vmstat.c revision 49245
1/*- 2 * Copyright (c) 1983, 1989, 1992, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34#ifndef lint 35#if 0 36static char sccsid[] = "@(#)vmstat.c 8.2 (Berkeley) 1/12/94"; 37#endif 38static const char rcsid[] = 39 "$Id: vmstat.c,v 1.35 1999/03/22 03:44:01 bde Exp $"; 40#endif /* not lint */ 41 42/* 43 * Cursed vmstat -- from Robert Elz. 44 */ 45 46#include <sys/param.h> 47#include <sys/buf.h> 48#include <sys/stat.h> 49#include <sys/time.h> 50#include <sys/proc.h> 51#include <sys/uio.h> 52#include <sys/namei.h> 53#include <sys/sysctl.h> 54#include <sys/dkstat.h> 55#include <sys/vmmeter.h> 56 57#include <vm/vm_param.h> 58 59#include <ctype.h> 60#include <err.h> 61#include <nlist.h> 62#include <paths.h> 63#include <signal.h> 64#include <stdlib.h> 65#include <string.h> 66#include <time.h> 67#include <unistd.h> 68#include <utmp.h> 69#include <devstat.h> 70#include "systat.h" 71#include "extern.h" 72#include "devs.h" 73 74static struct Info { 75 long time[CPUSTATES]; 76 struct vmmeter Cnt; 77 struct vmtotal Total; 78 struct nchstats nchstats; 79 long nchcount; 80 long *intrcnt; 81 int bufspace; 82 int desiredvnodes; 83 long numvnodes; 84 long freevnodes; 85 long numdirtybuffers; 86} s, s1, s2, z; 87 88struct statinfo cur, last, run; 89 90#define cnt s.Cnt 91#define oldcnt s1.Cnt 92#define total s.Total 93#define nchtotal s.nchstats 94#define oldnchtotal s1.nchstats 95 96static enum state { BOOT, TIME, RUN } state = TIME; 97 98static void allocinfo __P((struct Info *)); 99static void copyinfo __P((struct Info *, struct Info *)); 100static float cputime __P((int)); 101static void dinfo __P((int, int, struct statinfo *, struct statinfo *)); 102static void getinfo __P((struct Info *, enum state)); 103static void putint __P((int, int, int, int)); 104static void putfloat __P((double, int, int, int, int, int)); 105static void putlongdouble __P((long double, int, int, int, int, int)); 106static int ucount __P((void)); 107 108static int ncpu; 109static int ut; 110static char buf[26]; 111static time_t t; 112static double etime; 113static int nintr; 114static long *intrloc; 115static char **intrname; 116static int nextintsrow; 117static int extended_vm_stats; 118 119struct utmp utmp; 120 121 122WINDOW * 123openkre() 124{ 125 126 ut = open(_PATH_UTMP, O_RDONLY); 127 if (ut < 0) 128 error("No utmp"); 129 return (stdscr); 130} 131 132void 133closekre(w) 134 WINDOW *w; 135{ 136 137 (void) close(ut); 138 if (w == NULL) 139 return; 140 wclear(w); 141 wrefresh(w); 142} 143 144 145static struct nlist namelist[] = { 146#define X_CPTIME 0 147 { "_cp_time" }, 148#define X_CNT 1 149 { "_cnt" }, 150#define X_BUFFERSPACE 2 151 { "_bufspace" }, 152#define X_NCHSTATS 3 153 { "_nchstats" }, 154#define X_INTRNAMES 4 155 { "_intrnames" }, 156#define X_EINTRNAMES 5 157 { "_eintrnames" }, 158#define X_INTRCNT 6 159 { "_intrcnt" }, 160#define X_EINTRCNT 7 161 { "_eintrcnt" }, 162#define X_DESIREDVNODES 8 163 { "_desiredvnodes" }, 164#define X_NUMVNODES 9 165 { "_numvnodes" }, 166#define X_FREEVNODES 10 167 { "_freevnodes" }, 168#define X_NUMDIRTYBUFFERS 11 169 { "_numdirtybuffers" }, 170 { "" }, 171}; 172 173/* 174 * These constants define where the major pieces are laid out 175 */ 176#define STATROW 0 /* uses 1 row and 68 cols */ 177#define STATCOL 2 178#define MEMROW 2 /* uses 4 rows and 31 cols */ 179#define MEMCOL 0 180#define PAGEROW 2 /* uses 4 rows and 26 cols */ 181#define PAGECOL 46 182#define INTSROW 6 /* uses all rows to bottom and 17 cols */ 183#define INTSCOL 61 184#define PROCSROW 7 /* uses 2 rows and 20 cols */ 185#define PROCSCOL 0 186#define GENSTATROW 7 /* uses 2 rows and 30 cols */ 187#define GENSTATCOL 20 188#define VMSTATROW 6 /* uses 17 rows and 12 cols */ 189#define VMSTATCOL 48 190#define GRAPHROW 10 /* uses 3 rows and 51 cols */ 191#define GRAPHCOL 0 192#define NAMEIROW 14 /* uses 3 rows and 38 cols */ 193#define NAMEICOL 0 194#define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ 195#define DISKCOL 0 196 197#define DRIVESPACE 7 /* max # for space */ 198 199#define MAXDRIVES DRIVESPACE /* max # to display */ 200 201int 202initkre() 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 } 217 218 if (num_devices = getnumdevs() < 0) { 219 warnx("%s", devstat_errbuf); 220 return(0); 221 } 222 223 cur.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo)); 224 last.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo)); 225 run.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo)); 226 bzero(cur.dinfo, sizeof(struct devinfo)); 227 bzero(last.dinfo, sizeof(struct devinfo)); 228 bzero(run.dinfo, sizeof(struct devinfo)); 229 230 if (dsinit(MAXDRIVES, &cur, &last, &run) != 1) 231 return(0); 232 233 if (nintr == 0) { 234 nintr = (namelist[X_EINTRCNT].n_value - 235 namelist[X_INTRCNT].n_value) / sizeof (long); 236 intrloc = calloc(nintr, sizeof (long)); 237 intrname = calloc(nintr, sizeof (long)); 238 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 239 namelist[X_INTRNAMES].n_value); 240 if (intrnamebuf == 0 || intrname == 0 || intrloc == 0) { 241 error("Out of memory\n"); 242 if (intrnamebuf) 243 free(intrnamebuf); 244 if (intrname) 245 free(intrname); 246 if (intrloc) 247 free(intrloc); 248 nintr = 0; 249 return(0); 250 } 251 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 252 NVAL(X_INTRNAMES)); 253 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 254 intrname[i] = cp; 255 cp += strlen(cp) + 1; 256 } 257 nextintsrow = INTSROW + 2; 258 allocinfo(&s); 259 allocinfo(&s1); 260 allocinfo(&s2); 261 allocinfo(&z); 262 } 263 getinfo(&s2, RUN); 264 copyinfo(&s2, &s1); 265 return(1); 266} 267 268void 269fetchkre() 270{ 271 time_t now; 272 struct tm *tp; 273 274 time(&now); 275 tp = localtime(&now); 276 (void) strftime(buf, sizeof(buf), "%c", tp); 277 buf[16] = '\0'; 278 getinfo(&s, state); 279} 280 281void 282labelkre() 283{ 284 register int i, j; 285 286 clear(); 287 mvprintw(STATROW, STATCOL + 4, "users Load"); 288 mvprintw(MEMROW, MEMCOL, "Mem:KB REAL VIRTUAL"); 289 mvprintw(MEMROW + 1, MEMCOL, " Tot Share Tot Share"); 290 mvprintw(MEMROW + 2, MEMCOL, "Act"); 291 mvprintw(MEMROW + 3, MEMCOL, "All"); 292 293 mvprintw(MEMROW + 1, MEMCOL + 41, "Free"); 294 295 mvprintw(PAGEROW, PAGECOL, " VN PAGER SWAP PAGER "); 296 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 297 mvprintw(PAGEROW + 2, PAGECOL, "count"); 298 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 299 300 mvprintw(INTSROW, INTSCOL + 3, " Interrupts"); 301 mvprintw(INTSROW + 1, INTSCOL + 9, "total"); 302 303 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "cow"); 304 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "wire"); 305 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "act"); 306 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "inact"); 307 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "cache"); 308 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "free"); 309 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "daefr"); 310 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "prcfr"); 311 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "react"); 312 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "pdwake"); 313 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "pdpgs"); 314 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "intrn"); 315 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "buf"); 316 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "dirtybuf"); 317 318 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "desiredvnodes"); 319 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "numvnodes"); 320 mvprintw(VMSTATROW + 17, VMSTATCOL + 10, "freevnodes"); 321 322 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 323 324 mvprintw(GRAPHROW, GRAPHCOL, 325 " . %%Sys . %%Intr . %%User . %%Nice . %%Idle"); 326 mvprintw(PROCSROW, PROCSCOL, "Proc:r p d s w"); 327 mvprintw(GRAPHROW + 1, GRAPHCOL, 328 "| | | | | | | | | | |"); 329 330 mvprintw(NAMEIROW, NAMEICOL, "Namei Name-cache Dir-cache"); 331 mvprintw(NAMEIROW + 1, NAMEICOL, 332 " Calls hits %% hits %%"); 333 mvprintw(DISKROW, DISKCOL, "Discs"); 334 mvprintw(DISKROW + 1, DISKCOL, "KB/t"); 335 mvprintw(DISKROW + 2, DISKCOL, "tps"); 336 mvprintw(DISKROW + 3, DISKCOL, "MB/s"); 337 mvprintw(DISKROW + 4, DISKCOL, "%% busy"); 338 /* 339 * For now, we don't support a fourth disk statistic. So there's 340 * no point in providing a label for it. If someone can think of a 341 * fourth useful disk statistic, there is room to add it. 342 */ 343 /* mvprintw(DISKROW + 4, DISKCOL, " msps"); */ 344 j = 0; 345 for (i = 0; i < num_devices && j < MAXDRIVES; i++) 346 if (dev_select[i].selected) { 347 char tmpstr[80]; 348 sprintf(tmpstr, "%s%d", dev_select[i].device_name, 349 dev_select[i].unit_number); 350 mvprintw(DISKROW, DISKCOL + 5 + 6 * j, 351 " %5.5s", tmpstr); 352 j++; 353 } 354 355 if (j <= 4) { 356 /* 357 * room for extended VM stats 358 */ 359 mvprintw(VMSTATROW + 11, VMSTATCOL - 6, "zfod"); 360 mvprintw(VMSTATROW + 12, VMSTATCOL - 6, "ofod"); 361 mvprintw(VMSTATROW + 13, VMSTATCOL - 6, "%%slo-z"); 362 mvprintw(VMSTATROW + 14, VMSTATCOL - 6, "tfree"); 363 extended_vm_stats = 1; 364 } else { 365 extended_vm_stats = 0; 366 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "zfod"); 367 } 368 369 for (i = 0; i < nintr; i++) { 370 if (intrloc[i] == 0) 371 continue; 372 mvprintw(intrloc[i], INTSCOL + 9, "%-10.10s", intrname[i]); 373 } 374} 375 376#define X(fld) {t=s.fld[i]; s.fld[i]-=s1.fld[i]; if(state==TIME) s1.fld[i]=t;} 377#define Q(fld) {t=cur.fld[i]; cur.fld[i]-=last.fld[i]; if(state==TIME) last.fld[i]=t;} 378#define Y(fld) {t = s.fld; s.fld -= s1.fld; if(state == TIME) s1.fld = t;} 379#define Z(fld) {t = s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld; \ 380 if(state == TIME) s1.nchstats.fld = t;} 381#define PUTRATE(fld, l, c, w) \ 382 Y(fld); \ 383 putint((int)((float)s.fld/etime + 0.5), l, c, w) 384#define MAXFAIL 5 385 386static char cpuchar[CPUSTATES] = { '=' , '+', '>', '-', ' ' }; 387static char cpuorder[CPUSTATES] = { CP_SYS, CP_INTR, CP_USER, CP_NICE, 388 CP_IDLE }; 389 390void 391showkre() 392{ 393 float f1, f2; 394 int psiz, inttotal; 395 int i, l, c; 396 static int failcnt = 0; 397 398 etime = 0; 399 for(i = 0; i < CPUSTATES; i++) { 400 X(time); 401 Q(cp_time); 402 etime += s.time[i]; 403 } 404 if (etime < 5.0) { /* < 5 ticks - ignore this trash */ 405 if (failcnt++ >= MAXFAIL) { 406 clear(); 407 mvprintw(2, 10, "The alternate system clock has died!"); 408 mvprintw(3, 10, "Reverting to ``pigs'' display."); 409 move(CMDLINE, 0); 410 refresh(); 411 failcnt = 0; 412 sleep(5); 413 command("pigs"); 414 } 415 return; 416 } 417 failcnt = 0; 418 etime /= hertz; 419 etime /= ncpu; 420 inttotal = 0; 421 for (i = 0; i < nintr; i++) { 422 if (s.intrcnt[i] == 0) 423 continue; 424 if (intrloc[i] == 0) { 425 if (nextintsrow == LINES) 426 continue; 427 intrloc[i] = nextintsrow++; 428 mvprintw(intrloc[i], INTSCOL + 9, "%-10.10s", 429 intrname[i]); 430 } 431 X(intrcnt); 432 l = (int)((float)s.intrcnt[i]/etime + 0.5); 433 inttotal += l; 434 putint(l, intrloc[i], INTSCOL + 2, 6); 435 } 436 putint(inttotal, INTSROW + 1, INTSCOL + 2, 6); 437 Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss); 438 Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); Z(ncs_neghits); 439 s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits + 440 nchtotal.ncs_miss + nchtotal.ncs_long + nchtotal.ncs_neghits; 441 if (state == TIME) 442 s1.nchcount = s.nchcount; 443 444 psiz = 0; 445 f2 = 0.0; 446 for (c = 0; c < CPUSTATES; c++) { 447 i = cpuorder[c]; 448 f1 = cputime(i); 449 f2 += f1; 450 l = (int) ((f2 + 1.0) / 2.0) - psiz; 451 if (f1 > 99.9) 452 f1 = 99.9; /* no room to display 100.0 */ 453 putfloat(f1, GRAPHROW, GRAPHCOL + 10 * c, 4, 1, 0); 454 move(GRAPHROW + 2, psiz); 455 psiz += l; 456 while (l-- > 0) 457 addch(cpuchar[c]); 458 } 459 460 putint(ucount(), STATROW, STATCOL, 3); 461 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 462 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 463 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 464 mvaddstr(STATROW, STATCOL + 53, buf); 465#define pgtokb(pg) ((pg) * cnt.v_page_size / 1024) 466 putint(pgtokb(total.t_arm), MEMROW + 2, MEMCOL + 3, 8); 467 putint(pgtokb(total.t_armshr), MEMROW + 2, MEMCOL + 11, 8); 468 putint(pgtokb(total.t_avm), MEMROW + 2, MEMCOL + 19, 9); 469 putint(pgtokb(total.t_avmshr), MEMROW + 2, MEMCOL + 28, 9); 470 putint(pgtokb(total.t_rm), MEMROW + 3, MEMCOL + 3, 8); 471 putint(pgtokb(total.t_rmshr), MEMROW + 3, MEMCOL + 11, 8); 472 putint(pgtokb(total.t_vm), MEMROW + 3, MEMCOL + 19, 9); 473 putint(pgtokb(total.t_vmshr), MEMROW + 3, MEMCOL + 28, 9); 474 putint(pgtokb(total.t_free), MEMROW + 2, MEMCOL + 37, 8); 475 putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 476 putint(total.t_pw, PROCSROW + 1, PROCSCOL + 6, 3); 477 putint(total.t_dw, PROCSROW + 1, PROCSCOL + 9, 3); 478 putint(total.t_sl, PROCSROW + 1, PROCSCOL + 12, 3); 479 putint(total.t_sw, PROCSROW + 1, PROCSCOL + 15, 3); 480 if (extended_vm_stats == 0) { 481 PUTRATE(Cnt.v_zfod, VMSTATROW + 0, VMSTATCOL + 4, 5); 482 } 483 PUTRATE(Cnt.v_cow_faults, VMSTATROW + 1, VMSTATCOL + 3, 6); 484 putint(pgtokb(cnt.v_wire_count), VMSTATROW + 2, VMSTATCOL, 9); 485 putint(pgtokb(cnt.v_active_count), VMSTATROW + 3, VMSTATCOL, 9); 486 putint(pgtokb(cnt.v_inactive_count), VMSTATROW + 4, VMSTATCOL, 9); 487 putint(pgtokb(cnt.v_cache_count), VMSTATROW + 5, VMSTATCOL, 9); 488 putint(pgtokb(cnt.v_free_count), VMSTATROW + 6, VMSTATCOL, 9); 489 PUTRATE(Cnt.v_dfree, VMSTATROW + 7, VMSTATCOL, 9); 490 PUTRATE(Cnt.v_pfree, VMSTATROW + 8, VMSTATCOL, 9); 491 PUTRATE(Cnt.v_reactivated, VMSTATROW + 9, VMSTATCOL, 9); 492 PUTRATE(Cnt.v_pdwakeups, VMSTATROW + 10, VMSTATCOL, 9); 493 PUTRATE(Cnt.v_pdpages, VMSTATROW + 11, VMSTATCOL, 9); 494 PUTRATE(Cnt.v_intrans, VMSTATROW + 12, VMSTATCOL, 9); 495 496 if (extended_vm_stats) { 497 PUTRATE(Cnt.v_zfod, VMSTATROW + 11, VMSTATCOL - 16, 9); 498 PUTRATE(Cnt.v_ozfod, VMSTATROW + 12, VMSTATCOL - 16, 9); 499 putint( 500 ((s.Cnt.v_ozfod < s.Cnt.v_zfod) ? 501 s.Cnt.v_ozfod * 100 / s.Cnt.v_zfod : 502 0 503 ), 504 VMSTATROW + 13, 505 VMSTATCOL - 16, 506 9 507 ); 508 PUTRATE(Cnt.v_tfree, VMSTATROW + 14, VMSTATCOL - 16, 9); 509 } 510 511 putint(s.bufspace/1024, VMSTATROW + 13, VMSTATCOL, 9); 512 putint(s.numdirtybuffers, VMSTATROW + 14, VMSTATCOL, 9); 513 putint(s.desiredvnodes, VMSTATROW + 15, VMSTATCOL, 9); 514 putint(s.numvnodes, VMSTATROW + 16, VMSTATCOL, 9); 515 putint(s.freevnodes, VMSTATROW + 17, VMSTATCOL, 9); 516 PUTRATE(Cnt.v_vnodein, PAGEROW + 2, PAGECOL + 5, 5); 517 PUTRATE(Cnt.v_vnodeout, PAGEROW + 2, PAGECOL + 10, 5); 518 PUTRATE(Cnt.v_swapin, PAGEROW + 2, PAGECOL + 17, 5); 519 PUTRATE(Cnt.v_swapout, PAGEROW + 2, PAGECOL + 22, 5); 520 PUTRATE(Cnt.v_vnodepgsin, PAGEROW + 3, PAGECOL + 5, 5); 521 PUTRATE(Cnt.v_vnodepgsout, PAGEROW + 3, PAGECOL + 10, 5); 522 PUTRATE(Cnt.v_swappgsin, PAGEROW + 3, PAGECOL + 17, 5); 523 PUTRATE(Cnt.v_swappgsout, PAGEROW + 3, PAGECOL + 22, 5); 524 PUTRATE(Cnt.v_swtch, GENSTATROW + 1, GENSTATCOL, 5); 525 PUTRATE(Cnt.v_trap, GENSTATROW + 1, GENSTATCOL + 5, 5); 526 PUTRATE(Cnt.v_syscall, GENSTATROW + 1, GENSTATCOL + 10, 5); 527 PUTRATE(Cnt.v_intr, GENSTATROW + 1, GENSTATCOL + 15, 5); 528 PUTRATE(Cnt.v_soft, GENSTATROW + 1, GENSTATCOL + 20, 5); 529 PUTRATE(Cnt.v_vm_faults, GENSTATROW + 1, GENSTATCOL + 25, 5); 530 mvprintw(DISKROW, DISKCOL + 5, " "); 531 for (i = 0, c = 0; i < num_devices && c < MAXDRIVES; i++) 532 if (dev_select[i].selected) { 533 char tmpstr[80]; 534 sprintf(tmpstr, "%s%d", dev_select[i].device_name, 535 dev_select[i].unit_number); 536 mvprintw(DISKROW, DISKCOL + 5 + 6 * c, 537 " %5.5s", tmpstr); 538 switch(state) { 539 case TIME: 540 dinfo(i, ++c, &cur, &last); 541 break; 542 case RUN: 543 dinfo(i, ++c, &cur, &run); 544 break; 545 case BOOT: 546 dinfo(i, ++c, &cur, NULL); 547 break; 548 } 549 } 550 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 551 putint((nchtotal.ncs_goodhits + nchtotal.ncs_neghits), 552 NAMEIROW + 2, NAMEICOL + 9, 9); 553#define nz(x) ((x) ? (x) : 1) 554 putfloat((nchtotal.ncs_goodhits+nchtotal.ncs_neghits) * 555 100.0 / nz(s.nchcount), 556 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 557 putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 558 putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), 559 NAMEIROW + 2, NAMEICOL + 33, 4, 0, 1); 560#undef nz 561} 562 563int 564cmdkre(cmd, args) 565 char *cmd, *args; 566{ 567 int retval; 568 569 if (prefix(cmd, "run")) { 570 retval = 1; 571 copyinfo(&s2, &s1); 572 switch (getdevs(&run)) { 573 case -1: 574 errx(1, "%s", devstat_errbuf); 575 break; 576 case 1: 577 num_devices = run.dinfo->numdevs; 578 generation = run.dinfo->generation; 579 retval = dscmd("refresh", NULL, MAXDRIVES, &cur); 580 if (retval == 2) 581 labelkre(); 582 break; 583 default: 584 break; 585 } 586 state = RUN; 587 return (retval); 588 } 589 if (prefix(cmd, "boot")) { 590 state = BOOT; 591 copyinfo(&z, &s1); 592 return (1); 593 } 594 if (prefix(cmd, "time")) { 595 state = TIME; 596 return (1); 597 } 598 if (prefix(cmd, "zero")) { 599 retval = 1; 600 if (state == RUN) { 601 getinfo(&s1, RUN); 602 switch (getdevs(&run)) { 603 case -1: 604 errx(1, "%s", devstat_errbuf); 605 break; 606 case 1: 607 num_devices = run.dinfo->numdevs; 608 generation = run.dinfo->generation; 609 retval = dscmd("refresh",NULL, MAXDRIVES, &cur); 610 if (retval == 2) 611 labelkre(); 612 break; 613 default: 614 break; 615 } 616 } 617 return (retval); 618 } 619 retval = dscmd(cmd, args, MAXDRIVES, &cur); 620 621 if (retval == 2) 622 labelkre(); 623 624 return(retval); 625} 626 627/* calculate number of users on the system */ 628static int 629ucount() 630{ 631 register int nusers = 0; 632 633 if (ut < 0) 634 return (0); 635 while (read(ut, &utmp, sizeof(utmp))) 636 if (utmp.ut_name[0] != '\0') 637 nusers++; 638 639 lseek(ut, 0L, L_SET); 640 return (nusers); 641} 642 643static float 644cputime(indx) 645 int indx; 646{ 647 double t; 648 register int i; 649 650 t = 0; 651 for (i = 0; i < CPUSTATES; i++) 652 t += s.time[i]; 653 if (t == 0.0) 654 t = 1.0; 655 return (s.time[indx] * 100.0 / t); 656} 657 658static void 659putint(n, l, c, w) 660 int n, l, c, w; 661{ 662 char b[128]; 663 664 move(l, c); 665 if (n == 0) { 666 while (w-- > 0) 667 addch(' '); 668 return; 669 } 670 snprintf(b, sizeof(b), "%*d", w, n); 671 if (strlen(b) > w) { 672 while (w-- > 0) 673 addch('*'); 674 return; 675 } 676 addstr(b); 677} 678 679static void 680putfloat(f, l, c, w, d, nz) 681 double f; 682 int l, c, w, d, nz; 683{ 684 char b[128]; 685 686 move(l, c); 687 if (nz && f == 0.0) { 688 while (--w >= 0) 689 addch(' '); 690 return; 691 } 692 snprintf(b, sizeof(b), "%*.*f", w, d, f); 693 if (strlen(b) > w) 694 snprintf(b, sizeof(b), "%*.0f", w, f); 695 if (strlen(b) > w) { 696 while (--w >= 0) 697 addch('*'); 698 return; 699 } 700 addstr(b); 701} 702 703static void 704putlongdouble(f, l, c, w, d, nz) 705 long double f; 706 int l, c, w, d, nz; 707{ 708 char b[128]; 709 710 move(l, c); 711 if (nz && f == 0.0) { 712 while (--w >= 0) 713 addch(' '); 714 return; 715 } 716 sprintf(b, "%*.*Lf", w, d, f); 717 if (strlen(b) > w) 718 sprintf(b, "%*.0Lf", w, f); 719 if (strlen(b) > w) { 720 while (--w >= 0) 721 addch('*'); 722 return; 723 } 724 addstr(b); 725} 726 727static void 728getinfo(s, st) 729 struct Info *s; 730 enum state st; 731{ 732 struct devinfo *tmp_dinfo; 733 int mib[2], size; 734 extern int errno; 735 736 NREAD(X_CPTIME, s->time, sizeof s->time); 737 NREAD(X_CPTIME, cur.cp_time, sizeof(cur.cp_time)); 738 NREAD(X_CNT, &s->Cnt, sizeof s->Cnt); 739 NREAD(X_BUFFERSPACE, &s->bufspace, sizeof(s->bufspace)); 740 NREAD(X_DESIREDVNODES, &s->desiredvnodes, sizeof(s->desiredvnodes)); 741 NREAD(X_NUMVNODES, &s->numvnodes, LONG); 742 NREAD(X_FREEVNODES, &s->freevnodes, LONG); 743 NREAD(X_NCHSTATS, &s->nchstats, sizeof s->nchstats); 744 NREAD(X_INTRCNT, s->intrcnt, nintr * LONG); 745 NREAD(X_NUMDIRTYBUFFERS, &s->numdirtybuffers, sizeof(s->numdirtybuffers)); 746 size = sizeof(s->Total); 747 mib[0] = CTL_VM; 748 mib[1] = VM_METER; 749 if (sysctl(mib, 2, &s->Total, &size, NULL, 0) < 0) { 750 error("Can't get kernel info: %s\n", strerror(errno)); 751 bzero(&s->Total, sizeof(s->Total)); 752 } 753 size = sizeof(ncpu); 754 if (sysctlbyname("hw.ncpu", &ncpu, &size, NULL, 0) < 0) 755 ncpu = 1; 756 757 tmp_dinfo = last.dinfo; 758 last.dinfo = cur.dinfo; 759 cur.dinfo = tmp_dinfo; 760 761 last.busy_time = cur.busy_time; 762 switch (getdevs(&cur)) { 763 case -1: 764 errx(1, "%s", devstat_errbuf); 765 break; 766 case 1: 767 num_devices = cur.dinfo->numdevs; 768 generation = cur.dinfo->generation; 769 cmdkre("refresh", NULL); 770 break; 771 default: 772 break; 773 } 774} 775 776static void 777allocinfo(s) 778 struct Info *s; 779{ 780 781 s->intrcnt = (long *) calloc(nintr, sizeof(long)); 782 if (s->intrcnt == NULL) 783 errx(2, "out of memory"); 784} 785 786static void 787copyinfo(from, to) 788 register struct Info *from, *to; 789{ 790 long *intrcnt; 791 792 /* 793 * time, wds, seek, and xfer are malloc'd so we have to 794 * save the pointers before the structure copy and then 795 * copy by hand. 796 */ 797 intrcnt = to->intrcnt; 798 *to = *from; 799 800 bcopy(from->intrcnt, to->intrcnt = intrcnt, nintr * sizeof (int)); 801} 802 803static void 804dinfo(dn, c, now, then) 805 int dn, c; 806 struct statinfo *now, *then; 807{ 808 long double transfers_per_second; 809 long double kb_per_transfer, mb_per_second; 810 long double elapsed_time, device_busy; 811 int di; 812 813 di = dev_select[dn].position; 814 815 elapsed_time = compute_etime(now->busy_time, then ? 816 then->busy_time : 817 now->dinfo->devices[di].dev_creation_time); 818 819 device_busy = compute_etime(now->dinfo->devices[di].busy_time, then ? 820 then->dinfo->devices[di].busy_time : 821 now->dinfo->devices[di].dev_creation_time); 822 823 if (compute_stats(&now->dinfo->devices[di], then ? 824 &then->dinfo->devices[di] : NULL, elapsed_time, 825 NULL, NULL, NULL, 826 &kb_per_transfer, &transfers_per_second, 827 &mb_per_second, NULL, NULL) != 0) 828 errx(1, "%s", devstat_errbuf); 829 830 if ((device_busy == 0) && (transfers_per_second > 5)) 831 /* the device has been 100% busy, fake it because 832 * as long as the device is 100% busy the busy_time 833 * field in the devstat struct is not updated */ 834 device_busy = elapsed_time; 835 if (device_busy > elapsed_time) 836 /* this normally happens after one or more periods 837 * where the device has been 100% busy, correct it */ 838 device_busy = elapsed_time; 839 840 c = DISKCOL + c * 6; 841 putlongdouble(kb_per_transfer, DISKROW + 1, c, 5, 2, 0); 842 putlongdouble(transfers_per_second, DISKROW + 2, c, 5, 0, 0); 843 putlongdouble(mb_per_second, DISKROW + 3, c, 5, 2, 0); 844 putlongdouble(device_busy * 100 / elapsed_time, DISKROW + 4, c, 5, 0, 0); 845} 846