vmstat.c revision 1.5
1 /* $NetBSD: vmstat.c,v 1.5 1996/05/10 23:16:40 thorpej 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 1.5 1996/05/10 23:16:40 thorpej 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_DK_BUSY 3 145 { "_dk_busy" }, 146 #define X_DK_TIME 4 147 { "_dk_time" }, 148 #define X_DK_XFER 5 149 { "_dk_xfer" }, 150 #define X_DK_WDS 6 151 { "_dk_wds" }, 152 #define X_DK_SEEK 7 153 { "_dk_seek" }, 154 #define X_NCHSTATS 8 155 { "_nchstats" }, 156 #define X_INTRNAMES 9 157 { "_intrnames" }, 158 #define X_EINTRNAMES 10 159 { "_eintrnames" }, 160 #define X_INTRCNT 11 161 { "_intrcnt" }, 162 #define X_EINTRCNT 12 163 { "_eintrcnt" }, 164 { "" }, 165 }; 166 167 /* 168 * These constants define where the major pieces are laid out 169 */ 170 #define STATROW 0 /* uses 1 row and 68 cols */ 171 #define STATCOL 2 172 #define MEMROW 2 /* uses 4 rows and 31 cols */ 173 #define MEMCOL 0 174 #define PAGEROW 2 /* uses 4 rows and 26 cols */ 175 #define PAGECOL 36 176 #define INTSROW 2 /* uses all rows to bottom and 17 cols */ 177 #define INTSCOL 63 178 #define PROCSROW 7 /* uses 2 rows and 20 cols */ 179 #define PROCSCOL 0 180 #define GENSTATROW 7 /* uses 2 rows and 30 cols */ 181 #define GENSTATCOL 20 182 #define VMSTATROW 7 /* uses 17 rows and 12 cols */ 183 #define VMSTATCOL 48 184 #define GRAPHROW 10 /* uses 3 rows and 51 cols */ 185 #define GRAPHCOL 0 186 #define NAMEIROW 14 /* uses 3 rows and 38 cols */ 187 #define NAMEICOL 0 188 #define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ 189 #define DISKCOL 0 190 191 #define DRIVESPACE 9 /* max # for space */ 192 193 #if DK_NDRIVE > DRIVESPACE 194 #define MAXDRIVES DRIVESPACE /* max # to display */ 195 #else 196 #define MAXDRIVES DK_NDRIVE /* max # to display */ 197 #endif 198 199 int 200 initkre() 201 { 202 char *intrnamebuf, *cp; 203 int i; 204 static int once = 0; 205 206 if (namelist[0].n_type == 0) { 207 if (kvm_nlist(kd, namelist)) { 208 nlisterr(namelist); 209 return(0); 210 } 211 if (namelist[0].n_type == 0) { 212 error("No namelist"); 213 return(0); 214 } 215 } 216 hertz = stathz ? stathz : hz; 217 if (! dkinit(1)) 218 return(0); 219 if (dk_ndrive && !once) { 220 #define allocate(e, t) \ 221 s./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 222 s1./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 223 s2./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 224 z./**/e = (t *)calloc(dk_ndrive, sizeof (t)); 225 once = 1; 226 #undef allocate 227 } 228 if (nintr == 0) { 229 nintr = (namelist[X_EINTRCNT].n_value - 230 namelist[X_INTRCNT].n_value) / sizeof (long); 231 intrloc = calloc(nintr, sizeof (long)); 232 intrname = calloc(nintr, sizeof (long)); 233 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 234 namelist[X_INTRNAMES].n_value); 235 if (intrnamebuf == 0 || intrname == 0 || intrloc == 0) { 236 error("Out of memory\n"); 237 if (intrnamebuf) 238 free(intrnamebuf); 239 if (intrname) 240 free(intrname); 241 if (intrloc) 242 free(intrloc); 243 nintr = 0; 244 return(0); 245 } 246 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 247 NVAL(X_INTRNAMES)); 248 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 249 intrname[i] = cp; 250 cp += strlen(cp) + 1; 251 } 252 nextintsrow = INTSROW + 2; 253 allocinfo(&s); 254 allocinfo(&s1); 255 allocinfo(&s2); 256 allocinfo(&z); 257 } 258 getinfo(&s2, RUN); 259 copyinfo(&s2, &s1); 260 return(1); 261 } 262 263 void 264 fetchkre() 265 { 266 time_t now; 267 268 time(&now); 269 strcpy(buf, ctime(&now)); 270 buf[16] = '\0'; 271 getinfo(&s, state); 272 } 273 274 void 275 labelkre() 276 { 277 register int i, j; 278 279 clear(); 280 mvprintw(STATROW, STATCOL + 4, "users Load"); 281 mvprintw(MEMROW, MEMCOL, "Mem:KB REAL VIRTUAL"); 282 mvprintw(MEMROW + 1, MEMCOL, " Tot Share Tot Share"); 283 mvprintw(MEMROW + 2, MEMCOL, "Act"); 284 mvprintw(MEMROW + 3, MEMCOL, "All"); 285 286 mvprintw(MEMROW + 1, MEMCOL + 31, "Free"); 287 288 mvprintw(PAGEROW, PAGECOL, " PAGING SWAPPING "); 289 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 290 mvprintw(PAGEROW + 2, PAGECOL, "count"); 291 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 292 293 mvprintw(INTSROW, INTSCOL + 3, " Interrupts"); 294 mvprintw(INTSROW + 1, INTSCOL + 9, "total"); 295 296 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "cow"); 297 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "objlk"); 298 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "objht"); 299 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "zfod"); 300 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "nzfod"); 301 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "%%zfod"); 302 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "kern"); 303 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "wire"); 304 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "act"); 305 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "inact"); 306 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "free"); 307 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "daefr"); 308 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "prcfr"); 309 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "react"); 310 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "scan"); 311 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "hdrev"); 312 if (LINES - 1 > VMSTATROW + 16) 313 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "intrn"); 314 315 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 316 317 mvprintw(GRAPHROW, GRAPHCOL, 318 " . %% Sys . %% User . %% Nice . %% Idle"); 319 mvprintw(PROCSROW, PROCSCOL, "Proc:r p d s w"); 320 mvprintw(GRAPHROW + 1, GRAPHCOL, 321 "| | | | | | | | | | |"); 322 323 mvprintw(NAMEIROW, NAMEICOL, "Namei Sys-cache Proc-cache"); 324 mvprintw(NAMEIROW + 1, NAMEICOL, 325 " Calls hits %% hits %%"); 326 mvprintw(DISKROW, DISKCOL, "Discs"); 327 mvprintw(DISKROW + 1, DISKCOL, "seeks"); 328 mvprintw(DISKROW + 2, DISKCOL, "xfers"); 329 mvprintw(DISKROW + 3, DISKCOL, "Kbyte"); 330 mvprintw(DISKROW + 4, DISKCOL, " sec"); 331 j = 0; 332 for (i = 0; i < dk_ndrive && j < MAXDRIVES; i++) 333 if (dk_select[i]) { 334 mvprintw(DISKROW, DISKCOL + 5 + 5 * j, 335 " %3.3s", dr_name[j]); 336 j++; 337 } 338 for (i = 0; i < nintr; i++) { 339 if (intrloc[i] == 0) 340 continue; 341 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", intrname[i]); 342 } 343 } 344 345 #define X(fld) {t=s.fld[i]; s.fld[i]-=s1.fld[i]; if(state==TIME) s1.fld[i]=t;} 346 #define Y(fld) {t = s.fld; s.fld -= s1.fld; if(state == TIME) s1.fld = t;} 347 #define Z(fld) {t = s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld; \ 348 if(state == TIME) s1.nchstats.fld = t;} 349 #define PUTRATE(fld, l, c, w) \ 350 Y(fld); \ 351 putint((int)((float)s.fld/etime + 0.5), l, c, w) 352 #define MAXFAIL 5 353 354 static char cpuchar[CPUSTATES] = { '=' , '>', '-', ' ' }; 355 static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_IDLE }; 356 357 void 358 showkre() 359 { 360 float f1, f2; 361 int psiz, inttotal; 362 int i, l, c; 363 static int failcnt = 0; 364 365 366 if (state == TIME) 367 dkswap(); 368 etime = 0; 369 for(i = 0; i < CPUSTATES; i++) { 370 X(time); 371 etime += s.time[i]; 372 } 373 if (etime < 5.0) { /* < 5 ticks - ignore this trash */ 374 if (failcnt++ >= MAXFAIL) { 375 clear(); 376 mvprintw(2, 10, "The alternate system clock has died!"); 377 mvprintw(3, 10, "Reverting to ``pigs'' display."); 378 move(CMDLINE, 0); 379 refresh(); 380 failcnt = 0; 381 sleep(5); 382 command("pigs"); 383 } 384 return; 385 } 386 failcnt = 0; 387 etime /= hertz; 388 inttotal = 0; 389 for (i = 0; i < nintr; i++) { 390 if (s.intrcnt[i] == 0) 391 continue; 392 if (intrloc[i] == 0) { 393 if (nextintsrow == LINES) 394 continue; 395 intrloc[i] = nextintsrow++; 396 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", 397 intrname[i]); 398 } 399 X(intrcnt); 400 l = (int)((float)s.intrcnt[i]/etime + 0.5); 401 inttotal += l; 402 putint(l, intrloc[i], INTSCOL, 8); 403 } 404 putint(inttotal, INTSROW + 1, INTSCOL, 8); 405 Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss); 406 Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); 407 s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits + 408 nchtotal.ncs_miss + nchtotal.ncs_long; 409 if (state == TIME) 410 s1.nchcount = s.nchcount; 411 412 psiz = 0; 413 f2 = 0.0; 414 415 /* 416 * Last CPU state not calculated yet. 417 */ 418 for (c = 0; c < CPUSTATES - 1; c++) { 419 i = cpuorder[c]; 420 f1 = cputime(i); 421 f2 += f1; 422 l = (int) ((f2 + 1.0) / 2.0) - psiz; 423 if (c == 0) 424 putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0); 425 else 426 putfloat(f1, GRAPHROW, GRAPHCOL + 12 * c, 427 5, 1, 0); 428 move(GRAPHROW + 2, psiz); 429 psiz += l; 430 while (l-- > 0) 431 addch(cpuchar[c]); 432 } 433 434 putint(ucount(), STATROW, STATCOL, 3); 435 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 436 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 437 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 438 mvaddstr(STATROW, STATCOL + 53, buf); 439 #define pgtokb(pg) ((pg) * cnt.v_page_size / 1024) 440 putint(pgtokb(total.t_arm), MEMROW + 2, MEMCOL + 3, 6); 441 putint(pgtokb(total.t_armshr), MEMROW + 2, MEMCOL + 9, 6); 442 putint(pgtokb(total.t_avm), MEMROW + 2, MEMCOL + 15, 7); 443 putint(pgtokb(total.t_avmshr), MEMROW + 2, MEMCOL + 22, 7); 444 putint(pgtokb(total.t_rm), MEMROW + 3, MEMCOL + 3, 6); 445 putint(pgtokb(total.t_rmshr), MEMROW + 3, MEMCOL + 9, 6); 446 putint(pgtokb(total.t_vm), MEMROW + 3, MEMCOL + 15, 7); 447 putint(pgtokb(total.t_vmshr), MEMROW + 3, MEMCOL + 22, 7); 448 putint(pgtokb(total.t_free), MEMROW + 2, MEMCOL + 29, 6); 449 putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 450 putint(total.t_pw, PROCSROW + 1, PROCSCOL + 6, 3); 451 putint(total.t_dw, PROCSROW + 1, PROCSCOL + 9, 3); 452 putint(total.t_sl, PROCSROW + 1, PROCSCOL + 12, 3); 453 putint(total.t_sw, PROCSROW + 1, PROCSCOL + 15, 3); 454 PUTRATE(Cnt.v_cow_faults, VMSTATROW + 0, VMSTATCOL + 3, 6); 455 PUTRATE(Cnt.v_lookups, VMSTATROW + 1, VMSTATCOL + 3, 6); 456 PUTRATE(Cnt.v_hits, VMSTATROW + 2, VMSTATCOL + 3, 6); 457 PUTRATE(Cnt.v_zfod, VMSTATROW + 3, VMSTATCOL + 4, 5); 458 PUTRATE(Cnt.v_nzfod, VMSTATROW + 4, VMSTATCOL + 3, 6); 459 putfloat(cnt.v_nzfod == 0 ? 0.0 : (100.0 * cnt.v_zfod / cnt.v_nzfod), 460 VMSTATROW + 5, VMSTATCOL + 2, 7, 2, 1); 461 putint(pgtokb(cnt.v_kernel_pages), VMSTATROW + 6, VMSTATCOL, 9); 462 putint(pgtokb(cnt.v_wire_count), VMSTATROW + 7, VMSTATCOL, 9); 463 putint(pgtokb(cnt.v_active_count), VMSTATROW + 8, VMSTATCOL, 9); 464 putint(pgtokb(cnt.v_inactive_count), VMSTATROW + 9, VMSTATCOL, 9); 465 putint(pgtokb(cnt.v_free_count), VMSTATROW + 10, VMSTATCOL, 9); 466 PUTRATE(Cnt.v_dfree, VMSTATROW + 11, VMSTATCOL, 9); 467 PUTRATE(Cnt.v_pfree, VMSTATROW + 12, VMSTATCOL, 9); 468 PUTRATE(Cnt.v_reactivated, VMSTATROW + 13, VMSTATCOL, 9); 469 PUTRATE(Cnt.v_scan, VMSTATROW + 14, VMSTATCOL, 9); 470 PUTRATE(Cnt.v_rev, VMSTATROW + 15, VMSTATCOL, 9); 471 if (LINES - 1 > VMSTATROW + 16) 472 PUTRATE(Cnt.v_intrans, VMSTATROW + 16, VMSTATCOL, 9); 473 PUTRATE(Cnt.v_pageins, PAGEROW + 2, PAGECOL + 5, 5); 474 PUTRATE(Cnt.v_pageouts, PAGEROW + 2, PAGECOL + 10, 5); 475 PUTRATE(Cnt.v_swpin, PAGEROW + 2, PAGECOL + 15, 5); /* - */ 476 PUTRATE(Cnt.v_swpout, PAGEROW + 2, PAGECOL + 20, 5); /* - */ 477 PUTRATE(Cnt.v_pgpgin, PAGEROW + 3, PAGECOL + 5, 5); /* ? */ 478 PUTRATE(Cnt.v_pgpgout, PAGEROW + 3, PAGECOL + 10, 5); /* ? */ 479 PUTRATE(Cnt.v_pswpin, PAGEROW + 3, PAGECOL + 15, 5); /* - */ 480 PUTRATE(Cnt.v_pswpout, PAGEROW + 3, PAGECOL + 20, 5); /* - */ 481 PUTRATE(Cnt.v_swtch, GENSTATROW + 1, GENSTATCOL, 5); 482 PUTRATE(Cnt.v_trap, GENSTATROW + 1, GENSTATCOL + 5, 5); 483 PUTRATE(Cnt.v_syscall, GENSTATROW + 1, GENSTATCOL + 10, 5); 484 PUTRATE(Cnt.v_intr, GENSTATROW + 1, GENSTATCOL + 15, 5); 485 PUTRATE(Cnt.v_soft, GENSTATROW + 1, GENSTATCOL + 20, 5); 486 PUTRATE(Cnt.v_faults, GENSTATROW + 1, GENSTATCOL + 25, 5); 487 mvprintw(DISKROW, DISKCOL + 5, " "); 488 for (i = 0, c = 0; i < dk_ndrive && c < MAXDRIVES; i++) 489 if (dk_select[i]) { 490 mvprintw(DISKROW, DISKCOL + 5 + 5 * c, 491 " %3.3s", dr_name[i]); 492 dinfo(i, ++c); 493 } 494 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 495 putint(nchtotal.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9); 496 #define nz(x) ((x) ? (x) : 1) 497 putfloat(nchtotal.ncs_goodhits * 100.0 / nz(s.nchcount), 498 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 499 putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 500 putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), 501 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 502 #undef nz 503 } 504 505 int 506 cmdkre(cmd, args) 507 char *cmd, *args; 508 { 509 510 if (prefix(cmd, "run")) { 511 copyinfo(&s2, &s1); 512 state = RUN; 513 return (1); 514 } 515 if (prefix(cmd, "boot")) { 516 state = BOOT; 517 copyinfo(&z, &s1); 518 return (1); 519 } 520 if (prefix(cmd, "time")) { 521 state = TIME; 522 return (1); 523 } 524 if (prefix(cmd, "zero")) { 525 if (state == RUN) 526 getinfo(&s1, RUN); 527 return (1); 528 } 529 return (dkcmd(cmd, args)); 530 } 531 532 /* calculate number of users on the system */ 533 static int 534 ucount() 535 { 536 register int nusers = 0; 537 538 if (ut < 0) 539 return (0); 540 while (read(ut, &utmp, sizeof(utmp))) 541 if (utmp.ut_name[0] != '\0') 542 nusers++; 543 544 lseek(ut, 0L, L_SET); 545 return (nusers); 546 } 547 548 static float 549 cputime(indx) 550 int indx; 551 { 552 double t; 553 register int i; 554 555 t = 0; 556 for (i = 0; i < CPUSTATES; i++) 557 t += s.time[i]; 558 if (t == 0.0) 559 t = 1.0; 560 return (s.time[indx] * 100.0 / t); 561 } 562 563 static void 564 putint(n, l, c, w) 565 int n, l, c, w; 566 { 567 char b[128]; 568 569 move(l, c); 570 if (n == 0) { 571 while (w-- > 0) 572 addch(' '); 573 return; 574 } 575 sprintf(b, "%*d", w, n); 576 if (strlen(b) > w) { 577 while (w-- > 0) 578 addch('*'); 579 return; 580 } 581 addstr(b); 582 } 583 584 static void 585 putfloat(f, l, c, w, d, nz) 586 double f; 587 int l, c, w, d, nz; 588 { 589 char b[128]; 590 591 move(l, c); 592 if (nz && f == 0.0) { 593 while (--w >= 0) 594 addch(' '); 595 return; 596 } 597 sprintf(b, "%*.*f", w, d, f); 598 if (strlen(b) > w) { 599 while (--w >= 0) 600 addch('*'); 601 return; 602 } 603 addstr(b); 604 } 605 606 static void 607 getinfo(s, st) 608 struct Info *s; 609 enum state st; 610 { 611 int mib[2]; 612 size_t size; 613 extern int errno; 614 615 dkreadstats(); 616 NREAD(X_CPTIME, s->time, sizeof s->time); 617 NREAD(X_CNT, &s->Cnt, sizeof s->Cnt); 618 NREAD(X_NCHSTATS, &s->nchstats, sizeof s->nchstats); 619 NREAD(X_INTRCNT, s->intrcnt, nintr * LONG); 620 size = sizeof(s->Total); 621 mib[0] = CTL_VM; 622 mib[1] = VM_METER; 623 if (sysctl(mib, 2, &s->Total, &size, NULL, 0) < 0) { 624 error("Can't get kernel info: %s\n", strerror(errno)); 625 bzero(&s->Total, sizeof(s->Total)); 626 } 627 } 628 629 static void 630 allocinfo(s) 631 struct Info *s; 632 { 633 634 s->intrcnt = (long *) malloc(nintr * sizeof(long)); 635 if (s->intrcnt == NULL) 636 errx(2, "out of memory"); 637 } 638 639 static void 640 copyinfo(from, to) 641 register struct Info *from, *to; 642 { 643 long *intrcnt; 644 645 intrcnt = to->intrcnt; 646 *to = *from; 647 bcopy(from->intrcnt, to->intrcnt = intrcnt, nintr * sizeof (int)); 648 } 649 650 static void 651 dinfo(dn, c) 652 int dn, c; 653 { 654 double words, atime; 655 656 c = DISKCOL + c * 5; 657 658 /* time busy in disk activity */ 659 atime = (double)cur.dk_time[dn].tv_sec + 660 ((double)cur.dk_time[dn].tv_usec / (double)1000000); 661 662 words = cur.dk_bytes[dn] / 1024.0; /* # of K transferred */ 663 664 putint((int)((float)cur.dk_seek[dn]/etime+0.5), DISKROW + 1, c, 5); 665 putint((int)((float)cur.dk_xfer[dn]/etime+0.5), DISKROW + 2, c, 5); 666 putint((int)(words/etime + 0.5), DISKROW + 3, c, 5); 667 putfloat(atime/etime, DISKROW + 4, c, 5, 1, 1); 668 } 669
Indexes created Tue Sep 23 07:09:52 GMT 2025