vmstat.c revision 1.29
1 /* $NetBSD: vmstat.c,v 1.29 2000/06/04 18:14:45 mycroft 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 1.29 2000/06/04 18:14:45 mycroft 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/sched.h> 57 #include <sys/sysctl.h> 58 59 #include <vm/vm.h> 60 61 #include <uvm/uvm_extern.h> 62 63 #include <ctype.h> 64 #include <err.h> 65 #include <nlist.h> 66 #include <paths.h> 67 #include <signal.h> 68 #include <stdlib.h> 69 #include <string.h> 70 #include <utmp.h> 71 #include <unistd.h> 72 73 #include "systat.h" 74 #include "extern.h" 75 76 static struct Info { 77 u_int64_t time[CPUSTATES]; 78 struct uvmexp uvmexp; 79 struct vmtotal Total; 80 struct nchstats nchstats; 81 long nchcount; 82 long *intrcnt; 83 } s, s1, s2, z; 84 85 #include "dkstats.h" 86 extern struct _disk cur; 87 88 89 #define cnt s.Cnt 90 #define oldcnt s1.Cnt 91 #define total s.Total 92 #define nchtotal s.nchstats 93 #define oldnchtotal s1.nchstats 94 95 static enum state { BOOT, TIME, RUN } state = TIME; 96 97 static void allocinfo __P((struct Info *)); 98 static void copyinfo __P((struct Info *, struct Info *)); 99 static float cputime __P((int)); 100 static void dinfo __P((int, int)); 101 static void getinfo __P((struct Info *, enum state)); 102 static void putint __P((int, int, int, int)); 103 static void putfloat __P((double, int, int, int, int, int)); 104 static int ucount __P((void)); 105 106 static int ut; 107 static char buf[26]; 108 static u_int64_t t; 109 static double etime; 110 static float hertz; 111 static int nintr; 112 static long *intrloc; 113 static char **intrname; 114 static int nextintsrow; 115 116 struct utmp utmp; 117 118 WINDOW * 119 openkre() 120 { 121 122 ut = open(_PATH_UTMP, O_RDONLY); 123 if (ut < 0) 124 error("No utmp"); 125 return (stdscr); 126 } 127 128 void 129 closekre(w) 130 WINDOW *w; 131 { 132 133 (void) close(ut); 134 if (w == NULL) 135 return; 136 wclear(w); 137 wrefresh(w); 138 } 139 140 141 static struct nlist namelist[] = { 142 #define X_TOTAL 0 143 { "_total" }, 144 #define X_NCHSTATS 1 145 { "_nchstats" }, 146 #define X_INTRNAMES 2 147 { "_intrnames" }, 148 #define X_EINTRNAMES 3 149 { "_eintrnames" }, 150 #define X_INTRCNT 4 151 { "_intrcnt" }, 152 #define X_EINTRCNT 5 153 { "_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 extern gid_t egid; 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, egid)) 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 == NULL || 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[19] = '\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, " memory totals (in KB)"); 273 mvprintw(MEMROW + 1, MEMCOL, " real virtual free"); 274 mvprintw(MEMROW + 2, MEMCOL, "Active"); 275 mvprintw(MEMROW + 3, MEMCOL, "All"); 276 277 mvprintw(PAGEROW, PAGECOL, " PAGING SWAPPING "); 278 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 279 mvprintw(PAGEROW + 2, PAGECOL, "ops"); 280 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 281 282 mvprintw(INTSROW, INTSCOL + 3, " Interrupts"); 283 mvprintw(INTSROW + 1, INTSCOL + 9, "total"); 284 285 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "forks"); 286 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "fkppw"); 287 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "fksvm"); 288 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "pwait"); 289 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "relck"); 290 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "rlkok"); 291 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "noram"); 292 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "ndcpy"); 293 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "fltcp"); 294 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "zfod"); 295 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "cow"); 296 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "fmin"); 297 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "ftarg"); 298 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "itarg"); 299 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "wired"); 300 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "pdfre"); 301 if (LINES - 1 > VMSTATROW + 16) 302 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "pdscn"); 303 304 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 305 306 mvprintw(GRAPHROW, GRAPHCOL, 307 " . %% Sy . %% Us . %% Ni . %% In . %% Id"); 308 mvprintw(PROCSROW, PROCSCOL, "Proc:r d s w"); 309 mvprintw(GRAPHROW + 1, GRAPHCOL, 310 "| | | | | | | | | | |"); 311 312 mvprintw(NAMEIROW, NAMEICOL, "Namei Sys-cache Proc-cache"); 313 mvprintw(NAMEIROW + 1, NAMEICOL, 314 " Calls hits %% hits %%"); 315 mvprintw(DISKROW, DISKCOL, "Discs"); 316 mvprintw(DISKROW + 1, DISKCOL, "seeks"); 317 mvprintw(DISKROW + 2, DISKCOL, "xfers"); 318 mvprintw(DISKROW + 3, DISKCOL, "Kbyte"); 319 mvprintw(DISKROW + 4, DISKCOL, " sec"); 320 j = 0; 321 for (i = 0; i < dk_ndrive && j < MAXDRIVES; i++) 322 if (dk_select[i]) { 323 mvprintw(DISKROW, DISKCOL + 5 + 5 * j, 324 " %4.4s", dr_name[j]); 325 j++; 326 } 327 for (i = 0; i < nintr; i++) { 328 if (intrloc[i] == 0) 329 continue; 330 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", intrname[i]); 331 } 332 } 333 334 #define X(fld) {t=s.fld[i]; s.fld[i]-=s1.fld[i]; if(state==TIME) s1.fld[i]=t;} 335 #define Y(fld) {t = s.fld; s.fld -= s1.fld; if(state == TIME) s1.fld = t;} 336 #define Z(fld) {t = s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld; \ 337 if(state == TIME) s1.nchstats.fld = t;} 338 #define PUTRATE(fld, l, c, w) {Y(fld); putint((int)((float)s.fld/etime + 0.5), l, c, w);} 339 #define MAXFAIL 5 340 341 static char cpuchar[CPUSTATES] = { '=' , '>', '-', '%', ' ' }; 342 static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_INTR, CP_IDLE }; 343 344 void 345 showkre() 346 { 347 float f1, f2; 348 int psiz, inttotal; 349 int i, l, c; 350 static int failcnt = 0; 351 352 if (state == TIME) 353 dkswap(); 354 etime = 0; 355 for(i = 0; i < CPUSTATES; i++) { 356 X(time); 357 etime += s.time[i]; 358 } 359 if (etime < 1.0) { /* < 5 ticks - ignore this trash */ 360 if (failcnt++ >= MAXFAIL) { 361 clear(); 362 mvprintw(2, 10, "The alternate system clock has died!"); 363 mvprintw(3, 10, "Reverting to ``pigs'' display."); 364 move(CMDLINE, 0); 365 refresh(); 366 failcnt = 0; 367 sleep(5); 368 command("pigs"); 369 } 370 return; 371 } 372 failcnt = 0; 373 etime /= hertz; 374 inttotal = 0; 375 for (i = 0; i < nintr; i++) { 376 if (s.intrcnt[i] == 0) 377 continue; 378 if (intrloc[i] == 0) { 379 if (nextintsrow == LINES) 380 continue; 381 intrloc[i] = nextintsrow++; 382 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", 383 intrname[i]); 384 } 385 X(intrcnt); 386 l = (int)((float)s.intrcnt[i]/etime + 0.5); 387 inttotal += l; 388 putint(l, intrloc[i], INTSCOL, 8); 389 } 390 putint(inttotal, INTSROW + 1, INTSCOL, 8); 391 Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss); 392 Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); 393 s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits + 394 nchtotal.ncs_miss + nchtotal.ncs_long; 395 if (state == TIME) 396 s1.nchcount = s.nchcount; 397 398 psiz = 0; 399 f2 = 0.0; 400 401 /* 402 * Last CPU state not calculated yet. 403 */ 404 for (c = 0; c < CPUSTATES; c++) { 405 i = cpuorder[c]; 406 f1 = cputime(i); 407 f2 += f1; 408 l = (int) ((f2 + 1.0) / 2.0) - psiz; 409 if (c == 0) 410 putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0); 411 else 412 putfloat(f1, GRAPHROW, GRAPHCOL + 10 * c + 1, 5, 1, 0); 413 mvhline(GRAPHROW + 2, psiz, cpuchar[c], l); 414 psiz += l; 415 } 416 417 putint(ucount(), STATROW, STATCOL, 3); 418 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 419 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 420 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 421 mvaddstr(STATROW, STATCOL + 53, buf); 422 #define pgtokb(pg) ((pg) * (s.uvmexp.pagesize / 1024)) 423 424 putint(pgtokb(s.uvmexp.active), MEMROW + 2, MEMCOL + 6, 7); 425 putint(pgtokb(s.uvmexp.active + s.uvmexp.swpginuse), /* XXX */ 426 MEMROW + 2, MEMCOL + 16, 7); 427 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free), MEMROW + 3, MEMCOL + 6, 7); 428 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free + s.uvmexp.swpginuse), 429 MEMROW + 3, MEMCOL + 16, 7); 430 putint(pgtokb(s.uvmexp.free), MEMROW + 2, MEMCOL + 24, 7); 431 putint(pgtokb(s.uvmexp.free + s.uvmexp.swpages - s.uvmexp.swpginuse), 432 MEMROW + 3, MEMCOL + 24, 7); 433 putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 434 putint(total.t_dw, PROCSROW + 1, PROCSCOL + 6, 3); 435 putint(total.t_sl, PROCSROW + 1, PROCSCOL + 9, 3); 436 putint(total.t_sw, PROCSROW + 1, PROCSCOL + 12, 3); 437 PUTRATE(uvmexp.forks, VMSTATROW + 0, VMSTATCOL + 3, 6); 438 PUTRATE(uvmexp.forks_ppwait, VMSTATROW + 1, VMSTATCOL + 3, 6); 439 PUTRATE(uvmexp.forks_sharevm, VMSTATROW + 2, VMSTATCOL + 3, 6); 440 PUTRATE(uvmexp.fltpgwait, VMSTATROW + 3, VMSTATCOL + 4, 5); 441 PUTRATE(uvmexp.fltrelck, VMSTATROW + 4, VMSTATCOL + 3, 6); 442 PUTRATE(uvmexp.fltrelckok, VMSTATROW + 5, VMSTATCOL + 3, 6); 443 PUTRATE(uvmexp.fltnoram, VMSTATROW + 6, VMSTATCOL + 3, 6); 444 PUTRATE(uvmexp.fltamcopy, VMSTATROW + 7, VMSTATCOL + 3, 6); 445 PUTRATE(uvmexp.flt_prcopy, VMSTATROW + 8, VMSTATCOL + 3, 6); 446 PUTRATE(uvmexp.flt_przero, VMSTATROW + 9, VMSTATCOL + 3, 6); 447 PUTRATE(uvmexp.flt_acow, VMSTATROW + 10, VMSTATCOL, 9); 448 putint(s.uvmexp.freemin, VMSTATROW + 11, VMSTATCOL, 9); 449 putint(s.uvmexp.freetarg, VMSTATROW + 12, VMSTATCOL, 9); 450 putint(s.uvmexp.inactarg, VMSTATROW + 13, VMSTATCOL, 9); 451 putint(s.uvmexp.wired, VMSTATROW + 14, VMSTATCOL, 9); 452 PUTRATE(uvmexp.pdfreed, VMSTATROW + 15, VMSTATCOL, 9); 453 if (LINES - 1 > VMSTATROW + 16) 454 PUTRATE(uvmexp.pdscans, VMSTATROW + 16, VMSTATCOL, 9); 455 456 PUTRATE(uvmexp.pageins, PAGEROW + 2, PAGECOL + 5, 5); 457 PUTRATE(uvmexp.pdpageouts, PAGEROW + 2, PAGECOL + 10, 5); 458 PUTRATE(uvmexp.swapins, PAGEROW + 2, PAGECOL + 15, 5); 459 PUTRATE(uvmexp.swapouts, PAGEROW + 2, PAGECOL + 20, 5); 460 PUTRATE(uvmexp.pgswapin, PAGEROW + 3, PAGECOL + 5, 5); 461 PUTRATE(uvmexp.pgswapout, PAGEROW + 3, PAGECOL + 10, 5); 462 463 PUTRATE(uvmexp.swtch, GENSTATROW + 1, GENSTATCOL, 5); 464 PUTRATE(uvmexp.traps, GENSTATROW + 1, GENSTATCOL + 5, 5); 465 PUTRATE(uvmexp.syscalls, GENSTATROW + 1, GENSTATCOL + 10, 5); 466 PUTRATE(uvmexp.intrs, GENSTATROW + 1, GENSTATCOL + 15, 5); 467 PUTRATE(uvmexp.softs, GENSTATROW + 1, GENSTATCOL + 20, 5); 468 PUTRATE(uvmexp.faults, GENSTATROW + 1, GENSTATCOL + 25, 5); 469 mvprintw(DISKROW, DISKCOL + 5, " "); 470 for (i = 0, c = 0; i < dk_ndrive && c < MAXDRIVES; i++) 471 if (dk_select[i]) { 472 mvprintw(DISKROW, DISKCOL + 5 + 5 * c, 473 " %4.4s", dr_name[i]); 474 dinfo(i, ++c); 475 } 476 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 477 putint(nchtotal.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9); 478 #define nz(x) ((x) ? (x) : 1) 479 putfloat(nchtotal.ncs_goodhits * 100.0 / nz(s.nchcount), 480 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 481 putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 482 putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), 483 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 484 #undef nz 485 } 486 487 void 488 vmstat_boot (args) 489 char *args; 490 { 491 copyinfo(&z, &s1); 492 state = BOOT; 493 } 494 495 void 496 vmstat_run (args) 497 char *args; 498 { 499 copyinfo(&s1, &s2); 500 state = RUN; 501 } 502 503 void 504 vmstat_time (args) 505 char * args; 506 { 507 state = TIME; 508 } 509 510 void 511 vmstat_zero (args) 512 char *args; 513 { 514 if (state == RUN) 515 getinfo(&s1, RUN); 516 } 517 518 /* calculate number of users on the system */ 519 static int 520 ucount() 521 { 522 int nusers = 0, onusers = -1; 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 if (nusers != onusers) { 531 if (nusers == 1) 532 mvprintw(STATROW, STATCOL + 8, " "); 533 else 534 mvprintw(STATROW, STATCOL + 8, "s"); 535 } 536 lseek(ut, (off_t)0, SEEK_SET); 537 onusers = nusers; 538 return (nusers); 539 } 540 541 static float 542 cputime(indx) 543 int indx; 544 { 545 double t; 546 int i; 547 548 t = 0; 549 for (i = 0; i < CPUSTATES; i++) 550 t += s.time[i]; 551 if (t == 0.0) 552 t = 1.0; 553 return (s.time[indx] * 100.0 / t); 554 } 555 556 static void 557 putint(n, l, c, w) 558 int n, l, c, w; 559 { 560 char b[128]; 561 562 move(l, c); 563 if (n == 0) { 564 while (w-- > 0) 565 addch(' '); 566 return; 567 } 568 (void)snprintf(b, sizeof b, "%*d", w, n); 569 if (strlen(b) > w) { 570 while (w-- > 0) 571 addch('*'); 572 return; 573 } 574 addstr(b); 575 } 576 577 static void 578 putfloat(f, l, c, w, d, nz) 579 double f; 580 int l, c, w, d, nz; 581 { 582 char b[128]; 583 584 move(l, c); 585 if (nz && f == 0.0) { 586 while (--w >= 0) 587 addch(' '); 588 return; 589 } 590 (void)snprintf(b, sizeof b, "%*.*f", w, d, f); 591 if (strlen(b) > w) { 592 while (--w >= 0) 593 addch('*'); 594 return; 595 } 596 addstr(b); 597 } 598 599 static void 600 getinfo(s, st) 601 struct Info *s; 602 enum state st; 603 { 604 int mib[2]; 605 size_t size; 606 607 dkreadstats(); 608 (void) fetch_cptime(s->time); 609 NREAD(X_NCHSTATS, &s->nchstats, sizeof s->nchstats); 610 NREAD(X_INTRCNT, s->intrcnt, nintr * LONG); 611 size = sizeof(s->uvmexp); 612 mib[0] = CTL_VM; 613 mib[1] = VM_UVMEXP; 614 if (sysctl(mib, 2, &s->uvmexp, &size, NULL, 0) < 0) { 615 error("can't get uvmexp: %s\n", strerror(errno)); 616 memset(&s->uvmexp, 0, sizeof(s->uvmexp)); 617 } 618 size = sizeof(s->Total); 619 mib[0] = CTL_VM; 620 mib[1] = VM_METER; 621 if (sysctl(mib, 2, &s->Total, &size, NULL, 0) < 0) { 622 error("Can't get kernel info: %s\n", strerror(errno)); 623 memset(&s->Total, 0, sizeof(s->Total)); 624 } 625 } 626 627 static void 628 allocinfo(s) 629 struct Info *s; 630 { 631 632 if ((s->intrcnt = malloc(nintr * sizeof(long))) == NULL) { 633 error("malloc failed"); 634 die(0); 635 } 636 } 637 638 static void 639 copyinfo(from, to) 640 struct Info *from, *to; 641 { 642 long *intrcnt; 643 644 intrcnt = to->intrcnt; 645 *to = *from; 646 memmove(to->intrcnt = intrcnt, from->intrcnt, nintr * sizeof (int)); 647 } 648 649 static void 650 dinfo(dn, c) 651 int dn, c; 652 { 653 double words, atime; 654 655 c = DISKCOL + c * 5; 656 657 /* time busy in disk activity */ 658 atime = (double)cur.dk_time[dn].tv_sec + 659 ((double)cur.dk_time[dn].tv_usec / (double)1000000); 660 661 words = cur.dk_bytes[dn] / 1024.0; /* # of K transferred */ 662 663 putint((int)((float)cur.dk_seek[dn]/etime+0.5), DISKROW + 1, c, 5); 664 putint((int)((float)cur.dk_xfer[dn]/etime+0.5), DISKROW + 2, c, 5); 665 putint((int)(words/etime + 0.5), DISKROW + 3, c, 5); 666 putfloat(atime/etime, DISKROW + 4, c, 5, 2, 1); 667 } 668
Indexes created Wed Sep 24 05:09:52 GMT 2025