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 36 static char sccsid[] = "@(#)vmstat.c 8.2 (Berkeley) 1/12/94"; 37 #endif 38 static const char rcsid[] = 39 "$Id: vmstat.c,v 1.22 1997/08/13 06:45:11 charnier Exp $"; 40 #endif /* not lint */ 41 42 /* 43 * Cursed vmstat -- from Robert Elz. 44 */ 45 46 #include <sys/param.h> 47 #include <sys/dkstat.h> 48 #include <sys/buf.h> 49 #include <sys/stat.h> 50 #include <sys/time.h> 51 #include <sys/proc.h> 52 #include <sys/uio.h> 53 #include <sys/namei.h> 54 #include <sys/sysctl.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 "systat.h" 70 #include "extern.h" 71 72 static struct Info { 73 long time[CPUSTATES]; 74 struct vmmeter Cnt; 75 struct vmtotal Total; 76 long *dk_time; 77 long *dk_wds; 78 long *dk_seek; 79 long *dk_xfer; 80 int dk_busy; 81 struct nchstats nchstats; 82 long nchcount; 83 long *intrcnt; 84 int bufspace; 85 int desiredvnodes; 86 int numvnodes; 87 int freevnodes; 88 } s, s1, s2, z; 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 96 static enum state { BOOT, TIME, RUN } state = TIME; 97 98 static void allocinfo __P((struct Info *)); 99 static void copyinfo __P((struct Info *, struct Info *)); 100 static float cputime __P((int)); 101 static void dinfo __P((int, int)); 102 static void getinfo __P((struct Info *, enum state)); 103 static void putint __P((int, int, int, int)); 104 static void putfloat __P((double, int, int, int, int, int)); 105 static int ucount __P((void)); 106 107 static int ut; 108 static char buf[26]; 109 static time_t t; 110 static double etime; 111 static int nintr; 112 static long *intrloc; 113 static char **intrname; 114 static int nextintsrow; 115 116 struct utmp utmp; 117 118 119 WINDOW * 120 openkre() 121 { 122 123 ut = open(_PATH_UTMP, O_RDONLY); 124 if (ut < 0) 125 error("No utmp"); 126 return (stdscr); 127 } 128 129 void 130 closekre(w) 131 WINDOW *w; 132 { 133 134 (void) close(ut); 135 if (w == NULL) 136 return; 137 wclear(w); 138 wrefresh(w); 139 } 140 141 142 static struct nlist namelist[] = { 143 #define X_CPTIME 0 144 { "_cp_time" }, 145 #define X_CNT 1 146 { "_cnt" }, 147 #define X_BUFFERSPACE 2 148 { "_bufspace" }, 149 #define X_DK_BUSY 3 150 { "_dk_busy" }, 151 #define X_DK_TIME 4 152 { "_dk_time" }, 153 #define X_DK_XFER 5 154 { "_dk_xfer" }, 155 #define X_DK_WDS 6 156 { "_dk_wds" }, 157 #define X_DK_SEEK 7 158 { "_dk_seek" }, 159 #define X_NCHSTATS 8 160 { "_nchstats" }, 161 #define X_INTRNAMES 9 162 { "_intrnames" }, 163 #define X_EINTRNAMES 10 164 { "_eintrnames" }, 165 #define X_INTRCNT 11 166 { "_intrcnt" }, 167 #define X_EINTRCNT 12 168 { "_eintrcnt" }, 169 #define X_DESIREDVNODES 13 170 { "_desiredvnodes" }, 171 #define X_NUMVNODES 14 172 { "_numvnodes" }, 173 #define X_FREEVNODES 15 174 { "_freevnodes" }, 175 { "" }, 176 }; 177 178 /* 179 * These constants define where the major pieces are laid out 180 */ 181 #define STATROW 0 /* uses 1 row and 68 cols */ 182 #define STATCOL 2 183 #define MEMROW 2 /* uses 4 rows and 31 cols */ 184 #define MEMCOL 0 185 #define PAGEROW 2 /* uses 4 rows and 26 cols */ 186 #define PAGECOL 46 187 #define INTSROW 6 /* uses all rows to bottom and 17 cols */ 188 #define INTSCOL 61 189 #define PROCSROW 7 /* uses 2 rows and 20 cols */ 190 #define PROCSCOL 0 191 #define GENSTATROW 7 /* uses 2 rows and 30 cols */ 192 #define GENSTATCOL 20 193 #define VMSTATROW 6 /* uses 17 rows and 12 cols */ 194 #define VMSTATCOL 48 195 #define GRAPHROW 10 /* uses 3 rows and 51 cols */ 196 #define GRAPHCOL 0 197 #define NAMEIROW 14 /* uses 3 rows and 38 cols */ 198 #define NAMEICOL 0 199 #define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ 200 #define DISKCOL 0 201 202 #define DRIVESPACE 9 /* max # for space */ 203 204 #if DK_NDRIVE > DRIVESPACE 205 #define MAXDRIVES DRIVESPACE /* max # to display */ 206 #else 207 #define MAXDRIVES DK_NDRIVE /* max # to display */ 208 #endif 209 210 int 211 initkre() 212 { 213 char *intrnamebuf, *cp; 214 int i; 215 static int once = 0; 216 217 if (namelist[0].n_type == 0) { 218 if (kvm_nlist(kd, namelist)) { 219 nlisterr(namelist); 220 return(0); 221 } 222 if (namelist[0].n_type == 0) { 223 error("No namelist"); 224 return(0); 225 } 226 } 227 if (! dkinit()) 228 return(0); 229 if (dk_ndrive && !once) { 230 #define allocate(e, t) \ 231 s./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 232 s1./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 233 s2./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 234 z./**/e = (t *)calloc(dk_ndrive, sizeof (t)); 235 allocate(dk_time, long); 236 allocate(dk_wds, long); 237 allocate(dk_seek, long); 238 allocate(dk_xfer, long); 239 once = 1; 240 #undef allocate 241 } 242 if (nintr == 0) { 243 nintr = (namelist[X_EINTRCNT].n_value - 244 namelist[X_INTRCNT].n_value) / sizeof (long); 245 intrloc = calloc(nintr, sizeof (long)); 246 intrname = calloc(nintr, sizeof (long)); 247 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 248 namelist[X_INTRNAMES].n_value); 249 if (intrnamebuf == 0 || intrname == 0 || intrloc == 0) { 250 error("Out of memory\n"); 251 if (intrnamebuf) 252 free(intrnamebuf); 253 if (intrname) 254 free(intrname); 255 if (intrloc) 256 free(intrloc); 257 nintr = 0; 258 return(0); 259 } 260 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 261 NVAL(X_INTRNAMES)); 262 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 263 intrname[i] = cp; 264 cp += strlen(cp) + 1; 265 } 266 nextintsrow = INTSROW + 2; 267 allocinfo(&s); 268 allocinfo(&s1); 269 allocinfo(&s2); 270 allocinfo(&z); 271 } 272 getinfo(&s2, RUN); 273 copyinfo(&s2, &s1); 274 return(1); 275 } 276 277 void 278 fetchkre() 279 { 280 time_t now; 281 struct tm *tp; 282 283 time(&now); 284 tp = localtime(&now); 285 (void) strftime(buf, sizeof(buf), "%c", tp); 286 buf[16] = '\0'; 287 getinfo(&s, state); 288 } 289 290 void 291 labelkre() 292 { 293 register int i, j; 294 295 clear(); 296 mvprintw(STATROW, STATCOL + 4, "users Load"); 297 mvprintw(MEMROW, MEMCOL, "Mem:KB REAL VIRTUAL"); 298 mvprintw(MEMROW + 1, MEMCOL, " Tot Share Tot Share"); 299 mvprintw(MEMROW + 2, MEMCOL, "Act"); 300 mvprintw(MEMROW + 3, MEMCOL, "All"); 301 302 mvprintw(MEMROW + 1, MEMCOL + 41, "Free"); 303 304 mvprintw(PAGEROW, PAGECOL, " VN PAGER SWAP PAGER "); 305 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 306 mvprintw(PAGEROW + 2, PAGECOL, "count"); 307 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 308 309 mvprintw(INTSROW, INTSCOL + 3, " Interrupts"); 310 mvprintw(INTSROW + 1, INTSCOL + 9, "total"); 311 312 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "cow"); 313 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "zfod"); 314 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "wire"); 315 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "act"); 316 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "inact"); 317 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "cache"); 318 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "free"); 319 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "daefr"); 320 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "prcfr"); 321 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "react"); 322 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "pdwake"); 323 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "pdpgs"); 324 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "intrn"); 325 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "buf"); 326 327 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "desiredvnodes"); 328 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "numvnodes"); 329 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "freevnodes"); 330 331 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 332 333 mvprintw(GRAPHROW, GRAPHCOL, 334 " . %%Sys . %%Intr . %%User . %%Nice . %%Idle"); 335 mvprintw(PROCSROW, PROCSCOL, "Proc:r p d s w"); 336 mvprintw(GRAPHROW + 1, GRAPHCOL, 337 "| | | | | | | | | | |"); 338 339 mvprintw(NAMEIROW, NAMEICOL, "Namei Name-cache Dir-cache"); 340 mvprintw(NAMEIROW + 1, NAMEICOL, 341 " Calls hits %% hits %%"); 342 mvprintw(DISKROW, DISKCOL, "Discs"); 343 mvprintw(DISKROW + 1, DISKCOL, "seeks"); 344 mvprintw(DISKROW + 2, DISKCOL, "xfers"); 345 mvprintw(DISKROW + 3, DISKCOL, " blks"); 346 mvprintw(DISKROW + 4, DISKCOL, " msps"); 347 j = 0; 348 for (i = 0; i < dk_ndrive && j < MAXDRIVES; i++) 349 if (dk_select[i]) { 350 mvprintw(DISKROW, DISKCOL + 5 + 5 * j, 351 " %4.4s", dr_name[j]); 352 j++; 353 } 354 for (i = 0; i < nintr; i++) { 355 if (intrloc[i] == 0) 356 continue; 357 mvprintw(intrloc[i], INTSCOL + 9, "%-10.10s", intrname[i]); 358 } 359 } 360 361 #define X(fld) {t=s.fld[i]; s.fld[i]-=s1.fld[i]; if(state==TIME) s1.fld[i]=t;} 362 #define Y(fld) {t = s.fld; s.fld -= s1.fld; if(state == TIME) s1.fld = t;} 363 #define Z(fld) {t = s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld; \ 364 if(state == TIME) s1.nchstats.fld = t;} 365 #define PUTRATE(fld, l, c, w) \ 366 Y(fld); \ 367 putint((int)((float)s.fld/etime + 0.5), l, c, w) 368 #define MAXFAIL 5 369 370 static char cpuchar[CPUSTATES] = { '=' , '+', '>', '-', ' ' }; 371 static char cpuorder[CPUSTATES] = { CP_SYS, CP_INTR, CP_USER, CP_NICE, 372 CP_IDLE }; 373 374 void 375 showkre() 376 { 377 float f1, f2; 378 int psiz, inttotal; 379 int i, l, c; 380 static int failcnt = 0; 381 382 for (i = 0; i < dk_ndrive; i++) { 383 X(dk_xfer); X(dk_seek); X(dk_wds); X(dk_time); 384 } 385 etime = 0; 386 for(i = 0; i < CPUSTATES; i++) { 387 X(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 inttotal = 0; 406 for (i = 0; i < nintr; i++) { 407 if (s.intrcnt[i] == 0) 408 continue; 409 if (intrloc[i] == 0) { 410 if (nextintsrow == LINES) 411 continue; 412 intrloc[i] = nextintsrow++; 413 mvprintw(intrloc[i], INTSCOL + 9, "%-10.10s", 414 intrname[i]); 415 } 416 X(intrcnt); 417 l = (int)((float)s.intrcnt[i]/etime + 0.5); 418 inttotal += l; 419 putint(l, intrloc[i], INTSCOL + 2, 6); 420 } 421 putint(inttotal, INTSROW + 1, INTSCOL + 2, 6); 422 Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss); 423 Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); Z(ncs_neghits); 424 s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits + 425 nchtotal.ncs_miss + nchtotal.ncs_long + nchtotal.ncs_neghits; 426 if (state == TIME) 427 s1.nchcount = s.nchcount; 428 429 psiz = 0; 430 f2 = 0.0; 431 for (c = 0; c < CPUSTATES; c++) { 432 i = cpuorder[c]; 433 f1 = cputime(i); 434 f2 += f1; 435 l = (int) ((f2 + 1.0) / 2.0) - psiz; 436 if (f1 > 99.9) 437 f1 = 99.9; /* no room to display 100.0 */ 438 putfloat(f1, GRAPHROW, GRAPHCOL + 10 * c, 4, 1, 0); 439 move(GRAPHROW + 2, psiz); 440 psiz += l; 441 while (l-- > 0) 442 addch(cpuchar[c]); 443 } 444 445 putint(ucount(), STATROW, STATCOL, 3); 446 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 447 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 448 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 449 mvaddstr(STATROW, STATCOL + 53, buf); 450 #define pgtokb(pg) ((pg) * cnt.v_page_size / 1024) 451 putint(pgtokb(total.t_arm), MEMROW + 2, MEMCOL + 3, 8); 452 putint(pgtokb(total.t_armshr), MEMROW + 2, MEMCOL + 11, 8); 453 putint(pgtokb(total.t_avm), MEMROW + 2, MEMCOL + 19, 9); 454 putint(pgtokb(total.t_avmshr), MEMROW + 2, MEMCOL + 28, 9); 455 putint(pgtokb(total.t_rm), MEMROW + 3, MEMCOL + 3, 8); 456 putint(pgtokb(total.t_rmshr), MEMROW + 3, MEMCOL + 11, 8); 457 putint(pgtokb(total.t_vm), MEMROW + 3, MEMCOL + 19, 9); 458 putint(pgtokb(total.t_vmshr), MEMROW + 3, MEMCOL + 28, 9); 459 putint(pgtokb(total.t_free), MEMROW + 2, MEMCOL + 37, 8); 460 putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 461 putint(total.t_pw, PROCSROW + 1, PROCSCOL + 6, 3); 462 putint(total.t_dw, PROCSROW + 1, PROCSCOL + 9, 3); 463 putint(total.t_sl, PROCSROW + 1, PROCSCOL + 12, 3); 464 putint(total.t_sw, PROCSROW + 1, PROCSCOL + 15, 3); 465 PUTRATE(Cnt.v_cow_faults, VMSTATROW + 0, VMSTATCOL + 3, 6); 466 PUTRATE(Cnt.v_zfod, VMSTATROW + 1, VMSTATCOL + 4, 5); 467 putint(pgtokb(cnt.v_wire_count), VMSTATROW + 2, VMSTATCOL, 9); 468 putint(pgtokb(cnt.v_active_count), VMSTATROW + 3, VMSTATCOL, 9); 469 putint(pgtokb(cnt.v_inactive_count), VMSTATROW + 4, VMSTATCOL, 9); 470 putint(pgtokb(cnt.v_cache_count), VMSTATROW + 5, VMSTATCOL, 9); 471 putint(pgtokb(cnt.v_free_count), VMSTATROW + 6, VMSTATCOL, 9); 472 PUTRATE(Cnt.v_dfree, VMSTATROW + 7, VMSTATCOL, 9); 473 PUTRATE(Cnt.v_pfree, VMSTATROW + 8, VMSTATCOL, 9); 474 PUTRATE(Cnt.v_reactivated, VMSTATROW + 9, VMSTATCOL, 9); 475 PUTRATE(Cnt.v_pdwakeups, VMSTATROW + 10, VMSTATCOL, 9); 476 PUTRATE(Cnt.v_pdpages, VMSTATROW + 11, VMSTATCOL, 9); 477 PUTRATE(Cnt.v_intrans, VMSTATROW + 12, VMSTATCOL, 9); 478 putint(s.bufspace/1024, VMSTATROW + 13, VMSTATCOL, 9); 479 putint(s.desiredvnodes, VMSTATROW + 14, VMSTATCOL, 9); 480 putint(s.numvnodes, VMSTATROW + 15, VMSTATCOL, 9); 481 putint(s.freevnodes, VMSTATROW + 16, VMSTATCOL, 9); 482 PUTRATE(Cnt.v_vnodein, PAGEROW + 2, PAGECOL + 5, 5); 483 PUTRATE(Cnt.v_vnodeout, PAGEROW + 2, PAGECOL + 10, 5); 484 PUTRATE(Cnt.v_swapin, PAGEROW + 2, PAGECOL + 17, 5); 485 PUTRATE(Cnt.v_swapout, PAGEROW + 2, PAGECOL + 22, 5); 486 PUTRATE(Cnt.v_vnodepgsin, PAGEROW + 3, PAGECOL + 5, 5); 487 PUTRATE(Cnt.v_vnodepgsout, PAGEROW + 3, PAGECOL + 10, 5); 488 PUTRATE(Cnt.v_swappgsin, PAGEROW + 3, PAGECOL + 17, 5); 489 PUTRATE(Cnt.v_swappgsout, PAGEROW + 3, PAGECOL + 22, 5); 490 PUTRATE(Cnt.v_swtch, GENSTATROW + 1, GENSTATCOL, 5); 491 PUTRATE(Cnt.v_trap, GENSTATROW + 1, GENSTATCOL + 5, 5); 492 PUTRATE(Cnt.v_syscall, GENSTATROW + 1, GENSTATCOL + 10, 5); 493 PUTRATE(Cnt.v_intr, GENSTATROW + 1, GENSTATCOL + 15, 5); 494 PUTRATE(Cnt.v_soft, GENSTATROW + 1, GENSTATCOL + 20, 5); 495 PUTRATE(Cnt.v_vm_faults, GENSTATROW + 1, GENSTATCOL + 25, 5); 496 mvprintw(DISKROW, DISKCOL + 5, " "); 497 for (i = 0, c = 0; i < dk_ndrive && c < MAXDRIVES; i++) 498 if (dk_select[i]) { 499 mvprintw(DISKROW, DISKCOL + 5 + 5 * c, 500 " %4.4s", dr_name[i]); 501 dinfo(i, ++c); 502 } 503 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 504 putint((nchtotal.ncs_goodhits + nchtotal.ncs_neghits), 505 NAMEIROW + 2, NAMEICOL + 9, 9); 506 #define nz(x) ((x) ? (x) : 1) 507 putfloat((nchtotal.ncs_goodhits+nchtotal.ncs_neghits) * 508 100.0 / nz(s.nchcount), 509 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 510 putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 511 putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), 512 NAMEIROW + 2, NAMEICOL + 33, 4, 0, 1); 513 #undef nz 514 } 515 516 int 517 cmdkre(cmd, args) 518 char *cmd, *args; 519 { 520 521 if (prefix(cmd, "run")) { 522 copyinfo(&s2, &s1); 523 state = RUN; 524 return (1); 525 } 526 if (prefix(cmd, "boot")) { 527 state = BOOT; 528 copyinfo(&z, &s1); 529 return (1); 530 } 531 if (prefix(cmd, "time")) { 532 state = TIME; 533 return (1); 534 } 535 if (prefix(cmd, "zero")) { 536 if (state == RUN) 537 getinfo(&s1, RUN); 538 return (1); 539 } 540 return (dkcmd(cmd, args)); 541 } 542 543 /* calculate number of users on the system */ 544 static int 545 ucount() 546 { 547 register int nusers = 0; 548 549 if (ut < 0) 550 return (0); 551 while (read(ut, &utmp, sizeof(utmp))) 552 if (utmp.ut_name[0] != '\0') 553 nusers++; 554 555 lseek(ut, 0L, L_SET); 556 return (nusers); 557 } 558 559 static float 560 cputime(indx) 561 int indx; 562 { 563 double t; 564 register int i; 565 566 t = 0; 567 for (i = 0; i < CPUSTATES; i++) 568 t += s.time[i]; 569 if (t == 0.0) 570 t = 1.0; 571 return (s.time[indx] * 100.0 / t); 572 } 573 574 static void 575 putint(n, l, c, w) 576 int n, l, c, w; 577 { 578 char b[128]; 579 580 move(l, c); 581 if (n == 0) { 582 while (w-- > 0) 583 addch(' '); 584 return; 585 } 586 sprintf(b, "%*d", w, n); 587 if (strlen(b) > w) { 588 while (w-- > 0) 589 addch('*'); 590 return; 591 } 592 addstr(b); 593 } 594 595 static void 596 putfloat(f, l, c, w, d, nz) 597 double f; 598 int l, c, w, d, nz; 599 { 600 char b[128]; 601 602 move(l, c); 603 if (nz && f == 0.0) { 604 while (--w >= 0) 605 addch(' '); 606 return; 607 } 608 sprintf(b, "%*.*f", w, d, f); 609 if (strlen(b) > w) { 610 while (--w >= 0) 611 addch('*'); 612 return; 613 } 614 addstr(b); 615 } 616 617 static void 618 getinfo(s, st) 619 struct Info *s; 620 enum state st; 621 { 622 int mib[2], size; 623 extern int errno; 624 625 NREAD(X_CPTIME, s->time, sizeof s->time); 626 NREAD(X_CNT, &s->Cnt, sizeof s->Cnt); 627 NREAD(X_BUFFERSPACE, &s->bufspace, LONG); 628 NREAD(X_DESIREDVNODES, &s->desiredvnodes, LONG); 629 NREAD(X_NUMVNODES, &s->numvnodes, LONG); 630 NREAD(X_FREEVNODES, &s->freevnodes, LONG); 631 NREAD(X_DK_BUSY, &s->dk_busy, LONG); 632 NREAD(X_DK_TIME, s->dk_time, dk_ndrive * LONG); 633 NREAD(X_DK_XFER, s->dk_xfer, dk_ndrive * LONG); 634 NREAD(X_DK_WDS, s->dk_wds, dk_ndrive * LONG); 635 NREAD(X_DK_SEEK, s->dk_seek, dk_ndrive * LONG); 636 NREAD(X_NCHSTATS, &s->nchstats, sizeof s->nchstats); 637 NREAD(X_INTRCNT, s->intrcnt, nintr * LONG); 638 size = sizeof(s->Total); 639 mib[0] = CTL_VM; 640 mib[1] = VM_METER; 641 if (sysctl(mib, 2, &s->Total, &size, NULL, 0) < 0) { 642 error("Can't get kernel info: %s\n", strerror(errno)); 643 bzero(&s->Total, sizeof(s->Total)); 644 } 645 } 646 647 static void 648 allocinfo(s) 649 struct Info *s; 650 { 651 652 s->intrcnt = (long *) calloc(nintr, sizeof(long)); 653 if (s->intrcnt == NULL) 654 errx(2, "out of memory"); 655 } 656 657 static void 658 copyinfo(from, to) 659 register struct Info *from, *to; 660 { 661 long *time, *wds, *seek, *xfer; 662 long *intrcnt; 663 664 /* 665 * time, wds, seek, and xfer are malloc'd so we have to 666 * save the pointers before the structure copy and then 667 * copy by hand. 668 */ 669 time = to->dk_time; wds = to->dk_wds; seek = to->dk_seek; 670 xfer = to->dk_xfer; intrcnt = to->intrcnt; 671 *to = *from; 672 bcopy(from->dk_time, to->dk_time = time, dk_ndrive * sizeof (long)); 673 bcopy(from->dk_wds, to->dk_wds = wds, dk_ndrive * sizeof (long)); 674 bcopy(from->dk_seek, to->dk_seek = seek, dk_ndrive * sizeof (long)); 675 bcopy(from->dk_xfer, to->dk_xfer = xfer, dk_ndrive * sizeof (long)); 676 bcopy(from->intrcnt, to->intrcnt = intrcnt, nintr * sizeof (int)); 677 } 678 679 static void 680 dinfo(dn, c) 681 int dn, c; 682 { 683 double words, atime, itime, xtime; 684 685 c = DISKCOL + c * 5; 686 atime = s.dk_time[dn]; 687 atime /= hertz; 688 words = s.dk_wds[dn]*32.0; /* number of words transferred */ 689 xtime = dk_mspw[dn]*words; /* transfer time */ 690 itime = atime - xtime; /* time not transferring */ 691 if (xtime < 0) 692 itime += xtime, xtime = 0; 693 if (itime < 0) 694 xtime += itime, itime = 0; 695 putint((int)((float)s.dk_seek[dn]/etime+0.5), DISKROW + 1, c, 5); 696 putint((int)((float)s.dk_xfer[dn]/etime+0.5), DISKROW + 2, c, 5); 697 putint((int)(words/etime/512.0 + 0.5), DISKROW + 3, c, 5); 698 if (s.dk_seek[dn]) 699 putfloat(itime*1000.0/s.dk_seek[dn], DISKROW + 4, c, 5, 1, 1); 700 else 701 putint(0, DISKROW + 4, c, 5); 702 } 703