vmstat.c revision 69529
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 "$FreeBSD: head/usr.bin/systat/vmstat.c 69529 2000-12-02 20:08:33Z gallatin $"; 40#endif /* not lint */ 41 42/* 43 * Cursed vmstat -- from Robert Elz. 44 */ 45 46#include <sys/param.h> 47#include <sys/stat.h> 48#include <sys/time.h> 49#include <sys/proc.h> 50#include <sys/uio.h> 51#include <sys/namei.h> 52#include <sys/sysctl.h> 53#include <sys/dkstat.h> 54#include <sys/vmmeter.h> 55 56#include <vm/vm_param.h> 57 58#include <ctype.h> 59#include <err.h> 60#include <errno.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_CNT 0 147 { "_cnt" }, 148#define X_INTRNAMES 1 149 { "_intrnames" }, 150#define X_EINTRNAMES 2 151 { "_eintrnames" }, 152#define X_INTRCNT 3 153 { "_intrcnt" }, 154#define X_EINTRCNT 4 155 { "_eintrcnt" }, 156 { "" }, 157}; 158 159/* 160 * These constants define where the major pieces are laid out 161 */ 162#define STATROW 0 /* uses 1 row and 68 cols */ 163#define STATCOL 2 164#define MEMROW 2 /* uses 4 rows and 31 cols */ 165#define MEMCOL 0 166#define PAGEROW 2 /* uses 4 rows and 26 cols */ 167#define PAGECOL 46 168#define INTSROW 6 /* uses all rows to bottom and 17 cols */ 169#define INTSCOL 61 170#define PROCSROW 7 /* uses 2 rows and 20 cols */ 171#define PROCSCOL 0 172#define GENSTATROW 7 /* uses 2 rows and 30 cols */ 173#define GENSTATCOL 20 174#define VMSTATROW 6 /* uses 17 rows and 12 cols */ 175#define VMSTATCOL 48 176#define GRAPHROW 10 /* uses 3 rows and 51 cols */ 177#define GRAPHCOL 0 178#define NAMEIROW 14 /* uses 3 rows and 38 cols */ 179#define NAMEICOL 0 180#define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ 181#define DISKCOL 0 182 183#define DRIVESPACE 7 /* max # for space */ 184 185#define MAXDRIVES DRIVESPACE /* max # to display */ 186 187int 188initkre() 189{ 190 char *intrnamebuf, *cp; 191 int i; 192 193 if (namelist[0].n_type == 0) { 194 if (kvm_nlist(kd, namelist)) { 195 nlisterr(namelist); 196 return(0); 197 } 198 if (namelist[0].n_type == 0) { 199 error("No namelist"); 200 return(0); 201 } 202 } 203 204 if (num_devices = getnumdevs() < 0) { 205 warnx("%s", devstat_errbuf); 206 return(0); 207 } 208 209 cur.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo)); 210 last.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo)); 211 run.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo)); 212 bzero(cur.dinfo, sizeof(struct devinfo)); 213 bzero(last.dinfo, sizeof(struct devinfo)); 214 bzero(run.dinfo, sizeof(struct devinfo)); 215 216 if (dsinit(MAXDRIVES, &cur, &last, &run) != 1) 217 return(0); 218 219 if (nintr == 0) { 220 nintr = (namelist[X_EINTRCNT].n_value - 221 namelist[X_INTRCNT].n_value) / sizeof (long); 222 intrloc = calloc(nintr, sizeof (long)); 223 intrname = calloc(nintr, sizeof (long)); 224 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 225 namelist[X_INTRNAMES].n_value); 226 if (intrnamebuf == 0 || intrname == 0 || intrloc == 0) { 227 error("Out of memory\n"); 228 if (intrnamebuf) 229 free(intrnamebuf); 230 if (intrname) 231 free(intrname); 232 if (intrloc) 233 free(intrloc); 234 nintr = 0; 235 return(0); 236 } 237 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 238 NVAL(X_INTRNAMES)); 239 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 240 intrname[i] = cp; 241 cp += strlen(cp) + 1; 242 } 243 nextintsrow = INTSROW + 2; 244 allocinfo(&s); 245 allocinfo(&s1); 246 allocinfo(&s2); 247 allocinfo(&z); 248 } 249 getinfo(&s2, RUN); 250 copyinfo(&s2, &s1); 251 return(1); 252} 253 254void 255fetchkre() 256{ 257 time_t now; 258 struct tm *tp; 259 260 time(&now); 261 tp = localtime(&now); 262 (void) strftime(buf, sizeof(buf), "%c", tp); 263 buf[16] = '\0'; 264 getinfo(&s, state); 265} 266 267void 268labelkre() 269{ 270 register int i, j; 271 272 clear(); 273 mvprintw(STATROW, STATCOL + 4, "users Load"); 274 mvprintw(MEMROW, MEMCOL, "Mem:KB REAL VIRTUAL"); 275 mvprintw(MEMROW + 1, MEMCOL, " Tot Share Tot Share"); 276 mvprintw(MEMROW + 2, MEMCOL, "Act"); 277 mvprintw(MEMROW + 3, MEMCOL, "All"); 278 279 mvprintw(MEMROW + 1, MEMCOL + 41, "Free"); 280 281 mvprintw(PAGEROW, PAGECOL, " VN PAGER SWAP PAGER "); 282 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 283 mvprintw(PAGEROW + 2, PAGECOL, "count"); 284 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 285 286 mvprintw(INTSROW, INTSCOL + 3, " Interrupts"); 287 mvprintw(INTSROW + 1, INTSCOL + 9, "total"); 288 289 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "cow"); 290 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "wire"); 291 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "act"); 292 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "inact"); 293 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "cache"); 294 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "free"); 295 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "daefr"); 296 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "prcfr"); 297 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "react"); 298 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "pdwake"); 299 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "pdpgs"); 300 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "intrn"); 301 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "buf"); 302 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "dirtybuf"); 303 304 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "desiredvnodes"); 305 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "numvnodes"); 306 mvprintw(VMSTATROW + 17, VMSTATCOL + 10, "freevnodes"); 307 308 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 309 310 mvprintw(GRAPHROW, GRAPHCOL, 311 " . %%Sys . %%Intr . %%User . %%Nice . %%Idle"); 312 mvprintw(PROCSROW, PROCSCOL, "Proc:r p d s w"); 313 mvprintw(GRAPHROW + 1, GRAPHCOL, 314 "| | | | | | | | | | |"); 315 316 mvprintw(NAMEIROW, NAMEICOL, "Namei Name-cache Dir-cache"); 317 mvprintw(NAMEIROW + 1, NAMEICOL, 318 " Calls hits %% hits %%"); 319 mvprintw(DISKROW, DISKCOL, "Disks"); 320 mvprintw(DISKROW + 1, DISKCOL, "KB/t"); 321 mvprintw(DISKROW + 2, DISKCOL, "tps"); 322 mvprintw(DISKROW + 3, DISKCOL, "MB/s"); 323 mvprintw(DISKROW + 4, DISKCOL, "%% busy"); 324 /* 325 * For now, we don't support a fourth disk statistic. So there's 326 * no point in providing a label for it. If someone can think of a 327 * fourth useful disk statistic, there is room to add it. 328 */ 329 /* mvprintw(DISKROW + 4, DISKCOL, " msps"); */ 330 j = 0; 331 for (i = 0; i < num_devices && j < MAXDRIVES; i++) 332 if (dev_select[i].selected) { 333 char tmpstr[80]; 334 sprintf(tmpstr, "%s%d", dev_select[i].device_name, 335 dev_select[i].unit_number); 336 mvprintw(DISKROW, DISKCOL + 5 + 6 * j, 337 " %5.5s", tmpstr); 338 j++; 339 } 340 341 if (j <= 4) { 342 /* 343 * room for extended VM stats 344 */ 345 mvprintw(VMSTATROW + 11, VMSTATCOL - 6, "zfod"); 346 mvprintw(VMSTATROW + 12, VMSTATCOL - 6, "ofod"); 347 mvprintw(VMSTATROW + 13, VMSTATCOL - 6, "%%slo-z"); 348 mvprintw(VMSTATROW + 14, VMSTATCOL - 6, "tfree"); 349 extended_vm_stats = 1; 350 } else { 351 extended_vm_stats = 0; 352 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "zfod"); 353 } 354 355 for (i = 0; i < nintr; i++) { 356 if (intrloc[i] == 0) 357 continue; 358 mvprintw(intrloc[i], INTSCOL + 9, "%-10.10s", intrname[i]); 359 } 360} 361 362#define X(fld) {t=s.fld[i]; s.fld[i]-=s1.fld[i]; if(state==TIME) s1.fld[i]=t;} 363#define Q(fld) {t=cur.fld[i]; cur.fld[i]-=last.fld[i]; if(state==TIME) last.fld[i]=t;} 364#define Y(fld) {t = s.fld; s.fld -= s1.fld; if(state == TIME) s1.fld = t;} 365#define Z(fld) {t = s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld; \ 366 if(state == TIME) s1.nchstats.fld = t;} 367#define PUTRATE(fld, l, c, w) \ 368 Y(fld); \ 369 putint((int)((float)s.fld/etime + 0.5), l, c, w) 370#define MAXFAIL 5 371 372static char cpuchar[CPUSTATES] = { '=' , '+', '>', '-', ' ' }; 373static char cpuorder[CPUSTATES] = { CP_SYS, CP_INTR, CP_USER, CP_NICE, 374 CP_IDLE }; 375 376void 377showkre() 378{ 379 float f1, f2; 380 int psiz, inttotal; 381 int i, l, c; 382 static int failcnt = 0; 383 384 etime = 0; 385 for(i = 0; i < CPUSTATES; i++) { 386 X(time); 387 Q(cp_time); 388 etime += s.time[i]; 389 } 390 if (etime < 5.0) { /* < 5 ticks - ignore this trash */ 391 if (failcnt++ >= MAXFAIL) { 392 clear(); 393 mvprintw(2, 10, "The alternate system clock has died!"); 394 mvprintw(3, 10, "Reverting to ``pigs'' display."); 395 move(CMDLINE, 0); 396 refresh(); 397 failcnt = 0; 398 sleep(5); 399 command("pigs"); 400 } 401 return; 402 } 403 failcnt = 0; 404 etime /= hertz; 405 etime /= ncpu; 406 inttotal = 0; 407 for (i = 0; i < nintr; i++) { 408 if (s.intrcnt[i] == 0) 409 continue; 410 if (intrloc[i] == 0) { 411 if (nextintsrow == LINES) 412 continue; 413 intrloc[i] = nextintsrow++; 414 mvprintw(intrloc[i], INTSCOL + 9, "%-10.10s", 415 intrname[i]); 416 } 417 X(intrcnt); 418 l = (int)((float)s.intrcnt[i]/etime + 0.5); 419 inttotal += l; 420 putint(l, intrloc[i], INTSCOL + 2, 6); 421 } 422 putint(inttotal, INTSROW + 1, INTSCOL + 2, 6); 423 Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss); 424 Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); Z(ncs_neghits); 425 s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits + 426 nchtotal.ncs_miss + nchtotal.ncs_long + nchtotal.ncs_neghits; 427 if (state == TIME) 428 s1.nchcount = s.nchcount; 429 430 psiz = 0; 431 f2 = 0.0; 432 for (c = 0; c < CPUSTATES; c++) { 433 i = cpuorder[c]; 434 f1 = cputime(i); 435 f2 += f1; 436 l = (int) ((f2 + 1.0) / 2.0) - psiz; 437 if (f1 > 99.9) 438 f1 = 99.9; /* no room to display 100.0 */ 439 putfloat(f1, GRAPHROW, GRAPHCOL + 10 * c, 4, 1, 0); 440 move(GRAPHROW + 2, psiz); 441 psiz += l; 442 while (l-- > 0) 443 addch(cpuchar[c]); 444 } 445 446 putint(ucount(), STATROW, STATCOL, 3); 447 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 448 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 449 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 450 mvaddstr(STATROW, STATCOL + 53, buf); 451#define pgtokb(pg) ((pg) * cnt.v_page_size / 1024) 452 putint(pgtokb(total.t_arm), MEMROW + 2, MEMCOL + 3, 8); 453 putint(pgtokb(total.t_armshr), MEMROW + 2, MEMCOL + 11, 8); 454 putint(pgtokb(total.t_avm), MEMROW + 2, MEMCOL + 19, 9); 455 putint(pgtokb(total.t_avmshr), MEMROW + 2, MEMCOL + 28, 9); 456 putint(pgtokb(total.t_rm), MEMROW + 3, MEMCOL + 3, 8); 457 putint(pgtokb(total.t_rmshr), MEMROW + 3, MEMCOL + 11, 8); 458 putint(pgtokb(total.t_vm), MEMROW + 3, MEMCOL + 19, 9); 459 putint(pgtokb(total.t_vmshr), MEMROW + 3, MEMCOL + 28, 9); 460 putint(pgtokb(total.t_free), MEMROW + 2, MEMCOL + 37, 8); 461 putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 462 putint(total.t_pw, PROCSROW + 1, PROCSCOL + 6, 3); 463 putint(total.t_dw, PROCSROW + 1, PROCSCOL + 9, 3); 464 putint(total.t_sl, PROCSROW + 1, PROCSCOL + 12, 3); 465 putint(total.t_sw, PROCSROW + 1, PROCSCOL + 15, 3); 466 if (extended_vm_stats == 0) { 467 PUTRATE(Cnt.v_zfod, VMSTATROW + 0, VMSTATCOL + 4, 5); 468 } 469 PUTRATE(Cnt.v_cow_faults, VMSTATROW + 1, VMSTATCOL + 3, 6); 470 putint(pgtokb(cnt.v_wire_count), VMSTATROW + 2, VMSTATCOL, 9); 471 putint(pgtokb(cnt.v_active_count), VMSTATROW + 3, VMSTATCOL, 9); 472 putint(pgtokb(cnt.v_inactive_count), VMSTATROW + 4, VMSTATCOL, 9); 473 putint(pgtokb(cnt.v_cache_count), VMSTATROW + 5, VMSTATCOL, 9); 474 putint(pgtokb(cnt.v_free_count), VMSTATROW + 6, VMSTATCOL, 9); 475 PUTRATE(Cnt.v_dfree, VMSTATROW + 7, VMSTATCOL, 9); 476 PUTRATE(Cnt.v_pfree, VMSTATROW + 8, VMSTATCOL, 9); 477 PUTRATE(Cnt.v_reactivated, VMSTATROW + 9, VMSTATCOL, 9); 478 PUTRATE(Cnt.v_pdwakeups, VMSTATROW + 10, VMSTATCOL, 9); 479 PUTRATE(Cnt.v_pdpages, VMSTATROW + 11, VMSTATCOL, 9); 480 PUTRATE(Cnt.v_intrans, VMSTATROW + 12, VMSTATCOL, 9); 481 482 if (extended_vm_stats) { 483 PUTRATE(Cnt.v_zfod, VMSTATROW + 11, VMSTATCOL - 16, 9); 484 PUTRATE(Cnt.v_ozfod, VMSTATROW + 12, VMSTATCOL - 16, 9); 485 putint( 486 ((s.Cnt.v_ozfod < s.Cnt.v_zfod) ? 487 s.Cnt.v_ozfod * 100 / s.Cnt.v_zfod : 488 0 489 ), 490 VMSTATROW + 13, 491 VMSTATCOL - 16, 492 9 493 ); 494 PUTRATE(Cnt.v_tfree, VMSTATROW + 14, VMSTATCOL - 16, 9); 495 } 496 497 putint(s.bufspace/1024, VMSTATROW + 13, VMSTATCOL, 9); 498 putint(s.numdirtybuffers, VMSTATROW + 14, VMSTATCOL, 9); 499 putint(s.desiredvnodes, VMSTATROW + 15, VMSTATCOL, 9); 500 putint(s.numvnodes, VMSTATROW + 16, VMSTATCOL, 9); 501 putint(s.freevnodes, VMSTATROW + 17, VMSTATCOL, 9); 502 PUTRATE(Cnt.v_vnodein, PAGEROW + 2, PAGECOL + 5, 5); 503 PUTRATE(Cnt.v_vnodeout, PAGEROW + 2, PAGECOL + 10, 5); 504 PUTRATE(Cnt.v_swapin, PAGEROW + 2, PAGECOL + 17, 5); 505 PUTRATE(Cnt.v_swapout, PAGEROW + 2, PAGECOL + 22, 5); 506 PUTRATE(Cnt.v_vnodepgsin, PAGEROW + 3, PAGECOL + 5, 5); 507 PUTRATE(Cnt.v_vnodepgsout, PAGEROW + 3, PAGECOL + 10, 5); 508 PUTRATE(Cnt.v_swappgsin, PAGEROW + 3, PAGECOL + 17, 5); 509 PUTRATE(Cnt.v_swappgsout, PAGEROW + 3, PAGECOL + 22, 5); 510 PUTRATE(Cnt.v_swtch, GENSTATROW + 1, GENSTATCOL, 5); 511 PUTRATE(Cnt.v_trap, GENSTATROW + 1, GENSTATCOL + 5, 5); 512 PUTRATE(Cnt.v_syscall, GENSTATROW + 1, GENSTATCOL + 10, 5); 513 PUTRATE(Cnt.v_intr, GENSTATROW + 1, GENSTATCOL + 15, 5); 514 PUTRATE(Cnt.v_soft, GENSTATROW + 1, GENSTATCOL + 20, 5); 515 PUTRATE(Cnt.v_vm_faults, GENSTATROW + 1, GENSTATCOL + 25, 5); 516 mvprintw(DISKROW, DISKCOL + 5, " "); 517 for (i = 0, c = 0; i < num_devices && c < MAXDRIVES; i++) 518 if (dev_select[i].selected) { 519 char tmpstr[80]; 520 sprintf(tmpstr, "%s%d", dev_select[i].device_name, 521 dev_select[i].unit_number); 522 mvprintw(DISKROW, DISKCOL + 5 + 6 * c, 523 " %5.5s", tmpstr); 524 switch(state) { 525 case TIME: 526 dinfo(i, ++c, &cur, &last); 527 break; 528 case RUN: 529 dinfo(i, ++c, &cur, &run); 530 break; 531 case BOOT: 532 dinfo(i, ++c, &cur, NULL); 533 break; 534 } 535 } 536 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 537 putint((nchtotal.ncs_goodhits + nchtotal.ncs_neghits), 538 NAMEIROW + 2, NAMEICOL + 9, 9); 539#define nz(x) ((x) ? (x) : 1) 540 putfloat((nchtotal.ncs_goodhits+nchtotal.ncs_neghits) * 541 100.0 / nz(s.nchcount), 542 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 543 putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 544 putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), 545 NAMEIROW + 2, NAMEICOL + 33, 4, 0, 1); 546#undef nz 547} 548 549int 550cmdkre(cmd, args) 551 char *cmd, *args; 552{ 553 int retval; 554 555 if (prefix(cmd, "run")) { 556 retval = 1; 557 copyinfo(&s2, &s1); 558 switch (getdevs(&run)) { 559 case -1: 560 errx(1, "%s", devstat_errbuf); 561 break; 562 case 1: 563 num_devices = run.dinfo->numdevs; 564 generation = run.dinfo->generation; 565 retval = dscmd("refresh", NULL, MAXDRIVES, &cur); 566 if (retval == 2) 567 labelkre(); 568 break; 569 default: 570 break; 571 } 572 state = RUN; 573 return (retval); 574 } 575 if (prefix(cmd, "boot")) { 576 state = BOOT; 577 copyinfo(&z, &s1); 578 return (1); 579 } 580 if (prefix(cmd, "time")) { 581 state = TIME; 582 return (1); 583 } 584 if (prefix(cmd, "zero")) { 585 retval = 1; 586 if (state == RUN) { 587 getinfo(&s1, RUN); 588 switch (getdevs(&run)) { 589 case -1: 590 errx(1, "%s", devstat_errbuf); 591 break; 592 case 1: 593 num_devices = run.dinfo->numdevs; 594 generation = run.dinfo->generation; 595 retval = dscmd("refresh",NULL, MAXDRIVES, &cur); 596 if (retval == 2) 597 labelkre(); 598 break; 599 default: 600 break; 601 } 602 } 603 return (retval); 604 } 605 retval = dscmd(cmd, args, MAXDRIVES, &cur); 606 607 if (retval == 2) 608 labelkre(); 609 610 return(retval); 611} 612 613/* calculate number of users on the system */ 614static int 615ucount() 616{ 617 register int nusers = 0; 618 619 if (ut < 0) 620 return (0); 621 while (read(ut, &utmp, sizeof(utmp))) 622 if (utmp.ut_name[0] != '\0') 623 nusers++; 624 625 lseek(ut, 0L, L_SET); 626 return (nusers); 627} 628 629static float 630cputime(indx) 631 int indx; 632{ 633 double t; 634 register int i; 635 636 t = 0; 637 for (i = 0; i < CPUSTATES; i++) 638 t += s.time[i]; 639 if (t == 0.0) 640 t = 1.0; 641 return (s.time[indx] * 100.0 / t); 642} 643 644static void 645putint(n, l, c, w) 646 int n, l, c, w; 647{ 648 char b[128]; 649 650 move(l, c); 651 if (n == 0) { 652 while (w-- > 0) 653 addch(' '); 654 return; 655 } 656 snprintf(b, sizeof(b), "%*d", w, n); 657 if (strlen(b) > w) { 658 while (w-- > 0) 659 addch('*'); 660 return; 661 } 662 addstr(b); 663} 664 665static void 666putfloat(f, l, c, w, d, nz) 667 double f; 668 int l, c, w, d, nz; 669{ 670 char b[128]; 671 672 move(l, c); 673 if (nz && f == 0.0) { 674 while (--w >= 0) 675 addch(' '); 676 return; 677 } 678 snprintf(b, sizeof(b), "%*.*f", w, d, f); 679 if (strlen(b) > w) 680 snprintf(b, sizeof(b), "%*.0f", w, f); 681 if (strlen(b) > w) { 682 while (--w >= 0) 683 addch('*'); 684 return; 685 } 686 addstr(b); 687} 688 689static void 690putlongdouble(f, l, c, w, d, nz) 691 long double f; 692 int l, c, w, d, nz; 693{ 694 char b[128]; 695 696 move(l, c); 697 if (nz && f == 0.0) { 698 while (--w >= 0) 699 addch(' '); 700 return; 701 } 702 sprintf(b, "%*.*Lf", w, d, f); 703 if (strlen(b) > w) 704 sprintf(b, "%*.0Lf", w, f); 705 if (strlen(b) > w) { 706 while (--w >= 0) 707 addch('*'); 708 return; 709 } 710 addstr(b); 711} 712 713static void 714getinfo(s, st) 715 struct Info *s; 716 enum state st; 717{ 718 struct devinfo *tmp_dinfo; 719 size_t len, size; 720 int mib[2], err; 721 722 len = sizeof(s->time); 723 err = sysctlbyname("kern.cp_time", &s->time, &len, NULL, 0); 724 if (err || len != sizeof(s->time)) 725 perror("kern.cp_time"); 726 727 len = sizeof(cur.cp_time); 728 err = sysctlbyname("kern.cp_time", &cur.cp_time, &len, NULL, 0); 729 if (err || len != sizeof(cur.cp_time)) 730 perror("kern.cp_time"); 731 732 NREAD(X_CNT, &s->Cnt, sizeof s->Cnt); 733 734 len = sizeof(s->bufspace); 735 err = sysctlbyname("vfs.bufspace", &s->bufspace, &len, NULL, 0); 736 if (err || len != sizeof(s->bufspace)) 737 perror("vfs.bufspace"); 738 739 len = sizeof(s->desiredvnodes); 740 err = sysctlbyname("kern.maxvnodes", &s->desiredvnodes, &len, NULL, 0); 741 if (err || len != sizeof(s->desiredvnodes)) 742 perror("kern.maxvnodes"); 743 744 len = sizeof(s->numvnodes); 745 err = sysctlbyname("debug.numvnodes", &s->numvnodes, &len, NULL, 0); 746 if (err || len != sizeof(s->numvnodes)) 747 perror("debug.numvnodes"); 748 749 len = sizeof(s->freevnodes); 750 err = sysctlbyname("debug.freevnodes", &s->freevnodes, &len, NULL, 0); 751 if (err || len != sizeof(s->freevnodes)) 752 perror("debug.freevnodes"); 753 754 len = sizeof(s->nchstats); 755 err = sysctlbyname("vfs.cache.nchstats", &s->nchstats, &len, NULL, 0); 756 if (err || len != sizeof(s->nchstats)) 757 perror("vfs.cache.nchstats"); 758 759 NREAD(X_INTRCNT, s->intrcnt, nintr * LONG); 760 761 len = sizeof(s->numdirtybuffers); 762 err = sysctlbyname("vfs.numdirtybuffers", &s->numdirtybuffers, &len, 763 NULL, 0); 764 765 size = sizeof(s->Total); 766 mib[0] = CTL_VM; 767 mib[1] = VM_METER; 768 if (sysctl(mib, 2, &s->Total, &size, NULL, 0) < 0) { 769 error("Can't get kernel info: %s\n", strerror(errno)); 770 bzero(&s->Total, sizeof(s->Total)); 771 } 772 size = sizeof(ncpu); 773 if (sysctlbyname("hw.ncpu", &ncpu, &size, NULL, 0) < 0 || 774 size != sizeof(ncpu)) 775 ncpu = 1; 776 777 tmp_dinfo = last.dinfo; 778 last.dinfo = cur.dinfo; 779 cur.dinfo = tmp_dinfo; 780 781 last.busy_time = cur.busy_time; 782 switch (getdevs(&cur)) { 783 case -1: 784 errx(1, "%s", devstat_errbuf); 785 break; 786 case 1: 787 num_devices = cur.dinfo->numdevs; 788 generation = cur.dinfo->generation; 789 cmdkre("refresh", NULL); 790 break; 791 default: 792 break; 793 } 794} 795 796static void 797allocinfo(s) 798 struct Info *s; 799{ 800 801 s->intrcnt = (long *) calloc(nintr, sizeof(long)); 802 if (s->intrcnt == NULL) 803 errx(2, "out of memory"); 804} 805 806static void 807copyinfo(from, to) 808 register struct Info *from, *to; 809{ 810 long *intrcnt; 811 812 /* 813 * time, wds, seek, and xfer are malloc'd so we have to 814 * save the pointers before the structure copy and then 815 * copy by hand. 816 */ 817 intrcnt = to->intrcnt; 818 *to = *from; 819 820 bcopy(from->intrcnt, to->intrcnt = intrcnt, nintr * sizeof (int)); 821} 822 823static void 824dinfo(dn, c, now, then) 825 int dn, c; 826 struct statinfo *now, *then; 827{ 828 long double transfers_per_second; 829 long double kb_per_transfer, mb_per_second; 830 long double elapsed_time, device_busy; 831 int di; 832 833 di = dev_select[dn].position; 834 835 elapsed_time = compute_etime(now->busy_time, then ? 836 then->busy_time : 837 now->dinfo->devices[di].dev_creation_time); 838 839 device_busy = compute_etime(now->dinfo->devices[di].busy_time, then ? 840 then->dinfo->devices[di].busy_time : 841 now->dinfo->devices[di].dev_creation_time); 842 843 if (compute_stats(&now->dinfo->devices[di], then ? 844 &then->dinfo->devices[di] : NULL, elapsed_time, 845 NULL, NULL, NULL, 846 &kb_per_transfer, &transfers_per_second, 847 &mb_per_second, NULL, NULL) != 0) 848 errx(1, "%s", devstat_errbuf); 849 850 if ((device_busy == 0) && (transfers_per_second > 5)) 851 /* the device has been 100% busy, fake it because 852 * as long as the device is 100% busy the busy_time 853 * field in the devstat struct is not updated */ 854 device_busy = elapsed_time; 855 if (device_busy > elapsed_time) 856 /* this normally happens after one or more periods 857 * where the device has been 100% busy, correct it */ 858 device_busy = elapsed_time; 859 860 c = DISKCOL + c * 6; 861 putlongdouble(kb_per_transfer, DISKROW + 1, c, 5, 2, 0); 862 putlongdouble(transfers_per_second, DISKROW + 2, c, 5, 0, 0); 863 putlongdouble(mb_per_second, DISKROW + 3, c, 5, 2, 0); 864 putlongdouble(device_busy * 100 / elapsed_time, DISKROW + 4, c, 5, 0, 0); 865} 866