vmstat.c revision 1.53
1 /* $NetBSD: vmstat.c,v 1.53 2003/08/07 11:16:01 agc 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 1.53 2003/08/07 11:16:01 agc 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; 172 173 if (!NREAD(X_ALLEVENTS, &allevents, sizeof allevents)) 174 return; 175 evptr = allevents.tqh_first; 176 for (; evptr != NULL; evptr = evcnt.ev_list.tqe_next) { 177 if (!KREAD(evptr, &evcnt, sizeof evcnt)) 178 return; 179 if (evcnt.ev_type != EVCNT_TYPE_INTR) 180 continue; 181 ie_head = realloc(ie_head, sizeof *ie * (nevcnt + 1)); 182 if (ie_head == NULL) { 183 error("realloc failed"); 184 die(0); 185 } 186 ie = ie_head + nevcnt; 187 ie->ie_group = malloc(evcnt.ev_grouplen + 1); 188 ie->ie_name = malloc(evcnt.ev_namelen + 1); 189 if (ie->ie_group == NULL || ie->ie_name == NULL) 190 return; 191 if (!KREAD(evcnt.ev_group, ie->ie_group, evcnt.ev_grouplen + 1)) 192 return; 193 if (!KREAD(evcnt.ev_name, ie->ie_name, evcnt.ev_namelen + 1)) 194 return; 195 ie->ie_count = &evptr->ev_count; 196 ie->ie_loc = 0; 197 nevcnt++; 198 } 199 } 200 201 int 202 initvmstat(void) 203 { 204 char *intrnamebuf, *cp; 205 int i; 206 207 if (namelist[0].n_type == 0) { 208 if (kvm_nlist(kd, namelist)) { 209 nlisterr(namelist); 210 return(0); 211 } 212 if (namelist[0].n_type == 0) { 213 error("No namelist"); 214 return(0); 215 } 216 } 217 hertz = stathz ? stathz : hz; 218 if (!dkinit(1)) 219 return(0); 220 221 /* Old style interrupt counts - deprecated */ 222 nintr = (namelist[X_EINTRCNT].n_value - 223 namelist[X_INTRCNT].n_value) / sizeof (long); 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 if (intrnamebuf) 231 free(intrnamebuf); 232 if (intrname) 233 free(intrname); 234 if (intrloc) 235 free(intrloc); 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 /* event counter interrupt counts */ 247 get_interrupt_events(); 248 249 nextintsrow = INTSROW + 1; 250 allocinfo(&s); 251 allocinfo(&s1); 252 allocinfo(&s2); 253 allocinfo(&z); 254 255 getinfo(&s2, RUN); 256 copyinfo(&s2, &s1); 257 return(1); 258 } 259 260 void 261 fetchvmstat(void) 262 { 263 time_t now; 264 265 time(&now); 266 strlcpy(buf, ctime(&now), sizeof(buf)); 267 buf[19] = '\0'; 268 getinfo(&s, state); 269 } 270 271 static void 272 print_ie_title(int i) 273 { 274 int width, name_width, group_width; 275 276 width = INTSCOLEND - (INTSCOL + 9); 277 if (width <= 0) 278 return; 279 280 move(ie_head[i].ie_loc, INTSCOL + 9); 281 group_width = strlen(ie_head[i].ie_group); 282 name_width = strlen(ie_head[i].ie_name); 283 width -= group_width + 1 + name_width; 284 if (width < 0) { 285 /* 286 * Screen to narrow for full strings 287 * This is all rather horrid, in some cases there are a lot 288 * of events in the same group, and in others the event 289 * name is "intr". There are also names which need 7 or 8 290 * columns before they become meaningful. 291 * This is a bad compromise. 292 */ 293 width = -width; 294 group_width -= (width + 1) / 2; 295 name_width -= width / 2; 296 /* some have the 'useful' name "intr", display their group */ 297 if (strcasecmp(ie_head[i].ie_name, "intr") == 0) { 298 group_width += name_width + 1; 299 name_width = 0; 300 } else { 301 if (group_width <= 3 || name_width < 0) { 302 /* don't display group */ 303 name_width += group_width + 1; 304 group_width = 0; 305 } 306 } 307 } 308 309 if (group_width != 0) { 310 printw("%-.*s", group_width, ie_head[i].ie_group); 311 if (name_width != 0) 312 printw(" "); 313 } 314 if (name_width != 0) 315 printw("%-.*s", name_width, ie_head[i].ie_name); 316 } 317 318 void 319 labelvmstat(void) 320 { 321 int i; 322 323 clear(); 324 mvprintw(STATROW, STATCOL + 4, "users Load"); 325 mvprintw(MEMROW, MEMCOL, " memory totals (in kB)"); 326 mvprintw(MEMROW + 1, MEMCOL, " real virtual free"); 327 mvprintw(MEMROW + 2, MEMCOL, "Active"); 328 mvprintw(MEMROW + 3, MEMCOL, "All"); 329 330 mvprintw(PAGEROW, PAGECOL, " PAGING SWAPPING "); 331 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 332 mvprintw(PAGEROW + 2, PAGECOL, "ops"); 333 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 334 335 mvprintw(INTSROW, INTSCOL + 9, "Interrupts"); 336 337 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "forks"); 338 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "fkppw"); 339 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "fksvm"); 340 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "pwait"); 341 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "relck"); 342 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "rlkok"); 343 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "noram"); 344 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "ndcpy"); 345 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "fltcp"); 346 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "zfod"); 347 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "cow"); 348 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "fmin"); 349 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "ftarg"); 350 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "itarg"); 351 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "wired"); 352 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "pdfre"); 353 if (LINES - 1 > VMSTATROW + 16) 354 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "pdscn"); 355 356 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 357 358 mvprintw(GRAPHROW, GRAPHCOL, 359 " . %% Sy . %% Us . %% Ni . %% In . %% Id"); 360 mvprintw(PROCSROW, PROCSCOL, "Proc:r d s w"); 361 mvprintw(GRAPHROW + 1, GRAPHCOL, 362 "| | | | | | | | | | |"); 363 364 mvprintw(NAMEIROW, NAMEICOL, "Namei Sys-cache Proc-cache"); 365 mvprintw(NAMEIROW + 1, NAMEICOL, 366 " Calls hits %% hits %%"); 367 mvprintw(DISKROW, DISKCOL, "Disks:"); 368 if (disk_horiz) { 369 mvprintw(DISKROW + 1, DISKCOL + 1, "seeks"); 370 mvprintw(DISKROW + 2, DISKCOL + 1, "xfers"); 371 mvprintw(DISKROW + 3, DISKCOL + 1, "bytes"); 372 mvprintw(DISKROW + 4, DISKCOL + 1, "%%busy"); 373 } else { 374 mvprintw(DISKROW, DISKCOL + 1 + 1 * DISKCOLWIDTH, "seeks"); 375 mvprintw(DISKROW, DISKCOL + 1 + 2 * DISKCOLWIDTH, "xfers"); 376 mvprintw(DISKROW, DISKCOL + 1 + 3 * DISKCOLWIDTH, "bytes"); 377 mvprintw(DISKROW, DISKCOL + 1 + 4 * DISKCOLWIDTH, "%%busy"); 378 } 379 for (i = 0; i < nintr; i++) { 380 if (intrloc[i] == 0) 381 continue; 382 mvprintw(intrloc[i], INTSCOL + 9, "%-.*s", 383 INTSCOLEND - (INTSCOL + 9), intrname[i]); 384 } 385 for (i = 0; i < nevcnt; i++) { 386 if (ie_head[i].ie_loc == 0) 387 continue; 388 print_ie_title(i); 389 } 390 } 391 392 #define X(fld) {t=s.fld[i]; s.fld[i]-=s1.fld[i]; if(state==TIME) s1.fld[i]=t;} 393 #define Y(fld) {t = s.fld; s.fld -= s1.fld; if(state == TIME) s1.fld = t;} 394 #define Z(fld) {t = s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld; \ 395 if(state == TIME) s1.nchstats.fld = t;} 396 #define PUTRATE(fld, l, c, w) {Y(fld); putint((int)((float)s.fld/etime + 0.5), l, c, w);} 397 #define MAXFAIL 5 398 399 static char cpuchar[CPUSTATES] = { '=' , '>', '-', '%', ' ' }; 400 static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_INTR, CP_IDLE }; 401 402 void 403 showvmstat(void) 404 { 405 float f1, f2; 406 int psiz, inttotal; 407 int i, l, r, c; 408 static int failcnt = 0; 409 static int relabel = 0; 410 static int last_disks = 0; 411 412 if (relabel) { 413 labelvmstat(); 414 relabel = 0; 415 } 416 417 if (state == TIME) { 418 dkswap(); 419 etime = cur.cp_etime; 420 /* < 5 ticks - ignore this trash */ 421 if ((etime * hertz) < 1.0) { 422 if (failcnt++ > MAXFAIL) 423 return; 424 clear(); 425 mvprintw(2, 10, "The alternate system clock has died!"); 426 mvprintw(3, 10, "Reverting to ``pigs'' display."); 427 move(CMDLINE, 0); 428 refresh(); 429 failcnt = 0; 430 sleep(5); 431 command("pigs"); 432 return; 433 } 434 } else 435 etime = 1.0; 436 437 failcnt = 0; 438 inttotal = 0; 439 for (i = 0; i < nintr; i++) { 440 if (s.intrcnt[i] == 0) 441 continue; 442 if (intrloc[i] == 0) { 443 if (nextintsrow == LINES) 444 continue; 445 intrloc[i] = nextintsrow++; 446 mvprintw(intrloc[i], INTSCOL + 9, "%-.*s", 447 INTSCOLEND - (INTSCOL + 9), intrname[i]); 448 } 449 X(intrcnt); 450 l = (int)((float)s.intrcnt[i]/etime + 0.5); 451 inttotal += l; 452 putint(l, intrloc[i], INTSCOL, 8); 453 } 454 for (i = 0; i < nevcnt; i++) { 455 if (s.evcnt[i] == 0) 456 continue; 457 if (ie_head[i].ie_loc == 0) { 458 if (nextintsrow == LINES) 459 continue; 460 ie_head[i].ie_loc = nextintsrow++; 461 print_ie_title(i); 462 } 463 X(evcnt); 464 l = (int)((float)s.evcnt[i]/etime + 0.5); 465 inttotal += l; 466 putint(l, ie_head[i].ie_loc, INTSCOL, 8); 467 } 468 putint(inttotal, INTSROW, INTSCOL, 8); 469 Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss); 470 Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); 471 s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits + 472 nchtotal.ncs_miss + nchtotal.ncs_long; 473 if (state == TIME) 474 s1.nchcount = s.nchcount; 475 476 psiz = 0; 477 f2 = 0.0; 478 479 /* 480 * Last CPU state not calculated yet. 481 */ 482 for (c = 0; c < CPUSTATES; c++) { 483 i = cpuorder[c]; 484 f1 = cputime(i); 485 f2 += f1; 486 l = (int) ((f2 + 1.0) / 2.0) - psiz; 487 if (c == 0) 488 putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0); 489 else 490 putfloat(f1, GRAPHROW, GRAPHCOL + 10 * c + 1, 5, 1, 0); 491 mvhline(GRAPHROW + 2, psiz, cpuchar[c], l); 492 psiz += l; 493 } 494 495 putint(ucount(), STATROW, STATCOL, 3); 496 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 497 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 498 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 499 mvaddstr(STATROW, STATCOL + 53, buf); 500 #define pgtokb(pg) ((pg) * (s.uvmexp.pagesize / 1024)) 501 502 putint(pgtokb(s.uvmexp.active), MEMROW + 2, MEMCOL + 6, 7); 503 putint(pgtokb(s.uvmexp.active + s.uvmexp.swpginuse), /* XXX */ 504 MEMROW + 2, MEMCOL + 16, 7); 505 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free), MEMROW + 3, MEMCOL + 6, 7); 506 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free + s.uvmexp.swpginuse), 507 MEMROW + 3, MEMCOL + 16, 7); 508 putint(pgtokb(s.uvmexp.free), MEMROW + 2, MEMCOL + 24, 7); 509 putint(pgtokb(s.uvmexp.free + s.uvmexp.swpages - s.uvmexp.swpginuse), 510 MEMROW + 3, MEMCOL + 24, 7); 511 putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 512 putint(total.t_dw, PROCSROW + 1, PROCSCOL + 6, 3); 513 putint(total.t_sl, PROCSROW + 1, PROCSCOL + 9, 3); 514 putint(total.t_sw, PROCSROW + 1, PROCSCOL + 12, 3); 515 PUTRATE(uvmexp.forks, VMSTATROW + 0, VMSTATCOL + 3, 6); 516 PUTRATE(uvmexp.forks_ppwait, VMSTATROW + 1, VMSTATCOL + 3, 6); 517 PUTRATE(uvmexp.forks_sharevm, VMSTATROW + 2, VMSTATCOL + 3, 6); 518 PUTRATE(uvmexp.fltpgwait, VMSTATROW + 3, VMSTATCOL + 4, 5); 519 PUTRATE(uvmexp.fltrelck, VMSTATROW + 4, VMSTATCOL + 3, 6); 520 PUTRATE(uvmexp.fltrelckok, VMSTATROW + 5, VMSTATCOL + 3, 6); 521 PUTRATE(uvmexp.fltnoram, VMSTATROW + 6, VMSTATCOL + 3, 6); 522 PUTRATE(uvmexp.fltamcopy, VMSTATROW + 7, VMSTATCOL + 3, 6); 523 PUTRATE(uvmexp.flt_prcopy, VMSTATROW + 8, VMSTATCOL + 3, 6); 524 PUTRATE(uvmexp.flt_przero, VMSTATROW + 9, VMSTATCOL + 3, 6); 525 PUTRATE(uvmexp.flt_acow, VMSTATROW + 10, VMSTATCOL, 9); 526 putint(s.uvmexp.freemin, VMSTATROW + 11, VMSTATCOL, 9); 527 putint(s.uvmexp.freetarg, VMSTATROW + 12, VMSTATCOL, 9); 528 putint(s.uvmexp.inactarg, VMSTATROW + 13, VMSTATCOL, 9); 529 putint(s.uvmexp.wired, VMSTATROW + 14, VMSTATCOL, 9); 530 PUTRATE(uvmexp.pdfreed, VMSTATROW + 15, VMSTATCOL, 9); 531 if (LINES - 1 > VMSTATROW + 16) 532 PUTRATE(uvmexp.pdscans, VMSTATROW + 16, VMSTATCOL, 9); 533 534 PUTRATE(uvmexp.pageins, PAGEROW + 2, PAGECOL + 5, 5); 535 PUTRATE(uvmexp.pdpageouts, PAGEROW + 2, PAGECOL + 10, 5); 536 PUTRATE(uvmexp.swapins, PAGEROW + 2, PAGECOL + 15, 5); 537 PUTRATE(uvmexp.swapouts, PAGEROW + 2, PAGECOL + 20, 5); 538 PUTRATE(uvmexp.pgswapin, PAGEROW + 3, PAGECOL + 5, 5); 539 PUTRATE(uvmexp.pgswapout, PAGEROW + 3, PAGECOL + 10, 5); 540 541 PUTRATE(uvmexp.swtch, GENSTATROW + 1, GENSTATCOL, 4); 542 PUTRATE(uvmexp.traps, GENSTATROW + 1, GENSTATCOL + 4, 6); 543 PUTRATE(uvmexp.syscalls, GENSTATROW + 1, GENSTATCOL + 10, 6); 544 PUTRATE(uvmexp.intrs, GENSTATROW + 1, GENSTATCOL + 16, 5); 545 PUTRATE(uvmexp.softs, GENSTATROW + 1, GENSTATCOL + 21, 5); 546 PUTRATE(uvmexp.faults, GENSTATROW + 1, GENSTATCOL + 26, 6); 547 for (l = 0, i = 0, r = DISKROW, c = DISKCOL; i < dk_ndrive; i++) { 548 if (!dk_select[i]) 549 continue; 550 if (disk_horiz) 551 c += DISKCOLWIDTH; 552 else 553 r++; 554 if (c + DISKCOLWIDTH > DISKCOLEND) { 555 if (disk_horiz && LINES - 1 - DISKROW > 556 (DISKCOLEND - DISKCOL) / DISKCOLWIDTH) { 557 disk_horiz = 0; 558 relabel = 1; 559 } 560 break; 561 } 562 if (r >= LINES - 1) { 563 if (!disk_horiz && LINES - 1 - DISKROW < 564 (DISKCOLEND - DISKCOL) / DISKCOLWIDTH) { 565 disk_horiz = 1; 566 relabel = 1; 567 } 568 break; 569 } 570 l++; 571 572 dinfo(i, r, c); 573 } 574 /* blank out if we lost any disks */ 575 for (i = l; i < last_disks; i++) { 576 int j; 577 if (disk_horiz) 578 c += DISKCOLWIDTH; 579 else 580 r++; 581 for (j = 0; j < 5; j++) { 582 mvprintw(r, c, "%*s", DISKCOLWIDTH, ""); 583 if (disk_horiz) 584 r++; 585 else 586 c += DISKCOLWIDTH; 587 } 588 } 589 last_disks = l; 590 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 591 putint(nchtotal.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9); 592 #define nz(x) ((x) ? (x) : 1) 593 putfloat(nchtotal.ncs_goodhits * 100.0 / nz(s.nchcount), 594 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 595 putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 596 putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), 597 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 598 #undef nz 599 } 600 601 void 602 vmstat_boot(char *args) 603 { 604 copyinfo(&z, &s1); 605 state = BOOT; 606 } 607 608 void 609 vmstat_run(char *args) 610 { 611 copyinfo(&s1, &s2); 612 state = RUN; 613 } 614 615 void 616 vmstat_time(char *args) 617 { 618 state = TIME; 619 } 620 621 void 622 vmstat_zero(char *args) 623 { 624 if (state == RUN) 625 getinfo(&s1, RUN); 626 } 627 628 /* calculate number of users on the system */ 629 static int 630 ucount(void) 631 { 632 static int onusers = -1; 633 static struct utmpentry *oehead = NULL; 634 int nusers = 0; 635 struct utmpentry *ehead; 636 637 nusers = getutentries(NULL, &ehead); 638 if (oehead != ehead) { 639 freeutentries(oehead); 640 oehead = ehead; 641 } 642 643 if (nusers != onusers) { 644 if (nusers == 1) 645 mvprintw(STATROW, STATCOL + 8, " "); 646 else 647 mvprintw(STATROW, STATCOL + 8, "s"); 648 } 649 onusers = nusers; 650 return (nusers); 651 } 652 653 static float 654 cputime(int indx) 655 { 656 double t; 657 int i; 658 659 t = 0; 660 for (i = 0; i < CPUSTATES; i++) 661 t += cur.cp_time[i]; 662 if (t == 0.0) 663 t = 1.0; 664 return (cur.cp_time[indx] * 100.0 / t); 665 } 666 667 static void 668 puthumanint(u_int64_t n, int l, int c, int w) 669 { 670 char b[128]; 671 672 if (move(l, c) != OK) 673 return; 674 if (n == 0) { 675 hline(' ', w); 676 return; 677 } 678 if (humanize_number(b, w, n, "", HN_AUTOSCALE, HN_NOSPACE) == -1 ) { 679 hline('*', w); 680 return; 681 } 682 hline(' ', w - strlen(b)); 683 mvaddstr(l, c + w - strlen(b), b); 684 } 685 686 static void 687 putint(int n, int l, int c, int w) 688 { 689 char b[128]; 690 691 if (move(l, c) != OK) 692 return; 693 if (n == 0) { 694 hline(' ', w); 695 return; 696 } 697 (void)snprintf(b, sizeof b, "%*d", w, n); 698 if (strlen(b) > w) { 699 hline('*', w); 700 return; 701 } 702 addstr(b); 703 } 704 705 static void 706 putfloat(double f, int l, int c, int w, int d, int nz) 707 { 708 char b[128]; 709 710 if (move(l, c) != OK) 711 return; 712 if (nz && f == 0.0) { 713 hline(' ', w); 714 return; 715 } 716 (void)snprintf(b, sizeof b, "%*.*f", w, d, f); 717 if (strlen(b) > w) { 718 hline('*', w); 719 return; 720 } 721 addstr(b); 722 } 723 724 static void 725 getinfo(struct Info *s, enum state st) 726 { 727 int mib[2]; 728 size_t size; 729 int i; 730 731 dkreadstats(); 732 NREAD(X_NCHSTATS, &s->nchstats, sizeof s->nchstats); 733 NREAD(X_INTRCNT, s->intrcnt, nintr * LONG); 734 for (i = 0; i < nevcnt; i++) 735 KREAD(ie_head[i].ie_count, &s->evcnt[i], sizeof s->evcnt[i]); 736 size = sizeof(s->uvmexp); 737 mib[0] = CTL_VM; 738 mib[1] = VM_UVMEXP2; 739 if (sysctl(mib, 2, &s->uvmexp, &size, NULL, 0) < 0) { 740 error("can't get uvmexp: %s\n", strerror(errno)); 741 memset(&s->uvmexp, 0, sizeof(s->uvmexp)); 742 } 743 size = sizeof(s->Total); 744 mib[0] = CTL_VM; 745 mib[1] = VM_METER; 746 if (sysctl(mib, 2, &s->Total, &size, NULL, 0) < 0) { 747 error("Can't get kernel info: %s\n", strerror(errno)); 748 memset(&s->Total, 0, sizeof(s->Total)); 749 } 750 } 751 752 static void 753 allocinfo(struct Info *s) 754 { 755 756 if ((s->intrcnt = calloc(nintr, sizeof(long))) == NULL) { 757 error("calloc failed"); 758 die(0); 759 } 760 if ((s->evcnt = calloc(nevcnt, sizeof(u_int64_t))) == NULL) { 761 error("calloc failed"); 762 die(0); 763 } 764 } 765 766 static void 767 copyinfo(struct Info *from, struct Info *to) 768 { 769 long *intrcnt; 770 u_int64_t *evcnt; 771 772 intrcnt = to->intrcnt; 773 evcnt = to->evcnt; 774 *to = *from; 775 memmove(to->intrcnt = intrcnt, from->intrcnt, nintr * sizeof (int)); 776 memmove(to->evcnt = evcnt, from->evcnt, nevcnt * sizeof *evcnt); 777 } 778 779 static void 780 dinfo(int dn, int r, int c) 781 { 782 double atime; 783 #define ADV if (disk_horiz) r++; else c += DISKCOLWIDTH 784 785 mvprintw(r, c, "%*.*s", DISKCOLWIDTH, DISKCOLWIDTH, dr_name[dn]); 786 ADV; 787 788 putint((int)(cur.dk_seek[dn]/etime+0.5), r, c, DISKCOLWIDTH); 789 ADV; 790 putint((int)((cur.dk_rxfer[dn]+cur.dk_wxfer[dn])/etime+0.5), 791 r, c, DISKCOLWIDTH); 792 ADV; 793 puthumanint((cur.dk_rbytes[dn] + cur.dk_wbytes[dn]) / etime + 0.5, 794 r, c, DISKCOLWIDTH); 795 ADV; 796 797 /* time busy in disk activity */ 798 atime = cur.dk_time[dn].tv_sec + cur.dk_time[dn].tv_usec / 1000000.0; 799 atime = atime * 100.0 / etime; 800 if (atime >= 100) 801 putint(100, r, c, DISKCOLWIDTH); 802 else 803 putfloat(atime, r, c, DISKCOLWIDTH, 1, 1); 804 #undef ADV 805 } 806
Indexes created Wed Sep 24 15:09:51 GMT 2025