vmstat.c revision 1.162
1 /* $NetBSD: vmstat.c,v 1.162 2008/08/20 18:51:49 he Exp $ */ 2 3 /*- 4 * Copyright (c) 1998, 2000, 2001, 2007 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation by: 8 * - Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * - Simon Burge and Luke Mewburn of Wasabi Systems, Inc. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 /* 35 * Copyright (c) 1980, 1986, 1991, 1993 36 * The Regents of the University of California. All rights reserved. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 1. Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * 2. Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in the 45 * documentation and/or other materials provided with the distribution. 46 * 3. Neither the name of the University nor the names of its contributors 47 * may be used to endorse or promote products derived from this software 48 * without specific prior written permission. 49 * 50 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 51 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 53 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 54 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 55 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 56 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 57 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 58 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 59 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 60 * SUCH DAMAGE. 61 */ 62 63 #include <sys/cdefs.h> 64 #ifndef lint 65 __COPYRIGHT("@(#) Copyright (c) 1980, 1986, 1991, 1993\ 66 The Regents of the University of California. All rights reserved."); 67 #endif /* not lint */ 68 69 #ifndef lint 70 #if 0 71 static char sccsid[] = "@(#)vmstat.c 8.2 (Berkeley) 3/1/95"; 72 #else 73 __RCSID("$NetBSD: vmstat.c,v 1.162 2008/08/20 18:51:49 he 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 */ 133 struct 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 */ 164 struct 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 */ 182 struct 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 */ 219 struct 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 228 229 struct uvmexp uvmexp, ouvmexp; 230 int ndrives; 231 232 int winlines = 20; 233 234 kvm_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) 264 265 void cpustats(int *); 266 void deref_kptr(const void *, void *, size_t, const char *); 267 void drvstats(int *); 268 void doevcnt(int verbose); 269 void dohashstat(int, int, const char *); 270 void dointr(int verbose); 271 void domem(void); 272 void dopool(int, int); 273 void dopoolcache(void); 274 void dosum(void); 275 void dovmstat(struct timespec *, int); 276 void print_total_hdr(void); 277 void dovmtotal(struct timespec *, int); 278 void kread(struct nlist *, int, void *, size_t); 279 int kreadc(struct nlist *, int, void *, size_t); 280 void needhdr(int); 281 long getuptime(void); 282 void printhdr(void); 283 long pct(long, long); 284 void usage(void); 285 void doforkst(void); 286 287 void hist_traverse(int, const char *); 288 void hist_dodump(struct uvm_history *); 289 290 int main(int, char **); 291 char **choosedrives(char **); 292 293 /* Namelist and memory file names. */ 294 char *nlistf, *memf; 295 296 /* allow old usage [vmstat 1] */ 297 #define BACKWARD_COMPATIBILITY 298 299 int 300 main(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 } 522 523 char ** 524 choosedrives(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 } 557 558 long 559 getuptime(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 } 582 583 int hz, hdrcnt; 584 585 void 586 print_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 } 595 596 void 597 dovmtotal(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 } 646 647 void 648 dovmstat(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 } 734 735 void 736 printhdr(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 */ 761 void 762 /*ARGSUSED*/ 763 needhdr(int dummy) 764 { 765 766 hdrcnt = 1; 767 } 768 769 long 770 pct(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)) 781 782 void 783 dosum(void) 784 { 785 struct nchstats nchstats; 786 u_long nchtotal; 787 int mib[2]; 788 struct uvmexp_sysctl uvmexp2; 789 size_t ssize; 790 int active_kernel; 791 792 /* 793 * The "active" and "inactive" variables 794 * are now estimated by the kernel and sadly 795 * can not easily be dug out of a crash dump. 796 */ 797 ssize = sizeof(uvmexp2); 798 memset(&uvmexp2, 0, ssize); 799 active_kernel = (memf == NULL); 800 if (active_kernel) { 801 /* only on active kernel */ 802 mib[0] = CTL_VM; 803 mib[1] = VM_UVMEXP2; 804 if (sysctl(mib, 2, &uvmexp2, &ssize, NULL, 0) < 0) 805 fprintf(stderr, "%s: sysctl vm.uvmexp2 failed: %s", 806 getprogname(), strerror(errno)); 807 } 808 809 kread(namelist, X_UVMEXP, &uvmexp, sizeof(uvmexp)); 810 811 (void)printf("%9u bytes per page\n", uvmexp.pagesize); 812 813 (void)printf("%9u page color%s\n", 814 uvmexp.ncolors, uvmexp.ncolors == 1 ? "" : "s"); 815 816 (void)printf("%9u pages managed\n", uvmexp.npages); 817 (void)printf("%9u pages free\n", uvmexp.free); 818 if (active_kernel) { 819 (void)printf("%9" PRIu64 " pages active\n", uvmexp2.active); 820 (void)printf("%9" PRIu64 " pages inactive\n", uvmexp2.inactive); 821 } 822 (void)printf("%9u pages paging\n", uvmexp.paging); 823 (void)printf("%9u pages wired\n", uvmexp.wired); 824 (void)printf("%9u zero pages\n", uvmexp.zeropages); 825 (void)printf("%9u reserve pagedaemon pages\n", 826 uvmexp.reserve_pagedaemon); 827 (void)printf("%9u reserve kernel pages\n", uvmexp.reserve_kernel); 828 (void)printf("%9u anonymous pages\n", uvmexp.anonpages); 829 (void)printf("%9u cached file pages\n", uvmexp.filepages); 830 (void)printf("%9u cached executable pages\n", uvmexp.execpages); 831 832 (void)printf("%9u minimum free pages\n", uvmexp.freemin); 833 (void)printf("%9u target free pages\n", uvmexp.freetarg); 834 (void)printf("%9u maximum wired pages\n", uvmexp.wiredmax); 835 836 (void)printf("%9u swap devices\n", uvmexp.nswapdev); 837 (void)printf("%9u swap pages\n", uvmexp.swpages); 838 (void)printf("%9u swap pages in use\n", uvmexp.swpginuse); 839 (void)printf("%9u swap allocations\n", uvmexp.nswget); 840 841 (void)printf("%9u total faults taken\n", uvmexp.faults); 842 (void)printf("%9u traps\n", uvmexp.traps); 843 (void)printf("%9u device interrupts\n", uvmexp.intrs); 844 (void)printf("%9u CPU context switches\n", uvmexp.swtch); 845 (void)printf("%9u software interrupts\n", uvmexp.softs); 846 (void)printf("%9u system calls\n", uvmexp.syscalls); 847 (void)printf("%9u pagein requests\n", uvmexp.pageins); 848 (void)printf("%9u pageout requests\n", uvmexp.pdpageouts); 849 (void)printf("%9u swap ins\n", uvmexp.swapins); 850 (void)printf("%9u swap outs\n", uvmexp.swapouts); 851 (void)printf("%9u pages swapped in\n", uvmexp.pgswapin); 852 (void)printf("%9u pages swapped out\n", uvmexp.pgswapout); 853 (void)printf("%9u forks total\n", uvmexp.forks); 854 (void)printf("%9u forks blocked parent\n", uvmexp.forks_ppwait); 855 (void)printf("%9u forks shared address space with parent\n", 856 uvmexp.forks_sharevm); 857 (void)printf("%9u pagealloc zero wanted and avail\n", 858 uvmexp.pga_zerohit); 859 (void)printf("%9u pagealloc zero wanted and not avail\n", 860 uvmexp.pga_zeromiss); 861 (void)printf("%9u aborts of idle page zeroing\n", 862 uvmexp.zeroaborts); 863 (void)printf("%9u pagealloc desired color avail\n", 864 uvmexp.colorhit); 865 (void)printf("%9u pagealloc desired color not avail\n", 866 uvmexp.colormiss); 867 (void)printf("%9u pagealloc local cpu avail\n", 868 uvmexp.cpuhit); 869 (void)printf("%9u pagealloc local cpu not avail\n", 870 uvmexp.cpumiss); 871 872 (void)printf("%9u faults with no memory\n", uvmexp.fltnoram); 873 (void)printf("%9u faults with no anons\n", uvmexp.fltnoanon); 874 (void)printf("%9u faults had to wait on pages\n", uvmexp.fltpgwait); 875 (void)printf("%9u faults found released page\n", uvmexp.fltpgrele); 876 (void)printf("%9u faults relock (%u ok)\n", uvmexp.fltrelck, 877 uvmexp.fltrelckok); 878 (void)printf("%9u anon page faults\n", uvmexp.fltanget); 879 (void)printf("%9u anon retry faults\n", uvmexp.fltanretry); 880 (void)printf("%9u amap copy faults\n", uvmexp.fltamcopy); 881 (void)printf("%9u neighbour anon page faults\n", uvmexp.fltnamap); 882 (void)printf("%9u neighbour object page faults\n", uvmexp.fltnomap); 883 (void)printf("%9u locked pager get faults\n", uvmexp.fltlget); 884 (void)printf("%9u unlocked pager get faults\n", uvmexp.fltget); 885 (void)printf("%9u anon faults\n", uvmexp.flt_anon); 886 (void)printf("%9u anon copy on write faults\n", uvmexp.flt_acow); 887 (void)printf("%9u object faults\n", uvmexp.flt_obj); 888 (void)printf("%9u promote copy faults\n", uvmexp.flt_prcopy); 889 (void)printf("%9u promote zero fill faults\n", uvmexp.flt_przero); 890 891 (void)printf("%9u times daemon wokeup\n",uvmexp.pdwoke); 892 (void)printf("%9u revolutions of the clock hand\n", uvmexp.pdrevs); 893 (void)printf("%9u times daemon attempted swapout\n", uvmexp.pdswout); 894 (void)printf("%9u pages freed by daemon\n", uvmexp.pdfreed); 895 (void)printf("%9u pages scanned by daemon\n", uvmexp.pdscans); 896 (void)printf("%9u anonymous pages scanned by daemon\n", 897 uvmexp.pdanscan); 898 (void)printf("%9u object pages scanned by daemon\n", uvmexp.pdobscan); 899 (void)printf("%9u pages reactivated\n", uvmexp.pdreact); 900 (void)printf("%9u pages found busy by daemon\n", uvmexp.pdbusy); 901 (void)printf("%9u total pending pageouts\n", uvmexp.pdpending); 902 (void)printf("%9u pages deactivated\n", uvmexp.pddeact); 903 904 kread(namelist, X_NCHSTATS, &nchstats, sizeof(nchstats)); 905 nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits + 906 nchstats.ncs_badhits + nchstats.ncs_falsehits + 907 nchstats.ncs_miss + nchstats.ncs_long; 908 (void)printf("%9lu total name lookups\n", nchtotal); 909 (void)printf("%9lu good hits\n", nchstats.ncs_goodhits); 910 (void)printf("%9lu negative hits\n", nchstats.ncs_neghits); 911 (void)printf("%9lu bad hits\n", nchstats.ncs_badhits); 912 (void)printf("%9lu false hits\n", nchstats.ncs_falsehits); 913 (void)printf("%9lu miss\n", nchstats.ncs_miss); 914 (void)printf("%9lu too long\n", nchstats.ncs_long); 915 (void)printf("%9lu pass2 hits\n", nchstats.ncs_pass2); 916 (void)printf("%9lu 2passes\n", nchstats.ncs_2passes); 917 (void)printf( 918 "%9s cache hits (%d%% pos + %d%% neg) system %d%% per-process\n", 919 "", PCT(nchstats.ncs_goodhits, nchtotal), 920 PCT(nchstats.ncs_neghits, nchtotal), 921 PCT(nchstats.ncs_pass2, nchtotal)); 922 (void)printf("%9s deletions %d%%, falsehits %d%%, toolong %d%%\n", "", 923 PCT(nchstats.ncs_badhits, nchtotal), 924 PCT(nchstats.ncs_falsehits, nchtotal), 925 PCT(nchstats.ncs_long, nchtotal)); 926 } 927 928 void 929 doforkst(void) 930 { 931 932 kread(namelist, X_UVMEXP, &uvmexp, sizeof(uvmexp)); 933 934 (void)printf("%u forks total\n", uvmexp.forks); 935 (void)printf("%u forks blocked parent\n", uvmexp.forks_ppwait); 936 (void)printf("%u forks shared address space with parent\n", 937 uvmexp.forks_sharevm); 938 } 939 940 void 941 drvstats(int *ovflwp) 942 { 943 int dn; 944 double etime; 945 int ovflw = *ovflwp; 946 947 /* Calculate disk stat deltas. */ 948 cpuswap(); 949 drvswap(); 950 tkswap(); 951 etime = cur.cp_etime; 952 953 for (dn = 0; dn < ndrive; ++dn) { 954 if (!drv_select[dn]) 955 continue; 956 PRWORD(ovflw, " %*.0f", 3, 1, 957 (cur.rxfer[dn] + cur.wxfer[dn]) / etime); 958 } 959 *ovflwp = ovflw; 960 } 961 962 void 963 cpustats(int *ovflwp) 964 { 965 int state; 966 double pcnt, total; 967 double stat_us, stat_sy, stat_id; 968 int ovflw = *ovflwp; 969 970 total = 0; 971 for (state = 0; state < CPUSTATES; ++state) 972 total += cur.cp_time[state]; 973 if (total) 974 pcnt = 100 / total; 975 else 976 pcnt = 0; 977 stat_us = (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * pcnt; 978 stat_sy = (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * pcnt; 979 stat_id = cur.cp_time[CP_IDLE] * pcnt; 980 PRWORD(ovflw, " %*.0f", ((stat_sy >= 100) ? 2 : 3), 1, stat_us); 981 PRWORD(ovflw, " %*.0f", ((stat_us >= 100 || stat_id >= 100) ? 2 : 3), 1, 982 stat_sy); 983 PRWORD(ovflw, " %*.0f", 3, 1, stat_id); 984 *ovflwp = ovflw; 985 } 986 987 void 988 dointr(int verbose) 989 { 990 unsigned long *intrcnt, *ointrcnt; 991 unsigned long long inttotal, uptime; 992 int nintr, inamlen; 993 char *intrname, *ointrname; 994 struct evcntlist allevents; 995 struct evcnt evcnt, *evptr; 996 char evgroup[EVCNT_STRING_MAX], evname[EVCNT_STRING_MAX]; 997 998 inttotal = 0; 999 uptime = getuptime(); 1000 (void)printf("%-34s %16s %8s\n", "interrupt", "total", "rate"); 1001 nintr = intrnl[X_EINTRCNT].n_value - intrnl[X_INTRCNT].n_value; 1002 inamlen = intrnl[X_EINTRNAMES].n_value - intrnl[X_INTRNAMES].n_value; 1003 if (nintr != 0 && inamlen != 0) { 1004 ointrcnt = intrcnt = malloc((size_t)nintr); 1005 ointrname = intrname = malloc((size_t)inamlen); 1006 if (intrcnt == NULL || intrname == NULL) 1007 errx(1, "%s", ""); 1008 kread(intrnl, X_INTRCNT, intrcnt, (size_t)nintr); 1009 kread(intrnl, X_INTRNAMES, intrname, (size_t)inamlen); 1010 nintr /= sizeof(long); 1011 while (--nintr >= 0) { 1012 if (*intrcnt || verbose) 1013 (void)printf("%-34s %16llu %8llu\n", intrname, 1014 (unsigned long long)*intrcnt, 1015 (unsigned long long) 1016 (*intrcnt / uptime)); 1017 intrname += strlen(intrname) + 1; 1018 inttotal += *intrcnt++; 1019 } 1020 free(ointrcnt); 1021 free(ointrname); 1022 } 1023 1024 kread(namelist, X_ALLEVENTS, &allevents, sizeof allevents); 1025 evptr = TAILQ_FIRST(&allevents); 1026 while (evptr) { 1027 deref_kptr(evptr, &evcnt, sizeof(evcnt), "event chain trashed"); 1028 evptr = TAILQ_NEXT(&evcnt, ev_list); 1029 if (evcnt.ev_type != EVCNT_TYPE_INTR) 1030 continue; 1031 1032 if (evcnt.ev_count == 0 && !verbose) 1033 continue; 1034 1035 deref_kptr(evcnt.ev_group, evgroup, 1036 (size_t)evcnt.ev_grouplen + 1, "event chain trashed"); 1037 deref_kptr(evcnt.ev_name, evname, 1038 (size_t)evcnt.ev_namelen + 1, "event chain trashed"); 1039 1040 (void)printf("%s %s%*s %16llu %8llu\n", evgroup, evname, 1041 34 - (evcnt.ev_grouplen + 1 + evcnt.ev_namelen), "", 1042 (unsigned long long)evcnt.ev_count, 1043 (unsigned long long)(evcnt.ev_count / uptime)); 1044 1045 inttotal += evcnt.ev_count++; 1046 } 1047 (void)printf("%-34s %16llu %8llu\n", "Total", inttotal, 1048 (unsigned long long)(inttotal / uptime)); 1049 } 1050 1051 void 1052 doevcnt(int verbose) 1053 { 1054 static const char * evtypes [] = { "misc", "intr", "trap" }; 1055 unsigned long long uptime; 1056 struct evcntlist allevents; 1057 struct evcnt evcnt, *evptr; 1058 char evgroup[EVCNT_STRING_MAX], evname[EVCNT_STRING_MAX]; 1059 1060 /* XXX should print type! */ 1061 1062 uptime = getuptime(); 1063 (void)printf("%-34s %16s %8s %s\n", "event", "total", "rate", "type"); 1064 kread(namelist, X_ALLEVENTS, &allevents, sizeof allevents); 1065 evptr = TAILQ_FIRST(&allevents); 1066 while (evptr) { 1067 deref_kptr(evptr, &evcnt, sizeof(evcnt), "event chain trashed"); 1068 1069 evptr = TAILQ_NEXT(&evcnt, ev_list); 1070 if (evcnt.ev_count == 0 && !verbose) 1071 continue; 1072 1073 deref_kptr(evcnt.ev_group, evgroup, 1074 (size_t)evcnt.ev_grouplen + 1, "event chain trashed"); 1075 deref_kptr(evcnt.ev_name, evname, 1076 (size_t)evcnt.ev_namelen + 1, "event chain trashed"); 1077 1078 (void)printf("%s %s%*s %16llu %8llu %s\n", evgroup, evname, 1079 34 - (evcnt.ev_grouplen + 1 + evcnt.ev_namelen), "", 1080 (unsigned long long)evcnt.ev_count, 1081 (unsigned long long)(evcnt.ev_count / uptime), 1082 (evcnt.ev_type < sizeof(evtypes)/sizeof(evtypes[0]) ? 1083 evtypes[evcnt.ev_type] : "?")); 1084 } 1085 } 1086 1087 static char memname[64]; 1088 1089 void 1090 domem(void) 1091 { 1092 struct kmembuckets *kp; 1093 struct malloc_type ks, *ksp; 1094 int i, j; 1095 int len, size, first; 1096 long totuse = 0, totfree = 0, totreq = 0; 1097 struct kmembuckets buckets[MINBUCKET + 16]; 1098 1099 kread(namelist, X_KMEMBUCKETS, buckets, sizeof(buckets)); 1100 for (first = 1, i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16; 1101 i++, kp++) { 1102 if (kp->kb_calls == 0) 1103 continue; 1104 if (first) { 1105 (void)printf("Memory statistics by bucket size\n"); 1106 (void)printf( 1107 " Size In Use Free Requests HighWater Couldfree\n"); 1108 first = 0; 1109 } 1110 size = 1 << i; 1111 (void)printf("%8d %8ld %6ld %10ld %7ld %10ld\n", size, 1112 kp->kb_total - kp->kb_totalfree, 1113 kp->kb_totalfree, kp->kb_calls, 1114 kp->kb_highwat, kp->kb_couldfree); 1115 totfree += size * kp->kb_totalfree; 1116 } 1117 1118 /* 1119 * If kmem statistics are not being gathered by the kernel, 1120 * first will still be 1. 1121 */ 1122 if (first) { 1123 warnx("Kmem statistics are not being gathered by the kernel."); 1124 return; 1125 } 1126 1127 (void)printf("\nMemory usage type by bucket size\n"); 1128 (void)printf(" Size Type(s)\n"); 1129 kp = &buckets[MINBUCKET]; 1130 for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) { 1131 if (kp->kb_calls == 0) 1132 continue; 1133 first = 1; 1134 len = 8; 1135 for (kread(namelist, X_KMEMSTAT, &ksp, sizeof(ksp)); 1136 ksp != NULL; ksp = ks.ks_next) { 1137 deref_kptr(ksp, &ks, sizeof(ks), "malloc type"); 1138 if (ks.ks_calls == 0) 1139 continue; 1140 if ((ks.ks_size & j) == 0) 1141 continue; 1142 deref_kptr(ks.ks_shortdesc, memname, 1143 sizeof(memname), "malloc type name"); 1144 len += 2 + strlen(memname); 1145 if (first) 1146 (void)printf("%8d %s", j, memname); 1147 else 1148 (void)printf(","); 1149 if (len >= 80) { 1150 (void)printf("\n\t "); 1151 len = 10 + strlen(memname); 1152 } 1153 if (!first) 1154 (void)printf(" %s", memname); 1155 first = 0; 1156 } 1157 (void)putchar('\n'); 1158 } 1159 1160 (void)printf( 1161 "\nMemory statistics by type Type Kern\n"); 1162 (void)printf( 1163 " Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)\n"); 1164 for (kread(namelist, X_KMEMSTAT, &ksp, sizeof(ksp)); 1165 ksp != NULL; ksp = ks.ks_next) { 1166 deref_kptr(ksp, &ks, sizeof(ks), "malloc type"); 1167 if (ks.ks_calls == 0) 1168 continue; 1169 deref_kptr(ks.ks_shortdesc, memname, 1170 sizeof(memname), "malloc type name"); 1171 (void)printf("%15s %5ld %6ldK %6ldK %6ldK %10ld %5u %5u", 1172 memname, 1173 ks.ks_inuse, howmany(ks.ks_memuse, KILO), 1174 howmany(ks.ks_maxused, KILO), 1175 howmany(ks.ks_limit, KILO), ks.ks_calls, 1176 ks.ks_limblocks, ks.ks_mapblocks); 1177 first = 1; 1178 for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) { 1179 if ((ks.ks_size & j) == 0) 1180 continue; 1181 if (first) 1182 (void)printf(" %d", j); 1183 else 1184 (void)printf(",%d", j); 1185 first = 0; 1186 } 1187 (void)printf("\n"); 1188 totuse += ks.ks_memuse; 1189 totreq += ks.ks_calls; 1190 } 1191 (void)printf("\nMemory totals: In Use Free Requests\n"); 1192 (void)printf(" %7ldK %6ldK %8ld\n\n", 1193 howmany(totuse, KILO), howmany(totfree, KILO), totreq); 1194 } 1195 1196 void 1197 dopool(int verbose, int wide) 1198 { 1199 int first, ovflw; 1200 void *addr; 1201 long total, inuse, this_total, this_inuse; 1202 TAILQ_HEAD(,pool) pool_head; 1203 struct pool pool, *pp = &pool; 1204 struct pool_allocator pa; 1205 char name[32], maxp[32]; 1206 1207 kread(namelist, X_POOLHEAD, &pool_head, sizeof(pool_head)); 1208 addr = TAILQ_FIRST(&pool_head); 1209 1210 total = inuse = 0; 1211 1212 for (first = 1; addr != NULL; addr = TAILQ_NEXT(pp, pr_poollist) ) { 1213 deref_kptr(addr, pp, sizeof(*pp), "pool chain trashed"); 1214 deref_kptr(pp->pr_alloc, &pa, sizeof(pa), 1215 "pool allocator trashed"); 1216 deref_kptr(pp->pr_wchan, name, sizeof(name), 1217 "pool wait channel trashed"); 1218 name[sizeof(name)-1] = '\0'; 1219 1220 if (first) { 1221 (void)printf("Memory resource pool statistics\n"); 1222 (void)printf( 1223 "%-*s%*s%*s%5s%*s%s%s%*s%*s%6s%s%6s%6s%6s%5s%s%s\n", 1224 wide ? 16 : 11, "Name", 1225 wide ? 6 : 5, "Size", 1226 wide ? 12 : 9, "Requests", 1227 "Fail", 1228 wide ? 12 : 9, "Releases", 1229 wide ? " InUse" : "", 1230 wide ? " Avail" : "", 1231 wide ? 7 : 6, "Pgreq", 1232 wide ? 7 : 6, "Pgrel", 1233 "Npage", 1234 wide ? " PageSz" : "", 1235 "Hiwat", 1236 "Minpg", 1237 "Maxpg", 1238 "Idle", 1239 wide ? " Flags" : "", 1240 wide ? " Util" : ""); 1241 first = 0; 1242 } 1243 if (pp->pr_nget == 0 && !verbose) 1244 continue; 1245 if (pp->pr_maxpages == UINT_MAX) 1246 (void)snprintf(maxp, sizeof(maxp), "inf"); 1247 else 1248 (void)snprintf(maxp, sizeof(maxp), "%u", 1249 pp->pr_maxpages); 1250 ovflw = 0; 1251 PRWORD(ovflw, "%-*s", wide ? 16 : 11, 0, name); 1252 PRWORD(ovflw, " %*u", wide ? 6 : 5, 1, pp->pr_size); 1253 PRWORD(ovflw, " %*lu", wide ? 12 : 9, 1, pp->pr_nget); 1254 PRWORD(ovflw, " %*lu", 5, 1, pp->pr_nfail); 1255 PRWORD(ovflw, " %*lu", wide ? 12 : 9, 1, pp->pr_nput); 1256 if (wide) 1257 PRWORD(ovflw, " %*u", 7, 1, pp->pr_nout); 1258 if (wide) 1259 PRWORD(ovflw, " %*u", 6, 1, pp->pr_nitems); 1260 PRWORD(ovflw, " %*lu", wide ? 7 : 6, 1, pp->pr_npagealloc); 1261 PRWORD(ovflw, " %*lu", wide ? 7 : 6, 1, pp->pr_npagefree); 1262 PRWORD(ovflw, " %*u", 6, 1, pp->pr_npages); 1263 if (wide) 1264 PRWORD(ovflw, " %*u", 7, 1, pa.pa_pagesz); 1265 PRWORD(ovflw, " %*u", 6, 1, pp->pr_hiwat); 1266 PRWORD(ovflw, " %*u", 6, 1, pp->pr_minpages); 1267 PRWORD(ovflw, " %*s", 6, 1, maxp); 1268 PRWORD(ovflw, " %*lu", 5, 1, pp->pr_nidle); 1269 if (wide) 1270 PRWORD(ovflw, " 0x%0*x", 4, 1, 1271 pp->pr_flags | pp->pr_roflags); 1272 1273 this_inuse = pp->pr_nout * pp->pr_size; 1274 this_total = pp->pr_npages * pa.pa_pagesz; 1275 if (pp->pr_roflags & PR_RECURSIVE) { 1276 /* 1277 * Don't count in-use memory, since it's part 1278 * of another pool and will be accounted for 1279 * there. 1280 */ 1281 total += (this_total - this_inuse); 1282 } else { 1283 inuse += this_inuse; 1284 total += this_total; 1285 } 1286 if (wide) { 1287 if (this_total == 0) 1288 (void)printf(" ---"); 1289 else 1290 (void)printf(" %5.1f%%", 1291 (100.0 * this_inuse) / this_total); 1292 } 1293 (void)printf("\n"); 1294 } 1295 1296 inuse /= KILO; 1297 total /= KILO; 1298 (void)printf( 1299 "\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n", 1300 inuse, total, (100.0 * inuse) / total); 1301 } 1302 1303 void 1304 dopoolcache(void) 1305 { 1306 struct pool_cache pool_cache, *pc = &pool_cache; 1307 pool_cache_cpu_t cache_cpu, *cc = &cache_cpu; 1308 TAILQ_HEAD(,pool) pool_head; 1309 struct pool pool, *pp = &pool; 1310 char name[32]; 1311 uint64_t cpuhit, cpumiss, tot; 1312 void *addr; 1313 int first, ovflw, i; 1314 double p; 1315 1316 kread(namelist, X_POOLHEAD, &pool_head, sizeof(pool_head)); 1317 addr = TAILQ_FIRST(&pool_head); 1318 1319 for (first = 1; addr != NULL; addr = TAILQ_NEXT(pp, pr_poollist) ) { 1320 deref_kptr(addr, pp, sizeof(*pp), "pool chain trashed"); 1321 if (pp->pr_cache == NULL) 1322 continue; 1323 deref_kptr(pp->pr_wchan, name, sizeof(name), 1324 "pool wait channel trashed"); 1325 deref_kptr(pp->pr_cache, pc, sizeof(*pc), "pool cache trashed"); 1326 name[sizeof(name)-1] = '\0'; 1327 1328 cpuhit = 0; 1329 cpumiss = 0; 1330 for (i = 0; i < sizeof(pc->pc_cpus) / sizeof(pc->pc_cpus[0]); 1331 i++) { 1332 if ((addr = pc->pc_cpus[i]) == NULL) 1333 continue; 1334 deref_kptr(addr, cc, sizeof(*cc), 1335 "pool cache cpu trashed"); 1336 cpuhit += cc->cc_hits; 1337 cpumiss += cc->cc_misses; 1338 } 1339 1340 if (first) { 1341 (void)printf("Pool cache statistics.\n"); 1342 (void)printf("%-*s%*s%*s%*s%*s%*s%*s%*s%*s%*s\n", 1343 12, "Name", 1344 6, "Spin", 1345 6, "GrpSz", 1346 5, "Full", 1347 5, "Emty", 1348 10, "PoolLayer", 1349 11, "CacheLayer", 1350 6, "Hit%", 1351 12, "CpuLayer", 1352 6, "Hit%" 1353 ); 1354 first = 0; 1355 } 1356 1357 ovflw = 0; 1358 PRWORD(ovflw, "%-*s", 13, 1, name); 1359 PRWORD(ovflw, " %*llu", 6, 1, (long long)pc->pc_contended); 1360 PRWORD(ovflw, " %*u", 6, 1, pc->pc_pcgsize); 1361 PRWORD(ovflw, " %*u", 5, 1, pc->pc_nfull); 1362 PRWORD(ovflw, " %*u", 5, 1, pc->pc_nempty); 1363 PRWORD(ovflw, " %*llu", 10, 1, (long long)pc->pc_misses); 1364 1365 tot = pc->pc_hits + pc->pc_misses; 1366 p = pc->pc_hits * 100.0 / (tot); 1367 PRWORD(ovflw, " %*llu", 11, 1, (long long)tot); 1368 PRWORD(ovflw, " %*.1f", 6, 1, p); 1369 1370 tot = cpuhit + cpumiss; 1371 p = cpuhit * 100.0 / (tot); 1372 PRWORD(ovflw, " %*llu", 12, 1, (long long)tot); 1373 PRWORD(ovflw, " %*.1f", 6, 1, p); 1374 printf("\n"); 1375 } 1376 } 1377 1378 enum hashtype { /* from <sys/systm.h> */ 1379 HASH_LIST, 1380 HASH_TAILQ 1381 }; 1382 1383 struct uidinfo { /* XXX: no kernel header file */ 1384 LIST_ENTRY(uidinfo) ui_hash; 1385 uid_t ui_uid; 1386 long ui_proccnt; 1387 }; 1388 1389 struct kernel_hash { 1390 const char * description; /* description */ 1391 int hashsize; /* nlist index for hash size */ 1392 int hashtbl; /* nlist index for hash table */ 1393 enum hashtype type; /* type of hash table */ 1394 size_t offset; /* offset of {LIST,TAILQ}_NEXT */ 1395 } khashes[] = 1396 { 1397 { 1398 "buffer hash", 1399 X_BUFHASH, X_BUFHASHTBL, 1400 HASH_LIST, offsetof(struct buf, b_hash) 1401 }, { 1402 "inode cache (ihash)", 1403 X_IHASH, X_IHASHTBL, 1404 HASH_LIST, offsetof(struct inode, i_hash) 1405 }, { 1406 "ipv4 address -> interface hash", 1407 X_IFADDRHASH, X_IFADDRHASHTBL, 1408 HASH_LIST, offsetof(struct in_ifaddr, ia_hash), 1409 }, { 1410 "name cache hash", 1411 X_NCHASH, X_NCHASHTBL, 1412 HASH_LIST, offsetof(struct namecache, nc_hash), 1413 }, { 1414 "name cache directory hash", 1415 X_NCVHASH, X_NCVHASHTBL, 1416 HASH_LIST, offsetof(struct namecache, nc_vhash), 1417 }, { 1418 "nfs client node cache", 1419 X_NFSNODE, X_NFSNODETBL, 1420 HASH_LIST, offsetof(struct nfsnode, n_hash) 1421 }, { 1422 "user info (uid -> used processes) hash", 1423 X_UIHASH, X_UIHASHTBL, 1424 HASH_LIST, offsetof(struct uidinfo, ui_hash), 1425 }, { 1426 NULL, -1, -1, 0, 0, 1427 } 1428 }; 1429 1430 void 1431 dohashstat(int verbose, int todo, const char *hashname) 1432 { 1433 LIST_HEAD(, generic) *hashtbl_list; 1434 TAILQ_HEAD(, generic) *hashtbl_tailq; 1435 struct kernel_hash *curhash; 1436 void *hashaddr, *hashbuf, *nhashbuf, *nextaddr; 1437 size_t elemsize, hashbufsize, thissize; 1438 u_long hashsize; 1439 int i, used, items, chain, maxchain; 1440 1441 hashbuf = NULL; 1442 hashbufsize = 0; 1443 1444 if (todo & HASHLIST) { 1445 (void)printf("Supported hashes:\n"); 1446 for (curhash = khashes; curhash->description; curhash++) { 1447 if (hashnl[curhash->hashsize].n_value == 0 || 1448 hashnl[curhash->hashtbl].n_value == 0) 1449 continue; 1450 (void)printf("\t%-16s%s\n", 1451 hashnl[curhash->hashsize].n_name + 1, 1452 curhash->description); 1453 } 1454 return; 1455 } 1456 1457 if (hashname != NULL) { 1458 for (curhash = khashes; curhash->description; curhash++) { 1459 if (strcmp(hashnl[curhash->hashsize].n_name + 1, 1460 hashname) == 0 && 1461 hashnl[curhash->hashsize].n_value != 0 && 1462 hashnl[curhash->hashtbl].n_value != 0) 1463 break; 1464 } 1465 if (curhash->description == NULL) { 1466 warnx("%s: no such hash", hashname); 1467 return; 1468 } 1469 } 1470 1471 (void)printf( 1472 "%-16s %8s %8s %8s %8s %8s %8s\n" 1473 "%-16s %8s %8s %8s %8s %8s %8s\n", 1474 "", "total", "used", "util", "num", "average", "maximum", 1475 "hash table", "buckets", "buckets", "%", "items", "chain", 1476 "chain"); 1477 1478 for (curhash = khashes; curhash->description; curhash++) { 1479 if (hashnl[curhash->hashsize].n_value == 0 || 1480 hashnl[curhash->hashtbl].n_value == 0) 1481 continue; 1482 if (hashname != NULL && 1483 strcmp(hashnl[curhash->hashsize].n_name + 1, hashname)) 1484 continue; 1485 elemsize = curhash->type == HASH_LIST ? 1486 sizeof(*hashtbl_list) : sizeof(*hashtbl_tailq); 1487 deref_kptr((void *)hashnl[curhash->hashsize].n_value, 1488 &hashsize, sizeof(hashsize), 1489 hashnl[curhash->hashsize].n_name); 1490 hashsize++; 1491 deref_kptr((void *)hashnl[curhash->hashtbl].n_value, 1492 &hashaddr, sizeof(hashaddr), 1493 hashnl[curhash->hashtbl].n_name); 1494 if (verbose) 1495 (void)printf( 1496 "%s %lu, %s %p, offset %ld, elemsize %llu\n", 1497 hashnl[curhash->hashsize].n_name + 1, hashsize, 1498 hashnl[curhash->hashtbl].n_name + 1, hashaddr, 1499 (long)curhash->offset, 1500 (unsigned long long)elemsize); 1501 thissize = hashsize * elemsize; 1502 if (hashbuf == NULL || thissize > hashbufsize) { 1503 if ((nhashbuf = realloc(hashbuf, thissize)) == NULL) 1504 errx(1, "malloc hashbuf %llu", 1505 (unsigned long long)hashbufsize); 1506 hashbuf = nhashbuf; 1507 hashbufsize = thissize; 1508 } 1509 deref_kptr(hashaddr, hashbuf, thissize, 1510 hashnl[curhash->hashtbl].n_name); 1511 used = 0; 1512 items = maxchain = 0; 1513 if (curhash->type == HASH_LIST) { 1514 hashtbl_list = hashbuf; 1515 hashtbl_tailq = NULL; 1516 } else { 1517 hashtbl_list = NULL; 1518 hashtbl_tailq = hashbuf; 1519 } 1520 for (i = 0; i < hashsize; i++) { 1521 if (curhash->type == HASH_LIST) 1522 nextaddr = LIST_FIRST(&hashtbl_list[i]); 1523 else 1524 nextaddr = TAILQ_FIRST(&hashtbl_tailq[i]); 1525 if (nextaddr == NULL) 1526 continue; 1527 if (verbose) 1528 (void)printf("%5d: %p\n", i, nextaddr); 1529 used++; 1530 chain = 0; 1531 do { 1532 chain++; 1533 deref_kptr((char *)nextaddr + curhash->offset, 1534 &nextaddr, sizeof(void *), 1535 "hash chain corrupted"); 1536 if (verbose > 1) 1537 (void)printf("got nextaddr as %p\n", 1538 nextaddr); 1539 } while (nextaddr != NULL); 1540 items += chain; 1541 if (verbose && chain > 1) 1542 (void)printf("\tchain = %d\n", chain); 1543 if (chain > maxchain) 1544 maxchain = chain; 1545 } 1546 (void)printf("%-16s %8ld %8d %8.2f %8d %8.2f %8d\n", 1547 hashnl[curhash->hashsize].n_name + 1, 1548 hashsize, used, used * 100.0 / hashsize, 1549 items, used ? (double)items / used : 0.0, maxchain); 1550 } 1551 } 1552 1553 /* 1554 * kreadc like kread but returns 1 if sucessful, 0 otherwise 1555 */ 1556 int 1557 kreadc(struct nlist *nl, int nlx, void *addr, size_t size) 1558 { 1559 const char *sym; 1560 1561 sym = nl[nlx].n_name; 1562 if (*sym == '_') 1563 ++sym; 1564 if (nl[nlx].n_type == 0 || nl[nlx].n_value == 0) 1565 return 0; 1566 deref_kptr((void *)nl[nlx].n_value, addr, size, sym); 1567 return 1; 1568 } 1569 1570 /* 1571 * kread reads something from the kernel, given its nlist index in namelist[]. 1572 */ 1573 void 1574 kread(struct nlist *nl, int nlx, void *addr, size_t size) 1575 { 1576 const char *sym; 1577 1578 sym = nl[nlx].n_name; 1579 if (*sym == '_') 1580 ++sym; 1581 if (nl[nlx].n_type == 0 || nl[nlx].n_value == 0) 1582 errx(1, "symbol %s not defined", sym); 1583 deref_kptr((void *)nl[nlx].n_value, addr, size, sym); 1584 } 1585 1586 /* 1587 * Dereference the kernel pointer `kptr' and fill in the local copy 1588 * pointed to by `ptr'. The storage space must be pre-allocated, 1589 * and the size of the copy passed in `len'. 1590 */ 1591 void 1592 deref_kptr(const void *kptr, void *ptr, size_t len, const char *msg) 1593 { 1594 1595 if (*msg == '_') 1596 msg++; 1597 if (kvm_read(kd, (u_long)kptr, (char *)ptr, len) != len) 1598 errx(1, "kptr %lx: %s: %s", (u_long)kptr, msg, kvm_geterr(kd)); 1599 } 1600 1601 /* 1602 * Traverse the UVM history buffers, performing the requested action. 1603 * 1604 * Note, we assume that if we're not listing, we're dumping. 1605 */ 1606 void 1607 hist_traverse(int todo, const char *histname) 1608 { 1609 struct uvm_history_head histhead; 1610 struct uvm_history hist, *histkva; 1611 char *name = NULL; 1612 size_t namelen = 0; 1613 1614 if (histnl[0].n_value == 0) { 1615 warnx("UVM history is not compiled into the kernel."); 1616 return; 1617 } 1618 1619 deref_kptr((void *)histnl[X_UVM_HISTORIES].n_value, &histhead, 1620 sizeof(histhead), histnl[X_UVM_HISTORIES].n_name); 1621 1622 if (histhead.lh_first == NULL) { 1623 warnx("No active UVM history logs."); 1624 return; 1625 } 1626 1627 if (todo & HISTLIST) 1628 (void)printf("Active UVM histories:"); 1629 1630 for (histkva = LIST_FIRST(&histhead); histkva != NULL; 1631 histkva = LIST_NEXT(&hist, list)) { 1632 deref_kptr(histkva, &hist, sizeof(hist), "histkva"); 1633 if (name == NULL || hist.namelen > namelen) { 1634 if (name != NULL) 1635 free(name); 1636 namelen = hist.namelen; 1637 if ((name = malloc(namelen + 1)) == NULL) 1638 err(1, "malloc history name"); 1639 } 1640 1641 deref_kptr(hist.name, name, namelen, "history name"); 1642 name[namelen] = '\0'; 1643 if (todo & HISTLIST) 1644 (void)printf(" %s", name); 1645 else { 1646 /* 1647 * If we're dumping all histories, do it, else 1648 * check to see if this is the one we want. 1649 */ 1650 if (histname == NULL || strcmp(histname, name) == 0) { 1651 if (histname == NULL) 1652 (void)printf( 1653 "\nUVM history `%s':\n", name); 1654 hist_dodump(&hist); 1655 } 1656 } 1657 } 1658 1659 if (todo & HISTLIST) 1660 (void)putchar('\n'); 1661 1662 if (name != NULL) 1663 free(name); 1664 } 1665 1666 /* 1667 * Actually dump the history buffer at the specified KVA. 1668 */ 1669 void 1670 hist_dodump(struct uvm_history *histp) 1671 { 1672 struct uvm_history_ent *histents, *e; 1673 size_t histsize; 1674 char *fmt = NULL, *fn = NULL; 1675 size_t fmtlen = 0, fnlen = 0; 1676 int i; 1677 1678 histsize = sizeof(struct uvm_history_ent) * histp->n; 1679 1680 if ((histents = malloc(histsize)) == NULL) 1681 err(1, "malloc history entries"); 1682 1683 (void)memset(histents, 0, histsize); 1684 1685 deref_kptr(histp->e, histents, histsize, "history entries"); 1686 i = histp->f; 1687 do { 1688 e = &histents[i]; 1689 if (e->fmt != NULL) { 1690 if (fmt == NULL || e->fmtlen > fmtlen) { 1691 if (fmt != NULL) 1692 free(fmt); 1693 fmtlen = e->fmtlen; 1694 if ((fmt = malloc(fmtlen + 1)) == NULL) 1695 err(1, "malloc printf format"); 1696 } 1697 if (fn == NULL || e->fnlen > fnlen) { 1698 if (fn != NULL) 1699 free(fn); 1700 fnlen = e->fnlen; 1701 if ((fn = malloc(fnlen + 1)) == NULL) 1702 err(1, "malloc function name"); 1703 } 1704 1705 deref_kptr(e->fmt, fmt, fmtlen, "printf format"); 1706 fmt[fmtlen] = '\0'; 1707 1708 deref_kptr(e->fn, fn, fnlen, "function name"); 1709 fn[fnlen] = '\0'; 1710 1711 (void)printf("%06ld.%06ld ", (long int)e->tv.tv_sec, 1712 (long int)e->tv.tv_usec); 1713 (void)printf("%s#%ld: ", fn, e->call); 1714 (void)printf(fmt, e->v[0], e->v[1], e->v[2], e->v[3]); 1715 (void)putchar('\n'); 1716 } 1717 i = (i + 1) % histp->n; 1718 } while (i != histp->f); 1719 1720 free(histents); 1721 if (fmt != NULL) 1722 free(fmt); 1723 if (fn != NULL) 1724 free(fn); 1725 } 1726 1727 void 1728 usage(void) 1729 { 1730 1731 (void)fprintf(stderr, 1732 "usage: %s [-CefHiLlmstUvW] [-c count] [-h hashname] [-M core] [-N system]\n" 1733 "\t\t[-u histname] [-w wait] [disks]\n", getprogname()); 1734 exit(1); 1735 } 1736
Indexes created Wed Sep 24 22:09:59 GMT 2025