1 /* $OpenBSD: vmstat.c,v 1.41 2003/06/03 02:56:17 millert Exp $ */ 2 /* $NetBSD: vmstat.c,v 1.5 1996/05/10 23:16:40 thorpej Exp $ */ 3 4 /*- 5 * Copyright (c) 1983, 1989, 1992, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #ifndef lint 34 #if 0 35 static char sccsid[] = "@(#)vmstat.c 8.2 (Berkeley) 1/12/94"; 36 #endif 37 static char rcsid[] = "$OpenBSD: vmstat.c,v 1.41 2003/06/03 02:56:17 millert Exp $"; 38 #endif /* not lint */ 39 40 /* 41 * Cursed vmstat -- from Robert Elz. 42 */ 43 44 #include <sys/param.h> 45 #include <sys/dkstat.h> 46 #include <sys/buf.h> 47 #include <sys/stat.h> 48 #include <sys/time.h> 49 #include <sys/user.h> 50 #include <sys/proc.h> 51 #include <sys/namei.h> 52 #include <sys/sysctl.h> 53 54 #include <uvm/uvm_extern.h> 55 56 #include <ctype.h> 57 #include <err.h> 58 #include <nlist.h> 59 #include <paths.h> 60 #include <signal.h> 61 #include <stdlib.h> 62 #include <string.h> 63 #include <utmp.h> 64 #include <unistd.h> 65 66 #if defined(__i386__) 67 #define _KERNEL 68 #include <machine/psl.h> 69 #undef _KERNEL 70 #endif 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 int *intrcnt; 82 } s, s1, s2, z; 83 84 #include "dkstats.h" 85 extern struct _disk cur; 86 87 #define cnt s.Cnt 88 #define oldcnt s1.Cnt 89 #define total s.Total 90 #define nchtotal s.nchstats 91 #define oldnchtotal s1.nchstats 92 93 static enum state { BOOT, TIME, RUN } state = TIME; 94 95 static void allocinfo(struct Info *); 96 static void copyinfo(struct Info *, struct Info *); 97 static float cputime(int); 98 static void dinfo(int, int); 99 static void getinfo(struct Info *, enum state); 100 static void putint(int, int, int, int); 101 static void putfloat(double, int, int, int, int, int); 102 static int ucount(void); 103 104 static int ut; 105 static char buf[26]; 106 static time_t t; 107 static double etime; 108 static float hertz; 109 static int nintr; 110 static long *intrloc; 111 static char **intrname; 112 static int nextintsrow; 113 114 struct utmp utmp; 115 116 WINDOW * 117 openkre(void) 118 { 119 120 ut = open(_PATH_UTMP, O_RDONLY); 121 if (ut < 0) 122 error("No utmp"); 123 return (stdscr); 124 } 125 126 void 127 closekre(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_INTRNAMES 0 /* no sysctl */ 140 { "_intrnames" }, 141 #define X_EINTRNAMES 1 /* no sysctl */ 142 { "_eintrnames" }, 143 #define X_INTRCNT 2 /* no sysctl */ 144 { "_intrcnt" }, 145 #define X_EINTRCNT 3 /* no sysctl */ 146 { "_eintrcnt" }, 147 #if defined(__i386__) 148 #define X_INTRHAND 4 /* no sysctl */ 149 { "_intrhand" }, 150 #endif 151 { "" }, 152 }; 153 154 /* 155 * These constants define where the major pieces are laid out 156 */ 157 #define STATROW 0 /* uses 1 row and 68 cols */ 158 #define STATCOL 2 159 #define MEMROW 2 /* uses 4 rows and 31 cols */ 160 #define MEMCOL 0 161 #define PAGEROW 2 /* uses 4 rows and 26 cols */ 162 #define PAGECOL 37 163 #define INTSROW 2 /* uses all rows to bottom and 17 cols */ 164 #define INTSCOL 63 165 #define PROCSROW 7 /* uses 2 rows and 20 cols */ 166 #define PROCSCOL 0 167 #define GENSTATROW 7 /* uses 2 rows and 35 cols */ 168 #define GENSTATCOL 16 169 #define VMSTATROW 7 /* uses 17 rows and 12 cols */ 170 #define VMSTATCOL 48 171 #define GRAPHROW 10 /* uses 3 rows and 51 cols */ 172 #define GRAPHCOL 0 173 #define NAMEIROW 14 /* uses 3 rows and 49 cols */ 174 #define NAMEICOL 0 175 #define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ 176 #define DISKCOL 0 177 178 #define DRIVESPACE 45 /* max space for drives */ 179 180 int 181 initkre(void) 182 { 183 char *intrnamebuf, *cp; 184 int i, ret; 185 186 if (namelist[0].n_type == 0) { 187 if ((ret = kvm_nlist(kd, namelist)) == -1) 188 errx(1, "%s", kvm_geterr(kd)); 189 else if (ret) 190 nlisterr(namelist); 191 if (namelist[0].n_type == 0) { 192 error("No namelist"); 193 return(0); 194 } 195 } 196 hertz = stathz ? stathz : hz; 197 if (!dkinit(1)) 198 return(0); 199 if (nintr == 0) { 200 #if defined(__i386__) 201 struct intrhand *intrhand[16], *ihp, ih; 202 char iname[16]; 203 int namelen, n; 204 205 NREAD(X_INTRHAND, intrhand, sizeof(intrhand)); 206 for (namelen = 0, i = 0; i < 16; i++) { 207 ihp = intrhand[i]; 208 while (ihp) { 209 nintr++; 210 KREAD(ihp, &ih, sizeof(ih)); 211 KREAD(ih.ih_what, iname, 16); 212 namelen += strlen(iname) + 1; 213 ihp = ih.ih_next; 214 } 215 } 216 intrloc = calloc(nintr, sizeof (long)); 217 intrname = calloc(nintr, sizeof (char *)); 218 cp = intrnamebuf = malloc(namelen); 219 for (i = 0, n = 0; i < 16; i++) { 220 ihp = intrhand[i]; 221 while (ihp) { 222 KREAD(ihp, &ih, sizeof(ih)); 223 KREAD(ih.ih_what, iname, 16); 224 intrname[n++] = cp; 225 strlcpy(cp, iname, intrnamebuf + namelen - cp); 226 cp += strlen(iname) + 1; 227 ihp = ih.ih_next; 228 } 229 } 230 #else 231 nintr = (namelist[X_EINTRCNT].n_value - 232 namelist[X_INTRCNT].n_value) / sizeof (int); 233 intrloc = calloc(nintr, sizeof (long)); 234 intrname = calloc(nintr, sizeof (long)); 235 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 236 namelist[X_INTRNAMES].n_value); 237 if (intrnamebuf == 0 || intrname == 0 || intrloc == 0) { 238 error("Out of memory\n"); 239 if (intrnamebuf) 240 free(intrnamebuf); 241 if (intrname) 242 free(intrname); 243 if (intrloc) 244 free(intrloc); 245 nintr = 0; 246 return(0); 247 } 248 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 249 NVAL(X_INTRNAMES)); 250 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 251 intrname[i] = cp; 252 cp += strlen(cp) + 1; 253 } 254 #endif 255 nextintsrow = INTSROW + 2; 256 allocinfo(&s); 257 allocinfo(&s1); 258 allocinfo(&s2); 259 allocinfo(&z); 260 } 261 getinfo(&s2, RUN); 262 copyinfo(&s2, &s1); 263 return(1); 264 } 265 266 void 267 fetchkre(void) 268 { 269 time_t now; 270 271 time(&now); 272 strlcpy(buf, ctime(&now), sizeof buf); 273 getinfo(&s, state); 274 } 275 276 void 277 labelkre(void) 278 { 279 int i, j, l; 280 281 clear(); 282 mvprintw(STATROW, STATCOL + 4, "users Load"); 283 mvprintw(MEMROW, MEMCOL, " memory totals (in KB)"); 284 mvprintw(MEMROW + 1, MEMCOL, " real virtual free"); 285 mvprintw(MEMROW + 2, MEMCOL, "Active"); 286 mvprintw(MEMROW + 3, MEMCOL, "All"); 287 288 mvprintw(PAGEROW, PAGECOL, " PAGING SWAPPING "); 289 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 290 mvprintw(PAGEROW + 2, PAGECOL, "ops"); 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, "forks"); 297 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "fkppw"); 298 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "fksvm"); 299 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "pwait"); 300 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "relck"); 301 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "rlkok"); 302 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "noram"); 303 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "ndcpy"); 304 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "fltcp"); 305 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "zfod"); 306 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "cow"); 307 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "fmin"); 308 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "ftarg"); 309 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "itarg"); 310 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "wired"); 311 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "pdfre"); 312 if (LINES - 1 > VMSTATROW + 16) 313 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "pdscn"); 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 d s w"); 320 mvprintw(GRAPHROW + 1, GRAPHCOL, 321 "| | | | | | | | | | |"); 322 323 mvprintw(NAMEIROW, NAMEICOL, 324 "Namei Sys-cache Proc-cache No-cache"); 325 mvprintw(NAMEIROW + 1, NAMEICOL, 326 " Calls hits %% hits %% miss %%"); 327 mvprintw(DISKROW, DISKCOL, "Discs"); 328 mvprintw(DISKROW + 1, DISKCOL, "seeks"); 329 mvprintw(DISKROW + 2, DISKCOL, "xfers"); 330 mvprintw(DISKROW + 3, DISKCOL, "Kbyte"); 331 mvprintw(DISKROW + 4, DISKCOL, " sec"); 332 for (i = 0, j = 0; i < cur.dk_ndrive && j < DRIVESPACE; i++) 333 if (cur.dk_select[i] && (j + strlen(dr_name[i])) < DRIVESPACE) { 334 l = MAX(4, strlen(dr_name[i])); 335 mvprintw(DISKROW, DISKCOL + 5 + j, 336 " %*s", l, dr_name[i]); 337 j += 1 + l; 338 } 339 for (i = 0; i < nintr; i++) { 340 if (intrloc[i] == 0) 341 continue; 342 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", intrname[i]); 343 } 344 } 345 346 #define X(fld) {t=s.fld[i]; s.fld[i]-=s1.fld[i]; if (state==TIME) s1.fld[i]=t;} 347 #define Y(fld) {t = s.fld; s.fld -= s1.fld; if (state == TIME) s1.fld = t;} 348 #define Z(fld) {t = s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld; \ 349 if (state == TIME) s1.nchstats.fld = t;} 350 #define PUTRATE(fld, l, c, w) \ 351 Y(fld); \ 352 putint((int)((float)s.fld/etime + 0.5), l, c, w) 353 #define MAXFAIL 5 354 355 static char cpuchar[CPUSTATES] = { '=' , '>', '-', ' ' }; 356 static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_IDLE }; 357 358 void 359 showkre(void) 360 { 361 float f1, f2; 362 int psiz, inttotal; 363 int i, l, c; 364 static int failcnt = 0; 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 /* 435 * The above code does not account for time in the CP_INTR state. 436 * Thus the total may be less than 100%. If the total is less than 437 * the previous total old data may be left on the graph. The graph 438 * assumes one character position for every 2 percentage points for 439 * a total of 50 positions. Ensure all positions have been filled. 440 */ 441 while ( psiz++ <= 50 ) 442 addch(' '); 443 444 putint(ucount(), STATROW, STATCOL, 3); 445 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 446 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 447 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 448 mvaddstr(STATROW, STATCOL + 53, buf); 449 #define pgtokb(pg) ((pg) * (s.uvmexp.pagesize / 1024)) 450 451 putint(pgtokb(s.uvmexp.active), MEMROW + 2, MEMCOL + 6, 7); 452 putint(pgtokb(s.uvmexp.active + s.uvmexp.swpginuse), /* XXX */ 453 MEMROW + 2, MEMCOL + 16, 7); 454 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free), MEMROW + 3, MEMCOL + 6, 7); 455 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free + s.uvmexp.swpginuse), 456 MEMROW + 3, MEMCOL + 16, 7); 457 putint(pgtokb(s.uvmexp.free), MEMROW + 2, MEMCOL + 24, 7); 458 putint(pgtokb(s.uvmexp.free + s.uvmexp.swpages - s.uvmexp.swpginuse), 459 MEMROW + 3, MEMCOL + 24, 7); 460 putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 461 462 putint(total.t_dw, PROCSROW + 1, PROCSCOL + 6, 3); 463 putint(total.t_sl, PROCSROW + 1, PROCSCOL + 9, 3); 464 putint(total.t_sw, PROCSROW + 1, PROCSCOL + 12, 3); 465 PUTRATE(uvmexp.forks, VMSTATROW + 0, VMSTATCOL + 3, 6); 466 PUTRATE(uvmexp.forks_ppwait, VMSTATROW + 1, VMSTATCOL + 3, 6); 467 PUTRATE(uvmexp.forks_sharevm, VMSTATROW + 2, VMSTATCOL + 3, 6); 468 PUTRATE(uvmexp.fltpgwait, VMSTATROW + 3, VMSTATCOL + 4, 5); 469 PUTRATE(uvmexp.fltrelck, VMSTATROW + 4, VMSTATCOL + 3, 6); 470 PUTRATE(uvmexp.fltrelckok, VMSTATROW + 5, VMSTATCOL + 3, 6); 471 PUTRATE(uvmexp.fltnoram, VMSTATROW + 6, VMSTATCOL + 3, 6); 472 PUTRATE(uvmexp.fltamcopy, VMSTATROW + 7, VMSTATCOL + 3, 6); 473 PUTRATE(uvmexp.flt_prcopy, VMSTATROW + 8, VMSTATCOL + 3, 6); 474 PUTRATE(uvmexp.flt_przero, VMSTATROW + 9, VMSTATCOL + 3, 6); 475 PUTRATE(uvmexp.flt_acow, VMSTATROW + 10, VMSTATCOL, 9); 476 putint(s.uvmexp.freemin, VMSTATROW + 11, VMSTATCOL, 9); 477 putint(s.uvmexp.freetarg, VMSTATROW + 12, VMSTATCOL, 9); 478 putint(s.uvmexp.inactarg, VMSTATROW + 13, VMSTATCOL, 9); 479 putint(s.uvmexp.wired, VMSTATROW + 14, VMSTATCOL, 9); 480 PUTRATE(uvmexp.pdfreed, VMSTATROW + 15, VMSTATCOL, 9); 481 if (LINES - 1 > VMSTATROW + 16) 482 PUTRATE(uvmexp.pdscans, VMSTATROW + 16, VMSTATCOL, 9); 483 484 PUTRATE(uvmexp.pageins, PAGEROW + 2, PAGECOL + 5, 5); 485 PUTRATE(uvmexp.pdpageouts, PAGEROW + 2, PAGECOL + 10, 5); 486 PUTRATE(uvmexp.swapins, PAGEROW + 2, PAGECOL + 15, 5); 487 PUTRATE(uvmexp.swapouts, PAGEROW + 2, PAGECOL + 20, 5); 488 PUTRATE(uvmexp.pgswapin, PAGEROW + 3, PAGECOL + 5, 5); 489 PUTRATE(uvmexp.pgswapout, PAGEROW + 3, PAGECOL + 10, 5); 490 491 PUTRATE(uvmexp.swtch, GENSTATROW + 1, GENSTATCOL, 6); 492 PUTRATE(uvmexp.traps, GENSTATROW + 1, GENSTATCOL + 6, 6); 493 PUTRATE(uvmexp.syscalls, GENSTATROW + 1, GENSTATCOL + 12, 6); 494 PUTRATE(uvmexp.intrs, GENSTATROW + 1, GENSTATCOL + 18, 6); 495 PUTRATE(uvmexp.softs, GENSTATROW + 1, GENSTATCOL + 24, 6); 496 PUTRATE(uvmexp.faults, GENSTATROW + 1, GENSTATCOL + 30, 5); 497 mvprintw(DISKROW, DISKCOL + 5, " "); 498 for (i = 0, c = 0; i < cur.dk_ndrive && c < DRIVESPACE; i++) 499 if (cur.dk_select[i] && (c + strlen(dr_name[i])) < DRIVESPACE) { 500 l = MAX(4, strlen(dr_name[i])); 501 mvprintw(DISKROW, DISKCOL + 5 + c, 502 " %*s", l, dr_name[i]); 503 c += 1 + l; 504 dinfo(i, c); 505 } 506 /* and pad the DRIVESPACE */ 507 l = DRIVESPACE - c; 508 for (i = 0; i < 5; i++) 509 mvprintw(DISKROW + i, DISKCOL + 5 + c, "%*s", l, ""); 510 511 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 512 putint(nchtotal.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 10, 8); 513 #define nz(x) ((x) ? (x) : 1) 514 putfloat(nchtotal.ncs_goodhits * 100.0 / nz(s.nchcount), 515 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 516 putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 24, 7); 517 putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), 518 NAMEIROW + 2, NAMEICOL + 33, 4, 0, 1); 519 putint(nchtotal.ncs_miss - nchtotal.ncs_pass2, 520 NAMEIROW + 2, NAMEICOL + 38, 7); 521 putfloat((nchtotal.ncs_miss - nchtotal.ncs_pass2) * 522 100.0 / nz(s.nchcount), NAMEIROW + 2, NAMEICOL + 45, 4, 0, 1); 523 #undef nz 524 } 525 526 int 527 cmdkre(char *cmd, char *args) 528 { 529 530 if (prefix(cmd, "run")) { 531 copyinfo(&s2, &s1); 532 state = RUN; 533 return (1); 534 } 535 if (prefix(cmd, "boot")) { 536 state = BOOT; 537 copyinfo(&z, &s1); 538 return (1); 539 } 540 if (prefix(cmd, "time")) { 541 state = TIME; 542 return (1); 543 } 544 if (prefix(cmd, "zero")) { 545 if (state == RUN) 546 getinfo(&s1, RUN); 547 return (1); 548 } 549 return (dkcmd(cmd, args)); 550 } 551 552 /* calculate number of users on the system */ 553 static int 554 ucount(void) 555 { 556 int nusers = 0; 557 558 if (ut < 0) 559 return (0); 560 while (read(ut, &utmp, sizeof(utmp))) 561 if (utmp.ut_name[0] != '\0') 562 nusers++; 563 564 lseek(ut, 0, SEEK_SET); 565 return (nusers); 566 } 567 568 static float 569 cputime(int indx) 570 { 571 double t; 572 int i; 573 574 t = 0; 575 for (i = 0; i < CPUSTATES; i++) 576 t += s.time[i]; 577 if (t == 0.0) 578 t = 1.0; 579 return (s.time[indx] * 100.0 / t); 580 } 581 582 static void 583 putint(int n, int l, int c, int w) 584 { 585 char b[128]; 586 587 move(l, c); 588 if (n == 0) { 589 while (w-- > 0) 590 addch(' '); 591 return; 592 } 593 snprintf(b, sizeof b, "%*d", w, n); 594 if (strlen(b) > w) { 595 while (w-- > 0) 596 addch('*'); 597 return; 598 } 599 addstr(b); 600 } 601 602 static void 603 putfloat(double f, int l, int c, int w, int d, int nz) 604 { 605 char b[128]; 606 607 move(l, c); 608 if (nz && f == 0.0) { 609 while (--w >= 0) 610 addch(' '); 611 return; 612 } 613 snprintf(b, sizeof b, "%*.*f", w, d, f); 614 if (strlen(b) > w) { 615 while (--w >= 0) 616 addch('*'); 617 return; 618 } 619 addstr(b); 620 } 621 622 static void 623 getinfo(struct Info *s, enum state st) 624 { 625 static int cp_time_mib[] = { CTL_KERN, KERN_CPTIME }; 626 static int nchstats_mib[2] = { CTL_KERN, KERN_NCHSTATS }; 627 static int uvmexp_mib[2] = { CTL_VM, VM_UVMEXP }; 628 static int vmtotal_mib[2] = { CTL_VM, VM_METER }; 629 size_t size; 630 #if defined(__i386__) 631 struct intrhand *intrhand[16], *ihp, ih; 632 int i, n; 633 #endif 634 635 dkreadstats(); 636 #if defined(__i386__) 637 NREAD(X_INTRHAND, intrhand, sizeof(intrhand)); 638 for (i = 0, n = 0; i < 16; i++) { 639 ihp = intrhand[i]; 640 while (ihp) { 641 KREAD(ihp, &ih, sizeof(ih)); 642 s->intrcnt[n++] = ih.ih_count; 643 ihp = ih.ih_next; 644 } 645 } 646 #else 647 NREAD(X_INTRCNT, s->intrcnt, nintr * sizeof(int)); 648 #endif 649 size = sizeof(s->time); 650 if (sysctl(cp_time_mib, 2, &s->time, &size, NULL, 0) < 0) { 651 error("Can't get KERN_CPTIME: %s\n", strerror(errno)); 652 bzero(&s->time, sizeof(s->time)); 653 } 654 655 size = sizeof(s->nchstats); 656 if (sysctl(nchstats_mib, 2, &s->nchstats, &size, NULL, 0) < 0) { 657 error("Can't get KERN_NCHSTATS: %s\n", strerror(errno)); 658 bzero(&s->nchstats, sizeof(s->nchstats)); 659 } 660 661 size = sizeof(s->uvmexp); 662 if (sysctl(uvmexp_mib, 2, &s->uvmexp, &size, NULL, 0) < 0) { 663 error("Can't get VM_UVMEXP: %s\n", strerror(errno)); 664 bzero(&s->uvmexp, sizeof(s->uvmexp)); 665 } 666 667 size = sizeof(s->Total); 668 if (sysctl(vmtotal_mib, 2, &s->Total, &size, NULL, 0) < 0) { 669 error("Can't get VM_METER: %s\n", strerror(errno)); 670 bzero(&s->Total, sizeof(s->Total)); 671 } 672 } 673 674 static void 675 allocinfo(struct Info *s) 676 { 677 678 s->intrcnt = (int *) malloc(nintr * sizeof(int)); 679 if (s->intrcnt == NULL) 680 errx(2, "out of memory"); 681 } 682 683 static void 684 copyinfo(struct Info *from, struct Info *to) 685 { 686 int *intrcnt; 687 688 intrcnt = to->intrcnt; 689 *to = *from; 690 bcopy(from->intrcnt, to->intrcnt = intrcnt, nintr * sizeof (int)); 691 } 692 693 static void 694 dinfo(int dn, int c) 695 { 696 double words, atime; 697 698 c += DISKCOL; 699 700 /* time busy in disk activity */ 701 atime = (double)cur.dk_time[dn].tv_sec + 702 ((double)cur.dk_time[dn].tv_usec / (double)1000000); 703 704 words = cur.dk_bytes[dn] / 1024.0; /* # of K transferred */ 705 706 putint((int)((float)cur.dk_seek[dn]/etime+0.5), DISKROW + 1, c, 5); 707 putint((int)((float)cur.dk_xfer[dn]/etime+0.5), DISKROW + 2, c, 5); 708 putint((int)(words/etime + 0.5), DISKROW + 3, c, 5); 709 putfloat(atime/etime, DISKROW + 4, c, 5, 1, 1); 710 } 711