vmstat.c revision 1.6
1 /* $NetBSD: vmstat.c,v 1.6 1996/08/11 04:16:28 explorer 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 #ifndef lint 37 #if 0 38 static char sccsid[] = "@(#)vmstat.c 8.2 (Berkeley) 1/12/94"; 39 #endif 40 static char rcsid[] = "$NetBSD: vmstat.c,v 1.6 1996/08/11 04:16:28 explorer Exp $"; 41 #endif /* not lint */ 42 43 /* 44 * Cursed vmstat -- from Robert Elz. 45 */ 46 47 #include <sys/param.h> 48 #include <sys/dkstat.h> 49 #include <sys/buf.h> 50 #include <sys/stat.h> 51 #include <sys/time.h> 52 #include <sys/user.h> 53 #include <sys/proc.h> 54 #include <sys/namei.h> 55 #include <sys/sysctl.h> 56 #include <vm/vm.h> 57 58 #include <ctype.h> 59 #include <err.h> 60 #include <nlist.h> 61 #include <paths.h> 62 #include <signal.h> 63 #include <stdlib.h> 64 #include <string.h> 65 #include <utmp.h> 66 #include <unistd.h> 67 68 #include "systat.h" 69 #include "extern.h" 70 71 static struct Info { 72 long time[CPUSTATES]; 73 struct vmmeter Cnt; 74 struct vmtotal Total; 75 struct nchstats nchstats; 76 long nchcount; 77 long *intrcnt; 78 } s, s1, s2, z; 79 80 #include "dkstats.h" 81 extern struct _disk cur; 82 83 84 #define cnt s.Cnt 85 #define oldcnt s1.Cnt 86 #define total s.Total 87 #define nchtotal s.nchstats 88 #define oldnchtotal s1.nchstats 89 90 static enum state { BOOT, TIME, RUN } state = TIME; 91 92 static void allocinfo __P((struct Info *)); 93 static void copyinfo __P((struct Info *, struct Info *)); 94 static float cputime __P((int)); 95 static void dinfo __P((int, int)); 96 static void getinfo __P((struct Info *, enum state)); 97 static void putint __P((int, int, int, int)); 98 static void putfloat __P((double, int, int, int, int, int)); 99 static int ucount __P((void)); 100 101 static int ut; 102 static char buf[26]; 103 static time_t t; 104 static double etime; 105 static float hertz; 106 static int nintr; 107 static long *intrloc; 108 static char **intrname; 109 static int nextintsrow; 110 111 struct utmp utmp; 112 113 114 WINDOW * 115 openkre() 116 { 117 118 ut = open(_PATH_UTMP, O_RDONLY); 119 if (ut < 0) 120 error("No utmp"); 121 return (stdscr); 122 } 123 124 void 125 closekre(w) 126 WINDOW *w; 127 { 128 129 (void) close(ut); 130 if (w == NULL) 131 return; 132 wclear(w); 133 wrefresh(w); 134 } 135 136 137 static struct nlist namelist[] = { 138 #define X_CPTIME 0 139 { "_cp_time" }, 140 #define X_CNT 1 141 { "_cnt" }, 142 #define X_TOTAL 2 143 { "_total" }, 144 #define X_NCHSTATS 3 145 { "_nchstats" }, 146 #define X_INTRNAMES 4 147 { "_intrnames" }, 148 #define X_EINTRNAMES 5 149 { "_eintrnames" }, 150 #define X_INTRCNT 6 151 { "_intrcnt" }, 152 #define X_EINTRCNT 7 153 { "_eintrcnt" }, 154 { "" }, 155 }; 156 157 /* 158 * These constants define where the major pieces are laid out 159 */ 160 #define STATROW 0 /* uses 1 row and 68 cols */ 161 #define STATCOL 2 162 #define MEMROW 2 /* uses 4 rows and 31 cols */ 163 #define MEMCOL 0 164 #define PAGEROW 2 /* uses 4 rows and 26 cols */ 165 #define PAGECOL 36 166 #define INTSROW 2 /* uses all rows to bottom and 17 cols */ 167 #define INTSCOL 63 168 #define PROCSROW 7 /* uses 2 rows and 20 cols */ 169 #define PROCSCOL 0 170 #define GENSTATROW 7 /* uses 2 rows and 30 cols */ 171 #define GENSTATCOL 20 172 #define VMSTATROW 7 /* uses 17 rows and 12 cols */ 173 #define VMSTATCOL 48 174 #define GRAPHROW 10 /* uses 3 rows and 51 cols */ 175 #define GRAPHCOL 0 176 #define NAMEIROW 14 /* uses 3 rows and 38 cols */ 177 #define NAMEICOL 0 178 #define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ 179 #define DISKCOL 0 180 181 #define DRIVESPACE 9 /* max # for space */ 182 183 #if DK_NDRIVE > DRIVESPACE 184 #define MAXDRIVES DRIVESPACE /* max # to display */ 185 #else 186 #define MAXDRIVES DK_NDRIVE /* max # to display */ 187 #endif 188 189 int 190 initkre() 191 { 192 char *intrnamebuf, *cp; 193 int i; 194 static int once = 0; 195 196 if (namelist[0].n_type == 0) { 197 if (kvm_nlist(kd, namelist)) { 198 nlisterr(namelist); 199 return(0); 200 } 201 if (namelist[0].n_type == 0) { 202 error("No namelist"); 203 return(0); 204 } 205 } 206 hertz = stathz ? stathz : hz; 207 if (! dkinit(1)) 208 return(0); 209 if (dk_ndrive && !once) { 210 #define allocate(e, t) \ 211 s./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 212 s1./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 213 s2./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 214 z./**/e = (t *)calloc(dk_ndrive, sizeof (t)); 215 once = 1; 216 #undef allocate 217 } 218 if (nintr == 0) { 219 nintr = (namelist[X_EINTRCNT].n_value - 220 namelist[X_INTRCNT].n_value) / sizeof (long); 221 intrloc = calloc(nintr, sizeof (long)); 222 intrname = calloc(nintr, sizeof (long)); 223 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 224 namelist[X_INTRNAMES].n_value); 225 if (intrnamebuf == 0 || intrname == 0 || intrloc == 0) { 226 error("Out of memory\n"); 227 if (intrnamebuf) 228 free(intrnamebuf); 229 if (intrname) 230 free(intrname); 231 if (intrloc) 232 free(intrloc); 233 nintr = 0; 234 return(0); 235 } 236 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 237 NVAL(X_INTRNAMES)); 238 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 239 intrname[i] = cp; 240 cp += strlen(cp) + 1; 241 } 242 nextintsrow = INTSROW + 2; 243 allocinfo(&s); 244 allocinfo(&s1); 245 allocinfo(&s2); 246 allocinfo(&z); 247 } 248 getinfo(&s2, RUN); 249 copyinfo(&s2, &s1); 250 return(1); 251 } 252 253 void 254 fetchkre() 255 { 256 time_t now; 257 258 time(&now); 259 strcpy(buf, ctime(&now)); 260 buf[16] = '\0'; 261 getinfo(&s, state); 262 } 263 264 void 265 labelkre() 266 { 267 register int i, j; 268 269 clear(); 270 mvprintw(STATROW, STATCOL + 4, "users Load"); 271 mvprintw(MEMROW, MEMCOL, "Mem:KB REAL VIRTUAL"); 272 mvprintw(MEMROW + 1, MEMCOL, " Tot Share Tot Share"); 273 mvprintw(MEMROW + 2, MEMCOL, "Act"); 274 mvprintw(MEMROW + 3, MEMCOL, "All"); 275 276 mvprintw(MEMROW + 1, MEMCOL + 31, "Free"); 277 278 mvprintw(PAGEROW, PAGECOL, " PAGING SWAPPING "); 279 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 280 mvprintw(PAGEROW + 2, PAGECOL, "count"); 281 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 282 283 mvprintw(INTSROW, INTSCOL + 3, " Interrupts"); 284 mvprintw(INTSROW + 1, INTSCOL + 9, "total"); 285 286 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "cow"); 287 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "objlk"); 288 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "objht"); 289 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "zfod"); 290 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "nzfod"); 291 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "%%zfod"); 292 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "kern"); 293 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "wire"); 294 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "act"); 295 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "inact"); 296 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "free"); 297 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "daefr"); 298 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "prcfr"); 299 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "react"); 300 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "scan"); 301 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "hdrev"); 302 if (LINES - 1 > VMSTATROW + 16) 303 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "intrn"); 304 305 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 306 307 mvprintw(GRAPHROW, GRAPHCOL, 308 " . %% Sys . %% User . %% Nice . %% Idle"); 309 mvprintw(PROCSROW, PROCSCOL, "Proc:r p d s w"); 310 mvprintw(GRAPHROW + 1, GRAPHCOL, 311 "| | | | | | | | | | |"); 312 313 mvprintw(NAMEIROW, NAMEICOL, "Namei Sys-cache Proc-cache"); 314 mvprintw(NAMEIROW + 1, NAMEICOL, 315 " Calls hits %% hits %%"); 316 mvprintw(DISKROW, DISKCOL, "Discs"); 317 mvprintw(DISKROW + 1, DISKCOL, "seeks"); 318 mvprintw(DISKROW + 2, DISKCOL, "xfers"); 319 mvprintw(DISKROW + 3, DISKCOL, "Kbyte"); 320 mvprintw(DISKROW + 4, DISKCOL, " sec"); 321 j = 0; 322 for (i = 0; i < dk_ndrive && j < MAXDRIVES; i++) 323 if (dk_select[i]) { 324 mvprintw(DISKROW, DISKCOL + 5 + 5 * j, 325 " %3.3s", dr_name[j]); 326 j++; 327 } 328 for (i = 0; i < nintr; i++) { 329 if (intrloc[i] == 0) 330 continue; 331 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", intrname[i]); 332 } 333 } 334 335 #define X(fld) {t=s.fld[i]; s.fld[i]-=s1.fld[i]; if(state==TIME) s1.fld[i]=t;} 336 #define Y(fld) {t = s.fld; s.fld -= s1.fld; if(state == TIME) s1.fld = t;} 337 #define Z(fld) {t = s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld; \ 338 if(state == TIME) s1.nchstats.fld = t;} 339 #define PUTRATE(fld, l, c, w) \ 340 Y(fld); \ 341 putint((int)((float)s.fld/etime + 0.5), l, c, w) 342 #define MAXFAIL 5 343 344 static char cpuchar[CPUSTATES] = { '=' , '>', '-', ' ' }; 345 static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_IDLE }; 346 347 void 348 showkre() 349 { 350 float f1, f2; 351 int psiz, inttotal; 352 int i, l, c; 353 static int failcnt = 0; 354 355 356 if (state == TIME) 357 dkswap(); 358 etime = 0; 359 for(i = 0; i < CPUSTATES; i++) { 360 X(time); 361 etime += s.time[i]; 362 } 363 if (etime < 5.0) { /* < 5 ticks - ignore this trash */ 364 if (failcnt++ >= MAXFAIL) { 365 clear(); 366 mvprintw(2, 10, "The alternate system clock has died!"); 367 mvprintw(3, 10, "Reverting to ``pigs'' display."); 368 move(CMDLINE, 0); 369 refresh(); 370 failcnt = 0; 371 sleep(5); 372 command("pigs"); 373 } 374 return; 375 } 376 failcnt = 0; 377 etime /= hertz; 378 inttotal = 0; 379 for (i = 0; i < nintr; i++) { 380 if (s.intrcnt[i] == 0) 381 continue; 382 if (intrloc[i] == 0) { 383 if (nextintsrow == LINES) 384 continue; 385 intrloc[i] = nextintsrow++; 386 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", 387 intrname[i]); 388 } 389 X(intrcnt); 390 l = (int)((float)s.intrcnt[i]/etime + 0.5); 391 inttotal += l; 392 putint(l, intrloc[i], INTSCOL, 8); 393 } 394 putint(inttotal, INTSROW + 1, INTSCOL, 8); 395 Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss); 396 Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); 397 s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits + 398 nchtotal.ncs_miss + nchtotal.ncs_long; 399 if (state == TIME) 400 s1.nchcount = s.nchcount; 401 402 psiz = 0; 403 f2 = 0.0; 404 405 /* 406 * Last CPU state not calculated yet. 407 */ 408 for (c = 0; c < CPUSTATES - 1; c++) { 409 i = cpuorder[c]; 410 f1 = cputime(i); 411 f2 += f1; 412 l = (int) ((f2 + 1.0) / 2.0) - psiz; 413 if (c == 0) 414 putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0); 415 else 416 putfloat(f1, GRAPHROW, GRAPHCOL + 12 * c, 417 5, 1, 0); 418 move(GRAPHROW + 2, psiz); 419 psiz += l; 420 while (l-- > 0) 421 addch(cpuchar[c]); 422 } 423 424 putint(ucount(), STATROW, STATCOL, 3); 425 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 426 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 427 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 428 mvaddstr(STATROW, STATCOL + 53, buf); 429 #define pgtokb(pg) ((pg) * cnt.v_page_size / 1024) 430 putint(pgtokb(total.t_arm), MEMROW + 2, MEMCOL + 3, 6); 431 putint(pgtokb(total.t_armshr), MEMROW + 2, MEMCOL + 9, 6); 432 putint(pgtokb(total.t_avm), MEMROW + 2, MEMCOL + 15, 7); 433 putint(pgtokb(total.t_avmshr), MEMROW + 2, MEMCOL + 22, 7); 434 putint(pgtokb(total.t_rm), MEMROW + 3, MEMCOL + 3, 6); 435 putint(pgtokb(total.t_rmshr), MEMROW + 3, MEMCOL + 9, 6); 436 putint(pgtokb(total.t_vm), MEMROW + 3, MEMCOL + 15, 7); 437 putint(pgtokb(total.t_vmshr), MEMROW + 3, MEMCOL + 22, 7); 438 putint(pgtokb(total.t_free), MEMROW + 2, MEMCOL + 29, 6); 439 putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 440 putint(total.t_pw, PROCSROW + 1, PROCSCOL + 6, 3); 441 putint(total.t_dw, PROCSROW + 1, PROCSCOL + 9, 3); 442 putint(total.t_sl, PROCSROW + 1, PROCSCOL + 12, 3); 443 putint(total.t_sw, PROCSROW + 1, PROCSCOL + 15, 3); 444 PUTRATE(Cnt.v_cow_faults, VMSTATROW + 0, VMSTATCOL + 3, 6); 445 PUTRATE(Cnt.v_lookups, VMSTATROW + 1, VMSTATCOL + 3, 6); 446 PUTRATE(Cnt.v_hits, VMSTATROW + 2, VMSTATCOL + 3, 6); 447 PUTRATE(Cnt.v_zfod, VMSTATROW + 3, VMSTATCOL + 4, 5); 448 PUTRATE(Cnt.v_nzfod, VMSTATROW + 4, VMSTATCOL + 3, 6); 449 putfloat(cnt.v_nzfod == 0 ? 0.0 : (100.0 * cnt.v_zfod / cnt.v_nzfod), 450 VMSTATROW + 5, VMSTATCOL + 2, 7, 2, 1); 451 putint(pgtokb(cnt.v_kernel_pages), VMSTATROW + 6, VMSTATCOL, 9); 452 putint(pgtokb(cnt.v_wire_count), VMSTATROW + 7, VMSTATCOL, 9); 453 putint(pgtokb(cnt.v_active_count), VMSTATROW + 8, VMSTATCOL, 9); 454 putint(pgtokb(cnt.v_inactive_count), VMSTATROW + 9, VMSTATCOL, 9); 455 putint(pgtokb(cnt.v_free_count), VMSTATROW + 10, VMSTATCOL, 9); 456 PUTRATE(Cnt.v_dfree, VMSTATROW + 11, VMSTATCOL, 9); 457 PUTRATE(Cnt.v_pfree, VMSTATROW + 12, VMSTATCOL, 9); 458 PUTRATE(Cnt.v_reactivated, VMSTATROW + 13, VMSTATCOL, 9); 459 PUTRATE(Cnt.v_scan, VMSTATROW + 14, VMSTATCOL, 9); 460 PUTRATE(Cnt.v_rev, VMSTATROW + 15, VMSTATCOL, 9); 461 if (LINES - 1 > VMSTATROW + 16) 462 PUTRATE(Cnt.v_intrans, VMSTATROW + 16, VMSTATCOL, 9); 463 PUTRATE(Cnt.v_pageins, PAGEROW + 2, PAGECOL + 5, 5); 464 PUTRATE(Cnt.v_pageouts, PAGEROW + 2, PAGECOL + 10, 5); 465 PUTRATE(Cnt.v_swpin, PAGEROW + 2, PAGECOL + 15, 5); /* - */ 466 PUTRATE(Cnt.v_swpout, PAGEROW + 2, PAGECOL + 20, 5); /* - */ 467 PUTRATE(Cnt.v_pgpgin, PAGEROW + 3, PAGECOL + 5, 5); /* ? */ 468 PUTRATE(Cnt.v_pgpgout, PAGEROW + 3, PAGECOL + 10, 5); /* ? */ 469 PUTRATE(Cnt.v_pswpin, PAGEROW + 3, PAGECOL + 15, 5); /* - */ 470 PUTRATE(Cnt.v_pswpout, PAGEROW + 3, PAGECOL + 20, 5); /* - */ 471 PUTRATE(Cnt.v_swtch, GENSTATROW + 1, GENSTATCOL, 5); 472 PUTRATE(Cnt.v_trap, GENSTATROW + 1, GENSTATCOL + 5, 5); 473 PUTRATE(Cnt.v_syscall, GENSTATROW + 1, GENSTATCOL + 10, 5); 474 PUTRATE(Cnt.v_intr, GENSTATROW + 1, GENSTATCOL + 15, 5); 475 PUTRATE(Cnt.v_soft, GENSTATROW + 1, GENSTATCOL + 20, 5); 476 PUTRATE(Cnt.v_faults, GENSTATROW + 1, GENSTATCOL + 25, 5); 477 mvprintw(DISKROW, DISKCOL + 5, " "); 478 for (i = 0, c = 0; i < dk_ndrive && c < MAXDRIVES; i++) 479 if (dk_select[i]) { 480 mvprintw(DISKROW, DISKCOL + 5 + 5 * c, 481 " %3.3s", dr_name[i]); 482 dinfo(i, ++c); 483 } 484 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 485 putint(nchtotal.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9); 486 #define nz(x) ((x) ? (x) : 1) 487 putfloat(nchtotal.ncs_goodhits * 100.0 / nz(s.nchcount), 488 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 489 putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 490 putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), 491 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 492 #undef nz 493 } 494 495 int 496 cmdkre(cmd, args) 497 char *cmd, *args; 498 { 499 500 if (prefix(cmd, "run")) { 501 copyinfo(&s2, &s1); 502 state = RUN; 503 return (1); 504 } 505 if (prefix(cmd, "boot")) { 506 state = BOOT; 507 copyinfo(&z, &s1); 508 return (1); 509 } 510 if (prefix(cmd, "time")) { 511 state = TIME; 512 return (1); 513 } 514 if (prefix(cmd, "zero")) { 515 if (state == RUN) 516 getinfo(&s1, RUN); 517 return (1); 518 } 519 return (dkcmd(cmd, args)); 520 } 521 522 /* calculate number of users on the system */ 523 static int 524 ucount() 525 { 526 register int nusers = 0; 527 528 if (ut < 0) 529 return (0); 530 while (read(ut, &utmp, sizeof(utmp))) 531 if (utmp.ut_name[0] != '\0') 532 nusers++; 533 534 lseek(ut, 0L, L_SET); 535 return (nusers); 536 } 537 538 static float 539 cputime(indx) 540 int indx; 541 { 542 double t; 543 register int i; 544 545 t = 0; 546 for (i = 0; i < CPUSTATES; i++) 547 t += s.time[i]; 548 if (t == 0.0) 549 t = 1.0; 550 return (s.time[indx] * 100.0 / t); 551 } 552 553 static void 554 putint(n, l, c, w) 555 int n, l, c, w; 556 { 557 char b[128]; 558 559 move(l, c); 560 if (n == 0) { 561 while (w-- > 0) 562 addch(' '); 563 return; 564 } 565 sprintf(b, "%*d", w, n); 566 if (strlen(b) > w) { 567 while (w-- > 0) 568 addch('*'); 569 return; 570 } 571 addstr(b); 572 } 573 574 static void 575 putfloat(f, l, c, w, d, nz) 576 double f; 577 int l, c, w, d, nz; 578 { 579 char b[128]; 580 581 move(l, c); 582 if (nz && f == 0.0) { 583 while (--w >= 0) 584 addch(' '); 585 return; 586 } 587 sprintf(b, "%*.*f", w, d, f); 588 if (strlen(b) > w) { 589 while (--w >= 0) 590 addch('*'); 591 return; 592 } 593 addstr(b); 594 } 595 596 static void 597 getinfo(s, st) 598 struct Info *s; 599 enum state st; 600 { 601 int mib[2]; 602 size_t size; 603 extern int errno; 604 605 dkreadstats(); 606 NREAD(X_CPTIME, s->time, sizeof s->time); 607 NREAD(X_CNT, &s->Cnt, sizeof s->Cnt); 608 NREAD(X_NCHSTATS, &s->nchstats, sizeof s->nchstats); 609 NREAD(X_INTRCNT, s->intrcnt, nintr * LONG); 610 size = sizeof(s->Total); 611 mib[0] = CTL_VM; 612 mib[1] = VM_METER; 613 if (sysctl(mib, 2, &s->Total, &size, NULL, 0) < 0) { 614 error("Can't get kernel info: %s\n", strerror(errno)); 615 bzero(&s->Total, sizeof(s->Total)); 616 } 617 } 618 619 static void 620 allocinfo(s) 621 struct Info *s; 622 { 623 624 s->intrcnt = (long *) malloc(nintr * sizeof(long)); 625 if (s->intrcnt == NULL) 626 errx(2, "out of memory"); 627 } 628 629 static void 630 copyinfo(from, to) 631 register struct Info *from, *to; 632 { 633 long *intrcnt; 634 635 intrcnt = to->intrcnt; 636 *to = *from; 637 bcopy(from->intrcnt, to->intrcnt = intrcnt, nintr * sizeof (int)); 638 } 639 640 static void 641 dinfo(dn, c) 642 int dn, c; 643 { 644 double words, atime; 645 646 c = DISKCOL + c * 5; 647 648 /* time busy in disk activity */ 649 atime = (double)cur.dk_time[dn].tv_sec + 650 ((double)cur.dk_time[dn].tv_usec / (double)1000000); 651 652 words = cur.dk_bytes[dn] / 1024.0; /* # of K transferred */ 653 654 putint((int)((float)cur.dk_seek[dn]/etime+0.5), DISKROW + 1, c, 5); 655 putint((int)((float)cur.dk_xfer[dn]/etime+0.5), DISKROW + 2, c, 5); 656 putint((int)(words/etime + 0.5), DISKROW + 3, c, 5); 657 putfloat(atime/etime, DISKROW + 4, c, 5, 1, 1); 658 } 659
Indexes created Mon Sep 22 21:09:42 GMT 2025