vmstat.c revision 1.56
1 /* $NetBSD: vmstat.c,v 1.56 2004/06/13 08:56:21 mycroft 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 1.56 2004/06/13 08:56:21 mycroft 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 "utmpentry.h" 60 61 static struct Info { 62 struct uvmexp_sysctl uvmexp; 63 struct vmtotal Total; 64 struct nchstats nchstats; 65 long nchcount; 66 long *intrcnt; 67 u_int64_t *evcnt; 68 } s, s1, s2, z; 69 70 #define cnt s.Cnt 71 #define oldcnt s1.Cnt 72 #define total s.Total 73 #define nchtotal s.nchstats 74 #define oldnchtotal s1.nchstats 75 76 static enum state { BOOT, TIME, RUN } state = TIME; 77 78 static void allocinfo(struct Info *); 79 static void copyinfo(struct Info *, struct Info *); 80 static float cputime(int); 81 static void dinfo(int, int, int); 82 static void getinfo(struct Info *, enum state); 83 static void putint(int, int, int, int); 84 static void putfloat(double, int, int, int, int, int); 85 static int ucount(void); 86 87 static char buf[26]; 88 static u_int64_t t; 89 static double etime; 90 static float hertz; 91 static int nintr; 92 static long *intrloc; 93 static char **intrname; 94 static int nextintsrow; 95 static int disk_horiz = 1; 96 97 WINDOW * 98 openvmstat(void) 99 { 100 return (stdscr); 101 } 102 103 void 104 closevmstat(WINDOW *w) 105 { 106 107 if (w == NULL) 108 return; 109 wclear(w); 110 wrefresh(w); 111 } 112 113 114 static struct nlist namelist[] = { 115 #define X_NCHSTATS 0 116 { "_nchstats" }, 117 #define X_INTRNAMES 1 118 { "_intrnames" }, 119 #define X_EINTRNAMES 2 120 { "_eintrnames" }, 121 #define X_INTRCNT 3 122 { "_intrcnt" }, 123 #define X_EINTRCNT 4 124 { "_eintrcnt" }, 125 #define X_ALLEVENTS 5 126 { "_allevents" }, 127 { "" }, 128 }; 129 130 /* 131 * These constants define where the major pieces are laid out 132 */ 133 #define STATROW 0 /* uses 1 row and 68 cols */ 134 #define STATCOL 2 135 #define MEMROW 9 /* uses 4 rows and 31 cols */ 136 #define MEMCOL 0 137 #define PAGEROW 2 /* uses 4 rows and 26 cols */ 138 #define PAGECOL 54 139 #define INTSROW 9 /* uses all rows to bottom and 17 cols */ 140 #define INTSCOL 40 141 #define INTSCOLEND (VMSTATCOL - 0) 142 #define PROCSROW 2 /* uses 2 rows and 20 cols */ 143 #define PROCSCOL 0 144 #define GENSTATROW 2 /* uses 2 rows and 30 cols */ 145 #define GENSTATCOL 18 146 #define VMSTATROW 7 /* uses 17 rows and 15 cols */ 147 #define VMSTATCOL 64 148 #define GRAPHROW 5 /* uses 3 rows and 51 cols */ 149 #define GRAPHCOL 0 150 #define NAMEIROW 14 /* uses 3 rows and 38 cols */ 151 #define NAMEICOL 0 152 #define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ 153 #define DISKCOL 0 154 #define DISKCOLWIDTH 6 155 #define DISKCOLEND INTSCOL 156 157 typedef struct intr_evcnt intr_evcnt_t; 158 struct intr_evcnt { 159 char *ie_group; 160 char *ie_name; 161 u_int64_t *ie_count; /* kernel address... */ 162 int ie_loc; /* screen row */ 163 } *ie_head; 164 int nevcnt; 165 166 static void 167 get_interrupt_events(void) 168 { 169 struct evcntlist allevents; 170 struct evcnt evcnt, *evptr; 171 intr_evcnt_t *ie; 172 intr_evcnt_t *n; 173 174 if (!NREAD(X_ALLEVENTS, &allevents, sizeof allevents)) 175 return; 176 evptr = allevents.tqh_first; 177 for (; evptr != NULL; evptr = evcnt.ev_list.tqe_next) { 178 if (!KREAD(evptr, &evcnt, sizeof evcnt)) 179 return; 180 if (evcnt.ev_type != EVCNT_TYPE_INTR) 181 continue; 182 n = realloc(ie_head, sizeof *ie * (nevcnt + 1)); 183 if (n == NULL) { 184 error("realloc failed"); 185 die(0); 186 } 187 ie_head = n; 188 ie = ie_head + nevcnt; 189 ie->ie_group = malloc(evcnt.ev_grouplen + 1); 190 ie->ie_name = malloc(evcnt.ev_namelen + 1); 191 if (ie->ie_group == NULL || ie->ie_name == NULL) 192 return; 193 if (!KREAD(evcnt.ev_group, ie->ie_group, evcnt.ev_grouplen + 1)) 194 return; 195 if (!KREAD(evcnt.ev_name, ie->ie_name, evcnt.ev_namelen + 1)) 196 return; 197 ie->ie_count = &evptr->ev_count; 198 ie->ie_loc = 0; 199 nevcnt++; 200 } 201 } 202 203 int 204 initvmstat(void) 205 { 206 char *intrnamebuf, *cp; 207 int i; 208 209 if (namelist[0].n_type == 0) { 210 if (kvm_nlist(kd, namelist)) { 211 nlisterr(namelist); 212 return(0); 213 } 214 if (namelist[0].n_type == 0) { 215 error("No namelist"); 216 return(0); 217 } 218 } 219 hertz = stathz ? stathz : hz; 220 if (!dkinit(1)) 221 return(0); 222 223 /* Old style interrupt counts - deprecated */ 224 nintr = (namelist[X_EINTRCNT].n_value - 225 namelist[X_INTRCNT].n_value) / sizeof (long); 226 intrloc = calloc(nintr, sizeof (long)); 227 intrname = calloc(nintr, sizeof (long)); 228 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 229 namelist[X_INTRNAMES].n_value); 230 if (intrnamebuf == NULL || intrname == 0 || intrloc == 0) { 231 error("Out of memory\n"); 232 if (intrnamebuf) 233 free(intrnamebuf); 234 if (intrname) 235 free(intrname); 236 if (intrloc) 237 free(intrloc); 238 nintr = 0; 239 return(0); 240 } 241 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 242 NVAL(X_INTRNAMES)); 243 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 244 intrname[i] = cp; 245 cp += strlen(cp) + 1; 246 } 247 248 /* event counter interrupt counts */ 249 get_interrupt_events(); 250 251 nextintsrow = INTSROW + 1; 252 allocinfo(&s); 253 allocinfo(&s1); 254 allocinfo(&s2); 255 allocinfo(&z); 256 257 getinfo(&s2, RUN); 258 copyinfo(&s2, &s1); 259 return(1); 260 } 261 262 void 263 fetchvmstat(void) 264 { 265 time_t now; 266 267 time(&now); 268 strlcpy(buf, ctime(&now), sizeof(buf)); 269 buf[19] = '\0'; 270 getinfo(&s, state); 271 } 272 273 static void 274 print_ie_title(int i) 275 { 276 int width, name_width, group_width; 277 278 width = INTSCOLEND - (INTSCOL + 9); 279 if (width <= 0) 280 return; 281 282 move(ie_head[i].ie_loc, INTSCOL + 9); 283 group_width = strlen(ie_head[i].ie_group); 284 name_width = strlen(ie_head[i].ie_name); 285 width -= group_width + 1 + name_width; 286 if (width < 0) { 287 /* 288 * Screen to narrow for full strings 289 * This is all rather horrid, in some cases there are a lot 290 * of events in the same group, and in others the event 291 * name is "intr". There are also names which need 7 or 8 292 * columns before they become meaningful. 293 * This is a bad compromise. 294 */ 295 width = -width; 296 group_width -= (width + 1) / 2; 297 name_width -= width / 2; 298 /* some have the 'useful' name "intr", display their group */ 299 if (strcasecmp(ie_head[i].ie_name, "intr") == 0) { 300 group_width += name_width + 1; 301 name_width = 0; 302 } else { 303 if (group_width <= 3 || name_width < 0) { 304 /* don't display group */ 305 name_width += group_width + 1; 306 group_width = 0; 307 } 308 } 309 } 310 311 if (group_width != 0) { 312 printw("%-.*s", group_width, ie_head[i].ie_group); 313 if (name_width != 0) 314 printw(" "); 315 } 316 if (name_width != 0) 317 printw("%-.*s", name_width, ie_head[i].ie_name); 318 } 319 320 void 321 labelvmstat(void) 322 { 323 int i; 324 325 clear(); 326 mvprintw(STATROW, STATCOL + 4, "users Load"); 327 mvprintw(MEMROW, MEMCOL, " memory totals (in kB)"); 328 mvprintw(MEMROW + 1, MEMCOL, " real virtual free"); 329 mvprintw(MEMROW + 2, MEMCOL, "Active"); 330 mvprintw(MEMROW + 3, MEMCOL, "All"); 331 332 mvprintw(PAGEROW, PAGECOL, " PAGING SWAPPING "); 333 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 334 mvprintw(PAGEROW + 2, PAGECOL, "ops"); 335 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 336 337 mvprintw(INTSROW, INTSCOL + 9, "Interrupts"); 338 339 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "forks"); 340 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "fkppw"); 341 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "fksvm"); 342 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "pwait"); 343 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "relck"); 344 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "rlkok"); 345 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "noram"); 346 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "ndcpy"); 347 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "fltcp"); 348 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "zfod"); 349 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "cow"); 350 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "fmin"); 351 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "ftarg"); 352 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "itarg"); 353 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "wired"); 354 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "pdfre"); 355 if (LINES - 1 > VMSTATROW + 16) 356 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "pdscn"); 357 358 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 359 360 mvprintw(GRAPHROW, GRAPHCOL, 361 " . %% Sy . %% Us . %% Ni . %% In . %% Id"); 362 mvprintw(PROCSROW, PROCSCOL, "Proc:r d s w"); 363 mvprintw(GRAPHROW + 1, GRAPHCOL, 364 "| | | | | | | | | | |"); 365 366 mvprintw(NAMEIROW, NAMEICOL, "Namei Sys-cache Proc-cache"); 367 mvprintw(NAMEIROW + 1, NAMEICOL, 368 " Calls hits %% hits %%"); 369 mvprintw(DISKROW, DISKCOL, "Disks:"); 370 if (disk_horiz) { 371 mvprintw(DISKROW + 1, DISKCOL + 1, "seeks"); 372 mvprintw(DISKROW + 2, DISKCOL + 1, "xfers"); 373 mvprintw(DISKROW + 3, DISKCOL + 1, "bytes"); 374 mvprintw(DISKROW + 4, DISKCOL + 1, "%%busy"); 375 } else { 376 mvprintw(DISKROW, DISKCOL + 1 + 1 * DISKCOLWIDTH, "seeks"); 377 mvprintw(DISKROW, DISKCOL + 1 + 2 * DISKCOLWIDTH, "xfers"); 378 mvprintw(DISKROW, DISKCOL + 1 + 3 * DISKCOLWIDTH, "bytes"); 379 mvprintw(DISKROW, DISKCOL + 1 + 4 * DISKCOLWIDTH, "%%busy"); 380 } 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 } 393 394 #define X(fld) {t=s.fld[i]; s.fld[i]-=s1.fld[i]; if(state==TIME) s1.fld[i]=t;} 395 #define Y(fld) {t = s.fld; s.fld -= s1.fld; if(state == TIME) s1.fld = t;} 396 #define Z(fld) {t = s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld; \ 397 if(state == TIME) s1.nchstats.fld = t;} 398 #define PUTRATE(fld, l, c, w) {Y(fld); putint((int)((float)s.fld/etime + 0.5), l, c, w);} 399 #define MAXFAIL 5 400 401 static char cpuchar[CPUSTATES] = { '=' , '>', '-', '%', ' ' }; 402 static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_INTR, CP_IDLE }; 403 404 void 405 showvmstat(void) 406 { 407 float f1, f2; 408 int psiz, inttotal; 409 int i, l, r, c; 410 static int failcnt = 0; 411 static int relabel = 0; 412 static int last_disks = 0; 413 414 if (relabel) { 415 labelvmstat(); 416 relabel = 0; 417 } 418 419 if (state == TIME) { 420 dkswap(); 421 etime = cur.cp_etime; 422 /* < 5 ticks - ignore this trash */ 423 if ((etime * hertz) < 1.0) { 424 if (failcnt++ > MAXFAIL) 425 return; 426 clear(); 427 mvprintw(2, 10, "The alternate system clock has died!"); 428 mvprintw(3, 10, "Reverting to ``pigs'' display."); 429 move(CMDLINE, 0); 430 refresh(); 431 failcnt = 0; 432 sleep(5); 433 command("pigs"); 434 return; 435 } 436 } else 437 etime = 1.0; 438 439 failcnt = 0; 440 inttotal = 0; 441 for (i = 0; i < nintr; i++) { 442 if (s.intrcnt[i] == 0) 443 continue; 444 if (intrloc[i] == 0) { 445 if (nextintsrow == LINES) 446 continue; 447 intrloc[i] = nextintsrow++; 448 mvprintw(intrloc[i], INTSCOL + 9, "%-.*s", 449 INTSCOLEND - (INTSCOL + 9), intrname[i]); 450 } 451 X(intrcnt); 452 l = (int)((float)s.intrcnt[i]/etime + 0.5); 453 inttotal += l; 454 putint(l, intrloc[i], INTSCOL, 8); 455 } 456 for (i = 0; i < nevcnt; i++) { 457 if (s.evcnt[i] == 0) 458 continue; 459 if (ie_head[i].ie_loc == 0) { 460 if (nextintsrow == LINES) 461 continue; 462 ie_head[i].ie_loc = nextintsrow++; 463 print_ie_title(i); 464 } 465 X(evcnt); 466 l = (int)((float)s.evcnt[i]/etime + 0.5); 467 inttotal += l; 468 putint(l, ie_head[i].ie_loc, INTSCOL, 8); 469 } 470 putint(inttotal, INTSROW, INTSCOL, 8); 471 Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss); 472 Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); 473 s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits + 474 nchtotal.ncs_miss + nchtotal.ncs_long; 475 if (state == TIME) 476 s1.nchcount = s.nchcount; 477 478 psiz = 0; 479 f2 = 0.0; 480 481 /* 482 * Last CPU state not calculated yet. 483 */ 484 for (c = 0; c < CPUSTATES; c++) { 485 i = cpuorder[c]; 486 f1 = cputime(i); 487 f2 += f1; 488 l = (int) ((f2 + 1.0) / 2.0) - psiz; 489 if (c == 0) 490 putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0); 491 else 492 putfloat(f1, GRAPHROW, GRAPHCOL + 10 * c + 1, 5, 1, 0); 493 mvhline(GRAPHROW + 2, psiz, cpuchar[c], l); 494 psiz += l; 495 } 496 497 putint(ucount(), STATROW, STATCOL, 3); 498 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 499 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 500 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 501 mvaddstr(STATROW, STATCOL + 53, buf); 502 #define pgtokb(pg) ((pg) * (s.uvmexp.pagesize / 1024)) 503 504 putint(pgtokb(s.uvmexp.active), MEMROW + 2, MEMCOL + 6, 7); 505 putint(pgtokb(s.uvmexp.active + s.uvmexp.swpginuse), /* XXX */ 506 MEMROW + 2, MEMCOL + 16, 7); 507 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free), MEMROW + 3, MEMCOL + 6, 7); 508 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free + s.uvmexp.swpginuse), 509 MEMROW + 3, MEMCOL + 16, 7); 510 putint(pgtokb(s.uvmexp.free), MEMROW + 2, MEMCOL + 24, 7); 511 putint(pgtokb(s.uvmexp.free + s.uvmexp.swpages - s.uvmexp.swpginuse), 512 MEMROW + 3, MEMCOL + 24, 7); 513 putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 514 putint(total.t_dw, PROCSROW + 1, PROCSCOL + 6, 3); 515 putint(total.t_sl, PROCSROW + 1, PROCSCOL + 9, 3); 516 putint(total.t_sw, PROCSROW + 1, PROCSCOL + 12, 3); 517 PUTRATE(uvmexp.forks, VMSTATROW + 0, VMSTATCOL + 3, 6); 518 PUTRATE(uvmexp.forks_ppwait, VMSTATROW + 1, VMSTATCOL + 3, 6); 519 PUTRATE(uvmexp.forks_sharevm, VMSTATROW + 2, VMSTATCOL + 3, 6); 520 PUTRATE(uvmexp.fltpgwait, VMSTATROW + 3, VMSTATCOL + 4, 5); 521 PUTRATE(uvmexp.fltrelck, VMSTATROW + 4, VMSTATCOL + 3, 6); 522 PUTRATE(uvmexp.fltrelckok, VMSTATROW + 5, VMSTATCOL + 3, 6); 523 PUTRATE(uvmexp.fltnoram, VMSTATROW + 6, VMSTATCOL + 3, 6); 524 PUTRATE(uvmexp.fltamcopy, VMSTATROW + 7, VMSTATCOL + 3, 6); 525 PUTRATE(uvmexp.flt_prcopy, VMSTATROW + 8, VMSTATCOL + 3, 6); 526 PUTRATE(uvmexp.flt_przero, VMSTATROW + 9, VMSTATCOL + 3, 6); 527 PUTRATE(uvmexp.flt_acow, VMSTATROW + 10, VMSTATCOL, 9); 528 putint(s.uvmexp.freemin, VMSTATROW + 11, VMSTATCOL, 9); 529 putint(s.uvmexp.freetarg, VMSTATROW + 12, VMSTATCOL, 9); 530 putint(s.uvmexp.inactarg, VMSTATROW + 13, VMSTATCOL, 9); 531 putint(s.uvmexp.wired, VMSTATROW + 14, VMSTATCOL, 9); 532 PUTRATE(uvmexp.pdfreed, VMSTATROW + 15, VMSTATCOL, 9); 533 if (LINES - 1 > VMSTATROW + 16) 534 PUTRATE(uvmexp.pdscans, VMSTATROW + 16, VMSTATCOL, 9); 535 536 PUTRATE(uvmexp.pageins, PAGEROW + 2, PAGECOL + 5, 5); 537 PUTRATE(uvmexp.pdpageouts, PAGEROW + 2, PAGECOL + 10, 5); 538 PUTRATE(uvmexp.swapins, PAGEROW + 2, PAGECOL + 15, 5); 539 PUTRATE(uvmexp.swapouts, PAGEROW + 2, PAGECOL + 20, 5); 540 PUTRATE(uvmexp.pgswapin, PAGEROW + 3, PAGECOL + 5, 5); 541 PUTRATE(uvmexp.pgswapout, PAGEROW + 3, PAGECOL + 10, 5); 542 543 PUTRATE(uvmexp.swtch, GENSTATROW + 1, GENSTATCOL, 4); 544 PUTRATE(uvmexp.traps, GENSTATROW + 1, GENSTATCOL + 4, 6); 545 PUTRATE(uvmexp.syscalls, GENSTATROW + 1, GENSTATCOL + 10, 6); 546 PUTRATE(uvmexp.intrs, GENSTATROW + 1, GENSTATCOL + 16, 5); 547 PUTRATE(uvmexp.softs, GENSTATROW + 1, GENSTATCOL + 21, 5); 548 PUTRATE(uvmexp.faults, GENSTATROW + 1, GENSTATCOL + 26, 6); 549 for (l = 0, i = 0, r = DISKROW, c = DISKCOL; i < dk_ndrive; i++) { 550 if (!dk_select[i]) 551 continue; 552 if (disk_horiz) 553 c += DISKCOLWIDTH; 554 else 555 r++; 556 if (c + DISKCOLWIDTH > DISKCOLEND) { 557 if (disk_horiz && LINES - 1 - DISKROW > 558 (DISKCOLEND - DISKCOL) / DISKCOLWIDTH) { 559 disk_horiz = 0; 560 relabel = 1; 561 } 562 break; 563 } 564 if (r >= LINES - 1) { 565 if (!disk_horiz && LINES - 1 - DISKROW < 566 (DISKCOLEND - DISKCOL) / DISKCOLWIDTH) { 567 disk_horiz = 1; 568 relabel = 1; 569 } 570 break; 571 } 572 l++; 573 574 dinfo(i, r, c); 575 } 576 /* blank out if we lost any disks */ 577 for (i = l; i < last_disks; i++) { 578 int j; 579 if (disk_horiz) 580 c += DISKCOLWIDTH; 581 else 582 r++; 583 for (j = 0; j < 5; j++) { 584 if (disk_horiz) 585 mvprintw(r+j, c, "%*s", DISKCOLWIDTH, ""); 586 else 587 mvprintw(r, c+j*DISKCOLWIDTH, "%*s", DISKCOLWIDTH, ""); 588 } 589 } 590 last_disks = l; 591 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 592 putint(nchtotal.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9); 593 #define nz(x) ((x) ? (x) : 1) 594 putfloat(nchtotal.ncs_goodhits * 100.0 / nz(s.nchcount), 595 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 596 putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 597 putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), 598 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 599 #undef nz 600 } 601 602 void 603 vmstat_boot(char *args) 604 { 605 copyinfo(&z, &s1); 606 state = BOOT; 607 } 608 609 void 610 vmstat_run(char *args) 611 { 612 copyinfo(&s1, &s2); 613 state = RUN; 614 } 615 616 void 617 vmstat_time(char *args) 618 { 619 state = TIME; 620 } 621 622 void 623 vmstat_zero(char *args) 624 { 625 if (state == RUN) 626 getinfo(&s1, RUN); 627 } 628 629 /* calculate number of users on the system */ 630 static int 631 ucount(void) 632 { 633 static int onusers = -1; 634 static struct utmpentry *oehead = NULL; 635 int nusers = 0; 636 struct utmpentry *ehead; 637 638 nusers = getutentries(NULL, &ehead); 639 if (oehead != ehead) { 640 freeutentries(oehead); 641 oehead = ehead; 642 } 643 644 if (nusers != onusers) { 645 if (nusers == 1) 646 mvprintw(STATROW, STATCOL + 8, " "); 647 else 648 mvprintw(STATROW, STATCOL + 8, "s"); 649 } 650 onusers = nusers; 651 return (nusers); 652 } 653 654 static float 655 cputime(int indx) 656 { 657 double t; 658 int i; 659 660 t = 0; 661 for (i = 0; i < CPUSTATES; i++) 662 t += cur.cp_time[i]; 663 if (t == 0.0) 664 t = 1.0; 665 return (cur.cp_time[indx] * 100.0 / t); 666 } 667 668 static void 669 puthumanint(u_int64_t n, int l, int c, int w) 670 { 671 char b[128]; 672 673 if (move(l, c) != OK) 674 return; 675 if (n == 0) { 676 hline(' ', w); 677 return; 678 } 679 if (humanize_number(b, w, n, "", HN_AUTOSCALE, HN_NOSPACE) == -1 ) { 680 hline('*', w); 681 return; 682 } 683 hline(' ', w - strlen(b)); 684 mvaddstr(l, c + w - strlen(b), b); 685 } 686 687 static void 688 putint(int n, int l, int c, int w) 689 { 690 char b[128]; 691 692 if (move(l, c) != OK) 693 return; 694 if (n == 0) { 695 hline(' ', w); 696 return; 697 } 698 (void)snprintf(b, sizeof b, "%*d", w, n); 699 if (strlen(b) > w) { 700 hline('*', w); 701 return; 702 } 703 addstr(b); 704 } 705 706 static void 707 putfloat(double f, int l, int c, int w, int d, int nz) 708 { 709 char b[128]; 710 711 if (move(l, c) != OK) 712 return; 713 if (nz && f == 0.0) { 714 hline(' ', w); 715 return; 716 } 717 (void)snprintf(b, sizeof b, "%*.*f", w, d, f); 718 if (strlen(b) > w) { 719 hline('*', w); 720 return; 721 } 722 addstr(b); 723 } 724 725 static void 726 getinfo(struct Info *s, enum state st) 727 { 728 int mib[2]; 729 size_t size; 730 int i; 731 732 dkreadstats(); 733 NREAD(X_NCHSTATS, &s->nchstats, sizeof s->nchstats); 734 NREAD(X_INTRCNT, s->intrcnt, nintr * LONG); 735 for (i = 0; i < nevcnt; i++) 736 KREAD(ie_head[i].ie_count, &s->evcnt[i], sizeof s->evcnt[i]); 737 size = sizeof(s->uvmexp); 738 mib[0] = CTL_VM; 739 mib[1] = VM_UVMEXP2; 740 if (sysctl(mib, 2, &s->uvmexp, &size, NULL, 0) < 0) { 741 error("can't get uvmexp: %s\n", strerror(errno)); 742 memset(&s->uvmexp, 0, sizeof(s->uvmexp)); 743 } 744 size = sizeof(s->Total); 745 mib[0] = CTL_VM; 746 mib[1] = VM_METER; 747 if (sysctl(mib, 2, &s->Total, &size, NULL, 0) < 0) { 748 error("Can't get kernel info: %s\n", strerror(errno)); 749 memset(&s->Total, 0, sizeof(s->Total)); 750 } 751 } 752 753 static void 754 allocinfo(struct Info *s) 755 { 756 757 if ((s->intrcnt = calloc(nintr, sizeof(long))) == NULL) { 758 error("calloc failed"); 759 die(0); 760 } 761 if ((s->evcnt = calloc(nevcnt, sizeof(u_int64_t))) == NULL) { 762 error("calloc failed"); 763 die(0); 764 } 765 } 766 767 static void 768 copyinfo(struct Info *from, struct Info *to) 769 { 770 long *intrcnt; 771 u_int64_t *evcnt; 772 773 intrcnt = to->intrcnt; 774 evcnt = to->evcnt; 775 *to = *from; 776 memmove(to->intrcnt = intrcnt, from->intrcnt, nintr * sizeof *intrcnt); 777 memmove(to->evcnt = evcnt, from->evcnt, nevcnt * sizeof *evcnt); 778 } 779 780 static void 781 dinfo(int dn, int r, int c) 782 { 783 double atime; 784 #define ADV if (disk_horiz) r++; else c += DISKCOLWIDTH 785 786 mvprintw(r, c, "%*.*s", DISKCOLWIDTH, DISKCOLWIDTH, dr_name[dn]); 787 ADV; 788 789 putint((int)(cur.dk_seek[dn]/etime+0.5), r, c, DISKCOLWIDTH); 790 ADV; 791 putint((int)((cur.dk_rxfer[dn]+cur.dk_wxfer[dn])/etime+0.5), 792 r, c, DISKCOLWIDTH); 793 ADV; 794 puthumanint((cur.dk_rbytes[dn] + cur.dk_wbytes[dn]) / etime + 0.5, 795 r, c, DISKCOLWIDTH); 796 ADV; 797 798 /* time busy in disk activity */ 799 atime = cur.dk_time[dn].tv_sec + cur.dk_time[dn].tv_usec / 1000000.0; 800 atime = atime * 100.0 / etime; 801 if (atime >= 100) 802 putint(100, r, c, DISKCOLWIDTH); 803 else 804 putfloat(atime, r, c, DISKCOLWIDTH, 1, 1); 805 #undef ADV 806 } 807
Indexes created Mon Sep 22 13:09:51 GMT 2025