vmstat.c revision 1.20
1 /* $NetBSD: vmstat.c,v 1.20 1999/09/30 13:16:27 soren 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 1.20 1999/09/30 13:16:27 soren 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 58 #include <vm/vm.h> 59 60 #include <uvm/uvm_extern.h> 61 62 #include <ctype.h> 63 #include <err.h> 64 #include <nlist.h> 65 #include <paths.h> 66 #include <signal.h> 67 #include <stdlib.h> 68 #include <string.h> 69 #include <utmp.h> 70 #include <unistd.h> 71 72 #include "systat.h" 73 #include "extern.h" 74 75 static struct Info { 76 long time[CPUSTATES]; 77 struct uvmexp uvmexp; 78 struct vmtotal Total; 79 struct nchstats nchstats; 80 long nchcount; 81 long *intrcnt; 82 } s, s1, s2, z; 83 84 #include "dkstats.h" 85 extern struct _disk cur; 86 87 88 #define cnt s.Cnt 89 #define oldcnt s1.Cnt 90 #define total s.Total 91 #define nchtotal s.nchstats 92 #define oldnchtotal s1.nchstats 93 94 static enum state { BOOT, TIME, RUN } state = TIME; 95 96 static void allocinfo __P((struct Info *)); 97 static void copyinfo __P((struct Info *, struct Info *)); 98 static float cputime __P((int)); 99 static void dinfo __P((int, int)); 100 static void getinfo __P((struct Info *, enum state)); 101 static void putint __P((int, int, int, int)); 102 static void putfloat __P((double, int, int, int, int, int)); 103 static int ucount __P((void)); 104 105 static int ut; 106 static char buf[26]; 107 static time_t t; 108 static double etime; 109 static float hertz; 110 static int nintr; 111 static long *intrloc; 112 static char **intrname; 113 static int nextintsrow; 114 115 struct utmp utmp; 116 117 WINDOW * 118 openkre() 119 { 120 121 ut = open(_PATH_UTMP, O_RDONLY); 122 if (ut < 0) 123 error("No utmp"); 124 return (stdscr); 125 } 126 127 void 128 closekre(w) 129 WINDOW *w; 130 { 131 132 (void) close(ut); 133 if (w == NULL) 134 return; 135 wclear(w); 136 wrefresh(w); 137 } 138 139 140 static struct nlist namelist[] = { 141 #define X_CPTIME 0 142 { "_cp_time" }, 143 #define X_TOTAL 1 144 { "_total" }, 145 #define X_NCHSTATS 2 146 { "_nchstats" }, 147 #define X_INTRNAMES 3 148 { "_intrnames" }, 149 #define X_EINTRNAMES 4 150 { "_eintrnames" }, 151 #define X_INTRCNT 5 152 { "_intrcnt" }, 153 #define X_EINTRCNT 6 154 { "_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 extern gid_t egid; 197 198 if (namelist[0].n_type == 0) { 199 if (kvm_nlist(kd, namelist)) { 200 nlisterr(namelist); 201 return(0); 202 } 203 if (namelist[0].n_type == 0) { 204 error("No namelist"); 205 return(0); 206 } 207 } 208 hertz = stathz ? stathz : hz; 209 if (! dkinit(1, egid)) 210 return(0); 211 if (dk_ndrive && !once) { 212 #define allocate(e, t) \ 213 s./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 214 s1./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 215 s2./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 216 z./**/e = (t *)calloc(dk_ndrive, sizeof (t)); 217 once = 1; 218 #undef allocate 219 } 220 if (nintr == 0) { 221 nintr = (namelist[X_EINTRCNT].n_value - 222 namelist[X_INTRCNT].n_value) / sizeof (long); 223 intrloc = calloc(nintr, sizeof (long)); 224 intrname = calloc(nintr, sizeof (long)); 225 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 226 namelist[X_INTRNAMES].n_value); 227 if (intrnamebuf == 0 || intrname == 0 || intrloc == 0) { 228 error("Out of memory\n"); 229 if (intrnamebuf) 230 free(intrnamebuf); 231 if (intrname) 232 free(intrname); 233 if (intrloc) 234 free(intrloc); 235 nintr = 0; 236 return(0); 237 } 238 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 239 NVAL(X_INTRNAMES)); 240 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 241 intrname[i] = cp; 242 cp += strlen(cp) + 1; 243 } 244 nextintsrow = INTSROW + 2; 245 allocinfo(&s); 246 allocinfo(&s1); 247 allocinfo(&s2); 248 allocinfo(&z); 249 } 250 getinfo(&s2, RUN); 251 copyinfo(&s2, &s1); 252 return(1); 253 } 254 255 void 256 fetchkre() 257 { 258 time_t now; 259 260 time(&now); 261 strcpy(buf, ctime(&now)); 262 buf[19] = '\0'; 263 getinfo(&s, state); 264 } 265 266 void 267 labelkre() 268 { 269 int i, j; 270 271 clear(); 272 mvprintw(STATROW, STATCOL + 4, "users Load"); 273 mvprintw(MEMROW, MEMCOL, " memory totals (in KB)"); 274 mvprintw(MEMROW + 1, MEMCOL, " real virtual free"); 275 mvprintw(MEMROW + 2, MEMCOL, "Active"); 276 mvprintw(MEMROW + 3, MEMCOL, "All"); 277 278 mvprintw(PAGEROW, PAGECOL, " PAGING SWAPPING "); 279 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 280 mvprintw(PAGEROW + 2, PAGECOL, "ops"); 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, "forks"); 287 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "fkppw"); 288 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "fksvm"); 289 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "pwait"); 290 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "relck"); 291 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "rlkok"); 292 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "noram"); 293 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "ndcpy"); 294 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "fltcp"); 295 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "zfod"); 296 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "cow"); 297 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "fmin"); 298 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "ftarg"); 299 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "itarg"); 300 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "wired"); 301 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "pdfre"); 302 if (LINES - 1 > VMSTATROW + 16) 303 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "pdscn"); 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 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 " %4.4s", 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) {Y(fld); putint((int)((float)s.fld/etime + 0.5), l, c, w);} 340 #define MAXFAIL 5 341 342 static char cpuchar[CPUSTATES] = { '=' , '>', '-', ' ' }; 343 static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_IDLE }; 344 345 void 346 showkre() 347 { 348 float f1, f2; 349 int psiz, inttotal; 350 int i, l, c; 351 static int failcnt = 0; 352 353 if (state == TIME) 354 dkswap(); 355 etime = 0; 356 for(i = 0; i < CPUSTATES; i++) { 357 X(time); 358 etime += s.time[i]; 359 } 360 if (etime < 5.0) { /* < 5 ticks - ignore this trash */ 361 if (failcnt++ >= MAXFAIL) { 362 clear(); 363 mvprintw(2, 10, "The alternate system clock has died!"); 364 mvprintw(3, 10, "Reverting to ``pigs'' display."); 365 move(CMDLINE, 0); 366 refresh(); 367 failcnt = 0; 368 sleep(5); 369 command("pigs"); 370 } 371 return; 372 } 373 failcnt = 0; 374 etime /= hertz; 375 inttotal = 0; 376 for (i = 0; i < nintr; i++) { 377 if (s.intrcnt[i] == 0) 378 continue; 379 if (intrloc[i] == 0) { 380 if (nextintsrow == LINES) 381 continue; 382 intrloc[i] = nextintsrow++; 383 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", 384 intrname[i]); 385 } 386 X(intrcnt); 387 l = (int)((float)s.intrcnt[i]/etime + 0.5); 388 inttotal += l; 389 putint(l, intrloc[i], INTSCOL, 8); 390 } 391 putint(inttotal, INTSROW + 1, INTSCOL, 8); 392 Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss); 393 Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); 394 s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits + 395 nchtotal.ncs_miss + nchtotal.ncs_long; 396 if (state == TIME) 397 s1.nchcount = s.nchcount; 398 399 psiz = 0; 400 f2 = 0.0; 401 402 /* 403 * Last CPU state not calculated yet. 404 */ 405 for (c = 0; c < CPUSTATES - 1; c++) { 406 i = cpuorder[c]; 407 f1 = cputime(i); 408 f2 += f1; 409 l = (int) ((f2 + 1.0) / 2.0) - psiz; 410 if (c == 0) 411 putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0); 412 else 413 putfloat(f1, GRAPHROW, GRAPHCOL + 12 * c, 414 5, 1, 0); 415 move(GRAPHROW + 2, psiz); 416 psiz += l; 417 while (l-- > 0) 418 addch(cpuchar[c]); 419 } 420 421 putint(ucount(), STATROW, STATCOL, 3); 422 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 423 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 424 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 425 mvaddstr(STATROW, STATCOL + 53, buf); 426 #define pgtokb(pg) ((pg) * (s.uvmexp.pagesize / 1024)) 427 428 putint(pgtokb(s.uvmexp.active), MEMROW + 2, MEMCOL + 6, 7); 429 putint(pgtokb(s.uvmexp.active + s.uvmexp.swpginuse), /* XXX */ 430 MEMROW + 2, MEMCOL + 16, 7); 431 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free), MEMROW + 3, MEMCOL + 6, 7); 432 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free + s.uvmexp.swpginuse), 433 MEMROW + 3, MEMCOL + 16, 7); 434 putint(pgtokb(s.uvmexp.free), MEMROW + 2, MEMCOL + 24, 7); 435 putint(pgtokb(s.uvmexp.free + s.uvmexp.swpages - s.uvmexp.swpginuse), 436 MEMROW + 3, MEMCOL + 24, 7); 437 putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 438 putint(total.t_dw, PROCSROW + 1, PROCSCOL + 6, 3); 439 putint(total.t_sl, PROCSROW + 1, PROCSCOL + 9, 3); 440 putint(total.t_sw, PROCSROW + 1, PROCSCOL + 12, 3); 441 PUTRATE(uvmexp.forks, VMSTATROW + 0, VMSTATCOL + 3, 6); 442 PUTRATE(uvmexp.forks_ppwait, VMSTATROW + 1, VMSTATCOL + 3, 6); 443 PUTRATE(uvmexp.forks_sharevm, VMSTATROW + 2, VMSTATCOL + 3, 6); 444 PUTRATE(uvmexp.fltpgwait, VMSTATROW + 3, VMSTATCOL + 4, 5); 445 PUTRATE(uvmexp.fltrelck, VMSTATROW + 4, VMSTATCOL + 3, 6); 446 PUTRATE(uvmexp.fltrelckok, VMSTATROW + 5, VMSTATCOL + 3, 6); 447 PUTRATE(uvmexp.fltnoram, VMSTATROW + 6, VMSTATCOL + 3, 6); 448 PUTRATE(uvmexp.fltamcopy, VMSTATROW + 7, VMSTATCOL + 3, 6); 449 PUTRATE(uvmexp.flt_prcopy, VMSTATROW + 8, VMSTATCOL + 3, 6); 450 PUTRATE(uvmexp.flt_przero, VMSTATROW + 9, VMSTATCOL + 3, 6); 451 PUTRATE(uvmexp.flt_acow, VMSTATROW + 10, VMSTATCOL, 9); 452 putint(s.uvmexp.freemin, VMSTATROW + 11, VMSTATCOL, 9); 453 putint(s.uvmexp.freetarg, VMSTATROW + 12, VMSTATCOL, 9); 454 putint(s.uvmexp.inactarg, VMSTATROW + 13, VMSTATCOL, 9); 455 putint(s.uvmexp.wired, VMSTATROW + 14, VMSTATCOL, 9); 456 PUTRATE(uvmexp.pdfreed, VMSTATROW + 15, VMSTATCOL, 9); 457 if (LINES - 1 > VMSTATROW + 16) 458 PUTRATE(uvmexp.pdscans, VMSTATROW + 16, VMSTATCOL, 9); 459 460 PUTRATE(uvmexp.pageins, PAGEROW + 2, PAGECOL + 5, 5); 461 PUTRATE(uvmexp.pdpageouts, PAGEROW + 2, PAGECOL + 10, 5); 462 PUTRATE(uvmexp.swapins, PAGEROW + 2, PAGECOL + 15, 5); 463 PUTRATE(uvmexp.swapouts, PAGEROW + 2, PAGECOL + 20, 5); 464 PUTRATE(uvmexp.pgswapin, PAGEROW + 3, PAGECOL + 5, 5); 465 PUTRATE(uvmexp.pgswapout, PAGEROW + 3, PAGECOL + 10, 5); 466 467 PUTRATE(uvmexp.swtch, GENSTATROW + 1, GENSTATCOL, 5); 468 PUTRATE(uvmexp.traps, GENSTATROW + 1, GENSTATCOL + 5, 5); 469 PUTRATE(uvmexp.syscalls, GENSTATROW + 1, GENSTATCOL + 10, 5); 470 PUTRATE(uvmexp.intrs, GENSTATROW + 1, GENSTATCOL + 15, 5); 471 PUTRATE(uvmexp.softs, GENSTATROW + 1, GENSTATCOL + 20, 5); 472 PUTRATE(uvmexp.faults, GENSTATROW + 1, GENSTATCOL + 25, 5); 473 mvprintw(DISKROW, DISKCOL + 5, " "); 474 for (i = 0, c = 0; i < dk_ndrive && c < MAXDRIVES; i++) 475 if (dk_select[i]) { 476 mvprintw(DISKROW, DISKCOL + 5 + 5 * c, 477 " %4.4s", dr_name[i]); 478 dinfo(i, ++c); 479 } 480 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 481 putint(nchtotal.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9); 482 #define nz(x) ((x) ? (x) : 1) 483 putfloat(nchtotal.ncs_goodhits * 100.0 / nz(s.nchcount), 484 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 485 putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 486 putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), 487 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 488 #undef nz 489 } 490 491 int 492 cmdkre(cmd, args) 493 char *cmd, *args; 494 { 495 496 if (prefix(cmd, "run")) { 497 copyinfo(&s2, &s1); 498 state = RUN; 499 return (1); 500 } 501 if (prefix(cmd, "boot")) { 502 state = BOOT; 503 copyinfo(&z, &s1); 504 return (1); 505 } 506 if (prefix(cmd, "time")) { 507 state = TIME; 508 return (1); 509 } 510 if (prefix(cmd, "zero")) { 511 if (state == RUN) 512 getinfo(&s1, RUN); 513 return (1); 514 } 515 return (dkcmd(cmd, args)); 516 } 517 518 /* calculate number of users on the system */ 519 static int 520 ucount() 521 { 522 int nusers = 0; 523 524 if (ut < 0) 525 return (0); 526 while (read(ut, &utmp, sizeof(utmp))) 527 if (utmp.ut_name[0] != '\0') 528 nusers++; 529 530 lseek(ut, (off_t)0, SEEK_SET); 531 return (nusers); 532 } 533 534 static float 535 cputime(indx) 536 int indx; 537 { 538 double t; 539 int i; 540 541 t = 0; 542 for (i = 0; i < CPUSTATES; i++) 543 t += s.time[i]; 544 if (t == 0.0) 545 t = 1.0; 546 return (s.time[indx] * 100.0 / t); 547 } 548 549 static void 550 putint(n, l, c, w) 551 int n, l, c, w; 552 { 553 char b[128]; 554 555 move(l, c); 556 if (n == 0) { 557 while (w-- > 0) 558 addch(' '); 559 return; 560 } 561 (void)snprintf(b, sizeof b, "%*d", w, n); 562 if (strlen(b) > w) { 563 while (w-- > 0) 564 addch('*'); 565 return; 566 } 567 addstr(b); 568 } 569 570 static void 571 putfloat(f, l, c, w, d, nz) 572 double f; 573 int l, c, w, d, nz; 574 { 575 char b[128]; 576 577 move(l, c); 578 if (nz && f == 0.0) { 579 while (--w >= 0) 580 addch(' '); 581 return; 582 } 583 (void)snprintf(b, sizeof b, "%*.*f", w, d, f); 584 if (strlen(b) > w) { 585 while (--w >= 0) 586 addch('*'); 587 return; 588 } 589 addstr(b); 590 } 591 592 static void 593 getinfo(s, st) 594 struct Info *s; 595 enum state st; 596 { 597 int mib[2]; 598 size_t size; 599 extern int errno; 600 601 dkreadstats(); 602 NREAD(X_CPTIME, s->time, sizeof s->time); 603 NREAD(X_NCHSTATS, &s->nchstats, sizeof s->nchstats); 604 NREAD(X_INTRCNT, s->intrcnt, nintr * LONG); 605 size = sizeof(s->uvmexp); 606 mib[0] = CTL_VM; 607 mib[1] = VM_UVMEXP; 608 if (sysctl(mib, 2, &s->uvmexp, &size, NULL, 0) < 0) { 609 error("can't get uvmexp: %s\n", strerror(errno)); 610 memset(&s->uvmexp, 0, sizeof(s->uvmexp)); 611 } 612 size = sizeof(s->Total); 613 mib[0] = CTL_VM; 614 mib[1] = VM_METER; 615 if (sysctl(mib, 2, &s->Total, &size, NULL, 0) < 0) { 616 error("Can't get kernel info: %s\n", strerror(errno)); 617 memset(&s->Total, 0, sizeof(s->Total)); 618 } 619 } 620 621 static void 622 allocinfo(s) 623 struct Info *s; 624 { 625 626 s->intrcnt = (long *) malloc(nintr * sizeof(long)); 627 if (s->intrcnt == NULL) 628 errx(2, "out of memory"); 629 } 630 631 static void 632 copyinfo(from, to) 633 struct Info *from, *to; 634 { 635 long *intrcnt; 636 637 intrcnt = to->intrcnt; 638 *to = *from; 639 memmove(to->intrcnt = intrcnt, from->intrcnt, nintr * sizeof (int)); 640 } 641 642 static void 643 dinfo(dn, c) 644 int dn, c; 645 { 646 double words, atime; 647 648 c = DISKCOL + c * 5; 649 650 /* time busy in disk activity */ 651 atime = (double)cur.dk_time[dn].tv_sec + 652 ((double)cur.dk_time[dn].tv_usec / (double)1000000); 653 654 words = cur.dk_bytes[dn] / 1024.0; /* # of K transferred */ 655 656 putint((int)((float)cur.dk_seek[dn]/etime+0.5), DISKROW + 1, c, 5); 657 putint((int)((float)cur.dk_xfer[dn]/etime+0.5), DISKROW + 2, c, 5); 658 putint((int)(words/etime + 0.5), DISKROW + 3, c, 5); 659 putfloat(atime/etime, DISKROW + 4, c, 5, 2, 1); 660 } 661
Indexes created Wed Sep 24 05:09:52 GMT 2025