vmstat.c revision 1.26
1 /* $NetBSD: vmstat.c,v 1.26 2000/06/04 01:53:51 perry 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 1.26 2000/06/04 01:53:51 perry 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_CPTIME 0 143 { "_cp_time" }, 144 #define X_TOTAL 1 145 { "_total" }, 146 #define X_NCHSTATS 2 147 { "_nchstats" }, 148 #define X_INTRNAMES 3 149 { "_intrnames" }, 150 #define X_EINTRNAMES 4 151 { "_eintrnames" }, 152 #define X_INTRCNT 5 153 { "_intrcnt" }, 154 #define X_EINTRCNT 6 155 { "_eintrcnt" }, 156 { "" }, 157 }; 158 159 /* 160 * These constants define where the major pieces are laid out 161 */ 162 #define STATROW 0 /* uses 1 row and 68 cols */ 163 #define STATCOL 2 164 #define MEMROW 2 /* uses 4 rows and 31 cols */ 165 #define MEMCOL 0 166 #define PAGEROW 2 /* uses 4 rows and 26 cols */ 167 #define PAGECOL 36 168 #define INTSROW 2 /* uses all rows to bottom and 17 cols */ 169 #define INTSCOL 63 170 #define PROCSROW 7 /* uses 2 rows and 20 cols */ 171 #define PROCSCOL 0 172 #define GENSTATROW 7 /* uses 2 rows and 30 cols */ 173 #define GENSTATCOL 20 174 #define VMSTATROW 7 /* uses 17 rows and 12 cols */ 175 #define VMSTATCOL 48 176 #define GRAPHROW 10 /* uses 3 rows and 51 cols */ 177 #define GRAPHCOL 0 178 #define NAMEIROW 14 /* uses 3 rows and 38 cols */ 179 #define NAMEICOL 0 180 #define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ 181 #define DISKCOL 0 182 183 #define DRIVESPACE 9 /* max # for space */ 184 185 #if DK_NDRIVE > DRIVESPACE 186 #define MAXDRIVES DRIVESPACE /* max # to display */ 187 #else 188 #define MAXDRIVES DK_NDRIVE /* max # to display */ 189 #endif 190 191 int 192 initkre() 193 { 194 char *intrnamebuf, *cp; 195 int i; 196 static int once = 0; 197 extern gid_t egid; 198 199 if (namelist[0].n_type == 0) { 200 if (kvm_nlist(kd, namelist)) { 201 nlisterr(namelist); 202 return(0); 203 } 204 if (namelist[0].n_type == 0) { 205 error("No namelist"); 206 return(0); 207 } 208 } 209 hertz = stathz ? stathz : hz; 210 if (! dkinit(1, egid)) 211 return(0); 212 if (dk_ndrive && !once) { 213 #define allocate(e, t) \ 214 s./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 215 s1./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 216 s2./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 217 z./**/e = (t *)calloc(dk_ndrive, sizeof (t)); 218 once = 1; 219 #undef allocate 220 } 221 if (nintr == 0) { 222 nintr = (namelist[X_EINTRCNT].n_value - 223 namelist[X_INTRCNT].n_value) / sizeof (long); 224 intrloc = calloc(nintr, sizeof (long)); 225 intrname = calloc(nintr, sizeof (long)); 226 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 227 namelist[X_INTRNAMES].n_value); 228 if (intrnamebuf == NULL || intrname == 0 || intrloc == 0) { 229 error("Out of memory\n"); 230 if (intrnamebuf) 231 free(intrnamebuf); 232 if (intrname) 233 free(intrname); 234 if (intrloc) 235 free(intrloc); 236 nintr = 0; 237 return(0); 238 } 239 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 240 NVAL(X_INTRNAMES)); 241 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 242 intrname[i] = cp; 243 cp += strlen(cp) + 1; 244 } 245 nextintsrow = INTSROW + 2; 246 allocinfo(&s); 247 allocinfo(&s1); 248 allocinfo(&s2); 249 allocinfo(&z); 250 } 251 getinfo(&s2, RUN); 252 copyinfo(&s2, &s1); 253 return(1); 254 } 255 256 void 257 fetchkre() 258 { 259 time_t now; 260 261 time(&now); 262 strcpy(buf, ctime(&now)); 263 buf[19] = '\0'; 264 getinfo(&s, state); 265 } 266 267 void 268 labelkre() 269 { 270 int i, j; 271 272 clear(); 273 mvprintw(STATROW, STATCOL + 4, "users Load"); 274 mvprintw(MEMROW, MEMCOL, " memory totals (in KB)"); 275 mvprintw(MEMROW + 1, MEMCOL, " real virtual free"); 276 mvprintw(MEMROW + 2, MEMCOL, "Active"); 277 mvprintw(MEMROW + 3, MEMCOL, "All"); 278 279 mvprintw(PAGEROW, PAGECOL, " PAGING SWAPPING "); 280 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 281 mvprintw(PAGEROW + 2, PAGECOL, "ops"); 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, "forks"); 288 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "fkppw"); 289 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "fksvm"); 290 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "pwait"); 291 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "relck"); 292 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "rlkok"); 293 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "noram"); 294 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "ndcpy"); 295 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "fltcp"); 296 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "zfod"); 297 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "cow"); 298 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "fmin"); 299 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "ftarg"); 300 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "itarg"); 301 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "wired"); 302 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "pdfre"); 303 if (LINES - 1 > VMSTATROW + 16) 304 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "pdscn"); 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 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 " %4.4s", 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) {Y(fld); putint((int)((float)s.fld/etime + 0.5), l, c, w);} 341 #define MAXFAIL 5 342 343 static char cpuchar[CPUSTATES] = { '=' , '>', '-', '%', ' ' }; 344 static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_INTR, CP_IDLE }; 345 346 void 347 showkre() 348 { 349 float f1, f2; 350 int psiz, inttotal; 351 int i, l, c; 352 static int failcnt = 0; 353 354 if (state == TIME) 355 dkswap(); 356 etime = 0; 357 for(i = 0; i < CPUSTATES; i++) { 358 X(time); 359 etime += s.time[i]; 360 } 361 if (etime < 5.0) { /* < 5 ticks - ignore this trash */ 362 if (failcnt++ >= MAXFAIL) { 363 clear(); 364 mvprintw(2, 10, "The alternate system clock has died!"); 365 mvprintw(3, 10, "Reverting to ``pigs'' display."); 366 move(CMDLINE, 0); 367 refresh(); 368 failcnt = 0; 369 sleep(5); 370 command("pigs"); 371 } 372 return; 373 } 374 failcnt = 0; 375 etime /= hertz; 376 inttotal = 0; 377 for (i = 0; i < nintr; i++) { 378 if (s.intrcnt[i] == 0) 379 continue; 380 if (intrloc[i] == 0) { 381 if (nextintsrow == LINES) 382 continue; 383 intrloc[i] = nextintsrow++; 384 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", 385 intrname[i]); 386 } 387 X(intrcnt); 388 l = (int)((float)s.intrcnt[i]/etime + 0.5); 389 inttotal += l; 390 putint(l, intrloc[i], INTSCOL, 8); 391 } 392 putint(inttotal, INTSROW + 1, INTSCOL, 8); 393 Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss); 394 Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); 395 s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits + 396 nchtotal.ncs_miss + nchtotal.ncs_long; 397 if (state == TIME) 398 s1.nchcount = s.nchcount; 399 400 psiz = 0; 401 f2 = 0.0; 402 403 /* 404 * Last CPU state not calculated yet. 405 */ 406 for (c = 0; c < CPUSTATES - 1; c++) { 407 i = cpuorder[c]; 408 f1 = cputime(i); 409 f2 += f1; 410 l = (int) ((f2 + 1.0) / 2.0) - psiz; 411 if (c == 0) 412 putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0); 413 else 414 putfloat(f1, GRAPHROW, GRAPHCOL + 12 * c, 415 5, 1, 0); 416 move(GRAPHROW + 2, psiz); 417 psiz += l; 418 while (l-- > 0) 419 addch(cpuchar[c]); 420 } 421 422 putint(ucount(), STATROW, STATCOL, 3); 423 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 424 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 425 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 426 mvaddstr(STATROW, STATCOL + 53, buf); 427 #define pgtokb(pg) ((pg) * (s.uvmexp.pagesize / 1024)) 428 429 putint(pgtokb(s.uvmexp.active), MEMROW + 2, MEMCOL + 6, 7); 430 putint(pgtokb(s.uvmexp.active + s.uvmexp.swpginuse), /* XXX */ 431 MEMROW + 2, MEMCOL + 16, 7); 432 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free), MEMROW + 3, MEMCOL + 6, 7); 433 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free + s.uvmexp.swpginuse), 434 MEMROW + 3, MEMCOL + 16, 7); 435 putint(pgtokb(s.uvmexp.free), MEMROW + 2, MEMCOL + 24, 7); 436 putint(pgtokb(s.uvmexp.free + s.uvmexp.swpages - s.uvmexp.swpginuse), 437 MEMROW + 3, MEMCOL + 24, 7); 438 putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 439 putint(total.t_dw, PROCSROW + 1, PROCSCOL + 6, 3); 440 putint(total.t_sl, PROCSROW + 1, PROCSCOL + 9, 3); 441 putint(total.t_sw, PROCSROW + 1, PROCSCOL + 12, 3); 442 PUTRATE(uvmexp.forks, VMSTATROW + 0, VMSTATCOL + 3, 6); 443 PUTRATE(uvmexp.forks_ppwait, VMSTATROW + 1, VMSTATCOL + 3, 6); 444 PUTRATE(uvmexp.forks_sharevm, VMSTATROW + 2, VMSTATCOL + 3, 6); 445 PUTRATE(uvmexp.fltpgwait, VMSTATROW + 3, VMSTATCOL + 4, 5); 446 PUTRATE(uvmexp.fltrelck, VMSTATROW + 4, VMSTATCOL + 3, 6); 447 PUTRATE(uvmexp.fltrelckok, VMSTATROW + 5, VMSTATCOL + 3, 6); 448 PUTRATE(uvmexp.fltnoram, VMSTATROW + 6, VMSTATCOL + 3, 6); 449 PUTRATE(uvmexp.fltamcopy, VMSTATROW + 7, VMSTATCOL + 3, 6); 450 PUTRATE(uvmexp.flt_prcopy, VMSTATROW + 8, VMSTATCOL + 3, 6); 451 PUTRATE(uvmexp.flt_przero, VMSTATROW + 9, VMSTATCOL + 3, 6); 452 PUTRATE(uvmexp.flt_acow, VMSTATROW + 10, VMSTATCOL, 9); 453 putint(s.uvmexp.freemin, VMSTATROW + 11, VMSTATCOL, 9); 454 putint(s.uvmexp.freetarg, VMSTATROW + 12, VMSTATCOL, 9); 455 putint(s.uvmexp.inactarg, VMSTATROW + 13, VMSTATCOL, 9); 456 putint(s.uvmexp.wired, VMSTATROW + 14, VMSTATCOL, 9); 457 PUTRATE(uvmexp.pdfreed, VMSTATROW + 15, VMSTATCOL, 9); 458 if (LINES - 1 > VMSTATROW + 16) 459 PUTRATE(uvmexp.pdscans, VMSTATROW + 16, VMSTATCOL, 9); 460 461 PUTRATE(uvmexp.pageins, PAGEROW + 2, PAGECOL + 5, 5); 462 PUTRATE(uvmexp.pdpageouts, PAGEROW + 2, PAGECOL + 10, 5); 463 PUTRATE(uvmexp.swapins, PAGEROW + 2, PAGECOL + 15, 5); 464 PUTRATE(uvmexp.swapouts, PAGEROW + 2, PAGECOL + 20, 5); 465 PUTRATE(uvmexp.pgswapin, PAGEROW + 3, PAGECOL + 5, 5); 466 PUTRATE(uvmexp.pgswapout, PAGEROW + 3, PAGECOL + 10, 5); 467 468 PUTRATE(uvmexp.swtch, GENSTATROW + 1, GENSTATCOL, 5); 469 PUTRATE(uvmexp.traps, GENSTATROW + 1, GENSTATCOL + 5, 5); 470 PUTRATE(uvmexp.syscalls, GENSTATROW + 1, GENSTATCOL + 10, 5); 471 PUTRATE(uvmexp.intrs, GENSTATROW + 1, GENSTATCOL + 15, 5); 472 PUTRATE(uvmexp.softs, GENSTATROW + 1, GENSTATCOL + 20, 5); 473 PUTRATE(uvmexp.faults, GENSTATROW + 1, GENSTATCOL + 25, 5); 474 mvprintw(DISKROW, DISKCOL + 5, " "); 475 for (i = 0, c = 0; i < dk_ndrive && c < MAXDRIVES; i++) 476 if (dk_select[i]) { 477 mvprintw(DISKROW, DISKCOL + 5 + 5 * c, 478 " %4.4s", dr_name[i]); 479 dinfo(i, ++c); 480 } 481 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 482 putint(nchtotal.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9); 483 #define nz(x) ((x) ? (x) : 1) 484 putfloat(nchtotal.ncs_goodhits * 100.0 / nz(s.nchcount), 485 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 486 putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 487 putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), 488 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 489 #undef nz 490 } 491 492 void 493 vmstat_boot (args) 494 char *args; 495 { 496 copyinfo(&z, &s1); 497 state = BOOT; 498 } 499 500 void 501 vmstat_run (args) 502 char *args; 503 { 504 copyinfo(&s1, &s2); 505 state = RUN; 506 } 507 508 void 509 vmstat_time (args) 510 char * args; 511 { 512 state = TIME; 513 } 514 515 void 516 vmstat_zero (args) 517 char *args; 518 { 519 if (state == RUN) 520 getinfo(&s1, RUN); 521 } 522 523 /* calculate number of users on the system */ 524 static int 525 ucount() 526 { 527 int nusers = 0, onusers = -1; 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 if (nusers != onusers) { 536 if (nusers == 1) 537 mvprintw(STATROW, STATCOL + 8, " "); 538 else 539 mvprintw(STATROW, STATCOL + 8, "s"); 540 } 541 lseek(ut, (off_t)0, SEEK_SET); 542 onusers = nusers; 543 return (nusers); 544 } 545 546 static float 547 cputime(indx) 548 int indx; 549 { 550 double t; 551 int i; 552 553 t = 0; 554 for (i = 0; i < CPUSTATES; i++) 555 t += s.time[i]; 556 if (t == 0.0) 557 t = 1.0; 558 return (s.time[indx] * 100.0 / t); 559 } 560 561 static void 562 putint(n, l, c, w) 563 int n, l, c, w; 564 { 565 char b[128]; 566 567 move(l, c); 568 if (n == 0) { 569 while (w-- > 0) 570 addch(' '); 571 return; 572 } 573 (void)snprintf(b, sizeof b, "%*d", w, n); 574 if (strlen(b) > w) { 575 while (w-- > 0) 576 addch('*'); 577 return; 578 } 579 addstr(b); 580 } 581 582 static void 583 putfloat(f, l, c, w, d, nz) 584 double f; 585 int l, c, w, d, nz; 586 { 587 char b[128]; 588 589 move(l, c); 590 if (nz && f == 0.0) { 591 while (--w >= 0) 592 addch(' '); 593 return; 594 } 595 (void)snprintf(b, sizeof b, "%*.*f", w, d, f); 596 if (strlen(b) > w) { 597 while (--w >= 0) 598 addch('*'); 599 return; 600 } 601 addstr(b); 602 } 603 604 static void 605 getinfo(s, st) 606 struct Info *s; 607 enum state st; 608 { 609 int mib[2]; 610 size_t size; 611 612 dkreadstats(); 613 NREAD(X_CPTIME, s->time, sizeof s->time); 614 NREAD(X_NCHSTATS, &s->nchstats, sizeof s->nchstats); 615 NREAD(X_INTRCNT, s->intrcnt, nintr * LONG); 616 size = sizeof(s->uvmexp); 617 mib[0] = CTL_VM; 618 mib[1] = VM_UVMEXP; 619 if (sysctl(mib, 2, &s->uvmexp, &size, NULL, 0) < 0) { 620 error("can't get uvmexp: %s\n", strerror(errno)); 621 memset(&s->uvmexp, 0, sizeof(s->uvmexp)); 622 } 623 size = sizeof(s->Total); 624 mib[0] = CTL_VM; 625 mib[1] = VM_METER; 626 if (sysctl(mib, 2, &s->Total, &size, NULL, 0) < 0) { 627 error("Can't get kernel info: %s\n", strerror(errno)); 628 memset(&s->Total, 0, sizeof(s->Total)); 629 } 630 } 631 632 static void 633 allocinfo(s) 634 struct Info *s; 635 { 636 637 if ((s->intrcnt = malloc(nintr * sizeof(long))) == NULL) { 638 error("malloc failed"); 639 die(0); 640 } 641 } 642 643 static void 644 copyinfo(from, to) 645 struct Info *from, *to; 646 { 647 long *intrcnt; 648 649 intrcnt = to->intrcnt; 650 *to = *from; 651 memmove(to->intrcnt = intrcnt, from->intrcnt, nintr * sizeof (int)); 652 } 653 654 static void 655 dinfo(dn, c) 656 int dn, c; 657 { 658 double words, atime; 659 660 c = DISKCOL + c * 5; 661 662 /* time busy in disk activity */ 663 atime = (double)cur.dk_time[dn].tv_sec + 664 ((double)cur.dk_time[dn].tv_usec / (double)1000000); 665 666 words = cur.dk_bytes[dn] / 1024.0; /* # of K transferred */ 667 668 putint((int)((float)cur.dk_seek[dn]/etime+0.5), DISKROW + 1, c, 5); 669 putint((int)((float)cur.dk_xfer[dn]/etime+0.5), DISKROW + 2, c, 5); 670 putint((int)(words/etime + 0.5), DISKROW + 3, c, 5); 671 putfloat(atime/etime, DISKROW + 4, c, 5, 2, 1); 672 } 673
Indexes created Sat Sep 27 14:09:57 GMT 2025