vmstat.c revision 1.50
1 /* $NetBSD: vmstat.c,v 1.50 2003/05/15 01:00:07 itojun 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 #if 0 39 static char sccsid[] = "@(#)vmstat.c 8.2 (Berkeley) 1/12/94"; 40 #endif 41 __RCSID("$NetBSD: vmstat.c,v 1.50 2003/05/15 01:00:07 itojun Exp $"); 42 #endif /* not lint */ 43 44 /* 45 * Cursed vmstat -- from Robert Elz. 46 */ 47 48 #include <sys/param.h> 49 #include <sys/dkstat.h> 50 #include <sys/user.h> 51 #include <sys/namei.h> 52 #include <sys/sysctl.h> 53 #include <sys/device.h> 54 55 #include <uvm/uvm_extern.h> 56 57 #include <stdlib.h> 58 #include <string.h> 59 #include <util.h> 60 61 #include "systat.h" 62 #include "extern.h" 63 #include "dkstats.h" 64 #include "utmpentry.h" 65 66 static struct Info { 67 struct uvmexp_sysctl uvmexp; 68 struct vmtotal Total; 69 struct nchstats nchstats; 70 long nchcount; 71 long *intrcnt; 72 u_int64_t *evcnt; 73 } s, s1, s2, z; 74 75 #define cnt s.Cnt 76 #define oldcnt s1.Cnt 77 #define total s.Total 78 #define nchtotal s.nchstats 79 #define oldnchtotal s1.nchstats 80 81 static enum state { BOOT, TIME, RUN } state = TIME; 82 83 static void allocinfo(struct Info *); 84 static void copyinfo(struct Info *, struct Info *); 85 static float cputime(int); 86 static void dinfo(int, int, int); 87 static void getinfo(struct Info *, enum state); 88 static void putint(int, int, int, int); 89 static void putfloat(double, int, int, int, int, int); 90 static int ucount(void); 91 92 static char buf[26]; 93 static u_int64_t t; 94 static double etime; 95 static float hertz; 96 static int nintr; 97 static long *intrloc; 98 static char **intrname; 99 static int nextintsrow; 100 static int disk_horiz = 1; 101 102 WINDOW * 103 openvmstat(void) 104 { 105 return (stdscr); 106 } 107 108 void 109 closevmstat(WINDOW *w) 110 { 111 112 if (w == NULL) 113 return; 114 wclear(w); 115 wrefresh(w); 116 } 117 118 119 static struct nlist namelist[] = { 120 #define X_NCHSTATS 0 121 { "_nchstats" }, 122 #define X_INTRNAMES 1 123 { "_intrnames" }, 124 #define X_EINTRNAMES 2 125 { "_eintrnames" }, 126 #define X_INTRCNT 3 127 { "_intrcnt" }, 128 #define X_EINTRCNT 4 129 { "_eintrcnt" }, 130 #define X_ALLEVENTS 5 131 { "_allevents" }, 132 { "" }, 133 }; 134 135 /* 136 * These constants define where the major pieces are laid out 137 */ 138 #define STATROW 0 /* uses 1 row and 68 cols */ 139 #define STATCOL 2 140 #define MEMROW 9 /* uses 4 rows and 31 cols */ 141 #define MEMCOL 0 142 #define PAGEROW 2 /* uses 4 rows and 26 cols */ 143 #define PAGECOL 54 144 #define INTSROW 9 /* uses all rows to bottom and 17 cols */ 145 #define INTSCOL 40 146 #define INTSCOLEND (VMSTATCOL - 0) 147 #define PROCSROW 2 /* uses 2 rows and 20 cols */ 148 #define PROCSCOL 0 149 #define GENSTATROW 2 /* uses 2 rows and 30 cols */ 150 #define GENSTATCOL 18 151 #define VMSTATROW 7 /* uses 17 rows and 15 cols */ 152 #define VMSTATCOL 64 153 #define GRAPHROW 5 /* uses 3 rows and 51 cols */ 154 #define GRAPHCOL 0 155 #define NAMEIROW 14 /* uses 3 rows and 38 cols */ 156 #define NAMEICOL 0 157 #define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ 158 #define DISKCOL 0 159 #define DISKCOLWIDTH 6 160 #define DISKCOLEND INTSCOL 161 162 typedef struct intr_evcnt intr_evcnt_t; 163 struct intr_evcnt { 164 char *ie_group; 165 char *ie_name; 166 u_int64_t *ie_count; /* kernel address... */ 167 int ie_loc; /* screen row */ 168 } *ie_head; 169 int nevcnt; 170 171 static void 172 get_interrupt_events(void) 173 { 174 struct evcntlist allevents; 175 struct evcnt evcnt, *evptr; 176 intr_evcnt_t *ie; 177 178 if (!NREAD(X_ALLEVENTS, &allevents, sizeof allevents)) 179 return; 180 evptr = allevents.tqh_first; 181 for (; evptr != NULL; evptr = evcnt.ev_list.tqe_next) { 182 if (!KREAD(evptr, &evcnt, sizeof evcnt)) 183 return; 184 if (evcnt.ev_type != EVCNT_TYPE_INTR) 185 continue; 186 ie_head = realloc(ie_head, sizeof *ie * (nevcnt + 1)); 187 if (ie_head == NULL) { 188 error("realloc failed"); 189 die(0); 190 } 191 ie = ie_head + nevcnt; 192 ie->ie_group = malloc(evcnt.ev_grouplen + 1); 193 ie->ie_name = malloc(evcnt.ev_namelen + 1); 194 if (ie->ie_group == NULL || ie->ie_name == NULL) 195 return; 196 if (!KREAD(evcnt.ev_group, ie->ie_group, evcnt.ev_grouplen + 1)) 197 return; 198 if (!KREAD(evcnt.ev_name, ie->ie_name, evcnt.ev_namelen + 1)) 199 return; 200 ie->ie_count = &evptr->ev_count; 201 ie->ie_loc = 0; 202 nevcnt++; 203 } 204 } 205 206 int 207 initvmstat(void) 208 { 209 char *intrnamebuf, *cp; 210 int i; 211 212 if (namelist[0].n_type == 0) { 213 if (kvm_nlist(kd, namelist)) { 214 nlisterr(namelist); 215 return(0); 216 } 217 if (namelist[0].n_type == 0) { 218 error("No namelist"); 219 return(0); 220 } 221 } 222 hertz = stathz ? stathz : hz; 223 if (!dkinit(1)) 224 return(0); 225 226 /* Old style interrupt counts - deprecated */ 227 nintr = (namelist[X_EINTRCNT].n_value - 228 namelist[X_INTRCNT].n_value) / sizeof (long); 229 intrloc = calloc(nintr, sizeof (long)); 230 intrname = calloc(nintr, sizeof (long)); 231 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 232 namelist[X_INTRNAMES].n_value); 233 if (intrnamebuf == NULL || intrname == 0 || intrloc == 0) { 234 error("Out of memory\n"); 235 if (intrnamebuf) 236 free(intrnamebuf); 237 if (intrname) 238 free(intrname); 239 if (intrloc) 240 free(intrloc); 241 nintr = 0; 242 return(0); 243 } 244 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 245 NVAL(X_INTRNAMES)); 246 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 247 intrname[i] = cp; 248 cp += strlen(cp) + 1; 249 } 250 251 /* event counter interrupt counts */ 252 get_interrupt_events(); 253 254 nextintsrow = INTSROW + 1; 255 allocinfo(&s); 256 allocinfo(&s1); 257 allocinfo(&s2); 258 allocinfo(&z); 259 260 getinfo(&s2, RUN); 261 copyinfo(&s2, &s1); 262 return(1); 263 } 264 265 void 266 fetchvmstat(void) 267 { 268 time_t now; 269 270 time(&now); 271 strlcpy(buf, ctime(&now), sizeof(buf)); 272 buf[19] = '\0'; 273 getinfo(&s, state); 274 } 275 276 static void 277 print_ie_title(int i) 278 { 279 int width, name_width, group_width; 280 281 width = INTSCOLEND - (INTSCOL + 9); 282 if (width <= 0) 283 return; 284 285 move(ie_head[i].ie_loc, INTSCOL + 9); 286 group_width = strlen(ie_head[i].ie_group); 287 name_width = strlen(ie_head[i].ie_name); 288 width -= group_width + 1 + name_width; 289 if (width < 0) { 290 /* 291 * Screen to narrow for full strings 292 * This is all rather horrid, in some cases there are a lot 293 * of events in the same group, and in others the event 294 * name is "intr". There are also names which need 7 or 8 295 * columns before they become meaningful. 296 * This is a bad compromise. 297 */ 298 width = -width; 299 group_width -= (width + 1) / 2; 300 name_width -= width / 2; 301 /* some have the 'useful' name "intr", display their group */ 302 if (strcasecmp(ie_head[i].ie_name, "intr") == 0) { 303 group_width += name_width + 1; 304 name_width = 0; 305 } else { 306 if (group_width <= 3 || name_width < 0) { 307 /* don't display group */ 308 name_width += group_width + 1; 309 group_width = 0; 310 } 311 } 312 } 313 314 if (group_width != 0) { 315 printw("%-.*s", group_width, ie_head[i].ie_group); 316 if (name_width != 0) 317 printw(" "); 318 } 319 if (name_width != 0) 320 printw("%-.*s", name_width, ie_head[i].ie_name); 321 } 322 323 void 324 labelvmstat(void) 325 { 326 int i; 327 328 clear(); 329 mvprintw(STATROW, STATCOL + 4, "users Load"); 330 mvprintw(MEMROW, MEMCOL, " memory totals (in kB)"); 331 mvprintw(MEMROW + 1, MEMCOL, " real virtual free"); 332 mvprintw(MEMROW + 2, MEMCOL, "Active"); 333 mvprintw(MEMROW + 3, MEMCOL, "All"); 334 335 mvprintw(PAGEROW, PAGECOL, " PAGING SWAPPING "); 336 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 337 mvprintw(PAGEROW + 2, PAGECOL, "ops"); 338 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 339 340 mvprintw(INTSROW, INTSCOL + 9, "Interrupts"); 341 342 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "forks"); 343 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "fkppw"); 344 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "fksvm"); 345 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "pwait"); 346 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "relck"); 347 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "rlkok"); 348 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "noram"); 349 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "ndcpy"); 350 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "fltcp"); 351 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "zfod"); 352 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "cow"); 353 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "fmin"); 354 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "ftarg"); 355 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "itarg"); 356 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "wired"); 357 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "pdfre"); 358 if (LINES - 1 > VMSTATROW + 16) 359 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "pdscn"); 360 361 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 362 363 mvprintw(GRAPHROW, GRAPHCOL, 364 " . %% Sy . %% Us . %% Ni . %% In . %% Id"); 365 mvprintw(PROCSROW, PROCSCOL, "Proc:r d s w"); 366 mvprintw(GRAPHROW + 1, GRAPHCOL, 367 "| | | | | | | | | | |"); 368 369 mvprintw(NAMEIROW, NAMEICOL, "Namei Sys-cache Proc-cache"); 370 mvprintw(NAMEIROW + 1, NAMEICOL, 371 " Calls hits %% hits %%"); 372 mvprintw(DISKROW, DISKCOL, "Discs:"); 373 if (disk_horiz) { 374 mvprintw(DISKROW + 1, DISKCOL + 1, "seeks"); 375 mvprintw(DISKROW + 2, DISKCOL + 1, "xfers"); 376 mvprintw(DISKROW + 3, DISKCOL + 1, "bytes"); 377 mvprintw(DISKROW + 4, DISKCOL + 1, "%%busy"); 378 } else { 379 mvprintw(DISKROW, DISKCOL + 1 + 1 * DISKCOLWIDTH, "seeks"); 380 mvprintw(DISKROW, DISKCOL + 1 + 2 * DISKCOLWIDTH, "xfers"); 381 mvprintw(DISKROW, DISKCOL + 1 + 3 * DISKCOLWIDTH, "bytes"); 382 mvprintw(DISKROW, DISKCOL + 1 + 4 * DISKCOLWIDTH, "%%busy"); 383 } 384 for (i = 0; i < nintr; i++) { 385 if (intrloc[i] == 0) 386 continue; 387 mvprintw(intrloc[i], INTSCOL + 9, "%-.*s", 388 INTSCOLEND - (INTSCOL + 9), intrname[i]); 389 } 390 for (i = 0; i < nevcnt; i++) { 391 if (ie_head[i].ie_loc == 0) 392 continue; 393 print_ie_title(i); 394 } 395 } 396 397 #define X(fld) {t=s.fld[i]; s.fld[i]-=s1.fld[i]; if(state==TIME) s1.fld[i]=t;} 398 #define Y(fld) {t = s.fld; s.fld -= s1.fld; if(state == TIME) s1.fld = t;} 399 #define Z(fld) {t = s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld; \ 400 if(state == TIME) s1.nchstats.fld = t;} 401 #define PUTRATE(fld, l, c, w) {Y(fld); putint((int)((float)s.fld/etime + 0.5), l, c, w);} 402 #define MAXFAIL 5 403 404 static char cpuchar[CPUSTATES] = { '=' , '>', '-', '%', ' ' }; 405 static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_INTR, CP_IDLE }; 406 407 void 408 showvmstat(void) 409 { 410 float f1, f2; 411 int psiz, inttotal; 412 int i, l, r, c; 413 static int failcnt = 0; 414 static int relabel = 0; 415 static int last_disks = 0; 416 417 if (relabel) { 418 labelvmstat(); 419 relabel = 0; 420 } 421 422 if (state == TIME) { 423 dkswap(); 424 etime = cur.cp_etime; 425 /* < 5 ticks - ignore this trash */ 426 if ((etime * hertz) < 1.0) { 427 if (failcnt++ > MAXFAIL) 428 return; 429 clear(); 430 mvprintw(2, 10, "The alternate system clock has died!"); 431 mvprintw(3, 10, "Reverting to ``pigs'' display."); 432 move(CMDLINE, 0); 433 refresh(); 434 failcnt = 0; 435 sleep(5); 436 command("pigs"); 437 return; 438 } 439 } else 440 etime = 1.0; 441 442 failcnt = 0; 443 inttotal = 0; 444 for (i = 0; i < nintr; i++) { 445 if (s.intrcnt[i] == 0) 446 continue; 447 if (intrloc[i] == 0) { 448 if (nextintsrow == LINES) 449 continue; 450 intrloc[i] = nextintsrow++; 451 mvprintw(intrloc[i], INTSCOL + 9, "%-.*s", 452 INTSCOLEND - (INTSCOL + 9), intrname[i]); 453 } 454 X(intrcnt); 455 l = (int)((float)s.intrcnt[i]/etime + 0.5); 456 inttotal += l; 457 putint(l, intrloc[i], INTSCOL, 8); 458 } 459 for (i = 0; i < nevcnt; i++) { 460 if (s.evcnt[i] == 0) 461 continue; 462 if (ie_head[i].ie_loc == 0) { 463 if (nextintsrow == LINES) 464 continue; 465 ie_head[i].ie_loc = nextintsrow++; 466 print_ie_title(i); 467 } 468 X(evcnt); 469 l = (int)((float)s.evcnt[i]/etime + 0.5); 470 inttotal += l; 471 putint(l, ie_head[i].ie_loc, INTSCOL, 8); 472 } 473 putint(inttotal, INTSROW, INTSCOL, 8); 474 Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss); 475 Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); 476 s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits + 477 nchtotal.ncs_miss + nchtotal.ncs_long; 478 if (state == TIME) 479 s1.nchcount = s.nchcount; 480 481 psiz = 0; 482 f2 = 0.0; 483 484 /* 485 * Last CPU state not calculated yet. 486 */ 487 for (c = 0; c < CPUSTATES; c++) { 488 i = cpuorder[c]; 489 f1 = cputime(i); 490 f2 += f1; 491 l = (int) ((f2 + 1.0) / 2.0) - psiz; 492 if (c == 0) 493 putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0); 494 else 495 putfloat(f1, GRAPHROW, GRAPHCOL + 10 * c + 1, 5, 1, 0); 496 mvhline(GRAPHROW + 2, psiz, cpuchar[c], l); 497 psiz += l; 498 } 499 500 putint(ucount(), STATROW, STATCOL, 3); 501 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 502 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 503 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 504 mvaddstr(STATROW, STATCOL + 53, buf); 505 #define pgtokb(pg) ((pg) * (s.uvmexp.pagesize / 1024)) 506 507 putint(pgtokb(s.uvmexp.active), MEMROW + 2, MEMCOL + 6, 7); 508 putint(pgtokb(s.uvmexp.active + s.uvmexp.swpginuse), /* XXX */ 509 MEMROW + 2, MEMCOL + 16, 7); 510 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free), MEMROW + 3, MEMCOL + 6, 7); 511 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free + s.uvmexp.swpginuse), 512 MEMROW + 3, MEMCOL + 16, 7); 513 putint(pgtokb(s.uvmexp.free), MEMROW + 2, MEMCOL + 24, 7); 514 putint(pgtokb(s.uvmexp.free + s.uvmexp.swpages - s.uvmexp.swpginuse), 515 MEMROW + 3, MEMCOL + 24, 7); 516 putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 517 putint(total.t_dw, PROCSROW + 1, PROCSCOL + 6, 3); 518 putint(total.t_sl, PROCSROW + 1, PROCSCOL + 9, 3); 519 putint(total.t_sw, PROCSROW + 1, PROCSCOL + 12, 3); 520 PUTRATE(uvmexp.forks, VMSTATROW + 0, VMSTATCOL + 3, 6); 521 PUTRATE(uvmexp.forks_ppwait, VMSTATROW + 1, VMSTATCOL + 3, 6); 522 PUTRATE(uvmexp.forks_sharevm, VMSTATROW + 2, VMSTATCOL + 3, 6); 523 PUTRATE(uvmexp.fltpgwait, VMSTATROW + 3, VMSTATCOL + 4, 5); 524 PUTRATE(uvmexp.fltrelck, VMSTATROW + 4, VMSTATCOL + 3, 6); 525 PUTRATE(uvmexp.fltrelckok, VMSTATROW + 5, VMSTATCOL + 3, 6); 526 PUTRATE(uvmexp.fltnoram, VMSTATROW + 6, VMSTATCOL + 3, 6); 527 PUTRATE(uvmexp.fltamcopy, VMSTATROW + 7, VMSTATCOL + 3, 6); 528 PUTRATE(uvmexp.flt_prcopy, VMSTATROW + 8, VMSTATCOL + 3, 6); 529 PUTRATE(uvmexp.flt_przero, VMSTATROW + 9, VMSTATCOL + 3, 6); 530 PUTRATE(uvmexp.flt_acow, VMSTATROW + 10, VMSTATCOL, 9); 531 putint(s.uvmexp.freemin, VMSTATROW + 11, VMSTATCOL, 9); 532 putint(s.uvmexp.freetarg, VMSTATROW + 12, VMSTATCOL, 9); 533 putint(s.uvmexp.inactarg, VMSTATROW + 13, VMSTATCOL, 9); 534 putint(s.uvmexp.wired, VMSTATROW + 14, VMSTATCOL, 9); 535 PUTRATE(uvmexp.pdfreed, VMSTATROW + 15, VMSTATCOL, 9); 536 if (LINES - 1 > VMSTATROW + 16) 537 PUTRATE(uvmexp.pdscans, VMSTATROW + 16, VMSTATCOL, 9); 538 539 PUTRATE(uvmexp.pageins, PAGEROW + 2, PAGECOL + 5, 5); 540 PUTRATE(uvmexp.pdpageouts, PAGEROW + 2, PAGECOL + 10, 5); 541 PUTRATE(uvmexp.swapins, PAGEROW + 2, PAGECOL + 15, 5); 542 PUTRATE(uvmexp.swapouts, PAGEROW + 2, PAGECOL + 20, 5); 543 PUTRATE(uvmexp.pgswapin, PAGEROW + 3, PAGECOL + 5, 5); 544 PUTRATE(uvmexp.pgswapout, PAGEROW + 3, PAGECOL + 10, 5); 545 546 PUTRATE(uvmexp.swtch, GENSTATROW + 1, GENSTATCOL, 4); 547 PUTRATE(uvmexp.traps, GENSTATROW + 1, GENSTATCOL + 4, 6); 548 PUTRATE(uvmexp.syscalls, GENSTATROW + 1, GENSTATCOL + 10, 6); 549 PUTRATE(uvmexp.intrs, GENSTATROW + 1, GENSTATCOL + 16, 5); 550 PUTRATE(uvmexp.softs, GENSTATROW + 1, GENSTATCOL + 21, 5); 551 PUTRATE(uvmexp.faults, GENSTATROW + 1, GENSTATCOL + 26, 6); 552 for (l = 0, i = 0, r = DISKROW, c = DISKCOL; i < dk_ndrive; i++) { 553 if (!dk_select[i]) 554 continue; 555 if (disk_horiz) 556 c += DISKCOLWIDTH; 557 else 558 r++; 559 if (c + DISKCOLWIDTH > DISKCOLEND) { 560 if (disk_horiz && LINES - 1 - DISKROW > 561 (DISKCOLEND - DISKCOL) / DISKCOLWIDTH) { 562 disk_horiz = 0; 563 relabel = 1; 564 } 565 break; 566 } 567 if (r >= LINES - 1) { 568 if (!disk_horiz && LINES - 1 - DISKROW < 569 (DISKCOLEND - DISKCOL) / DISKCOLWIDTH) { 570 disk_horiz = 1; 571 relabel = 1; 572 } 573 break; 574 } 575 l++; 576 577 dinfo(i, r, c); 578 } 579 /* blank out if we lost any disks */ 580 for (i = l; i < last_disks; i++) { 581 int j; 582 if (disk_horiz) 583 c += DISKCOLWIDTH; 584 else 585 r++; 586 for (j = 0; j < 5; j++) { 587 mvprintw(r, c, "%*s", DISKCOLWIDTH, ""); 588 if (disk_horiz) 589 r++; 590 else 591 c += DISKCOLWIDTH; 592 } 593 } 594 last_disks = l; 595 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 596 putint(nchtotal.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9); 597 #define nz(x) ((x) ? (x) : 1) 598 putfloat(nchtotal.ncs_goodhits * 100.0 / nz(s.nchcount), 599 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 600 putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 601 putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), 602 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 603 #undef nz 604 } 605 606 void 607 vmstat_boot(char *args) 608 { 609 copyinfo(&z, &s1); 610 state = BOOT; 611 } 612 613 void 614 vmstat_run(char *args) 615 { 616 copyinfo(&s1, &s2); 617 state = RUN; 618 } 619 620 void 621 vmstat_time(char *args) 622 { 623 state = TIME; 624 } 625 626 void 627 vmstat_zero(char *args) 628 { 629 if (state == RUN) 630 getinfo(&s1, RUN); 631 } 632 633 /* calculate number of users on the system */ 634 static int 635 ucount(void) 636 { 637 static int onusers = -1; 638 static struct utmpentry *oehead = NULL; 639 int nusers = 0; 640 struct utmpentry *ehead; 641 642 nusers = getutentries(NULL, &ehead); 643 if (oehead != ehead) { 644 freeutentries(oehead); 645 oehead = ehead; 646 } 647 648 if (nusers != onusers) { 649 if (nusers == 1) 650 mvprintw(STATROW, STATCOL + 8, " "); 651 else 652 mvprintw(STATROW, STATCOL + 8, "s"); 653 } 654 onusers = nusers; 655 return (nusers); 656 } 657 658 static float 659 cputime(int indx) 660 { 661 double t; 662 int i; 663 664 t = 0; 665 for (i = 0; i < CPUSTATES; i++) 666 t += cur.cp_time[i]; 667 if (t == 0.0) 668 t = 1.0; 669 return (cur.cp_time[indx] * 100.0 / t); 670 } 671 672 static void 673 puthumanint(u_int64_t n, int l, int c, int w) 674 { 675 char b[128]; 676 677 if (move(l, c) != OK) 678 return; 679 if (n == 0) { 680 hline(' ', w); 681 return; 682 } 683 if (humanize_number(b, w, n, "", HN_AUTOSCALE, HN_NOSPACE) == -1 ) { 684 hline('*', w); 685 return; 686 } 687 hline(' ', w - strlen(b)); 688 mvaddstr(l, c + w - strlen(b), b); 689 } 690 691 static void 692 putint(int n, int l, int c, int w) 693 { 694 char b[128]; 695 696 if (move(l, c) != OK) 697 return; 698 if (n == 0) { 699 hline(' ', w); 700 return; 701 } 702 (void)snprintf(b, sizeof b, "%*d", w, n); 703 if (strlen(b) > w) { 704 hline('*', w); 705 return; 706 } 707 addstr(b); 708 } 709 710 static void 711 putfloat(double f, int l, int c, int w, int d, int nz) 712 { 713 char b[128]; 714 715 if (move(l, c) != OK) 716 return; 717 if (nz && f == 0.0) { 718 hline(' ', w); 719 return; 720 } 721 (void)snprintf(b, sizeof b, "%*.*f", w, d, f); 722 if (strlen(b) > w) { 723 hline('*', w); 724 return; 725 } 726 addstr(b); 727 } 728 729 static void 730 getinfo(struct Info *s, enum state st) 731 { 732 int mib[2]; 733 size_t size; 734 int i; 735 736 dkreadstats(); 737 NREAD(X_NCHSTATS, &s->nchstats, sizeof s->nchstats); 738 NREAD(X_INTRCNT, s->intrcnt, nintr * LONG); 739 for (i = 0; i < nevcnt; i++) 740 KREAD(ie_head[i].ie_count, &s->evcnt[i], sizeof s->evcnt[i]); 741 size = sizeof(s->uvmexp); 742 mib[0] = CTL_VM; 743 mib[1] = VM_UVMEXP2; 744 if (sysctl(mib, 2, &s->uvmexp, &size, NULL, 0) < 0) { 745 error("can't get uvmexp: %s\n", strerror(errno)); 746 memset(&s->uvmexp, 0, sizeof(s->uvmexp)); 747 } 748 size = sizeof(s->Total); 749 mib[0] = CTL_VM; 750 mib[1] = VM_METER; 751 if (sysctl(mib, 2, &s->Total, &size, NULL, 0) < 0) { 752 error("Can't get kernel info: %s\n", strerror(errno)); 753 memset(&s->Total, 0, sizeof(s->Total)); 754 } 755 } 756 757 static void 758 allocinfo(struct Info *s) 759 { 760 761 if ((s->intrcnt = calloc(nintr, sizeof(long))) == NULL) { 762 error("calloc failed"); 763 die(0); 764 } 765 if ((s->evcnt = calloc(nevcnt, sizeof(u_int64_t))) == NULL) { 766 error("calloc failed"); 767 die(0); 768 } 769 } 770 771 static void 772 copyinfo(struct Info *from, struct Info *to) 773 { 774 long *intrcnt; 775 u_int64_t *evcnt; 776 777 intrcnt = to->intrcnt; 778 evcnt = to->evcnt; 779 *to = *from; 780 memmove(to->intrcnt = intrcnt, from->intrcnt, nintr * sizeof (int)); 781 memmove(to->evcnt = evcnt, from->evcnt, nevcnt * sizeof *evcnt); 782 } 783 784 static void 785 dinfo(int dn, int r, int c) 786 { 787 double atime; 788 #define ADV if (disk_horiz) r++; else c += DISKCOLWIDTH 789 790 mvprintw(r, c, "%*.*s", DISKCOLWIDTH, DISKCOLWIDTH, dr_name[dn]); 791 ADV; 792 793 putint((int)(cur.dk_seek[dn]/etime+0.5), r, c, DISKCOLWIDTH); 794 ADV; 795 putint((int)((cur.dk_rxfer[dn]+cur.dk_wxfer[dn])/etime+0.5), 796 r, c, DISKCOLWIDTH); 797 ADV; 798 puthumanint((cur.dk_rbytes[dn] + cur.dk_wbytes[dn]) / etime + 0.5, 799 r, c, DISKCOLWIDTH); 800 ADV; 801 802 /* time busy in disk activity */ 803 atime = cur.dk_time[dn].tv_sec + cur.dk_time[dn].tv_usec / 1000000.0; 804 atime = atime * 100.0 / etime; 805 if (atime >= 100) 806 putint(100, r, c, DISKCOLWIDTH); 807 else 808 putfloat(atime, r, c, DISKCOLWIDTH, 1, 1); 809 #undef ADV 810 } 811
Indexes created Fri Sep 26 08:10:20 GMT 2025