vmstat.c revision 1.81
1 /* $NetBSD: vmstat.c,v 1.81 2014/12/24 20:01:22 dennis 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 1.81 2014/12/24 20:01:22 dennis 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 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 } 216 hertz = stathz ? stathz : hz; 217 if (!drvinit(1)) 218 return(0); 219 220 /* Old style interrupt counts - deprecated */ 221 nintr = (namelist[X_EINTRCNT].n_value - 222 namelist[X_INTRCNT].n_value) / sizeof (long); 223 if (nintr) { 224 intrloc = calloc(nintr, sizeof (long)); 225 intrname = calloc(nintr, sizeof (long)); 226 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 227 namelist[X_INTRNAMES].n_value); 228 if (intrnamebuf == NULL || intrname == 0 || intrloc == 0) { 229 error("Out of memory\n"); 230 nintr = 0; 231 return(0); 232 } 233 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 234 NVAL(X_INTRNAMES)); 235 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 236 intrname[i] = cp; 237 cp += strlen(cp) + 1; 238 } 239 } 240 241 /* event counter interrupt counts */ 242 get_interrupt_events(); 243 244 nextintsrow = INTSROW + 1; 245 allocinfo(&s); 246 allocinfo(&s1); 247 allocinfo(&s2); 248 allocinfo(&z); 249 250 getinfo(&s2); 251 copyinfo(&s2, &s1); 252 return(1); 253 } 254 255 void 256 fetchvmstat(void) 257 { 258 time_t now; 259 260 time(&now); 261 strlcpy(buf, ctime(&now), sizeof(buf)); 262 buf[19] = '\0'; 263 getinfo(&s); 264 } 265 266 static void 267 print_ie_title(int i) 268 { 269 int width, name_width, group_width; 270 271 width = INTSCOLEND - (INTSCOL + 9); 272 if (width <= 0) 273 return; 274 275 move(ie_head[i].ie_loc, INTSCOL + 9); 276 group_width = strlen(ie_head[i].ie_group); 277 name_width = strlen(ie_head[i].ie_name); 278 width -= group_width + 1 + name_width; 279 if (width < 0) { 280 /* 281 * Screen to narrow for full strings 282 * This is all rather horrid, in some cases there are a lot 283 * of events in the same group, and in others the event 284 * name is "intr". There are also names which need 7 or 8 285 * columns before they become meaningful. 286 * This is a bad compromise. 287 */ 288 width = -width; 289 group_width -= (width + 1) / 2; 290 name_width -= width / 2; 291 /* some have the 'useful' name "intr", display their group */ 292 if (strcasecmp(ie_head[i].ie_name, "intr") == 0) { 293 group_width += name_width + 1; 294 name_width = 0; 295 } else { 296 if (group_width <= 3 || name_width < 0) { 297 /* don't display group */ 298 name_width += group_width + 1; 299 group_width = 0; 300 } 301 } 302 } 303 304 if (group_width != 0) { 305 printw("%-.*s", group_width, ie_head[i].ie_group); 306 if (name_width != 0) 307 printw(" "); 308 } 309 if (name_width != 0) 310 printw("%-.*s", name_width, ie_head[i].ie_name); 311 } 312 313 void 314 labelvmstat_top(void) 315 { 316 317 clear(); 318 319 mvprintw(STATROW, STATCOL + 4, "users Load"); 320 321 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 322 323 mvprintw(GRAPHROW, GRAPHCOL, 324 " . %% Sy . %% Us . %% Ni . %% In . %% Id"); 325 mvprintw(PROCSROW, PROCSCOL, "Proc:r d s"); 326 mvprintw(GRAPHROW + 1, GRAPHCOL, 327 "| | | | | | | | | | |"); 328 329 mvprintw(PAGEROW, PAGECOL + 8, "PAGING SWAPPING "); 330 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 331 mvprintw(PAGEROW + 2, PAGECOL + 2, "ops"); 332 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 333 } 334 335 void 336 labelvmstat(void) 337 { 338 int i; 339 340 /* Top few lines first */ 341 342 labelvmstat_top(); 343 344 /* Left hand column */ 345 346 mvprintw(MEMROW, MEMCOL, " memory totals (in kB)"); 347 mvprintw(MEMROW + 1, MEMCOL, " real virtual free"); 348 mvprintw(MEMROW + 2, MEMCOL, "Active"); 349 mvprintw(MEMROW + 3, MEMCOL, "All"); 350 351 mvprintw(NAMEIROW, NAMEICOL, "Namei Sys-cache Proc-cache"); 352 mvprintw(NAMEIROW + 1, NAMEICOL, 353 " Calls hits %% hits %%"); 354 355 mvprintw(DISKROW, DISKCOL, "Disks:"); 356 if (disk_horiz) { 357 mvprintw(DISKROW + 1, DISKCOL + 1, "seeks"); 358 mvprintw(DISKROW + 2, DISKCOL + 1, "xfers"); 359 mvprintw(DISKROW + 3, DISKCOL + 1, "bytes"); 360 mvprintw(DISKROW + 4, DISKCOL + 1, "%%busy"); 361 } else { 362 mvprintw(DISKROW, DISKCOL + 1 + 1 * DISKCOLWIDTH, "seeks"); 363 mvprintw(DISKROW, DISKCOL + 1 + 2 * DISKCOLWIDTH, "xfers"); 364 mvprintw(DISKROW, DISKCOL + 1 + 3 * DISKCOLWIDTH, "bytes"); 365 mvprintw(DISKROW, DISKCOL + 1 + 4 * DISKCOLWIDTH, "%%busy"); 366 } 367 368 /* Middle column */ 369 370 mvprintw(INTSROW, INTSCOL + 9, "Interrupts"); 371 for (i = 0; i < nintr; i++) { 372 if (intrloc[i] == 0) 373 continue; 374 mvprintw(intrloc[i], INTSCOL + 9, "%-.*s", 375 INTSCOLEND - (INTSCOL + 9), intrname[i]); 376 } 377 for (i = 0; i < nevcnt; i++) { 378 if (ie_head[i].ie_loc == 0) 379 continue; 380 print_ie_title(i); 381 } 382 383 /* Right hand column */ 384 385 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "forks"); 386 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "fkppw"); 387 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "fksvm"); 388 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "pwait"); 389 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "relck"); 390 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "rlkok"); 391 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "noram"); 392 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "ndcpy"); 393 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "fltcp"); 394 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "zfod"); 395 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "cow"); 396 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "fmin"); 397 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "ftarg"); 398 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "itarg"); 399 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "wired"); 400 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "pdfre"); 401 402 if (LINES - 1 > VMSTATROW + 16) 403 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "pdscn"); 404 } 405 406 #define X(s, s1, fld) {temp = (s).fld[i]; (s).fld[i] -= (s1).fld[i]; \ 407 if (display_mode == TIME) (s1).fld[i] = temp;} 408 #define Z(s, s1, fld) {temp = (s).nchstats.fld; \ 409 (s).nchstats.fld -= (s1).nchstats.fld; \ 410 if (display_mode == TIME) (s1).nchstats.fld = temp;} 411 #define PUTRATE(s, s1, fld, l, c, w) \ 412 {temp = (s).fld; (s).fld -= (s1).fld; \ 413 if (display_mode == TIME) (s1).fld = temp; \ 414 putint((int)((float)(s).fld/etime + 0.5), l, c, w);} 415 #define MAXFAIL 5 416 417 static char cpuchar[CPUSTATES] = { '=' , '>', '-', '%', ' ' }; 418 static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_INTR, CP_IDLE }; 419 420 void 421 show_vmstat_top(vmtotal_t *Total, uvmexp_sysctl_t *uvm, uvmexp_sysctl_t *uvm1) 422 { 423 float f1, f2; 424 int psiz; 425 int i, l, c; 426 struct { 427 struct uvmexp_sysctl *uvmexp; 428 } us, us1; 429 430 us.uvmexp = uvm; 431 us1.uvmexp = uvm1; 432 433 putint(ucount(), STATROW, STATCOL, 3); 434 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 435 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 436 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 437 mvaddstr(STATROW, STATCOL + 53, buf); 438 439 putint(Total->t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 440 putint(Total->t_dw, PROCSROW + 1, PROCSCOL + 6, 3); 441 putint(Total->t_sl, PROCSROW + 1, PROCSCOL + 9, 3); 442 443 PUTRATE(us, us1, uvmexp->swtch, GENSTATROW + 1, GENSTATCOL - 1, 7); 444 PUTRATE(us, us1, uvmexp->traps, GENSTATROW + 1, GENSTATCOL + 7, 6); 445 PUTRATE(us, us1, uvmexp->syscalls, GENSTATROW + 1, GENSTATCOL + 14, 6); 446 PUTRATE(us, us1, uvmexp->intrs, GENSTATROW + 1, GENSTATCOL + 21, 5); 447 PUTRATE(us, us1, uvmexp->softs, GENSTATROW + 1, GENSTATCOL + 27, 6); 448 PUTRATE(us, us1, uvmexp->faults, GENSTATROW + 1, GENSTATCOL + 34, 6); 449 450 /* Last CPU state not calculated yet. */ 451 for (f2 = 0.0, psiz = 0, c = 0; c < CPUSTATES; c++) { 452 i = cpuorder[c]; 453 f1 = cputime(i); 454 f2 += f1; 455 l = (int) ((f2 + 1.0) / 2.0) - psiz; 456 if (c == 0) 457 putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0); 458 else 459 putfloat(f1, GRAPHROW, GRAPHCOL + 10 * c + 1, 5, 1, 0); 460 mvhline(GRAPHROW + 2, psiz, cpuchar[c], l); 461 psiz += l; 462 } 463 464 PUTRATE(us, us1, uvmexp->pageins, PAGEROW + 2, PAGECOL + 5, 5); 465 PUTRATE(us, us1, uvmexp->pdpageouts, PAGEROW + 2, PAGECOL + 10, 5); 466 PUTRATE(us, us1, uvmexp->pgswapin, PAGEROW + 3, PAGECOL + 5, 5); 467 PUTRATE(us, us1, uvmexp->pgswapout, PAGEROW + 3, PAGECOL + 10, 5); 468 } 469 470 void 471 showvmstat(void) 472 { 473 int inttotal; 474 int i, l, r, c; 475 static int failcnt = 0; 476 static int relabel = 0; 477 static int last_disks = 0; 478 static char pigs[] = "pigs"; 479 480 if (relabel) { 481 labelvmstat(); 482 relabel = 0; 483 } 484 485 cpuswap(); 486 if (display_mode == TIME) { 487 drvswap(); 488 etime = cur.cp_etime; 489 /* < 5 ticks - ignore this trash */ 490 if ((etime * hertz) < 1.0) { 491 if (failcnt++ <= MAXFAIL) 492 return; 493 clear(); 494 mvprintw(2, 10, "The alternate system clock has died!"); 495 mvprintw(3, 10, "Reverting to ``pigs'' display."); 496 move(CMDLINE, 0); 497 refresh(); 498 failcnt = 0; 499 sleep(5); 500 command(pigs); 501 return; 502 } 503 } else 504 etime = 1.0; 505 506 show_vmstat_top(&s.Total, &s.uvmexp, &s1.uvmexp); 507 508 /* Memory totals */ 509 #define pgtokb(pg) ((pg) * (s.uvmexp.pagesize / 1024)) 510 putint(pgtokb(s.uvmexp.active), MEMROW + 2, MEMCOL + 6, 9); 511 putint(pgtokb(s.uvmexp.active + s.uvmexp.swpginuse), /* XXX */ 512 MEMROW + 2, MEMCOL + 16, 9); 513 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free), 514 MEMROW + 3, MEMCOL + 6, 9); 515 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free + s.uvmexp.swpginuse), 516 MEMROW + 3, MEMCOL + 16, 9); 517 putint(pgtokb(s.uvmexp.free), MEMROW + 2, MEMCOL + 26, 9); 518 putint(pgtokb(s.uvmexp.free + s.uvmexp.swpages - s.uvmexp.swpginuse), 519 MEMROW + 3, MEMCOL + 26, 9); 520 #undef pgtokb 521 522 /* Namei cache */ 523 Z(s, s1, ncs_goodhits); Z(s, s1, ncs_badhits); Z(s, s1, ncs_miss); 524 Z(s, s1, ncs_long); Z(s, s1, ncs_pass2); Z(s, s1, ncs_2passes); 525 s.nchcount = s.nchstats.ncs_goodhits + s.nchstats.ncs_badhits + 526 s.nchstats.ncs_miss + s.nchstats.ncs_long + 527 s.nchstats.ncs_pass2 + s.nchstats.ncs_2passes; 528 if (display_mode == TIME) 529 s1.nchcount = s.nchcount; 530 531 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 532 putint(s.nchstats.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9); 533 #define nz(x) ((x) ? (x) : 1) 534 putfloat(s.nchstats.ncs_goodhits * 100.0 / nz(s.nchcount), 535 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 536 putint(s.nchstats.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 537 putfloat(s.nchstats.ncs_pass2 * 100.0 / nz(s.nchcount), 538 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 539 #undef nz 540 541 /* Disks */ 542 for (l = 0, i = 0, r = DISKROW, c = DISKCOL; 543 i < (int)ndrive; i++) { 544 if (!drv_select[i]) 545 continue; 546 547 if (disk_horiz) 548 c += DISKCOLWIDTH; 549 else 550 r++; 551 if (c + DISKCOLWIDTH > DISKCOLEND) { 552 if (disk_horiz && LINES - 1 - DISKROW > 553 (DISKCOLEND - DISKCOL) / DISKCOLWIDTH) { 554 disk_horiz = 0; 555 relabel = 1; 556 } 557 break; 558 } 559 if (r >= LINES - 1) { 560 if (!disk_horiz && LINES - 1 - DISKROW < 561 (DISKCOLEND - DISKCOL) / DISKCOLWIDTH) { 562 disk_horiz = 1; 563 relabel = 1; 564 } 565 break; 566 } 567 l++; 568 569 dinfo(i, r, c); 570 } 571 /* blank out if we lost any disks */ 572 for (i = l; i < last_disks; i++) { 573 int j; 574 if (disk_horiz) 575 c += DISKCOLWIDTH; 576 else 577 r++; 578 for (j = 0; j < 5; j++) { 579 if (disk_horiz) 580 mvprintw(r+j, c, "%*s", DISKCOLWIDTH, ""); 581 else 582 mvprintw(r, c+j*DISKCOLWIDTH, "%*s", DISKCOLWIDTH, ""); 583 } 584 } 585 last_disks = l; 586 587 /* Interrupts */ 588 failcnt = 0; 589 inttotal = 0; 590 for (i = 0; i < nintr; i++) { 591 if (s.intrcnt[i] == 0) 592 continue; 593 if (intrloc[i] == 0) { 594 if (nextintsrow == LINES) 595 continue; 596 intrloc[i] = nextintsrow++; 597 mvprintw(intrloc[i], INTSCOL + 9, "%-.*s", 598 INTSCOLEND - (INTSCOL + 9), intrname[i]); 599 } 600 X(s, s1, intrcnt); 601 l = (int)((float)s.intrcnt[i]/etime + 0.5); 602 inttotal += l; 603 putint(l, intrloc[i], INTSCOL, 8); 604 } 605 606 for (i = 0; i < nevcnt; i++) { 607 if (s.evcnt[i] == 0) 608 continue; 609 if (ie_head[i].ie_loc == 0) { 610 if (nextintsrow == LINES) 611 continue; 612 ie_head[i].ie_loc = nextintsrow++; 613 print_ie_title(i); 614 } 615 X(s, s1, evcnt); 616 l = (int)((float)s.evcnt[i]/etime + 0.5); 617 inttotal += l; 618 putint(l, ie_head[i].ie_loc, INTSCOL, 8); 619 } 620 putint(inttotal, INTSROW, INTSCOL, 8); 621 622 PUTRATE(s, s1, uvmexp.forks, VMSTATROW + 0, VMSTATCOL + 3, 6); 623 PUTRATE(s, s1, uvmexp.forks_ppwait, VMSTATROW + 1, VMSTATCOL + 3, 6); 624 PUTRATE(s, s1, uvmexp.forks_sharevm, VMSTATROW + 2, VMSTATCOL + 3, 6); 625 PUTRATE(s, s1, uvmexp.fltpgwait, VMSTATROW + 3, VMSTATCOL + 4, 5); 626 PUTRATE(s, s1, uvmexp.fltrelck, VMSTATROW + 4, VMSTATCOL + 3, 6); 627 PUTRATE(s, s1, uvmexp.fltrelckok, VMSTATROW + 5, VMSTATCOL + 3, 6); 628 PUTRATE(s, s1, uvmexp.fltnoram, VMSTATROW + 6, VMSTATCOL + 3, 6); 629 PUTRATE(s, s1, uvmexp.fltamcopy, VMSTATROW + 7, VMSTATCOL + 3, 6); 630 PUTRATE(s, s1, uvmexp.flt_prcopy, VMSTATROW + 8, VMSTATCOL + 3, 6); 631 PUTRATE(s, s1, uvmexp.flt_przero, VMSTATROW + 9, VMSTATCOL + 3, 6); 632 PUTRATE(s, s1, uvmexp.flt_acow, VMSTATROW + 10, VMSTATCOL, 9); 633 putint(s.uvmexp.freemin, VMSTATROW + 11, VMSTATCOL, 9); 634 putint(s.uvmexp.freetarg, VMSTATROW + 12, VMSTATCOL, 9); 635 putint(s.uvmexp.inactarg, VMSTATROW + 13, VMSTATCOL, 9); 636 putint(s.uvmexp.wired, VMSTATROW + 14, VMSTATCOL, 9); 637 PUTRATE(s, s1, uvmexp.pdfreed, VMSTATROW + 15, VMSTATCOL, 9); 638 if (LINES - 1 > VMSTATROW + 16) 639 PUTRATE(s, s1, uvmexp.pdscans, VMSTATROW + 16, VMSTATCOL, 9); 640 641 } 642 643 void 644 vmstat_boot(char *args) 645 { 646 copyinfo(&z, &s1); 647 display_mode = BOOT; 648 } 649 650 void 651 vmstat_run(char *args) 652 { 653 copyinfo(&s1, &s2); 654 display_mode = RUN; 655 } 656 657 void 658 vmstat_time(char *args) 659 { 660 display_mode = TIME; 661 } 662 663 void 664 vmstat_zero(char *args) 665 { 666 if (display_mode == RUN) 667 getinfo(&s1); 668 } 669 670 /* calculate number of users on the system */ 671 static int 672 ucount(void) 673 { 674 static int onusers = -1; 675 int nusers = 0; 676 struct utmpentry *ehead; 677 678 nusers = getutentries(NULL, &ehead); 679 680 if (nusers != onusers) { 681 if (nusers == 1) 682 mvprintw(STATROW, STATCOL + 8, " "); 683 else 684 mvprintw(STATROW, STATCOL + 8, "s"); 685 } 686 onusers = nusers; 687 return (nusers); 688 } 689 690 static float 691 cputime(int indx) 692 { 693 double t; 694 int i; 695 696 t = 0; 697 for (i = 0; i < CPUSTATES; i++) 698 t += cur.cp_time[i]; 699 if (t == 0.0) 700 t = 1.0; 701 return (cur.cp_time[indx] * 100.0 / t); 702 } 703 704 void 705 puthumanint(u_int64_t n, int l, int c, int w) 706 { 707 char b[128]; 708 709 if (move(l, c) != OK) 710 return; 711 if (n == 0) { 712 hline(' ', w); 713 return; 714 } 715 if (humanize_number(b, w, n, "", HN_AUTOSCALE, HN_NOSPACE) == -1 ) { 716 hline('*', w); 717 return; 718 } 719 printw("%*s", w, b); 720 } 721 722 void 723 putint(int n, int l, int c, int w) 724 { 725 char b[128]; 726 727 if (move(l, c) != OK) 728 return; 729 if (n == 0) { 730 hline(' ', w); 731 return; 732 } 733 (void)snprintf(b, sizeof b, "%*d", w, n); 734 if ((int)strlen(b) > w) { 735 if (display_mode == TIME) 736 hline('*', w); 737 else 738 puthumanint(n, l, c, w); 739 return; 740 } 741 addstr(b); 742 } 743 744 void 745 putfloat(double f, int l, int c, int w, int d, int nz) 746 { 747 char b[128]; 748 749 if (move(l, c) != OK) 750 return; 751 if (nz && f == 0.0) { 752 hline(' ', w); 753 return; 754 } 755 (void)snprintf(b, sizeof b, "%*.*f", w, d, f); 756 if ((int)strlen(b) > w) { 757 hline('*', w); 758 return; 759 } 760 addstr(b); 761 } 762 763 static void 764 getinfo(struct Info *stats) 765 { 766 int mib[2]; 767 size_t size; 768 int i; 769 770 cpureadstats(); 771 drvreadstats(); 772 size = sizeof(stats->nchstats); 773 if (sysctlbyname("vfs.namecache_stats", &stats->nchstats, &size, 774 NULL, 0) < 0) { 775 error("can't get namecache statistics: %s\n", strerror(errno)); 776 memset(&stats->nchstats, 0, sizeof(stats->nchstats)); 777 } 778 if (nintr) 779 NREAD(X_INTRCNT, stats->intrcnt, nintr * LONG); 780 for (i = 0; i < nevcnt; i++) 781 KREAD(ie_head[i].ie_count, &stats->evcnt[i], 782 sizeof stats->evcnt[i]); 783 size = sizeof(stats->uvmexp); 784 mib[0] = CTL_VM; 785 mib[1] = VM_UVMEXP2; 786 if (sysctl(mib, 2, &stats->uvmexp, &size, NULL, 0) < 0) { 787 error("can't get uvmexp: %s\n", strerror(errno)); 788 memset(&stats->uvmexp, 0, sizeof(stats->uvmexp)); 789 } 790 size = sizeof(stats->Total); 791 mib[0] = CTL_VM; 792 mib[1] = VM_METER; 793 if (sysctl(mib, 2, &stats->Total, &size, NULL, 0) < 0) { 794 error("Can't get kernel info: %s\n", strerror(errno)); 795 memset(&stats->Total, 0, sizeof(stats->Total)); 796 } 797 } 798 799 static void 800 allocinfo(struct Info *stats) 801 { 802 803 if (nintr && 804 (stats->intrcnt = calloc(nintr, sizeof(long))) == NULL) { 805 error("calloc failed"); 806 die(0); 807 } 808 if ((stats->evcnt = calloc(nevcnt, sizeof(u_int64_t))) == NULL) { 809 error("calloc failed"); 810 die(0); 811 } 812 } 813 814 static void 815 copyinfo(struct Info *from, struct Info *to) 816 { 817 long *intrcnt; 818 u_int64_t *evcnt; 819 820 intrcnt = to->intrcnt; 821 evcnt = to->evcnt; 822 *to = *from; 823 memmove(to->intrcnt = intrcnt, from->intrcnt, nintr * sizeof *intrcnt); 824 memmove(to->evcnt = evcnt, from->evcnt, nevcnt * sizeof *evcnt); 825 } 826 827 static void 828 dinfo(int dn, int r, int c) 829 { 830 double atime; 831 #define ADV if (disk_horiz) r++; else c += DISKCOLWIDTH 832 833 mvprintw(r, c, "%*.*s", DISKCOLWIDTH, DISKCOLWIDTH, dr_name[dn]); 834 ADV; 835 836 putint((int)(cur.seek[dn]/etime+0.5), r, c, DISKCOLWIDTH); 837 ADV; 838 putint((int)((cur.rxfer[dn]+cur.wxfer[dn])/etime+0.5), 839 r, c, DISKCOLWIDTH); 840 ADV; 841 puthumanint((cur.rbytes[dn] + cur.wbytes[dn]) / etime + 0.5, 842 r, c, DISKCOLWIDTH); 843 ADV; 844 845 /* time busy in disk activity */ 846 atime = cur.time[dn].tv_sec + cur.time[dn].tv_usec / 1000000.0; 847 atime = atime * 100.0 / etime; 848 if (atime >= 100) 849 putint(100, r, c, DISKCOLWIDTH); 850 else 851 putfloat(atime, r, c, DISKCOLWIDTH, 1, 1); 852 } 853
Indexes created Fri Sep 26 20:09:58 GMT 2025