1 /* $NetBSD: vmstat.c,v 1.248 2021/11/27 22:16:42 rillig Exp $ */ 2 3 /*- 4 * Copyright (c) 1998, 2000, 2001, 2007, 2019, 2020 5 * The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation by: 9 * - Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 10 * NASA Ames Research Center. 11 * - Simon Burge and Luke Mewburn of Wasabi Systems, Inc. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 24 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 25 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 /* 36 * Copyright (c) 1980, 1986, 1991, 1993 37 * The Regents of the University of California. All rights reserved. 38 * 39 * Redistribution and use in source and binary forms, with or without 40 * modification, are permitted provided that the following conditions 41 * are met: 42 * 1. Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * 2. Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in the 46 * documentation and/or other materials provided with the distribution. 47 * 3. Neither the name of the University nor the names of its contributors 48 * may be used to endorse or promote products derived from this software 49 * without specific prior written permission. 50 * 51 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 52 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 53 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 54 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 55 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 56 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 57 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 58 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 59 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 60 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 61 * SUCH DAMAGE. 62 */ 63 64 #include <sys/cdefs.h> 65 #ifndef lint 66 __COPYRIGHT("@(#) Copyright (c) 1980, 1986, 1991, 1993\ 67 The Regents of the University of California. All rights reserved."); 68 #endif /* not lint */ 69 70 #ifndef lint 71 #if 0 72 static char sccsid[] = "@(#)vmstat.c 8.2 (Berkeley) 3/1/95"; 73 #else 74 __RCSID("$NetBSD: vmstat.c,v 1.248 2021/11/27 22:16:42 rillig Exp $"); 75 #endif 76 #endif /* not lint */ 77 78 #define __POOL_EXPOSE 79 #define __NAMECACHE_PRIVATE 80 81 #include <sys/param.h> 82 #include <sys/types.h> 83 #include <sys/mount.h> 84 #include <sys/uio.h> 85 86 #include <sys/buf.h> 87 #include <sys/evcnt.h> 88 #include <sys/ioctl.h> 89 #include <sys/malloc.h> 90 #include <sys/mallocvar.h> 91 #include <sys/namei.h> 92 #include <sys/pool.h> 93 #include <sys/proc.h> 94 #include <sys/sched.h> 95 #include <sys/socket.h> 96 #include <sys/sysctl.h> 97 #include <sys/time.h> 98 #include <sys/queue.h> 99 #include <sys/kernhist.h> 100 #include <sys/vnode.h> 101 #include <sys/vnode_impl.h> 102 103 #include <uvm/uvm_extern.h> 104 #include <uvm/uvm_stat.h> 105 106 #include <net/if.h> 107 #include <netinet/in.h> 108 #include <netinet/in_var.h> 109 110 #include <ufs/ufs/inode.h> 111 112 #include <nfs/rpcv2.h> 113 #include <nfs/nfsproto.h> 114 #include <nfs/nfsnode.h> 115 116 #include <assert.h> 117 #include <ctype.h> 118 #include <err.h> 119 #include <errno.h> 120 #include <fcntl.h> 121 #include <kvm.h> 122 #include <limits.h> 123 #include <nlist.h> 124 #undef n_hash 125 #include <paths.h> 126 #include <signal.h> 127 #include <stdio.h> 128 #include <stddef.h> 129 #include <stdlib.h> 130 #include <string.h> 131 #include <time.h> 132 #include <unistd.h> 133 #include <util.h> 134 135 #include "drvstats.h" 136 137 /* 138 * All this mess will go away once everything is converted. 139 */ 140 #ifdef __HAVE_CPU_DATA_FIRST 141 142 # include <sys/cpu_data.h> 143 struct cpu_info { 144 struct cpu_data ci_data; 145 }; 146 #else 147 # include <sys/cpu.h> 148 #endif 149 150 /* 151 * General namelist 152 */ 153 struct nlist namelist[] = 154 { 155 #define X_HZ 0 156 { .n_name = "_hz" }, 157 #define X_STATHZ 1 158 { .n_name = "_stathz" }, 159 #define X_NCHSTATS 2 160 { .n_name = "_nchstats" }, 161 #define X_ALLEVENTS 3 162 { .n_name = "_allevents" }, 163 #define X_POOLHEAD 4 164 { .n_name = "_pool_head" }, 165 #define X_UVMEXP 5 166 { .n_name = "_uvmexp" }, 167 #define X_CPU_INFOS 6 168 { .n_name = "_cpu_infos" }, 169 #define X_NL_SIZE 7 170 { .n_name = NULL }, 171 }; 172 173 /* 174 * Namelist for time data. 175 */ 176 struct nlist timenl[] = 177 { 178 #define X_TIMEBASEBIN 0 179 { .n_name = "_timebasebin" }, 180 #define X_TIME_SECOND 1 181 { .n_name = "_time_second" }, 182 #define X_TIME 2 183 { .n_name = "_time" }, 184 #define X_TIMENL_SIZE 3 185 { .n_name = NULL }, 186 }; 187 188 /* 189 * Namelist for pre-evcnt interrupt counters. 190 */ 191 struct nlist intrnl[] = 192 { 193 #define X_INTRNAMES 0 194 { .n_name = "_intrnames" }, 195 #define X_EINTRNAMES 1 196 { .n_name = "_eintrnames" }, 197 #define X_INTRCNT 2 198 { .n_name = "_intrcnt" }, 199 #define X_EINTRCNT 3 200 { .n_name = "_eintrcnt" }, 201 #define X_INTRNL_SIZE 4 202 { .n_name = NULL }, 203 }; 204 205 206 /* 207 * Namelist for hash statistics 208 */ 209 struct nlist hashnl[] = 210 { 211 #define X_BUFHASH 0 212 { .n_name = "_bufhash" }, 213 #define X_BUFHASHTBL 1 214 { .n_name = "_bufhashtbl" }, 215 #define X_UIHASH 2 216 { .n_name = "_uihash" }, 217 #define X_UIHASHTBL 3 218 { .n_name = "_uihashtbl" }, 219 #define X_IFADDRHASH 4 220 { .n_name = "_in_ifaddrhash" }, 221 #define X_IFADDRHASHTBL 5 222 { .n_name = "_in_ifaddrhashtbl" }, 223 #define X_VCACHEHASH 6 224 { .n_name = "_vcache_hashmask" }, 225 #define X_VCACHETBL 7 226 { .n_name = "_vcache_hashtab" }, 227 #define X_HASHNL_SIZE 8 /* must be last */ 228 { .n_name = NULL }, 229 }; 230 231 /* 232 * Namelist for kernel histories 233 */ 234 struct nlist histnl[] = 235 { 236 { .n_name = "_kern_histories" }, 237 #define X_KERN_HISTORIES 0 238 { .n_name = NULL }, 239 }; 240 241 242 #define KILO 1024 243 244 struct cpu_counter { 245 uint64_t nintr; 246 uint64_t nsyscall; 247 uint64_t nswtch; 248 uint64_t nfault; 249 uint64_t ntrap; 250 uint64_t nsoft; 251 } cpucounter, ocpucounter; 252 253 struct uvmexp_sysctl uvmexp, ouvmexp; 254 int ndrives; 255 256 int winlines = 20; 257 258 kvm_t *kd; 259 260 261 #define FORKSTAT 0x001 262 #define INTRSTAT 0x002 263 #define MEMSTAT 0x004 264 #define SUMSTAT 0x008 265 #define EVCNTSTAT 0x010 266 #define VMSTAT 0x020 267 #define HISTLIST 0x040 268 #define HISTDUMP 0x080 269 #define HASHSTAT 0x100 270 #define HASHLIST 0x200 271 #define VMTOTAL 0x400 272 #define POOLCACHESTAT 0x800 273 274 /* 275 * Print single word. `ovflow' is number of characters didn't fit 276 * on the last word. `fmt' is a format string to print this word. 277 * It must contain asterisk for field width. `width' is a width 278 * occupied by this word. `fixed' is a number of constant chars in 279 * `fmt'. `val' is a value to be printed using format string `fmt'. 280 */ 281 #define PRWORD(ovflw, fmt, width, fixed, val) do { \ 282 (ovflw) += printf((fmt), \ 283 (width) - (fixed) - (ovflw) > 0 ? \ 284 (width) - (fixed) - (ovflw) : 0, \ 285 (val)) - (width); \ 286 if ((ovflw) < 0) \ 287 (ovflw) = 0; \ 288 } while (0) 289 290 void cpustats(int *); 291 void cpucounters(struct cpu_counter *); 292 void deref_kptr(const void *, void *, size_t, const char *); 293 void drvstats(int *); 294 void doevcnt(int verbose, int type); 295 void dohashstat(int, int, const char *); 296 void dohashstat_sysctl(int, int, const char *); 297 void dointr(int verbose); 298 void dopool(int, int); 299 void dopoolcache(int); 300 void dosum(void); 301 void dovmstat(struct timespec *, int); 302 void print_total_hdr(void); 303 void dovmtotal(struct timespec *, int); 304 void kread(struct nlist *, int, void *, size_t); 305 int kreadc(struct nlist *, int, void *, size_t); 306 void needhdr(int); 307 void getnlist(int); 308 long getuptime(void); 309 void printhdr(void); 310 long pct(u_long, u_long); 311 __dead static void usage(void); 312 void doforkst(void); 313 314 void hist_traverse(int, const char *); 315 void hist_dodump(struct kern_history *); 316 void hist_traverse_sysctl(int, const char *); 317 void hist_dodump_sysctl(int[], unsigned int); 318 319 char **choosedrives(char **); 320 321 /* Namelist and memory file names. */ 322 char *nlistf, *memf; 323 324 /* allow old usage [vmstat 1] */ 325 #define BACKWARD_COMPATIBILITY 326 327 static const int clockrate_mib[] = { CTL_KERN, KERN_CLOCKRATE }; 328 static const int vmmeter_mib[] = { CTL_VM, VM_METER }; 329 static const int uvmexp2_mib[] = { CTL_VM, VM_UVMEXP2 }; 330 static const int boottime_mib[] = { CTL_KERN, KERN_BOOTTIME }; 331 332 int 333 main(int argc, char *argv[]) 334 { 335 int c, todo, verbose, wide; 336 struct timespec interval; 337 int reps; 338 const char *histname, *hashname; 339 char errbuf[_POSIX2_LINE_MAX]; 340 341 histname = hashname = NULL; 342 memf = nlistf = NULL; 343 reps = todo = verbose = wide = 0; 344 interval.tv_sec = 0; 345 interval.tv_nsec = 0; 346 while ((c = getopt(argc, argv, "Cc:efh:HilLM:mN:stu:UvWw:")) != -1) { 347 switch (c) { 348 case 'c': 349 reps = atoi(optarg); 350 break; 351 case 'C': 352 todo |= POOLCACHESTAT; 353 break; 354 case 'e': 355 todo |= EVCNTSTAT; 356 break; 357 case 'f': 358 todo |= FORKSTAT; 359 break; 360 case 'h': 361 hashname = optarg; 362 /* FALLTHROUGH */ 363 case 'H': 364 todo |= HASHSTAT; 365 break; 366 case 'i': 367 todo |= INTRSTAT; 368 break; 369 case 'l': 370 todo |= HISTLIST; 371 break; 372 case 'L': 373 todo |= HASHLIST; 374 break; 375 case 'M': 376 memf = optarg; 377 break; 378 case 'm': 379 todo |= MEMSTAT; 380 break; 381 case 'N': 382 nlistf = optarg; 383 break; 384 case 's': 385 todo |= SUMSTAT; 386 break; 387 case 't': 388 todo |= VMTOTAL; 389 break; 390 case 'u': 391 histname = optarg; 392 /* FALLTHROUGH */ 393 case 'U': 394 todo |= HISTDUMP; 395 break; 396 case 'v': 397 verbose++; 398 break; 399 case 'W': 400 wide++; 401 break; 402 case 'w': 403 interval.tv_sec = atol(optarg); 404 break; 405 case '?': 406 default: 407 usage(); 408 } 409 } 410 argc -= optind; 411 argv += optind; 412 413 if (todo == 0) 414 todo = VMSTAT; 415 416 if (memf == NULL) { 417 kd = kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, errbuf); 418 } else { 419 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf); 420 getnlist(todo); 421 } 422 423 if (kd == NULL) 424 errx(EXIT_FAILURE, "%s", errbuf); 425 426 if (todo & VMSTAT) { 427 struct winsize winsize; 428 429 (void)drvinit(0);/* Initialize disk stats, no disks selected. */ 430 431 argv = choosedrives(argv); /* Select disks. */ 432 winsize.ws_row = 0; 433 (void)ioctl(STDOUT_FILENO, TIOCGWINSZ, &winsize); 434 if (winsize.ws_row > 0) 435 winlines = winsize.ws_row; 436 437 } 438 439 #ifdef BACKWARD_COMPATIBILITY 440 if (*argv) { 441 interval.tv_sec = atol(*argv); 442 if (*++argv) 443 reps = atoi(*argv); 444 } 445 #endif 446 447 if (interval.tv_sec) { 448 if (!reps) 449 reps = -1; 450 } else if (reps) 451 interval.tv_sec = 1; 452 453 /* 454 * Statistics dumping is incompatible with the default 455 * VMSTAT/dovmstat() output. So perform the interval/reps handling 456 * for it here. 457 */ 458 if ((todo & (VMSTAT|VMTOTAL)) == 0) { 459 for (;;) { 460 if (todo & (HISTLIST|HISTDUMP)) { 461 if ((todo & (HISTLIST|HISTDUMP)) == 462 (HISTLIST|HISTDUMP)) 463 errx(1, "you may list or dump," 464 " but not both!"); 465 if (memf != NULL) 466 hist_traverse(todo, histname); 467 else 468 hist_traverse_sysctl(todo, histname); 469 (void)putchar('\n'); 470 } 471 if (todo & FORKSTAT) { 472 doforkst(); 473 (void)putchar('\n'); 474 } 475 if (todo & MEMSTAT) { 476 dopool(verbose, wide); 477 (void)putchar('\n'); 478 } 479 if (todo & POOLCACHESTAT) { 480 dopoolcache(verbose); 481 (void)putchar('\n'); 482 } 483 if (todo & SUMSTAT) { 484 dosum(); 485 (void)putchar('\n'); 486 } 487 if (todo & INTRSTAT) { 488 dointr(verbose); 489 (void)putchar('\n'); 490 } 491 if (todo & EVCNTSTAT) { 492 doevcnt(verbose, EVCNT_TYPE_ANY); 493 (void)putchar('\n'); 494 } 495 if (todo & (HASHLIST|HASHSTAT)) { 496 if ((todo & (HASHLIST|HASHSTAT)) == 497 (HASHLIST|HASHSTAT)) 498 errx(1, "you may list or display," 499 " but not both!"); 500 dohashstat(verbose, todo, hashname); 501 (void)putchar('\n'); 502 } 503 504 fflush(stdout); 505 if (reps >= 0 && --reps <=0) 506 break; 507 (void)nanosleep(&interval, NULL); 508 } 509 } else { 510 if ((todo & (VMSTAT|VMTOTAL)) == (VMSTAT|VMTOTAL)) { 511 errx(1, "you may not both do vmstat and vmtotal"); 512 } 513 if (todo & VMSTAT) 514 dovmstat(&interval, reps); 515 if (todo & VMTOTAL) 516 dovmtotal(&interval, reps); 517 } 518 return 0; 519 } 520 521 void 522 getnlist(int todo) 523 { 524 static int done = 0; 525 int c; 526 size_t i; 527 528 if ((c = kvm_nlist(kd, namelist)) != 0) { 529 int doexit = 0; 530 if (c == -1) 531 errx(1, "kvm_nlist: %s %s", 532 "namelist", kvm_geterr(kd)); 533 for (i = 0; i < __arraycount(namelist)-1; i++) 534 if (namelist[i].n_type == 0) { 535 if (doexit++ == 0) 536 (void)fprintf(stderr, 537 "%s: undefined symbols:", 538 getprogname()); 539 (void)fprintf(stderr, " %s", 540 namelist[i].n_name); 541 } 542 if (doexit) { 543 (void)fputc('\n', stderr); 544 exit(1); 545 } 546 } 547 548 if ((todo & (VMSTAT|INTRSTAT)) && !(done & (VMSTAT))) { 549 done |= VMSTAT; 550 if ((c = kvm_nlist(kd, timenl)) == -1 || c == X_TIMENL_SIZE) 551 errx(1, "kvm_nlist: %s %s", "timenl", kvm_geterr(kd)); 552 } 553 if ((todo & (SUMSTAT|INTRSTAT)) && !(done & (SUMSTAT|INTRSTAT))) { 554 done |= SUMSTAT|INTRSTAT; 555 (void) kvm_nlist(kd, intrnl); 556 } 557 if ((todo & (HASHLIST|HASHSTAT)) && !(done & (HASHLIST|HASHSTAT))) { 558 done |= HASHLIST|HASHSTAT; 559 if ((c = kvm_nlist(kd, hashnl)) == -1 || c == X_HASHNL_SIZE) 560 errx(1, "kvm_nlist: %s %s", "hashnl", kvm_geterr(kd)); 561 } 562 if ((todo & (HISTLIST|HISTDUMP)) && !(done & (HISTLIST|HISTDUMP))) { 563 done |= HISTLIST|HISTDUMP; 564 if (kvm_nlist(kd, histnl) == -1) 565 errx(1, "kvm_nlist: %s %s", "histnl", kvm_geterr(kd)); 566 } 567 } 568 569 char ** 570 choosedrives(char **argv) 571 { 572 size_t i; 573 574 /* 575 * Choose drives to be displayed. Priority goes to (in order) drives 576 * supplied as arguments, default drives. If everything isn't filled 577 * in and there are drives not taken care of, display the first few 578 * that fit. 579 */ 580 #define BACKWARD_COMPATIBILITY 581 for (ndrives = 0; *argv; ++argv) { 582 #ifdef BACKWARD_COMPATIBILITY 583 if (isdigit((unsigned char)**argv)) 584 break; 585 #endif 586 for (i = 0; i < ndrive; i++) { 587 if (strcmp(dr_name[i], *argv)) 588 continue; 589 drv_select[i] = 1; 590 ++ndrives; 591 break; 592 } 593 } 594 for (i = 0; i < ndrive && ndrives < 2; i++) { 595 if (drv_select[i]) 596 continue; 597 drv_select[i] = 1; 598 ++ndrives; 599 } 600 601 return (argv); 602 } 603 604 long 605 getuptime(void) 606 { 607 static struct timespec boottime; 608 struct timespec now; 609 time_t uptime, nowsec; 610 611 if (memf == NULL) { 612 if (boottime.tv_sec == 0) { 613 size_t buflen = sizeof(boottime); 614 if (sysctl(boottime_mib, __arraycount(boottime_mib), 615 &boottime, &buflen, NULL, 0) == -1) 616 warn("Can't get boottime"); 617 } 618 clock_gettime(CLOCK_REALTIME, &now); 619 } else { 620 if (boottime.tv_sec == 0) { 621 struct bintime bt; 622 623 kread(timenl, X_TIMEBASEBIN, &bt, sizeof(bt)); 624 bintime2timespec(&bt, &boottime); 625 } 626 if (kreadc(timenl, X_TIME_SECOND, &nowsec, sizeof(nowsec))) { 627 /* 628 * XXX this assignment dance can be removed once 629 * timeval tv_sec is SUS mandated time_t 630 */ 631 now.tv_sec = nowsec; 632 now.tv_nsec = 0; 633 } else { 634 kread(timenl, X_TIME, &now, sizeof(now)); 635 } 636 } 637 uptime = now.tv_sec - boottime.tv_sec; 638 if (uptime <= 0 || uptime > 60*60*24*365*10) 639 errx(1, "time makes no sense; namelist must be wrong."); 640 return (uptime); 641 } 642 643 int hz, hdrcnt; 644 645 void 646 print_total_hdr(void) 647 { 648 649 (void)printf("procs memory\n"); 650 (void)printf("ru dw pw sl"); 651 (void)printf(" total-v active-v active-r"); 652 (void)printf(" vm-sh avm-sh rm-sh arm-sh free\n"); 653 hdrcnt = winlines - 2; 654 } 655 656 void 657 dovmtotal(struct timespec *interval, int reps) 658 { 659 struct vmtotal total; 660 size_t size; 661 662 (void)signal(SIGCONT, needhdr); 663 664 for (hdrcnt = 1;;) { 665 if (!--hdrcnt) 666 print_total_hdr(); 667 if (memf != NULL) { 668 warnx("Unable to get vmtotals from crash dump."); 669 (void)memset(&total, 0, sizeof(total)); 670 } else { 671 size = sizeof(total); 672 if (sysctl(vmmeter_mib, __arraycount(vmmeter_mib), 673 &total, &size, NULL, 0) == -1) { 674 warn("Can't get vmtotals"); 675 (void)memset(&total, 0, sizeof(total)); 676 } 677 } 678 (void)printf("%2d ", total.t_rq); 679 (void)printf("%2d ", total.t_dw); 680 (void)printf("%2d ", total.t_pw); 681 (void)printf("%2d ", total.t_sl); 682 683 (void)printf("%9d ", total.t_vm); 684 (void)printf("%9d ", total.t_avm); 685 (void)printf("%9d ", total.t_arm); 686 (void)printf("%5d ", total.t_vmshr); 687 (void)printf("%6d ", total.t_avmshr); 688 (void)printf("%5d ", total.t_rmshr); 689 (void)printf("%6d ", total.t_armshr); 690 (void)printf("%5d", total.t_free); 691 692 (void)putchar('\n'); 693 694 (void)fflush(stdout); 695 if (reps >= 0 && --reps <= 0) 696 break; 697 698 (void)nanosleep(interval, NULL); 699 } 700 } 701 702 void 703 dovmstat(struct timespec *interval, int reps) 704 { 705 struct vmtotal total; 706 time_t uptime, halfuptime; 707 size_t size; 708 int pagesize = getpagesize(); 709 int ovflw; 710 711 uptime = getuptime(); 712 halfuptime = uptime / 2; 713 (void)signal(SIGCONT, needhdr); 714 715 if (memf != NULL) { 716 if (namelist[X_STATHZ].n_type != 0 && namelist[X_STATHZ].n_value != 0) 717 kread(namelist, X_STATHZ, &hz, sizeof(hz)); 718 if (!hz) 719 kread(namelist, X_HZ, &hz, sizeof(hz)); 720 } else { 721 struct clockinfo clockinfo; 722 size = sizeof(clockinfo); 723 if (sysctl(clockrate_mib, 2, &clockinfo, &size, NULL, 0) == -1) 724 err(1, "sysctl kern.clockrate failed"); 725 hz = clockinfo.stathz; 726 if (!hz) 727 hz = clockinfo.hz; 728 } 729 730 for (hdrcnt = 1;;) { 731 if (!--hdrcnt) 732 printhdr(); 733 /* Read new disk statistics */ 734 cpureadstats(); 735 drvreadstats(); 736 tkreadstats(); 737 if (memf != NULL) { 738 struct uvmexp uvmexp_kernel; 739 /* 740 * XXX Can't do this if we're reading a crash 741 * XXX dump because they're lazily-calculated. 742 */ 743 warnx("Unable to get vmtotals from crash dump."); 744 (void)memset(&total, 0, sizeof(total)); 745 kread(namelist, X_UVMEXP, &uvmexp_kernel, sizeof(uvmexp_kernel)); 746 #define COPY(field) uvmexp.field = uvmexp_kernel.field 747 COPY(pdreact); 748 COPY(pageins); 749 COPY(pgswapout); 750 COPY(pdfreed); 751 COPY(pdscans); 752 #undef COPY 753 } else { 754 size = sizeof(total); 755 if (sysctl(vmmeter_mib, __arraycount(vmmeter_mib), 756 &total, &size, NULL, 0) == -1) { 757 warn("Can't get vmtotals"); 758 (void)memset(&total, 0, sizeof(total)); 759 } 760 size = sizeof(uvmexp); 761 if (sysctl(uvmexp2_mib, __arraycount(uvmexp2_mib), &uvmexp, 762 &size, NULL, 0) == -1) 763 warn("sysctl vm.uvmexp2 failed"); 764 } 765 cpucounters(&cpucounter); 766 ovflw = 0; 767 PRWORD(ovflw, " %*d", 2, 1, total.t_rq - 1); 768 PRWORD(ovflw, " %*d", 2, 1, total.t_dw + total.t_pw); 769 #define pgtok(a) (long)((a) * ((uint32_t)pagesize >> 10)) 770 #define rate(x) (u_long)(((x) + halfuptime) / uptime) /* round */ 771 PRWORD(ovflw, " %*ld", 9, 1, pgtok(total.t_avm)); 772 PRWORD(ovflw, " %*ld", 7, 1, pgtok(total.t_free)); 773 PRWORD(ovflw, " %*ld", 5, 1, 774 rate(cpucounter.nfault - ocpucounter.nfault)); 775 PRWORD(ovflw, " %*ld", 4, 1, 776 rate(uvmexp.pdreact - ouvmexp.pdreact)); 777 PRWORD(ovflw, " %*ld", 4, 1, 778 rate(uvmexp.pageins - ouvmexp.pageins)); 779 PRWORD(ovflw, " %*ld", 5, 1, 780 rate(uvmexp.pgswapout - ouvmexp.pgswapout)); 781 PRWORD(ovflw, " %*ld", 5, 1, 782 rate(uvmexp.pdfreed - ouvmexp.pdfreed)); 783 PRWORD(ovflw, " %*ld", 6, 2, 784 rate(uvmexp.pdscans - ouvmexp.pdscans)); 785 drvstats(&ovflw); 786 PRWORD(ovflw, " %*ld", 5, 1, 787 rate(cpucounter.nintr - ocpucounter.nintr)); 788 PRWORD(ovflw, " %*ld", 5, 1, 789 rate(cpucounter.nsyscall - ocpucounter.nsyscall)); 790 PRWORD(ovflw, " %*ld", 4, 1, 791 rate(cpucounter.nswtch - ocpucounter.nswtch)); 792 cpustats(&ovflw); 793 (void)putchar('\n'); 794 (void)fflush(stdout); 795 if (reps >= 0 && --reps <= 0) 796 break; 797 ouvmexp = uvmexp; 798 ocpucounter = cpucounter; 799 uptime = interval->tv_sec; 800 /* 801 * We round upward to avoid losing low-frequency events 802 * (i.e., >= 1 per interval but < 1 per second). 803 */ 804 halfuptime = uptime == 1 ? 0 : (uptime + 1) / 2; 805 (void)nanosleep(interval, NULL); 806 } 807 } 808 809 void 810 printhdr(void) 811 { 812 size_t i; 813 814 (void)printf(" procs memory page%*s", 23, ""); 815 if (ndrives > 0) 816 (void)printf("%s %*sfaults cpu\n", 817 ((ndrives > 1) ? "disks" : "disk"), 818 ((ndrives > 1) ? ndrives * 3 - 4 : 0), ""); 819 else 820 (void)printf("%*s faults cpu\n", 821 ndrives * 3, ""); 822 823 (void)printf(" r b avm fre flt re pi po fr sr "); 824 for (i = 0; i < ndrive; i++) 825 if (drv_select[i]) 826 (void)printf("%c%c ", dr_name[i][0], 827 dr_name[i][strlen(dr_name[i]) - 1]); 828 (void)printf(" in sy cs us sy id\n"); 829 hdrcnt = winlines - 2; 830 } 831 832 /* 833 * Force a header to be prepended to the next output. 834 */ 835 void 836 /*ARGSUSED*/ 837 needhdr(int dummy) 838 { 839 840 hdrcnt = 1; 841 } 842 843 long 844 pct(u_long top, u_long bot) 845 { 846 long ans; 847 848 if (bot == 0) 849 return (0); 850 ans = (long)((quad_t)top * 100 / bot); 851 return (ans); 852 } 853 854 #define PCT(top, bot) (int)pct((u_long)(top), (u_long)(bot)) 855 856 void 857 dosum(void) 858 { 859 struct nchstats nch_stats; 860 uint64_t nchtotal; 861 size_t ssize; 862 int active_kernel; 863 struct cpu_counter cc; 864 865 /* 866 * The "active" and "inactive" variables 867 * are now estimated by the kernel and sadly 868 * can not easily be dug out of a crash dump. 869 */ 870 ssize = sizeof(uvmexp); 871 memset(&uvmexp, 0, ssize); 872 active_kernel = (memf == NULL); 873 if (active_kernel) { 874 /* only on active kernel */ 875 if (sysctl(uvmexp2_mib, __arraycount(uvmexp2_mib), &uvmexp, 876 &ssize, NULL, 0) == -1) 877 warn("sysctl vm.uvmexp2 failed"); 878 } else { 879 struct uvmexp uvmexp_kernel; 880 struct pool pool, *pp = &pool; 881 struct pool_allocator pa; 882 TAILQ_HEAD(,pool) pool_head; 883 void *addr; 884 uint64_t bytes; 885 886 kread(namelist, X_UVMEXP, &uvmexp_kernel, sizeof(uvmexp_kernel)); 887 #define COPY(field) uvmexp.field = uvmexp_kernel.field 888 COPY(pagesize); 889 COPY(ncolors); 890 COPY(npages); 891 COPY(free); 892 COPY(paging); 893 COPY(wired); 894 COPY(reserve_pagedaemon); 895 COPY(reserve_kernel); 896 COPY(anonpages); 897 COPY(filepages); 898 COPY(execpages); 899 COPY(freemin); 900 COPY(freetarg); 901 COPY(wiredmax); 902 COPY(nswapdev); 903 COPY(swpages); 904 COPY(swpginuse); 905 COPY(nswget); 906 COPY(pageins); 907 COPY(pdpageouts); 908 COPY(pgswapin); 909 COPY(pgswapout); 910 COPY(forks); 911 COPY(forks_ppwait); 912 COPY(forks_sharevm); 913 COPY(colorhit); 914 COPY(colormiss); 915 COPY(cpuhit); 916 COPY(cpumiss); 917 COPY(fltnoram); 918 COPY(fltnoanon); 919 COPY(fltpgwait); 920 COPY(fltpgrele); 921 COPY(fltrelck); 922 COPY(fltrelckok); 923 COPY(fltanget); 924 COPY(fltanretry); 925 COPY(fltamcopy); 926 COPY(fltamcopy); 927 COPY(fltnomap); 928 COPY(fltlget); 929 COPY(fltget); 930 COPY(flt_anon); 931 COPY(flt_acow); 932 COPY(flt_obj); 933 COPY(flt_prcopy); 934 COPY(flt_przero); 935 COPY(pdwoke); 936 COPY(pdrevs); 937 COPY(pdfreed); 938 COPY(pdscans); 939 COPY(pdanscan); 940 COPY(pdobscan); 941 COPY(pdreact); 942 COPY(pdbusy); 943 COPY(pdpending); 944 COPY(pddeact); 945 COPY(bootpages); 946 #undef COPY 947 kread(namelist, X_POOLHEAD, &pool_head, sizeof(pool_head)); 948 addr = TAILQ_FIRST(&pool_head); 949 uvmexp.poolpages = 0; 950 for (; addr != NULL; addr = TAILQ_NEXT(pp, pr_poollist)) { 951 deref_kptr(addr, pp, sizeof(*pp), "pool chain trashed"); 952 deref_kptr(pp->pr_alloc, &pa, sizeof(pa), 953 "pool allocator trashed"); 954 bytes = pp->pr_npages * pa.pa_pagesz; 955 if ((pp->pr_roflags & PR_RECURSIVE) != 0) 956 bytes -= (pp->pr_nout * pp->pr_size); 957 uvmexp.poolpages += bytes / uvmexp.pagesize; 958 } 959 } 960 961 962 (void)printf("%9" PRIu64 " bytes per page\n", uvmexp.pagesize); 963 964 (void)printf("%9" PRIu64 " page color%s\n", 965 uvmexp.ncolors, uvmexp.ncolors == 1 ? "" : "s"); 966 967 (void)printf("%9" PRIu64 " pages managed\n", uvmexp.npages); 968 (void)printf("%9" PRIu64 " pages free\n", uvmexp.free); 969 if (active_kernel) { 970 (void)printf("%9" PRIu64 " pages active\n", uvmexp.active); 971 (void)printf("%9" PRIu64 " pages inactive\n", uvmexp.inactive); 972 } 973 (void)printf("%9" PRIu64 " pages paging\n", uvmexp.paging); 974 (void)printf("%9" PRIu64 " pages wired\n", uvmexp.wired); 975 (void)printf("%9" PRIu64 " reserve pagedaemon pages\n", 976 uvmexp.reserve_pagedaemon); 977 (void)printf("%9" PRIu64 " reserve kernel pages\n", uvmexp.reserve_kernel); 978 (void)printf("%9" PRIu64 " boot kernel pages\n", uvmexp.bootpages); 979 (void)printf("%9" PRIu64 " kernel pool pages\n", uvmexp.poolpages); 980 (void)printf("%9" PRIu64 " anonymous pages\n", uvmexp.anonpages); 981 (void)printf("%9" PRIu64 " cached file pages\n", uvmexp.filepages); 982 (void)printf("%9" PRIu64 " cached executable pages\n", uvmexp.execpages); 983 984 (void)printf("%9" PRIu64 " minimum free pages\n", uvmexp.freemin); 985 (void)printf("%9" PRIu64 " target free pages\n", uvmexp.freetarg); 986 (void)printf("%9" PRIu64 " maximum wired pages\n", uvmexp.wiredmax); 987 988 (void)printf("%9" PRIu64 " swap devices\n", uvmexp.nswapdev); 989 (void)printf("%9" PRIu64 " swap pages\n", uvmexp.swpages); 990 (void)printf("%9" PRIu64 " swap pages in use\n", uvmexp.swpginuse); 991 (void)printf("%9" PRIu64 " swap allocations\n", uvmexp.nswget); 992 993 cpucounters(&cc); 994 995 (void)printf("%9" PRIu64 " total faults taken\n", cc.nfault); 996 (void)printf("%9" PRIu64 " traps\n", cc.ntrap); 997 (void)printf("%9" PRIu64 " device interrupts\n", cc.nintr); 998 (void)printf("%9" PRIu64 " CPU context switches\n", cc.nswtch); 999 (void)printf("%9" PRIu64 " software interrupts\n", cc.nsoft); 1000 (void)printf("%9" PRIu64 " system calls\n", cc.nsyscall); 1001 (void)printf("%9" PRIu64 " pagein requests\n", uvmexp.pageins); 1002 (void)printf("%9" PRIu64 " pageout requests\n", uvmexp.pdpageouts); 1003 (void)printf("%9" PRIu64 " pages swapped in\n", uvmexp.pgswapin); 1004 (void)printf("%9" PRIu64 " pages swapped out\n", uvmexp.pgswapout); 1005 (void)printf("%9" PRIu64 " forks total\n", uvmexp.forks); 1006 (void)printf("%9" PRIu64 " forks blocked parent\n", uvmexp.forks_ppwait); 1007 (void)printf("%9" PRIu64 " forks shared address space with parent\n", 1008 uvmexp.forks_sharevm); 1009 (void)printf("%9" PRIu64 " pagealloc desired color avail\n", 1010 uvmexp.colorhit); 1011 (void)printf("%9" PRIu64 " pagealloc desired color not avail\n", 1012 uvmexp.colormiss); 1013 (void)printf("%9" PRIu64 " pagealloc local cpu avail\n", 1014 uvmexp.cpuhit); 1015 (void)printf("%9" PRIu64 " pagealloc local cpu not avail\n", 1016 uvmexp.cpumiss); 1017 1018 (void)printf("%9" PRIu64 " faults with no memory\n", uvmexp.fltnoram); 1019 (void)printf("%9" PRIu64 " faults with no anons\n", uvmexp.fltnoanon); 1020 (void)printf("%9" PRIu64 " faults had to wait on pages\n", uvmexp.fltpgwait); 1021 (void)printf("%9" PRIu64 " faults found released page\n", uvmexp.fltpgrele); 1022 (void)printf("%9" PRIu64 " faults relock (%" PRIu64 " ok)\n", uvmexp.fltrelck, 1023 uvmexp.fltrelckok); 1024 (void)printf("%9" PRIu64 " anon page faults\n", uvmexp.fltanget); 1025 (void)printf("%9" PRIu64 " anon retry faults\n", uvmexp.fltanretry); 1026 (void)printf("%9" PRIu64 " amap copy faults\n", uvmexp.fltamcopy); 1027 (void)printf("%9" PRIu64 " neighbour anon page faults\n", uvmexp.fltnamap); 1028 (void)printf("%9" PRIu64 " neighbour object page faults\n", uvmexp.fltnomap); 1029 (void)printf("%9" PRIu64 " locked pager get faults\n", uvmexp.fltlget); 1030 (void)printf("%9" PRIu64 " unlocked pager get faults\n", uvmexp.fltget); 1031 (void)printf("%9" PRIu64 " anon faults\n", uvmexp.flt_anon); 1032 (void)printf("%9" PRIu64 " anon copy on write faults\n", uvmexp.flt_acow); 1033 (void)printf("%9" PRIu64 " object faults\n", uvmexp.flt_obj); 1034 (void)printf("%9" PRIu64 " promote copy faults\n", uvmexp.flt_prcopy); 1035 (void)printf("%9" PRIu64 " promote zero fill faults\n", uvmexp.flt_przero); 1036 (void)printf("%9" PRIu64 " faults upgraded lock\n", 1037 uvmexp.fltup); 1038 (void)printf("%9" PRIu64 " faults couldn't upgrade lock\n", 1039 uvmexp.fltnoup); 1040 1041 (void)printf("%9" PRIu64 " times daemon wokeup\n",uvmexp.pdwoke); 1042 (void)printf("%9" PRIu64 " revolutions of the clock hand\n", uvmexp.pdrevs); 1043 (void)printf("%9" PRIu64 " pages freed by daemon\n", uvmexp.pdfreed); 1044 (void)printf("%9" PRIu64 " pages scanned by daemon\n", uvmexp.pdscans); 1045 (void)printf("%9" PRIu64 " anonymous pages scanned by daemon\n", 1046 uvmexp.pdanscan); 1047 (void)printf("%9" PRIu64 " object pages scanned by daemon\n", uvmexp.pdobscan); 1048 (void)printf("%9" PRIu64 " pages reactivated\n", uvmexp.pdreact); 1049 (void)printf("%9" PRIu64 " pages found busy by daemon\n", uvmexp.pdbusy); 1050 (void)printf("%9" PRIu64 " total pending pageouts\n", uvmexp.pdpending); 1051 (void)printf("%9" PRIu64 " pages deactivated\n", uvmexp.pddeact); 1052 (void)printf("%9" PRIu64 " per-cpu stats synced\n", uvmexp.countsyncall); 1053 (void)printf("%9" PRIu64 " anon pages possibly dirty\n", uvmexp.anonunknown); 1054 (void)printf("%9" PRIu64 " anon pages dirty\n", uvmexp.anondirty); 1055 (void)printf("%9" PRIu64 " anon pages clean\n", uvmexp.anonclean); 1056 (void)printf("%9" PRIu64 " file pages possibly dirty\n", uvmexp.fileunknown); 1057 (void)printf("%9" PRIu64 " file pages dirty\n", uvmexp.filedirty); 1058 (void)printf("%9" PRIu64 " file pages clean\n", uvmexp.fileclean); 1059 1060 if (active_kernel) { 1061 ssize = sizeof(nch_stats); 1062 if (sysctlbyname("vfs.namecache_stats", &nch_stats, &ssize, 1063 NULL, 0)) { 1064 warn("vfs.namecache_stats failed"); 1065 memset(&nch_stats, 0, sizeof(nch_stats)); 1066 } 1067 } else { 1068 kread(namelist, X_NCHSTATS, &nch_stats, sizeof(nch_stats)); 1069 } 1070 1071 nchtotal = nch_stats.ncs_goodhits + nch_stats.ncs_neghits + 1072 nch_stats.ncs_badhits + nch_stats.ncs_falsehits + 1073 nch_stats.ncs_miss + nch_stats.ncs_long; 1074 (void)printf("%9" PRIu64 " total name lookups\n", nchtotal); 1075 (void)printf("%9" PRIu64 " good hits\n", nch_stats.ncs_goodhits); 1076 (void)printf("%9" PRIu64 " negative hits\n", nch_stats.ncs_neghits); 1077 (void)printf("%9" PRIu64 " bad hits\n", nch_stats.ncs_badhits); 1078 (void)printf("%9" PRIu64 " false hits\n", nch_stats.ncs_falsehits); 1079 (void)printf("%9" PRIu64 " miss\n", nch_stats.ncs_miss); 1080 (void)printf("%9" PRIu64 " too long\n", nch_stats.ncs_long); 1081 (void)printf("%9" PRIu64 " pass2 hits\n", nch_stats.ncs_pass2); 1082 (void)printf("%9" PRIu64 " 2passes\n", nch_stats.ncs_2passes); 1083 (void)printf("%9" PRIu64 " reverse hits\n", nch_stats.ncs_revhits); 1084 (void)printf("%9" PRIu64 " reverse miss\n", nch_stats.ncs_revmiss); 1085 (void)printf("%9" PRIu64 " access denied\n", nch_stats.ncs_denied); 1086 (void)printf( 1087 "%9s cache hits (%d%% pos + %d%% neg) system %d%% per-process\n", 1088 "", PCT(nch_stats.ncs_goodhits, nchtotal), 1089 PCT(nch_stats.ncs_neghits, nchtotal), 1090 PCT(nch_stats.ncs_pass2, nchtotal)); 1091 (void)printf("%9s deletions %d%%, falsehits %d%%, toolong %d%%\n", "", 1092 PCT(nch_stats.ncs_badhits, nchtotal), 1093 PCT(nch_stats.ncs_falsehits, nchtotal), 1094 PCT(nch_stats.ncs_long, nchtotal)); 1095 } 1096 1097 void 1098 doforkst(void) 1099 { 1100 if (memf != NULL) { 1101 struct uvmexp uvmexp_kernel; 1102 kread(namelist, X_UVMEXP, &uvmexp_kernel, sizeof(uvmexp_kernel)); 1103 #define COPY(field) uvmexp.field = uvmexp_kernel.field 1104 COPY(forks); 1105 COPY(forks_ppwait); 1106 COPY(forks_sharevm); 1107 #undef COPY 1108 } else { 1109 size_t size = sizeof(uvmexp); 1110 if (sysctl(uvmexp2_mib, __arraycount(uvmexp2_mib), &uvmexp, 1111 &size, NULL, 0) == -1) 1112 warn("sysctl vm.uvmexp2 failed"); 1113 } 1114 1115 (void)printf("%" PRIu64 " forks total\n", uvmexp.forks); 1116 (void)printf("%" PRIu64 " forks blocked parent\n", uvmexp.forks_ppwait); 1117 (void)printf("%" PRIu64 " forks shared address space with parent\n", 1118 uvmexp.forks_sharevm); 1119 } 1120 1121 void 1122 drvstats(int *ovflwp) 1123 { 1124 size_t dn; 1125 double dtime; 1126 int ovflw = *ovflwp; 1127 1128 /* Calculate disk stat deltas. */ 1129 cpuswap(); 1130 drvswap(); 1131 tkswap(); 1132 1133 for (dn = 0; dn < ndrive; ++dn) { 1134 /* elapsed time for disk stats */ 1135 dtime = cur.cp_etime; 1136 if (cur.timestamp[dn].tv_sec || cur.timestamp[dn].tv_usec) { 1137 dtime = (double)cur.timestamp[dn].tv_sec + 1138 ((double)cur.timestamp[dn].tv_usec / (double)1000000); 1139 } 1140 1141 if (!drv_select[dn]) 1142 continue; 1143 PRWORD(ovflw, " %*.0f", 3, 1, 1144 (cur.rxfer[dn] + cur.wxfer[dn]) / dtime); 1145 } 1146 *ovflwp = ovflw; 1147 } 1148 1149 void 1150 cpucounters(struct cpu_counter *cc) 1151 { 1152 static struct cpu_info **cpu_infos; 1153 static int initialised; 1154 struct cpu_info **slot; 1155 1156 if (memf == NULL) { 1157 cc->nintr = uvmexp.intrs; 1158 cc->nsyscall = uvmexp.syscalls; 1159 cc->nswtch = uvmexp.swtch; 1160 cc->nfault = uvmexp.faults; 1161 cc->ntrap = uvmexp.traps; 1162 cc->nsoft = uvmexp.softs; 1163 return; 1164 } 1165 1166 if (!initialised) { 1167 kread(namelist, X_CPU_INFOS, &cpu_infos, sizeof(cpu_infos)); 1168 initialised = 1; 1169 } 1170 1171 slot = cpu_infos; 1172 1173 memset(cc, 0, sizeof(*cc)); 1174 1175 for (;;) { 1176 struct cpu_info tci, *ci = NULL; 1177 1178 deref_kptr(slot++, &ci, sizeof(ci), "CPU array trashed"); 1179 if (!ci) { 1180 break; 1181 } 1182 1183 if ((size_t)kvm_read(kd, (u_long)ci, &tci, sizeof(tci)) 1184 != sizeof(tci)) { 1185 warnx("Can't read cpu info from %p (%s)", 1186 ci, kvm_geterr(kd)); 1187 memset(cc, 0, sizeof(*cc)); 1188 return; 1189 } 1190 cc->nintr += tci.ci_data.cpu_nintr; 1191 cc->nsyscall += tci.ci_data.cpu_nsyscall; 1192 cc->nswtch = tci.ci_data.cpu_nswtch; 1193 cc->nfault = tci.ci_data.cpu_nfault; 1194 cc->ntrap = tci.ci_data.cpu_ntrap; 1195 cc->nsoft = tci.ci_data.cpu_nsoft; 1196 } 1197 } 1198 1199 void 1200 cpustats(int *ovflwp) 1201 { 1202 int state; 1203 double pcnt, total; 1204 double stat_us, stat_sy, stat_id; 1205 int ovflw = *ovflwp; 1206 1207 total = 0; 1208 for (state = 0; state < CPUSTATES; ++state) 1209 total += cur.cp_time[state]; 1210 if (total) 1211 pcnt = 100 / total; 1212 else 1213 pcnt = 0; 1214 stat_us = (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * pcnt; 1215 stat_sy = (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * pcnt; 1216 stat_id = cur.cp_time[CP_IDLE] * pcnt; 1217 PRWORD(ovflw, " %*.0f", ((stat_sy >= 100) ? 2 : 3), 1, stat_us); 1218 PRWORD(ovflw, " %*.0f", ((stat_us >= 100 || stat_id >= 100) ? 2 : 3), 1, 1219 stat_sy); 1220 PRWORD(ovflw, " %*.0f", 3, 1, stat_id); 1221 *ovflwp = ovflw; 1222 } 1223 1224 void 1225 dointr(int verbose) 1226 { 1227 unsigned long *intrcnt, *ointrcnt; 1228 unsigned long long inttotal, uptime; 1229 int nintr, inamlen; 1230 char *intrname, *ointrname; 1231 1232 if (memf == NULL) { 1233 doevcnt(verbose, EVCNT_TYPE_INTR); 1234 return; 1235 } 1236 1237 inttotal = 0; 1238 uptime = getuptime(); 1239 nintr = intrnl[X_EINTRCNT].n_value - intrnl[X_INTRCNT].n_value; 1240 inamlen = intrnl[X_EINTRNAMES].n_value - intrnl[X_INTRNAMES].n_value; 1241 if (nintr != 0 && inamlen != 0) { 1242 (void)printf("%-34s %16s %8s\n", "interrupt", "total", "rate"); 1243 1244 ointrcnt = intrcnt = malloc((size_t)nintr); 1245 ointrname = intrname = malloc((size_t)inamlen); 1246 if (intrcnt == NULL || intrname == NULL) 1247 errx(1, "%s", ""); 1248 kread(intrnl, X_INTRCNT, intrcnt, (size_t)nintr); 1249 kread(intrnl, X_INTRNAMES, intrname, (size_t)inamlen); 1250 nintr /= sizeof(long); 1251 while (--nintr >= 0) { 1252 if (*intrcnt || verbose) 1253 (void)printf("%-34s %16llu %8llu\n", intrname, 1254 (unsigned long long)*intrcnt, 1255 (unsigned long long) 1256 (*intrcnt / uptime)); 1257 intrname += strlen(intrname) + 1; 1258 inttotal += *intrcnt++; 1259 } 1260 free(ointrcnt); 1261 free(ointrname); 1262 } 1263 1264 doevcnt(verbose, EVCNT_TYPE_INTR); 1265 } 1266 1267 void 1268 doevcnt(int verbose, int type) 1269 { 1270 static const char * const evtypes [] = { "misc", "intr", "trap" }; 1271 uint64_t counttotal, uptime; 1272 struct evcntlist allevents; 1273 struct evcnt evcnt, *evptr; 1274 size_t evlen_max, total_max, rate_max; 1275 char evgroup[EVCNT_STRING_MAX], evname[EVCNT_STRING_MAX]; 1276 1277 counttotal = 0; 1278 uptime = getuptime(); 1279 1280 if (memf == NULL) do { 1281 const int mib[4] = { CTL_KERN, KERN_EVCNT, type, 1282 verbose ? KERN_EVCNT_COUNT_ANY : KERN_EVCNT_COUNT_NONZERO }; 1283 size_t buflen0, buflen = 0; 1284 void *buf0, *buf = NULL; 1285 const struct evcnt_sysctl *evs, *last_evs; 1286 for (;;) { 1287 size_t newlen; 1288 int error; 1289 if (buflen) 1290 buf = malloc(buflen); 1291 error = sysctl(mib, __arraycount(mib), 1292 buf, &newlen, NULL, 0); 1293 if (error) { 1294 err(1, "kern.evcnt"); 1295 if (buf) 1296 free(buf); 1297 return; 1298 } 1299 if (newlen <= buflen) { 1300 buflen = newlen; 1301 break; 1302 } 1303 if (buf) 1304 free(buf); 1305 buflen = newlen; 1306 } 1307 buflen0 = buflen; 1308 evs = buf0 = buf; 1309 last_evs = (void *)((char *)buf + buflen); 1310 buflen /= sizeof(uint64_t); 1311 /* calc columns */ 1312 evlen_max = 0; 1313 total_max = sizeof("total") - 1; 1314 rate_max = sizeof("rate") - 1; 1315 while (evs < last_evs 1316 && buflen >= sizeof(*evs)/sizeof(uint64_t) 1317 && buflen >= evs->ev_len) { 1318 char cbuf[64]; 1319 size_t len; 1320 len = strlen(evs->ev_strings + evs->ev_grouplen + 1); 1321 len += evs->ev_grouplen + 1; 1322 if (evlen_max < len) 1323 evlen_max= len; 1324 len = snprintf(cbuf, sizeof(cbuf), "%"PRIu64, 1325 evs->ev_count); 1326 if (total_max < len) 1327 total_max = len; 1328 len = snprintf(cbuf, sizeof(cbuf), "%"PRIu64, 1329 evs->ev_count / uptime); 1330 if (rate_max < len) 1331 rate_max = len; 1332 buflen -= evs->ev_len; 1333 evs = (const void *) 1334 ((const uint64_t *)evs + evs->ev_len); 1335 } 1336 1337 (void)printf(type == EVCNT_TYPE_ANY ? 1338 "%-*s %*s %*s %s\n" : 1339 "%-*s %*s %*s\n", 1340 (int)evlen_max, "interrupt", 1341 (int)total_max, "total", 1342 (int)rate_max, "rate", 1343 "type"); 1344 1345 buflen = buflen0; 1346 evs = buf0; 1347 last_evs = (void *)((char *)buf + buflen); 1348 buflen /= sizeof(uint64_t); 1349 while (evs < last_evs 1350 && buflen >= sizeof(*evs)/sizeof(uint64_t) 1351 && buflen >= evs->ev_len) { 1352 (void)printf(type == EVCNT_TYPE_ANY ? 1353 "%s %s%*s %*"PRIu64" %*"PRIu64" %s\n" : 1354 "%s %s%*s %*"PRIu64" %*"PRIu64"\n", 1355 evs->ev_strings, 1356 evs->ev_strings + evs->ev_grouplen + 1, 1357 (int)evlen_max - (evs->ev_grouplen + 1 1358 + evs->ev_namelen), "", 1359 (int)total_max, evs->ev_count, 1360 (int)rate_max, evs->ev_count / uptime, 1361 (evs->ev_type < __arraycount(evtypes) ? 1362 evtypes[evs->ev_type] : "?")); 1363 buflen -= evs->ev_len; 1364 counttotal += evs->ev_count; 1365 evs = (const void *) 1366 ((const uint64_t *)evs + evs->ev_len); 1367 } 1368 free(buf); 1369 if (type != EVCNT_TYPE_ANY) 1370 (void)printf("%-*s %*"PRIu64" %*"PRIu64"\n", 1371 (int)evlen_max, "Total", 1372 (int)total_max, counttotal, 1373 (int)rate_max, counttotal / uptime); 1374 return; 1375 } while (0); 1376 1377 if (type == EVCNT_TYPE_ANY) 1378 (void)printf("%-34s %16s %8s %s\n", "event", "total", "rate", 1379 "type"); 1380 1381 kread(namelist, X_ALLEVENTS, &allevents, sizeof allevents); 1382 evptr = TAILQ_FIRST(&allevents); 1383 while (evptr) { 1384 deref_kptr(evptr, &evcnt, sizeof(evcnt), "event chain trashed"); 1385 1386 evptr = TAILQ_NEXT(&evcnt, ev_list); 1387 if (evcnt.ev_count == 0 && !verbose) 1388 continue; 1389 if (type != EVCNT_TYPE_ANY && evcnt.ev_type != type) 1390 continue; 1391 1392 deref_kptr(evcnt.ev_group, evgroup, 1393 (size_t)evcnt.ev_grouplen + 1, "event chain trashed"); 1394 deref_kptr(evcnt.ev_name, evname, 1395 (size_t)evcnt.ev_namelen + 1, "event chain trashed"); 1396 1397 (void)printf(type == EVCNT_TYPE_ANY ? 1398 "%s %s%*s %16"PRIu64" %8"PRIu64" %s\n" : 1399 "%s %s%*s %16"PRIu64" %8"PRIu64"\n", 1400 evgroup, evname, 1401 34 - (evcnt.ev_grouplen + 1 + evcnt.ev_namelen), "", 1402 evcnt.ev_count, 1403 (evcnt.ev_count / uptime), 1404 (evcnt.ev_type < __arraycount(evtypes) ? 1405 evtypes[evcnt.ev_type] : "?")); 1406 1407 counttotal += evcnt.ev_count; 1408 } 1409 if (type != EVCNT_TYPE_ANY) 1410 (void)printf("%-34s %16"PRIu64" %8"PRIu64"\n", 1411 "Total", counttotal, counttotal / uptime); 1412 } 1413 1414 static void 1415 dopool_sysctl(int verbose, int wide) 1416 { 1417 uint64_t total, inuse, this_total, this_inuse; 1418 struct { 1419 uint64_t pt_nget; 1420 uint64_t pt_nfail; 1421 uint64_t pt_nput; 1422 uint64_t pt_nout; 1423 uint64_t pt_nitems; 1424 uint64_t pt_npagealloc; 1425 uint64_t pt_npagefree; 1426 uint64_t pt_npages; 1427 } pool_totals; 1428 size_t i, len; 1429 int name_len, ovflw; 1430 struct pool_sysctl *pp, *data; 1431 char maxp[32]; 1432 1433 data = asysctlbyname("kern.pool", &len); 1434 if (data == NULL) 1435 err(1, "failed to read kern.pool"); 1436 1437 memset(&pool_totals, 0, sizeof pool_totals); 1438 total = inuse = 0; 1439 len /= sizeof(*data); 1440 1441 (void)printf("Memory resource pool statistics\n"); 1442 (void)printf( 1443 "%-*s%*s%*s%*s%*s%s%s%*s%*s%*s%s%*s%6s%*s%5s%s%s\n", 1444 wide ? 16 : 11, "Name", 1445 wide ? 7 : 5, "Size", 1446 wide ? 12 : 9, "Requests", 1447 wide ? 8 : 5, "Fail", 1448 wide ? 12 : 9, "Releases", 1449 wide ? " InUse" : "", 1450 wide ? " Avail" : "", 1451 wide ? 11 : 6, "Pgreq", 1452 wide ? 11 : 6, "Pgrel", 1453 wide ? 8 : 6, "Npage", 1454 wide ? " PageSz" : "", 1455 wide ? 7 : 6, "Hiwat", 1456 "Minpg", 1457 wide ? 7 : 6, "Maxpg", 1458 "Idle", 1459 wide ? " Flags" : "", 1460 wide ? " Util" : ""); 1461 1462 name_len = MIN((int)sizeof(pp->pr_wchan), wide ? 16 : 11); 1463 for (i = 0; i < len; ++i) { 1464 pp = &data[i]; 1465 if (pp->pr_nget == 0 && !verbose) 1466 continue; 1467 if (pp->pr_maxpages == UINT_MAX) 1468 (void)snprintf(maxp, sizeof(maxp), "inf"); 1469 else 1470 (void)snprintf(maxp, sizeof(maxp), "%" PRIu64, 1471 pp->pr_maxpages); 1472 ovflw = 0; 1473 PRWORD(ovflw, "%-*s", name_len, 0, pp->pr_wchan); 1474 PRWORD(ovflw, " %*" PRIu64, wide ? 7 : 5, 1, pp->pr_size); 1475 PRWORD(ovflw, " %*" PRIu64, wide ? 12 : 9, 1, pp->pr_nget); 1476 pool_totals.pt_nget += pp->pr_nget; 1477 PRWORD(ovflw, " %*" PRIu64, wide ? 8 : 5, 1, pp->pr_nfail); 1478 pool_totals.pt_nfail += pp->pr_nfail; 1479 PRWORD(ovflw, " %*" PRIu64, wide ? 12 : 9, 1, pp->pr_nput); 1480 pool_totals.pt_nput += pp->pr_nput; 1481 if (wide) { 1482 PRWORD(ovflw, " %*" PRIu64, 9, 1, pp->pr_nout); 1483 pool_totals.pt_nout += pp->pr_nout; 1484 PRWORD(ovflw, " %*" PRIu64, 9, 1, pp->pr_nitems); 1485 pool_totals.pt_nitems += pp->pr_nitems; 1486 } 1487 PRWORD(ovflw, " %*" PRIu64, wide ? 11 : 6, 1, pp->pr_npagealloc); 1488 pool_totals.pt_npagealloc += pp->pr_npagealloc; 1489 PRWORD(ovflw, " %*" PRIu64, wide ? 11 : 6, 1, pp->pr_npagefree); 1490 pool_totals.pt_npagefree += pp->pr_npagefree; 1491 PRWORD(ovflw, " %*" PRIu64, wide ? 8 : 6, 1, pp->pr_npages); 1492 pool_totals.pt_npages += pp->pr_npages; 1493 if (wide) 1494 PRWORD(ovflw, " %*" PRIu64, 7, 1, pp->pr_pagesize); 1495 PRWORD(ovflw, " %*" PRIu64, wide ? 7 : 6, 1, pp->pr_hiwat); 1496 PRWORD(ovflw, " %*" PRIu64, 6, 1, pp->pr_minpages); 1497 PRWORD(ovflw, " %*s", wide ? 7 : 6, 1, maxp); 1498 PRWORD(ovflw, " %*" PRIu64, 5, 1, pp->pr_nidle); 1499 if (wide) 1500 PRWORD(ovflw, " 0x%0*" PRIx64, 6, 1, 1501 pp->pr_flags); 1502 1503 this_inuse = pp->pr_nout * pp->pr_size; 1504 this_total = pp->pr_npages * pp->pr_pagesize; 1505 if (pp->pr_flags & PR_RECURSIVE) { 1506 /* 1507 * Don't count in-use memory, since it's part 1508 * of another pool and will be accounted for 1509 * there. 1510 */ 1511 total += (this_total - this_inuse); 1512 } else { 1513 inuse += this_inuse; 1514 total += this_total; 1515 } 1516 if (wide) { 1517 if (this_total == 0) 1518 (void)printf(" ---"); 1519 else 1520 (void)printf(" %5.1f%%", 1521 (100.0 * this_inuse) / this_total); 1522 } 1523 (void)printf("\n"); 1524 } 1525 ovflw = 0; 1526 PRWORD(ovflw, "%-*s", name_len, 0, "Totals"); 1527 PRWORD(ovflw, " %*s", wide ? 7 : 5, 1, ""); 1528 PRWORD(ovflw, " %*" PRIu64, wide ? 12 : 9, 1, pool_totals.pt_nget); 1529 PRWORD(ovflw, " %*" PRIu64, wide ? 8 : 5, 1, pool_totals.pt_nfail); 1530 PRWORD(ovflw, " %*" PRIu64, wide ? 12 : 9, 1, pool_totals.pt_nput); 1531 if (wide) { 1532 PRWORD(ovflw, " %*" PRIu64, 9, 1, pool_totals.pt_nout); 1533 PRWORD(ovflw, " %*" PRIu64, 9, 1, pool_totals.pt_nitems); 1534 } 1535 PRWORD(ovflw, " %*" PRIu64, wide ? 11 : 6, 1, pool_totals.pt_npagealloc); 1536 PRWORD(ovflw, " %*" PRIu64, wide ? 11 : 6, 1, pool_totals.pt_npagefree); 1537 PRWORD(ovflw, " %*" PRIu64, wide ? 8 : 6, 1, pool_totals.pt_npages); 1538 (void)printf("\n"); 1539 1540 inuse /= KILO; 1541 total /= KILO; 1542 (void)printf( 1543 "\nIn use %" PRIu64 "K, " 1544 "total allocated %" PRIu64 "K; utilization %.1f%%\n", 1545 inuse, total, (100.0 * inuse) / total); 1546 1547 free(data); 1548 } 1549 1550 void 1551 dopool(int verbose, int wide) 1552 { 1553 int first, ovflw; 1554 void *addr; 1555 long total, inuse, this_total, this_inuse; 1556 struct { 1557 uint64_t pt_nget; 1558 uint64_t pt_nfail; 1559 uint64_t pt_nput; 1560 uint64_t pt_nout; 1561 uint64_t pt_nitems; 1562 uint64_t pt_npagealloc; 1563 uint64_t pt_npagefree; 1564 uint64_t pt_npages; 1565 } pool_totals; 1566 TAILQ_HEAD(,pool) pool_head; 1567 struct pool pool, *pp = &pool; 1568 struct pool_allocator pa; 1569 char maxp[32], name[32]; 1570 1571 if (memf == NULL) { 1572 dopool_sysctl(verbose, wide); 1573 return; 1574 } 1575 1576 memset(&pool_totals, 0, sizeof pool_totals); 1577 kread(namelist, X_POOLHEAD, &pool_head, sizeof(pool_head)); 1578 addr = TAILQ_FIRST(&pool_head); 1579 1580 total = inuse = 0; 1581 1582 for (first = 1; addr != NULL; addr = TAILQ_NEXT(pp, pr_poollist) ) { 1583 deref_kptr(addr, pp, sizeof(*pp), "pool chain trashed"); 1584 deref_kptr(pp->pr_alloc, &pa, sizeof(pa), 1585 "pool allocator trashed"); 1586 deref_kptr(pp->pr_wchan, name, sizeof(name), 1587 "pool wait channel trashed"); 1588 name[sizeof(name)-1] = '\0'; 1589 1590 if (first) { 1591 (void)printf("Memory resource pool statistics\n"); 1592 (void)printf( 1593 "%-*s%*s%*s%*s%*s%s%s%*s%*s%*s%s%*s%6s%*s%5s%s%s\n", 1594 wide ? 16 : 11, "Name", 1595 wide ? 7 : 5, "Size", 1596 wide ? 12 : 9, "Requests", 1597 wide ? 8 : 5, "Fail", 1598 wide ? 12 : 9, "Releases", 1599 wide ? " InUse" : "", 1600 wide ? " Avail" : "", 1601 wide ? 11 : 6, "Pgreq", 1602 wide ? 11 : 6, "Pgrel", 1603 wide ? 8 : 6, "Npage", 1604 wide ? " PageSz" : "", 1605 wide ? 7 : 6, "Hiwat", 1606 "Minpg", 1607 wide ? 7 : 6, "Maxpg", 1608 "Idle", 1609 wide ? " Flags" : "", 1610 wide ? " Util" : ""); 1611 first = 0; 1612 } 1613 if (pp->pr_nget == 0 && !verbose) 1614 continue; 1615 if (pp->pr_maxpages == UINT_MAX) 1616 (void)snprintf(maxp, sizeof(maxp), "inf"); 1617 else 1618 (void)snprintf(maxp, sizeof(maxp), "%u", 1619 pp->pr_maxpages); 1620 ovflw = 0; 1621 PRWORD(ovflw, "%-*s", wide ? 16 : 11, 0, name); 1622 PRWORD(ovflw, " %*u", wide ? 7 : 5, 1, pp->pr_size); 1623 PRWORD(ovflw, " %*lu", wide ? 12 : 9, 1, pp->pr_nget); 1624 pool_totals.pt_nget += pp->pr_nget; 1625 PRWORD(ovflw, " %*lu", wide ? 8 : 5, 1, pp->pr_nfail); 1626 pool_totals.pt_nfail += pp->pr_nfail; 1627 PRWORD(ovflw, " %*lu", wide ? 12 : 9, 1, pp->pr_nput); 1628 pool_totals.pt_nput += pp->pr_nput; 1629 if (wide) { 1630 PRWORD(ovflw, " %*u", 9, 1, pp->pr_nout); 1631 pool_totals.pt_nout += pp->pr_nout; 1632 PRWORD(ovflw, " %*u", 9, 1, pp->pr_nitems); 1633 pool_totals.pt_nitems += pp->pr_nitems; 1634 } 1635 PRWORD(ovflw, " %*lu", wide ? 11 : 6, 1, pp->pr_npagealloc); 1636 pool_totals.pt_npagealloc += pp->pr_npagealloc; 1637 PRWORD(ovflw, " %*lu", wide ? 11 : 6, 1, pp->pr_npagefree); 1638 pool_totals.pt_npagefree += pp->pr_npagefree; 1639 PRWORD(ovflw, " %*u", wide ? 8 : 6, 1, pp->pr_npages); 1640 pool_totals.pt_npages += pp->pr_npages; 1641 if (wide) 1642 PRWORD(ovflw, " %*u", 7, 1, pa.pa_pagesz); 1643 PRWORD(ovflw, " %*u", wide ? 7 : 6, 1, pp->pr_hiwat); 1644 PRWORD(ovflw, " %*u", 6, 1, pp->pr_minpages); 1645 PRWORD(ovflw, " %*s", wide ? 7 : 6, 1, maxp); 1646 PRWORD(ovflw, " %*lu", 5, 1, pp->pr_nidle); 1647 if (wide) 1648 PRWORD(ovflw, " 0x%0*x", 6, 1, 1649 pp->pr_flags | pp->pr_roflags); 1650 1651 this_inuse = pp->pr_nout * pp->pr_size; 1652 this_total = pp->pr_npages * pa.pa_pagesz; 1653 if (pp->pr_roflags & PR_RECURSIVE) { 1654 /* 1655 * Don't count in-use memory, since it's part 1656 * of another pool and will be accounted for 1657 * there. 1658 */ 1659 total += (this_total - this_inuse); 1660 } else { 1661 inuse += this_inuse; 1662 total += this_total; 1663 } 1664 if (wide) { 1665 if (this_total == 0) 1666 (void)printf(" ---"); 1667 else 1668 (void)printf(" %5.1f%%", 1669 (100.0 * this_inuse) / this_total); 1670 } 1671 (void)printf("\n"); 1672 } 1673 ovflw = 0; 1674 PRWORD(ovflw, "%-*s", wide ? 16 : 11, 0, "Totals"); 1675 PRWORD(ovflw, " %*s", wide ? 7 : 5, 1, ""); 1676 PRWORD(ovflw, " %*" PRIu64, wide ? 12 : 9, 1, pool_totals.pt_nget); 1677 PRWORD(ovflw, " %*" PRIu64, wide ? 8 : 5, 1, pool_totals.pt_nfail); 1678 PRWORD(ovflw, " %*" PRIu64, wide ? 12 : 9, 1, pool_totals.pt_nput); 1679 if (wide) { 1680 PRWORD(ovflw, " %*" PRIu64, 9, 1, pool_totals.pt_nout); 1681 PRWORD(ovflw, " %*" PRIu64, 9, 1, pool_totals.pt_nitems); 1682 } 1683 PRWORD(ovflw, " %*" PRIu64, wide ? 11 : 6, 1, pool_totals.pt_npagealloc); 1684 PRWORD(ovflw, " %*" PRIu64, wide ? 11 : 6, 1, pool_totals.pt_npagefree); 1685 PRWORD(ovflw, " %*" PRIu64, wide ? 8 : 6, 1, pool_totals.pt_npages); 1686 (void)printf("\n"); 1687 1688 inuse /= KILO; 1689 total /= KILO; 1690 (void)printf( 1691 "\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n", 1692 inuse, total, (100.0 * inuse) / total); 1693 } 1694 1695 static void 1696 dopoolcache_sysctl(int verbose) 1697 { 1698 struct pool_sysctl *data, *pp; 1699 size_t i, len; 1700 bool first = true; 1701 int ovflw; 1702 uint64_t tot; 1703 double p; 1704 1705 data = asysctlbyname("kern.pool", &len); 1706 if (data == NULL) 1707 err(1, "failed to read kern.pool"); 1708 len /= sizeof(*data); 1709 1710 for (i = 0; i < len; ++i) { 1711 pp = &data[i]; 1712 if (pp->pr_cache_meta_size == 0) 1713 continue; 1714 1715 if (pp->pr_cache_nmiss_global == 0 && !verbose) 1716 continue; 1717 1718 if (first) { 1719 (void)printf("Pool cache statistics.\n"); 1720 (void)printf("%-*s%*s%*s%*s%*s%*s%*s%*s%*s%*s\n", 1721 12, "Name", 1722 6, "Spin", 1723 6, "GrpSz", 1724 5, "Full", 1725 5, "Emty", 1726 10, "PoolLayer", 1727 11, "CacheLayer", 1728 6, "Hit%", 1729 12, "CpuLayer", 1730 6, "Hit%" 1731 ); 1732 first = false; 1733 } 1734 1735 ovflw = 0; 1736 PRWORD(ovflw, "%-*s", MIN((int)sizeof(pp->pr_wchan), 13), 1, 1737 pp->pr_wchan); 1738 PRWORD(ovflw, " %*" PRIu64, 6, 1, pp->pr_cache_ncontended); 1739 PRWORD(ovflw, " %*" PRIu64, 6, 1, pp->pr_cache_meta_size); 1740 PRWORD(ovflw, " %*" PRIu64, 5, 1, pp->pr_cache_nfull); 1741 PRWORD(ovflw, " %*" PRIu64, 5, 1, pp->pr_cache_nempty); 1742 PRWORD(ovflw, " %*" PRIu64, 10, 1, pp->pr_cache_nmiss_global); 1743 1744 tot = pp->pr_cache_nhit_global + pp->pr_cache_nmiss_global; 1745 p = pp->pr_cache_nhit_global * 100.0 / tot; 1746 PRWORD(ovflw, " %*" PRIu64, 11, 1, tot); 1747 PRWORD(ovflw, " %*.1f", 6, 1, p); 1748 1749 tot = pp->pr_cache_nhit_pcpu + pp->pr_cache_nmiss_pcpu; 1750 p = pp->pr_cache_nhit_pcpu * 100.0 / tot; 1751 PRWORD(ovflw, " %*" PRIu64, 12, 1, tot); 1752 PRWORD(ovflw, " %*.1f", 6, 1, p); 1753 printf("\n"); 1754 } 1755 } 1756 1757 void 1758 dopoolcache(int verbose) 1759 { 1760 struct pool_cache pool_cache, *pc = &pool_cache; 1761 pool_cache_cpu_t cache_cpu, *cc = &cache_cpu; 1762 TAILQ_HEAD(,pool) pool_head; 1763 struct pool pool, *pp = &pool; 1764 char name[32]; 1765 uint64_t cpuhit, cpumiss, pchit, pcmiss, contended, tot; 1766 uint32_t nfull; 1767 void *addr; 1768 int first, ovflw; 1769 size_t i; 1770 double p; 1771 1772 if (memf == NULL) { 1773 dopoolcache_sysctl(verbose); 1774 return; 1775 } 1776 1777 kread(namelist, X_POOLHEAD, &pool_head, sizeof(pool_head)); 1778 addr = TAILQ_FIRST(&pool_head); 1779 1780 for (first = 1; addr != NULL; addr = TAILQ_NEXT(pp, pr_poollist) ) { 1781 deref_kptr(addr, pp, sizeof(*pp), "pool chain trashed"); 1782 if (pp->pr_cache == NULL) 1783 continue; 1784 deref_kptr(pp->pr_wchan, name, sizeof(name), 1785 "pool wait channel trashed"); 1786 deref_kptr(pp->pr_cache, pc, sizeof(*pc), "pool cache trashed"); 1787 name[sizeof(name)-1] = '\0'; 1788 1789 cpuhit = 0; 1790 cpumiss = 0; 1791 pcmiss = 0; 1792 contended = 0; 1793 nfull = 0; 1794 for (i = 0; i < __arraycount(pc->pc_cpus); i++) { 1795 if ((addr = pc->pc_cpus[i]) == NULL) 1796 continue; 1797 deref_kptr(addr, cc, sizeof(*cc), 1798 "pool cache cpu trashed"); 1799 cpuhit += cc->cc_hits; 1800 cpumiss += cc->cc_misses; 1801 pcmiss += cc->cc_pcmisses; 1802 nfull += cc->cc_nfull; 1803 contended += cc->cc_contended; 1804 } 1805 pchit = cpumiss - pcmiss; 1806 1807 if (pcmiss == 0 && !verbose) 1808 continue; 1809 1810 if (first) { 1811 (void)printf("Pool cache statistics.\n"); 1812 (void)printf("%-*s%*s%*s%*s%*s%*s%*s%*s%*s%*s\n", 1813 12, "Name", 1814 6, "Spin", 1815 6, "GrpSz", 1816 5, "Full", 1817 5, "Emty", 1818 10, "PoolLayer", 1819 11, "CacheLayer", 1820 6, "Hit%", 1821 12, "CpuLayer", 1822 6, "Hit%" 1823 ); 1824 first = 0; 1825 } 1826 1827 ovflw = 0; 1828 PRWORD(ovflw, "%-*s", 13, 1, name); 1829 PRWORD(ovflw, " %*llu", 6, 1, (long long)contended); 1830 PRWORD(ovflw, " %*u", 6, 1, pc->pc_pcgsize); 1831 PRWORD(ovflw, " %*u", 5, 1, nfull); 1832 PRWORD(ovflw, " %*u", 5, 1, 0); 1833 PRWORD(ovflw, " %*llu", 10, 1, (long long)pcmiss); 1834 1835 tot = pchit + pcmiss; 1836 p = pchit * 100.0 / (tot); 1837 PRWORD(ovflw, " %*llu", 11, 1, (long long)tot); 1838 PRWORD(ovflw, " %*.1f", 6, 1, p); 1839 1840 tot = cpuhit + cpumiss; 1841 p = cpuhit * 100.0 / (tot); 1842 PRWORD(ovflw, " %*llu", 12, 1, (long long)tot); 1843 PRWORD(ovflw, " %*.1f", 6, 1, p); 1844 printf("\n"); 1845 } 1846 } 1847 1848 enum hashtype { /* from <sys/systm.h> */ 1849 HASH_LIST, 1850 HASH_SLIST, 1851 HASH_TAILQ, 1852 HASH_PSLIST 1853 }; 1854 1855 struct uidinfo { /* XXX: no kernel header file */ 1856 LIST_ENTRY(uidinfo) ui_hash; 1857 uid_t ui_uid; 1858 long ui_proccnt; 1859 }; 1860 1861 struct kernel_hash { 1862 const char * description; /* description */ 1863 int hashsize; /* nlist index for hash size */ 1864 int hashtbl; /* nlist index for hash table */ 1865 enum hashtype type; /* type of hash table */ 1866 size_t offset; /* offset of {LIST,TAILQ}_NEXT */ 1867 } khashes[] = 1868 { 1869 { 1870 "buffer hash", 1871 X_BUFHASH, X_BUFHASHTBL, 1872 HASH_LIST, offsetof(struct buf, b_hash) 1873 }, { 1874 "ipv4 address -> interface hash", 1875 X_IFADDRHASH, X_IFADDRHASHTBL, 1876 HASH_LIST, offsetof(struct in_ifaddr, ia_hash), 1877 }, { 1878 "user info (uid -> used processes) hash", 1879 X_UIHASH, X_UIHASHTBL, 1880 HASH_LIST, offsetof(struct uidinfo, ui_hash), 1881 }, { 1882 "vnode cache hash", 1883 X_VCACHEHASH, X_VCACHETBL, 1884 HASH_SLIST, offsetof(struct vnode_impl, vi_hash), 1885 }, { 1886 NULL, -1, -1, 0, 0, 1887 } 1888 }; 1889 1890 void 1891 dohashstat(int verbose, int todo, const char *hashname) 1892 { 1893 LIST_HEAD(, generic) *hashtbl_list; 1894 SLIST_HEAD(, generic) *hashtbl_slist; 1895 TAILQ_HEAD(, generic) *hashtbl_tailq; 1896 struct kernel_hash *curhash; 1897 void *hashaddr, *hashbuf, *nhashbuf, *nextaddr; 1898 size_t elemsize, hashbufsize, thissize; 1899 u_long hashsize, i; 1900 int used, items, chain, maxchain; 1901 1902 if (memf == NULL) { 1903 dohashstat_sysctl(verbose, todo, hashname); 1904 return; 1905 } 1906 1907 hashbuf = NULL; 1908 hashbufsize = 0; 1909 1910 if (todo & HASHLIST) { 1911 (void)printf("Supported hashes:\n"); 1912 for (curhash = khashes; curhash->description; curhash++) { 1913 if (hashnl[curhash->hashsize].n_value == 0 || 1914 hashnl[curhash->hashtbl].n_value == 0) 1915 continue; 1916 (void)printf("\t%-16s%s\n", 1917 hashnl[curhash->hashsize].n_name + 1, 1918 curhash->description); 1919 } 1920 return; 1921 } 1922 1923 if (hashname != NULL) { 1924 for (curhash = khashes; curhash->description; curhash++) { 1925 if (strcmp(hashnl[curhash->hashsize].n_name + 1, 1926 hashname) == 0 && 1927 hashnl[curhash->hashsize].n_value != 0 && 1928 hashnl[curhash->hashtbl].n_value != 0) 1929 break; 1930 } 1931 if (curhash->description == NULL) { 1932 warnx("%s: no such hash", hashname); 1933 return; 1934 } 1935 } 1936 1937 (void)printf( 1938 "%-16s %8s %8s %8s %8s %8s %8s\n" 1939 "%-16s %8s %8s %8s %8s %8s %8s\n", 1940 "", "total", "used", "util", "num", "average", "maximum", 1941 "hash table", "buckets", "buckets", "%", "items", "chain", 1942 "chain"); 1943 1944 for (curhash = khashes; curhash->description; curhash++) { 1945 if (hashnl[curhash->hashsize].n_value == 0 || 1946 hashnl[curhash->hashtbl].n_value == 0) 1947 continue; 1948 if (hashname != NULL && 1949 strcmp(hashnl[curhash->hashsize].n_name + 1, hashname)) 1950 continue; 1951 switch (curhash->type) { 1952 case HASH_LIST: 1953 elemsize = sizeof(*hashtbl_list); 1954 break; 1955 case HASH_SLIST: 1956 elemsize = sizeof(*hashtbl_slist); 1957 break; 1958 case HASH_TAILQ: 1959 elemsize = sizeof(*hashtbl_tailq); 1960 break; 1961 default: 1962 /* shouldn't get here */ 1963 continue; 1964 } 1965 deref_kptr((void *)hashnl[curhash->hashsize].n_value, 1966 &hashsize, sizeof(hashsize), 1967 hashnl[curhash->hashsize].n_name); 1968 hashsize++; 1969 deref_kptr((void *)hashnl[curhash->hashtbl].n_value, 1970 &hashaddr, sizeof(hashaddr), 1971 hashnl[curhash->hashtbl].n_name); 1972 if (verbose) 1973 (void)printf( 1974 "%s %lu, %s %p, offset %ld, elemsize %llu\n", 1975 hashnl[curhash->hashsize].n_name + 1, hashsize, 1976 hashnl[curhash->hashtbl].n_name + 1, hashaddr, 1977 (long)curhash->offset, 1978 (unsigned long long)elemsize); 1979 thissize = hashsize * elemsize; 1980 if (hashbuf == NULL || thissize > hashbufsize) { 1981 if ((nhashbuf = realloc(hashbuf, thissize)) == NULL) 1982 errx(1, "malloc hashbuf %llu", 1983 (unsigned long long)hashbufsize); 1984 hashbuf = nhashbuf; 1985 hashbufsize = thissize; 1986 } 1987 deref_kptr(hashaddr, hashbuf, thissize, 1988 hashnl[curhash->hashtbl].n_name); 1989 used = 0; 1990 items = maxchain = 0; 1991 if (curhash->type == HASH_LIST) { 1992 hashtbl_list = hashbuf; 1993 hashtbl_slist = NULL; 1994 hashtbl_tailq = NULL; 1995 } else if (curhash->type == HASH_SLIST) { 1996 hashtbl_list = NULL; 1997 hashtbl_slist = hashbuf; 1998 hashtbl_tailq = NULL; 1999 } else { 2000 hashtbl_list = NULL; 2001 hashtbl_slist = NULL; 2002 hashtbl_tailq = hashbuf; 2003 } 2004 for (i = 0; i < hashsize; i++) { 2005 if (curhash->type == HASH_LIST) 2006 nextaddr = LIST_FIRST(&hashtbl_list[i]); 2007 else if (curhash->type == HASH_SLIST) 2008 nextaddr = SLIST_FIRST(&hashtbl_slist[i]); 2009 else 2010 nextaddr = TAILQ_FIRST(&hashtbl_tailq[i]); 2011 if (nextaddr == NULL) 2012 continue; 2013 if (verbose) 2014 (void)printf("%5lu: %p\n", i, nextaddr); 2015 used++; 2016 chain = 0; 2017 do { 2018 chain++; 2019 deref_kptr((char *)nextaddr + curhash->offset, 2020 &nextaddr, sizeof(void *), 2021 "hash chain corrupted"); 2022 if (verbose > 1) 2023 (void)printf("got nextaddr as %p\n", 2024 nextaddr); 2025 } while (nextaddr != NULL); 2026 items += chain; 2027 if (verbose && chain > 1) 2028 (void)printf("\tchain = %d\n", chain); 2029 if (chain > maxchain) 2030 maxchain = chain; 2031 } 2032 (void)printf("%-16s %8ld %8d %8.2f %8d %8.2f %8d\n", 2033 hashnl[curhash->hashsize].n_name + 1, 2034 hashsize, used, used * 100.0 / hashsize, 2035 items, used ? (double)items / used : 0.0, maxchain); 2036 } 2037 } 2038 2039 void 2040 dohashstat_sysctl(int verbose, int todo, const char *hashname) 2041 { 2042 struct hashstat_sysctl hash, *data, *hs; 2043 int mib[3]; 2044 int error; 2045 size_t i, len, miblen; 2046 2047 2048 miblen = __arraycount(mib); 2049 error = sysctlnametomib("kern.hashstat", mib, &miblen); 2050 if (error) 2051 err(EXIT_FAILURE, "nametomib kern.hashstat failed"); 2052 assert(miblen < 3); 2053 2054 if (todo & HASHLIST) { 2055 mib[miblen] = CTL_DESCRIBE; 2056 miblen++; 2057 }; 2058 2059 if (hashname) { 2060 mib[miblen] = CTL_QUERY; 2061 miblen++; 2062 memset(&hash, 0, sizeof(hash)); 2063 strlcpy(hash.hash_name, hashname, sizeof(hash.hash_name)); 2064 len = sizeof(hash); 2065 error = sysctl(mib, miblen, &hash, &len, &hash, len); 2066 if (error == ENOENT) { 2067 err(1, "hash '%s' not found", hashname); 2068 return; 2069 } else if (error) { 2070 err(1, "sysctl kern.hashstat query failed"); 2071 return; 2072 } 2073 2074 data = &hash; 2075 len = 1; 2076 } else { 2077 data = asysctl(mib, miblen, &len); 2078 if (data == NULL) 2079 err(1, "failed to read kern.hashstat"); 2080 len /= sizeof(*data); 2081 } 2082 2083 if (todo & HASHLIST) { 2084 printf("Supported hashes:\n"); 2085 for (i = 0, hs = data; i < len; i++, hs++) { 2086 printf("\t%-16s%s\n", hs->hash_name, hs->hash_desc); 2087 } 2088 } else { 2089 printf("%-16s %8s %8s %8s %8s %8s %8s\n" 2090 "%-16s %8s %8s %8s %8s %8s %8s\n", 2091 "", "total", "used", "util", "num", "average", "maximum", 2092 "hash table", "buckets", "buckets", "%", "items", "chain", 2093 "chain"); 2094 for (i = 0, hs = data; i < len; i++, hs++) { 2095 printf("%-16s %8"PRId64" %8"PRId64" %8.2f %8"PRId64 2096 " %8.2f %8"PRId64"\n", 2097 hs->hash_name, hs->hash_size, hs->hash_used, 2098 hs->hash_used * 100.0 / hs->hash_size, hs->hash_items, 2099 hs->hash_used ? (double)hs->hash_items / hs->hash_used : 0.0, 2100 hs->hash_maxchain); 2101 } 2102 } 2103 2104 if (!hashname && (data != NULL)) 2105 free(data); 2106 } 2107 2108 /* 2109 * kreadc like kread but returns 1 if successful, 0 otherwise 2110 */ 2111 int 2112 kreadc(struct nlist *nl, int nlx, void *addr, size_t size) 2113 { 2114 const char *sym; 2115 2116 sym = nl[nlx].n_name; 2117 if (*sym == '_') 2118 ++sym; 2119 if (nl[nlx].n_type == 0 || nl[nlx].n_value == 0) 2120 return 0; 2121 deref_kptr((void *)nl[nlx].n_value, addr, size, sym); 2122 return 1; 2123 } 2124 2125 /* 2126 * kread reads something from the kernel, given its nlist index in namelist[]. 2127 */ 2128 void 2129 kread(struct nlist *nl, int nlx, void *addr, size_t size) 2130 { 2131 const char *sym; 2132 2133 sym = nl[nlx].n_name; 2134 if (*sym == '_') 2135 ++sym; 2136 if (nl[nlx].n_type == 0 || nl[nlx].n_value == 0) 2137 errx(1, "symbol %s not defined", sym); 2138 deref_kptr((void *)nl[nlx].n_value, addr, size, sym); 2139 } 2140 2141 /* 2142 * Dereference the kernel pointer `kptr' and fill in the local copy 2143 * pointed to by `ptr'. The storage space must be pre-allocated, 2144 * and the size of the copy passed in `len'. 2145 */ 2146 void 2147 deref_kptr(const void *kptr, void *ptr, size_t len, const char *msg) 2148 { 2149 2150 if (*msg == '_') 2151 msg++; 2152 if ((size_t)kvm_read(kd, (u_long)kptr, (char *)ptr, len) != len) 2153 errx(1, "kptr %lx: %s: %s", (u_long)kptr, msg, kvm_geterr(kd)); 2154 } 2155 2156 /* 2157 * Traverse the kernel history buffers, performing the requested action. 2158 * 2159 * Note, we assume that if we're not listing, we're dumping. 2160 */ 2161 void 2162 hist_traverse(int todo, const char *histname) 2163 { 2164 struct kern_history_head histhead; 2165 struct kern_history hist, *histkva; 2166 char *name = NULL; 2167 size_t namelen = 0; 2168 2169 if (histnl[0].n_value == 0) { 2170 warnx("kernel history is not compiled into the kernel."); 2171 return; 2172 } 2173 2174 deref_kptr((void *)histnl[X_KERN_HISTORIES].n_value, &histhead, 2175 sizeof(histhead), histnl[X_KERN_HISTORIES].n_name); 2176 2177 if (histhead.lh_first == NULL) { 2178 warnx("No active kernel history logs."); 2179 return; 2180 } 2181 2182 if (todo & HISTLIST) 2183 (void)printf("Active kernel histories:"); 2184 2185 for (histkva = LIST_FIRST(&histhead); histkva != NULL; 2186 histkva = LIST_NEXT(&hist, list)) { 2187 deref_kptr(histkva, &hist, sizeof(hist), "histkva"); 2188 if (name == NULL || hist.namelen > namelen) { 2189 if (name != NULL) 2190 free(name); 2191 namelen = hist.namelen; 2192 if ((name = malloc(namelen + 1)) == NULL) 2193 err(1, "malloc history name"); 2194 } 2195 2196 deref_kptr(hist.name, name, namelen, "history name"); 2197 name[namelen] = '\0'; 2198 if (todo & HISTLIST) 2199 (void)printf(" %s", name); 2200 else { 2201 /* 2202 * If we're dumping all histories, do it, else 2203 * check to see if this is the one we want. 2204 */ 2205 if (histname == NULL || strcmp(histname, name) == 0) { 2206 if (histname == NULL) 2207 (void)printf( 2208 "\nkernel history `%s':\n", name); 2209 hist_dodump(&hist); 2210 } 2211 } 2212 } 2213 2214 if (todo & HISTLIST) 2215 (void)putchar('\n'); 2216 2217 if (name != NULL) 2218 free(name); 2219 } 2220 2221 /* 2222 * Actually dump the history buffer at the specified KVA. 2223 */ 2224 void 2225 hist_dodump(struct kern_history *histp) 2226 { 2227 struct kern_history_ent *histents, *e; 2228 struct timeval tv; 2229 size_t histsize; 2230 char *fmt = NULL, *fn = NULL; 2231 size_t fmtlen = 0, fnlen = 0; 2232 unsigned i; 2233 2234 histsize = sizeof(struct kern_history_ent) * histp->n; 2235 2236 if ((histents = malloc(histsize)) == NULL) 2237 err(1, "malloc history entries"); 2238 2239 (void)memset(histents, 0, histsize); 2240 2241 (void)printf("%"PRIu32" entries, next is %"PRIu32"\n", 2242 histp->n, histp->f); 2243 2244 deref_kptr(histp->e, histents, histsize, "history entries"); 2245 i = histp->f; 2246 do { 2247 e = &histents[i]; 2248 if (e->fmt != NULL) { 2249 if (fmt == NULL || e->fmtlen > fmtlen) { 2250 free(fmt); 2251 fmtlen = e->fmtlen; 2252 if ((fmt = malloc(fmtlen + 1)) == NULL) 2253 err(1, "malloc printf format"); 2254 } 2255 if (fn == NULL || e->fnlen > fnlen) { 2256 free(fn); 2257 fnlen = e->fnlen; 2258 if ((fn = malloc(fnlen + 1)) == NULL) 2259 err(1, "malloc function name"); 2260 } 2261 2262 deref_kptr(e->fmt, fmt, fmtlen, "printf format"); 2263 fmt[fmtlen] = '\0'; 2264 for (unsigned z = 0; z < fmtlen - 1; z++) { 2265 if (fmt[z] == '%' && fmt[z+1] == 's') 2266 fmt[z+1] = 'p'; 2267 } 2268 2269 deref_kptr(e->fn, fn, fnlen, "function name"); 2270 fn[fnlen] = '\0'; 2271 2272 bintime2timeval(&e->bt, &tv); 2273 (void)printf("%06ld.%06ld ", (long int)tv.tv_sec, 2274 (long int)tv.tv_usec); 2275 (void)printf("%s#%" PRId32 "@%" PRId32 "d: ", 2276 fn, e->call, e->cpunum); 2277 (void)printf(fmt, e->v[0], e->v[1], e->v[2], e->v[3]); 2278 (void)putchar('\n'); 2279 } 2280 i = (i + 1) % histp->n; 2281 } while (i != histp->f); 2282 2283 free(histents); 2284 free(fmt); 2285 free(fn); 2286 } 2287 2288 void 2289 hist_traverse_sysctl(int todo, const char *histname) 2290 { 2291 int error; 2292 int mib[4]; 2293 unsigned int i; 2294 size_t len, miblen; 2295 struct sysctlnode query, histnode[32]; 2296 2297 /* retrieve names of available histories */ 2298 miblen = __arraycount(mib); 2299 error = sysctlnametomib("kern.hist", mib, &miblen); 2300 if (error != 0) { 2301 if (errno == ENOENT) { 2302 warnx("kernel history is not compiled into the kernel."); 2303 return; 2304 } else 2305 err(EXIT_FAILURE, "nametomib kern.hist failed"); 2306 } 2307 2308 /* get the list of nodenames below kern.hist */ 2309 mib[2] = CTL_QUERY; 2310 memset(&query, 0, sizeof(query)); 2311 query.sysctl_flags = SYSCTL_VERSION; 2312 len = sizeof(histnode); 2313 error = sysctl(mib, 3, &histnode[0], &len, &query, sizeof(query)); 2314 if (error != 0) { 2315 err(1, "query failed"); 2316 return; 2317 } 2318 if (len == 0) { 2319 warnx("No active kernel history logs."); 2320 return; 2321 } 2322 2323 len = len / sizeof(histnode[0]); /* get # of entries returned */ 2324 2325 if (todo & HISTLIST) 2326 (void)printf("Active kernel histories:"); 2327 2328 for (i = 0; i < len; i++) { 2329 if (todo & HISTLIST) 2330 (void)printf(" %s", histnode[i].sysctl_name); 2331 else { 2332 /* 2333 * If we're dumping all histories, do it, else 2334 * check to see if this is the one we want. 2335 */ 2336 if (histname == NULL || 2337 strcmp(histname, histnode[i].sysctl_name) == 0) { 2338 if (histname == NULL) 2339 (void)printf( 2340 "\nkernel history `%s':\n", 2341 histnode[i].sysctl_name); 2342 mib[2] = histnode[i].sysctl_num; 2343 mib[3] = CTL_EOL; 2344 hist_dodump_sysctl(mib, 4); 2345 } 2346 } 2347 } 2348 2349 if (todo & HISTLIST) 2350 (void)putchar('\n'); 2351 else if (mib[2] == CTL_QUERY) 2352 warnx("history %s not found", histname); 2353 } 2354 2355 /* 2356 * Actually dump the history buffer at the specified KVA. 2357 */ 2358 void 2359 hist_dodump_sysctl(int mib[], unsigned int miblen) 2360 { 2361 struct sysctl_history *hist; 2362 struct timeval tv; 2363 struct sysctl_history_event *e; 2364 size_t histsize; 2365 char *strp; 2366 unsigned i; 2367 char *fmt = NULL, *fn = NULL; 2368 2369 hist = NULL; 2370 histsize = 0; 2371 do { 2372 errno = 0; 2373 if (sysctl(mib, miblen, hist, &histsize, NULL, 0) == 0) 2374 break; 2375 if (errno != ENOMEM) 2376 break; 2377 if ((hist = realloc(hist, histsize)) == NULL) 2378 errx(1, "realloc history buffer"); 2379 } while (errno == ENOMEM); 2380 if (errno != 0) 2381 err(1, "sysctl failed"); 2382 2383 strp = (char *)(&hist->sh_events[hist->sh_numentries]); 2384 2385 (void)printf("%"PRIu32" entries, next is %"PRIu32"\n", 2386 hist->sh_numentries, 2387 hist->sh_nextfree); 2388 2389 i = hist->sh_nextfree; 2390 2391 do { 2392 e = &hist->sh_events[i]; 2393 if (e->she_fmtoffset != 0) { 2394 fmt = &strp[e->she_fmtoffset]; 2395 size_t fmtlen = strlen(fmt); 2396 for (unsigned z = 0; z < fmtlen - 1; z++) { 2397 if (fmt[z] == '%' && fmt[z+1] == 's') 2398 fmt[z+1] = 'p'; 2399 } 2400 fn = &strp[e->she_funcoffset]; 2401 bintime2timeval(&e->she_bintime, &tv); 2402 (void)printf("%06ld.%06ld %s#%"PRIu32"@%"PRIu32": ", 2403 (long int)tv.tv_sec, (long int)tv.tv_usec, 2404 fn, e->she_callnumber, e->she_cpunum); 2405 (void)printf(fmt, e->she_values[0], e->she_values[1], 2406 e->she_values[2], e->she_values[3]); 2407 (void)putchar('\n'); 2408 } 2409 i = (i + 1) % hist->sh_numentries; 2410 } while (i != hist->sh_nextfree); 2411 2412 free(hist); 2413 } 2414 2415 static void 2416 usage(void) 2417 { 2418 2419 (void)fprintf(stderr, 2420 "usage: %s [-CefHiLlmstUvW] [-c count] [-h hashname] [-M core] [-N system]\n" 2421 "\t\t[-u histname] [-w wait] [disks]\n", getprogname()); 2422 exit(1); 2423 } 2424