vmstat.c revision 1.10
1 /* $NetBSD: vmstat.c,v 1.10 1997/10/19 23:36:34 lukem 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 1.10 1997/10/19 23:36:34 lukem 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/buf.h> 51 #include <sys/stat.h> 52 #include <sys/time.h> 53 #include <sys/user.h> 54 #include <sys/proc.h> 55 #include <sys/namei.h> 56 #include <sys/sysctl.h> 57 #include <vm/vm.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 <utmp.h> 67 #include <unistd.h> 68 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 struct nchstats nchstats; 77 long nchcount; 78 long *intrcnt; 79 } s, s1, s2, z; 80 81 #include "dkstats.h" 82 extern struct _disk cur; 83 84 85 #define cnt s.Cnt 86 #define oldcnt s1.Cnt 87 #define total s.Total 88 #define nchtotal s.nchstats 89 #define oldnchtotal s1.nchstats 90 91 static enum state { BOOT, TIME, RUN } state = TIME; 92 93 static void allocinfo __P((struct Info *)); 94 static void copyinfo __P((struct Info *, struct Info *)); 95 static float cputime __P((int)); 96 static void dinfo __P((int, int)); 97 static void getinfo __P((struct Info *, enum state)); 98 static void putint __P((int, int, int, int)); 99 static void putfloat __P((double, int, int, int, int, int)); 100 static int ucount __P((void)); 101 102 static int ut; 103 static char buf[26]; 104 static time_t t; 105 static double etime; 106 static float hertz; 107 static int nintr; 108 static long *intrloc; 109 static char **intrname; 110 static int nextintsrow; 111 112 struct utmp utmp; 113 114 115 WINDOW * 116 openkre() 117 { 118 119 ut = open(_PATH_UTMP, O_RDONLY); 120 if (ut < 0) 121 error("No utmp"); 122 return (stdscr); 123 } 124 125 void 126 closekre(w) 127 WINDOW *w; 128 { 129 130 (void) close(ut); 131 if (w == NULL) 132 return; 133 wclear(w); 134 wrefresh(w); 135 } 136 137 138 static struct nlist namelist[] = { 139 #define X_CPTIME 0 140 { "_cp_time" }, 141 #define X_CNT 1 142 { "_cnt" }, 143 #define X_TOTAL 2 144 { "_total" }, 145 #define X_NCHSTATS 3 146 { "_nchstats" }, 147 #define X_INTRNAMES 4 148 { "_intrnames" }, 149 #define X_EINTRNAMES 5 150 { "_eintrnames" }, 151 #define X_INTRCNT 6 152 { "_intrcnt" }, 153 #define X_EINTRCNT 7 154 { "_eintrcnt" }, 155 { "" }, 156 }; 157 158 /* 159 * These constants define where the major pieces are laid out 160 */ 161 #define STATROW 0 /* uses 1 row and 68 cols */ 162 #define STATCOL 2 163 #define MEMROW 2 /* uses 4 rows and 31 cols */ 164 #define MEMCOL 0 165 #define PAGEROW 2 /* uses 4 rows and 26 cols */ 166 #define PAGECOL 36 167 #define INTSROW 2 /* uses all rows to bottom and 17 cols */ 168 #define INTSCOL 63 169 #define PROCSROW 7 /* uses 2 rows and 20 cols */ 170 #define PROCSCOL 0 171 #define GENSTATROW 7 /* uses 2 rows and 30 cols */ 172 #define GENSTATCOL 20 173 #define VMSTATROW 7 /* uses 17 rows and 12 cols */ 174 #define VMSTATCOL 48 175 #define GRAPHROW 10 /* uses 3 rows and 51 cols */ 176 #define GRAPHCOL 0 177 #define NAMEIROW 14 /* uses 3 rows and 38 cols */ 178 #define NAMEICOL 0 179 #define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ 180 #define DISKCOL 0 181 182 #define DRIVESPACE 9 /* max # for space */ 183 184 #if DK_NDRIVE > DRIVESPACE 185 #define MAXDRIVES DRIVESPACE /* max # to display */ 186 #else 187 #define MAXDRIVES DK_NDRIVE /* max # to display */ 188 #endif 189 190 int 191 initkre() 192 { 193 char *intrnamebuf, *cp; 194 int i; 195 static int once = 0; 196 197 if (namelist[0].n_type == 0) { 198 if (kvm_nlist(kd, namelist)) { 199 nlisterr(namelist); 200 return(0); 201 } 202 if (namelist[0].n_type == 0) { 203 error("No namelist"); 204 return(0); 205 } 206 } 207 hertz = stathz ? stathz : hz; 208 if (! dkinit(1)) 209 return(0); 210 if (dk_ndrive && !once) { 211 #define allocate(e, t) \ 212 s./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 213 s1./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 214 s2./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 215 z./**/e = (t *)calloc(dk_ndrive, sizeof (t)); 216 once = 1; 217 #undef allocate 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 } 253 254 void 255 fetchkre() 256 { 257 time_t now; 258 259 time(&now); 260 strcpy(buf, ctime(&now)); 261 buf[16] = '\0'; 262 getinfo(&s, state); 263 } 264 265 void 266 labelkre() 267 { 268 int i, j; 269 270 clear(); 271 mvprintw(STATROW, STATCOL + 4, "users Load"); 272 mvprintw(MEMROW, MEMCOL, "Mem:KB REAL VIRTUAL"); 273 mvprintw(MEMROW + 1, MEMCOL, " Tot Share Tot Share"); 274 mvprintw(MEMROW + 2, MEMCOL, "Act"); 275 mvprintw(MEMROW + 3, MEMCOL, "All"); 276 277 mvprintw(MEMROW + 1, MEMCOL + 31, "Free"); 278 279 mvprintw(PAGEROW, PAGECOL, " PAGING SWAPPING "); 280 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 281 mvprintw(PAGEROW + 2, PAGECOL, "count"); 282 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 283 284 mvprintw(INTSROW, INTSCOL + 3, " Interrupts"); 285 mvprintw(INTSROW + 1, INTSCOL + 9, "total"); 286 287 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "cow"); 288 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "objlk"); 289 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "objht"); 290 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "zfod"); 291 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "nzfod"); 292 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "%%zfod"); 293 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "kern"); 294 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "wire"); 295 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "act"); 296 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "inact"); 297 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "free"); 298 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "daefr"); 299 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "prcfr"); 300 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "react"); 301 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "scan"); 302 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "hdrev"); 303 if (LINES - 1 > VMSTATROW + 16) 304 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "intrn"); 305 306 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 307 308 mvprintw(GRAPHROW, GRAPHCOL, 309 " . %% Sys . %% User . %% Nice . %% Idle"); 310 mvprintw(PROCSROW, PROCSCOL, "Proc:r p d s w"); 311 mvprintw(GRAPHROW + 1, GRAPHCOL, 312 "| | | | | | | | | | |"); 313 314 mvprintw(NAMEIROW, NAMEICOL, "Namei Sys-cache Proc-cache"); 315 mvprintw(NAMEIROW + 1, NAMEICOL, 316 " Calls hits %% hits %%"); 317 mvprintw(DISKROW, DISKCOL, "Discs"); 318 mvprintw(DISKROW + 1, DISKCOL, "seeks"); 319 mvprintw(DISKROW + 2, DISKCOL, "xfers"); 320 mvprintw(DISKROW + 3, DISKCOL, "Kbyte"); 321 mvprintw(DISKROW + 4, DISKCOL, " sec"); 322 j = 0; 323 for (i = 0; i < dk_ndrive && j < MAXDRIVES; i++) 324 if (dk_select[i]) { 325 mvprintw(DISKROW, DISKCOL + 5 + 5 * j, 326 " %3.3s", dr_name[j]); 327 j++; 328 } 329 for (i = 0; i < nintr; i++) { 330 if (intrloc[i] == 0) 331 continue; 332 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", intrname[i]); 333 } 334 } 335 336 #define X(fld) {t=s.fld[i]; s.fld[i]-=s1.fld[i]; if(state==TIME) s1.fld[i]=t;} 337 #define Y(fld) {t = s.fld; s.fld -= s1.fld; if(state == TIME) s1.fld = t;} 338 #define Z(fld) {t = s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld; \ 339 if(state == TIME) s1.nchstats.fld = t;} 340 #define PUTRATE(fld, l, c, w) \ 341 Y(fld); \ 342 putint((int)((float)s.fld/etime + 0.5), l, c, w) 343 #define MAXFAIL 5 344 345 static char cpuchar[CPUSTATES] = { '=' , '>', '-', ' ' }; 346 static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_IDLE }; 347 348 void 349 showkre() 350 { 351 float f1, f2; 352 int psiz, inttotal; 353 int i, l, c; 354 static int failcnt = 0; 355 356 357 if (state == TIME) 358 dkswap(); 359 etime = 0; 360 for(i = 0; i < CPUSTATES; i++) { 361 X(time); 362 etime += s.time[i]; 363 } 364 if (etime < 5.0) { /* < 5 ticks - ignore this trash */ 365 if (failcnt++ >= MAXFAIL) { 366 clear(); 367 mvprintw(2, 10, "The alternate system clock has died!"); 368 mvprintw(3, 10, "Reverting to ``pigs'' display."); 369 move(CMDLINE, 0); 370 refresh(); 371 failcnt = 0; 372 sleep(5); 373 command("pigs"); 374 } 375 return; 376 } 377 failcnt = 0; 378 etime /= hertz; 379 inttotal = 0; 380 for (i = 0; i < nintr; i++) { 381 if (s.intrcnt[i] == 0) 382 continue; 383 if (intrloc[i] == 0) { 384 if (nextintsrow == LINES) 385 continue; 386 intrloc[i] = nextintsrow++; 387 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", 388 intrname[i]); 389 } 390 X(intrcnt); 391 l = (int)((float)s.intrcnt[i]/etime + 0.5); 392 inttotal += l; 393 putint(l, intrloc[i], INTSCOL, 8); 394 } 395 putint(inttotal, INTSROW + 1, INTSCOL, 8); 396 Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss); 397 Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); 398 s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits + 399 nchtotal.ncs_miss + nchtotal.ncs_long; 400 if (state == TIME) 401 s1.nchcount = s.nchcount; 402 403 psiz = 0; 404 f2 = 0.0; 405 406 /* 407 * Last CPU state not calculated yet. 408 */ 409 for (c = 0; c < CPUSTATES - 1; c++) { 410 i = cpuorder[c]; 411 f1 = cputime(i); 412 f2 += f1; 413 l = (int) ((f2 + 1.0) / 2.0) - psiz; 414 if (c == 0) 415 putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0); 416 else 417 putfloat(f1, GRAPHROW, GRAPHCOL + 12 * c, 418 5, 1, 0); 419 move(GRAPHROW + 2, psiz); 420 psiz += l; 421 while (l-- > 0) 422 addch(cpuchar[c]); 423 } 424 425 putint(ucount(), STATROW, STATCOL, 3); 426 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 427 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 428 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 429 mvaddstr(STATROW, STATCOL + 53, buf); 430 #define pgtokb(pg) ((pg) * cnt.v_page_size / 1024) 431 putint(pgtokb(total.t_arm), MEMROW + 2, MEMCOL + 3, 6); 432 putint(pgtokb(total.t_armshr), MEMROW + 2, MEMCOL + 9, 6); 433 putint(pgtokb(total.t_avm), MEMROW + 2, MEMCOL + 15, 7); 434 putint(pgtokb(total.t_avmshr), MEMROW + 2, MEMCOL + 22, 7); 435 putint(pgtokb(total.t_rm), MEMROW + 3, MEMCOL + 3, 6); 436 putint(pgtokb(total.t_rmshr), MEMROW + 3, MEMCOL + 9, 6); 437 putint(pgtokb(total.t_vm), MEMROW + 3, MEMCOL + 15, 7); 438 putint(pgtokb(total.t_vmshr), MEMROW + 3, MEMCOL + 22, 7); 439 putint(pgtokb(total.t_free), MEMROW + 2, MEMCOL + 29, 6); 440 putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 441 putint(total.t_pw, PROCSROW + 1, PROCSCOL + 6, 3); 442 putint(total.t_dw, PROCSROW + 1, PROCSCOL + 9, 3); 443 putint(total.t_sl, PROCSROW + 1, PROCSCOL + 12, 3); 444 putint(total.t_sw, PROCSROW + 1, PROCSCOL + 15, 3); 445 PUTRATE(Cnt.v_cow_faults, VMSTATROW + 0, VMSTATCOL + 3, 6); 446 PUTRATE(Cnt.v_lookups, VMSTATROW + 1, VMSTATCOL + 3, 6); 447 PUTRATE(Cnt.v_hits, VMSTATROW + 2, VMSTATCOL + 3, 6); 448 PUTRATE(Cnt.v_zfod, VMSTATROW + 3, VMSTATCOL + 4, 5); 449 PUTRATE(Cnt.v_nzfod, VMSTATROW + 4, VMSTATCOL + 3, 6); 450 putfloat(cnt.v_nzfod == 0 ? 0.0 : (100.0 * cnt.v_zfod / cnt.v_nzfod), 451 VMSTATROW + 5, VMSTATCOL + 2, 7, 2, 1); 452 putint(pgtokb(cnt.v_kernel_pages), VMSTATROW + 6, VMSTATCOL, 9); 453 putint(pgtokb(cnt.v_wire_count), VMSTATROW + 7, VMSTATCOL, 9); 454 putint(pgtokb(cnt.v_active_count), VMSTATROW + 8, VMSTATCOL, 9); 455 putint(pgtokb(cnt.v_inactive_count), VMSTATROW + 9, VMSTATCOL, 9); 456 putint(pgtokb(cnt.v_free_count), VMSTATROW + 10, VMSTATCOL, 9); 457 PUTRATE(Cnt.v_dfree, VMSTATROW + 11, VMSTATCOL, 9); 458 PUTRATE(Cnt.v_pfree, VMSTATROW + 12, VMSTATCOL, 9); 459 PUTRATE(Cnt.v_reactivated, VMSTATROW + 13, VMSTATCOL, 9); 460 PUTRATE(Cnt.v_scan, VMSTATROW + 14, VMSTATCOL, 9); 461 PUTRATE(Cnt.v_rev, VMSTATROW + 15, VMSTATCOL, 9); 462 if (LINES - 1 > VMSTATROW + 16) 463 PUTRATE(Cnt.v_intrans, VMSTATROW + 16, VMSTATCOL, 9); 464 PUTRATE(Cnt.v_pageins, PAGEROW + 2, PAGECOL + 5, 5); 465 PUTRATE(Cnt.v_pageouts, PAGEROW + 2, PAGECOL + 10, 5); 466 PUTRATE(Cnt.v_swpin, PAGEROW + 2, PAGECOL + 15, 5); /* - */ 467 PUTRATE(Cnt.v_swpout, PAGEROW + 2, PAGECOL + 20, 5); /* - */ 468 PUTRATE(Cnt.v_pgpgin, PAGEROW + 3, PAGECOL + 5, 5); /* ? */ 469 PUTRATE(Cnt.v_pgpgout, PAGEROW + 3, PAGECOL + 10, 5); /* ? */ 470 PUTRATE(Cnt.v_pswpin, PAGEROW + 3, PAGECOL + 15, 5); /* - */ 471 PUTRATE(Cnt.v_pswpout, PAGEROW + 3, PAGECOL + 20, 5); /* - */ 472 PUTRATE(Cnt.v_swtch, GENSTATROW + 1, GENSTATCOL, 5); 473 PUTRATE(Cnt.v_trap, GENSTATROW + 1, GENSTATCOL + 5, 5); 474 PUTRATE(Cnt.v_syscall, GENSTATROW + 1, GENSTATCOL + 10, 5); 475 PUTRATE(Cnt.v_intr, GENSTATROW + 1, GENSTATCOL + 15, 5); 476 PUTRATE(Cnt.v_soft, GENSTATROW + 1, GENSTATCOL + 20, 5); 477 PUTRATE(Cnt.v_faults, GENSTATROW + 1, GENSTATCOL + 25, 5); 478 mvprintw(DISKROW, DISKCOL + 5, " "); 479 for (i = 0, c = 0; i < dk_ndrive && c < MAXDRIVES; i++) 480 if (dk_select[i]) { 481 mvprintw(DISKROW, DISKCOL + 5 + 5 * c, 482 " %3.3s", dr_name[i]); 483 dinfo(i, ++c); 484 } 485 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 486 putint(nchtotal.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9); 487 #define nz(x) ((x) ? (x) : 1) 488 putfloat(nchtotal.ncs_goodhits * 100.0 / nz(s.nchcount), 489 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 490 putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 491 putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), 492 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 493 #undef nz 494 } 495 496 int 497 cmdkre(cmd, args) 498 char *cmd, *args; 499 { 500 501 if (prefix(cmd, "run")) { 502 copyinfo(&s2, &s1); 503 state = RUN; 504 return (1); 505 } 506 if (prefix(cmd, "boot")) { 507 state = BOOT; 508 copyinfo(&z, &s1); 509 return (1); 510 } 511 if (prefix(cmd, "time")) { 512 state = TIME; 513 return (1); 514 } 515 if (prefix(cmd, "zero")) { 516 if (state == RUN) 517 getinfo(&s1, RUN); 518 return (1); 519 } 520 return (dkcmd(cmd, args)); 521 } 522 523 /* calculate number of users on the system */ 524 static int 525 ucount() 526 { 527 int nusers = 0; 528 529 if (ut < 0) 530 return (0); 531 while (read(ut, &utmp, sizeof(utmp))) 532 if (utmp.ut_name[0] != '\0') 533 nusers++; 534 535 lseek(ut, (off_t)0, SEEK_SET); 536 return (nusers); 537 } 538 539 static float 540 cputime(indx) 541 int indx; 542 { 543 double t; 544 int i; 545 546 t = 0; 547 for (i = 0; i < CPUSTATES; i++) 548 t += s.time[i]; 549 if (t == 0.0) 550 t = 1.0; 551 return (s.time[indx] * 100.0 / t); 552 } 553 554 static void 555 putint(n, l, c, w) 556 int n, l, c, w; 557 { 558 char b[128]; 559 560 move(l, c); 561 if (n == 0) { 562 while (w-- > 0) 563 addch(' '); 564 return; 565 } 566 sprintf(b, "%*d", w, n); 567 if (strlen(b) > w) { 568 while (w-- > 0) 569 addch('*'); 570 return; 571 } 572 addstr(b); 573 } 574 575 static void 576 putfloat(f, l, c, w, d, nz) 577 double f; 578 int l, c, w, d, nz; 579 { 580 char b[128]; 581 582 move(l, c); 583 if (nz && f == 0.0) { 584 while (--w >= 0) 585 addch(' '); 586 return; 587 } 588 sprintf(b, "%*.*f", w, d, f); 589 if (strlen(b) > w) { 590 while (--w >= 0) 591 addch('*'); 592 return; 593 } 594 addstr(b); 595 } 596 597 static void 598 getinfo(s, st) 599 struct Info *s; 600 enum state st; 601 { 602 int mib[2]; 603 size_t size; 604 extern int errno; 605 606 dkreadstats(); 607 NREAD(X_CPTIME, s->time, sizeof s->time); 608 NREAD(X_CNT, &s->Cnt, sizeof s->Cnt); 609 NREAD(X_NCHSTATS, &s->nchstats, sizeof s->nchstats); 610 NREAD(X_INTRCNT, s->intrcnt, nintr * LONG); 611 size = sizeof(s->Total); 612 mib[0] = CTL_VM; 613 mib[1] = VM_METER; 614 if (sysctl(mib, 2, &s->Total, &size, NULL, 0) < 0) { 615 error("Can't get kernel info: %s\n", strerror(errno)); 616 memset(&s->Total, 0, sizeof(s->Total)); 617 } 618 } 619 620 static void 621 allocinfo(s) 622 struct Info *s; 623 { 624 625 s->intrcnt = (long *) malloc(nintr * sizeof(long)); 626 if (s->intrcnt == NULL) 627 errx(2, "out of memory"); 628 } 629 630 static void 631 copyinfo(from, to) 632 struct Info *from, *to; 633 { 634 long *intrcnt; 635 636 intrcnt = to->intrcnt; 637 *to = *from; 638 memmove(to->intrcnt = intrcnt, from->intrcnt, nintr * sizeof (int)); 639 } 640 641 static void 642 dinfo(dn, c) 643 int dn, c; 644 { 645 double words, atime; 646 647 c = DISKCOL + c * 5; 648 649 /* time busy in disk activity */ 650 atime = (double)cur.dk_time[dn].tv_sec + 651 ((double)cur.dk_time[dn].tv_usec / (double)1000000); 652 653 words = cur.dk_bytes[dn] / 1024.0; /* # of K transferred */ 654 655 putint((int)((float)cur.dk_seek[dn]/etime+0.5), DISKROW + 1, c, 5); 656 putint((int)((float)cur.dk_xfer[dn]/etime+0.5), DISKROW + 2, c, 5); 657 putint((int)(words/etime + 0.5), DISKROW + 3, c, 5); 658 putfloat(atime/etime, DISKROW + 4, c, 5, 1, 1); 659 } 660
Indexes created Tue Sep 23 22:09:46 GMT 2025