1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 * 26 * rewritten from UCB 4.13 83/09/25 27 * rewritten from SunOS 4.1 SID 1.18 89/10/06 28 */ 29 30 #include <stdio.h> 31 #include <stdlib.h> 32 #include <stdarg.h> 33 #include <ctype.h> 34 #include <unistd.h> 35 #include <memory.h> 36 #include <errno.h> 37 #include <string.h> 38 #include <signal.h> 39 #include <sys/types.h> 40 #include <time.h> 41 #include <sys/time.h> 42 #include <sys/sysinfo.h> 43 #include <inttypes.h> 44 #include <strings.h> 45 #include <sys/systeminfo.h> 46 #include <kstat.h> 47 #include <locale.h> 48 49 #include "dsr.h" 50 #include "statcommon.h" 51 52 #define DISK_OLD 0x0001 53 #define DISK_NEW 0x0002 54 #define DISK_EXTENDED 0x0004 55 #define DISK_ERRORS 0x0008 56 #define DISK_EXTENDED_ERRORS 0x0010 57 #define DISK_IOPATH_LI 0x0020 /* LunInitiator */ 58 #define DISK_IOPATH_LTI 0x0040 /* LunTargetInitiator */ 59 60 #define DISK_NORMAL (DISK_OLD | DISK_NEW) 61 #define DISK_IO_MASK (DISK_OLD | DISK_NEW | DISK_EXTENDED) 62 #define DISK_ERROR_MASK (DISK_ERRORS | DISK_EXTENDED_ERRORS) 63 #define PRINT_VERTICAL (DISK_ERROR_MASK | DISK_EXTENDED) 64 65 #define REPRINT 19 66 67 /* 68 * It's really a pseudo-gigabyte. We use 1000000000 bytes so that the disk 69 * labels don't look bad. 1GB is really 1073741824 bytes. 70 */ 71 #define DISK_GIGABYTE 1000000000.0 72 73 /* 74 * Function desciptor to be called when extended 75 * headers are used. 76 */ 77 typedef struct formatter { 78 void (*nfunc)(void); 79 struct formatter *next; 80 } format_t; 81 82 /* 83 * Used to get formatting right when printing tty/cpu 84 * data to the right of disk data 85 */ 86 enum show_disk_mode { 87 SHOW_FIRST_ONLY, 88 SHOW_SECOND_ONWARDS, 89 SHOW_ALL 90 }; 91 92 enum show_disk_mode show_disk_mode = SHOW_ALL; 93 94 char *cmdname = "iostat"; 95 int caught_cont = 0; 96 97 static char one_blank[] = " "; 98 static char two_blanks[] = " "; 99 100 /* 101 * count for number of lines to be emitted before a header is 102 * shown again. Only used for the basic format. 103 */ 104 static uint_t tohdr = 1; 105 106 /* 107 * If we're in raw format, have we printed a header? We only do it 108 * once for raw but we emit it every REPRINT lines in non-raw format. 109 * This applies only for the basic header. The extended header is 110 * done only once in both formats. 111 */ 112 static uint_t hdr_out; 113 114 /* 115 * Flags representing arguments from command line 116 */ 117 static uint_t do_tty; /* show tty info (-t) */ 118 static uint_t do_disk; /* show disk info per selected */ 119 /* format (-d, -D, -e, -E, -x -X -Y) */ 120 static uint_t do_cpu; /* show cpu info (-c) */ 121 static uint_t do_interval; /* do intervals (-I) */ 122 static int do_partitions; /* per-partition stats (-p) */ 123 static int do_partitions_only; /* per-partition stats only (-P) */ 124 /* no per-device stats for disks */ 125 static uint_t do_conversions; /* display disks as cXtYdZ (-n) */ 126 static uint_t do_megabytes; /* display data in MB/sec (-M) */ 127 static uint_t do_controller; /* display controller info (-C) */ 128 static uint_t do_raw; /* emit raw format (-r) */ 129 static uint_t timestamp_fmt = NODATE; /* timestamp each display (-T) */ 130 static uint_t do_devid; /* -E should show devid */ 131 132 /* 133 * Default number of disk drives to be displayed in basic format 134 */ 135 #define DEFAULT_LIMIT 4 136 137 struct iodev_filter df; 138 139 static uint_t suppress_state; /* skip state change messages */ 140 static uint_t suppress_zero; /* skip zero valued lines */ 141 static uint_t show_mountpts; /* show mount points */ 142 static int interval; /* interval (seconds) to output */ 143 static int iter; /* iterations from command line */ 144 145 #define SMALL_SCRATCH_BUFLEN MAXNAMELEN 146 147 static int iodevs_nl; /* name field width */ 148 #define IODEVS_NL_MIN 6 /* not too thin for "device" */ 149 #define IODEVS_NL_MAX 24 /* but keep full width under 80 */ 150 151 static char disk_header[132]; 152 static uint_t dh_len; /* disk header length for centering */ 153 static int lineout; /* data waiting to be printed? */ 154 155 static struct snapshot *newss; 156 static struct snapshot *oldss; 157 static double getime; /* elapsed time */ 158 static double percent; /* 100 / etime */ 159 160 /* 161 * List of functions to be called which will construct the desired output 162 */ 163 static format_t *formatter_list; 164 static format_t *formatter_end; 165 166 static u_longlong_t ull_delta(u_longlong_t, u_longlong_t); 167 static uint_t u32_delta(uint_t, uint_t); 168 static void setup(void (*nfunc)(void)); 169 static void print_tty_hdr1(void); 170 static void print_tty_hdr2(void); 171 static void print_cpu_hdr1(void); 172 static void print_cpu_hdr2(void); 173 static void print_tty_data(void); 174 static void print_cpu_data(void); 175 static void print_err_hdr(void); 176 static void print_disk_header(void); 177 static void hdrout(void); 178 static void disk_errors(void); 179 static void do_newline(void); 180 static void push_out(const char *, ...); 181 static void printhdr(int); 182 static void printxhdr(void); 183 static void usage(void); 184 static void do_args(int, char **); 185 static void do_format(void); 186 static void show_all_disks(void); 187 static void show_first_disk(void); 188 static void show_other_disks(void); 189 static void show_disk_errors(void *, void *, void *); 190 static void write_core_header(void); 191 static int fzero(double value); 192 static int safe_strtoi(char const *val, char *errmsg); 193 194 int 195 main(int argc, char **argv) 196 { 197 enum snapshot_types types = SNAP_SYSTEM; 198 kstat_ctl_t *kc; 199 long hz; 200 int forever; 201 hrtime_t start_n; 202 hrtime_t period_n; 203 204 (void) setlocale(LC_ALL, ""); 205 #if !defined(TEXT_DOMAIN) /* Should be defined by cc -D */ 206 #define TEXT_DOMAIN "SYS_TEST" /* Use this only if it weren't */ 207 #endif 208 (void) textdomain(TEXT_DOMAIN); 209 210 do_args(argc, argv); 211 212 /* 213 * iostat historically showed CPU changes, even though 214 * it doesn't provide much useful information 215 */ 216 types |= SNAP_CPUS; 217 218 if (do_disk) 219 types |= SNAP_IODEVS; 220 221 if (do_disk && !do_partitions_only) 222 df.if_allowed_types |= IODEV_DISK; 223 if (do_disk & DISK_IOPATH_LI) { 224 df.if_allowed_types |= IODEV_IOPATH_LTI; 225 types |= SNAP_IOPATHS_LI; 226 } 227 if (do_disk & DISK_IOPATH_LTI) { 228 df.if_allowed_types |= IODEV_IOPATH_LTI; 229 types |= SNAP_IOPATHS_LTI; 230 } 231 if (do_disk & DISK_ERROR_MASK) 232 types |= SNAP_IODEV_ERRORS; 233 if (do_partitions || do_partitions_only) 234 df.if_allowed_types |= IODEV_PARTITION; 235 if (do_conversions) 236 types |= SNAP_IODEV_PRETTY; 237 if (do_devid) 238 types |= SNAP_IODEV_DEVID; 239 if (do_controller) { 240 if (!(do_disk & PRINT_VERTICAL) || 241 (do_disk & DISK_EXTENDED_ERRORS)) 242 fail(0, "-C can only be used with -e or -x."); 243 types |= SNAP_CONTROLLERS; 244 df.if_allowed_types |= IODEV_CONTROLLER; 245 } 246 247 hz = sysconf(_SC_CLK_TCK); 248 249 /* 250 * Undocumented behavior - sending a SIGCONT will result 251 * in a new header being emitted. Used only if we're not 252 * doing extended headers. This is a historical 253 * artifact. 254 */ 255 if (!(do_disk & PRINT_VERTICAL)) 256 (void) signal(SIGCONT, printhdr); 257 258 if (interval) 259 period_n = (hrtime_t)interval * NANOSEC; 260 261 kc = open_kstat(); 262 if (interval) 263 start_n = gethrtime(); 264 newss = acquire_snapshot(kc, types, &df); 265 266 /* compute width of "device" field */ 267 iodevs_nl = newss->s_iodevs_is_name_maxlen; 268 iodevs_nl = (iodevs_nl < IODEVS_NL_MIN) ? 269 IODEVS_NL_MIN : iodevs_nl; 270 iodevs_nl = (iodevs_nl > IODEVS_NL_MAX) ? 271 IODEVS_NL_MAX : iodevs_nl; 272 273 do_format(); 274 275 forever = (iter == 0); 276 do { 277 if (do_conversions && show_mountpts) 278 do_mnttab(); 279 280 if (do_tty || do_cpu) { 281 kstat_t *oldks; 282 oldks = oldss ? &oldss->s_sys.ss_agg_sys : NULL; 283 getime = cpu_ticks_delta(oldks, 284 &newss->s_sys.ss_agg_sys); 285 percent = (getime > 0.0) ? 100.0 / getime : 0.0; 286 getime = (getime / nr_active_cpus(newss)) / hz; 287 if (getime == 0.0) 288 getime = (double)interval; 289 if (getime == 0.0 || do_interval) 290 getime = 1.0; 291 } 292 293 if (formatter_list) { 294 format_t *tmp; 295 tmp = formatter_list; 296 297 if (timestamp_fmt != NODATE) 298 print_timestamp(timestamp_fmt); 299 300 while (tmp) { 301 (tmp->nfunc)(); 302 tmp = tmp->next; 303 } 304 (void) fflush(stdout); 305 } 306 307 /* only remaining/doing a single iteration, we are done */ 308 if (iter == 1) 309 continue; 310 311 if (interval > 0) 312 /* Have a kip */ 313 sleep_until(&start_n, period_n, forever, &caught_cont); 314 315 free_snapshot(oldss); 316 oldss = newss; 317 newss = acquire_snapshot(kc, types, &df); 318 iodevs_nl = (newss->s_iodevs_is_name_maxlen > iodevs_nl) ? 319 newss->s_iodevs_is_name_maxlen : iodevs_nl; 320 iodevs_nl = (iodevs_nl < IODEVS_NL_MIN) ? 321 IODEVS_NL_MIN : iodevs_nl; 322 iodevs_nl = (iodevs_nl > IODEVS_NL_MAX) ? 323 IODEVS_NL_MAX : iodevs_nl; 324 325 if (!suppress_state) 326 snapshot_report_changes(oldss, newss); 327 328 /* if config changed, show stats from boot */ 329 if (snapshot_has_changed(oldss, newss)) { 330 free_snapshot(oldss); 331 oldss = NULL; 332 } 333 334 } while (--iter); 335 336 free_snapshot(oldss); 337 free_snapshot(newss); 338 (void) kstat_close(kc); 339 free(df.if_names); 340 return (0); 341 } 342 343 /* 344 * Some magic numbers used in header formatting. 345 * 346 * DISK_LEN = length of either "kps tps serv" or "wps rps util" 347 * using 0 as the first position 348 * 349 * DISK_ERROR_LEN = length of "s/w h/w trn tot" with one space on 350 * either side. Does not use zero as first pos. 351 * 352 * DEVICE_LEN = length of "device" + 1 character. 353 */ 354 355 #define DISK_LEN 11 356 #define DISK_ERROR_LEN 16 357 #define DEVICE_LEN 7 358 359 /*ARGSUSED*/ 360 static void 361 show_disk_name(void *v1, void *v2, void *data) 362 { 363 struct iodev_snapshot *dev = (struct iodev_snapshot *)v2; 364 size_t slen; 365 char *name; 366 char fbuf[SMALL_SCRATCH_BUFLEN]; 367 368 if (dev == NULL) 369 return; 370 371 name = do_conversions ? dev->is_pretty : dev->is_name; 372 name = name ? name : dev->is_name; 373 374 if (!do_raw) { 375 uint_t width; 376 377 slen = strlen(name); 378 /* 379 * The length is less 380 * than the section 381 * which will be displayed 382 * on the next line. 383 * Center the entry. 384 */ 385 386 width = (DISK_LEN + 1)/2 + (slen / 2); 387 (void) snprintf(fbuf, sizeof (fbuf), 388 "%*s", width, name); 389 name = fbuf; 390 push_out("%-13.13s ", name); 391 } else { 392 push_out(name); 393 } 394 } 395 396 /*ARGSUSED*/ 397 static void 398 show_disk_header(void *v1, void *v2, void *data) 399 { 400 push_out(disk_header); 401 } 402 403 /* 404 * Write out a two line header. What is written out depends on the flags 405 * selected but in the worst case consists of a tty header, a disk header 406 * providing information for 4 disks and a cpu header. 407 * 408 * The tty header consists of the word "tty" on the first line above the 409 * words "tin tout" on the next line. If present the tty portion consumes 410 * the first 10 characters of each line since "tin tout" is surrounded 411 * by single spaces. 412 * 413 * Each of the disk sections is a 14 character "block" in which the name of 414 * the disk is centered in the first 12 characters of the first line. 415 * 416 * The cpu section is an 11 character block with "cpu" centered over the 417 * section. 418 * 419 * The worst case should look as follows: 420 * 421 * 0---------1--------2---------3---------4---------5---------6---------7------- 422 * tty sd0 sd1 sd2 sd3 cpu 423 * tin tout kps tps serv kps tps serv kps tps serv kps tps serv us sy wt id 424 * NNN NNNN NNN NNN NNNN NNN NNN NNNN NNN NNN NNNN NNN NNN NNNN NN NN NN NN 425 * 426 * When -D is specified, the disk header looks as follows (worst case): 427 * 428 * 0---------1--------2---------3---------4---------5---------6---------7------- 429 * tty sd0 sd1 sd2 sd3 cpu 430 * tin tout rps wps util rps wps util rps wps util rps wps util us sy wt id 431 * NNN NNNN NNN NNN NNNN NNN NNN NNNN NNN NNN NNNN NNN NNN NNNN NN NN NN NN 432 */ 433 static void 434 printhdr(int sig) 435 { 436 /* 437 * If we're here because a signal fired, reenable the 438 * signal. 439 */ 440 if (sig) 441 (void) signal(SIGCONT, printhdr); 442 if (sig == SIGCONT) 443 caught_cont = 1; 444 /* 445 * Horizontal mode headers 446 * 447 * First line 448 */ 449 if (do_tty) 450 print_tty_hdr1(); 451 452 if (do_disk & DISK_NORMAL) { 453 (void) snapshot_walk(SNAP_IODEVS, NULL, newss, 454 show_disk_name, NULL); 455 } 456 457 if (do_cpu) 458 print_cpu_hdr1(); 459 do_newline(); 460 461 /* 462 * Second line 463 */ 464 if (do_tty) 465 print_tty_hdr2(); 466 467 if (do_disk & DISK_NORMAL) { 468 (void) snapshot_walk(SNAP_IODEVS, NULL, newss, 469 show_disk_header, NULL); 470 } 471 472 if (do_cpu) 473 print_cpu_hdr2(); 474 do_newline(); 475 476 tohdr = REPRINT; 477 } 478 479 /* 480 * Write out the extended header centered over the core information. 481 */ 482 static void 483 write_core_header(void) 484 { 485 char *edev = "extended device statistics"; 486 uint_t lead_space_ct; 487 uint_t follow_space_ct; 488 size_t edevlen; 489 490 if (do_raw == 0) { 491 /* 492 * The things we do to look nice... 493 * 494 * Center the core output header. Make sure we have the 495 * right number of trailing spaces for follow-on headers 496 * (i.e., cpu and/or tty and/or errors). 497 */ 498 edevlen = strlen(edev); 499 lead_space_ct = dh_len - edevlen; 500 lead_space_ct /= 2; 501 if (lead_space_ct > 0) { 502 follow_space_ct = dh_len - (lead_space_ct + edevlen); 503 if (do_disk & DISK_ERRORS) 504 follow_space_ct -= DISK_ERROR_LEN; 505 if ((do_disk & DISK_EXTENDED) && do_conversions) 506 follow_space_ct -= DEVICE_LEN; 507 508 push_out("%1$*2$.*2$s%3$s%4$*5$.*5$s", one_blank, 509 lead_space_ct, edev, one_blank, follow_space_ct); 510 } else 511 push_out("%56s", edev); 512 } else 513 push_out(edev); 514 } 515 516 /* 517 * In extended mode headers, we don't want to reprint the header on 518 * signals as they are printed every time anyways. 519 */ 520 static void 521 printxhdr(void) 522 { 523 524 /* 525 * Vertical mode headers 526 */ 527 if (do_disk & DISK_EXTENDED) 528 setup(write_core_header); 529 if (do_disk & DISK_ERRORS) 530 setup(print_err_hdr); 531 532 if (do_conversions) { 533 setup(do_newline); 534 if (do_disk & (DISK_EXTENDED | DISK_ERRORS)) 535 setup(print_disk_header); 536 setup(do_newline); 537 } else { 538 if (do_tty) 539 setup(print_tty_hdr1); 540 if (do_cpu) 541 setup(print_cpu_hdr1); 542 setup(do_newline); 543 544 if (do_disk & (DISK_EXTENDED | DISK_ERRORS)) 545 setup(print_disk_header); 546 if (do_tty) 547 setup(print_tty_hdr2); 548 if (do_cpu) 549 setup(print_cpu_hdr2); 550 setup(do_newline); 551 } 552 } 553 554 /* 555 * Write out a line for this disk - note that show_disk writes out 556 * full lines or blocks for each selected disk. 557 */ 558 static void 559 show_disk(void *v1, void *v2, void *data) 560 { 561 struct iodev_snapshot *old = (struct iodev_snapshot *)v1; 562 struct iodev_snapshot *new = (struct iodev_snapshot *)v2; 563 int *count = (int *)data; 564 double rps, wps, tps, mtps, krps, kwps, kps, avw, avr, w_pct, r_pct; 565 double wserv, rserv, serv; 566 double iosize; /* kb/sec or MB/sec */ 567 double etime, hr_etime; 568 char *disk_name; 569 u_longlong_t ldeltas; 570 uint_t udeltas; 571 uint64_t t_delta; 572 uint64_t w_delta; 573 uint64_t r_delta; 574 int doit = 1; 575 int i; 576 uint_t toterrs; 577 char *fstr; 578 579 if (new == NULL) 580 return; 581 582 switch (show_disk_mode) { 583 case SHOW_FIRST_ONLY: 584 if (count != NULL && *count) 585 return; 586 break; 587 588 case SHOW_SECOND_ONWARDS: 589 if (count != NULL && !*count) { 590 (*count)++; 591 return; 592 } 593 break; 594 595 default: 596 break; 597 } 598 599 disk_name = do_conversions ? new->is_pretty : new->is_name; 600 disk_name = disk_name ? disk_name : new->is_name; 601 602 /* 603 * Only do if we want IO stats - Avoids errors traveling this 604 * section if that's all we want to see. 605 */ 606 if (do_disk & DISK_IO_MASK) { 607 if (old) { 608 t_delta = hrtime_delta(old->is_snaptime, 609 new->is_snaptime); 610 } else { 611 t_delta = hrtime_delta(new->is_crtime, 612 new->is_snaptime); 613 } 614 615 if (new->is_nr_children) { 616 if (new->is_type == IODEV_CONTROLLER) { 617 t_delta /= new->is_nr_children; 618 } else if ((new->is_type == IODEV_IOPATH_LT) || 619 (new->is_type == IODEV_IOPATH_LI)) { 620 /* synthetic path */ 621 if (!old) { 622 t_delta = new->is_crtime; 623 } 624 t_delta /= new->is_nr_children; 625 } 626 } 627 628 hr_etime = (double)t_delta; 629 if (hr_etime == 0.0) 630 hr_etime = (double)NANOSEC; 631 etime = hr_etime / (double)NANOSEC; 632 633 /* reads per second */ 634 udeltas = u32_delta(old ? old->is_stats.reads : 0, 635 new->is_stats.reads); 636 rps = (double)udeltas; 637 rps /= etime; 638 639 /* writes per second */ 640 udeltas = u32_delta(old ? old->is_stats.writes : 0, 641 new->is_stats.writes); 642 wps = (double)udeltas; 643 wps /= etime; 644 645 tps = rps + wps; 646 /* transactions per second */ 647 648 /* 649 * report throughput as either kb/sec or MB/sec 650 */ 651 652 if (!do_megabytes) 653 iosize = 1024.0; 654 else 655 iosize = 1048576.0; 656 657 ldeltas = ull_delta(old ? old->is_stats.nread : 0, 658 new->is_stats.nread); 659 if (ldeltas) { 660 krps = (double)ldeltas; 661 krps /= etime; 662 krps /= iosize; 663 } else 664 krps = 0.0; 665 666 ldeltas = ull_delta(old ? old->is_stats.nwritten : 0, 667 new->is_stats.nwritten); 668 if (ldeltas) { 669 kwps = (double)ldeltas; 670 kwps /= etime; 671 kwps /= iosize; 672 } else 673 kwps = 0.0; 674 675 /* 676 * Blocks transferred per second 677 */ 678 kps = krps + kwps; 679 680 /* 681 * Average number of wait transactions waiting 682 */ 683 w_delta = hrtime_delta((u_longlong_t) 684 (old ? old->is_stats.wlentime : 0), 685 new->is_stats.wlentime); 686 if (w_delta) { 687 avw = (double)w_delta; 688 avw /= hr_etime; 689 } else 690 avw = 0.0; 691 692 /* 693 * Average number of run transactions waiting 694 */ 695 r_delta = hrtime_delta(old ? old->is_stats.rlentime : 0, 696 new->is_stats.rlentime); 697 if (r_delta) { 698 avr = (double)r_delta; 699 avr /= hr_etime; 700 } else 701 avr = 0.0; 702 703 /* 704 * Average wait service time in milliseconds 705 */ 706 if (tps > 0.0 && (avw != 0.0 || avr != 0.0)) { 707 mtps = 1000.0 / tps; 708 if (avw != 0.0) 709 wserv = avw * mtps; 710 else 711 wserv = 0.0; 712 713 if (avr != 0.0) 714 rserv = avr * mtps; 715 else 716 rserv = 0.0; 717 serv = rserv + wserv; 718 } else { 719 rserv = 0.0; 720 wserv = 0.0; 721 serv = 0.0; 722 } 723 724 /* % of time there is a transaction waiting for service */ 725 t_delta = hrtime_delta(old ? old->is_stats.wtime : 0, 726 new->is_stats.wtime); 727 if (t_delta) { 728 w_pct = (double)t_delta; 729 w_pct /= hr_etime; 730 w_pct *= 100.0; 731 732 /* 733 * Average the wait queue utilization over the 734 * the controller's devices, if this is a controller. 735 */ 736 if (new->is_type == IODEV_CONTROLLER) 737 w_pct /= new->is_nr_children; 738 } else 739 w_pct = 0.0; 740 741 /* % of time there is a transaction running */ 742 t_delta = hrtime_delta(old ? old->is_stats.rtime : 0, 743 new->is_stats.rtime); 744 if (t_delta) { 745 r_pct = (double)t_delta; 746 r_pct /= hr_etime; 747 r_pct *= 100.0; 748 749 /* 750 * Average the percent busy over the controller's 751 * devices, if this is a controller. 752 */ 753 if (new->is_type == IODEV_CONTROLLER) 754 w_pct /= new->is_nr_children; 755 } else { 756 r_pct = 0.0; 757 } 758 759 /* % of time there is a transaction running */ 760 if (do_interval) { 761 rps *= etime; 762 wps *= etime; 763 tps *= etime; 764 krps *= etime; 765 kwps *= etime; 766 kps *= etime; 767 } 768 } 769 770 if (do_disk & (DISK_EXTENDED | DISK_ERRORS)) { 771 if ((!do_conversions) && ((suppress_zero == 0) || 772 ((do_disk & DISK_EXTENDED) == 0))) { 773 if (do_raw == 0) { 774 push_out("%-*.*s", 775 iodevs_nl, iodevs_nl, disk_name); 776 } else { 777 push_out(disk_name); 778 } 779 } 780 } 781 782 switch (do_disk & DISK_IO_MASK) { 783 case DISK_OLD: 784 if (do_raw == 0) 785 fstr = "%3.0f %3.0f %4.0f "; 786 else 787 fstr = "%.0f,%.0f,%.0f"; 788 push_out(fstr, kps, tps, serv); 789 break; 790 case DISK_NEW: 791 if (do_raw == 0) 792 fstr = "%3.0f %3.0f %4.1f "; 793 else 794 fstr = "%.0f,%.0f,%.1f"; 795 push_out(fstr, rps, wps, r_pct); 796 break; 797 case DISK_EXTENDED: 798 if (suppress_zero) { 799 if (fzero(rps) && fzero(wps) && fzero(krps) && 800 fzero(kwps) && fzero(avw) && fzero(avr) && 801 fzero(serv) && fzero(w_pct) && fzero(r_pct)) { 802 doit = 0; 803 } else if (do_conversions == 0) { 804 if (do_raw == 0) { 805 push_out("%-*.*s", 806 iodevs_nl, iodevs_nl, disk_name); 807 } else { 808 push_out(disk_name); 809 } 810 } 811 } 812 if (doit) { 813 if (!do_conversions) { 814 if (do_raw == 0) { 815 fstr = " %6.1f %6.1f %6.1f %6.1f " 816 "%4.1f %4.1f %6.1f %3.0f " 817 "%3.0f "; 818 } else { 819 fstr = "%.1f,%.1f,%.1f,%.1f,%.1f,%.1f," 820 "%.1f,%.0f,%.0f"; 821 } 822 push_out(fstr, rps, wps, krps, kwps, avw, avr, 823 serv, w_pct, r_pct); 824 } else { 825 if (do_raw == 0) { 826 fstr = " %6.1f %6.1f %6.1f %6.1f " 827 "%4.1f %4.1f %6.1f %6.1f " 828 "%3.0f %3.0f "; 829 } else { 830 fstr = "%.1f,%.1f,%.1f,%.1f,%.1f,%.1f," 831 "%.1f,%.1f,%.0f,%.0f"; 832 } 833 push_out(fstr, rps, wps, krps, kwps, avw, avr, 834 wserv, rserv, w_pct, r_pct); 835 } 836 } 837 break; 838 } 839 840 if (do_disk & DISK_ERRORS) { 841 if ((do_disk == DISK_ERRORS)) { 842 if (do_raw == 0) 843 push_out(two_blanks); 844 } 845 846 if (new->is_errors.ks_data) { 847 kstat_named_t *knp; 848 char *efstr; 849 850 if (do_raw == 0) 851 efstr = "%3u "; 852 else 853 efstr = "%u"; 854 toterrs = 0; 855 knp = KSTAT_NAMED_PTR(&new->is_errors); 856 for (i = 0; i < 3; i++) { 857 switch (knp[i].data_type) { 858 case KSTAT_DATA_ULONG: 859 push_out(efstr, 860 knp[i].value.ui32); 861 toterrs += knp[i].value.ui32; 862 break; 863 case KSTAT_DATA_ULONGLONG: 864 /* 865 * We're only set up to 866 * write out the low 867 * order 32-bits so 868 * just grab that. 869 */ 870 push_out(efstr, 871 knp[i].value.ui32); 872 toterrs += knp[i].value.ui32; 873 break; 874 default: 875 break; 876 } 877 } 878 push_out(efstr, toterrs); 879 } else { 880 if (do_raw == 0) 881 push_out(" 0 0 0 0 "); 882 else 883 push_out("0,0,0,0"); 884 } 885 886 } 887 888 if (suppress_zero == 0 || doit == 1) { 889 if ((do_disk & (DISK_EXTENDED | DISK_ERRORS)) && 890 do_conversions) { 891 push_out("%s", disk_name); 892 if (show_mountpts && new->is_dname) { 893 mnt_t *mount_pt; 894 char *lu; 895 char *dnlu; 896 char lub[SMALL_SCRATCH_BUFLEN]; 897 898 lu = strrchr(new->is_dname, '/'); 899 if (lu) { 900 /* only the part after a possible '/' */ 901 dnlu = strrchr(disk_name, '/'); 902 if (dnlu != NULL && 903 strcmp(dnlu, lu) == 0) 904 lu = new->is_dname; 905 else { 906 *lu = 0; 907 (void) strcpy(lub, 908 new->is_dname); 909 *lu = '/'; 910 (void) strcat(lub, "/"); 911 (void) strcat(lub, 912 disk_name); 913 lu = lub; 914 } 915 } else 916 lu = disk_name; 917 mount_pt = lookup_mntent_byname(lu); 918 if (mount_pt) { 919 if (do_raw == 0) 920 push_out(" (%s)", 921 mount_pt->mount_point); 922 else 923 push_out("(%s)", 924 mount_pt->mount_point); 925 } 926 } 927 } 928 } 929 930 if ((do_disk & PRINT_VERTICAL) && show_disk_mode != SHOW_FIRST_ONLY) 931 do_newline(); 932 933 if (count != NULL) 934 (*count)++; 935 } 936 937 static void 938 usage(void) 939 { 940 (void) fprintf(stderr, 941 "Usage: iostat [-cCdDeEiImMnpPrstxXYz] " 942 " [-l n] [-T d|u] [disk ...] [interval [count]]\n" 943 "\t\t-c: report percentage of time system has spent\n" 944 "\t\t\tin user/system/wait/idle mode\n" 945 "\t\t-C: report disk statistics by controller\n" 946 "\t\t-d: display disk Kb/sec, transfers/sec, avg. \n" 947 "\t\t\tservice time in milliseconds \n" 948 "\t\t-D: display disk reads/sec, writes/sec, \n" 949 "\t\t\tpercentage disk utilization \n" 950 "\t\t-e: report device error summary statistics\n" 951 "\t\t-E: report extended device error statistics\n" 952 "\t\t-i: show device IDs for -E output\n" 953 "\t\t-I: report the counts in each interval,\n" 954 "\t\t\tinstead of rates, where applicable\n" 955 "\t\t-l n: Limit the number of disks to n\n" 956 "\t\t-m: Display mount points (most useful with -p)\n" 957 "\t\t-M: Display data throughput in MB/sec " 958 "instead of Kb/sec\n" 959 "\t\t-n: convert device names to cXdYtZ format\n" 960 "\t\t-p: report per-partition disk statistics\n" 961 "\t\t-P: report per-partition disk statistics only,\n" 962 "\t\t\tno per-device disk statistics\n" 963 "\t\t-r: Display data in comma separated format\n" 964 "\t\t-s: Suppress state change messages\n" 965 "\t\t-T d|u Display a timestamp in date (d) or unix " 966 "time_t (u)\n" 967 "\t\t-t: display chars read/written to terminals\n" 968 "\t\t-x: display extended disk statistics\n" 969 "\t\t-X: display I/O path statistics\n" 970 "\t\t-Y: display I/O path (I/T/L) statistics\n" 971 "\t\t-z: Suppress entries with all zero values\n"); 972 exit(1); 973 } 974 975 /*ARGSUSED*/ 976 static void 977 show_disk_errors(void *v1, void *v2, void *d) 978 { 979 struct iodev_snapshot *disk = (struct iodev_snapshot *)v2; 980 kstat_named_t *knp; 981 size_t col; 982 int i, len; 983 char *dev_name; 984 985 if (disk->is_errors.ks_ndata == 0) 986 return; 987 if (disk->is_type == IODEV_CONTROLLER) 988 return; 989 990 dev_name = do_conversions ? disk->is_pretty : disk->is_name; 991 dev_name = dev_name ? dev_name : disk->is_name; 992 993 len = strlen(dev_name); 994 if (len > 20) 995 push_out("%s ", dev_name); 996 else if (len > 16) 997 push_out("%-20.20s ", dev_name); 998 else { 999 if (do_conversions) 1000 push_out("%-16.16s ", dev_name); 1001 else 1002 push_out("%-9.9s ", dev_name); 1003 } 1004 col = 0; 1005 1006 knp = KSTAT_NAMED_PTR(&disk->is_errors); 1007 for (i = 0; i < disk->is_errors.ks_ndata; i++) { 1008 /* skip kstats that the driver did not kstat_named_init */ 1009 if (knp[i].name[0] == 0) 1010 continue; 1011 1012 col += strlen(knp[i].name); 1013 1014 switch (knp[i].data_type) { 1015 case KSTAT_DATA_CHAR: 1016 if ((strcmp(knp[i].name, "Serial No") == 0) && 1017 do_devid) { 1018 if (disk->is_devid) { 1019 push_out("Device Id: %s ", 1020 disk->is_devid); 1021 col += strlen(disk->is_devid); 1022 } else 1023 push_out("Device Id: "); 1024 } else { 1025 push_out("%s: %-.16s ", knp[i].name, 1026 &knp[i].value.c[0]); 1027 col += strlen(&knp[i].value.c[0]); 1028 } 1029 break; 1030 case KSTAT_DATA_ULONG: 1031 push_out("%s: %u ", knp[i].name, 1032 knp[i].value.ui32); 1033 col += 4; 1034 break; 1035 case KSTAT_DATA_ULONGLONG: 1036 if (strcmp(knp[i].name, "Size") == 0) { 1037 push_out("%s: %2.2fGB <%llu bytes>\n", 1038 knp[i].name, 1039 (float)knp[i].value.ui64 / 1040 DISK_GIGABYTE, 1041 knp[i].value.ui64); 1042 col = 0; 1043 break; 1044 } 1045 push_out("%s: %u ", knp[i].name, 1046 knp[i].value.ui32); 1047 col += 4; 1048 break; 1049 } 1050 if ((col >= 62) || (i == 2)) { 1051 do_newline(); 1052 col = 0; 1053 } 1054 } 1055 if (col > 0) { 1056 do_newline(); 1057 } 1058 do_newline(); 1059 } 1060 1061 void 1062 do_args(int argc, char **argv) 1063 { 1064 int c; 1065 int errflg = 0; 1066 extern char *optarg; 1067 extern int optind; 1068 1069 while ((c = getopt(argc, argv, "tdDxXYCciIpPnmMeEszrT:l:")) != EOF) 1070 switch (c) { 1071 case 't': 1072 do_tty++; 1073 break; 1074 case 'd': 1075 do_disk |= DISK_OLD; 1076 break; 1077 case 'D': 1078 do_disk |= DISK_NEW; 1079 break; 1080 case 'x': 1081 do_disk |= DISK_EXTENDED; 1082 break; 1083 case 'X': 1084 if (do_disk & DISK_IOPATH_LTI) 1085 errflg++; /* -Y already used */ 1086 else 1087 do_disk |= DISK_IOPATH_LI; 1088 break; 1089 case 'Y': 1090 if (do_disk & DISK_IOPATH_LI) 1091 errflg++; /* -X already used */ 1092 else 1093 do_disk |= DISK_IOPATH_LTI; 1094 break; 1095 case 'C': 1096 do_controller++; 1097 break; 1098 case 'c': 1099 do_cpu++; 1100 break; 1101 case 'I': 1102 do_interval++; 1103 break; 1104 case 'p': 1105 do_partitions++; 1106 break; 1107 case 'P': 1108 do_partitions_only++; 1109 break; 1110 case 'n': 1111 do_conversions++; 1112 break; 1113 case 'M': 1114 do_megabytes++; 1115 break; 1116 case 'e': 1117 do_disk |= DISK_ERRORS; 1118 break; 1119 case 'E': 1120 do_disk |= DISK_EXTENDED_ERRORS; 1121 break; 1122 case 'i': 1123 do_devid = 1; 1124 break; 1125 case 's': 1126 suppress_state = 1; 1127 break; 1128 case 'z': 1129 suppress_zero = 1; 1130 break; 1131 case 'm': 1132 show_mountpts = 1; 1133 break; 1134 case 'T': 1135 if (optarg) { 1136 if (*optarg == 'u') 1137 timestamp_fmt = UDATE; 1138 else if (*optarg == 'd') 1139 timestamp_fmt = DDATE; 1140 else 1141 errflg++; 1142 } else { 1143 errflg++; 1144 } 1145 break; 1146 case 'r': 1147 do_raw = 1; 1148 break; 1149 case 'l': 1150 df.if_max_iodevs = safe_strtoi(optarg, "invalid limit"); 1151 if (df.if_max_iodevs < 1) 1152 usage(); 1153 break; 1154 case '?': 1155 errflg++; 1156 } 1157 1158 if ((do_disk & DISK_OLD) && (do_disk & DISK_NEW)) { 1159 (void) fprintf(stderr, "-d and -D are incompatible.\n"); 1160 usage(); 1161 } 1162 1163 if (errflg) { 1164 usage(); 1165 } 1166 1167 /* if no output classes explicity specified, use defaults */ 1168 if (do_tty == 0 && do_disk == 0 && do_cpu == 0) 1169 do_tty = do_cpu = 1, do_disk = DISK_OLD; 1170 1171 /* 1172 * multi-path options (-X, -Y) without a specific vertical 1173 * output format (-x, -e, -E) imply extended -x format 1174 */ 1175 if ((do_disk & (DISK_IOPATH_LI | DISK_IOPATH_LTI)) && 1176 !(do_disk & PRINT_VERTICAL)) 1177 do_disk |= DISK_EXTENDED; 1178 1179 /* 1180 * If conflicting options take the preferred 1181 * -D and -x result in -x 1182 * -d or -D and -e or -E gives only whatever -d or -D was specified 1183 */ 1184 if ((do_disk & DISK_EXTENDED) && (do_disk & DISK_NORMAL)) 1185 do_disk &= ~DISK_NORMAL; 1186 if ((do_disk & DISK_NORMAL) && (do_disk & DISK_ERROR_MASK)) 1187 do_disk &= ~DISK_ERROR_MASK; 1188 1189 /* nfs, tape, always shown */ 1190 df.if_allowed_types = IODEV_NFS | IODEV_TAPE; 1191 1192 /* 1193 * If limit == 0 then no command line limit was set, else if any of 1194 * the flags that cause unlimited disks were not set, 1195 * use the default of 4 1196 */ 1197 if (df.if_max_iodevs == 0) { 1198 df.if_max_iodevs = DEFAULT_LIMIT; 1199 df.if_skip_floppy = 1; 1200 if (do_disk & (DISK_EXTENDED | DISK_ERRORS | 1201 DISK_EXTENDED_ERRORS)) { 1202 df.if_max_iodevs = UNLIMITED_IODEVS; 1203 df.if_skip_floppy = 0; 1204 } 1205 } 1206 if (do_disk) { 1207 size_t count = 0; 1208 size_t i = optind; 1209 1210 while (i < argc && !isdigit(argv[i][0])) { 1211 count++; 1212 i++; 1213 } 1214 1215 /* 1216 * "Note: disks explicitly requested 1217 * are not subject to this disk limit" 1218 */ 1219 if ((count > df.if_max_iodevs) || 1220 (count && (df.if_max_iodevs == UNLIMITED_IODEVS))) 1221 df.if_max_iodevs = count; 1222 1223 df.if_names = safe_alloc(count * sizeof (char *)); 1224 (void) memset(df.if_names, 0, count * sizeof (char *)); 1225 1226 df.if_nr_names = 0; 1227 while (optind < argc && !isdigit(argv[optind][0])) 1228 df.if_names[df.if_nr_names++] = argv[optind++]; 1229 } 1230 if (optind < argc) { 1231 interval = safe_strtoi(argv[optind], "invalid interval"); 1232 if (interval < 1) 1233 fail(0, "invalid interval"); 1234 optind++; 1235 1236 if (optind < argc) { 1237 iter = safe_strtoi(argv[optind], "invalid count"); 1238 if (iter < 1) 1239 fail(0, "invalid count"); 1240 optind++; 1241 } 1242 } 1243 if (interval == 0) 1244 iter = 1; 1245 if (optind < argc) 1246 usage(); 1247 } 1248 1249 /* 1250 * Driver for doing the extended header formatting. Will produce 1251 * the function stack needed to output an extended header based 1252 * on the options selected. 1253 */ 1254 1255 void 1256 do_format(void) 1257 { 1258 char header[SMALL_SCRATCH_BUFLEN]; 1259 char ch; 1260 char iosz; 1261 const char *fstr; 1262 1263 disk_header[0] = 0; 1264 ch = (do_interval ? 'i' : 's'); 1265 iosz = (do_megabytes ? 'M' : 'k'); 1266 if (do_disk & DISK_ERRORS) { 1267 if (do_raw == 0) { 1268 (void) sprintf(header, "s/w h/w trn tot "); 1269 } else 1270 (void) sprintf(header, "s/w,h/w,trn,tot"); 1271 } else 1272 *header = NULL; 1273 switch (do_disk & DISK_IO_MASK) { 1274 case DISK_OLD: 1275 if (do_raw == 0) 1276 fstr = "%cp%c tp%c serv "; 1277 else 1278 fstr = "%cp%c,tp%c,serv"; 1279 (void) snprintf(disk_header, sizeof (disk_header), 1280 fstr, iosz, ch, ch); 1281 break; 1282 case DISK_NEW: 1283 if (do_raw == 0) 1284 fstr = "rp%c wp%c util "; 1285 else 1286 fstr = "%rp%c,wp%c,util"; 1287 (void) snprintf(disk_header, sizeof (disk_header), 1288 fstr, ch, ch); 1289 break; 1290 case DISK_EXTENDED: 1291 /* This is -x option */ 1292 if (!do_conversions) { 1293 /* without -n option */ 1294 if (do_raw == 0) { 1295 /* without -r option */ 1296 (void) snprintf(disk_header, 1297 sizeof (disk_header), 1298 "%-*.*s r/%c w/%c " 1299 "%cr/%c %cw/%c wait actv " 1300 "svc_t %%%%w %%%%b %s", 1301 iodevs_nl, iodevs_nl, "device", 1302 ch, ch, iosz, ch, iosz, ch, header); 1303 } else { 1304 /* with -r option */ 1305 (void) snprintf(disk_header, 1306 sizeof (disk_header), 1307 "device,r/%c,w/%c,%cr/%c,%cw/%c," 1308 "wait,actv,svc_t,%%%%w," 1309 "%%%%b,%s", 1310 ch, ch, iosz, ch, iosz, ch, header); 1311 } 1312 } else { 1313 /* with -n option */ 1314 if (do_raw == 0) { 1315 fstr = " r/%c w/%c %cr/%c " 1316 "%cw/%c wait actv wsvc_t asvc_t " 1317 "%%%%w %%%%b %sdevice"; 1318 } else { 1319 fstr = "r/%c,w/%c,%cr/%c,%cw/%c," 1320 "wait,actv,wsvc_t,asvc_t," 1321 "%%%%w,%%%%b,%sdevice"; 1322 } 1323 (void) snprintf(disk_header, 1324 sizeof (disk_header), 1325 fstr, ch, ch, iosz, ch, iosz, 1326 ch, header); 1327 } 1328 break; 1329 default: 1330 break; 1331 } 1332 1333 /* do DISK_ERRORS header (already added above for DISK_EXTENDED) */ 1334 if ((do_disk & DISK_ERRORS) && 1335 ((do_disk & DISK_IO_MASK) != DISK_EXTENDED)) { 1336 if (!do_conversions) { 1337 if (do_raw == 0) 1338 (void) snprintf(disk_header, 1339 sizeof (disk_header), "%-*.*s %s", 1340 iodevs_nl, iodevs_nl, "device", header); 1341 else 1342 (void) snprintf(disk_header, 1343 sizeof (disk_header), "device,%s", header); 1344 } else { 1345 if (do_raw == 0) { 1346 (void) snprintf(disk_header, 1347 sizeof (disk_header), 1348 " %sdevice", header); 1349 } else { 1350 (void) snprintf(disk_header, 1351 sizeof (disk_header), 1352 "%s,device", header); 1353 } 1354 } 1355 } else { 1356 /* 1357 * Need to subtract two characters for the % escape in 1358 * the string. 1359 */ 1360 dh_len = strlen(disk_header) - 2; 1361 } 1362 1363 /* 1364 * -n *and* (-E *or* -e *or* -x) 1365 */ 1366 if (do_conversions && (do_disk & PRINT_VERTICAL)) { 1367 if (do_tty) 1368 setup(print_tty_hdr1); 1369 if (do_cpu) 1370 setup(print_cpu_hdr1); 1371 if (do_tty || do_cpu) 1372 setup(do_newline); 1373 if (do_tty) 1374 setup(print_tty_hdr2); 1375 if (do_cpu) 1376 setup(print_cpu_hdr2); 1377 if (do_tty || do_cpu) 1378 setup(do_newline); 1379 if (do_tty) 1380 setup(print_tty_data); 1381 if (do_cpu) 1382 setup(print_cpu_data); 1383 if (do_tty || do_cpu) 1384 setup(do_newline); 1385 printxhdr(); 1386 1387 setup(show_all_disks); 1388 } else { 1389 /* 1390 * These unholy gymnastics are necessary to place CPU/tty 1391 * data to the right of the disks/errors for the first 1392 * line in vertical mode. 1393 */ 1394 if (do_disk & PRINT_VERTICAL) { 1395 printxhdr(); 1396 1397 setup(show_first_disk); 1398 if (do_tty) 1399 setup(print_tty_data); 1400 if (do_cpu) 1401 setup(print_cpu_data); 1402 setup(do_newline); 1403 1404 setup(show_other_disks); 1405 } else { 1406 setup(hdrout); 1407 if (do_tty) 1408 setup(print_tty_data); 1409 setup(show_all_disks); 1410 if (do_cpu) 1411 setup(print_cpu_data); 1412 } 1413 1414 setup(do_newline); 1415 } 1416 if (do_disk & DISK_EXTENDED_ERRORS) 1417 setup(disk_errors); 1418 } 1419 1420 /* 1421 * Add a new function to the list of functions 1422 * for this invocation. Once on the stack the 1423 * function is never removed nor does its place 1424 * change. 1425 */ 1426 void 1427 setup(void (*nfunc)(void)) 1428 { 1429 format_t *tmp; 1430 1431 tmp = safe_alloc(sizeof (format_t)); 1432 tmp->nfunc = nfunc; 1433 tmp->next = 0; 1434 if (formatter_end) 1435 formatter_end->next = tmp; 1436 else 1437 formatter_list = tmp; 1438 formatter_end = tmp; 1439 1440 } 1441 1442 /* 1443 * The functions after this comment are devoted to printing 1444 * various parts of the header. They are selected based on the 1445 * options provided when the program was invoked. The functions 1446 * are either directly invoked in printhdr() or are indirectly 1447 * invoked by being placed on the list of functions used when 1448 * extended headers are used. 1449 */ 1450 void 1451 print_tty_hdr1(void) 1452 { 1453 char *fstr; 1454 char *dstr; 1455 1456 if (do_raw == 0) { 1457 fstr = "%10.10s"; 1458 dstr = "tty "; 1459 } else { 1460 fstr = "%s"; 1461 dstr = "tty"; 1462 } 1463 push_out(fstr, dstr); 1464 } 1465 1466 void 1467 print_tty_hdr2(void) 1468 { 1469 if (do_raw == 0) 1470 push_out("%-10.10s", " tin tout"); 1471 else 1472 push_out("tin,tout"); 1473 } 1474 1475 void 1476 print_cpu_hdr1(void) 1477 { 1478 char *dstr; 1479 1480 if (do_raw == 0) 1481 dstr = " cpu"; 1482 else 1483 dstr = "cpu"; 1484 push_out(dstr); 1485 } 1486 1487 void 1488 print_cpu_hdr2(void) 1489 { 1490 char *dstr; 1491 1492 if (do_raw == 0) 1493 dstr = " us sy wt id"; 1494 else 1495 dstr = "us,sy,wt,id"; 1496 push_out(dstr); 1497 } 1498 1499 /* 1500 * Assumption is that tty data is always first - no need for raw mode leading 1501 * comma. 1502 */ 1503 void 1504 print_tty_data(void) 1505 { 1506 char *fstr; 1507 uint64_t deltas; 1508 double raw; 1509 double outch; 1510 kstat_t *oldks = NULL; 1511 1512 if (oldss) 1513 oldks = &oldss->s_sys.ss_agg_sys; 1514 1515 if (do_raw == 0) 1516 fstr = " %3.0f %4.0f "; 1517 else 1518 fstr = "%.0f,%.0f"; 1519 deltas = kstat_delta(oldks, &newss->s_sys.ss_agg_sys, "rawch"); 1520 raw = deltas; 1521 raw /= getime; 1522 deltas = kstat_delta(oldks, &newss->s_sys.ss_agg_sys, "outch"); 1523 outch = deltas; 1524 outch /= getime; 1525 push_out(fstr, raw, outch); 1526 } 1527 1528 /* 1529 * Write out CPU data 1530 */ 1531 void 1532 print_cpu_data(void) 1533 { 1534 char *fstr; 1535 uint64_t idle; 1536 uint64_t user; 1537 uint64_t kern; 1538 uint64_t wait; 1539 kstat_t *oldks = NULL; 1540 1541 if (oldss) 1542 oldks = &oldss->s_sys.ss_agg_sys; 1543 1544 if (do_raw == 0) 1545 fstr = " %2.0f %2.0f %2.0f %2.0f"; 1546 else 1547 fstr = "%.0f,%.0f,%.0f,%.0f"; 1548 1549 idle = kstat_delta(oldks, &newss->s_sys.ss_agg_sys, "cpu_ticks_idle"); 1550 user = kstat_delta(oldks, &newss->s_sys.ss_agg_sys, "cpu_ticks_user"); 1551 kern = kstat_delta(oldks, &newss->s_sys.ss_agg_sys, "cpu_ticks_kernel"); 1552 wait = kstat_delta(oldks, &newss->s_sys.ss_agg_sys, "cpu_ticks_wait"); 1553 push_out(fstr, user * percent, kern * percent, 1554 wait * percent, idle * percent); 1555 } 1556 1557 /* 1558 * Emit the appropriate header. 1559 */ 1560 void 1561 hdrout(void) 1562 { 1563 if (do_raw == 0) { 1564 if (--tohdr == 0) 1565 printhdr(0); 1566 } else if (hdr_out == 0) { 1567 printhdr(0); 1568 hdr_out = 1; 1569 } 1570 } 1571 1572 /* 1573 * Write out disk errors when -E is specified. 1574 */ 1575 void 1576 disk_errors(void) 1577 { 1578 (void) snapshot_walk(SNAP_IODEVS, oldss, newss, show_disk_errors, NULL); 1579 } 1580 1581 void 1582 show_first_disk(void) 1583 { 1584 int count = 0; 1585 1586 show_disk_mode = SHOW_FIRST_ONLY; 1587 1588 (void) snapshot_walk(SNAP_IODEVS, oldss, newss, show_disk, &count); 1589 } 1590 1591 void 1592 show_other_disks(void) 1593 { 1594 int count = 0; 1595 1596 show_disk_mode = SHOW_SECOND_ONWARDS; 1597 1598 (void) snapshot_walk(SNAP_IODEVS, oldss, newss, show_disk, &count); 1599 } 1600 1601 void 1602 show_all_disks(void) 1603 { 1604 int count = 0; 1605 1606 show_disk_mode = SHOW_ALL; 1607 1608 (void) snapshot_walk(SNAP_IODEVS, oldss, newss, show_disk, &count); 1609 } 1610 1611 /* 1612 * Write a newline out and clear the lineout flag. 1613 */ 1614 static void 1615 do_newline(void) 1616 { 1617 if (lineout) { 1618 (void) putchar('\n'); 1619 lineout = 0; 1620 } 1621 } 1622 1623 /* 1624 * Generalized printf function that determines what extra 1625 * to print out if we're in raw mode. At this time we 1626 * don't care about errors. 1627 */ 1628 static void 1629 push_out(const char *message, ...) 1630 { 1631 va_list args; 1632 1633 va_start(args, message); 1634 if (do_raw && lineout == 1) 1635 (void) putchar(','); 1636 (void) vprintf(message, args); 1637 va_end(args); 1638 lineout = 1; 1639 } 1640 1641 /* 1642 * Emit the header string when -e is specified. 1643 */ 1644 static void 1645 print_err_hdr(void) 1646 { 1647 char obuf[SMALL_SCRATCH_BUFLEN]; 1648 1649 if (do_raw) { 1650 push_out("errors"); 1651 return; 1652 } 1653 1654 if (do_conversions == 0) { 1655 if (!(do_disk & DISK_EXTENDED)) { 1656 (void) snprintf(obuf, sizeof (obuf), 1657 "%11s", one_blank); 1658 push_out(obuf); 1659 } 1660 } else if (do_disk == DISK_ERRORS) 1661 push_out(two_blanks); 1662 else 1663 push_out(one_blank); 1664 push_out("---- errors --- "); 1665 } 1666 1667 /* 1668 * Emit the header string when -e is specified. 1669 */ 1670 static void 1671 print_disk_header(void) 1672 { 1673 push_out(disk_header); 1674 } 1675 1676 /* 1677 * No, UINTMAX_MAX isn't the right thing here since 1678 * it is #defined to be either INT32_MAX or INT64_MAX 1679 * depending on the whether _LP64 is defined. 1680 * 1681 * We want to handle the odd future case of having 1682 * ulonglong_t be more than 64 bits but we have 1683 * no nice #define MAX value we can drop in place 1684 * without having to change this code in the future. 1685 */ 1686 1687 u_longlong_t 1688 ull_delta(u_longlong_t old, u_longlong_t new) 1689 { 1690 if (new >= old) 1691 return (new - old); 1692 else 1693 return ((UINT64_MAX - old) + new + 1); 1694 } 1695 1696 /* 1697 * Take the difference of an unsigned 32 1698 * bit int attempting to cater for 1699 * overflow. 1700 */ 1701 uint_t 1702 u32_delta(uint_t old, uint_t new) 1703 { 1704 if (new >= old) 1705 return (new - old); 1706 else 1707 return ((UINT32_MAX - old) + new + 1); 1708 } 1709 1710 /* 1711 * This is exactly what is needed for standard iostat output, 1712 * but make sure to use it only for that 1713 */ 1714 #define EPSILON (0.1) 1715 static int 1716 fzero(double value) 1717 { 1718 return (value >= 0.0 && value < EPSILON); 1719 } 1720 1721 static int 1722 safe_strtoi(char const *val, char *errmsg) 1723 { 1724 char *end; 1725 long tmp; 1726 1727 errno = 0; 1728 tmp = strtol(val, &end, 10); 1729 if (*end != '\0' || errno) 1730 fail(0, "%s %s", errmsg, val); 1731 return ((int)tmp); 1732 } 1733