vmstat.c revision 1.79
1 /* $NetBSD: vmstat.c,v 1.79 2014/06/14 20:10:42 joerg 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 1.79 2014/06/14 20:10:42 joerg Exp $"); 38 #endif /* not lint */ 39 40 /* 41 * Cursed vmstat -- from Robert Elz. 42 */ 43 44 #include <sys/param.h> 45 #include <sys/uio.h> 46 #include <sys/namei.h> 47 #include <sys/sysctl.h> 48 #include <sys/evcnt.h> 49 50 #include <uvm/uvm_extern.h> 51 52 #include <errno.h> 53 #include <stdlib.h> 54 #include <string.h> 55 #include <util.h> 56 57 #include "systat.h" 58 #include "extern.h" 59 #include "drvstats.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_sysctl 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 getinfo(struct Info *); 79 static int ucount(void); 80 81 static char buf[26]; 82 static u_int64_t temp; 83 double etime; 84 static float hertz; 85 static int nintr; 86 static long *intrloc; 87 static char **intrname; 88 static int nextintsrow; 89 static int disk_horiz = 1; 90 91 WINDOW * 92 openvmstat(void) 93 { 94 return (stdscr); 95 } 96 97 void 98 closevmstat(WINDOW *w) 99 { 100 101 if (w == NULL) 102 return; 103 wclear(w); 104 wrefresh(w); 105 } 106 107 108 static struct nlist namelist[] = { 109 #define X_INTRNAMES 0 110 { .n_name = "_intrnames" }, 111 #define X_EINTRNAMES 1 112 { .n_name = "_eintrnames" }, 113 #define X_INTRCNT 2 114 { .n_name = "_intrcnt" }, 115 #define X_EINTRCNT 3 116 { .n_name = "_eintrcnt" }, 117 #define X_ALLEVENTS 4 118 { .n_name = "_allevents" }, 119 { .n_name = NULL } 120 }; 121 122 /* 123 * These constants define where the major pieces are laid out 124 */ 125 #define STATROW 0 /* uses 1 row and 68 cols */ 126 #define STATCOL 2 127 #define MEMROW 9 /* uses 4 rows and 31 cols */ 128 #define MEMCOL 0 129 #define PAGEROW 2 /* uses 4 rows and 26 cols */ 130 #define PAGECOL 54 131 #define INTSROW 9 /* uses all rows to bottom and 17 cols */ 132 #define INTSCOL 40 133 #define INTSCOLEND (VMSTATCOL - 0) 134 #define PROCSROW 2 /* uses 2 rows and 20 cols */ 135 #define PROCSCOL 0 136 #define GENSTATROW 2 /* uses 2 rows and 30 cols */ 137 #define GENSTATCOL 17 138 #define VMSTATROW 7 /* uses 17 rows and 15 cols */ 139 #define VMSTATCOL 64 140 #define GRAPHROW 5 /* uses 3 rows and 51 cols */ 141 #define GRAPHCOL 0 142 #define NAMEIROW 14 /* uses 3 rows and 38 cols */ 143 #define NAMEICOL 0 144 #define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ 145 #define DISKCOL 0 146 #define DISKCOLWIDTH 6 147 #define DISKCOLEND INTSCOL 148 149 typedef struct intr_evcnt intr_evcnt_t; 150 struct intr_evcnt { 151 char *ie_group; 152 char *ie_name; 153 u_int64_t *ie_count; /* kernel address... */ 154 int ie_loc; /* screen row */ 155 } *ie_head; 156 int nevcnt; 157 158 static void 159 get_interrupt_events(void) 160 { 161 struct evcntlist allevents; 162 struct evcnt evcnt, *evptr; 163 intr_evcnt_t *ie; 164 intr_evcnt_t *n; 165 166 if (!NREAD(X_ALLEVENTS, &allevents, sizeof allevents)) 167 return; 168 evptr = TAILQ_FIRST(&allevents); 169 for (; evptr != NULL; evptr = TAILQ_NEXT(&evcnt, ev_list)) { 170 if (!KREAD(evptr, &evcnt, sizeof evcnt)) 171 return; 172 if (evcnt.ev_type != EVCNT_TYPE_INTR) 173 continue; 174 n = realloc(ie_head, sizeof *ie * (nevcnt + 1)); 175 if (n == NULL) { 176 error("realloc failed"); 177 die(0); 178 } 179 ie_head = n; 180 ie = ie_head + nevcnt; 181 ie->ie_group = malloc(evcnt.ev_grouplen + 1); 182 ie->ie_name = malloc(evcnt.ev_namelen + 1); 183 if (ie->ie_group == NULL || ie->ie_name == NULL) 184 return; 185 if (!KREAD(evcnt.ev_group, ie->ie_group, evcnt.ev_grouplen + 1)) 186 return; 187 if (!KREAD(evcnt.ev_name, ie->ie_name, evcnt.ev_namelen + 1)) 188 return; 189 ie->ie_count = &evptr->ev_count; 190 ie->ie_loc = 0; 191 nevcnt++; 192 } 193 } 194 195 int 196 initvmstat(void) 197 { 198 static char *intrnamebuf; 199 char *cp; 200 int i; 201 202 if (intrnamebuf) 203 free(intrnamebuf); 204 if (intrname) 205 free(intrname); 206 if (intrloc) 207 free(intrloc); 208 209 if (namelist[0].n_type == 0) { 210 if (kvm_nlist(kd, namelist) && 211 namelist[X_ALLEVENTS].n_type == 0) { 212 nlisterr(namelist); 213 return(0); 214 } 215 if (namelist[0].n_type == 0) { 216 error("No namelist"); 217 return(0); 218 } 219 } 220 hertz = stathz ? stathz : hz; 221 if (!drvinit(1)) 222 return(0); 223 224 /* Old style interrupt counts - deprecated */ 225 nintr = (namelist[X_EINTRCNT].n_value - 226 namelist[X_INTRCNT].n_value) / sizeof (long); 227 if (nintr) { 228 intrloc = calloc(nintr, sizeof (long)); 229 intrname = calloc(nintr, sizeof (long)); 230 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 231 namelist[X_INTRNAMES].n_value); 232 if (intrnamebuf == NULL || intrname == 0 || intrloc == 0) { 233 error("Out of memory\n"); 234 nintr = 0; 235 return(0); 236 } 237 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 238 NVAL(X_INTRNAMES)); 239 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 240 intrname[i] = cp; 241 cp += strlen(cp) + 1; 242 } 243 } 244 245 /* event counter interrupt counts */ 246 get_interrupt_events(); 247 248 nextintsrow = INTSROW + 1; 249 allocinfo(&s); 250 allocinfo(&s1); 251 allocinfo(&s2); 252 allocinfo(&z); 253 254 getinfo(&s2); 255 copyinfo(&s2, &s1); 256 return(1); 257 } 258 259 void 260 fetchvmstat(void) 261 { 262 time_t now; 263 264 time(&now); 265 strlcpy(buf, ctime(&now), sizeof(buf)); 266 buf[19] = '\0'; 267 getinfo(&s); 268 } 269 270 static void 271 print_ie_title(int i) 272 { 273 int width, name_width, group_width; 274 275 width = INTSCOLEND - (INTSCOL + 9); 276 if (width <= 0) 277 return; 278 279 move(ie_head[i].ie_loc, INTSCOL + 9); 280 group_width = strlen(ie_head[i].ie_group); 281 name_width = strlen(ie_head[i].ie_name); 282 width -= group_width + 1 + name_width; 283 if (width < 0) { 284 /* 285 * Screen to narrow for full strings 286 * This is all rather horrid, in some cases there are a lot 287 * of events in the same group, and in others the event 288 * name is "intr". There are also names which need 7 or 8 289 * columns before they become meaningful. 290 * This is a bad compromise. 291 */ 292 width = -width; 293 group_width -= (width + 1) / 2; 294 name_width -= width / 2; 295 /* some have the 'useful' name "intr", display their group */ 296 if (strcasecmp(ie_head[i].ie_name, "intr") == 0) { 297 group_width += name_width + 1; 298 name_width = 0; 299 } else { 300 if (group_width <= 3 || name_width < 0) { 301 /* don't display group */ 302 name_width += group_width + 1; 303 group_width = 0; 304 } 305 } 306 } 307 308 if (group_width != 0) { 309 printw("%-.*s", group_width, ie_head[i].ie_group); 310 if (name_width != 0) 311 printw(" "); 312 } 313 if (name_width != 0) 314 printw("%-.*s", name_width, ie_head[i].ie_name); 315 } 316 317 void 318 labelvmstat_top(void) 319 { 320 321 clear(); 322 323 mvprintw(STATROW, STATCOL + 4, "users Load"); 324 325 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 326 327 mvprintw(GRAPHROW, GRAPHCOL, 328 " . %% Sy . %% Us . %% Ni . %% In . %% Id"); 329 mvprintw(PROCSROW, PROCSCOL, "Proc:r d s"); 330 mvprintw(GRAPHROW + 1, GRAPHCOL, 331 "| | | | | | | | | | |"); 332 333 mvprintw(PAGEROW, PAGECOL + 8, "PAGING SWAPPING "); 334 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 335 mvprintw(PAGEROW + 2, PAGECOL + 2, "ops"); 336 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 337 } 338 339 void 340 labelvmstat(void) 341 { 342 int i; 343 344 /* Top few lines first */ 345 346 labelvmstat_top(); 347 348 /* Left hand column */ 349 350 mvprintw(MEMROW, MEMCOL, " memory totals (in kB)"); 351 mvprintw(MEMROW + 1, MEMCOL, " real virtual free"); 352 mvprintw(MEMROW + 2, MEMCOL, "Active"); 353 mvprintw(MEMROW + 3, MEMCOL, "All"); 354 355 mvprintw(NAMEIROW, NAMEICOL, "Namei Sys-cache Proc-cache"); 356 mvprintw(NAMEIROW + 1, NAMEICOL, 357 " Calls hits %% hits %%"); 358 359 mvprintw(DISKROW, DISKCOL, "Disks:"); 360 if (disk_horiz) { 361 mvprintw(DISKROW + 1, DISKCOL + 1, "seeks"); 362 mvprintw(DISKROW + 2, DISKCOL + 1, "xfers"); 363 mvprintw(DISKROW + 3, DISKCOL + 1, "bytes"); 364 mvprintw(DISKROW + 4, DISKCOL + 1, "%%busy"); 365 } else { 366 mvprintw(DISKROW, DISKCOL + 1 + 1 * DISKCOLWIDTH, "seeks"); 367 mvprintw(DISKROW, DISKCOL + 1 + 2 * DISKCOLWIDTH, "xfers"); 368 mvprintw(DISKROW, DISKCOL + 1 + 3 * DISKCOLWIDTH, "bytes"); 369 mvprintw(DISKROW, DISKCOL + 1 + 4 * DISKCOLWIDTH, "%%busy"); 370 } 371 372 /* Middle column */ 373 374 mvprintw(INTSROW, INTSCOL + 9, "Interrupts"); 375 for (i = 0; i < nintr; i++) { 376 if (intrloc[i] == 0) 377 continue; 378 mvprintw(intrloc[i], INTSCOL + 9, "%-.*s", 379 INTSCOLEND - (INTSCOL + 9), intrname[i]); 380 } 381 for (i = 0; i < nevcnt; i++) { 382 if (ie_head[i].ie_loc == 0) 383 continue; 384 print_ie_title(i); 385 } 386 387 /* Right hand column */ 388 389 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "forks"); 390 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "fkppw"); 391 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "fksvm"); 392 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "pwait"); 393 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "relck"); 394 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "rlkok"); 395 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "noram"); 396 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "ndcpy"); 397 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "fltcp"); 398 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "zfod"); 399 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "cow"); 400 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "fmin"); 401 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "ftarg"); 402 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "itarg"); 403 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "wired"); 404 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "pdfre"); 405 406 if (LINES - 1 > VMSTATROW + 16) 407 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "pdscn"); 408 } 409 410 #define X(s, s1, fld) {temp = (s).fld[i]; (s).fld[i] -= (s1).fld[i]; \ 411 if (display_mode == TIME) (s1).fld[i] = temp;} 412 #define Z(s, s1, fld) {temp = (s).nchstats.fld; \ 413 (s).nchstats.fld -= (s1).nchstats.fld; \ 414 if (display_mode == TIME) (s1).nchstats.fld = temp;} 415 #define PUTRATE(s, s1, fld, l, c, w) \ 416 {temp = (s).fld; (s).fld -= (s1).fld; \ 417 if (display_mode == TIME) (s1).fld = temp; \ 418 putint((int)((float)(s).fld/etime + 0.5), l, c, w);} 419 #define MAXFAIL 5 420 421 static char cpuchar[CPUSTATES] = { '=' , '>', '-', '%', ' ' }; 422 static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_INTR, CP_IDLE }; 423 424 void 425 show_vmstat_top(vmtotal_t *Total, uvmexp_sysctl_t *uvm, uvmexp_sysctl_t *uvm1) 426 { 427 float f1, f2; 428 int psiz; 429 int i, l, c; 430 struct { 431 struct uvmexp_sysctl *uvmexp; 432 } us, us1; 433 434 us.uvmexp = uvm; 435 us1.uvmexp = uvm1; 436 437 putint(ucount(), STATROW, STATCOL, 3); 438 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 439 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 440 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 441 mvaddstr(STATROW, STATCOL + 53, buf); 442 443 putint(Total->t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 444 putint(Total->t_dw, PROCSROW + 1, PROCSCOL + 6, 3); 445 putint(Total->t_sl, PROCSROW + 1, PROCSCOL + 9, 3); 446 447 PUTRATE(us, us1, uvmexp->swtch, GENSTATROW + 1, GENSTATCOL - 1, 7); 448 PUTRATE(us, us1, uvmexp->traps, GENSTATROW + 1, GENSTATCOL + 7, 6); 449 PUTRATE(us, us1, uvmexp->syscalls, GENSTATROW + 1, GENSTATCOL + 14, 6); 450 PUTRATE(us, us1, uvmexp->intrs, GENSTATROW + 1, GENSTATCOL + 21, 5); 451 PUTRATE(us, us1, uvmexp->softs, GENSTATROW + 1, GENSTATCOL + 27, 6); 452 PUTRATE(us, us1, uvmexp->faults, GENSTATROW + 1, GENSTATCOL + 34, 6); 453 454 /* Last CPU state not calculated yet. */ 455 for (f2 = 0.0, psiz = 0, c = 0; c < CPUSTATES; c++) { 456 i = cpuorder[c]; 457 f1 = cputime(i); 458 f2 += f1; 459 l = (int) ((f2 + 1.0) / 2.0) - psiz; 460 if (c == 0) 461 putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0); 462 else 463 putfloat(f1, GRAPHROW, GRAPHCOL + 10 * c + 1, 5, 1, 0); 464 mvhline(GRAPHROW + 2, psiz, cpuchar[c], l); 465 psiz += l; 466 } 467 468 PUTRATE(us, us1, uvmexp->pageins, PAGEROW + 2, PAGECOL + 5, 5); 469 PUTRATE(us, us1, uvmexp->pdpageouts, PAGEROW + 2, PAGECOL + 10, 5); 470 PUTRATE(us, us1, uvmexp->pgswapin, PAGEROW + 3, PAGECOL + 5, 5); 471 PUTRATE(us, us1, uvmexp->pgswapout, PAGEROW + 3, PAGECOL + 10, 5); 472 } 473 474 void 475 showvmstat(void) 476 { 477 int inttotal; 478 int i, l, r, c; 479 static int failcnt = 0; 480 static int relabel = 0; 481 static int last_disks = 0; 482 static char pigs[] = "pigs"; 483 484 if (relabel) { 485 labelvmstat(); 486 relabel = 0; 487 } 488 489 cpuswap(); 490 if (display_mode == TIME) { 491 drvswap(); 492 etime = cur.cp_etime; 493 /* < 5 ticks - ignore this trash */ 494 if ((etime * hertz) < 1.0) { 495 if (failcnt++ <= MAXFAIL) 496 return; 497 clear(); 498 mvprintw(2, 10, "The alternate system clock has died!"); 499 mvprintw(3, 10, "Reverting to ``pigs'' display."); 500 move(CMDLINE, 0); 501 refresh(); 502 failcnt = 0; 503 sleep(5); 504 command(pigs); 505 return; 506 } 507 } else 508 etime = 1.0; 509 510 show_vmstat_top(&s.Total, &s.uvmexp, &s1.uvmexp); 511 512 /* Memory totals */ 513 #define pgtokb(pg) ((pg) * (s.uvmexp.pagesize / 1024)) 514 putint(pgtokb(s.uvmexp.active), MEMROW + 2, MEMCOL + 6, 9); 515 putint(pgtokb(s.uvmexp.active + s.uvmexp.swpginuse), /* XXX */ 516 MEMROW + 2, MEMCOL + 16, 9); 517 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free), 518 MEMROW + 3, MEMCOL + 6, 9); 519 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free + s.uvmexp.swpginuse), 520 MEMROW + 3, MEMCOL + 16, 9); 521 putint(pgtokb(s.uvmexp.free), MEMROW + 2, MEMCOL + 26, 9); 522 putint(pgtokb(s.uvmexp.free + s.uvmexp.swpages - s.uvmexp.swpginuse), 523 MEMROW + 3, MEMCOL + 26, 9); 524 #undef pgtokb 525 526 /* Namei cache */ 527 Z(s, s1, ncs_goodhits); Z(s, s1, ncs_badhits); Z(s, s1, ncs_miss); 528 Z(s, s1, ncs_long); Z(s, s1, ncs_pass2); Z(s, s1, ncs_2passes); 529 s.nchcount = s.nchstats.ncs_goodhits + s.nchstats.ncs_badhits + 530 s.nchstats.ncs_miss + s.nchstats.ncs_long + 531 s.nchstats.ncs_pass2 + s.nchstats.ncs_2passes; 532 if (display_mode == TIME) 533 s1.nchcount = s.nchcount; 534 535 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 536 putint(s.nchstats.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9); 537 #define nz(x) ((x) ? (x) : 1) 538 putfloat(s.nchstats.ncs_goodhits * 100.0 / nz(s.nchcount), 539 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 540 putint(s.nchstats.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 541 putfloat(s.nchstats.ncs_pass2 * 100.0 / nz(s.nchcount), 542 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 543 #undef nz 544 545 /* Disks */ 546 for (l = 0, i = 0, r = DISKROW, c = DISKCOL; 547 i < (int)ndrive; i++) { 548 if (!drv_select[i]) 549 continue; 550 551 if (disk_horiz) 552 c += DISKCOLWIDTH; 553 else 554 r++; 555 if (c + DISKCOLWIDTH > DISKCOLEND) { 556 if (disk_horiz && LINES - 1 - DISKROW > 557 (DISKCOLEND - DISKCOL) / DISKCOLWIDTH) { 558 disk_horiz = 0; 559 relabel = 1; 560 } 561 break; 562 } 563 if (r >= LINES - 1) { 564 if (!disk_horiz && LINES - 1 - DISKROW < 565 (DISKCOLEND - DISKCOL) / DISKCOLWIDTH) { 566 disk_horiz = 1; 567 relabel = 1; 568 } 569 break; 570 } 571 l++; 572 573 dinfo(i, r, c); 574 } 575 /* blank out if we lost any disks */ 576 for (i = l; i < last_disks; i++) { 577 int j; 578 if (disk_horiz) 579 c += DISKCOLWIDTH; 580 else 581 r++; 582 for (j = 0; j < 5; j++) { 583 if (disk_horiz) 584 mvprintw(r+j, c, "%*s", DISKCOLWIDTH, ""); 585 else 586 mvprintw(r, c+j*DISKCOLWIDTH, "%*s", DISKCOLWIDTH, ""); 587 } 588 } 589 last_disks = l; 590 591 /* Interrupts */ 592 failcnt = 0; 593 inttotal = 0; 594 for (i = 0; i < nintr; i++) { 595 if (s.intrcnt[i] == 0) 596 continue; 597 if (intrloc[i] == 0) { 598 if (nextintsrow == LINES) 599 continue; 600 intrloc[i] = nextintsrow++; 601 mvprintw(intrloc[i], INTSCOL + 9, "%-.*s", 602 INTSCOLEND - (INTSCOL + 9), intrname[i]); 603 } 604 X(s, s1, intrcnt); 605 l = (int)((float)s.intrcnt[i]/etime + 0.5); 606 inttotal += l; 607 putint(l, intrloc[i], INTSCOL, 8); 608 } 609 610 for (i = 0; i < nevcnt; i++) { 611 if (s.evcnt[i] == 0) 612 continue; 613 if (ie_head[i].ie_loc == 0) { 614 if (nextintsrow == LINES) 615 continue; 616 ie_head[i].ie_loc = nextintsrow++; 617 print_ie_title(i); 618 } 619 X(s, s1, evcnt); 620 l = (int)((float)s.evcnt[i]/etime + 0.5); 621 inttotal += l; 622 putint(l, ie_head[i].ie_loc, INTSCOL, 8); 623 } 624 putint(inttotal, INTSROW, INTSCOL, 8); 625 626 PUTRATE(s, s1, uvmexp.forks, VMSTATROW + 0, VMSTATCOL + 3, 6); 627 PUTRATE(s, s1, uvmexp.forks_ppwait, VMSTATROW + 1, VMSTATCOL + 3, 6); 628 PUTRATE(s, s1, uvmexp.forks_sharevm, VMSTATROW + 2, VMSTATCOL + 3, 6); 629 PUTRATE(s, s1, uvmexp.fltpgwait, VMSTATROW + 3, VMSTATCOL + 4, 5); 630 PUTRATE(s, s1, uvmexp.fltrelck, VMSTATROW + 4, VMSTATCOL + 3, 6); 631 PUTRATE(s, s1, uvmexp.fltrelckok, VMSTATROW + 5, VMSTATCOL + 3, 6); 632 PUTRATE(s, s1, uvmexp.fltnoram, VMSTATROW + 6, VMSTATCOL + 3, 6); 633 PUTRATE(s, s1, uvmexp.fltamcopy, VMSTATROW + 7, VMSTATCOL + 3, 6); 634 PUTRATE(s, s1, uvmexp.flt_prcopy, VMSTATROW + 8, VMSTATCOL + 3, 6); 635 PUTRATE(s, s1, uvmexp.flt_przero, VMSTATROW + 9, VMSTATCOL + 3, 6); 636 PUTRATE(s, s1, uvmexp.flt_acow, VMSTATROW + 10, VMSTATCOL, 9); 637 putint(s.uvmexp.freemin, VMSTATROW + 11, VMSTATCOL, 9); 638 putint(s.uvmexp.freetarg, VMSTATROW + 12, VMSTATCOL, 9); 639 putint(s.uvmexp.inactarg, VMSTATROW + 13, VMSTATCOL, 9); 640 putint(s.uvmexp.wired, VMSTATROW + 14, VMSTATCOL, 9); 641 PUTRATE(s, s1, uvmexp.pdfreed, VMSTATROW + 15, VMSTATCOL, 9); 642 if (LINES - 1 > VMSTATROW + 16) 643 PUTRATE(s, s1, uvmexp.pdscans, VMSTATROW + 16, VMSTATCOL, 9); 644 645 } 646 647 void 648 vmstat_boot(char *args) 649 { 650 copyinfo(&z, &s1); 651 display_mode = BOOT; 652 } 653 654 void 655 vmstat_run(char *args) 656 { 657 copyinfo(&s1, &s2); 658 display_mode = RUN; 659 } 660 661 void 662 vmstat_time(char *args) 663 { 664 display_mode = TIME; 665 } 666 667 void 668 vmstat_zero(char *args) 669 { 670 if (display_mode == RUN) 671 getinfo(&s1); 672 } 673 674 /* calculate number of users on the system */ 675 static int 676 ucount(void) 677 { 678 static int onusers = -1; 679 int nusers = 0; 680 struct utmpentry *ehead; 681 682 nusers = getutentries(NULL, &ehead); 683 684 if (nusers != onusers) { 685 if (nusers == 1) 686 mvprintw(STATROW, STATCOL + 8, " "); 687 else 688 mvprintw(STATROW, STATCOL + 8, "s"); 689 } 690 onusers = nusers; 691 return (nusers); 692 } 693 694 static float 695 cputime(int indx) 696 { 697 double t; 698 int i; 699 700 t = 0; 701 for (i = 0; i < CPUSTATES; i++) 702 t += cur.cp_time[i]; 703 if (t == 0.0) 704 t = 1.0; 705 return (cur.cp_time[indx] * 100.0 / t); 706 } 707 708 void 709 puthumanint(u_int64_t n, int l, int c, int w) 710 { 711 char b[128]; 712 713 if (move(l, c) != OK) 714 return; 715 if (n == 0) { 716 hline(' ', w); 717 return; 718 } 719 if (humanize_number(b, w, n, "", HN_AUTOSCALE, HN_NOSPACE) == -1 ) { 720 hline('*', w); 721 return; 722 } 723 printw("%*s", w, b); 724 } 725 726 void 727 putint(int n, int l, int c, int w) 728 { 729 char b[128]; 730 731 if (move(l, c) != OK) 732 return; 733 if (n == 0) { 734 hline(' ', w); 735 return; 736 } 737 (void)snprintf(b, sizeof b, "%*d", w, n); 738 if ((int)strlen(b) > w) { 739 if (display_mode == TIME) 740 hline('*', w); 741 else 742 puthumanint(n, l, c, w); 743 return; 744 } 745 addstr(b); 746 } 747 748 void 749 putfloat(double f, int l, int c, int w, int d, int nz) 750 { 751 char b[128]; 752 753 if (move(l, c) != OK) 754 return; 755 if (nz && f == 0.0) { 756 hline(' ', w); 757 return; 758 } 759 (void)snprintf(b, sizeof b, "%*.*f", w, d, f); 760 if ((int)strlen(b) > w) { 761 hline('*', w); 762 return; 763 } 764 addstr(b); 765 } 766 767 static void 768 getinfo(struct Info *stats) 769 { 770 int mib[2]; 771 size_t size; 772 int i; 773 774 cpureadstats(); 775 drvreadstats(); 776 size = sizeof(stats->nchstats); 777 if (sysctlbyname("vfs.namecache_stats", &stats->nchstats, &size, 778 NULL, 0) < 0) { 779 error("can't get namecache statistics: %s\n", strerror(errno)); 780 memset(&stats->nchstats, 0, sizeof(stats->nchstats)); 781 } 782 if (nintr) 783 NREAD(X_INTRCNT, stats->intrcnt, nintr * LONG); 784 for (i = 0; i < nevcnt; i++) 785 KREAD(ie_head[i].ie_count, &stats->evcnt[i], 786 sizeof stats->evcnt[i]); 787 size = sizeof(stats->uvmexp); 788 mib[0] = CTL_VM; 789 mib[1] = VM_UVMEXP2; 790 if (sysctl(mib, 2, &stats->uvmexp, &size, NULL, 0) < 0) { 791 error("can't get uvmexp: %s\n", strerror(errno)); 792 memset(&stats->uvmexp, 0, sizeof(stats->uvmexp)); 793 } 794 size = sizeof(stats->Total); 795 mib[0] = CTL_VM; 796 mib[1] = VM_METER; 797 if (sysctl(mib, 2, &stats->Total, &size, NULL, 0) < 0) { 798 error("Can't get kernel info: %s\n", strerror(errno)); 799 memset(&stats->Total, 0, sizeof(stats->Total)); 800 } 801 } 802 803 static void 804 allocinfo(struct Info *stats) 805 { 806 807 if (nintr && 808 (stats->intrcnt = calloc(nintr, sizeof(long))) == NULL) { 809 error("calloc failed"); 810 die(0); 811 } 812 if ((stats->evcnt = calloc(nevcnt, sizeof(u_int64_t))) == NULL) { 813 error("calloc failed"); 814 die(0); 815 } 816 } 817 818 static void 819 copyinfo(struct Info *from, struct Info *to) 820 { 821 long *intrcnt; 822 u_int64_t *evcnt; 823 824 intrcnt = to->intrcnt; 825 evcnt = to->evcnt; 826 *to = *from; 827 memmove(to->intrcnt = intrcnt, from->intrcnt, nintr * sizeof *intrcnt); 828 memmove(to->evcnt = evcnt, from->evcnt, nevcnt * sizeof *evcnt); 829 } 830 831 static void 832 dinfo(int dn, int r, int c) 833 { 834 double atime; 835 #define ADV if (disk_horiz) r++; else c += DISKCOLWIDTH 836 837 mvprintw(r, c, "%*.*s", DISKCOLWIDTH, DISKCOLWIDTH, dr_name[dn]); 838 ADV; 839 840 putint((int)(cur.seek[dn]/etime+0.5), r, c, DISKCOLWIDTH); 841 ADV; 842 putint((int)((cur.rxfer[dn]+cur.wxfer[dn])/etime+0.5), 843 r, c, DISKCOLWIDTH); 844 ADV; 845 puthumanint((cur.rbytes[dn] + cur.wbytes[dn]) / etime + 0.5, 846 r, c, DISKCOLWIDTH); 847 ADV; 848 849 /* time busy in disk activity */ 850 atime = cur.time[dn].tv_sec + cur.time[dn].tv_usec / 1000000.0; 851 atime = atime * 100.0 / etime; 852 if (atime >= 100) 853 putint(100, r, c, DISKCOLWIDTH); 854 else 855 putfloat(atime, r, c, DISKCOLWIDTH, 1, 1); 856 } 857
Indexes created Fri Sep 26 08:10:20 GMT 2025