vmstat.c revision 1.65
1 /* $NetBSD: vmstat.c,v 1.65 2006/04/14 13:14:06 blymn 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 1.65 2006/04/14 13:14:06 blymn 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 "drvstats.h" 59 #include "utmpentry.h" 60 #include "vmstat.h" 61 62 static struct Info { 63 struct uvmexp_sysctl uvmexp; 64 struct vmtotal Total; 65 struct nchstats nchstats; 66 long nchcount; 67 long *intrcnt; 68 u_int64_t *evcnt; 69 } s, s1, s2, z; 70 71 enum display_mode display_mode = TIME; 72 73 static void allocinfo(struct Info *); 74 static void copyinfo(struct Info *, struct Info *); 75 static float cputime(int); 76 static void dinfo(int, int, int); 77 static void getinfo(struct Info *); 78 static int ucount(void); 79 80 static char buf[26]; 81 static u_int64_t temp; 82 double etime; 83 static float hertz; 84 static int nintr; 85 static long *intrloc; 86 static char **intrname; 87 static int nextintsrow; 88 static int disk_horiz = 1; 89 90 WINDOW * 91 openvmstat(void) 92 { 93 return (stdscr); 94 } 95 96 void 97 closevmstat(WINDOW *w) 98 { 99 100 if (w == NULL) 101 return; 102 wclear(w); 103 wrefresh(w); 104 } 105 106 107 static struct nlist namelist[] = { 108 #define X_NCHSTATS 0 109 { "_nchstats" }, 110 #define X_INTRNAMES 1 111 { "_intrnames" }, 112 #define X_EINTRNAMES 2 113 { "_eintrnames" }, 114 #define X_INTRCNT 3 115 { "_intrcnt" }, 116 #define X_EINTRCNT 4 117 { "_eintrcnt" }, 118 #define X_ALLEVENTS 5 119 { "_allevents" }, 120 { NULL } 121 }; 122 123 /* 124 * These constants define where the major pieces are laid out 125 */ 126 #define STATROW 0 /* uses 1 row and 68 cols */ 127 #define STATCOL 2 128 #define MEMROW 9 /* uses 4 rows and 31 cols */ 129 #define MEMCOL 0 130 #define PAGEROW 2 /* uses 4 rows and 26 cols */ 131 #define PAGECOL 54 132 #define INTSROW 9 /* uses all rows to bottom and 17 cols */ 133 #define INTSCOL 40 134 #define INTSCOLEND (VMSTATCOL - 0) 135 #define PROCSROW 2 /* uses 2 rows and 20 cols */ 136 #define PROCSCOL 0 137 #define GENSTATROW 2 /* uses 2 rows and 30 cols */ 138 #define GENSTATCOL 17 139 #define VMSTATROW 7 /* uses 17 rows and 15 cols */ 140 #define VMSTATCOL 64 141 #define GRAPHROW 5 /* uses 3 rows and 51 cols */ 142 #define GRAPHCOL 0 143 #define NAMEIROW 14 /* uses 3 rows and 38 cols */ 144 #define NAMEICOL 0 145 #define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ 146 #define DISKCOL 0 147 #define DISKCOLWIDTH 6 148 #define DISKCOLEND INTSCOL 149 150 typedef struct intr_evcnt intr_evcnt_t; 151 struct intr_evcnt { 152 char *ie_group; 153 char *ie_name; 154 u_int64_t *ie_count; /* kernel address... */ 155 int ie_loc; /* screen row */ 156 } *ie_head; 157 int nevcnt; 158 159 static void 160 get_interrupt_events(void) 161 { 162 struct evcntlist allevents; 163 struct evcnt evcnt, *evptr; 164 intr_evcnt_t *ie; 165 intr_evcnt_t *n; 166 167 if (!NREAD(X_ALLEVENTS, &allevents, sizeof allevents)) 168 return; 169 evptr = TAILQ_FIRST(&allevents); 170 for (; evptr != NULL; evptr = TAILQ_NEXT(&evcnt, ev_list)) { 171 if (!KREAD(evptr, &evcnt, sizeof evcnt)) 172 return; 173 if (evcnt.ev_type != EVCNT_TYPE_INTR) 174 continue; 175 n = realloc(ie_head, sizeof *ie * (nevcnt + 1)); 176 if (n == NULL) { 177 error("realloc failed"); 178 die(0); 179 } 180 ie_head = n; 181 ie = ie_head + nevcnt; 182 ie->ie_group = malloc(evcnt.ev_grouplen + 1); 183 ie->ie_name = malloc(evcnt.ev_namelen + 1); 184 if (ie->ie_group == NULL || ie->ie_name == NULL) 185 return; 186 if (!KREAD(evcnt.ev_group, ie->ie_group, evcnt.ev_grouplen + 1)) 187 return; 188 if (!KREAD(evcnt.ev_name, ie->ie_name, evcnt.ev_namelen + 1)) 189 return; 190 ie->ie_count = &evptr->ev_count; 191 ie->ie_loc = 0; 192 nevcnt++; 193 } 194 } 195 196 int 197 initvmstat(void) 198 { 199 static char *intrnamebuf; 200 char *cp; 201 int i; 202 203 if (intrnamebuf) 204 free(intrnamebuf); 205 if (intrname) 206 free(intrname); 207 if (intrloc) 208 free(intrloc); 209 210 if (namelist[0].n_type == 0) { 211 if (kvm_nlist(kd, namelist) && 212 (namelist[X_NCHSTATS].n_type == 0 || 213 namelist[X_ALLEVENTS].n_type == 0)) { 214 nlisterr(namelist); 215 return(0); 216 } 217 if (namelist[0].n_type == 0) { 218 error("No namelist"); 219 return(0); 220 } 221 } 222 hertz = stathz ? stathz : hz; 223 if (!drvinit(1)) 224 return(0); 225 226 /* Old style interrupt counts - deprecated */ 227 nintr = (namelist[X_EINTRCNT].n_value - 228 namelist[X_INTRCNT].n_value) / sizeof (long); 229 if (nintr) { 230 intrloc = calloc(nintr, sizeof (long)); 231 intrname = calloc(nintr, sizeof (long)); 232 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 233 namelist[X_INTRNAMES].n_value); 234 if (intrnamebuf == NULL || intrname == 0 || intrloc == 0) { 235 error("Out of memory\n"); 236 nintr = 0; 237 return(0); 238 } 239 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 240 NVAL(X_INTRNAMES)); 241 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 242 intrname[i] = cp; 243 cp += strlen(cp) + 1; 244 } 245 } 246 247 /* event counter interrupt counts */ 248 get_interrupt_events(); 249 250 nextintsrow = INTSROW + 1; 251 allocinfo(&s); 252 allocinfo(&s1); 253 allocinfo(&s2); 254 allocinfo(&z); 255 256 getinfo(&s2); 257 copyinfo(&s2, &s1); 258 return(1); 259 } 260 261 void 262 fetchvmstat(void) 263 { 264 time_t now; 265 266 time(&now); 267 strlcpy(buf, ctime(&now), sizeof(buf)); 268 buf[19] = '\0'; 269 getinfo(&s); 270 } 271 272 static void 273 print_ie_title(int i) 274 { 275 int width, name_width, group_width; 276 277 width = INTSCOLEND - (INTSCOL + 9); 278 if (width <= 0) 279 return; 280 281 move(ie_head[i].ie_loc, INTSCOL + 9); 282 group_width = strlen(ie_head[i].ie_group); 283 name_width = strlen(ie_head[i].ie_name); 284 width -= group_width + 1 + name_width; 285 if (width < 0) { 286 /* 287 * Screen to narrow for full strings 288 * This is all rather horrid, in some cases there are a lot 289 * of events in the same group, and in others the event 290 * name is "intr". There are also names which need 7 or 8 291 * columns before they become meaningful. 292 * This is a bad compromise. 293 */ 294 width = -width; 295 group_width -= (width + 1) / 2; 296 name_width -= width / 2; 297 /* some have the 'useful' name "intr", display their group */ 298 if (strcasecmp(ie_head[i].ie_name, "intr") == 0) { 299 group_width += name_width + 1; 300 name_width = 0; 301 } else { 302 if (group_width <= 3 || name_width < 0) { 303 /* don't display group */ 304 name_width += group_width + 1; 305 group_width = 0; 306 } 307 } 308 } 309 310 if (group_width != 0) { 311 printw("%-.*s", group_width, ie_head[i].ie_group); 312 if (name_width != 0) 313 printw(" "); 314 } 315 if (name_width != 0) 316 printw("%-.*s", name_width, ie_head[i].ie_name); 317 } 318 319 void 320 labelvmstat_top(void) 321 { 322 323 clear(); 324 325 mvprintw(STATROW, STATCOL + 4, "users Load"); 326 327 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 328 329 mvprintw(GRAPHROW, GRAPHCOL, 330 " . %% Sy . %% Us . %% Ni . %% In . %% Id"); 331 mvprintw(PROCSROW, PROCSCOL, "Proc:r d s w"); 332 mvprintw(GRAPHROW + 1, GRAPHCOL, 333 "| | | | | | | | | | |"); 334 335 mvprintw(PAGEROW, PAGECOL + 8, "PAGING SWAPPING "); 336 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 337 mvprintw(PAGEROW + 2, PAGECOL + 2, "ops"); 338 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 339 } 340 341 void 342 labelvmstat(void) 343 { 344 int i; 345 346 /* Top few lines first */ 347 348 labelvmstat_top(); 349 350 /* Left hand column */ 351 352 mvprintw(MEMROW, MEMCOL, " memory totals (in kB)"); 353 mvprintw(MEMROW + 1, MEMCOL, " real virtual free"); 354 mvprintw(MEMROW + 2, MEMCOL, "Active"); 355 mvprintw(MEMROW + 3, MEMCOL, "All"); 356 357 mvprintw(NAMEIROW, NAMEICOL, "Namei Sys-cache Proc-cache"); 358 mvprintw(NAMEIROW + 1, NAMEICOL, 359 " Calls hits %% hits %%"); 360 361 mvprintw(DISKROW, DISKCOL, "Disks:"); 362 if (disk_horiz) { 363 mvprintw(DISKROW + 1, DISKCOL + 1, "seeks"); 364 mvprintw(DISKROW + 2, DISKCOL + 1, "xfers"); 365 mvprintw(DISKROW + 3, DISKCOL + 1, "bytes"); 366 mvprintw(DISKROW + 4, DISKCOL + 1, "%%busy"); 367 } else { 368 mvprintw(DISKROW, DISKCOL + 1 + 1 * DISKCOLWIDTH, "seeks"); 369 mvprintw(DISKROW, DISKCOL + 1 + 2 * DISKCOLWIDTH, "xfers"); 370 mvprintw(DISKROW, DISKCOL + 1 + 3 * DISKCOLWIDTH, "bytes"); 371 mvprintw(DISKROW, DISKCOL + 1 + 4 * DISKCOLWIDTH, "%%busy"); 372 } 373 374 /* Middle column */ 375 376 mvprintw(INTSROW, INTSCOL + 9, "Interrupts"); 377 for (i = 0; i < nintr; i++) { 378 if (intrloc[i] == 0) 379 continue; 380 mvprintw(intrloc[i], INTSCOL + 9, "%-.*s", 381 INTSCOLEND - (INTSCOL + 9), intrname[i]); 382 } 383 for (i = 0; i < nevcnt; i++) { 384 if (ie_head[i].ie_loc == 0) 385 continue; 386 print_ie_title(i); 387 } 388 389 /* Right hand column */ 390 391 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "forks"); 392 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "fkppw"); 393 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "fksvm"); 394 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "pwait"); 395 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "relck"); 396 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "rlkok"); 397 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "noram"); 398 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "ndcpy"); 399 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "fltcp"); 400 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "zfod"); 401 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "cow"); 402 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "fmin"); 403 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "ftarg"); 404 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "itarg"); 405 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "wired"); 406 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "pdfre"); 407 408 if (LINES - 1 > VMSTATROW + 16) 409 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "pdscn"); 410 } 411 412 #define X(s, s1, fld) {temp = (s).fld[i]; (s).fld[i] -= (s1).fld[i]; \ 413 if (display_mode == TIME) (s1).fld[i] = temp;} 414 #define Z(s, s1, fld) {temp = (s).nchstats.fld; \ 415 (s).nchstats.fld -= (s1).nchstats.fld; \ 416 if (display_mode == TIME) (s1).nchstats.fld = temp;} 417 #define PUTRATE(s, s1, fld, l, c, w) \ 418 {temp = (s).fld; (s).fld -= (s1).fld; \ 419 if (display_mode == TIME) (s1).fld = temp; \ 420 putint((int)((float)(s).fld/etime + 0.5), l, c, w);} 421 #define MAXFAIL 5 422 423 static char cpuchar[CPUSTATES] = { '=' , '>', '-', '%', ' ' }; 424 static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_INTR, CP_IDLE }; 425 426 void 427 show_vmstat_top(vmtotal_t *Total, uvmexp_sysctl_t *uvm, uvmexp_sysctl_t *uvm1) 428 { 429 float f1, f2; 430 int psiz; 431 int i, l, c; 432 struct { 433 struct uvmexp_sysctl *uvmexp; 434 } us, us1; 435 436 us.uvmexp = uvm; 437 us1.uvmexp = uvm1; 438 439 putint(ucount(), STATROW, STATCOL, 3); 440 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 441 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 442 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 443 mvaddstr(STATROW, STATCOL + 53, buf); 444 445 putint(Total->t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 446 putint(Total->t_dw, PROCSROW + 1, PROCSCOL + 6, 3); 447 putint(Total->t_sl, PROCSROW + 1, PROCSCOL + 9, 3); 448 putint(Total->t_sw, PROCSROW + 1, PROCSCOL + 12, 3); 449 450 PUTRATE(us, us1, uvmexp->swtch, GENSTATROW + 1, GENSTATCOL - 1, 7); 451 PUTRATE(us, us1, uvmexp->traps, GENSTATROW + 1, GENSTATCOL + 6, 7); 452 PUTRATE(us, us1, uvmexp->syscalls, GENSTATROW + 1, GENSTATCOL + 13, 7); 453 PUTRATE(us, us1, uvmexp->intrs, GENSTATROW + 1, GENSTATCOL + 20, 6); 454 PUTRATE(us, us1, uvmexp->softs, GENSTATROW + 1, GENSTATCOL + 26, 6); 455 PUTRATE(us, us1, uvmexp->faults, GENSTATROW + 1, GENSTATCOL + 32, 7); 456 457 /* Last CPU state not calculated yet. */ 458 for (f2 = 0.0, psiz = 0, c = 0; c < CPUSTATES; c++) { 459 i = cpuorder[c]; 460 f1 = cputime(i); 461 f2 += f1; 462 l = (int) ((f2 + 1.0) / 2.0) - psiz; 463 if (c == 0) 464 putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0); 465 else 466 putfloat(f1, GRAPHROW, GRAPHCOL + 10 * c + 1, 5, 1, 0); 467 mvhline(GRAPHROW + 2, psiz, cpuchar[c], l); 468 psiz += l; 469 } 470 471 PUTRATE(us, us1, uvmexp->pageins, PAGEROW + 2, PAGECOL + 5, 5); 472 PUTRATE(us, us1, uvmexp->pdpageouts, PAGEROW + 2, PAGECOL + 10, 5); 473 PUTRATE(us, us1, uvmexp->swapins, PAGEROW + 2, PAGECOL + 15, 5); 474 PUTRATE(us, us1, uvmexp->swapouts, PAGEROW + 2, PAGECOL + 20, 5); 475 PUTRATE(us, us1, uvmexp->pgswapin, PAGEROW + 3, PAGECOL + 5, 5); 476 PUTRATE(us, us1, uvmexp->pgswapout, PAGEROW + 3, PAGECOL + 10, 5); 477 } 478 479 void 480 showvmstat(void) 481 { 482 int inttotal; 483 int i, l, r, c; 484 static int failcnt = 0; 485 static int relabel = 0; 486 static int last_disks = 0; 487 static char pigs[] = "pigs"; 488 489 if (relabel) { 490 labelvmstat(); 491 relabel = 0; 492 } 493 494 cpuswap(); 495 if (display_mode == TIME) { 496 drvswap(); 497 etime = cur.cp_etime; 498 /* < 5 ticks - ignore this trash */ 499 if ((etime * hertz) < 1.0) { 500 if (failcnt++ > MAXFAIL) 501 return; 502 clear(); 503 mvprintw(2, 10, "The alternate system clock has died!"); 504 mvprintw(3, 10, "Reverting to ``pigs'' display."); 505 move(CMDLINE, 0); 506 refresh(); 507 failcnt = 0; 508 sleep(5); 509 command(pigs); 510 return; 511 } 512 } else 513 etime = 1.0; 514 515 show_vmstat_top(&s.Total, &s.uvmexp, &s1.uvmexp); 516 517 /* Memory totals */ 518 #define pgtokb(pg) ((pg) * (s.uvmexp.pagesize / 1024)) 519 putint(pgtokb(s.uvmexp.active), MEMROW + 2, MEMCOL + 6, 8); 520 putint(pgtokb(s.uvmexp.active + s.uvmexp.swpginuse), /* XXX */ 521 MEMROW + 2, MEMCOL + 15, 8); 522 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free), MEMROW + 3, MEMCOL + 6, 8); 523 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free + s.uvmexp.swpginuse), 524 MEMROW + 3, MEMCOL + 15, 8); 525 putint(pgtokb(s.uvmexp.free), MEMROW + 2, MEMCOL + 24, 8); 526 putint(pgtokb(s.uvmexp.free + s.uvmexp.swpages - s.uvmexp.swpginuse), 527 MEMROW + 3, MEMCOL + 24, 8); 528 #undef pgtokb 529 530 /* Namei cache */ 531 Z(s, s1, ncs_goodhits); Z(s, s1, ncs_badhits); Z(s, s1, ncs_miss); 532 Z(s, s1, ncs_long); Z(s, s1, ncs_pass2); Z(s, s1, ncs_2passes); 533 s.nchcount = s.nchstats.ncs_goodhits + s.nchstats.ncs_badhits + 534 s.nchstats.ncs_miss + s.nchstats.ncs_long; 535 if (display_mode == TIME) 536 s1.nchcount = s.nchcount; 537 538 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 539 putint(s.nchstats.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9); 540 #define nz(x) ((x) ? (x) : 1) 541 putfloat(s.nchstats.ncs_goodhits * 100.0 / nz(s.nchcount), 542 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 543 putint(s.nchstats.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 544 putfloat(s.nchstats.ncs_pass2 * 100.0 / nz(s.nchcount), 545 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 546 #undef nz 547 548 /* Disks */ 549 for (l = 0, i = 0, r = DISKROW, c = DISKCOL; 550 i < ndrive; i++) { 551 if (!drv_select[i]) 552 continue; 553 554 if (disk_horiz) 555 c += DISKCOLWIDTH; 556 else 557 r++; 558 if (c + DISKCOLWIDTH > DISKCOLEND) { 559 if (disk_horiz && LINES - 1 - DISKROW > 560 (DISKCOLEND - DISKCOL) / DISKCOLWIDTH) { 561 disk_horiz = 0; 562 relabel = 1; 563 } 564 break; 565 } 566 if (r >= LINES - 1) { 567 if (!disk_horiz && LINES - 1 - DISKROW < 568 (DISKCOLEND - DISKCOL) / DISKCOLWIDTH) { 569 disk_horiz = 1; 570 relabel = 1; 571 } 572 break; 573 } 574 l++; 575 576 dinfo(i, r, c); 577 } 578 /* blank out if we lost any disks */ 579 for (i = l; i < last_disks; i++) { 580 int j; 581 if (disk_horiz) 582 c += DISKCOLWIDTH; 583 else 584 r++; 585 for (j = 0; j < 5; j++) { 586 if (disk_horiz) 587 mvprintw(r+j, c, "%*s", DISKCOLWIDTH, ""); 588 else 589 mvprintw(r, c+j*DISKCOLWIDTH, "%*s", DISKCOLWIDTH, ""); 590 } 591 } 592 last_disks = l; 593 594 /* Interrupts */ 595 failcnt = 0; 596 inttotal = 0; 597 for (i = 0; i < nintr; i++) { 598 if (s.intrcnt[i] == 0) 599 continue; 600 if (intrloc[i] == 0) { 601 if (nextintsrow == LINES) 602 continue; 603 intrloc[i] = nextintsrow++; 604 mvprintw(intrloc[i], INTSCOL + 9, "%-.*s", 605 INTSCOLEND - (INTSCOL + 9), intrname[i]); 606 } 607 X(s, s1, intrcnt); 608 l = (int)((float)s.intrcnt[i]/etime + 0.5); 609 inttotal += l; 610 putint(l, intrloc[i], INTSCOL, 8); 611 } 612 613 for (i = 0; i < nevcnt; i++) { 614 if (s.evcnt[i] == 0) 615 continue; 616 if (ie_head[i].ie_loc == 0) { 617 if (nextintsrow == LINES) 618 continue; 619 ie_head[i].ie_loc = nextintsrow++; 620 print_ie_title(i); 621 } 622 X(s, s1, evcnt); 623 l = (int)((float)s.evcnt[i]/etime + 0.5); 624 inttotal += l; 625 putint(l, ie_head[i].ie_loc, INTSCOL, 8); 626 } 627 putint(inttotal, INTSROW, INTSCOL, 8); 628 629 PUTRATE(s, s1, uvmexp.forks, VMSTATROW + 0, VMSTATCOL + 3, 6); 630 PUTRATE(s, s1, uvmexp.forks_ppwait, VMSTATROW + 1, VMSTATCOL + 3, 6); 631 PUTRATE(s, s1, uvmexp.forks_sharevm, VMSTATROW + 2, VMSTATCOL + 3, 6); 632 PUTRATE(s, s1, uvmexp.fltpgwait, VMSTATROW + 3, VMSTATCOL + 4, 5); 633 PUTRATE(s, s1, uvmexp.fltrelck, VMSTATROW + 4, VMSTATCOL + 3, 6); 634 PUTRATE(s, s1, uvmexp.fltrelckok, VMSTATROW + 5, VMSTATCOL + 3, 6); 635 PUTRATE(s, s1, uvmexp.fltnoram, VMSTATROW + 6, VMSTATCOL + 3, 6); 636 PUTRATE(s, s1, uvmexp.fltamcopy, VMSTATROW + 7, VMSTATCOL + 3, 6); 637 PUTRATE(s, s1, uvmexp.flt_prcopy, VMSTATROW + 8, VMSTATCOL + 3, 6); 638 PUTRATE(s, s1, uvmexp.flt_przero, VMSTATROW + 9, VMSTATCOL + 3, 6); 639 PUTRATE(s, s1, uvmexp.flt_acow, VMSTATROW + 10, VMSTATCOL, 9); 640 putint(s.uvmexp.freemin, VMSTATROW + 11, VMSTATCOL, 9); 641 putint(s.uvmexp.freetarg, VMSTATROW + 12, VMSTATCOL, 9); 642 putint(s.uvmexp.inactarg, VMSTATROW + 13, VMSTATCOL, 9); 643 putint(s.uvmexp.wired, VMSTATROW + 14, VMSTATCOL, 9); 644 PUTRATE(s, s1, uvmexp.pdfreed, VMSTATROW + 15, VMSTATCOL, 9); 645 if (LINES - 1 > VMSTATROW + 16) 646 PUTRATE(s, s1, uvmexp.pdscans, VMSTATROW + 16, VMSTATCOL, 9); 647 648 } 649 650 void 651 vmstat_boot(char *args) 652 { 653 copyinfo(&z, &s1); 654 display_mode = BOOT; 655 } 656 657 void 658 vmstat_run(char *args) 659 { 660 copyinfo(&s1, &s2); 661 display_mode = RUN; 662 } 663 664 void 665 vmstat_time(char *args) 666 { 667 display_mode = TIME; 668 } 669 670 void 671 vmstat_zero(char *args) 672 { 673 if (display_mode == RUN) 674 getinfo(&s1); 675 } 676 677 /* calculate number of users on the system */ 678 static int 679 ucount(void) 680 { 681 static int onusers = -1; 682 static struct utmpentry *oehead = NULL; 683 int nusers = 0; 684 struct utmpentry *ehead; 685 686 nusers = getutentries(NULL, &ehead); 687 if (oehead != ehead) { 688 freeutentries(oehead); 689 oehead = ehead; 690 } 691 692 if (nusers != onusers) { 693 if (nusers == 1) 694 mvprintw(STATROW, STATCOL + 8, " "); 695 else 696 mvprintw(STATROW, STATCOL + 8, "s"); 697 } 698 onusers = nusers; 699 return (nusers); 700 } 701 702 static float 703 cputime(int indx) 704 { 705 double t; 706 int i; 707 708 t = 0; 709 for (i = 0; i < CPUSTATES; i++) 710 t += cur.cp_time[i]; 711 if (t == 0.0) 712 t = 1.0; 713 return (cur.cp_time[indx] * 100.0 / t); 714 } 715 716 void 717 puthumanint(u_int64_t n, int l, int c, int w) 718 { 719 char b[128]; 720 721 if (move(l, c) != OK) 722 return; 723 if (n == 0) { 724 hline(' ', w); 725 return; 726 } 727 if (humanize_number(b, w, n, "", HN_AUTOSCALE, HN_NOSPACE) == -1 ) { 728 hline('*', w); 729 return; 730 } 731 printw("%*s", w, b); 732 } 733 734 void 735 putint(int n, int l, int c, int w) 736 { 737 char b[128]; 738 739 if (move(l, c) != OK) 740 return; 741 if (n == 0) { 742 hline(' ', w); 743 return; 744 } 745 (void)snprintf(b, sizeof b, "%*d", w, n); 746 if (strlen(b) > w) { 747 if (display_mode == TIME) 748 hline('*', w); 749 else 750 puthumanint(n, l, c, w); 751 return; 752 } 753 addstr(b); 754 } 755 756 void 757 putfloat(double f, int l, int c, int w, int d, int nz) 758 { 759 char b[128]; 760 761 if (move(l, c) != OK) 762 return; 763 if (nz && f == 0.0) { 764 hline(' ', w); 765 return; 766 } 767 (void)snprintf(b, sizeof b, "%*.*f", w, d, f); 768 if (strlen(b) > w) { 769 hline('*', w); 770 return; 771 } 772 addstr(b); 773 } 774 775 static void 776 getinfo(struct Info *stats) 777 { 778 int mib[2]; 779 size_t size; 780 int i; 781 782 cpureadstats(); 783 drvreadstats(); 784 NREAD(X_NCHSTATS, &stats->nchstats, sizeof stats->nchstats); 785 if (nintr) 786 NREAD(X_INTRCNT, stats->intrcnt, nintr * LONG); 787 for (i = 0; i < nevcnt; i++) 788 KREAD(ie_head[i].ie_count, &stats->evcnt[i], 789 sizeof stats->evcnt[i]); 790 size = sizeof(stats->uvmexp); 791 mib[0] = CTL_VM; 792 mib[1] = VM_UVMEXP2; 793 if (sysctl(mib, 2, &stats->uvmexp, &size, NULL, 0) < 0) { 794 error("can't get uvmexp: %s\n", strerror(errno)); 795 memset(&stats->uvmexp, 0, sizeof(stats->uvmexp)); 796 } 797 size = sizeof(stats->Total); 798 mib[0] = CTL_VM; 799 mib[1] = VM_METER; 800 if (sysctl(mib, 2, &stats->Total, &size, NULL, 0) < 0) { 801 error("Can't get kernel info: %s\n", strerror(errno)); 802 memset(&stats->Total, 0, sizeof(stats->Total)); 803 } 804 } 805 806 static void 807 allocinfo(struct Info *stats) 808 { 809 810 if (nintr && 811 (stats->intrcnt = calloc(nintr, sizeof(long))) == NULL) { 812 error("calloc failed"); 813 die(0); 814 } 815 if ((stats->evcnt = calloc(nevcnt, sizeof(u_int64_t))) == NULL) { 816 error("calloc failed"); 817 die(0); 818 } 819 } 820 821 static void 822 copyinfo(struct Info *from, struct Info *to) 823 { 824 long *intrcnt; 825 u_int64_t *evcnt; 826 827 intrcnt = to->intrcnt; 828 evcnt = to->evcnt; 829 *to = *from; 830 memmove(to->intrcnt = intrcnt, from->intrcnt, nintr * sizeof *intrcnt); 831 memmove(to->evcnt = evcnt, from->evcnt, nevcnt * sizeof *evcnt); 832 } 833 834 static void 835 dinfo(int dn, int r, int c) 836 { 837 double atime; 838 #define ADV if (disk_horiz) r++; else c += DISKCOLWIDTH 839 840 mvprintw(r, c, "%*.*s", DISKCOLWIDTH, DISKCOLWIDTH, dr_name[dn]); 841 ADV; 842 843 putint((int)(cur.seek[dn]/etime+0.5), r, c, DISKCOLWIDTH); 844 ADV; 845 putint((int)((cur.rxfer[dn]+cur.wxfer[dn])/etime+0.5), 846 r, c, DISKCOLWIDTH); 847 ADV; 848 puthumanint((cur.rbytes[dn] + cur.wbytes[dn]) / etime + 0.5, 849 r, c, DISKCOLWIDTH); 850 ADV; 851 852 /* time busy in disk activity */ 853 atime = cur.time[dn].tv_sec + cur.time[dn].tv_usec / 1000000.0; 854 atime = atime * 100.0 / etime; 855 if (atime >= 100) 856 putint(100, r, c, DISKCOLWIDTH); 857 else 858 putfloat(atime, r, c, DISKCOLWIDTH, 1, 1); 859 } 860
Indexes created Mon Sep 22 13:09:51 GMT 2025