if (hashname != NULL) { 1853 for (curhash = khashes; curhash->description; curhash++) { 1854 if (strcmp(hashnl[curhash->hashsize].n_name + 1, 1855 hashname) == 0 && 1856 hashnl[curhash->hashsize].n_value != 0 && 1857 hashnl[curhash->hashtbl].n_value != 0) 1858 break; 1859 } 1860 if (curhash->description == NULL) { 1861 warnx("%s: no such hash", hashname); 1862 return; 1863 } 1864 } 1865 1866 (void)printf( 1867 "%-16s %8s %8s %8s %8s %8s %8s\n" 1868 "%-16s %8s %8s %8s %8s %8s %8s\n", 1869 "", "total", "used", "util", "num", "average", "maximum", 1870 "hash table", "buckets", "buckets", "%", "items", "chain", 1871 "chain"); 1872 1873 for (curhash = khashes; curhash->description; curhash++) { 1874 if (hashnl[curhash->hashsize].n_value == 0 || 1875 hashnl[curhash->hashtbl].n_value == 0) 1876 continue; 1877 if (hashname != NULL && 1878 strcmp(hashnl[curhash->hashsize].n_name + 1, hashname)) 1879 continue; 1880 elemsize = curhash->type == HASH_LIST ? 1881 sizeof(*hashtbl_list) : sizeof(*hashtbl_tailq); 1882 deref_kptr((void *)hashnl[curhash->hashsize].n_value, 1883 &hashsize, sizeof(hashsize), 1884 hashnl[curhash->hashsize].n_name); 1885 hashsize++; 1886 deref_kptr((void *)hashnl[curhash->hashtbl].n_value, 1887 &hashaddr, sizeof(hashaddr), 1888 hashnl[curhash->hashtbl].n_name); 1889 if (verbose) 1890 (void)printf( 1891 "%s %lu, %s %p, offset %ld, elemsize %llu\n", 1892 hashnl[curhash->hashsize].n_name + 1, hashsize, 1893 hashnl[curhash->hashtbl].n_name + 1, hashaddr, 1894 (long)curhash->offset, 1895 (unsigned long long)elemsize); 1896 thissize = hashsize * elemsize; 1897 if (hashbuf == NULL || thissize > hashbufsize) { 1898 if ((nhashbuf = realloc(hashbuf, thissize)) == NULL) 1899 errx(1, "malloc hashbuf %llu", 1900 (unsigned long long)hashbufsize); 1901 hashbuf = nhashbuf; 1902 hashbufsize = thissize; 1903 } 1904 deref_kptr(hashaddr, hashbuf, thissize, 1905 hashnl[curhash->hashtbl].n_name); 1906 used = 0; 1907 items = maxchain = 0; 1908 if (curhash->type == HASH_LIST) { 1909 hashtbl_list = hashbuf; 1910 hashtbl_tailq = NULL; 1911 } else { 1912 hashtbl_list = NULL; 1913 hashtbl_tailq = hashbuf; 1914 } 1915 for (i = 0; i < hashsize; i++) { 1916 if (curhash->type == HASH_LIST) 1917 nextaddr = LIST_FIRST(&hashtbl_list[i]); 1918 else 1919 nextaddr = TAILQ_FIRST(&hashtbl_tailq[i]); 1920 if (nextaddr == NULL) 1921 continue; 1922 if (verbose) 1923 (void)printf("%5lu: %p\n", i, nextaddr); 1924 used++; 1925 chain = 0; 1926 do { 1927 chain++; 1928 deref_kptr((char *)nextaddr + curhash->offset, 1929 &nextaddr, sizeof(void *), 1930 "hash chain corrupted"); 1931 if (verbose > 1) 1932 (void)printf("got nextaddr as %p\n", 1933 nextaddr); 1934 } while (nextaddr != NULL); 1935 items += chain; 1936 if (verbose && chain > 1) 1937 (void)printf("\tchain = %d\n", chain); 1938 if (chain > maxchain) 1939 maxchain = chain; 1940 } 1941 (void)printf("%-16s %8ld %8d %8.2f %8d %8.2f %8d\n", 1942 hashnl[curhash->hashsize].n_name + 1, 1943 hashsize, used, used * 100.0 / hashsize, 1944 items, used ? (double)items / used : 0.0, maxchain); 1945 } 1946 } 1947 1948 /* 1949 * kreadc like kread but returns 1 if sucessful, 0 otherwise 1950 */ 1951 int 1952 kreadc(struct nlist *nl, int nlx, void *addr, size_t size) 1953 { 1954 const char *sym; 1955 1956 sym = nl[nlx].n_name; 1957 if (*sym == '_') 1958 ++sym; 1959 if (nl[nlx].n_type == 0 || nl[nlx].n_value == 0) 1960 return 0; 1961 deref_kptr((void *)nl[nlx].n_value, addr, size, sym); 1962 return 1; 1963 } 1964 1965 /* 1966 * kread reads something from the kernel, given its nlist index in namelist[]. 1967 */ 1968 void 1969 kread(struct nlist *nl, int nlx, void *addr, size_t size) 1970 { 1971 const char *sym; 1972 1973 sym = nl[nlx].n_name; 1974 if (*sym == '_') 1975 ++sym; 1976 if (nl[nlx].n_type == 0 || nl[nlx].n_value == 0) 1977 errx(1, "symbol %s not defined", sym); 1978 deref_kptr((void *)nl[nlx].n_value, addr, size, sym); 1979 } 1980 1981 /* 1982 * Dereference the kernel pointer `kptr' and fill in the local copy 1983 * pointed to by `ptr'. The storage space must be pre-allocated, 1984 * and the size of the copy passed in `len'. 1985 */ 1986 void 1987 deref_kptr(const void *kptr, void *ptr, size_t len, const char *msg) 1988 { 1989 1990 if (*msg == '_') 1991 msg++; 1992 if ((size_t)kvm_read(kd, (u_long)kptr, (char *)ptr, len) != len) 1993 errx(1, "kptr %lx: %s: %s", (u_long)kptr, msg, kvm_geterr(kd)); 1994 } 1995 1996 /* 1997 * Traverse the kernel history buffers, performing the requested action. 1998 * 1999 * Note, we assume that if we're not listing, we're dumping. 2000 */ 2001 void 2002 hist_traverse(int todo, const char *histname) 2003 { 2004 struct kern_history_head histhead; 2005 struct kern_history hist, *histkva; 2006 char *name = NULL; 2007 size_t namelen = 0; 2008 2009 if (histnl[0].n_value == 0) { 2010 warnx("kernel history is not compiled into the kernel."); 2011 return; 2012 } 2013 2014 deref_kptr((void *)histnl[X_KERN_HISTORIES].n_value, &histhead, 2015 sizeof(histhead), histnl[X_KERN_HISTORIES].n_name); 2016 2017 if (histhead.lh_first == NULL) { 2018 warnx("No active kernel history logs."); 2019 return; 2020 } 2021 2022 if (todo & HISTLIST) 2023 (void)printf("Active kernel histories:"); 2024 2025 for (histkva = LIST_FIRST(&histhead); histkva != NULL; 2026 histkva = LIST_NEXT(&hist, list)) { 2027 deref_kptr(histkva, &hist, sizeof(hist), "histkva"); 2028 if (name == NULL || hist.namelen > namelen) { 2029 if (name != NULL) 2030 free(name); 2031 namelen = hist.namelen; 2032 if ((name = malloc(namelen + 1)) == NULL) 2033 err(1, "malloc history name"); 2034 } 2035 2036 deref_kptr(hist.name, name, namelen, "history name"); 2037 name[namelen] = '\0'; 2038 if (todo & HISTLIST) 2039 (void)printf(" %s", name); 2040 else { 2041 /* 2042 * If we're dumping all histories, do it, else 2043 * check to see if this is the one we want. 2044 */ 2045 if (histname == NULL || strcmp(histname, name) == 0) { 2046 if (histname == NULL) 2047 (void)printf( 2048 "\nkernel history `%s':\n", name); 2049 hist_dodump(&hist); 2050 } 2051 } 2052 } 2053 2054 if (todo & HISTLIST) 2055 (void)putchar('\n'); 2056 2057 if (name != NULL) 2058 free(name); 2059 } 2060 2061 /* 2062 * Actually dump the history buffer at the specified KVA. 2063 */ 2064 void 2065 hist_dodump(struct kern_history *histp) 2066 { 2067 struct kern_history_ent *histents, *e; 2068 size_t histsize; 2069 char *fmt = NULL, *fn = NULL; 2070 size_t fmtlen = 0, fnlen = 0; 2071 unsigned i; 2072 2073 histsize = sizeof(struct kern_history_ent) * histp->n; 2074 2075 if ((histents = malloc(histsize)) == NULL) 2076 err(1, "malloc history entries"); 2077 2078 (void)memset(histents, 0, histsize); 2079 2080 deref_kptr(histp->e, histents, histsize, "history entries"); 2081 i = histp->f; 2082 do { 2083 e = &histents[i]; 2084 if (e->fmt != NULL) { 2085 if (fmt == NULL || e->fmtlen > fmtlen) { 2086 if (fmt != NULL) 2087 free(fmt); 2088 fmtlen = e->fmtlen; 2089 if ((fmt = malloc(fmtlen + 1)) == NULL) 2090 err(1, "malloc printf format"); 2091 } 2092 if (fn == NULL || e->fnlen > fnlen) { 2093 if (fn != NULL) 2094 free(fn); 2095 fnlen = e->fnlen; 2096 if ((fn = malloc(fnlen + 1)) == NULL) 2097 err(1, "malloc function name"); 2098 } 2099 2100 deref_kptr(e->fmt, fmt, fmtlen, "printf format"); 2101 fmt[fmtlen] = '\0'; 2102 2103 deref_kptr(e->fn, fn, fnlen, "function name"); 2104 fn[fnlen] = '\0'; 2105 2106 (void)printf("%06ld.%06ld ", (long int)e->tv.tv_sec, 2107 (long int)e->tv.tv_usec); 2108 (void)printf("%s#%ld@%d: ", fn, e->call, e->cpunum); 2109 (void)printf(fmt, e->v[0], e->v[1], e->v[2], e->v[3]); 2110 (void)putchar('\n'); 2111 } 2112 i = (i + 1) % histp->n; 2113 } while (i != histp->f); 2114 2115 free(histents); 2116 if (fmt != NULL) 2117 free(fmt); 2118 if (fn != NULL) 2119 free(fn); 2120 } 2121 2122 static void 2123 usage(void) 2124 { 2125 2126 (void)fprintf(stderr, 2127 "usage: %s [-CefHiLlmstUvW] [-c count] [-h hashname] [-M core] [-N system]\n" 2128 "\t\t[-u histname] [-w wait] [disks]\n", getprogname()); 2129 exit(1); 2130 } 2131
Indexes created Tue Oct 21 08:09:48 GMT 2025