vmstat.c revision 1.63
1 /* $NetBSD: vmstat.c,v 1.63 2006/03/18 14:58:49 dsl Exp $ */ 2 3 /*- 4 * Copyright (c) 1983, 1989, 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 #if 0 35 static char sccsid[] = "@(#)vmstat.c 8.2 (Berkeley) 1/12/94"; 36 #endif 37 __RCSID("$NetBSD: vmstat.c,v 1.63 2006/03/18 14:58:49 dsl Exp $"); 38 #endif /* not lint */ 39 40 /* 41 * Cursed vmstat -- from Robert Elz. 42 */ 43 44 #include <sys/param.h> 45 #include <sys/user.h> 46 #include <sys/namei.h> 47 #include <sys/sysctl.h> 48 #include <sys/device.h> 49 50 #include <uvm/uvm_extern.h> 51 52 #include <stdlib.h> 53 #include <string.h> 54 #include <util.h> 55 56 #include "systat.h" 57 #include "extern.h" 58 #include "dkstats.h" 59 #include "tpstats.h" 60 #include "utmpentry.h" 61 #include "vmstat.h" 62 63 static struct Info { 64 struct uvmexp_sysctl uvmexp; 65 struct vmtotal Total; 66 struct nchstats nchstats; 67 long nchcount; 68 long *intrcnt; 69 u_int64_t *evcnt; 70 } s, s1, s2, z; 71 72 enum display_mode display_mode = TIME; 73 74 static void allocinfo(struct Info *); 75 static void copyinfo(struct Info *, struct Info *); 76 static float cputime(int); 77 static void dinfo(int, int, int); 78 static void tinfo(int, int, int); 79 static void getinfo(struct Info *); 80 static int ucount(void); 81 82 static char buf[26]; 83 static u_int64_t temp; 84 double etime; 85 static float hertz; 86 static int nintr; 87 static long *intrloc; 88 static char **intrname; 89 static int nextintsrow; 90 static int disk_horiz = 1; 91 92 WINDOW * 93 openvmstat(void) 94 { 95 return (stdscr); 96 } 97 98 void 99 closevmstat(WINDOW *w) 100 { 101 102 if (w == NULL) 103 return; 104 wclear(w); 105 wrefresh(w); 106 } 107 108 109 static struct nlist namelist[] = { 110 #define X_NCHSTATS 0 111 { "_nchstats" }, 112 #define X_INTRNAMES 1 113 { "_intrnames" }, 114 #define X_EINTRNAMES 2 115 { "_eintrnames" }, 116 #define X_INTRCNT 3 117 { "_intrcnt" }, 118 #define X_EINTRCNT 4 119 { "_eintrcnt" }, 120 #define X_ALLEVENTS 5 121 { "_allevents" }, 122 { NULL } 123 }; 124 125 /* 126 * These constants define where the major pieces are laid out 127 */ 128 #define STATROW 0 /* uses 1 row and 68 cols */ 129 #define STATCOL 2 130 #define MEMROW 9 /* uses 4 rows and 31 cols */ 131 #define MEMCOL 0 132 #define PAGEROW 2 /* uses 4 rows and 26 cols */ 133 #define PAGECOL 54 134 #define INTSROW 9 /* uses all rows to bottom and 17 cols */ 135 #define INTSCOL 40 136 #define INTSCOLEND (VMSTATCOL - 0) 137 #define PROCSROW 2 /* uses 2 rows and 20 cols */ 138 #define PROCSCOL 0 139 #define GENSTATROW 2 /* uses 2 rows and 30 cols */ 140 #define GENSTATCOL 17 141 #define VMSTATROW 7 /* uses 17 rows and 15 cols */ 142 #define VMSTATCOL 64 143 #define GRAPHROW 5 /* uses 3 rows and 51 cols */ 144 #define GRAPHCOL 0 145 #define NAMEIROW 14 /* uses 3 rows and 38 cols */ 146 #define NAMEICOL 0 147 #define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ 148 #define DISKCOL 0 149 #define DISKCOLWIDTH 6 150 #define DISKCOLEND INTSCOL 151 152 typedef struct intr_evcnt intr_evcnt_t; 153 struct intr_evcnt { 154 char *ie_group; 155 char *ie_name; 156 u_int64_t *ie_count; /* kernel address... */ 157 int ie_loc; /* screen row */ 158 } *ie_head; 159 int nevcnt; 160 161 static void 162 get_interrupt_events(void) 163 { 164 struct evcntlist allevents; 165 struct evcnt evcnt, *evptr; 166 intr_evcnt_t *ie; 167 intr_evcnt_t *n; 168 169 if (!NREAD(X_ALLEVENTS, &allevents, sizeof allevents)) 170 return; 171 evptr = TAILQ_FIRST(&allevents); 172 for (; evptr != NULL; evptr = TAILQ_NEXT(&evcnt, ev_list)) { 173 if (!KREAD(evptr, &evcnt, sizeof evcnt)) 174 return; 175 if (evcnt.ev_type != EVCNT_TYPE_INTR) 176 continue; 177 n = realloc(ie_head, sizeof *ie * (nevcnt + 1)); 178 if (n == NULL) { 179 error("realloc failed"); 180 die(0); 181 } 182 ie_head = n; 183 ie = ie_head + nevcnt; 184 ie->ie_group = malloc(evcnt.ev_grouplen + 1); 185 ie->ie_name = malloc(evcnt.ev_namelen + 1); 186 if (ie->ie_group == NULL || ie->ie_name == NULL) 187 return; 188 if (!KREAD(evcnt.ev_group, ie->ie_group, evcnt.ev_grouplen + 1)) 189 return; 190 if (!KREAD(evcnt.ev_name, ie->ie_name, evcnt.ev_namelen + 1)) 191 return; 192 ie->ie_count = &evptr->ev_count; 193 ie->ie_loc = 0; 194 nevcnt++; 195 } 196 } 197 198 int 199 initvmstat(void) 200 { 201 char *intrnamebuf, *cp; 202 int i; 203 204 if (namelist[0].n_type == 0) { 205 if (kvm_nlist(kd, namelist) && 206 (namelist[X_NCHSTATS].n_type == 0 || 207 namelist[X_ALLEVENTS].n_type == 0)) { 208 nlisterr(namelist); 209 return(0); 210 } 211 if (namelist[0].n_type == 0) { 212 error("No namelist"); 213 return(0); 214 } 215 } 216 hertz = stathz ? stathz : hz; 217 if (!dkinit(1)) 218 return(0); 219 if (!tpinit(1)) 220 return(0); 221 222 /* Old style interrupt counts - deprecated */ 223 nintr = (namelist[X_EINTRCNT].n_value - 224 namelist[X_INTRCNT].n_value) / sizeof (long); 225 if (nintr) { 226 intrloc = calloc(nintr, sizeof (long)); 227 intrname = calloc(nintr, sizeof (long)); 228 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 229 namelist[X_INTRNAMES].n_value); 230 if (intrnamebuf == NULL || intrname == 0 || intrloc == 0) { 231 error("Out of memory\n"); 232 if (intrnamebuf) 233 free(intrnamebuf); 234 if (intrname) 235 free(intrname); 236 if (intrloc) 237 free(intrloc); 238 nintr = 0; 239 return(0); 240 } 241 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 242 NVAL(X_INTRNAMES)); 243 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 244 intrname[i] = cp; 245 cp += strlen(cp) + 1; 246 } 247 } 248 249 /* event counter interrupt counts */ 250 get_interrupt_events(); 251 252 nextintsrow = INTSROW + 1; 253 allocinfo(&s); 254 allocinfo(&s1); 255 allocinfo(&s2); 256 allocinfo(&z); 257 258 getinfo(&s2); 259 copyinfo(&s2, &s1); 260 return(1); 261 } 262 263 void 264 fetchvmstat(void) 265 { 266 time_t now; 267 268 time(&now); 269 strlcpy(buf, ctime(&now), sizeof(buf)); 270 buf[19] = '\0'; 271 getinfo(&s); 272 } 273 274 static void 275 print_ie_title(int i) 276 { 277 int width, name_width, group_width; 278 279 width = INTSCOLEND - (INTSCOL + 9); 280 if (width <= 0) 281 return; 282 283 move(ie_head[i].ie_loc, INTSCOL + 9); 284 group_width = strlen(ie_head[i].ie_group); 285 name_width = strlen(ie_head[i].ie_name); 286 width -= group_width + 1 + name_width; 287 if (width < 0) { 288 /* 289 * Screen to narrow for full strings 290 * This is all rather horrid, in some cases there are a lot 291 * of events in the same group, and in others the event 292 * name is "intr". There are also names which need 7 or 8 293 * columns before they become meaningful. 294 * This is a bad compromise. 295 */ 296 width = -width; 297 group_width -= (width + 1) / 2; 298 name_width -= width / 2; 299 /* some have the 'useful' name "intr", display their group */ 300 if (strcasecmp(ie_head[i].ie_name, "intr") == 0) { 301 group_width += name_width + 1; 302 name_width = 0; 303 } else { 304 if (group_width <= 3 || name_width < 0) { 305 /* don't display group */ 306 name_width += group_width + 1; 307 group_width = 0; 308 } 309 } 310 } 311 312 if (group_width != 0) { 313 printw("%-.*s", group_width, ie_head[i].ie_group); 314 if (name_width != 0) 315 printw(" "); 316 } 317 if (name_width != 0) 318 printw("%-.*s", name_width, ie_head[i].ie_name); 319 } 320 321 void 322 labelvmstat_top(void) 323 { 324 325 clear(); 326 327 mvprintw(STATROW, STATCOL + 4, "users Load"); 328 329 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 330 331 mvprintw(GRAPHROW, GRAPHCOL, 332 " . %% Sy . %% Us . %% Ni . %% In . %% Id"); 333 mvprintw(PROCSROW, PROCSCOL, "Proc:r d s w"); 334 mvprintw(GRAPHROW + 1, GRAPHCOL, 335 "| | | | | | | | | | |"); 336 337 mvprintw(PAGEROW, PAGECOL + 8, "PAGING SWAPPING "); 338 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 339 mvprintw(PAGEROW + 2, PAGECOL + 2, "ops"); 340 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 341 } 342 343 void 344 labelvmstat(void) 345 { 346 int i; 347 348 /* Top few lines first */ 349 350 labelvmstat_top(); 351 352 /* Left hand column */ 353 354 mvprintw(MEMROW, MEMCOL, " memory totals (in kB)"); 355 mvprintw(MEMROW + 1, MEMCOL, " real virtual free"); 356 mvprintw(MEMROW + 2, MEMCOL, "Active"); 357 mvprintw(MEMROW + 3, MEMCOL, "All"); 358 359 mvprintw(NAMEIROW, NAMEICOL, "Namei Sys-cache Proc-cache"); 360 mvprintw(NAMEIROW + 1, NAMEICOL, 361 " Calls hits %% hits %%"); 362 363 mvprintw(DISKROW, DISKCOL, "Disks:"); 364 if (disk_horiz) { 365 mvprintw(DISKROW + 1, DISKCOL + 1, "seeks"); 366 mvprintw(DISKROW + 2, DISKCOL + 1, "xfers"); 367 mvprintw(DISKROW + 3, DISKCOL + 1, "bytes"); 368 mvprintw(DISKROW + 4, DISKCOL + 1, "%%busy"); 369 } else { 370 mvprintw(DISKROW, DISKCOL + 1 + 1 * DISKCOLWIDTH, "seeks"); 371 mvprintw(DISKROW, DISKCOL + 1 + 2 * DISKCOLWIDTH, "xfers"); 372 mvprintw(DISKROW, DISKCOL + 1 + 3 * DISKCOLWIDTH, "bytes"); 373 mvprintw(DISKROW, DISKCOL + 1 + 4 * DISKCOLWIDTH, "%%busy"); 374 } 375 376 /* Middle column */ 377 378 mvprintw(INTSROW, INTSCOL + 9, "Interrupts"); 379 for (i = 0; i < nintr; i++) { 380 if (intrloc[i] == 0) 381 continue; 382 mvprintw(intrloc[i], INTSCOL + 9, "%-.*s", 383 INTSCOLEND - (INTSCOL + 9), intrname[i]); 384 } 385 for (i = 0; i < nevcnt; i++) { 386 if (ie_head[i].ie_loc == 0) 387 continue; 388 print_ie_title(i); 389 } 390 391 /* Right hand column */ 392 393 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "forks"); 394 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "fkppw"); 395 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "fksvm"); 396 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "pwait"); 397 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "relck"); 398 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "rlkok"); 399 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "noram"); 400 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "ndcpy"); 401 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "fltcp"); 402 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "zfod"); 403 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "cow"); 404 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "fmin"); 405 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "ftarg"); 406 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "itarg"); 407 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "wired"); 408 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "pdfre"); 409 410 if (LINES - 1 > VMSTATROW + 16) 411 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "pdscn"); 412 } 413 414 #define X(s, s1, fld) {temp = (s).fld[i]; (s).fld[i] -= (s1).fld[i]; \ 415 if (display_mode == TIME) (s1).fld[i] = temp;} 416 #define Z(s, s1, fld) {temp = (s).nchstats.fld; \ 417 (s).nchstats.fld -= (s1).nchstats.fld; \ 418 if (display_mode == TIME) (s1).nchstats.fld = temp;} 419 #define PUTRATE(s, s1, fld, l, c, w) \ 420 {temp = (s).fld; (s).fld -= (s1).fld; \ 421 if (display_mode == TIME) (s1).fld = temp; \ 422 putint((int)((float)(s).fld/etime + 0.5), l, c, w);} 423 #define MAXFAIL 5 424 425 static char cpuchar[CPUSTATES] = { '=' , '>', '-', '%', ' ' }; 426 static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_INTR, CP_IDLE }; 427 428 void 429 show_vmstat_top(vmtotal_t *Total, uvmexp_sysctl_t *uvm, uvmexp_sysctl_t *uvm1) 430 { 431 float f1, f2; 432 int psiz; 433 int i, l, c; 434 struct { 435 struct uvmexp_sysctl *uvmexp; 436 } us, us1; 437 438 us.uvmexp = uvm; 439 us1.uvmexp = uvm1; 440 441 putint(ucount(), STATROW, STATCOL, 3); 442 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 443 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 444 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 445 mvaddstr(STATROW, STATCOL + 53, buf); 446 447 putint(Total->t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 448 putint(Total->t_dw, PROCSROW + 1, PROCSCOL + 6, 3); 449 putint(Total->t_sl, PROCSROW + 1, PROCSCOL + 9, 3); 450 putint(Total->t_sw, PROCSROW + 1, PROCSCOL + 12, 3); 451 452 PUTRATE(us, us1, uvmexp->swtch, GENSTATROW + 1, GENSTATCOL - 1, 7); 453 PUTRATE(us, us1, uvmexp->traps, GENSTATROW + 1, GENSTATCOL + 6, 7); 454 PUTRATE(us, us1, uvmexp->syscalls, GENSTATROW + 1, GENSTATCOL + 13, 7); 455 PUTRATE(us, us1, uvmexp->intrs, GENSTATROW + 1, GENSTATCOL + 20, 6); 456 PUTRATE(us, us1, uvmexp->softs, GENSTATROW + 1, GENSTATCOL + 26, 6); 457 PUTRATE(us, us1, uvmexp->faults, GENSTATROW + 1, GENSTATCOL + 32, 7); 458 459 /* Last CPU state not calculated yet. */ 460 for (f2 = 0.0, psiz = 0, c = 0; c < CPUSTATES; c++) { 461 i = cpuorder[c]; 462 f1 = cputime(i); 463 f2 += f1; 464 l = (int) ((f2 + 1.0) / 2.0) - psiz; 465 if (c == 0) 466 putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0); 467 else 468 putfloat(f1, GRAPHROW, GRAPHCOL + 10 * c + 1, 5, 1, 0); 469 mvhline(GRAPHROW + 2, psiz, cpuchar[c], l); 470 psiz += l; 471 } 472 473 PUTRATE(us, us1, uvmexp->pageins, PAGEROW + 2, PAGECOL + 5, 5); 474 PUTRATE(us, us1, uvmexp->pdpageouts, PAGEROW + 2, PAGECOL + 10, 5); 475 PUTRATE(us, us1, uvmexp->swapins, PAGEROW + 2, PAGECOL + 15, 5); 476 PUTRATE(us, us1, uvmexp->swapouts, PAGEROW + 2, PAGECOL + 20, 5); 477 PUTRATE(us, us1, uvmexp->pgswapin, PAGEROW + 3, PAGECOL + 5, 5); 478 PUTRATE(us, us1, uvmexp->pgswapout, PAGEROW + 3, PAGECOL + 10, 5); 479 } 480 481 void 482 showvmstat(void) 483 { 484 int inttotal; 485 int i, l, r, c; 486 static int failcnt = 0; 487 static int relabel = 0; 488 static int last_disks = 0; 489 static char pigs[] = "pigs"; 490 491 if (relabel) { 492 labelvmstat(); 493 relabel = 0; 494 } 495 496 cpuswap(); 497 if (display_mode == TIME) { 498 dkswap(); 499 tpswap(); 500 etime = cur.cp_etime; 501 /* < 5 ticks - ignore this trash */ 502 if ((etime * hertz) < 1.0) { 503 if (failcnt++ > MAXFAIL) 504 return; 505 clear(); 506 mvprintw(2, 10, "The alternate system clock has died!"); 507 mvprintw(3, 10, "Reverting to ``pigs'' display."); 508 move(CMDLINE, 0); 509 refresh(); 510 failcnt = 0; 511 sleep(5); 512 command(pigs); 513 return; 514 } 515 } else 516 etime = 1.0; 517 518 show_vmstat_top(&s.Total, &s.uvmexp, &s1.uvmexp); 519 520 /* Memory totals */ 521 #define pgtokb(pg) ((pg) * (s.uvmexp.pagesize / 1024)) 522 putint(pgtokb(s.uvmexp.active), MEMROW + 2, MEMCOL + 6, 8); 523 putint(pgtokb(s.uvmexp.active + s.uvmexp.swpginuse), /* XXX */ 524 MEMROW + 2, MEMCOL + 15, 8); 525 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free), MEMROW + 3, MEMCOL + 6, 8); 526 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free + s.uvmexp.swpginuse), 527 MEMROW + 3, MEMCOL + 15, 8); 528 putint(pgtokb(s.uvmexp.free), MEMROW + 2, MEMCOL + 24, 8); 529 putint(pgtokb(s.uvmexp.free + s.uvmexp.swpages - s.uvmexp.swpginuse), 530 MEMROW + 3, MEMCOL + 24, 8); 531 #undef pgtokb 532 533 /* Namei cache */ 534 Z(s, s1, ncs_goodhits); Z(s, s1, ncs_badhits); Z(s, s1, ncs_miss); 535 Z(s, s1, ncs_long); Z(s, s1, ncs_pass2); Z(s, s1, ncs_2passes); 536 s.nchcount = s.nchstats.ncs_goodhits + s.nchstats.ncs_badhits + 537 s.nchstats.ncs_miss + s.nchstats.ncs_long; 538 if (display_mode == TIME) 539 s1.nchcount = s.nchcount; 540 541 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 542 putint(s.nchstats.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9); 543 #define nz(x) ((x) ? (x) : 1) 544 putfloat(s.nchstats.ncs_goodhits * 100.0 / nz(s.nchcount), 545 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 546 putint(s.nchstats.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 547 putfloat(s.nchstats.ncs_pass2 * 100.0 / nz(s.nchcount), 548 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 549 #undef nz 550 551 /* Disks */ 552 for (l = 0, i = 0, r = DISKROW, c = DISKCOL; 553 i < (dk_ndrive + tp_ndrive); i++) { 554 if (i < dk_ndrive) { 555 if (!dk_select[i]) 556 continue; 557 } else { 558 if (!tp_select[i - dk_ndrive]) 559 continue; 560 } 561 562 if (disk_horiz) 563 c += DISKCOLWIDTH; 564 else 565 r++; 566 if (c + DISKCOLWIDTH > DISKCOLEND) { 567 if (disk_horiz && LINES - 1 - DISKROW > 568 (DISKCOLEND - DISKCOL) / DISKCOLWIDTH) { 569 disk_horiz = 0; 570 relabel = 1; 571 } 572 break; 573 } 574 if (r >= LINES - 1) { 575 if (!disk_horiz && LINES - 1 - DISKROW < 576 (DISKCOLEND - DISKCOL) / DISKCOLWIDTH) { 577 disk_horiz = 1; 578 relabel = 1; 579 } 580 break; 581 } 582 l++; 583 584 if (i < dk_ndrive) 585 dinfo(i, r, c); 586 else 587 tinfo(i - dk_ndrive, r, c); 588 } 589 /* blank out if we lost any disks */ 590 for (i = l; i < last_disks; i++) { 591 int j; 592 if (disk_horiz) 593 c += DISKCOLWIDTH; 594 else 595 r++; 596 for (j = 0; j < 5; j++) { 597 if (disk_horiz) 598 mvprintw(r+j, c, "%*s", DISKCOLWIDTH, ""); 599 else 600 mvprintw(r, c+j*DISKCOLWIDTH, "%*s", DISKCOLWIDTH, ""); 601 } 602 } 603 last_disks = l; 604 605 /* Interrupts */ 606 failcnt = 0; 607 inttotal = 0; 608 for (i = 0; i < nintr; i++) { 609 if (s.intrcnt[i] == 0) 610 continue; 611 if (intrloc[i] == 0) { 612 if (nextintsrow == LINES) 613 continue; 614 intrloc[i] = nextintsrow++; 615 mvprintw(intrloc[i], INTSCOL + 9, "%-.*s", 616 INTSCOLEND - (INTSCOL + 9), intrname[i]); 617 } 618 X(s, s1, intrcnt); 619 l = (int)((float)s.intrcnt[i]/etime + 0.5); 620 inttotal += l; 621 putint(l, intrloc[i], INTSCOL, 8); 622 } 623 624 for (i = 0; i < nevcnt; i++) { 625 if (s.evcnt[i] == 0) 626 continue; 627 if (ie_head[i].ie_loc == 0) { 628 if (nextintsrow == LINES) 629 continue; 630 ie_head[i].ie_loc = nextintsrow++; 631 print_ie_title(i); 632 } 633 X(s, s1, evcnt); 634 l = (int)((float)s.evcnt[i]/etime + 0.5); 635 inttotal += l; 636 putint(l, ie_head[i].ie_loc, INTSCOL, 8); 637 } 638 putint(inttotal, INTSROW, INTSCOL, 8); 639 640 PUTRATE(s, s1, uvmexp.forks, VMSTATROW + 0, VMSTATCOL + 3, 6); 641 PUTRATE(s, s1, uvmexp.forks_ppwait, VMSTATROW + 1, VMSTATCOL + 3, 6); 642 PUTRATE(s, s1, uvmexp.forks_sharevm, VMSTATROW + 2, VMSTATCOL + 3, 6); 643 PUTRATE(s, s1, uvmexp.fltpgwait, VMSTATROW + 3, VMSTATCOL + 4, 5); 644 PUTRATE(s, s1, uvmexp.fltrelck, VMSTATROW + 4, VMSTATCOL + 3, 6); 645 PUTRATE(s, s1, uvmexp.fltrelckok, VMSTATROW + 5, VMSTATCOL + 3, 6); 646 PUTRATE(s, s1, uvmexp.fltnoram, VMSTATROW + 6, VMSTATCOL + 3, 6); 647 PUTRATE(s, s1, uvmexp.fltamcopy, VMSTATROW + 7, VMSTATCOL + 3, 6); 648 PUTRATE(s, s1, uvmexp.flt_prcopy, VMSTATROW + 8, VMSTATCOL + 3, 6); 649 PUTRATE(s, s1, uvmexp.flt_przero, VMSTATROW + 9, VMSTATCOL + 3, 6); 650 PUTRATE(s, s1, uvmexp.flt_acow, VMSTATROW + 10, VMSTATCOL, 9); 651 putint(s.uvmexp.freemin, VMSTATROW + 11, VMSTATCOL, 9); 652 putint(s.uvmexp.freetarg, VMSTATROW + 12, VMSTATCOL, 9); 653 putint(s.uvmexp.inactarg, VMSTATROW + 13, VMSTATCOL, 9); 654 putint(s.uvmexp.wired, VMSTATROW + 14, VMSTATCOL, 9); 655 PUTRATE(s, s1, uvmexp.pdfreed, VMSTATROW + 15, VMSTATCOL, 9); 656 if (LINES - 1 > VMSTATROW + 16) 657 PUTRATE(s, s1, uvmexp.pdscans, VMSTATROW + 16, VMSTATCOL, 9); 658 659 } 660 661 void 662 vmstat_boot(char *args) 663 { 664 copyinfo(&z, &s1); 665 display_mode = BOOT; 666 } 667 668 void 669 vmstat_run(char *args) 670 { 671 copyinfo(&s1, &s2); 672 display_mode = RUN; 673 } 674 675 void 676 vmstat_time(char *args) 677 { 678 display_mode = TIME; 679 } 680 681 void 682 vmstat_zero(char *args) 683 { 684 if (display_mode == RUN) 685 getinfo(&s1); 686 } 687 688 /* calculate number of users on the system */ 689 static int 690 ucount(void) 691 { 692 static int onusers = -1; 693 static struct utmpentry *oehead = NULL; 694 int nusers = 0; 695 struct utmpentry *ehead; 696 697 nusers = getutentries(NULL, &ehead); 698 if (oehead != ehead) { 699 freeutentries(oehead); 700 oehead = ehead; 701 } 702 703 if (nusers != onusers) { 704 if (nusers == 1) 705 mvprintw(STATROW, STATCOL + 8, " "); 706 else 707 mvprintw(STATROW, STATCOL + 8, "s"); 708 } 709 onusers = nusers; 710 return (nusers); 711 } 712 713 static float 714 cputime(int indx) 715 { 716 double t; 717 int i; 718 719 t = 0; 720 for (i = 0; i < CPUSTATES; i++) 721 t += cur.cp_time[i]; 722 if (t == 0.0) 723 t = 1.0; 724 return (cur.cp_time[indx] * 100.0 / t); 725 } 726 727 void 728 puthumanint(u_int64_t n, int l, int c, int w) 729 { 730 char b[128]; 731 732 if (move(l, c) != OK) 733 return; 734 if (n == 0) { 735 hline(' ', w); 736 return; 737 } 738 if (humanize_number(b, w, n, "", HN_AUTOSCALE, HN_NOSPACE) == -1 ) { 739 hline('*', w); 740 return; 741 } 742 printw("%*s", w, b); 743 } 744 745 void 746 putint(int n, int l, int c, int w) 747 { 748 char b[128]; 749 750 if (move(l, c) != OK) 751 return; 752 if (n == 0) { 753 hline(' ', w); 754 return; 755 } 756 (void)snprintf(b, sizeof b, "%*d", w, n); 757 if (strlen(b) > w) { 758 if (display_mode == TIME) 759 hline('*', w); 760 else 761 puthumanint(n, l, c, w); 762 return; 763 } 764 addstr(b); 765 } 766 767 void 768 putfloat(double f, int l, int c, int w, int d, int nz) 769 { 770 char b[128]; 771 772 if (move(l, c) != OK) 773 return; 774 if (nz && f == 0.0) { 775 hline(' ', w); 776 return; 777 } 778 (void)snprintf(b, sizeof b, "%*.*f", w, d, f); 779 if (strlen(b) > w) { 780 hline('*', w); 781 return; 782 } 783 addstr(b); 784 } 785 786 static void 787 getinfo(struct Info *stats) 788 { 789 int mib[2]; 790 size_t size; 791 int i; 792 793 cpureadstats(); 794 dkreadstats(); 795 tpreadstats(); 796 NREAD(X_NCHSTATS, &stats->nchstats, sizeof stats->nchstats); 797 if (nintr) 798 NREAD(X_INTRCNT, stats->intrcnt, nintr * LONG); 799 for (i = 0; i < nevcnt; i++) 800 KREAD(ie_head[i].ie_count, &stats->evcnt[i], 801 sizeof stats->evcnt[i]); 802 size = sizeof(stats->uvmexp); 803 mib[0] = CTL_VM; 804 mib[1] = VM_UVMEXP2; 805 if (sysctl(mib, 2, &stats->uvmexp, &size, NULL, 0) < 0) { 806 error("can't get uvmexp: %s\n", strerror(errno)); 807 memset(&stats->uvmexp, 0, sizeof(stats->uvmexp)); 808 } 809 size = sizeof(stats->Total); 810 mib[0] = CTL_VM; 811 mib[1] = VM_METER; 812 if (sysctl(mib, 2, &stats->Total, &size, NULL, 0) < 0) { 813 error("Can't get kernel info: %s\n", strerror(errno)); 814 memset(&stats->Total, 0, sizeof(stats->Total)); 815 } 816 } 817 818 static void 819 allocinfo(struct Info *stats) 820 { 821 822 if (nintr && 823 (stats->intrcnt = calloc(nintr, sizeof(long))) == NULL) { 824 error("calloc failed"); 825 die(0); 826 } 827 if ((stats->evcnt = calloc(nevcnt, sizeof(u_int64_t))) == NULL) { 828 error("calloc failed"); 829 die(0); 830 } 831 } 832 833 static void 834 copyinfo(struct Info *from, struct Info *to) 835 { 836 long *intrcnt; 837 u_int64_t *evcnt; 838 839 intrcnt = to->intrcnt; 840 evcnt = to->evcnt; 841 *to = *from; 842 memmove(to->intrcnt = intrcnt, from->intrcnt, nintr * sizeof *intrcnt); 843 memmove(to->evcnt = evcnt, from->evcnt, nevcnt * sizeof *evcnt); 844 } 845 846 static void 847 dinfo(int dn, int r, int c) 848 { 849 double atime; 850 #define ADV if (disk_horiz) r++; else c += DISKCOLWIDTH 851 852 mvprintw(r, c, "%*.*s", DISKCOLWIDTH, DISKCOLWIDTH, dr_name[dn]); 853 ADV; 854 855 putint((int)(cur.dk_seek[dn]/etime+0.5), r, c, DISKCOLWIDTH); 856 ADV; 857 putint((int)((cur.dk_rxfer[dn]+cur.dk_wxfer[dn])/etime+0.5), 858 r, c, DISKCOLWIDTH); 859 ADV; 860 puthumanint((cur.dk_rbytes[dn] + cur.dk_wbytes[dn]) / etime + 0.5, 861 r, c, DISKCOLWIDTH); 862 ADV; 863 864 /* time busy in disk activity */ 865 atime = cur.dk_time[dn].tv_sec + cur.dk_time[dn].tv_usec / 1000000.0; 866 atime = atime * 100.0 / etime; 867 if (atime >= 100) 868 putint(100, r, c, DISKCOLWIDTH); 869 else 870 putfloat(atime, r, c, DISKCOLWIDTH, 1, 1); 871 } 872 873 static void 874 tinfo(int dn, int r, int c) 875 { 876 double atime; 877 878 mvprintw(r, c, "%*.*s", DISKCOLWIDTH, DISKCOLWIDTH, tp_name[dn]); 879 ADV; 880 ADV; /* skip over the seeks column - not relevant for tape drives */ 881 882 putint((int)((cur_tape.rxfer[dn]+cur_tape.wxfer[dn])/etime+0.5), 883 r, c, DISKCOLWIDTH); 884 ADV; 885 puthumanint((cur_tape.rbytes[dn] + cur_tape.wbytes[dn]) / etime + 0.5, 886 r, c, DISKCOLWIDTH); 887 ADV; 888 889 /* time busy in disk activity */ 890 atime = cur_tape.time[dn].tv_sec + cur_tape.time[dn].tv_usec / 1000000.0; 891 atime = atime * 100.0 / etime; 892 if (atime >= 100) 893 putint(100, r, c, DISKCOLWIDTH); 894 else 895 putfloat(atime, r, c, DISKCOLWIDTH, 1, 1); 896 #undef ADV 897 } 898 899 900
Indexes created Thu Sep 25 16:09:42 GMT 2025