1 /* $NetBSD: vmstat.c,v 1.181 2011/05/17 04:18:07 mrg 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 1.181 2011/05/17 04:18:07 mrg 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/user.h> 97 #include <sys/queue.h> 98 #include <sys/kernhist.h> 99 100 #include <uvm/uvm_extern.h> 101 #include <uvm/uvm_stat.h> 102 103 #include <net/if.h> 104 #include <netinet/in.h> 105 #include <netinet/in_var.h> 106 107 #include <ufs/ufs/inode.h> 108 109 #include <nfs/rpcv2.h> 110 #include <nfs/nfsproto.h> 111 #include <nfs/nfsnode.h> 112 113 #include <ctype.h> 114 #include <err.h> 115 #include <errno.h> 116 #include <fcntl.h> 117 #include <kvm.h> 118 #include <limits.h> 119 #include <nlist.h> 120 #undef n_hash 121 #include <paths.h> 122 #include <signal.h> 123 #include <stdio.h> 124 #include <stddef.h> 125 #include <stdlib.h> 126 #include <string.h> 127 #include <time.h> 128 #include <unistd.h> 129 #include <util.h> 130 131 #include "drvstats.h" 132 133 /* 134 * All this mess will go away once everything is converted. 135 */ 136 #ifdef __HAVE_CPU_DATA_FIRST 137 138 # include <sys/cpu_data.h> 139 struct cpu_info { 140 struct cpu_data ci_data; 141 }; 142 CIRCLEQ_HEAD(cpuqueue, cpu_info); 143 struct cpuqueue cpu_queue; 144 145 #else 146 147 # include <sys/cpu.h> 148 struct cpuqueue cpu_queue; 149 150 #endif 151 /* 152 * General namelist 153 */ 154 struct nlist namelist[] = 155 { 156 #define X_BOOTTIME 0 157 { .n_name = "_boottime" }, 158 #define X_HZ 1 159 { .n_name = "_hz" }, 160 #define X_STATHZ 2 161 { .n_name = "_stathz" }, 162 #define X_NCHSTATS 3 163 { .n_name = "_nchstats" }, 164 #define X_KMEMSTAT 4 165 { .n_name = "_kmemstatistics" }, 166 #define X_KMEMBUCKETS 5 167 { .n_name = "_kmembuckets" }, 168 #define X_ALLEVENTS 6 169 { .n_name = "_allevents" }, 170 #define X_POOLHEAD 7 171 { .n_name = "_pool_head" }, 172 #define X_UVMEXP 8 173 { .n_name = "_uvmexp" }, 174 #define X_TIME_SECOND 9 175 { .n_name = "_time_second" }, 176 #define X_TIME 10 177 { .n_name = "_time" }, 178 #define X_CPU_QUEUE 11 179 { .n_name = "_cpu_queue" }, 180 #define X_NL_SIZE 12 181 { .n_name = NULL }, 182 }; 183 184 /* 185 * Namelist for pre-evcnt interrupt counters. 186 */ 187 struct nlist intrnl[] = 188 { 189 #define X_INTRNAMES 0 190 { .n_name = "_intrnames" }, 191 #define X_EINTRNAMES 1 192 { .n_name = "_eintrnames" }, 193 #define X_INTRCNT 2 194 { .n_name = "_intrcnt" }, 195 #define X_EINTRCNT 3 196 { .n_name = "_eintrcnt" }, 197 #define X_INTRNL_SIZE 4 198 { .n_name = NULL }, 199 }; 200 201 202 /* 203 * Namelist for hash statistics 204 */ 205 struct nlist hashnl[] = 206 { 207 #define X_NFSNODE 0 208 { .n_name = "_nfsnodehash" }, 209 #define X_NFSNODETBL 1 210 { .n_name = "_nfsnodehashtbl" }, 211 #define X_IHASH 2 212 { .n_name = "_ihash" }, 213 #define X_IHASHTBL 3 214 { .n_name = "_ihashtbl" }, 215 #define X_BUFHASH 4 216 { .n_name = "_bufhash" }, 217 #define X_BUFHASHTBL 5 218 { .n_name = "_bufhashtbl" }, 219 #define X_UIHASH 6 220 { .n_name = "_uihash" }, 221 #define X_UIHASHTBL 7 222 { .n_name = "_uihashtbl" }, 223 #define X_IFADDRHASH 8 224 { .n_name = "_in_ifaddrhash" }, 225 #define X_IFADDRHASHTBL 9 226 { .n_name = "_in_ifaddrhashtbl" }, 227 #define X_NCHASH 10 228 { .n_name = "_nchash" }, 229 #define X_NCHASHTBL 11 230 { .n_name = "_nchashtbl" }, 231 #define X_NCVHASH 12 232 { .n_name = "_ncvhash" }, 233 #define X_NCVHASHTBL 13 234 { .n_name = "_ncvhashtbl" }, 235 #define X_HASHNL_SIZE 14 /* must be last */ 236 { .n_name = NULL }, 237 }; 238 239 /* 240 * Namelist for kernel histories 241 */ 242 struct nlist histnl[] = 243 { 244 { .n_name = "_kern_histories" }, 245 #define X_KERN_HISTORIES 0 246 { .n_name = NULL }, 247 }; 248 249 250 #define KILO 1024 251 252 struct cpu_counter { 253 uint64_t nintr; 254 uint64_t nsyscall; 255 uint64_t nswtch; 256 uint64_t nfault; 257 uint64_t ntrap; 258 uint64_t nsoft; 259 } cpucounter, ocpucounter; 260 261 struct uvmexp uvmexp, ouvmexp; 262 int ndrives; 263 264 int winlines = 20; 265 266 kvm_t *kd; 267 268 269 #define FORKSTAT 1<<0 270 #define INTRSTAT 1<<1 271 #define MEMSTAT 1<<2 272 #define SUMSTAT 1<<3 273 #define EVCNTSTAT 1<<4 274 #define VMSTAT 1<<5 275 #define HISTLIST 1<<6 276 #define HISTDUMP 1<<7 277 #define HASHSTAT 1<<8 278 #define HASHLIST 1<<9 279 #define VMTOTAL 1<<10 280 #define POOLCACHESTAT 1<<11 281 282 /* 283 * Print single word. `ovflow' is number of characters didn't fit 284 * on the last word. `fmt' is a format string to print this word. 285 * It must contain asterisk for field width. `width' is a width 286 * occupied by this word. `fixed' is a number of constant chars in 287 * `fmt'. `val' is a value to be printed using format string `fmt'. 288 */ 289 #define PRWORD(ovflw, fmt, width, fixed, val) do { \ 290 (ovflw) += printf((fmt), \ 291 (width) - (fixed) - (ovflw) > 0 ? \ 292 (width) - (fixed) - (ovflw) : 0, \ 293 (val)) - (width); \ 294 if ((ovflw) < 0) \ 295 (ovflw) = 0; \ 296 } while (/* CONSTCOND */0) 297 298 void cpustats(int *); 299 void cpucounters(struct cpu_counter *); 300 void deref_kptr(const void *, void *, size_t, const char *); 301 void drvstats(int *); 302 void doevcnt(int verbose, int type); 303 void dohashstat(int, int, const char *); 304 void dointr(int verbose); 305 void domem(void); 306 void dopool(int, int); 307 void dopoolcache(void); 308 void dosum(void); 309 void dovmstat(struct timespec *, int); 310 void print_total_hdr(void); 311 void dovmtotal(struct timespec *, int); 312 void kread(struct nlist *, int, void *, size_t); 313 int kreadc(struct nlist *, int, void *, size_t); 314 void needhdr(int); 315 void getnlist(int); 316 long getuptime(void); 317 void printhdr(void); 318 long pct(long, long); 319 void usage(void); 320 void doforkst(void); 321 322 void hist_traverse(int, const char *); 323 void hist_dodump(struct kern_history *); 324 325 int main(int, char **); 326 char **choosedrives(char **); 327 328 /* Namelist and memory file names. */ 329 char *nlistf, *memf; 330 331 /* allow old usage [vmstat 1] */ 332 #define BACKWARD_COMPATIBILITY 333 334 static const int vmmeter_mib[] = { CTL_VM, VM_METER }; 335 static const int uvmexp2_mib[] = { CTL_VM, VM_UVMEXP2 }; 336 static const int boottime_mib[] = { CTL_KERN, KERN_BOOTTIME }; 337 static char kvm_errbuf[_POSIX2_LINE_MAX]; 338 339 int 340 main(int argc, char *argv[]) 341 { 342 int c, todo, verbose, wide; 343 struct timespec interval; 344 int reps; 345 gid_t egid = getegid(); 346 const char *histname, *hashname; 347 348 histname = hashname = NULL; 349 (void)setegid(getgid()); 350 memf = nlistf = NULL; 351 reps = todo = verbose = wide = 0; 352 interval.tv_sec = 0; 353 interval.tv_nsec = 0; 354 while ((c = getopt(argc, argv, "Cc:efh:HilLM:mN:stu:UvWw:")) != -1) { 355 switch (c) { 356 case 'c': 357 reps = atoi(optarg); 358 break; 359 case 'C': 360 todo |= POOLCACHESTAT; 361 break; 362 case 'e': 363 todo |= EVCNTSTAT; 364 break; 365 case 'f': 366 todo |= FORKSTAT; 367 break; 368 case 'h': 369 hashname = optarg; 370 /* FALLTHROUGH */ 371 case 'H': 372 todo |= HASHSTAT; 373 break; 374 case 'i': 375 todo |= INTRSTAT; 376 break; 377 case 'l': 378 todo |= HISTLIST; 379 break; 380 case 'L': 381 todo |= HASHLIST; 382 break; 383 case 'M': 384 memf = optarg; 385 break; 386 case 'm': 387 todo |= MEMSTAT; 388 break; 389 case 'N': 390 nlistf = optarg; 391 break; 392 case 's': 393 todo |= SUMSTAT; 394 break; 395 case 't': 396 todo |= VMTOTAL; 397 break; 398 case 'u': 399 histname = optarg; 400 /* FALLTHROUGH */ 401 case 'U': 402 todo |= HISTDUMP; 403 break; 404 case 'v': 405 verbose++; 406 break; 407 case 'W': 408 wide++; 409 break; 410 case 'w': 411 interval.tv_sec = atol(optarg); 412 break; 413 case '?': 414 default: 415 usage(); 416 } 417 } 418 argc -= optind; 419 argv += optind; 420 421 if (todo == 0) 422 todo = VMSTAT; 423 424 /* 425 * Discard setgid privileges. If not the running kernel, we toss 426 * them away totally so that bad guys can't print interesting stuff 427 * from kernel memory, otherwise switch back to kmem for the 428 * duration of the kvm_openfiles() call. 429 */ 430 if (nlistf != NULL || memf != NULL) 431 (void)setgid(getgid()); 432 else 433 (void)setegid(egid); 434 435 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, kvm_errbuf); 436 if (kd == NULL) { 437 if (nlistf != NULL || memf != NULL) { 438 errx(1, "kvm_openfiles: %s", kvm_errbuf); 439 } 440 } 441 442 if (nlistf == NULL && memf == NULL) 443 (void)setgid(getgid()); 444 445 446 if (todo & VMSTAT) { 447 struct winsize winsize; 448 449 (void)drvinit(0);/* Initialize disk stats, no disks selected. */ 450 451 (void)setgid(getgid()); /* don't need privs anymore */ 452 453 argv = choosedrives(argv); /* Select disks. */ 454 winsize.ws_row = 0; 455 (void)ioctl(STDOUT_FILENO, TIOCGWINSZ, &winsize); 456 if (winsize.ws_row > 0) 457 winlines = winsize.ws_row; 458 459 } 460 461 #ifdef BACKWARD_COMPATIBILITY 462 if (*argv) { 463 interval.tv_sec = atol(*argv); 464 if (*++argv) 465 reps = atoi(*argv); 466 } 467 #endif 468 469 if (interval.tv_sec) { 470 if (!reps) 471 reps = -1; 472 } else if (reps) 473 interval.tv_sec = 1; 474 475 476 /* 477 * Statistics dumping is incompatible with the default 478 * VMSTAT/dovmstat() output. So perform the interval/reps handling 479 * for it here. 480 */ 481 if ((todo & (VMSTAT|VMTOTAL)) == 0) { 482 for (;;) { 483 if (todo & (HISTLIST|HISTDUMP)) { 484 if ((todo & (HISTLIST|HISTDUMP)) == 485 (HISTLIST|HISTDUMP)) 486 errx(1, "you may list or dump," 487 " but not both!"); 488 hist_traverse(todo, histname); 489 (void)putchar('\n'); 490 } 491 if (todo & FORKSTAT) { 492 doforkst(); 493 (void)putchar('\n'); 494 } 495 if (todo & MEMSTAT) { 496 domem(); 497 dopool(verbose, wide); 498 (void)putchar('\n'); 499 } 500 if (todo & POOLCACHESTAT) { 501 dopoolcache(); 502 (void)putchar('\n'); 503 } 504 if (todo & SUMSTAT) { 505 dosum(); 506 (void)putchar('\n'); 507 } 508 if (todo & INTRSTAT) { 509 dointr(verbose); 510 (void)putchar('\n'); 511 } 512 if (todo & EVCNTSTAT) { 513 doevcnt(verbose, EVCNT_TYPE_ANY); 514 (void)putchar('\n'); 515 } 516 if (todo & (HASHLIST|HASHSTAT)) { 517 if ((todo & (HASHLIST|HASHSTAT)) == 518 (HASHLIST|HASHSTAT)) 519 errx(1, "you may list or display," 520 " but not both!"); 521 dohashstat(verbose, todo, hashname); 522 (void)putchar('\n'); 523 } 524 525 fflush(stdout); 526 if (reps >= 0 && --reps <=0) 527 break; 528 (void)nanosleep(&interval, NULL); 529 } 530 } else { 531 if ((todo & (VMSTAT|VMTOTAL)) == (VMSTAT|VMTOTAL)) { 532 errx(1, "you may not both do vmstat and vmtotal"); 533 } 534 if (todo & VMSTAT) 535 dovmstat(&interval, reps); 536 if (todo & VMTOTAL) 537 dovmtotal(&interval, reps); 538 } 539 return 0; 540 } 541 542 void 543 getnlist(int todo) 544 { 545 static int namelist_done = 0; 546 static int hash_done = 0; 547 static int hist_done = 0; 548 static int intr_done = 0; 549 int c; 550 size_t i; 551 552 if (kd == NULL) 553 errx(1, "kvm_openfiles: %s", kvm_errbuf); 554 555 if (!namelist_done) { 556 namelist_done = 1; 557 if ((c = kvm_nlist(kd, namelist)) != 0) { 558 int doexit = 0; 559 if (c == -1) 560 errx(1, "kvm_nlist: %s %s", 561 "namelist", kvm_geterr(kd)); 562 for (i = 0; i < __arraycount(namelist)-1; i++) 563 if (namelist[i].n_type == 0 && 564 i != X_TIME_SECOND && 565 i != X_TIME) { 566 if (doexit++ == 0) 567 (void)fprintf(stderr, 568 "%s: undefined symbols:", 569 getprogname()); 570 (void)fprintf(stderr, " %s", 571 namelist[i].n_name); 572 } 573 if (doexit) { 574 (void)fputc('\n', stderr); 575 exit(1); 576 } 577 } 578 } 579 if ((todo & INTRSTAT) && !intr_done) { 580 intr_done = 1; 581 (void) kvm_nlist(kd, intrnl); 582 } 583 if ((todo & HASHLIST) && !hash_done) { 584 hash_done = 1; 585 if ((c = kvm_nlist(kd, hashnl)) == -1 || c == X_HASHNL_SIZE) 586 errx(1, "kvm_nlist: %s %s", "hashnl", kvm_geterr(kd)); 587 } 588 if ((todo & (HISTLIST|HISTDUMP)) && !hist_done) { 589 hist_done = 1; 590 if (kvm_nlist(kd, histnl) == -1) 591 errx(1, "kvm_nlist: %s %s", "histnl", kvm_geterr(kd)); 592 } 593 } 594 595 char ** 596 choosedrives(char **argv) 597 { 598 size_t i; 599 600 /* 601 * Choose drives to be displayed. Priority goes to (in order) drives 602 * supplied as arguments, default drives. If everything isn't filled 603 * in and there are drives not taken care of, display the first few 604 * that fit. 605 */ 606 #define BACKWARD_COMPATIBILITY 607 for (ndrives = 0; *argv; ++argv) { 608 #ifdef BACKWARD_COMPATIBILITY 609 if (isdigit((unsigned char)**argv)) 610 break; 611 #endif 612 for (i = 0; i < ndrive; i++) { 613 if (strcmp(dr_name[i], *argv)) 614 continue; 615 drv_select[i] = 1; 616 ++ndrives; 617 break; 618 } 619 } 620 for (i = 0; i < ndrive && ndrives < 2; i++) { 621 if (drv_select[i]) 622 continue; 623 drv_select[i] = 1; 624 ++ndrives; 625 } 626 627 return (argv); 628 } 629 630 long 631 getuptime(void) 632 { 633 static struct timespec boottime; 634 struct timespec now; 635 time_t uptime, nowsec; 636 637 if (memf == NULL) { 638 if (boottime.tv_sec == 0) { 639 size_t buflen = sizeof(boottime); 640 if (sysctl(boottime_mib, __arraycount(boottime_mib), 641 &boottime, &buflen, NULL, 0) == -1) 642 warn("Can't get boottime"); 643 } 644 clock_gettime(CLOCK_REALTIME, &now); 645 } else { 646 if (boottime.tv_sec == 0) 647 kread(namelist, X_BOOTTIME, &boottime, 648 sizeof(boottime)); 649 if (kreadc(namelist, X_TIME_SECOND, &nowsec, sizeof(nowsec))) { 650 /* 651 * XXX this assignment dance can be removed once 652 * timeval tv_sec is SUS mandated time_t 653 */ 654 now.tv_sec = nowsec; 655 now.tv_nsec = 0; 656 } else { 657 kread(namelist, X_TIME, &now, sizeof(now)); 658 } 659 } 660 uptime = now.tv_sec - boottime.tv_sec; 661 if (uptime <= 0 || uptime > 60*60*24*365*10) 662 errx(1, "time makes no sense; namelist must be wrong."); 663 return (uptime); 664 } 665 666 int hz, hdrcnt; 667 668 void 669 print_total_hdr() 670 { 671 672 (void)printf("procs memory\n"); 673 (void)printf("ru dw pw sl"); 674 (void)printf(" total-v active-v active-r"); 675 (void)printf(" vm-sh avm-sh rm-sh arm-sh free\n"); 676 hdrcnt = winlines - 2; 677 } 678 679 void 680 dovmtotal(struct timespec *interval, int reps) 681 { 682 struct vmtotal total; 683 size_t size; 684 685 (void)signal(SIGCONT, needhdr); 686 687 for (hdrcnt = 1;;) { 688 if (!--hdrcnt) 689 print_total_hdr(); 690 if (memf != NULL) { 691 warnx("Unable to get vmtotals from crash dump."); 692 (void)memset(&total, 0, sizeof(total)); 693 } else { 694 size = sizeof(total); 695 if (sysctl(vmmeter_mib, __arraycount(vmmeter_mib), 696 &total, &size, NULL, 0) == -1) { 697 warn("Can't get vmtotals"); 698 (void)memset(&total, 0, sizeof(total)); 699 } 700 } 701 (void)printf("%2d ", total.t_rq); 702 (void)printf("%2d ", total.t_dw); 703 (void)printf("%2d ", total.t_pw); 704 (void)printf("%2d ", total.t_sl); 705 706 (void)printf("%9d ", total.t_vm); 707 (void)printf("%9d ", total.t_avm); 708 (void)printf("%9d ", total.t_arm); 709 (void)printf("%5d ", total.t_vmshr); 710 (void)printf("%6d ", total.t_avmshr); 711 (void)printf("%5d ", total.t_rmshr); 712 (void)printf("%6d ", total.t_armshr); 713 (void)printf("%5d", total.t_free); 714 715 (void)putchar('\n'); 716 717 (void)fflush(stdout); 718 if (reps >= 0 && --reps <= 0) 719 break; 720 721 (void)nanosleep(interval, NULL); 722 } 723 } 724 725 void 726 dovmstat(struct timespec *interval, int reps) 727 { 728 struct vmtotal total; 729 time_t uptime, halfuptime; 730 size_t size; 731 int pagesize = getpagesize(); 732 int ovflw; 733 734 getnlist(VMSTAT); 735 uptime = getuptime(); 736 halfuptime = uptime / 2; 737 (void)signal(SIGCONT, needhdr); 738 739 if (namelist[X_STATHZ].n_type != 0 && namelist[X_STATHZ].n_value != 0) 740 kread(namelist, X_STATHZ, &hz, sizeof(hz)); 741 if (!hz) 742 kread(namelist, X_HZ, &hz, sizeof(hz)); 743 744 kread(namelist, X_CPU_QUEUE, &cpu_queue, sizeof(cpu_queue)); 745 746 for (hdrcnt = 1;;) { 747 if (!--hdrcnt) 748 printhdr(); 749 /* Read new disk statistics */ 750 cpureadstats(); 751 drvreadstats(); 752 tkreadstats(); 753 kread(namelist, X_UVMEXP, &uvmexp, sizeof(uvmexp)); 754 if (memf != NULL) { 755 /* 756 * XXX Can't do this if we're reading a crash 757 * XXX dump because they're lazily-calculated. 758 */ 759 warnx("Unable to get vmtotals from crash dump."); 760 (void)memset(&total, 0, sizeof(total)); 761 } else { 762 size = sizeof(total); 763 if (sysctl(vmmeter_mib, __arraycount(vmmeter_mib), 764 &total, &size, NULL, 0) == -1) { 765 warn("Can't get vmtotals"); 766 (void)memset(&total, 0, sizeof(total)); 767 } 768 } 769 cpucounters(&cpucounter); 770 ovflw = 0; 771 PRWORD(ovflw, " %*d", 2, 1, total.t_rq - 1); 772 PRWORD(ovflw, " %*d", 2, 1, total.t_dw + total.t_pw); 773 #define pgtok(a) (long)((a) * ((uint32_t)pagesize >> 10)) 774 #define rate(x) (u_long)(((x) + halfuptime) / uptime) /* round */ 775 PRWORD(ovflw, " %*ld", 9, 1, pgtok(total.t_avm)); 776 PRWORD(ovflw, " %*ld", 7, 1, pgtok(total.t_free)); 777 PRWORD(ovflw, " %*ld", 5, 1, 778 rate(cpucounter.nfault - ocpucounter.nfault)); 779 PRWORD(ovflw, " %*ld", 4, 1, 780 rate(uvmexp.pdreact - ouvmexp.pdreact)); 781 PRWORD(ovflw, " %*ld", 4, 1, 782 rate(uvmexp.pageins - ouvmexp.pageins)); 783 PRWORD(ovflw, " %*ld", 5, 1, 784 rate(uvmexp.pgswapout - ouvmexp.pgswapout)); 785 PRWORD(ovflw, " %*ld", 5, 1, 786 rate(uvmexp.pdfreed - ouvmexp.pdfreed)); 787 PRWORD(ovflw, " %*ld", 6, 2, 788 rate(uvmexp.pdscans - ouvmexp.pdscans)); 789 drvstats(&ovflw); 790 PRWORD(ovflw, " %*ld", 5, 1, 791 rate(cpucounter.nintr - ocpucounter.nintr)); 792 PRWORD(ovflw, " %*ld", 5, 1, 793 rate(cpucounter.nsyscall - ocpucounter.nsyscall)); 794 PRWORD(ovflw, " %*ld", 4, 1, 795 rate(cpucounter.nswtch - ocpucounter.nswtch)); 796 cpustats(&ovflw); 797 (void)putchar('\n'); 798 (void)fflush(stdout); 799 if (reps >= 0 && --reps <= 0) 800 break; 801 ouvmexp = uvmexp; 802 ocpucounter = cpucounter; 803 uptime = interval->tv_sec; 804 /* 805 * We round upward to avoid losing low-frequency events 806 * (i.e., >= 1 per interval but < 1 per second). 807 */ 808 halfuptime = uptime == 1 ? 0 : (uptime + 1) / 2; 809 (void)nanosleep(interval, NULL); 810 } 811 } 812 813 void 814 printhdr(void) 815 { 816 size_t i; 817 818 (void)printf(" procs memory page%*s", 23, ""); 819 if (ndrives > 0) 820 (void)printf("%s %*sfaults cpu\n", 821 ((ndrives > 1) ? "disks" : "disk"), 822 ((ndrives > 1) ? ndrives * 3 - 4 : 0), ""); 823 else 824 (void)printf("%*s faults cpu\n", 825 ndrives * 3, ""); 826 827 (void)printf(" r b avm fre flt re pi po fr sr "); 828 for (i = 0; i < ndrive; i++) 829 if (drv_select[i]) 830 (void)printf("%c%c ", dr_name[i][0], 831 dr_name[i][strlen(dr_name[i]) - 1]); 832 (void)printf(" in sy cs us sy id\n"); 833 hdrcnt = winlines - 2; 834 } 835 836 /* 837 * Force a header to be prepended to the next output. 838 */ 839 void 840 /*ARGSUSED*/ 841 needhdr(int dummy) 842 { 843 844 hdrcnt = 1; 845 } 846 847 long 848 pct(long top, long bot) 849 { 850 long ans; 851 852 if (bot == 0) 853 return (0); 854 ans = (long)((quad_t)top * 100 / bot); 855 return (ans); 856 } 857 858 #define PCT(top, bot) (int)pct((long)(top), (long)(bot)) 859 860 void 861 dosum(void) 862 { 863 struct nchstats nchstats; 864 u_long nchtotal; 865 struct uvmexp_sysctl uvmexp2; 866 size_t ssize; 867 int active_kernel; 868 struct cpu_counter cc; 869 870 getnlist(INTRSTAT); 871 872 /* 873 * The "active" and "inactive" variables 874 * are now estimated by the kernel and sadly 875 * can not easily be dug out of a crash dump. 876 */ 877 ssize = sizeof(uvmexp2); 878 memset(&uvmexp2, 0, ssize); 879 active_kernel = (memf == NULL); 880 if (active_kernel) { 881 /* only on active kernel */ 882 if (sysctl(uvmexp2_mib, __arraycount(uvmexp2_mib), &uvmexp2, 883 &ssize, NULL, 0) == -1) 884 warn("sysctl vm.uvmexp2 failed"); 885 } 886 887 kread(namelist, X_UVMEXP, &uvmexp, sizeof(uvmexp)); 888 889 (void)printf("%9u bytes per page\n", uvmexp.pagesize); 890 891 (void)printf("%9u page color%s\n", 892 uvmexp.ncolors, uvmexp.ncolors == 1 ? "" : "s"); 893 894 (void)printf("%9u pages managed\n", uvmexp.npages); 895 (void)printf("%9u pages free\n", uvmexp.free); 896 if (active_kernel) { 897 (void)printf("%9" PRIu64 " pages active\n", uvmexp2.active); 898 (void)printf("%9" PRIu64 " pages inactive\n", uvmexp2.inactive); 899 } 900 (void)printf("%9u pages paging\n", uvmexp.paging); 901 (void)printf("%9u pages wired\n", uvmexp.wired); 902 (void)printf("%9u zero pages\n", uvmexp.zeropages); 903 (void)printf("%9u reserve pagedaemon pages\n", 904 uvmexp.reserve_pagedaemon); 905 (void)printf("%9u reserve kernel pages\n", uvmexp.reserve_kernel); 906 (void)printf("%9u anonymous pages\n", uvmexp.anonpages); 907 (void)printf("%9u cached file pages\n", uvmexp.filepages); 908 (void)printf("%9u cached executable pages\n", uvmexp.execpages); 909 910 (void)printf("%9u minimum free pages\n", uvmexp.freemin); 911 (void)printf("%9u target free pages\n", uvmexp.freetarg); 912 (void)printf("%9u maximum wired pages\n", uvmexp.wiredmax); 913 914 (void)printf("%9u swap devices\n", uvmexp.nswapdev); 915 (void)printf("%9u swap pages\n", uvmexp.swpages); 916 (void)printf("%9u swap pages in use\n", uvmexp.swpginuse); 917 (void)printf("%9u swap allocations\n", uvmexp.nswget); 918 919 kread(namelist, X_CPU_QUEUE, &cpu_queue, sizeof(cpu_queue)); 920 cpucounters(&cc); 921 (void)printf("%9" PRIu64 " total faults taken\n", cc.nfault); 922 (void)printf("%9" PRIu64 " traps\n", cc.ntrap); 923 (void)printf("%9" PRIu64 " device interrupts\n", cc.nintr); 924 (void)printf("%9" PRIu64 " CPU context switches\n", cc.nswtch); 925 (void)printf("%9" PRIu64 " software interrupts\n", cc.nsoft); 926 (void)printf("%9" PRIu64 " system calls\n", cc.nsyscall); 927 (void)printf("%9u pagein requests\n", uvmexp.pageins); 928 (void)printf("%9u pageout requests\n", uvmexp.pdpageouts); 929 (void)printf("%9u pages swapped in\n", uvmexp.pgswapin); 930 (void)printf("%9u pages swapped out\n", uvmexp.pgswapout); 931 (void)printf("%9u forks total\n", uvmexp.forks); 932 (void)printf("%9u forks blocked parent\n", uvmexp.forks_ppwait); 933 (void)printf("%9u forks shared address space with parent\n", 934 uvmexp.forks_sharevm); 935 (void)printf("%9u pagealloc zero wanted and avail\n", 936 uvmexp.pga_zerohit); 937 (void)printf("%9u pagealloc zero wanted and not avail\n", 938 uvmexp.pga_zeromiss); 939 (void)printf("%9u aborts of idle page zeroing\n", 940 uvmexp.zeroaborts); 941 (void)printf("%9u pagealloc desired color avail\n", 942 uvmexp.colorhit); 943 (void)printf("%9u pagealloc desired color not avail\n", 944 uvmexp.colormiss); 945 (void)printf("%9u pagealloc local cpu avail\n", 946 uvmexp.cpuhit); 947 (void)printf("%9u pagealloc local cpu not avail\n", 948 uvmexp.cpumiss); 949 950 (void)printf("%9u faults with no memory\n", uvmexp.fltnoram); 951 (void)printf("%9u faults with no anons\n", uvmexp.fltnoanon); 952 (void)printf("%9u faults had to wait on pages\n", uvmexp.fltpgwait); 953 (void)printf("%9u faults found released page\n", uvmexp.fltpgrele); 954 (void)printf("%9u faults relock (%u ok)\n", uvmexp.fltrelck, 955 uvmexp.fltrelckok); 956 (void)printf("%9u anon page faults\n", uvmexp.fltanget); 957 (void)printf("%9u anon retry faults\n", uvmexp.fltanretry); 958 (void)printf("%9u amap copy faults\n", uvmexp.fltamcopy); 959 (void)printf("%9u neighbour anon page faults\n", uvmexp.fltnamap); 960 (void)printf("%9u neighbour object page faults\n", uvmexp.fltnomap); 961 (void)printf("%9u locked pager get faults\n", uvmexp.fltlget); 962 (void)printf("%9u unlocked pager get faults\n", uvmexp.fltget); 963 (void)printf("%9u anon faults\n", uvmexp.flt_anon); 964 (void)printf("%9u anon copy on write faults\n", uvmexp.flt_acow); 965 (void)printf("%9u object faults\n", uvmexp.flt_obj); 966 (void)printf("%9u promote copy faults\n", uvmexp.flt_prcopy); 967 (void)printf("%9u promote zero fill faults\n", uvmexp.flt_przero); 968 969 (void)printf("%9u times daemon wokeup\n",uvmexp.pdwoke); 970 (void)printf("%9u revolutions of the clock hand\n", uvmexp.pdrevs); 971 (void)printf("%9u pages freed by daemon\n", uvmexp.pdfreed); 972 (void)printf("%9u pages scanned by daemon\n", uvmexp.pdscans); 973 (void)printf("%9u anonymous pages scanned by daemon\n", 974 uvmexp.pdanscan); 975 (void)printf("%9u object pages scanned by daemon\n", uvmexp.pdobscan); 976 (void)printf("%9u pages reactivated\n", uvmexp.pdreact); 977 (void)printf("%9u pages found busy by daemon\n", uvmexp.pdbusy); 978 (void)printf("%9u total pending pageouts\n", uvmexp.pdpending); 979 (void)printf("%9u pages deactivated\n", uvmexp.pddeact); 980 981 kread(namelist, X_NCHSTATS, &nchstats, sizeof(nchstats)); 982 nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits + 983 nchstats.ncs_badhits + nchstats.ncs_falsehits + 984 nchstats.ncs_miss + nchstats.ncs_long; 985 (void)printf("%9lu total name lookups\n", nchtotal); 986 (void)printf("%9lu good hits\n", nchstats.ncs_goodhits); 987 (void)printf("%9lu negative hits\n", nchstats.ncs_neghits); 988 (void)printf("%9lu bad hits\n", nchstats.ncs_badhits); 989 (void)printf("%9lu false hits\n", nchstats.ncs_falsehits); 990 (void)printf("%9lu miss\n", nchstats.ncs_miss); 991 (void)printf("%9lu too long\n", nchstats.ncs_long); 992 (void)printf("%9lu pass2 hits\n", nchstats.ncs_pass2); 993 (void)printf("%9lu 2passes\n", nchstats.ncs_2passes); 994 (void)printf( 995 "%9s cache hits (%d%% pos + %d%% neg) system %d%% per-process\n", 996 "", PCT(nchstats.ncs_goodhits, nchtotal), 997 PCT(nchstats.ncs_neghits, nchtotal), 998 PCT(nchstats.ncs_pass2, nchtotal)); 999 (void)printf("%9s deletions %d%%, falsehits %d%%, toolong %d%%\n", "", 1000 PCT(nchstats.ncs_badhits, nchtotal), 1001 PCT(nchstats.ncs_falsehits, nchtotal), 1002 PCT(nchstats.ncs_long, nchtotal)); 1003 } 1004 1005 void 1006 doforkst(void) 1007 { 1008 1009 kread(namelist, X_UVMEXP, &uvmexp, sizeof(uvmexp)); 1010 1011 (void)printf("%u forks total\n", uvmexp.forks); 1012 (void)printf("%u forks blocked parent\n", uvmexp.forks_ppwait); 1013 (void)printf("%u forks shared address space with parent\n", 1014 uvmexp.forks_sharevm); 1015 } 1016 1017 void 1018 drvstats(int *ovflwp) 1019 { 1020 size_t dn; 1021 double etime; 1022 int ovflw = *ovflwp; 1023 1024 /* Calculate disk stat deltas. */ 1025 cpuswap(); 1026 drvswap(); 1027 tkswap(); 1028 etime = cur.cp_etime; 1029 1030 for (dn = 0; dn < ndrive; ++dn) { 1031 if (!drv_select[dn]) 1032 continue; 1033 PRWORD(ovflw, " %*.0f", 3, 1, 1034 (cur.rxfer[dn] + cur.wxfer[dn]) / etime); 1035 } 1036 *ovflwp = ovflw; 1037 } 1038 1039 void 1040 cpucounters(struct cpu_counter *cc) 1041 { 1042 struct cpu_info *ci, *first = NULL; 1043 (void)memset(cc, 0, sizeof(*cc)); 1044 CIRCLEQ_FOREACH(ci, &cpu_queue, ci_data.cpu_qchain) { 1045 struct cpu_info tci; 1046 if ((size_t)kvm_read(kd, (u_long)ci, &tci, sizeof(tci)) 1047 != sizeof(tci)) { 1048 warnx("Can't read cpu info from %p (%s)", 1049 ci, kvm_geterr(kd)); 1050 (void)memset(cc, 0, sizeof(*cc)); 1051 return; 1052 } 1053 if (first == NULL) 1054 first = tci.ci_data.cpu_qchain.cqe_prev; 1055 cc->nintr += tci.ci_data.cpu_nintr; 1056 cc->nsyscall += tci.ci_data.cpu_nsyscall; 1057 cc->nswtch = tci.ci_data.cpu_nswtch; 1058 cc->nfault = tci.ci_data.cpu_nfault; 1059 cc->ntrap = tci.ci_data.cpu_ntrap; 1060 cc->nsoft = tci.ci_data.cpu_nsoft; 1061 ci = &tci; 1062 if (tci.ci_data.cpu_qchain.cqe_next == first) 1063 break; 1064 } 1065 } 1066 1067 void 1068 cpustats(int *ovflwp) 1069 { 1070 int state; 1071 double pcnt, total; 1072 double stat_us, stat_sy, stat_id; 1073 int ovflw = *ovflwp; 1074 1075 total = 0; 1076 for (state = 0; state < CPUSTATES; ++state) 1077 total += cur.cp_time[state]; 1078 if (total) 1079 pcnt = 100 / total; 1080 else 1081 pcnt = 0; 1082 stat_us = (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * pcnt; 1083 stat_sy = (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * pcnt; 1084 stat_id = cur.cp_time[CP_IDLE] * pcnt; 1085 PRWORD(ovflw, " %*.0f", ((stat_sy >= 100) ? 2 : 3), 1, stat_us); 1086 PRWORD(ovflw, " %*.0f", ((stat_us >= 100 || stat_id >= 100) ? 2 : 3), 1, 1087 stat_sy); 1088 PRWORD(ovflw, " %*.0f", 3, 1, stat_id); 1089 *ovflwp = ovflw; 1090 } 1091 1092 void 1093 dointr(int verbose) 1094 { 1095 unsigned long *intrcnt, *ointrcnt; 1096 unsigned long long inttotal, uptime; 1097 int nintr, inamlen; 1098 char *intrname, *ointrname; 1099 1100 getnlist(INTRSTAT); 1101 inttotal = 0; 1102 uptime = getuptime(); 1103 (void)printf("%-34s %16s %8s\n", "interrupt", "total", "rate"); 1104 nintr = intrnl[X_EINTRCNT].n_value - intrnl[X_INTRCNT].n_value; 1105 inamlen = intrnl[X_EINTRNAMES].n_value - intrnl[X_INTRNAMES].n_value; 1106 if (nintr != 0 && inamlen != 0) { 1107 ointrcnt = intrcnt = malloc((size_t)nintr); 1108 ointrname = intrname = malloc((size_t)inamlen); 1109 if (intrcnt == NULL || intrname == NULL) 1110 errx(1, "%s", ""); 1111 kread(intrnl, X_INTRCNT, intrcnt, (size_t)nintr); 1112 kread(intrnl, X_INTRNAMES, intrname, (size_t)inamlen); 1113 nintr /= sizeof(long); 1114 while (--nintr >= 0) { 1115 if (*intrcnt || verbose) 1116 (void)printf("%-34s %16llu %8llu\n", intrname, 1117 (unsigned long long)*intrcnt, 1118 (unsigned long long) 1119 (*intrcnt / uptime)); 1120 intrname += strlen(intrname) + 1; 1121 inttotal += *intrcnt++; 1122 } 1123 free(ointrcnt); 1124 free(ointrname); 1125 } 1126 1127 doevcnt(verbose, EVCNT_TYPE_INTR); 1128 } 1129 1130 void 1131 doevcnt(int verbose, int type) 1132 { 1133 static const char * const evtypes [] = { "misc", "intr", "trap" }; 1134 uint64_t counttotal, uptime; 1135 struct evcntlist allevents; 1136 struct evcnt evcnt, *evptr; 1137 char evgroup[EVCNT_STRING_MAX], evname[EVCNT_STRING_MAX]; 1138 1139 counttotal = 0; 1140 uptime = getuptime(); 1141 if (type == EVCNT_TYPE_ANY) 1142 (void)printf("%-34s %16s %8s %s\n", "event", "total", "rate", 1143 "type"); 1144 1145 if (memf == NULL) do { 1146 const int mib[4] = { CTL_KERN, KERN_EVCNT, type, 1147 verbose ? KERN_EVCNT_COUNT_ANY : KERN_EVCNT_COUNT_NONZERO }; 1148 size_t buflen = 0; 1149 void *buf = NULL; 1150 const struct evcnt_sysctl *evs, *last_evs; 1151 for (;;) { 1152 size_t newlen; 1153 int error; 1154 if (buflen) 1155 buf = malloc(buflen); 1156 error = sysctl(mib, __arraycount(mib), 1157 buf, &newlen, NULL, 0); 1158 if (error) { 1159 /* if the sysctl is unknown, try groveling */ 1160 if (error == ENOENT) 1161 break; 1162 perror("sysctl: kern.evcnt"); 1163 if (buf) 1164 free(buf); 1165 return; 1166 } 1167 if (newlen <= buflen) { 1168 buflen = newlen; 1169 break; 1170 } 1171 if (buf) 1172 free(buf); 1173 buflen = newlen; 1174 } 1175 evs = buf; 1176 last_evs = (void *)((char *)buf + buflen); 1177 buflen /= sizeof(uint64_t); 1178 while (evs < last_evs 1179 && buflen >= sizeof(*evs)/sizeof(uint64_t) 1180 && buflen >= evs->ev_len) { 1181 (void)printf(type == EVCNT_TYPE_ANY ? 1182 "%s %s%*s %16"PRIu64" %8"PRIu64" %s\n" : 1183 "%s %s%*s %16"PRIu64" %8"PRIu64"\n", 1184 evs->ev_strings, 1185 evs->ev_strings + evs->ev_grouplen + 1, 1186 34 - (evs->ev_grouplen + 1 + evs->ev_namelen), "", 1187 evs->ev_count, 1188 evs->ev_count / uptime, 1189 (evs->ev_type < __arraycount(evtypes) ? 1190 evtypes[evs->ev_type] : "?")); 1191 buflen -= evs->ev_len; 1192 counttotal += evs->ev_count; 1193 evs = (const void *)((const uint64_t *)evs + evs->ev_len); 1194 } 1195 free(buf); 1196 if (type != EVCNT_TYPE_ANY) 1197 (void)printf("%-34s %16"PRIu64" %8"PRIu64"\n", 1198 "Total", counttotal, counttotal / uptime); 1199 return; 1200 } while (/*CONSTCOND*/ 0); 1201 1202 getnlist(EVCNTSTAT); 1203 kread(namelist, X_ALLEVENTS, &allevents, sizeof allevents); 1204 evptr = TAILQ_FIRST(&allevents); 1205 while (evptr) { 1206 deref_kptr(evptr, &evcnt, sizeof(evcnt), "event chain trashed"); 1207 1208 evptr = TAILQ_NEXT(&evcnt, ev_list); 1209 if (evcnt.ev_count == 0 && !verbose) 1210 continue; 1211 if (type != EVCNT_TYPE_ANY && evcnt.ev_type != type) 1212 continue; 1213 1214 deref_kptr(evcnt.ev_group, evgroup, 1215 (size_t)evcnt.ev_grouplen + 1, "event chain trashed"); 1216 deref_kptr(evcnt.ev_name, evname, 1217 (size_t)evcnt.ev_namelen + 1, "event chain trashed"); 1218 1219 (void)printf(type == EVCNT_TYPE_ANY ? 1220 "%s %s%*s %16"PRIu64" %8"PRIu64" %s\n" : 1221 "%s %s%*s %16"PRIu64" %8"PRIu64"\n", 1222 evgroup, evname, 1223 34 - (evcnt.ev_grouplen + 1 + evcnt.ev_namelen), "", 1224 evcnt.ev_count, 1225 (evcnt.ev_count / uptime), 1226 (evcnt.ev_type < __arraycount(evtypes) ? 1227 evtypes[evcnt.ev_type] : "?")); 1228 1229 counttotal += evcnt.ev_count; 1230 } 1231 if (type != EVCNT_TYPE_ANY) 1232 (void)printf("%-34s %16"PRIu64" %8"PRIu64"\n", 1233 "Total", counttotal, counttotal / uptime); 1234 } 1235 1236 static char memname[64]; 1237 1238 void 1239 domem(void) 1240 { 1241 struct kmembuckets *kp; 1242 struct malloc_type ks, *ksp; 1243 int i, j; 1244 int len, size, first; 1245 long totuse = 0, totfree = 0, totreq = 0; 1246 struct kmembuckets buckets[MINBUCKET + 16]; 1247 1248 getnlist(MEMSTAT); 1249 kread(namelist, X_KMEMBUCKETS, buckets, sizeof(buckets)); 1250 for (first = 1, i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16; 1251 i++, kp++) { 1252 if (kp->kb_calls == 0) 1253 continue; 1254 if (first) { 1255 (void)printf("Memory statistics by bucket size\n"); 1256 (void)printf( 1257 " Size In Use Free Requests HighWater Couldfree\n"); 1258 first = 0; 1259 } 1260 size = 1 << i; 1261 (void)printf("%8d %8ld %6ld %10ld %7ld %10ld\n", size, 1262 kp->kb_total - kp->kb_totalfree, 1263 kp->kb_totalfree, kp->kb_calls, 1264 kp->kb_highwat, kp->kb_couldfree); 1265 totfree += size * kp->kb_totalfree; 1266 } 1267 1268 /* 1269 * If kmem statistics are not being gathered by the kernel, 1270 * first will still be 1. 1271 */ 1272 if (first) { 1273 warnx("Kmem statistics are not being gathered by the kernel."); 1274 return; 1275 } 1276 1277 (void)printf("\nMemory usage type by bucket size\n"); 1278 (void)printf(" Size Type(s)\n"); 1279 kp = &buckets[MINBUCKET]; 1280 for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) { 1281 if (kp->kb_calls == 0) 1282 continue; 1283 first = 1; 1284 len = 8; 1285 for (kread(namelist, X_KMEMSTAT, &ksp, sizeof(ksp)); 1286 ksp != NULL; ksp = ks.ks_next) { 1287 deref_kptr(ksp, &ks, sizeof(ks), "malloc type"); 1288 if (ks.ks_calls == 0) 1289 continue; 1290 if ((ks.ks_size & j) == 0) 1291 continue; 1292 deref_kptr(ks.ks_shortdesc, memname, 1293 sizeof(memname), "malloc type name"); 1294 len += 2 + strlen(memname); 1295 if (first) 1296 (void)printf("%8d %s", j, memname); 1297 else 1298 (void)printf(","); 1299 if (len >= 80) { 1300 (void)printf("\n\t "); 1301 len = 10 + strlen(memname); 1302 } 1303 if (!first) 1304 (void)printf(" %s", memname); 1305 first = 0; 1306 } 1307 (void)putchar('\n'); 1308 } 1309 1310 (void)printf( 1311 "\nMemory statistics by type Type Kern\n"); 1312 (void)printf( 1313 " Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)\n"); 1314 for (kread(namelist, X_KMEMSTAT, &ksp, sizeof(ksp)); 1315 ksp != NULL; ksp = ks.ks_next) { 1316 deref_kptr(ksp, &ks, sizeof(ks), "malloc type"); 1317 if (ks.ks_calls == 0) 1318 continue; 1319 deref_kptr(ks.ks_shortdesc, memname, 1320 sizeof(memname), "malloc type name"); 1321 (void)printf("%15s %5ld %6ldK %6ldK %6ldK %10ld %5u %5u", 1322 memname, 1323 ks.ks_inuse, howmany(ks.ks_memuse, KILO), 1324 howmany(ks.ks_maxused, KILO), 1325 howmany(ks.ks_limit, KILO), ks.ks_calls, 1326 ks.ks_limblocks, ks.ks_mapblocks); 1327 first = 1; 1328 for (j = 1 << MINBUCKET, i = MINBUCKET; 1329 j < 1 << (MINBUCKET + 16); 1330 j <<= 1, i++) 1331 { 1332 if ((ks.ks_size & j) == 0) 1333 continue; 1334 if (first) 1335 (void)printf(" %d", j); 1336 else 1337 (void)printf(",%d", j); 1338 first = 0; 1339 (void)printf(":%u", ks.ks_active[i - MINBUCKET]); 1340 } 1341 (void)printf("\n"); 1342 totuse += ks.ks_memuse; 1343 totreq += ks.ks_calls; 1344 } 1345 (void)printf("\nMemory totals: In Use Free Requests\n"); 1346 (void)printf(" %7ldK %6ldK %8ld\n\n", 1347 howmany(totuse, KILO), howmany(totfree, KILO), totreq); 1348 } 1349 1350 void 1351 dopool(int verbose, int wide) 1352 { 1353 int first, ovflw; 1354 void *addr; 1355 long total, inuse, this_total, this_inuse; 1356 TAILQ_HEAD(,pool) pool_head; 1357 struct pool pool, *pp = &pool; 1358 struct pool_allocator pa; 1359 char name[32], maxp[32]; 1360 1361 getnlist(MEMSTAT); 1362 kread(namelist, X_POOLHEAD, &pool_head, sizeof(pool_head)); 1363 addr = TAILQ_FIRST(&pool_head); 1364 1365 total = inuse = 0; 1366 1367 for (first = 1; addr != NULL; addr = TAILQ_NEXT(pp, pr_poollist) ) { 1368 deref_kptr(addr, pp, sizeof(*pp), "pool chain trashed"); 1369 deref_kptr(pp->pr_alloc, &pa, sizeof(pa), 1370 "pool allocator trashed"); 1371 deref_kptr(pp->pr_wchan, name, sizeof(name), 1372 "pool wait channel trashed"); 1373 name[sizeof(name)-1] = '\0'; 1374 1375 if (first) { 1376 (void)printf("Memory resource pool statistics\n"); 1377 (void)printf( 1378 "%-*s%*s%*s%5s%*s%s%s%*s%*s%6s%s%6s%6s%6s%5s%s%s\n", 1379 wide ? 16 : 11, "Name", 1380 wide ? 6 : 5, "Size", 1381 wide ? 12 : 9, "Requests", 1382 "Fail", 1383 wide ? 12 : 9, "Releases", 1384 wide ? " InUse" : "", 1385 wide ? " Avail" : "", 1386 wide ? 7 : 6, "Pgreq", 1387 wide ? 7 : 6, "Pgrel", 1388 "Npage", 1389 wide ? " PageSz" : "", 1390 "Hiwat", 1391 "Minpg", 1392 "Maxpg", 1393 "Idle", 1394 wide ? " Flags" : "", 1395 wide ? " Util" : ""); 1396 first = 0; 1397 } 1398 if (pp->pr_nget == 0 && !verbose) 1399 continue; 1400 if (pp->pr_maxpages == UINT_MAX) 1401 (void)snprintf(maxp, sizeof(maxp), "inf"); 1402 else 1403 (void)snprintf(maxp, sizeof(maxp), "%u", 1404 pp->pr_maxpages); 1405 ovflw = 0; 1406 PRWORD(ovflw, "%-*s", wide ? 16 : 11, 0, name); 1407 PRWORD(ovflw, " %*u", wide ? 6 : 5, 1, pp->pr_size); 1408 PRWORD(ovflw, " %*lu", wide ? 12 : 9, 1, pp->pr_nget); 1409 PRWORD(ovflw, " %*lu", 5, 1, pp->pr_nfail); 1410 PRWORD(ovflw, " %*lu", wide ? 12 : 9, 1, pp->pr_nput); 1411 if (wide) 1412 PRWORD(ovflw, " %*u", 7, 1, pp->pr_nout); 1413 if (wide) 1414 PRWORD(ovflw, " %*u", 6, 1, pp->pr_nitems); 1415 PRWORD(ovflw, " %*lu", wide ? 7 : 6, 1, pp->pr_npagealloc); 1416 PRWORD(ovflw, " %*lu", wide ? 7 : 6, 1, pp->pr_npagefree); 1417 PRWORD(ovflw, " %*u", 6, 1, pp->pr_npages); 1418 if (wide) 1419 PRWORD(ovflw, " %*u", 7, 1, pa.pa_pagesz); 1420 PRWORD(ovflw, " %*u", 6, 1, pp->pr_hiwat); 1421 PRWORD(ovflw, " %*u", 6, 1, pp->pr_minpages); 1422 PRWORD(ovflw, " %*s", 6, 1, maxp); 1423 PRWORD(ovflw, " %*lu", 5, 1, pp->pr_nidle); 1424 if (wide) 1425 PRWORD(ovflw, " 0x%0*x", 4, 1, 1426 pp->pr_flags | pp->pr_roflags); 1427 1428 this_inuse = pp->pr_nout * pp->pr_size; 1429 this_total = pp->pr_npages * pa.pa_pagesz; 1430 if (pp->pr_roflags & PR_RECURSIVE) { 1431 /* 1432 * Don't count in-use memory, since it's part 1433 * of another pool and will be accounted for 1434 * there. 1435 */ 1436 total += (this_total - this_inuse); 1437 } else { 1438 inuse += this_inuse; 1439 total += this_total; 1440 } 1441 if (wide) { 1442 if (this_total == 0) 1443 (void)printf(" ---"); 1444 else 1445 (void)printf(" %5.1f%%", 1446 (100.0 * this_inuse) / this_total); 1447 } 1448 (void)printf("\n"); 1449 } 1450 1451 inuse /= KILO; 1452 total /= KILO; 1453 (void)printf( 1454 "\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n", 1455 inuse, total, (100.0 * inuse) / total); 1456 } 1457 1458 void 1459 dopoolcache(void) 1460 { 1461 struct pool_cache pool_cache, *pc = &pool_cache; 1462 pool_cache_cpu_t cache_cpu, *cc = &cache_cpu; 1463 TAILQ_HEAD(,pool) pool_head; 1464 struct pool pool, *pp = &pool; 1465 char name[32]; 1466 uint64_t cpuhit, cpumiss, tot; 1467 void *addr; 1468 int first, ovflw; 1469 size_t i; 1470 double p; 1471 1472 getnlist(POOLCACHESTAT); 1473 kread(namelist, X_POOLHEAD, &pool_head, sizeof(pool_head)); 1474 addr = TAILQ_FIRST(&pool_head); 1475 1476 for (first = 1; addr != NULL; addr = TAILQ_NEXT(pp, pr_poollist) ) { 1477 deref_kptr(addr, pp, sizeof(*pp), "pool chain trashed"); 1478 if (pp->pr_cache == NULL) 1479 continue; 1480 deref_kptr(pp->pr_wchan, name, sizeof(name), 1481 "pool wait channel trashed"); 1482 deref_kptr(pp->pr_cache, pc, sizeof(*pc), "pool cache trashed"); 1483 name[sizeof(name)-1] = '\0'; 1484 1485 cpuhit = 0; 1486 cpumiss = 0; 1487 for (i = 0; i < sizeof(pc->pc_cpus) / sizeof(pc->pc_cpus[0]); 1488 i++) { 1489 if ((addr = pc->pc_cpus[i]) == NULL) 1490 continue; 1491 deref_kptr(addr, cc, sizeof(*cc), 1492 "pool cache cpu trashed"); 1493 cpuhit += cc->cc_hits; 1494 cpumiss += cc->cc_misses; 1495 } 1496 1497 if (first) { 1498 (void)printf("Pool cache statistics.\n"); 1499 (void)printf("%-*s%*s%*s%*s%*s%*s%*s%*s%*s%*s\n", 1500 12, "Name", 1501 6, "Spin", 1502 6, "GrpSz", 1503 5, "Full", 1504 5, "Emty", 1505 10, "PoolLayer", 1506 11, "CacheLayer", 1507 6, "Hit%", 1508 12, "CpuLayer", 1509 6, "Hit%" 1510 ); 1511 first = 0; 1512 } 1513 1514 ovflw = 0; 1515 PRWORD(ovflw, "%-*s", 13, 1, name); 1516 PRWORD(ovflw, " %*llu", 6, 1, (long long)pc->pc_contended); 1517 PRWORD(ovflw, " %*u", 6, 1, pc->pc_pcgsize); 1518 PRWORD(ovflw, " %*u", 5, 1, pc->pc_nfull); 1519 PRWORD(ovflw, " %*u", 5, 1, pc->pc_nempty); 1520 PRWORD(ovflw, " %*llu", 10, 1, (long long)pc->pc_misses); 1521 1522 tot = pc->pc_hits + pc->pc_misses; 1523 p = pc->pc_hits * 100.0 / (tot); 1524 PRWORD(ovflw, " %*llu", 11, 1, (long long)tot); 1525 PRWORD(ovflw, " %*.1f", 6, 1, p); 1526 1527 tot = cpuhit + cpumiss; 1528 p = cpuhit * 100.0 / (tot); 1529 PRWORD(ovflw, " %*llu", 12, 1, (long long)tot); 1530 PRWORD(ovflw, " %*.1f", 6, 1, p); 1531 printf("\n"); 1532 } 1533 } 1534 1535 enum hashtype { /* from <sys/systm.h> */ 1536 HASH_LIST, 1537 HASH_TAILQ 1538 }; 1539 1540 struct uidinfo { /* XXX: no kernel header file */ 1541 LIST_ENTRY(uidinfo) ui_hash; 1542 uid_t ui_uid; 1543 long ui_proccnt; 1544 }; 1545 1546 struct kernel_hash { 1547 const char * description; /* description */ 1548 int hashsize; /* nlist index for hash size */ 1549 int hashtbl; /* nlist index for hash table */ 1550 enum hashtype type; /* type of hash table */ 1551 size_t offset; /* offset of {LIST,TAILQ}_NEXT */ 1552 } khashes[] = 1553 { 1554 { 1555 "buffer hash", 1556 X_BUFHASH, X_BUFHASHTBL, 1557 HASH_LIST, offsetof(struct buf, b_hash) 1558 }, { 1559 "inode cache (ihash)", 1560 X_IHASH, X_IHASHTBL, 1561 HASH_LIST, offsetof(struct inode, i_hash) 1562 }, { 1563 "ipv4 address -> interface hash", 1564 X_IFADDRHASH, X_IFADDRHASHTBL, 1565 HASH_LIST, offsetof(struct in_ifaddr, ia_hash), 1566 }, { 1567 "name cache hash", 1568 X_NCHASH, X_NCHASHTBL, 1569 HASH_LIST, offsetof(struct namecache, nc_hash), 1570 }, { 1571 "name cache directory hash", 1572 X_NCVHASH, X_NCVHASHTBL, 1573 HASH_LIST, offsetof(struct namecache, nc_vhash), 1574 }, { 1575 "user info (uid -> used processes) hash", 1576 X_UIHASH, X_UIHASHTBL, 1577 HASH_LIST, offsetof(struct uidinfo, ui_hash), 1578 }, { 1579 NULL, -1, -1, 0, 0, 1580 } 1581 }; 1582 1583 void 1584 dohashstat(int verbose, int todo, const char *hashname) 1585 { 1586 LIST_HEAD(, generic) *hashtbl_list; 1587 TAILQ_HEAD(, generic) *hashtbl_tailq; 1588 struct kernel_hash *curhash; 1589 void *hashaddr, *hashbuf, *nhashbuf, *nextaddr; 1590 size_t elemsize, hashbufsize, thissize; 1591 u_long hashsize, i; 1592 int used, items, chain, maxchain; 1593 1594 hashbuf = NULL; 1595 hashbufsize = 0; 1596 1597 getnlist(todo); 1598 if (todo & HASHLIST) { 1599 (void)printf("Supported hashes:\n"); 1600 for (curhash = khashes; curhash->description; curhash++) { 1601 if (hashnl[curhash->hashsize].n_value == 0 || 1602 hashnl[curhash->hashtbl].n_value == 0) 1603 continue; 1604 (void)printf("\t%-16s%s\n", 1605 hashnl[curhash->hashsize].n_name + 1, 1606 curhash->description); 1607 } 1608 return; 1609 } 1610 1611 if (hashname != NULL) { 1612 for (curhash = khashes; curhash->description; curhash++) { 1613 if (strcmp(hashnl[curhash->hashsize].n_name + 1, 1614 hashname) == 0 && 1615 hashnl[curhash->hashsize].n_value != 0 && 1616 hashnl[curhash->hashtbl].n_value != 0) 1617 break; 1618 } 1619 if (curhash->description == NULL) { 1620 warnx("%s: no such hash", hashname); 1621 return; 1622 } 1623 } 1624 1625 (void)printf( 1626 "%-16s %8s %8s %8s %8s %8s %8s\n" 1627 "%-16s %8s %8s %8s %8s %8s %8s\n", 1628 "", "total", "used", "util", "num", "average", "maximum", 1629 "hash table", "buckets", "buckets", "%", "items", "chain", 1630 "chain"); 1631 1632 for (curhash = khashes; curhash->description; curhash++) { 1633 if (hashnl[curhash->hashsize].n_value == 0 || 1634 hashnl[curhash->hashtbl].n_value == 0) 1635 continue; 1636 if (hashname != NULL && 1637 strcmp(hashnl[curhash->hashsize].n_name + 1, hashname)) 1638 continue; 1639 elemsize = curhash->type == HASH_LIST ? 1640 sizeof(*hashtbl_list) : sizeof(*hashtbl_tailq); 1641 deref_kptr((void *)hashnl[curhash->hashsize].n_value, 1642 &hashsize, sizeof(hashsize), 1643 hashnl[curhash->hashsize].n_name); 1644 hashsize++; 1645 deref_kptr((void *)hashnl[curhash->hashtbl].n_value, 1646 &hashaddr, sizeof(hashaddr), 1647 hashnl[curhash->hashtbl].n_name); 1648 if (verbose) 1649 (void)printf( 1650 "%s %lu, %s %p, offset %ld, elemsize %llu\n", 1651 hashnl[curhash->hashsize].n_name + 1, hashsize, 1652 hashnl[curhash->hashtbl].n_name + 1, hashaddr, 1653 (long)curhash->offset, 1654 (unsigned long long)elemsize); 1655 thissize = hashsize * elemsize; 1656 if (hashbuf == NULL || thissize > hashbufsize) { 1657 if ((nhashbuf = realloc(hashbuf, thissize)) == NULL) 1658 errx(1, "malloc hashbuf %llu", 1659 (unsigned long long)hashbufsize); 1660 hashbuf = nhashbuf; 1661 hashbufsize = thissize; 1662 } 1663 deref_kptr(hashaddr, hashbuf, thissize, 1664 hashnl[curhash->hashtbl].n_name); 1665 used = 0; 1666 items = maxchain = 0; 1667 if (curhash->type == HASH_LIST) { 1668 hashtbl_list = hashbuf; 1669 hashtbl_tailq = NULL; 1670 } else { 1671 hashtbl_list = NULL; 1672 hashtbl_tailq = hashbuf; 1673 } 1674 for (i = 0; i < hashsize; i++) { 1675 if (curhash->type == HASH_LIST) 1676 nextaddr = LIST_FIRST(&hashtbl_list[i]); 1677 else 1678 nextaddr = TAILQ_FIRST(&hashtbl_tailq[i]); 1679 if (nextaddr == NULL) 1680 continue; 1681 if (verbose) 1682 (void)printf("%5lu: %p\n", i, nextaddr); 1683 used++; 1684 chain = 0; 1685 do { 1686 chain++; 1687 deref_kptr((char *)nextaddr + curhash->offset, 1688 &nextaddr, sizeof(void *), 1689 "hash chain corrupted"); 1690 if (verbose > 1) 1691 (void)printf("got nextaddr as %p\n", 1692 nextaddr); 1693 } while (nextaddr != NULL); 1694 items += chain; 1695 if (verbose && chain > 1) 1696 (void)printf("\tchain = %d\n", chain); 1697 if (chain > maxchain) 1698 maxchain = chain; 1699 } 1700 (void)printf("%-16s %8ld %8d %8.2f %8d %8.2f %8d\n", 1701 hashnl[curhash->hashsize].n_name + 1, 1702 hashsize, used, used * 100.0 / hashsize, 1703 items, used ? (double)items / used : 0.0, maxchain); 1704 } 1705 } 1706 1707 /* 1708 * kreadc like kread but returns 1 if sucessful, 0 otherwise 1709 */ 1710 int 1711 kreadc(struct nlist *nl, int nlx, void *addr, size_t size) 1712 { 1713 const char *sym; 1714 1715 sym = nl[nlx].n_name; 1716 if (*sym == '_') 1717 ++sym; 1718 if (nl[nlx].n_type == 0 || nl[nlx].n_value == 0) 1719 return 0; 1720 deref_kptr((void *)nl[nlx].n_value, addr, size, sym); 1721 return 1; 1722 } 1723 1724 /* 1725 * kread reads something from the kernel, given its nlist index in namelist[]. 1726 */ 1727 void 1728 kread(struct nlist *nl, int nlx, void *addr, size_t size) 1729 { 1730 const char *sym; 1731 1732 sym = nl[nlx].n_name; 1733 if (*sym == '_') 1734 ++sym; 1735 if (nl[nlx].n_type == 0 || nl[nlx].n_value == 0) 1736 errx(1, "symbol %s not defined", sym); 1737 deref_kptr((void *)nl[nlx].n_value, addr, size, sym); 1738 } 1739 1740 /* 1741 * Dereference the kernel pointer `kptr' and fill in the local copy 1742 * pointed to by `ptr'. The storage space must be pre-allocated, 1743 * and the size of the copy passed in `len'. 1744 */ 1745 void 1746 deref_kptr(const void *kptr, void *ptr, size_t len, const char *msg) 1747 { 1748 1749 if (*msg == '_') 1750 msg++; 1751 if ((size_t)kvm_read(kd, (u_long)kptr, (char *)ptr, len) != len) 1752 errx(1, "kptr %lx: %s: %s", (u_long)kptr, msg, kvm_geterr(kd)); 1753 } 1754 1755 /* 1756 * Traverse the kernel history buffers, performing the requested action. 1757 * 1758 * Note, we assume that if we're not listing, we're dumping. 1759 */ 1760 void 1761 hist_traverse(int todo, const char *histname) 1762 { 1763 struct kern_history_head histhead; 1764 struct kern_history hist, *histkva; 1765 char *name = NULL; 1766 size_t namelen = 0; 1767 1768 getnlist(todo); 1769 if (histnl[0].n_value == 0) { 1770 warnx("kernel history is not compiled into the kernel."); 1771 return; 1772 } 1773 1774 deref_kptr((void *)histnl[X_KERN_HISTORIES].n_value, &histhead, 1775 sizeof(histhead), histnl[X_KERN_HISTORIES].n_name); 1776 1777 if (histhead.lh_first == NULL) { 1778 warnx("No active kernel history logs."); 1779 return; 1780 } 1781 1782 if (todo & HISTLIST) 1783 (void)printf("Active kernel histories:"); 1784 1785 for (histkva = LIST_FIRST(&histhead); histkva != NULL; 1786 histkva = LIST_NEXT(&hist, list)) { 1787 deref_kptr(histkva, &hist, sizeof(hist), "histkva"); 1788 if (name == NULL || hist.namelen > namelen) { 1789 if (name != NULL) 1790 free(name); 1791 namelen = hist.namelen; 1792 if ((name = malloc(namelen + 1)) == NULL) 1793 err(1, "malloc history name"); 1794 } 1795 1796 deref_kptr(hist.name, name, namelen, "history name"); 1797 name[namelen] = '\0'; 1798 if (todo & HISTLIST) 1799 (void)printf(" %s", name); 1800 else { 1801 /* 1802 * If we're dumping all histories, do it, else 1803 * check to see if this is the one we want. 1804 */ 1805 if (histname == NULL || strcmp(histname, name) == 0) { 1806 if (histname == NULL) 1807 (void)printf( 1808 "\nkernel history `%s':\n", name); 1809 hist_dodump(&hist); 1810 } 1811 } 1812 } 1813 1814 if (todo & HISTLIST) 1815 (void)putchar('\n'); 1816 1817 if (name != NULL) 1818 free(name); 1819 } 1820 1821 /* 1822 * Actually dump the history buffer at the specified KVA. 1823 */ 1824 void 1825 hist_dodump(struct kern_history *histp) 1826 { 1827 struct kern_history_ent *histents, *e; 1828 size_t histsize; 1829 char *fmt = NULL, *fn = NULL; 1830 size_t fmtlen = 0, fnlen = 0; 1831 unsigned i; 1832 1833 histsize = sizeof(struct kern_history_ent) * histp->n; 1834 1835 if ((histents = malloc(histsize)) == NULL) 1836 err(1, "malloc history entries"); 1837 1838 (void)memset(histents, 0, histsize); 1839 1840 deref_kptr(histp->e, histents, histsize, "history entries"); 1841 i = histp->f; 1842 do { 1843 e = &histents[i]; 1844 if (e->fmt != NULL) { 1845 if (fmt == NULL || e->fmtlen > fmtlen) { 1846 if (fmt != NULL) 1847 free(fmt); 1848 fmtlen = e->fmtlen; 1849 if ((fmt = malloc(fmtlen + 1)) == NULL) 1850 err(1, "malloc printf format"); 1851 } 1852 if (fn == NULL || e->fnlen > fnlen) { 1853 if (fn != NULL) 1854 free(fn); 1855 fnlen = e->fnlen; 1856 if ((fn = malloc(fnlen + 1)) == NULL) 1857 err(1, "malloc function name"); 1858 } 1859 1860 deref_kptr(e->fmt, fmt, fmtlen, "printf format"); 1861 fmt[fmtlen] = '\0'; 1862 1863 deref_kptr(e->fn, fn, fnlen, "function name"); 1864 fn[fnlen] = '\0'; 1865 1866 (void)printf("%06ld.%06ld ", (long int)e->tv.tv_sec, 1867 (long int)e->tv.tv_usec); 1868 (void)printf("%s#%ld: ", fn, e->call); 1869 (void)printf(fmt, e->v[0], e->v[1], e->v[2], e->v[3]); 1870 (void)putchar('\n'); 1871 } 1872 i = (i + 1) % histp->n; 1873 } while (i != histp->f); 1874 1875 free(histents); 1876 if (fmt != NULL) 1877 free(fmt); 1878 if (fn != NULL) 1879 free(fn); 1880 } 1881 1882 void 1883 usage(void) 1884 { 1885 1886 (void)fprintf(stderr, 1887 "usage: %s [-CefHiLlmstUvW] [-c count] [-h hashname] [-M core] [-N system]\n" 1888 "\t\t[-u histname] [-w wait] [disks]\n", getprogname()); 1889 exit(1); 1890 } 1891