vmstat.c revision 1.64
1 /* $NetBSD: vmstat.c,v 1.64 2006/03/20 20:36:38 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 1.64 2006/03/20 20:36:38 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 static char *intrnamebuf; 202 char *cp; 203 int i; 204 205 if (intrnamebuf) 206 free(intrnamebuf); 207 if (intrname) 208 free(intrname); 209 if (intrloc) 210 free(intrloc); 211 212 if (namelist[0].n_type == 0) { 213 if (kvm_nlist(kd, namelist) && 214 (namelist[X_NCHSTATS].n_type == 0 || 215 namelist[X_ALLEVENTS].n_type == 0)) { 216 nlisterr(namelist); 217 return(0); 218 } 219 if (namelist[0].n_type == 0) { 220 error("No namelist"); 221 return(0); 222 } 223 } 224 hertz = stathz ? stathz : hz; 225 if (!dkinit(1)) 226 return(0); 227 if (!tpinit(1)) 228 return(0); 229 230 /* Old style interrupt counts - deprecated */ 231 nintr = (namelist[X_EINTRCNT].n_value - 232 namelist[X_INTRCNT].n_value) / sizeof (long); 233 if (nintr) { 234 intrloc = calloc(nintr, sizeof (long)); 235 intrname = calloc(nintr, sizeof (long)); 236 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 237 namelist[X_INTRNAMES].n_value); 238 if (intrnamebuf == NULL || intrname == 0 || intrloc == 0) { 239 error("Out of memory\n"); 240 nintr = 0; 241 return(0); 242 } 243 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 244 NVAL(X_INTRNAMES)); 245 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 246 intrname[i] = cp; 247 cp += strlen(cp) + 1; 248 } 249 } 250 251 /* event counter interrupt counts */ 252 get_interrupt_events(); 253 254 nextintsrow = INTSROW + 1; 255 allocinfo(&s); 256 allocinfo(&s1); 257 allocinfo(&s2); 258 allocinfo(&z); 259 260 getinfo(&s2); 261 copyinfo(&s2, &s1); 262 return(1); 263 } 264 265 void 266 fetchvmstat(void) 267 { 268 time_t now; 269 270 time(&now); 271 strlcpy(buf, ctime(&now), sizeof(buf)); 272 buf[19] = '\0'; 273 getinfo(&s); 274 } 275 276 static void 277 print_ie_title(int i) 278 { 279 int width, name_width, group_width; 280 281 width = INTSCOLEND - (INTSCOL + 9); 282 if (width <= 0) 283 return; 284 285 move(ie_head[i].ie_loc, INTSCOL + 9); 286 group_width = strlen(ie_head[i].ie_group); 287 name_width = strlen(ie_head[i].ie_name); 288 width -= group_width + 1 + name_width; 289 if (width < 0) { 290 /* 291 * Screen to narrow for full strings 292 * This is all rather horrid, in some cases there are a lot 293 * of events in the same group, and in others the event 294 * name is "intr". There are also names which need 7 or 8 295 * columns before they become meaningful. 296 * This is a bad compromise. 297 */ 298 width = -width; 299 group_width -= (width + 1) / 2; 300 name_width -= width / 2; 301 /* some have the 'useful' name "intr", display their group */ 302 if (strcasecmp(ie_head[i].ie_name, "intr") == 0) { 303 group_width += name_width + 1; 304 name_width = 0; 305 } else { 306 if (group_width <= 3 || name_width < 0) { 307 /* don't display group */ 308 name_width += group_width + 1; 309 group_width = 0; 310 } 311 } 312 } 313 314 if (group_width != 0) { 315 printw("%-.*s", group_width, ie_head[i].ie_group); 316 if (name_width != 0) 317 printw(" "); 318 } 319 if (name_width != 0) 320 printw("%-.*s", name_width, ie_head[i].ie_name); 321 } 322 323 void 324 labelvmstat_top(void) 325 { 326 327 clear(); 328 329 mvprintw(STATROW, STATCOL + 4, "users Load"); 330 331 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 332 333 mvprintw(GRAPHROW, GRAPHCOL, 334 " . %% Sy . %% Us . %% Ni . %% In . %% Id"); 335 mvprintw(PROCSROW, PROCSCOL, "Proc:r d s w"); 336 mvprintw(GRAPHROW + 1, GRAPHCOL, 337 "| | | | | | | | | | |"); 338 339 mvprintw(PAGEROW, PAGECOL + 8, "PAGING SWAPPING "); 340 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 341 mvprintw(PAGEROW + 2, PAGECOL + 2, "ops"); 342 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 343 } 344 345 void 346 labelvmstat(void) 347 { 348 int i; 349 350 /* Top few lines first */ 351 352 labelvmstat_top(); 353 354 /* Left hand column */ 355 356 mvprintw(MEMROW, MEMCOL, " memory totals (in kB)"); 357 mvprintw(MEMROW + 1, MEMCOL, " real virtual free"); 358 mvprintw(MEMROW + 2, MEMCOL, "Active"); 359 mvprintw(MEMROW + 3, MEMCOL, "All"); 360 361 mvprintw(NAMEIROW, NAMEICOL, "Namei Sys-cache Proc-cache"); 362 mvprintw(NAMEIROW + 1, NAMEICOL, 363 " Calls hits %% hits %%"); 364 365 mvprintw(DISKROW, DISKCOL, "Disks:"); 366 if (disk_horiz) { 367 mvprintw(DISKROW + 1, DISKCOL + 1, "seeks"); 368 mvprintw(DISKROW + 2, DISKCOL + 1, "xfers"); 369 mvprintw(DISKROW + 3, DISKCOL + 1, "bytes"); 370 mvprintw(DISKROW + 4, DISKCOL + 1, "%%busy"); 371 } else { 372 mvprintw(DISKROW, DISKCOL + 1 + 1 * DISKCOLWIDTH, "seeks"); 373 mvprintw(DISKROW, DISKCOL + 1 + 2 * DISKCOLWIDTH, "xfers"); 374 mvprintw(DISKROW, DISKCOL + 1 + 3 * DISKCOLWIDTH, "bytes"); 375 mvprintw(DISKROW, DISKCOL + 1 + 4 * DISKCOLWIDTH, "%%busy"); 376 } 377 378 /* Middle column */ 379 380 mvprintw(INTSROW, INTSCOL + 9, "Interrupts"); 381 for (i = 0; i < nintr; i++) { 382 if (intrloc[i] == 0) 383 continue; 384 mvprintw(intrloc[i], INTSCOL + 9, "%-.*s", 385 INTSCOLEND - (INTSCOL + 9), intrname[i]); 386 } 387 for (i = 0; i < nevcnt; i++) { 388 if (ie_head[i].ie_loc == 0) 389 continue; 390 print_ie_title(i); 391 } 392 393 /* Right hand column */ 394 395 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "forks"); 396 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "fkppw"); 397 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "fksvm"); 398 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "pwait"); 399 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "relck"); 400 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "rlkok"); 401 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "noram"); 402 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "ndcpy"); 403 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "fltcp"); 404 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "zfod"); 405 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "cow"); 406 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "fmin"); 407 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "ftarg"); 408 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "itarg"); 409 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "wired"); 410 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "pdfre"); 411 412 if (LINES - 1 > VMSTATROW + 16) 413 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "pdscn"); 414 } 415 416 #define X(s, s1, fld) {temp = (s).fld[i]; (s).fld[i] -= (s1).fld[i]; \ 417 if (display_mode == TIME) (s1).fld[i] = temp;} 418 #define Z(s, s1, fld) {temp = (s).nchstats.fld; \ 419 (s).nchstats.fld -= (s1).nchstats.fld; \ 420 if (display_mode == TIME) (s1).nchstats.fld = temp;} 421 #define PUTRATE(s, s1, fld, l, c, w) \ 422 {temp = (s).fld; (s).fld -= (s1).fld; \ 423 if (display_mode == TIME) (s1).fld = temp; \ 424 putint((int)((float)(s).fld/etime + 0.5), l, c, w);} 425 #define MAXFAIL 5 426 427 static char cpuchar[CPUSTATES] = { '=' , '>', '-', '%', ' ' }; 428 static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_INTR, CP_IDLE }; 429 430 void 431 show_vmstat_top(vmtotal_t *Total, uvmexp_sysctl_t *uvm, uvmexp_sysctl_t *uvm1) 432 { 433 float f1, f2; 434 int psiz; 435 int i, l, c; 436 struct { 437 struct uvmexp_sysctl *uvmexp; 438 } us, us1; 439 440 us.uvmexp = uvm; 441 us1.uvmexp = uvm1; 442 443 putint(ucount(), STATROW, STATCOL, 3); 444 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 445 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 446 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 447 mvaddstr(STATROW, STATCOL + 53, buf); 448 449 putint(Total->t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 450 putint(Total->t_dw, PROCSROW + 1, PROCSCOL + 6, 3); 451 putint(Total->t_sl, PROCSROW + 1, PROCSCOL + 9, 3); 452 putint(Total->t_sw, PROCSROW + 1, PROCSCOL + 12, 3); 453 454 PUTRATE(us, us1, uvmexp->swtch, GENSTATROW + 1, GENSTATCOL - 1, 7); 455 PUTRATE(us, us1, uvmexp->traps, GENSTATROW + 1, GENSTATCOL + 6, 7); 456 PUTRATE(us, us1, uvmexp->syscalls, GENSTATROW + 1, GENSTATCOL + 13, 7); 457 PUTRATE(us, us1, uvmexp->intrs, GENSTATROW + 1, GENSTATCOL + 20, 6); 458 PUTRATE(us, us1, uvmexp->softs, GENSTATROW + 1, GENSTATCOL + 26, 6); 459 PUTRATE(us, us1, uvmexp->faults, GENSTATROW + 1, GENSTATCOL + 32, 7); 460 461 /* Last CPU state not calculated yet. */ 462 for (f2 = 0.0, psiz = 0, c = 0; c < CPUSTATES; c++) { 463 i = cpuorder[c]; 464 f1 = cputime(i); 465 f2 += f1; 466 l = (int) ((f2 + 1.0) / 2.0) - psiz; 467 if (c == 0) 468 putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0); 469 else 470 putfloat(f1, GRAPHROW, GRAPHCOL + 10 * c + 1, 5, 1, 0); 471 mvhline(GRAPHROW + 2, psiz, cpuchar[c], l); 472 psiz += l; 473 } 474 475 PUTRATE(us, us1, uvmexp->pageins, PAGEROW + 2, PAGECOL + 5, 5); 476 PUTRATE(us, us1, uvmexp->pdpageouts, PAGEROW + 2, PAGECOL + 10, 5); 477 PUTRATE(us, us1, uvmexp->swapins, PAGEROW + 2, PAGECOL + 15, 5); 478 PUTRATE(us, us1, uvmexp->swapouts, PAGEROW + 2, PAGECOL + 20, 5); 479 PUTRATE(us, us1, uvmexp->pgswapin, PAGEROW + 3, PAGECOL + 5, 5); 480 PUTRATE(us, us1, uvmexp->pgswapout, PAGEROW + 3, PAGECOL + 10, 5); 481 } 482 483 void 484 showvmstat(void) 485 { 486 int inttotal; 487 int i, l, r, c; 488 static int failcnt = 0; 489 static int relabel = 0; 490 static int last_disks = 0; 491 static char pigs[] = "pigs"; 492 493 if (relabel) { 494 labelvmstat(); 495 relabel = 0; 496 } 497 498 cpuswap(); 499 if (display_mode == TIME) { 500 dkswap(); 501 tpswap(); 502 etime = cur.cp_etime; 503 /* < 5 ticks - ignore this trash */ 504 if ((etime * hertz) < 1.0) { 505 if (failcnt++ > MAXFAIL) 506 return; 507 clear(); 508 mvprintw(2, 10, "The alternate system clock has died!"); 509 mvprintw(3, 10, "Reverting to ``pigs'' display."); 510 move(CMDLINE, 0); 511 refresh(); 512 failcnt = 0; 513 sleep(5); 514 command(pigs); 515 return; 516 } 517 } else 518 etime = 1.0; 519 520 show_vmstat_top(&s.Total, &s.uvmexp, &s1.uvmexp); 521 522 /* Memory totals */ 523 #define pgtokb(pg) ((pg) * (s.uvmexp.pagesize / 1024)) 524 putint(pgtokb(s.uvmexp.active), MEMROW + 2, MEMCOL + 6, 8); 525 putint(pgtokb(s.uvmexp.active + s.uvmexp.swpginuse), /* XXX */ 526 MEMROW + 2, MEMCOL + 15, 8); 527 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free), MEMROW + 3, MEMCOL + 6, 8); 528 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free + s.uvmexp.swpginuse), 529 MEMROW + 3, MEMCOL + 15, 8); 530 putint(pgtokb(s.uvmexp.free), MEMROW + 2, MEMCOL + 24, 8); 531 putint(pgtokb(s.uvmexp.free + s.uvmexp.swpages - s.uvmexp.swpginuse), 532 MEMROW + 3, MEMCOL + 24, 8); 533 #undef pgtokb 534 535 /* Namei cache */ 536 Z(s, s1, ncs_goodhits); Z(s, s1, ncs_badhits); Z(s, s1, ncs_miss); 537 Z(s, s1, ncs_long); Z(s, s1, ncs_pass2); Z(s, s1, ncs_2passes); 538 s.nchcount = s.nchstats.ncs_goodhits + s.nchstats.ncs_badhits + 539 s.nchstats.ncs_miss + s.nchstats.ncs_long; 540 if (display_mode == TIME) 541 s1.nchcount = s.nchcount; 542 543 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 544 putint(s.nchstats.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9); 545 #define nz(x) ((x) ? (x) : 1) 546 putfloat(s.nchstats.ncs_goodhits * 100.0 / nz(s.nchcount), 547 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 548 putint(s.nchstats.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 549 putfloat(s.nchstats.ncs_pass2 * 100.0 / nz(s.nchcount), 550 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 551 #undef nz 552 553 /* Disks */ 554 for (l = 0, i = 0, r = DISKROW, c = DISKCOL; 555 i < (dk_ndrive + tp_ndrive); i++) { 556 if (i < dk_ndrive) { 557 if (!dk_select[i]) 558 continue; 559 } else { 560 if (!tp_select[i - dk_ndrive]) 561 continue; 562 } 563 564 if (disk_horiz) 565 c += DISKCOLWIDTH; 566 else 567 r++; 568 if (c + DISKCOLWIDTH > DISKCOLEND) { 569 if (disk_horiz && LINES - 1 - DISKROW > 570 (DISKCOLEND - DISKCOL) / DISKCOLWIDTH) { 571 disk_horiz = 0; 572 relabel = 1; 573 } 574 break; 575 } 576 if (r >= LINES - 1) { 577 if (!disk_horiz && LINES - 1 - DISKROW < 578 (DISKCOLEND - DISKCOL) / DISKCOLWIDTH) { 579 disk_horiz = 1; 580 relabel = 1; 581 } 582 break; 583 } 584 l++; 585 586 if (i < dk_ndrive) 587 dinfo(i, r, c); 588 else 589 tinfo(i - dk_ndrive, r, c); 590 } 591 /* blank out if we lost any disks */ 592 for (i = l; i < last_disks; i++) { 593 int j; 594 if (disk_horiz) 595 c += DISKCOLWIDTH; 596 else 597 r++; 598 for (j = 0; j < 5; j++) { 599 if (disk_horiz) 600 mvprintw(r+j, c, "%*s", DISKCOLWIDTH, ""); 601 else 602 mvprintw(r, c+j*DISKCOLWIDTH, "%*s", DISKCOLWIDTH, ""); 603 } 604 } 605 last_disks = l; 606 607 /* Interrupts */ 608 failcnt = 0; 609 inttotal = 0; 610 for (i = 0; i < nintr; i++) { 611 if (s.intrcnt[i] == 0) 612 continue; 613 if (intrloc[i] == 0) { 614 if (nextintsrow == LINES) 615 continue; 616 intrloc[i] = nextintsrow++; 617 mvprintw(intrloc[i], INTSCOL + 9, "%-.*s", 618 INTSCOLEND - (INTSCOL + 9), intrname[i]); 619 } 620 X(s, s1, intrcnt); 621 l = (int)((float)s.intrcnt[i]/etime + 0.5); 622 inttotal += l; 623 putint(l, intrloc[i], INTSCOL, 8); 624 } 625 626 for (i = 0; i < nevcnt; i++) { 627 if (s.evcnt[i] == 0) 628 continue; 629 if (ie_head[i].ie_loc == 0) { 630 if (nextintsrow == LINES) 631 continue; 632 ie_head[i].ie_loc = nextintsrow++; 633 print_ie_title(i); 634 } 635 X(s, s1, evcnt); 636 l = (int)((float)s.evcnt[i]/etime + 0.5); 637 inttotal += l; 638 putint(l, ie_head[i].ie_loc, INTSCOL, 8); 639 } 640 putint(inttotal, INTSROW, INTSCOL, 8); 641 642 PUTRATE(s, s1, uvmexp.forks, VMSTATROW + 0, VMSTATCOL + 3, 6); 643 PUTRATE(s, s1, uvmexp.forks_ppwait, VMSTATROW + 1, VMSTATCOL + 3, 6); 644 PUTRATE(s, s1, uvmexp.forks_sharevm, VMSTATROW + 2, VMSTATCOL + 3, 6); 645 PUTRATE(s, s1, uvmexp.fltpgwait, VMSTATROW + 3, VMSTATCOL + 4, 5); 646 PUTRATE(s, s1, uvmexp.fltrelck, VMSTATROW + 4, VMSTATCOL + 3, 6); 647 PUTRATE(s, s1, uvmexp.fltrelckok, VMSTATROW + 5, VMSTATCOL + 3, 6); 648 PUTRATE(s, s1, uvmexp.fltnoram, VMSTATROW + 6, VMSTATCOL + 3, 6); 649 PUTRATE(s, s1, uvmexp.fltamcopy, VMSTATROW + 7, VMSTATCOL + 3, 6); 650 PUTRATE(s, s1, uvmexp.flt_prcopy, VMSTATROW + 8, VMSTATCOL + 3, 6); 651 PUTRATE(s, s1, uvmexp.flt_przero, VMSTATROW + 9, VMSTATCOL + 3, 6); 652 PUTRATE(s, s1, uvmexp.flt_acow, VMSTATROW + 10, VMSTATCOL, 9); 653 putint(s.uvmexp.freemin, VMSTATROW + 11, VMSTATCOL, 9); 654 putint(s.uvmexp.freetarg, VMSTATROW + 12, VMSTATCOL, 9); 655 putint(s.uvmexp.inactarg, VMSTATROW + 13, VMSTATCOL, 9); 656 putint(s.uvmexp.wired, VMSTATROW + 14, VMSTATCOL, 9); 657 PUTRATE(s, s1, uvmexp.pdfreed, VMSTATROW + 15, VMSTATCOL, 9); 658 if (LINES - 1 > VMSTATROW + 16) 659 PUTRATE(s, s1, uvmexp.pdscans, VMSTATROW + 16, VMSTATCOL, 9); 660 661 } 662 663 void 664 vmstat_boot(char *args) 665 { 666 copyinfo(&z, &s1); 667 display_mode = BOOT; 668 } 669 670 void 671 vmstat_run(char *args) 672 { 673 copyinfo(&s1, &s2); 674 display_mode = RUN; 675 } 676 677 void 678 vmstat_time(char *args) 679 { 680 display_mode = TIME; 681 } 682 683 void 684 vmstat_zero(char *args) 685 { 686 if (display_mode == RUN) 687 getinfo(&s1); 688 } 689 690 /* calculate number of users on the system */ 691 static int 692 ucount(void) 693 { 694 static int onusers = -1; 695 static struct utmpentry *oehead = NULL; 696 int nusers = 0; 697 struct utmpentry *ehead; 698 699 nusers = getutentries(NULL, &ehead); 700 if (oehead != ehead) { 701 freeutentries(oehead); 702 oehead = ehead; 703 } 704 705 if (nusers != onusers) { 706 if (nusers == 1) 707 mvprintw(STATROW, STATCOL + 8, " "); 708 else 709 mvprintw(STATROW, STATCOL + 8, "s"); 710 } 711 onusers = nusers; 712 return (nusers); 713 } 714 715 static float 716 cputime(int indx) 717 { 718 double t; 719 int i; 720 721 t = 0; 722 for (i = 0; i < CPUSTATES; i++) 723 t += cur.cp_time[i]; 724 if (t == 0.0) 725 t = 1.0; 726 return (cur.cp_time[indx] * 100.0 / t); 727 } 728 729 void 730 puthumanint(u_int64_t n, int l, int c, int w) 731 { 732 char b[128]; 733 734 if (move(l, c) != OK) 735 return; 736 if (n == 0) { 737 hline(' ', w); 738 return; 739 } 740 if (humanize_number(b, w, n, "", HN_AUTOSCALE, HN_NOSPACE) == -1 ) { 741 hline('*', w); 742 return; 743 } 744 printw("%*s", w, b); 745 } 746 747 void 748 putint(int n, int l, int c, int w) 749 { 750 char b[128]; 751 752 if (move(l, c) != OK) 753 return; 754 if (n == 0) { 755 hline(' ', w); 756 return; 757 } 758 (void)snprintf(b, sizeof b, "%*d", w, n); 759 if (strlen(b) > w) { 760 if (display_mode == TIME) 761 hline('*', w); 762 else 763 puthumanint(n, l, c, w); 764 return; 765 } 766 addstr(b); 767 } 768 769 void 770 putfloat(double f, int l, int c, int w, int d, int nz) 771 { 772 char b[128]; 773 774 if (move(l, c) != OK) 775 return; 776 if (nz && f == 0.0) { 777 hline(' ', w); 778 return; 779 } 780 (void)snprintf(b, sizeof b, "%*.*f", w, d, f); 781 if (strlen(b) > w) { 782 hline('*', w); 783 return; 784 } 785 addstr(b); 786 } 787 788 static void 789 getinfo(struct Info *stats) 790 { 791 int mib[2]; 792 size_t size; 793 int i; 794 795 cpureadstats(); 796 dkreadstats(); 797 tpreadstats(); 798 NREAD(X_NCHSTATS, &stats->nchstats, sizeof stats->nchstats); 799 if (nintr) 800 NREAD(X_INTRCNT, stats->intrcnt, nintr * LONG); 801 for (i = 0; i < nevcnt; i++) 802 KREAD(ie_head[i].ie_count, &stats->evcnt[i], 803 sizeof stats->evcnt[i]); 804 size = sizeof(stats->uvmexp); 805 mib[0] = CTL_VM; 806 mib[1] = VM_UVMEXP2; 807 if (sysctl(mib, 2, &stats->uvmexp, &size, NULL, 0) < 0) { 808 error("can't get uvmexp: %s\n", strerror(errno)); 809 memset(&stats->uvmexp, 0, sizeof(stats->uvmexp)); 810 } 811 size = sizeof(stats->Total); 812 mib[0] = CTL_VM; 813 mib[1] = VM_METER; 814 if (sysctl(mib, 2, &stats->Total, &size, NULL, 0) < 0) { 815 error("Can't get kernel info: %s\n", strerror(errno)); 816 memset(&stats->Total, 0, sizeof(stats->Total)); 817 } 818 } 819 820 static void 821 allocinfo(struct Info *stats) 822 { 823 824 if (nintr && 825 (stats->intrcnt = calloc(nintr, sizeof(long))) == NULL) { 826 error("calloc failed"); 827 die(0); 828 } 829 if ((stats->evcnt = calloc(nevcnt, sizeof(u_int64_t))) == NULL) { 830 error("calloc failed"); 831 die(0); 832 } 833 } 834 835 static void 836 copyinfo(struct Info *from, struct Info *to) 837 { 838 long *intrcnt; 839 u_int64_t *evcnt; 840 841 intrcnt = to->intrcnt; 842 evcnt = to->evcnt; 843 *to = *from; 844 memmove(to->intrcnt = intrcnt, from->intrcnt, nintr * sizeof *intrcnt); 845 memmove(to->evcnt = evcnt, from->evcnt, nevcnt * sizeof *evcnt); 846 } 847 848 static void 849 dinfo(int dn, int r, int c) 850 { 851 double atime; 852 #define ADV if (disk_horiz) r++; else c += DISKCOLWIDTH 853 854 mvprintw(r, c, "%*.*s", DISKCOLWIDTH, DISKCOLWIDTH, dr_name[dn]); 855 ADV; 856 857 putint((int)(cur.dk_seek[dn]/etime+0.5), r, c, DISKCOLWIDTH); 858 ADV; 859 putint((int)((cur.dk_rxfer[dn]+cur.dk_wxfer[dn])/etime+0.5), 860 r, c, DISKCOLWIDTH); 861 ADV; 862 puthumanint((cur.dk_rbytes[dn] + cur.dk_wbytes[dn]) / etime + 0.5, 863 r, c, DISKCOLWIDTH); 864 ADV; 865 866 /* time busy in disk activity */ 867 atime = cur.dk_time[dn].tv_sec + cur.dk_time[dn].tv_usec / 1000000.0; 868 atime = atime * 100.0 / etime; 869 if (atime >= 100) 870 putint(100, r, c, DISKCOLWIDTH); 871 else 872 putfloat(atime, r, c, DISKCOLWIDTH, 1, 1); 873 } 874 875 static void 876 tinfo(int dn, int r, int c) 877 { 878 double atime; 879 880 mvprintw(r, c, "%*.*s", DISKCOLWIDTH, DISKCOLWIDTH, tp_name[dn]); 881 ADV; 882 ADV; /* skip over the seeks column - not relevant for tape drives */ 883 884 putint((int)((cur_tape.rxfer[dn]+cur_tape.wxfer[dn])/etime+0.5), 885 r, c, DISKCOLWIDTH); 886 ADV; 887 puthumanint((cur_tape.rbytes[dn] + cur_tape.wbytes[dn]) / etime + 0.5, 888 r, c, DISKCOLWIDTH); 889 ADV; 890 891 /* time busy in disk activity */ 892 atime = cur_tape.time[dn].tv_sec + cur_tape.time[dn].tv_usec / 1000000.0; 893 atime = atime * 100.0 / etime; 894 if (atime >= 100) 895 putint(100, r, c, DISKCOLWIDTH); 896 else 897 putfloat(atime, r, c, DISKCOLWIDTH, 1, 1); 898 #undef ADV 899 } 900 901 902
Indexes created Mon Sep 22 10:09:38 GMT 2025