vmstat.c revision 1.159
1/* $NetBSD: vmstat.c,v 1.159 2008/06/04 12:47:47 ad 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\n\ 66 The Regents of the University of California. All rights reserved.\n"); 67#endif /* not lint */ 68 69#ifndef lint 70#if 0 71static char sccsid[] = "@(#)vmstat.c 8.2 (Berkeley) 3/1/95"; 72#else 73__RCSID("$NetBSD: vmstat.c,v 1.159 2008/06/04 12:47:47 ad Exp $"); 74#endif 75#endif /* not lint */ 76 77#define __POOL_EXPOSE 78 79#include <sys/param.h> 80#include <sys/mount.h> 81#include <sys/uio.h> 82 83#include <sys/buf.h> 84#include <sys/evcnt.h> 85#include <sys/ioctl.h> 86#include <sys/malloc.h> 87#include <sys/mallocvar.h> 88#include <sys/namei.h> 89#include <sys/pool.h> 90#include <sys/proc.h> 91#include <sys/sched.h> 92#include <sys/socket.h> 93#include <sys/sysctl.h> 94#include <sys/time.h> 95#include <sys/user.h> 96 97#include <uvm/uvm_extern.h> 98#include <uvm/uvm_stat.h> 99 100#include <net/if.h> 101#include <netinet/in.h> 102#include <netinet/in_var.h> 103 104#include <ufs/ufs/inode.h> 105 106#include <nfs/rpcv2.h> 107#include <nfs/nfsproto.h> 108#include <nfs/nfsnode.h> 109 110#include <ctype.h> 111#include <err.h> 112#include <errno.h> 113#include <fcntl.h> 114#include <kvm.h> 115#include <limits.h> 116#include <nlist.h> 117#undef n_hash 118#include <paths.h> 119#include <signal.h> 120#include <stdio.h> 121#include <stddef.h> 122#include <stdlib.h> 123#include <string.h> 124#include <time.h> 125#include <unistd.h> 126#include <util.h> 127 128#include "drvstats.h" 129 130/* 131 * General namelist 132 */ 133struct nlist namelist[] = 134{ 135#define X_BOOTTIME 0 136 { .n_name = "_boottime" }, 137#define X_HZ 1 138 { .n_name = "_hz" }, 139#define X_STATHZ 2 140 { .n_name = "_stathz" }, 141#define X_NCHSTATS 3 142 { .n_name = "_nchstats" }, 143#define X_KMEMSTAT 4 144 { .n_name = "_kmemstatistics" }, 145#define X_KMEMBUCKETS 5 146 { .n_name = "_kmembuckets" }, 147#define X_ALLEVENTS 6 148 { .n_name = "_allevents" }, 149#define X_POOLHEAD 7 150 { .n_name = "_pool_head" }, 151#define X_UVMEXP 8 152 { .n_name = "_uvmexp" }, 153#define X_TIME_SECOND 9 154 { .n_name = "_time_second" }, 155#define X_TIME 10 156 { .n_name = "_time" }, 157#define X_NL_SIZE 11 158 { .n_name = NULL }, 159}; 160 161/* 162 * Namelist for pre-evcnt interrupt counters. 163 */ 164struct nlist intrnl[] = 165{ 166#define X_INTRNAMES 0 167 { .n_name = "_intrnames" }, 168#define X_EINTRNAMES 1 169 { .n_name = "_eintrnames" }, 170#define X_INTRCNT 2 171 { .n_name = "_intrcnt" }, 172#define X_EINTRCNT 3 173 { .n_name = "_eintrcnt" }, 174#define X_INTRNL_SIZE 4 175 { .n_name = NULL }, 176}; 177 178 179/* 180 * Namelist for hash statistics 181 */ 182struct nlist hashnl[] = 183{ 184#define X_NFSNODE 0 185 { .n_name = "_nfsnodehash" }, 186#define X_NFSNODETBL 1 187 { .n_name = "_nfsnodehashtbl" }, 188#define X_IHASH 2 189 { .n_name = "_ihash" }, 190#define X_IHASHTBL 3 191 { .n_name = "_ihashtbl" }, 192#define X_BUFHASH 4 193 { .n_name = "_bufhash" }, 194#define X_BUFHASHTBL 5 195 { .n_name = "_bufhashtbl" }, 196#define X_UIHASH 6 197 { .n_name = "_uihash" }, 198#define X_UIHASHTBL 7 199 { .n_name = "_uihashtbl" }, 200#define X_IFADDRHASH 8 201 { .n_name = "_in_ifaddrhash" }, 202#define X_IFADDRHASHTBL 9 203 { .n_name = "_in_ifaddrhashtbl" }, 204#define X_NCHASH 10 205 { .n_name = "_nchash" }, 206#define X_NCHASHTBL 11 207 { .n_name = "_nchashtbl" }, 208#define X_NCVHASH 12 209 { .n_name = "_ncvhash" }, 210#define X_NCVHASHTBL 13 211 { .n_name = "_ncvhashtbl" }, 212#define X_HASHNL_SIZE 14 /* must be last */ 213 { .n_name = NULL }, 214}; 215 216/* 217 * Namelist for UVM histories 218 */ 219struct nlist histnl[] = 220{ 221 { .n_name = "_uvm_histories" }, 222#define X_UVM_HISTORIES 0 223 { .n_name = NULL }, 224}; 225 226 227#define KILO 1024 228 229struct uvmexp uvmexp, ouvmexp; 230int ndrives; 231 232int winlines = 20; 233 234kvm_t *kd; 235 236#define FORKSTAT 1<<0 237#define INTRSTAT 1<<1 238#define MEMSTAT 1<<2 239#define SUMSTAT 1<<3 240#define EVCNTSTAT 1<<4 241#define VMSTAT 1<<5 242#define HISTLIST 1<<6 243#define HISTDUMP 1<<7 244#define HASHSTAT 1<<8 245#define HASHLIST 1<<9 246#define VMTOTAL 1<<10 247#define POOLCACHESTAT 1<<11 248 249/* 250 * Print single word. `ovflow' is number of characters didn't fit 251 * on the last word. `fmt' is a format string to print this word. 252 * It must contain asterisk for field width. `width' is a width 253 * occupied by this word. `fixed' is a number of constant chars in 254 * `fmt'. `val' is a value to be printed using format string `fmt'. 255 */ 256#define PRWORD(ovflw, fmt, width, fixed, val) do { \ 257 (ovflw) += printf((fmt), \ 258 (width) - (fixed) - (ovflw) > 0 ? \ 259 (width) - (fixed) - (ovflw) : 0, \ 260 (val)) - (width); \ 261 if ((ovflw) < 0) \ 262 (ovflw) = 0; \ 263} while (/* CONSTCOND */0) 264 265void cpustats(int *); 266void deref_kptr(const void *, void *, size_t, const char *); 267void drvstats(int *); 268void doevcnt(int verbose); 269void dohashstat(int, int, const char *); 270void dointr(int verbose); 271void domem(void); 272void dopool(int, int); 273void dopoolcache(void); 274void dosum(void); 275void dovmstat(struct timespec *, int); 276void print_total_hdr(void); 277void dovmtotal(struct timespec *, int); 278void kread(struct nlist *, int, void *, size_t); 279int kreadc(struct nlist *, int, void *, size_t); 280void needhdr(int); 281long getuptime(void); 282void printhdr(void); 283long pct(long, long); 284void usage(void); 285void doforkst(void); 286 287void hist_traverse(int, const char *); 288void hist_dodump(struct uvm_history *); 289 290int main(int, char **); 291char **choosedrives(char **); 292 293/* Namelist and memory file names. */ 294char *nlistf, *memf; 295 296/* allow old usage [vmstat 1] */ 297#define BACKWARD_COMPATIBILITY 298 299int 300main(int argc, char *argv[]) 301{ 302 int c, todo, verbose, wide; 303 struct timespec interval; 304 int reps; 305 char errbuf[_POSIX2_LINE_MAX]; 306 gid_t egid = getegid(); 307 const char *histname, *hashname; 308 309 histname = hashname = NULL; 310 (void)setegid(getgid()); 311 memf = nlistf = NULL; 312 reps = todo = verbose = wide = 0; 313 interval.tv_sec = 0; 314 interval.tv_nsec = 0; 315 while ((c = getopt(argc, argv, "Cc:efh:HilLM:mN:stu:UvWw:")) != -1) { 316 switch (c) { 317 case 'c': 318 reps = atoi(optarg); 319 break; 320 case 'C': 321 todo |= POOLCACHESTAT; 322 break; 323 case 'e': 324 todo |= EVCNTSTAT; 325 break; 326 case 'f': 327 todo |= FORKSTAT; 328 break; 329 case 'h': 330 hashname = optarg; 331 /* FALLTHROUGH */ 332 case 'H': 333 todo |= HASHSTAT; 334 break; 335 case 'i': 336 todo |= INTRSTAT; 337 break; 338 case 'l': 339 todo |= HISTLIST; 340 break; 341 case 'L': 342 todo |= HASHLIST; 343 break; 344 case 'M': 345 memf = optarg; 346 break; 347 case 'm': 348 todo |= MEMSTAT; 349 break; 350 case 'N': 351 nlistf = optarg; 352 break; 353 case 's': 354 todo |= SUMSTAT; 355 break; 356 case 't': 357 todo |= VMTOTAL; 358 break; 359 case 'u': 360 histname = optarg; 361 /* FALLTHROUGH */ 362 case 'U': 363 todo |= HISTDUMP; 364 break; 365 case 'v': 366 verbose++; 367 break; 368 case 'W': 369 wide++; 370 break; 371 case 'w': 372 interval.tv_sec = atol(optarg); 373 break; 374 case '?': 375 default: 376 usage(); 377 } 378 } 379 argc -= optind; 380 argv += optind; 381 382 if (todo == 0) 383 todo = VMSTAT; 384 385 /* 386 * Discard setgid privileges. If not the running kernel, we toss 387 * them away totally so that bad guys can't print interesting stuff 388 * from kernel memory, otherwise switch back to kmem for the 389 * duration of the kvm_openfiles() call. 390 */ 391 if (nlistf != NULL || memf != NULL) 392 (void)setgid(getgid()); 393 else 394 (void)setegid(egid); 395 396 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf); 397 if (kd == NULL) 398 errx(1, "kvm_openfiles: %s", errbuf); 399 400 if (nlistf == NULL && memf == NULL) 401 (void)setgid(getgid()); 402 403 if ((c = kvm_nlist(kd, namelist)) != 0) { 404 int doexit = 0; 405 if (c == -1) 406 errx(1, "kvm_nlist: %s %s", "namelist", kvm_geterr(kd)); 407 for (c = 0; c < sizeof(namelist) / sizeof(namelist[0])-1; c++) 408 if (namelist[c].n_type == 0 && 409 c != X_TIME_SECOND && 410 c != X_TIME) { 411 if (doexit++ == 0) 412 (void)fprintf(stderr, "vmstat: undefined symbols:"); 413 (void)fprintf(stderr, " %s", 414 namelist[c].n_name); 415 } 416 if (doexit) { 417 (void)fputc('\n', stderr); 418 exit(1); 419 } 420 } 421 if (todo & INTRSTAT) 422 (void) kvm_nlist(kd, intrnl); 423 if ((c = kvm_nlist(kd, hashnl)) == -1 || c == X_HASHNL_SIZE) 424 errx(1, "kvm_nlist: %s %s", "hashnl", kvm_geterr(kd)); 425 if (kvm_nlist(kd, histnl) == -1) 426 errx(1, "kvm_nlist: %s %s", "histnl", kvm_geterr(kd)); 427 428 if (todo & VMSTAT) { 429 struct winsize winsize; 430 431 (void)drvinit(0);/* Initialize disk stats, no disks selected. */ 432 433 (void)setgid(getgid()); /* don't need privs anymore */ 434 435 argv = choosedrives(argv); /* Select disks. */ 436 winsize.ws_row = 0; 437 (void)ioctl(STDOUT_FILENO, TIOCGWINSZ, &winsize); 438 if (winsize.ws_row > 0) 439 winlines = winsize.ws_row; 440 441 } 442 443#ifdef BACKWARD_COMPATIBILITY 444 if (*argv) { 445 interval.tv_sec = atol(*argv); 446 if (*++argv) 447 reps = atoi(*argv); 448 } 449#endif 450 451 if (interval.tv_sec) { 452 if (!reps) 453 reps = -1; 454 } else if (reps) 455 interval.tv_sec = 1; 456 457 458 /* 459 * Statistics dumping is incompatible with the default 460 * VMSTAT/dovmstat() output. So perform the interval/reps handling 461 * for it here. 462 */ 463 if ((todo & (VMSTAT|VMTOTAL)) == 0) { 464 for (;;) { 465 if (todo & (HISTLIST|HISTDUMP)) { 466 if ((todo & (HISTLIST|HISTDUMP)) == 467 (HISTLIST|HISTDUMP)) 468 errx(1, "you may list or dump," 469 " but not both!"); 470 hist_traverse(todo, histname); 471 (void)putchar('\n'); 472 } 473 if (todo & FORKSTAT) { 474 doforkst(); 475 (void)putchar('\n'); 476 } 477 if (todo & MEMSTAT) { 478 domem(); 479 dopool(verbose, wide); 480 (void)putchar('\n'); 481 } 482 if (todo & POOLCACHESTAT) { 483 dopoolcache(); 484 (void)putchar('\n'); 485 } 486 if (todo & SUMSTAT) { 487 dosum(); 488 (void)putchar('\n'); 489 } 490 if (todo & INTRSTAT) { 491 dointr(verbose); 492 (void)putchar('\n'); 493 } 494 if (todo & EVCNTSTAT) { 495 doevcnt(verbose); 496 (void)putchar('\n'); 497 } 498 if (todo & (HASHLIST|HASHSTAT)) { 499 if ((todo & (HASHLIST|HASHSTAT)) == 500 (HASHLIST|HASHSTAT)) 501 errx(1, "you may list or display," 502 " but not both!"); 503 dohashstat(verbose, todo, hashname); 504 (void)putchar('\n'); 505 } 506 507 if (reps >= 0 && --reps <=0) 508 break; 509 (void)nanosleep(&interval, NULL); 510 } 511 } else { 512 if ((todo & (VMSTAT|VMTOTAL)) == (VMSTAT|VMTOTAL)) { 513 errx(1, "you may not both do vmstat and vmtotal"); 514 } 515 if (todo & VMSTAT) 516 dovmstat(&interval, reps); 517 if (todo & VMTOTAL) 518 dovmtotal(&interval, reps); 519 } 520 return 0; 521} 522 523char ** 524choosedrives(char **argv) 525{ 526 int i; 527 528 /* 529 * Choose drives to be displayed. Priority goes to (in order) drives 530 * supplied as arguments, default drives. If everything isn't filled 531 * in and there are drives not taken care of, display the first few 532 * that fit. 533 */ 534#define BACKWARD_COMPATIBILITY 535 for (ndrives = 0; *argv; ++argv) { 536#ifdef BACKWARD_COMPATIBILITY 537 if (isdigit((unsigned char)**argv)) 538 break; 539#endif 540 for (i = 0; i < ndrive; i++) { 541 if (strcmp(dr_name[i], *argv)) 542 continue; 543 drv_select[i] = 1; 544 ++ndrives; 545 break; 546 } 547 } 548 for (i = 0; i < ndrive && ndrives < 2; i++) { 549 if (drv_select[i]) 550 continue; 551 drv_select[i] = 1; 552 ++ndrives; 553 } 554 555 return (argv); 556} 557 558long 559getuptime(void) 560{ 561 static struct timeval boottime; 562 struct timeval now; 563 time_t uptime, nowsec; 564 565 if (boottime.tv_sec == 0) 566 kread(namelist, X_BOOTTIME, &boottime, sizeof(boottime)); 567 if (kreadc(namelist, X_TIME_SECOND, &nowsec, sizeof(nowsec))) { 568 /* 569 * XXX this assignment dance can be removed once timeval tv_sec 570 * is SUS mandated time_t 571 */ 572 now.tv_sec = nowsec; 573 now.tv_usec = 0; 574 } else { 575 kread(namelist, X_TIME, &now, sizeof(now)); 576 } 577 uptime = now.tv_sec - boottime.tv_sec; 578 if (uptime <= 0 || uptime > 60*60*24*365*10) 579 errx(1, "time makes no sense; namelist must be wrong."); 580 return (uptime); 581} 582 583int hz, hdrcnt; 584 585void 586print_total_hdr() 587{ 588 589 (void)printf("procs memory\n"); 590 (void)printf("ru dw pw sl sw"); 591 (void)printf(" total-v active-v active-r"); 592 (void)printf(" vm-sh avm-sh rm-sh arm-sh free\n"); 593 hdrcnt = winlines - 2; 594} 595 596void 597dovmtotal(struct timespec *interval, int reps) 598{ 599 struct vmtotal total; 600 int mib[2]; 601 size_t size; 602 603 (void)signal(SIGCONT, needhdr); 604 605 for (hdrcnt = 1;;) { 606 if (!--hdrcnt) 607 print_total_hdr(); 608 if (memf != NULL) { 609 (void)printf( 610 "Unable to get vmtotals from crash dump.\n"); 611 (void)memset(&total, 0, sizeof(total)); 612 } else { 613 size = sizeof(total); 614 mib[0] = CTL_VM; 615 mib[1] = VM_METER; 616 if (sysctl(mib, 2, &total, &size, NULL, 0) < 0) { 617 (void)printf("Can't get vmtotals: %s\n", 618 strerror(errno)); 619 (void)memset(&total, 0, sizeof(total)); 620 } 621 } 622 (void)printf("%2d ", total.t_rq); 623 (void)printf("%2d ", total.t_dw); 624 (void)printf("%2d ", total.t_pw); 625 (void)printf("%2d ", total.t_sl); 626 (void)printf("%2d ", total.t_sw); 627 628 (void)printf("%9d ", total.t_vm); 629 (void)printf("%9d ", total.t_avm); 630 (void)printf("%9d ", total.t_arm); 631 (void)printf("%5d ", total.t_vmshr); 632 (void)printf("%6d ", total.t_avmshr); 633 (void)printf("%5d ", total.t_rmshr); 634 (void)printf("%6d ", total.t_armshr); 635 (void)printf("%5d", total.t_free); 636 637 (void)putchar('\n'); 638 639 (void)fflush(stdout); 640 if (reps >= 0 && --reps <= 0) 641 break; 642 643 (void)nanosleep(interval, NULL); 644 } 645} 646 647void 648dovmstat(struct timespec *interval, int reps) 649{ 650 struct vmtotal total; 651 time_t uptime, halfuptime; 652 int mib[2]; 653 size_t size; 654 int pagesize = getpagesize(); 655 int ovflw; 656 657 uptime = getuptime(); 658 halfuptime = uptime / 2; 659 (void)signal(SIGCONT, needhdr); 660 661 if (namelist[X_STATHZ].n_type != 0 && namelist[X_STATHZ].n_value != 0) 662 kread(namelist, X_STATHZ, &hz, sizeof(hz)); 663 if (!hz) 664 kread(namelist, X_HZ, &hz, sizeof(hz)); 665 666 for (hdrcnt = 1;;) { 667 if (!--hdrcnt) 668 printhdr(); 669 /* Read new disk statistics */ 670 cpureadstats(); 671 drvreadstats(); 672 tkreadstats(); 673 kread(namelist, X_UVMEXP, &uvmexp, sizeof(uvmexp)); 674 if (memf != NULL) { 675 /* 676 * XXX Can't do this if we're reading a crash 677 * XXX dump because they're lazily-calculated. 678 */ 679 (void)printf( 680 "Unable to get vmtotals from crash dump.\n"); 681 (void)memset(&total, 0, sizeof(total)); 682 } else { 683 size = sizeof(total); 684 mib[0] = CTL_VM; 685 mib[1] = VM_METER; 686 if (sysctl(mib, 2, &total, &size, NULL, 0) < 0) { 687 (void)printf("Can't get vmtotals: %s\n", 688 strerror(errno)); 689 (void)memset(&total, 0, sizeof(total)); 690 } 691 } 692 ovflw = 0; 693 PRWORD(ovflw, " %*d", 2, 1, total.t_rq - 1); 694 PRWORD(ovflw, " %*d", 2, 1, total.t_dw + total.t_pw); 695 PRWORD(ovflw, " %*d", 2, 1, total.t_sw); 696#define pgtok(a) (long)((a) * ((uint32_t)pagesize >> 10)) 697#define rate(x) (u_long)(((x) + halfuptime) / uptime) /* round */ 698 PRWORD(ovflw, " %*ld", 7, 1, pgtok(total.t_avm)); 699 PRWORD(ovflw, " %*ld", 7, 1, pgtok(total.t_free)); 700 PRWORD(ovflw, " %*ld", 5, 1, 701 rate(uvmexp.faults - ouvmexp.faults)); 702 PRWORD(ovflw, " %*ld", 4, 1, 703 rate(uvmexp.pdreact - ouvmexp.pdreact)); 704 PRWORD(ovflw, " %*ld", 4, 1, 705 rate(uvmexp.pageins - ouvmexp.pageins)); 706 PRWORD(ovflw, " %*ld", 5, 1, 707 rate(uvmexp.pgswapout - ouvmexp.pgswapout)); 708 PRWORD(ovflw, " %*ld", 5, 1, 709 rate(uvmexp.pdfreed - ouvmexp.pdfreed)); 710 PRWORD(ovflw, " %*ld", 6, 2, 711 rate(uvmexp.pdscans - ouvmexp.pdscans)); 712 drvstats(&ovflw); 713 PRWORD(ovflw, " %*ld", 5, 1, 714 rate(uvmexp.intrs - ouvmexp.intrs)); 715 PRWORD(ovflw, " %*ld", 5, 1, 716 rate(uvmexp.syscalls - ouvmexp.syscalls)); 717 PRWORD(ovflw, " %*ld", 4, 1, 718 rate(uvmexp.swtch - ouvmexp.swtch)); 719 cpustats(&ovflw); 720 (void)putchar('\n'); 721 (void)fflush(stdout); 722 if (reps >= 0 && --reps <= 0) 723 break; 724 ouvmexp = uvmexp; 725 uptime = interval->tv_sec; 726 /* 727 * We round upward to avoid losing low-frequency events 728 * (i.e., >= 1 per interval but < 1 per second). 729 */ 730 halfuptime = uptime == 1 ? 0 : (uptime + 1) / 2; 731 (void)nanosleep(interval, NULL); 732 } 733} 734 735void 736printhdr(void) 737{ 738 int i; 739 740 (void)printf(" procs memory page%*s", 23, ""); 741 if (ndrives > 0) 742 (void)printf("%s %*sfaults cpu\n", 743 ((ndrives > 1) ? "disks" : "disk"), 744 ((ndrives > 1) ? ndrives * 3 - 4 : 0), ""); 745 else 746 (void)printf("%*s faults cpu\n", 747 ndrives * 3, ""); 748 749 (void)printf(" r b w avm fre flt re pi po fr sr "); 750 for (i = 0; i < ndrive; i++) 751 if (drv_select[i]) 752 (void)printf("%c%c ", dr_name[i][0], 753 dr_name[i][strlen(dr_name[i]) - 1]); 754 (void)printf(" in sy cs us sy id\n"); 755 hdrcnt = winlines - 2; 756} 757 758/* 759 * Force a header to be prepended to the next output. 760 */ 761void 762/*ARGSUSED*/ 763needhdr(int dummy) 764{ 765 766 hdrcnt = 1; 767} 768 769long 770pct(long top, long bot) 771{ 772 long ans; 773 774 if (bot == 0) 775 return (0); 776 ans = (long)((quad_t)top * 100 / bot); 777 return (ans); 778} 779 780#define PCT(top, bot) (int)pct((long)(top), (long)(bot)) 781 782void 783dosum(void) 784{ 785 struct nchstats nchstats; 786 u_long nchtotal; 787 788 kread(namelist, X_UVMEXP, &uvmexp, sizeof(uvmexp)); 789 790 (void)printf("%9u bytes per page\n", uvmexp.pagesize); 791 792 (void)printf("%9u page color%s\n", 793 uvmexp.ncolors, uvmexp.ncolors == 1 ? "" : "s"); 794 795 (void)printf("%9u pages managed\n", uvmexp.npages); 796 (void)printf("%9u pages free\n", uvmexp.free); 797 (void)printf("%9u pages paging\n", uvmexp.paging); 798 (void)printf("%9u pages wired\n", uvmexp.wired); 799 (void)printf("%9u zero pages\n", uvmexp.zeropages); 800 (void)printf("%9u reserve pagedaemon pages\n", 801 uvmexp.reserve_pagedaemon); 802 (void)printf("%9u reserve kernel pages\n", uvmexp.reserve_kernel); 803 (void)printf("%9u anonymous pages\n", uvmexp.anonpages); 804 (void)printf("%9u cached file pages\n", uvmexp.filepages); 805 (void)printf("%9u cached executable pages\n", uvmexp.execpages); 806 807 (void)printf("%9u minimum free pages\n", uvmexp.freemin); 808 (void)printf("%9u target free pages\n", uvmexp.freetarg); 809 (void)printf("%9u maximum wired pages\n", uvmexp.wiredmax); 810 811 (void)printf("%9u swap devices\n", uvmexp.nswapdev); 812 (void)printf("%9u swap pages\n", uvmexp.swpages); 813 (void)printf("%9u swap pages in use\n", uvmexp.swpginuse); 814 (void)printf("%9u swap allocations\n", uvmexp.nswget); 815 816 (void)printf("%9u total faults taken\n", uvmexp.faults); 817 (void)printf("%9u traps\n", uvmexp.traps); 818 (void)printf("%9u device interrupts\n", uvmexp.intrs); 819 (void)printf("%9u CPU context switches\n", uvmexp.swtch); 820 (void)printf("%9u software interrupts\n", uvmexp.softs); 821 (void)printf("%9u system calls\n", uvmexp.syscalls); 822 (void)printf("%9u pagein requests\n", uvmexp.pageins); 823 (void)printf("%9u pageout requests\n", uvmexp.pdpageouts); 824 (void)printf("%9u swap ins\n", uvmexp.swapins); 825 (void)printf("%9u swap outs\n", uvmexp.swapouts); 826 (void)printf("%9u pages swapped in\n", uvmexp.pgswapin); 827 (void)printf("%9u pages swapped out\n", uvmexp.pgswapout); 828 (void)printf("%9u forks total\n", uvmexp.forks); 829 (void)printf("%9u forks blocked parent\n", uvmexp.forks_ppwait); 830 (void)printf("%9u forks shared address space with parent\n", 831 uvmexp.forks_sharevm); 832 (void)printf("%9u pagealloc zero wanted and avail\n", 833 uvmexp.pga_zerohit); 834 (void)printf("%9u pagealloc zero wanted and not avail\n", 835 uvmexp.pga_zeromiss); 836 (void)printf("%9u aborts of idle page zeroing\n", 837 uvmexp.zeroaborts); 838 (void)printf("%9u pagealloc desired color avail\n", 839 uvmexp.colorhit); 840 (void)printf("%9u pagealloc desired color not avail\n", 841 uvmexp.colormiss); 842 (void)printf("%9u pagealloc local cpu avail\n", 843 uvmexp.cpuhit); 844 (void)printf("%9u pagealloc local cpu not avail\n", 845 uvmexp.cpumiss); 846 847 (void)printf("%9u faults with no memory\n", uvmexp.fltnoram); 848 (void)printf("%9u faults with no anons\n", uvmexp.fltnoanon); 849 (void)printf("%9u faults had to wait on pages\n", uvmexp.fltpgwait); 850 (void)printf("%9u faults found released page\n", uvmexp.fltpgrele); 851 (void)printf("%9u faults relock (%u ok)\n", uvmexp.fltrelck, 852 uvmexp.fltrelckok); 853 (void)printf("%9u anon page faults\n", uvmexp.fltanget); 854 (void)printf("%9u anon retry faults\n", uvmexp.fltanretry); 855 (void)printf("%9u amap copy faults\n", uvmexp.fltamcopy); 856 (void)printf("%9u neighbour anon page faults\n", uvmexp.fltnamap); 857 (void)printf("%9u neighbour object page faults\n", uvmexp.fltnomap); 858 (void)printf("%9u locked pager get faults\n", uvmexp.fltlget); 859 (void)printf("%9u unlocked pager get faults\n", uvmexp.fltget); 860 (void)printf("%9u anon faults\n", uvmexp.flt_anon); 861 (void)printf("%9u anon copy on write faults\n", uvmexp.flt_acow); 862 (void)printf("%9u object faults\n", uvmexp.flt_obj); 863 (void)printf("%9u promote copy faults\n", uvmexp.flt_prcopy); 864 (void)printf("%9u promote zero fill faults\n", uvmexp.flt_przero); 865 866 (void)printf("%9u times daemon wokeup\n",uvmexp.pdwoke); 867 (void)printf("%9u revolutions of the clock hand\n", uvmexp.pdrevs); 868 (void)printf("%9u times daemon attempted swapout\n", uvmexp.pdswout); 869 (void)printf("%9u pages freed by daemon\n", uvmexp.pdfreed); 870 (void)printf("%9u pages scanned by daemon\n", uvmexp.pdscans); 871 (void)printf("%9u anonymous pages scanned by daemon\n", 872 uvmexp.pdanscan); 873 (void)printf("%9u object pages scanned by daemon\n", uvmexp.pdobscan); 874 (void)printf("%9u pages reactivated\n", uvmexp.pdreact); 875 (void)printf("%9u pages found busy by daemon\n", uvmexp.pdbusy); 876 (void)printf("%9u total pending pageouts\n", uvmexp.pdpending); 877 (void)printf("%9u pages deactivated\n", uvmexp.pddeact); 878 879 kread(namelist, X_NCHSTATS, &nchstats, sizeof(nchstats)); 880 nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits + 881 nchstats.ncs_badhits + nchstats.ncs_falsehits + 882 nchstats.ncs_miss + nchstats.ncs_long; 883 (void)printf("%9lu total name lookups\n", nchtotal); 884 (void)printf("%9lu good hits\n", nchstats.ncs_goodhits); 885 (void)printf("%9lu negative hits\n", nchstats.ncs_neghits); 886 (void)printf("%9lu bad hits\n", nchstats.ncs_badhits); 887 (void)printf("%9lu false hits\n", nchstats.ncs_falsehits); 888 (void)printf("%9lu miss\n", nchstats.ncs_miss); 889 (void)printf("%9lu too long\n", nchstats.ncs_long); 890 (void)printf("%9lu pass2 hits\n", nchstats.ncs_pass2); 891 (void)printf("%9lu 2passes\n", nchstats.ncs_2passes); 892 (void)printf( 893 "%9s cache hits (%d%% pos + %d%% neg) system %d%% per-process\n", 894 "", PCT(nchstats.ncs_goodhits, nchtotal), 895 PCT(nchstats.ncs_neghits, nchtotal), 896 PCT(nchstats.ncs_pass2, nchtotal)); 897 (void)printf("%9s deletions %d%%, falsehits %d%%, toolong %d%%\n", "", 898 PCT(nchstats.ncs_badhits, nchtotal), 899 PCT(nchstats.ncs_falsehits, nchtotal), 900 PCT(nchstats.ncs_long, nchtotal)); 901} 902 903void 904doforkst(void) 905{ 906 907 kread(namelist, X_UVMEXP, &uvmexp, sizeof(uvmexp)); 908 909 (void)printf("%u forks total\n", uvmexp.forks); 910 (void)printf("%u forks blocked parent\n", uvmexp.forks_ppwait); 911 (void)printf("%u forks shared address space with parent\n", 912 uvmexp.forks_sharevm); 913} 914 915void 916drvstats(int *ovflwp) 917{ 918 int dn; 919 double etime; 920 int ovflw = *ovflwp; 921 922 /* Calculate disk stat deltas. */ 923 cpuswap(); 924 drvswap(); 925 tkswap(); 926 etime = cur.cp_etime; 927 928 for (dn = 0; dn < ndrive; ++dn) { 929 if (!drv_select[dn]) 930 continue; 931 PRWORD(ovflw, " %*.0f", 3, 1, 932 (cur.rxfer[dn] + cur.wxfer[dn]) / etime); 933 } 934 *ovflwp = ovflw; 935} 936 937void 938cpustats(int *ovflwp) 939{ 940 int state; 941 double pcnt, total; 942 double stat_us, stat_sy, stat_id; 943 int ovflw = *ovflwp; 944 945 total = 0; 946 for (state = 0; state < CPUSTATES; ++state) 947 total += cur.cp_time[state]; 948 if (total) 949 pcnt = 100 / total; 950 else 951 pcnt = 0; 952 stat_us = (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * pcnt; 953 stat_sy = (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * pcnt; 954 stat_id = cur.cp_time[CP_IDLE] * pcnt; 955 PRWORD(ovflw, " %*.0f", ((stat_sy >= 100) ? 2 : 3), 1, stat_us); 956 PRWORD(ovflw, " %*.0f", ((stat_us >= 100 || stat_id >= 100) ? 2 : 3), 1, 957 stat_sy); 958 PRWORD(ovflw, " %*.0f", 3, 1, stat_id); 959 *ovflwp = ovflw; 960} 961 962void 963dointr(int verbose) 964{ 965 unsigned long *intrcnt, *ointrcnt; 966 unsigned long long inttotal, uptime; 967 int nintr, inamlen; 968 char *intrname, *ointrname; 969 struct evcntlist allevents; 970 struct evcnt evcnt, *evptr; 971 char evgroup[EVCNT_STRING_MAX], evname[EVCNT_STRING_MAX]; 972 973 inttotal = 0; 974 uptime = getuptime(); 975 (void)printf("%-34s %16s %8s\n", "interrupt", "total", "rate"); 976 nintr = intrnl[X_EINTRCNT].n_value - intrnl[X_INTRCNT].n_value; 977 inamlen = intrnl[X_EINTRNAMES].n_value - intrnl[X_INTRNAMES].n_value; 978 if (nintr != 0 && inamlen != 0) { 979 ointrcnt = intrcnt = malloc((size_t)nintr); 980 ointrname = intrname = malloc((size_t)inamlen); 981 if (intrcnt == NULL || intrname == NULL) 982 errx(1, "%s", ""); 983 kread(intrnl, X_INTRCNT, intrcnt, (size_t)nintr); 984 kread(intrnl, X_INTRNAMES, intrname, (size_t)inamlen); 985 nintr /= sizeof(long); 986 while (--nintr >= 0) { 987 if (*intrcnt || verbose) 988 (void)printf("%-34s %16llu %8llu\n", intrname, 989 (unsigned long long)*intrcnt, 990 (unsigned long long) 991 (*intrcnt / uptime)); 992 intrname += strlen(intrname) + 1; 993 inttotal += *intrcnt++; 994 } 995 free(ointrcnt); 996 free(ointrname); 997 } 998 999 kread(namelist, X_ALLEVENTS, &allevents, sizeof allevents); 1000 evptr = TAILQ_FIRST(&allevents); 1001 while (evptr) { 1002 deref_kptr(evptr, &evcnt, sizeof(evcnt), "event chain trashed"); 1003 evptr = TAILQ_NEXT(&evcnt, ev_list); 1004 if (evcnt.ev_type != EVCNT_TYPE_INTR) 1005 continue; 1006 1007 if (evcnt.ev_count == 0 && !verbose) 1008 continue; 1009 1010 deref_kptr(evcnt.ev_group, evgroup, 1011 (size_t)evcnt.ev_grouplen + 1, "event chain trashed"); 1012 deref_kptr(evcnt.ev_name, evname, 1013 (size_t)evcnt.ev_namelen + 1, "event chain trashed"); 1014 1015 (void)printf("%s %s%*s %16llu %8llu\n", evgroup, evname, 1016 34 - (evcnt.ev_grouplen + 1 + evcnt.ev_namelen), "", 1017 (unsigned long long)evcnt.ev_count, 1018 (unsigned long long)(evcnt.ev_count / uptime)); 1019 1020 inttotal += evcnt.ev_count++; 1021 } 1022 (void)printf("%-34s %16llu %8llu\n", "Total", inttotal, 1023 (unsigned long long)(inttotal / uptime)); 1024} 1025 1026void 1027doevcnt(int verbose) 1028{ 1029 static const char * evtypes [] = { "misc", "intr", "trap" }; 1030 unsigned long long uptime; 1031 struct evcntlist allevents; 1032 struct evcnt evcnt, *evptr; 1033 char evgroup[EVCNT_STRING_MAX], evname[EVCNT_STRING_MAX]; 1034 1035 /* XXX should print type! */ 1036 1037 uptime = getuptime(); 1038 (void)printf("%-34s %16s %8s %s\n", "event", "total", "rate", "type"); 1039 kread(namelist, X_ALLEVENTS, &allevents, sizeof allevents); 1040 evptr = TAILQ_FIRST(&allevents); 1041 while (evptr) { 1042 deref_kptr(evptr, &evcnt, sizeof(evcnt), "event chain trashed"); 1043 1044 evptr = TAILQ_NEXT(&evcnt, ev_list); 1045 if (evcnt.ev_count == 0 && !verbose) 1046 continue; 1047 1048 deref_kptr(evcnt.ev_group, evgroup, 1049 (size_t)evcnt.ev_grouplen + 1, "event chain trashed"); 1050 deref_kptr(evcnt.ev_name, evname, 1051 (size_t)evcnt.ev_namelen + 1, "event chain trashed"); 1052 1053 (void)printf("%s %s%*s %16llu %8llu %s\n", evgroup, evname, 1054 34 - (evcnt.ev_grouplen + 1 + evcnt.ev_namelen), "", 1055 (unsigned long long)evcnt.ev_count, 1056 (unsigned long long)(evcnt.ev_count / uptime), 1057 (evcnt.ev_type < sizeof(evtypes)/sizeof(evtypes[0]) ? 1058 evtypes[evcnt.ev_type] : "?")); 1059 } 1060} 1061 1062static char memname[64]; 1063 1064void 1065domem(void) 1066{ 1067 struct kmembuckets *kp; 1068 struct malloc_type ks, *ksp; 1069 int i, j; 1070 int len, size, first; 1071 long totuse = 0, totfree = 0, totreq = 0; 1072 struct kmembuckets buckets[MINBUCKET + 16]; 1073 1074 kread(namelist, X_KMEMBUCKETS, buckets, sizeof(buckets)); 1075 for (first = 1, i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16; 1076 i++, kp++) { 1077 if (kp->kb_calls == 0) 1078 continue; 1079 if (first) { 1080 (void)printf("Memory statistics by bucket size\n"); 1081 (void)printf( 1082 " Size In Use Free Requests HighWater Couldfree\n"); 1083 first = 0; 1084 } 1085 size = 1 << i; 1086 (void)printf("%8d %8ld %6ld %10ld %7ld %10ld\n", size, 1087 kp->kb_total - kp->kb_totalfree, 1088 kp->kb_totalfree, kp->kb_calls, 1089 kp->kb_highwat, kp->kb_couldfree); 1090 totfree += size * kp->kb_totalfree; 1091 } 1092 1093 /* 1094 * If kmem statistics are not being gathered by the kernel, 1095 * first will still be 1. 1096 */ 1097 if (first) { 1098 warnx("Kmem statistics are not being gathered by the kernel."); 1099 return; 1100 } 1101 1102 (void)printf("\nMemory usage type by bucket size\n"); 1103 (void)printf(" Size Type(s)\n"); 1104 kp = &buckets[MINBUCKET]; 1105 for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) { 1106 if (kp->kb_calls == 0) 1107 continue; 1108 first = 1; 1109 len = 8; 1110 for (kread(namelist, X_KMEMSTAT, &ksp, sizeof(ksp)); 1111 ksp != NULL; ksp = ks.ks_next) { 1112 deref_kptr(ksp, &ks, sizeof(ks), "malloc type"); 1113 if (ks.ks_calls == 0) 1114 continue; 1115 if ((ks.ks_size & j) == 0) 1116 continue; 1117 deref_kptr(ks.ks_shortdesc, memname, 1118 sizeof(memname), "malloc type name"); 1119 len += 2 + strlen(memname); 1120 if (first) 1121 (void)printf("%8d %s", j, memname); 1122 else 1123 (void)printf(","); 1124 if (len >= 80) { 1125 (void)printf("\n\t "); 1126 len = 10 + strlen(memname); 1127 } 1128 if (!first) 1129 (void)printf(" %s", memname); 1130 first = 0; 1131 } 1132 (void)putchar('\n'); 1133 } 1134 1135 (void)printf( 1136 "\nMemory statistics by type Type Kern\n"); 1137 (void)printf( 1138" Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)\n"); 1139 for (kread(namelist, X_KMEMSTAT, &ksp, sizeof(ksp)); 1140 ksp != NULL; ksp = ks.ks_next) { 1141 deref_kptr(ksp, &ks, sizeof(ks), "malloc type"); 1142 if (ks.ks_calls == 0) 1143 continue; 1144 deref_kptr(ks.ks_shortdesc, memname, 1145 sizeof(memname), "malloc type name"); 1146 (void)printf("%14s%6ld%6ldK%7ldK%6ldK%10ld%5u%6u", 1147 memname, 1148 ks.ks_inuse, howmany(ks.ks_memuse, KILO), 1149 howmany(ks.ks_maxused, KILO), 1150 howmany(ks.ks_limit, KILO), ks.ks_calls, 1151 ks.ks_limblocks, ks.ks_mapblocks); 1152 first = 1; 1153 for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) { 1154 if ((ks.ks_size & j) == 0) 1155 continue; 1156 if (first) 1157 (void)printf(" %d", j); 1158 else 1159 (void)printf(",%d", j); 1160 first = 0; 1161 } 1162 (void)printf("\n"); 1163 totuse += ks.ks_memuse; 1164 totreq += ks.ks_calls; 1165 } 1166 (void)printf("\nMemory totals: In Use Free Requests\n"); 1167 (void)printf(" %7ldK %6ldK %8ld\n\n", 1168 howmany(totuse, KILO), howmany(totfree, KILO), totreq); 1169} 1170 1171void 1172dopool(int verbose, int wide) 1173{ 1174 int first, ovflw; 1175 void *addr; 1176 long total, inuse, this_total, this_inuse; 1177 TAILQ_HEAD(,pool) pool_head; 1178 struct pool pool, *pp = &pool; 1179 struct pool_allocator pa; 1180 char name[32], maxp[32]; 1181 1182 kread(namelist, X_POOLHEAD, &pool_head, sizeof(pool_head)); 1183 addr = TAILQ_FIRST(&pool_head); 1184 1185 total = inuse = 0; 1186 1187 for (first = 1; addr != NULL; addr = TAILQ_NEXT(pp, pr_poollist) ) { 1188 deref_kptr(addr, pp, sizeof(*pp), "pool chain trashed"); 1189 deref_kptr(pp->pr_alloc, &pa, sizeof(pa), 1190 "pool allocator trashed"); 1191 deref_kptr(pp->pr_wchan, name, sizeof(name), 1192 "pool wait channel trashed"); 1193 name[sizeof(name)-1] = '\0'; 1194 1195 if (first) { 1196 (void)printf("Memory resource pool statistics\n"); 1197 (void)printf( 1198 "%-*s%*s%*s%5s%*s%s%s%*s%*s%6s%s%6s%6s%6s%5s%s%s\n", 1199 wide ? 16 : 11, "Name", 1200 wide ? 6 : 5, "Size", 1201 wide ? 12 : 9, "Requests", 1202 "Fail", 1203 wide ? 12 : 9, "Releases", 1204 wide ? " InUse" : "", 1205 wide ? " Avail" : "", 1206 wide ? 7 : 6, "Pgreq", 1207 wide ? 7 : 6, "Pgrel", 1208 "Npage", 1209 wide ? " PageSz" : "", 1210 "Hiwat", 1211 "Minpg", 1212 "Maxpg", 1213 "Idle", 1214 wide ? " Flags" : "", 1215 wide ? " Util" : ""); 1216 first = 0; 1217 } 1218 if (pp->pr_nget == 0 && !verbose) 1219 continue; 1220 if (pp->pr_maxpages == UINT_MAX) 1221 (void)snprintf(maxp, sizeof(maxp), "inf"); 1222 else 1223 (void)snprintf(maxp, sizeof(maxp), "%u", 1224 pp->pr_maxpages); 1225 ovflw = 0; 1226 PRWORD(ovflw, "%-*s", wide ? 16 : 11, 0, name); 1227 PRWORD(ovflw, " %*u", wide ? 6 : 5, 1, pp->pr_size); 1228 PRWORD(ovflw, " %*lu", wide ? 12 : 9, 1, pp->pr_nget); 1229 PRWORD(ovflw, " %*lu", 5, 1, pp->pr_nfail); 1230 PRWORD(ovflw, " %*lu", wide ? 12 : 9, 1, pp->pr_nput); 1231 if (wide) 1232 PRWORD(ovflw, " %*u", 7, 1, pp->pr_nout); 1233 if (wide) 1234 PRWORD(ovflw, " %*u", 6, 1, pp->pr_nitems); 1235 PRWORD(ovflw, " %*lu", wide ? 7 : 6, 1, pp->pr_npagealloc); 1236 PRWORD(ovflw, " %*lu", wide ? 7 : 6, 1, pp->pr_npagefree); 1237 PRWORD(ovflw, " %*u", 6, 1, pp->pr_npages); 1238 if (wide) 1239 PRWORD(ovflw, " %*u", 7, 1, pa.pa_pagesz); 1240 PRWORD(ovflw, " %*u", 6, 1, pp->pr_hiwat); 1241 PRWORD(ovflw, " %*u", 6, 1, pp->pr_minpages); 1242 PRWORD(ovflw, " %*s", 6, 1, maxp); 1243 PRWORD(ovflw, " %*lu", 5, 1, pp->pr_nidle); 1244 if (wide) 1245 PRWORD(ovflw, " 0x%0*x", 4, 1, 1246 pp->pr_flags | pp->pr_roflags); 1247 1248 this_inuse = pp->pr_nout * pp->pr_size; 1249 this_total = pp->pr_npages * pa.pa_pagesz; 1250 if (pp->pr_roflags & PR_RECURSIVE) { 1251 /* 1252 * Don't count in-use memory, since it's part 1253 * of another pool and will be accounted for 1254 * there. 1255 */ 1256 total += (this_total - this_inuse); 1257 } else { 1258 inuse += this_inuse; 1259 total += this_total; 1260 } 1261 if (wide) { 1262 if (this_total == 0) 1263 (void)printf(" ---"); 1264 else 1265 (void)printf(" %5.1f%%", 1266 (100.0 * this_inuse) / this_total); 1267 } 1268 (void)printf("\n"); 1269 } 1270 1271 inuse /= KILO; 1272 total /= KILO; 1273 (void)printf( 1274 "\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n", 1275 inuse, total, (100.0 * inuse) / total); 1276} 1277 1278void 1279dopoolcache(void) 1280{ 1281 struct pool_cache pool_cache, *pc = &pool_cache; 1282 pool_cache_cpu_t cache_cpu, *cc = &cache_cpu; 1283 TAILQ_HEAD(,pool) pool_head; 1284 struct pool pool, *pp = &pool; 1285 char name[32]; 1286 uint64_t cpuhit, cpumiss, tot; 1287 void *addr; 1288 int first, ovflw, i; 1289 double p; 1290 1291 kread(namelist, X_POOLHEAD, &pool_head, sizeof(pool_head)); 1292 addr = TAILQ_FIRST(&pool_head); 1293 1294 for (first = 1; addr != NULL; addr = TAILQ_NEXT(pp, pr_poollist) ) { 1295 deref_kptr(addr, pp, sizeof(*pp), "pool chain trashed"); 1296 if (pp->pr_cache == NULL) 1297 continue; 1298 deref_kptr(pp->pr_wchan, name, sizeof(name), 1299 "pool wait channel trashed"); 1300 deref_kptr(pp->pr_cache, pc, sizeof(*pc), "pool cache trashed"); 1301 name[sizeof(name)-1] = '\0'; 1302 1303 cpuhit = 0; 1304 cpumiss = 0; 1305 for (i = 0; i < sizeof(pc->pc_cpus) / sizeof(pc->pc_cpus[0]); 1306 i++) { 1307 if ((addr = pc->pc_cpus[i]) == NULL) 1308 continue; 1309 deref_kptr(addr, cc, sizeof(*cc), 1310 "pool cache cpu trashed"); 1311 cpuhit += cc->cc_hits; 1312 cpumiss += cc->cc_misses; 1313 } 1314 1315 if (first) { 1316 (void)printf("Pool cache statistics.\n"); 1317 (void)printf("%-*s%*s%*s%*s%*s%*s%*s%*s%*s%*s\n", 1318 12, "Name", 1319 6, "Spin", 1320 6, "GrpSz", 1321 5, "Full", 1322 5, "Emty", 1323 10, "PoolLayer", 1324 11, "CacheLayer", 1325 6, "Hit%", 1326 12, "CpuLayer", 1327 6, "Hit%" 1328 ); 1329 first = 0; 1330 } 1331 1332 ovflw = 0; 1333 PRWORD(ovflw, "%-*s", 13, 1, name); 1334 PRWORD(ovflw, " %*llu", 6, 1, (long long)pc->pc_contended); 1335 PRWORD(ovflw, " %*u", 6, 1, pc->pc_pcgsize); 1336 PRWORD(ovflw, " %*u", 5, 1, pc->pc_nfull); 1337 PRWORD(ovflw, " %*u", 5, 1, pc->pc_nempty); 1338 PRWORD(ovflw, " %*llu", 10, 1, (long long)pc->pc_misses); 1339 1340 tot = pc->pc_hits + pc->pc_misses; 1341 p = pc->pc_hits * 100.0 / (tot); 1342 PRWORD(ovflw, " %*llu", 11, 1, (long long)tot); 1343 PRWORD(ovflw, " %*.1f", 6, 1, p); 1344 1345 tot = cpuhit + cpumiss; 1346 p = cpuhit * 100.0 / (tot); 1347 PRWORD(ovflw, " %*llu", 12, 1, (long long)tot); 1348 PRWORD(ovflw, " %*.1f", 6, 1, p); 1349 printf("\n"); 1350 } 1351} 1352 1353enum hashtype { /* from <sys/systm.h> */ 1354 HASH_LIST, 1355 HASH_TAILQ 1356}; 1357 1358struct uidinfo { /* XXX: no kernel header file */ 1359 LIST_ENTRY(uidinfo) ui_hash; 1360 uid_t ui_uid; 1361 long ui_proccnt; 1362}; 1363 1364struct kernel_hash { 1365 const char * description; /* description */ 1366 int hashsize; /* nlist index for hash size */ 1367 int hashtbl; /* nlist index for hash table */ 1368 enum hashtype type; /* type of hash table */ 1369 size_t offset; /* offset of {LIST,TAILQ}_NEXT */ 1370} khashes[] = 1371{ 1372 { 1373 "buffer hash", 1374 X_BUFHASH, X_BUFHASHTBL, 1375 HASH_LIST, offsetof(struct buf, b_hash) 1376 }, { 1377 "inode cache (ihash)", 1378 X_IHASH, X_IHASHTBL, 1379 HASH_LIST, offsetof(struct inode, i_hash) 1380 }, { 1381 "ipv4 address -> interface hash", 1382 X_IFADDRHASH, X_IFADDRHASHTBL, 1383 HASH_LIST, offsetof(struct in_ifaddr, ia_hash), 1384 }, { 1385 "name cache hash", 1386 X_NCHASH, X_NCHASHTBL, 1387 HASH_LIST, offsetof(struct namecache, nc_hash), 1388 }, { 1389 "name cache directory hash", 1390 X_NCVHASH, X_NCVHASHTBL, 1391 HASH_LIST, offsetof(struct namecache, nc_vhash), 1392 }, { 1393 "nfs client node cache", 1394 X_NFSNODE, X_NFSNODETBL, 1395 HASH_LIST, offsetof(struct nfsnode, n_hash) 1396 }, { 1397 "user info (uid -> used processes) hash", 1398 X_UIHASH, X_UIHASHTBL, 1399 HASH_LIST, offsetof(struct uidinfo, ui_hash), 1400 }, { 1401 NULL, -1, -1, 0, 0, 1402 } 1403}; 1404 1405void 1406dohashstat(int verbose, int todo, const char *hashname) 1407{ 1408 LIST_HEAD(, generic) *hashtbl_list; 1409 TAILQ_HEAD(, generic) *hashtbl_tailq; 1410 struct kernel_hash *curhash; 1411 void *hashaddr, *hashbuf, *nhashbuf, *nextaddr; 1412 size_t elemsize, hashbufsize, thissize; 1413 u_long hashsize; 1414 int i, used, items, chain, maxchain; 1415 1416 hashbuf = NULL; 1417 hashbufsize = 0; 1418 1419 if (todo & HASHLIST) { 1420 (void)printf("Supported hashes:\n"); 1421 for (curhash = khashes; curhash->description; curhash++) { 1422 if (hashnl[curhash->hashsize].n_value == 0 || 1423 hashnl[curhash->hashtbl].n_value == 0) 1424 continue; 1425 (void)printf("\t%-16s%s\n", 1426 hashnl[curhash->hashsize].n_name + 1, 1427 curhash->description); 1428 } 1429 return; 1430 } 1431 1432 if (hashname != NULL) { 1433 for (curhash = khashes; curhash->description; curhash++) { 1434 if (strcmp(hashnl[curhash->hashsize].n_name + 1, 1435 hashname) == 0 && 1436 hashnl[curhash->hashsize].n_value != 0 && 1437 hashnl[curhash->hashtbl].n_value != 0) 1438 break; 1439 } 1440 if (curhash->description == NULL) { 1441 warnx("%s: no such hash", hashname); 1442 return; 1443 } 1444 } 1445 1446 (void)printf( 1447 "%-16s %8s %8s %8s %8s %8s %8s\n" 1448 "%-16s %8s %8s %8s %8s %8s %8s\n", 1449 "", "total", "used", "util", "num", "average", "maximum", 1450 "hash table", "buckets", "buckets", "%", "items", "chain", 1451 "chain"); 1452 1453 for (curhash = khashes; curhash->description; curhash++) { 1454 if (hashnl[curhash->hashsize].n_value == 0 || 1455 hashnl[curhash->hashtbl].n_value == 0) 1456 continue; 1457 if (hashname != NULL && 1458 strcmp(hashnl[curhash->hashsize].n_name + 1, hashname)) 1459 continue; 1460 elemsize = curhash->type == HASH_LIST ? 1461 sizeof(*hashtbl_list) : sizeof(*hashtbl_tailq); 1462 deref_kptr((void *)hashnl[curhash->hashsize].n_value, 1463 &hashsize, sizeof(hashsize), 1464 hashnl[curhash->hashsize].n_name); 1465 hashsize++; 1466 deref_kptr((void *)hashnl[curhash->hashtbl].n_value, 1467 &hashaddr, sizeof(hashaddr), 1468 hashnl[curhash->hashtbl].n_name); 1469 if (verbose) 1470 (void)printf( 1471 "%s %lu, %s %p, offset %ld, elemsize %llu\n", 1472 hashnl[curhash->hashsize].n_name + 1, hashsize, 1473 hashnl[curhash->hashtbl].n_name + 1, hashaddr, 1474 (long)curhash->offset, 1475 (unsigned long long)elemsize); 1476 thissize = hashsize * elemsize; 1477 if (hashbuf == NULL || thissize > hashbufsize) { 1478 if ((nhashbuf = realloc(hashbuf, thissize)) == NULL) 1479 errx(1, "malloc hashbuf %llu", 1480 (unsigned long long)hashbufsize); 1481 hashbuf = nhashbuf; 1482 hashbufsize = thissize; 1483 } 1484 deref_kptr(hashaddr, hashbuf, thissize, 1485 hashnl[curhash->hashtbl].n_name); 1486 used = 0; 1487 items = maxchain = 0; 1488 if (curhash->type == HASH_LIST) { 1489 hashtbl_list = hashbuf; 1490 hashtbl_tailq = NULL; 1491 } else { 1492 hashtbl_list = NULL; 1493 hashtbl_tailq = hashbuf; 1494 } 1495 for (i = 0; i < hashsize; i++) { 1496 if (curhash->type == HASH_LIST) 1497 nextaddr = LIST_FIRST(&hashtbl_list[i]); 1498 else 1499 nextaddr = TAILQ_FIRST(&hashtbl_tailq[i]); 1500 if (nextaddr == NULL) 1501 continue; 1502 if (verbose) 1503 (void)printf("%5d: %p\n", i, nextaddr); 1504 used++; 1505 chain = 0; 1506 do { 1507 chain++; 1508 deref_kptr((char *)nextaddr + curhash->offset, 1509 &nextaddr, sizeof(void *), 1510 "hash chain corrupted"); 1511 if (verbose > 1) 1512 (void)printf("got nextaddr as %p\n", 1513 nextaddr); 1514 } while (nextaddr != NULL); 1515 items += chain; 1516 if (verbose && chain > 1) 1517 (void)printf("\tchain = %d\n", chain); 1518 if (chain > maxchain) 1519 maxchain = chain; 1520 } 1521 (void)printf("%-16s %8ld %8d %8.2f %8d %8.2f %8d\n", 1522 hashnl[curhash->hashsize].n_name + 1, 1523 hashsize, used, used * 100.0 / hashsize, 1524 items, used ? (double)items / used : 0.0, maxchain); 1525 } 1526} 1527 1528/* 1529 * kreadc like kread but returns 1 if sucessful, 0 otherwise 1530 */ 1531int 1532kreadc(struct nlist *nl, int nlx, void *addr, size_t size) 1533{ 1534 const char *sym; 1535 1536 sym = nl[nlx].n_name; 1537 if (*sym == '_') 1538 ++sym; 1539 if (nl[nlx].n_type == 0 || nl[nlx].n_value == 0) 1540 return 0; 1541 deref_kptr((void *)nl[nlx].n_value, addr, size, sym); 1542 return 1; 1543} 1544 1545/* 1546 * kread reads something from the kernel, given its nlist index in namelist[]. 1547 */ 1548void 1549kread(struct nlist *nl, int nlx, void *addr, size_t size) 1550{ 1551 const char *sym; 1552 1553 sym = nl[nlx].n_name; 1554 if (*sym == '_') 1555 ++sym; 1556 if (nl[nlx].n_type == 0 || nl[nlx].n_value == 0) 1557 errx(1, "symbol %s not defined", sym); 1558 deref_kptr((void *)nl[nlx].n_value, addr, size, sym); 1559} 1560 1561/* 1562 * Dereference the kernel pointer `kptr' and fill in the local copy 1563 * pointed to by `ptr'. The storage space must be pre-allocated, 1564 * and the size of the copy passed in `len'. 1565 */ 1566void 1567deref_kptr(const void *kptr, void *ptr, size_t len, const char *msg) 1568{ 1569 1570 if (*msg == '_') 1571 msg++; 1572 if (kvm_read(kd, (u_long)kptr, (char *)ptr, len) != len) 1573 errx(1, "kptr %lx: %s: %s", (u_long)kptr, msg, kvm_geterr(kd)); 1574} 1575 1576/* 1577 * Traverse the UVM history buffers, performing the requested action. 1578 * 1579 * Note, we assume that if we're not listing, we're dumping. 1580 */ 1581void 1582hist_traverse(int todo, const char *histname) 1583{ 1584 struct uvm_history_head histhead; 1585 struct uvm_history hist, *histkva; 1586 char *name = NULL; 1587 size_t namelen = 0; 1588 1589 if (histnl[0].n_value == 0) { 1590 warnx("UVM history is not compiled into the kernel."); 1591 return; 1592 } 1593 1594 deref_kptr((void *)histnl[X_UVM_HISTORIES].n_value, &histhead, 1595 sizeof(histhead), histnl[X_UVM_HISTORIES].n_name); 1596 1597 if (histhead.lh_first == NULL) { 1598 warnx("No active UVM history logs."); 1599 return; 1600 } 1601 1602 if (todo & HISTLIST) 1603 (void)printf("Active UVM histories:"); 1604 1605 for (histkva = LIST_FIRST(&histhead); histkva != NULL; 1606 histkva = LIST_NEXT(&hist, list)) { 1607 deref_kptr(histkva, &hist, sizeof(hist), "histkva"); 1608 if (name == NULL || hist.namelen > namelen) { 1609 if (name != NULL) 1610 free(name); 1611 namelen = hist.namelen; 1612 if ((name = malloc(namelen + 1)) == NULL) 1613 err(1, "malloc history name"); 1614 } 1615 1616 deref_kptr(hist.name, name, namelen, "history name"); 1617 name[namelen] = '\0'; 1618 if (todo & HISTLIST) 1619 (void)printf(" %s", name); 1620 else { 1621 /* 1622 * If we're dumping all histories, do it, else 1623 * check to see if this is the one we want. 1624 */ 1625 if (histname == NULL || strcmp(histname, name) == 0) { 1626 if (histname == NULL) 1627 (void)printf( 1628 "\nUVM history `%s':\n", name); 1629 hist_dodump(&hist); 1630 } 1631 } 1632 } 1633 1634 if (todo & HISTLIST) 1635 (void)putchar('\n'); 1636 1637 if (name != NULL) 1638 free(name); 1639} 1640 1641/* 1642 * Actually dump the history buffer at the specified KVA. 1643 */ 1644void 1645hist_dodump(struct uvm_history *histp) 1646{ 1647 struct uvm_history_ent *histents, *e; 1648 size_t histsize; 1649 char *fmt = NULL, *fn = NULL; 1650 size_t fmtlen = 0, fnlen = 0; 1651 int i; 1652 1653 histsize = sizeof(struct uvm_history_ent) * histp->n; 1654 1655 if ((histents = malloc(histsize)) == NULL) 1656 err(1, "malloc history entries"); 1657 1658 (void)memset(histents, 0, histsize); 1659 1660 deref_kptr(histp->e, histents, histsize, "history entries"); 1661 i = histp->f; 1662 do { 1663 e = &histents[i]; 1664 if (e->fmt != NULL) { 1665 if (fmt == NULL || e->fmtlen > fmtlen) { 1666 if (fmt != NULL) 1667 free(fmt); 1668 fmtlen = e->fmtlen; 1669 if ((fmt = malloc(fmtlen + 1)) == NULL) 1670 err(1, "malloc printf format"); 1671 } 1672 if (fn == NULL || e->fnlen > fnlen) { 1673 if (fn != NULL) 1674 free(fn); 1675 fnlen = e->fnlen; 1676 if ((fn = malloc(fnlen + 1)) == NULL) 1677 err(1, "malloc function name"); 1678 } 1679 1680 deref_kptr(e->fmt, fmt, fmtlen, "printf format"); 1681 fmt[fmtlen] = '\0'; 1682 1683 deref_kptr(e->fn, fn, fnlen, "function name"); 1684 fn[fnlen] = '\0'; 1685 1686 (void)printf("%06ld.%06ld ", (long int)e->tv.tv_sec, 1687 (long int)e->tv.tv_usec); 1688 (void)printf("%s#%ld: ", fn, e->call); 1689 (void)printf(fmt, e->v[0], e->v[1], e->v[2], e->v[3]); 1690 (void)putchar('\n'); 1691 } 1692 i = (i + 1) % histp->n; 1693 } while (i != histp->f); 1694 1695 free(histents); 1696 if (fmt != NULL) 1697 free(fmt); 1698 if (fn != NULL) 1699 free(fn); 1700} 1701 1702void 1703usage(void) 1704{ 1705 1706 (void)fprintf(stderr, 1707 "usage: %s [-CefHiLlmstUvW] [-c count] [-h hashname] [-M core] [-N system]\n" 1708 "\t\t[-u histname] [-w wait] [disks]\n", getprogname()); 1709 exit(1); 1710} 1711