1 /*- 2 * Copyright (c) 1983, 1989, 1992, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)vmstat.c 8.2 (Berkeley) 1/12/94 34 * $FreeBSD: src/usr.bin/systat/vmstat.c,v 1.38.2.4 2002/03/12 19:50:23 phantom Exp $ 35 * $DragonFly: src/usr.bin/systat/vmstat.c,v 1.4 2003/07/12 03:09:50 dillon Exp $ 36 */ 37 38 /* 39 * Cursed vmstat -- from Robert Elz. 40 */ 41 42 #include <sys/param.h> 43 #include <sys/stat.h> 44 #include <sys/time.h> 45 #include <sys/proc.h> 46 #include <sys/uio.h> 47 #include <sys/namei.h> 48 #include <sys/sysctl.h> 49 #include <sys/dkstat.h> 50 #include <sys/vmmeter.h> 51 52 #include <vm/vm_param.h> 53 54 #include <ctype.h> 55 #include <err.h> 56 #include <errno.h> 57 #include <langinfo.h> 58 #include <nlist.h> 59 #include <paths.h> 60 #include <signal.h> 61 #include <stdlib.h> 62 #include <string.h> 63 #include <time.h> 64 #include <unistd.h> 65 #include <utmp.h> 66 #include <devstat.h> 67 #include "systat.h" 68 #include "extern.h" 69 #include "devs.h" 70 71 static struct Info { 72 long time[CPUSTATES]; 73 struct vmmeter Vmm; 74 struct vmtotal Total; 75 struct vmstats Vms; 76 struct nchstats nchstats; 77 long nchcount; 78 long *intrcnt; 79 int bufspace; 80 int desiredvnodes; 81 long numvnodes; 82 long freevnodes; 83 long numdirtybuffers; 84 } s, s1, s2, z; 85 86 struct statinfo cur, last, run; 87 88 #define vmm s.Vmm 89 #define vms s.Vms 90 #define oldvmm s1.Vmm 91 #define oldvms s1.Vms 92 #define total s.Total 93 #define nchtotal s.nchstats 94 #define oldnchtotal s1.nchstats 95 96 static enum state { BOOT, TIME, RUN } state = TIME; 97 98 static void allocinfo __P((struct Info *)); 99 static void copyinfo __P((struct Info *, struct Info *)); 100 static float cputime __P((int)); 101 static void dinfo __P((int, int, struct statinfo *, struct statinfo *)); 102 static void getinfo __P((struct Info *, enum state)); 103 static void putint __P((int, int, int, int)); 104 static void putfloat __P((double, int, int, int, int, int)); 105 static void putlongdouble __P((long double, int, int, int, int, int)); 106 static int ucount __P((void)); 107 108 static int ncpu; 109 static int ut; 110 static char buf[26]; 111 static time_t t; 112 static double etime; 113 static int nintr; 114 static long *intrloc; 115 static char **intrname; 116 static int nextintsrow; 117 static int extended_vm_stats; 118 119 struct utmp utmp; 120 121 122 WINDOW * 123 openkre() 124 { 125 126 ut = open(_PATH_UTMP, O_RDONLY); 127 if (ut < 0) 128 error("No utmp"); 129 return (stdscr); 130 } 131 132 void 133 closekre(w) 134 WINDOW *w; 135 { 136 137 (void) close(ut); 138 if (w == NULL) 139 return; 140 wclear(w); 141 wrefresh(w); 142 } 143 144 145 static struct nlist namelist[] = { 146 #define X_CPTIME 0 147 { "_cp_time" }, 148 #define X_BUFFERSPACE 1 149 { "_bufspace" }, 150 #define X_NCHSTATS 2 151 { "_nchstats" }, 152 #define X_INTRNAMES 3 153 { "_intrnames" }, 154 #define X_EINTRNAMES 4 155 { "_eintrnames" }, 156 #define X_INTRCNT 5 157 { "_intrcnt" }, 158 #define X_EINTRCNT 6 159 { "_eintrcnt" }, 160 #define X_DESIREDVNODES 7 161 { "_desiredvnodes" }, 162 #define X_NUMVNODES 8 163 { "_numvnodes" }, 164 #define X_FREEVNODES 9 165 { "_freevnodes" }, 166 #define X_NUMDIRTYBUFFERS 10 167 { "_numdirtybuffers" }, 168 { "" }, 169 }; 170 171 /* 172 * These constants define where the major pieces are laid out 173 */ 174 #define STATROW 0 /* uses 1 row and 68 cols */ 175 #define STATCOL 2 176 #define MEMROW 2 /* uses 4 rows and 31 cols */ 177 #define MEMCOL 0 178 #define PAGEROW 2 /* uses 4 rows and 26 cols */ 179 #define PAGECOL 46 180 #define INTSROW 6 /* uses all rows to bottom and 17 cols */ 181 #define INTSCOL 61 182 #define PROCSROW 7 /* uses 2 rows and 20 cols */ 183 #define PROCSCOL 0 184 #define GENSTATROW 7 /* uses 2 rows and 30 cols */ 185 #define GENSTATCOL 20 186 #define VMSTATROW 6 /* uses 17 rows and 12 cols */ 187 #define VMSTATCOL 48 188 #define GRAPHROW 10 /* uses 3 rows and 51 cols */ 189 #define GRAPHCOL 0 190 #define NAMEIROW 14 /* uses 3 rows and 38 cols */ 191 #define NAMEICOL 0 192 #define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ 193 #define DISKCOL 0 194 195 #define DRIVESPACE 7 /* max # for space */ 196 197 #define MAXDRIVES DRIVESPACE /* max # to display */ 198 199 int 200 initkre() 201 { 202 char *intrnamebuf, *cp; 203 int i; 204 205 if (namelist[0].n_type == 0) { 206 if (kvm_nlist(kd, namelist)) { 207 nlisterr(namelist); 208 return(0); 209 } 210 if (namelist[0].n_type == 0) { 211 error("No namelist"); 212 return(0); 213 } 214 } 215 216 if (num_devices = getnumdevs() < 0) { 217 warnx("%s", devstat_errbuf); 218 return(0); 219 } 220 221 cur.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo)); 222 last.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo)); 223 run.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo)); 224 bzero(cur.dinfo, sizeof(struct devinfo)); 225 bzero(last.dinfo, sizeof(struct devinfo)); 226 bzero(run.dinfo, sizeof(struct devinfo)); 227 228 if (dsinit(MAXDRIVES, &cur, &last, &run) != 1) 229 return(0); 230 231 if (nintr == 0) { 232 nintr = (namelist[X_EINTRCNT].n_value - 233 namelist[X_INTRCNT].n_value) / sizeof (long); 234 intrloc = calloc(nintr, sizeof (long)); 235 intrname = calloc(nintr, sizeof (long)); 236 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 237 namelist[X_INTRNAMES].n_value); 238 if (intrnamebuf == 0 || intrname == 0 || intrloc == 0) { 239 error("Out of memory\n"); 240 if (intrnamebuf) 241 free(intrnamebuf); 242 if (intrname) 243 free(intrname); 244 if (intrloc) 245 free(intrloc); 246 nintr = 0; 247 return(0); 248 } 249 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 250 NVAL(X_INTRNAMES)); 251 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 252 intrname[i] = cp; 253 cp += strlen(cp) + 1; 254 } 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() 268 { 269 time_t now; 270 struct tm *tp; 271 static int d_first = -1; 272 273 if (d_first < 0) 274 d_first = (*nl_langinfo(D_MD_ORDER) == 'd'); 275 276 time(&now); 277 tp = localtime(&now); 278 (void) strftime(buf, sizeof(buf), 279 d_first ? "%e %b %R" : "%b %e %R", tp); 280 getinfo(&s, state); 281 } 282 283 void 284 labelkre() 285 { 286 register int i, j; 287 288 clear(); 289 mvprintw(STATROW, STATCOL + 4, "users Load"); 290 mvprintw(MEMROW, MEMCOL, "Mem:KB REAL VIRTUAL"); 291 mvprintw(MEMROW + 1, MEMCOL, " Tot Share Tot Share"); 292 mvprintw(MEMROW + 2, MEMCOL, "Act"); 293 mvprintw(MEMROW + 3, MEMCOL, "All"); 294 295 mvprintw(MEMROW + 1, MEMCOL + 41, "Free"); 296 297 mvprintw(PAGEROW, PAGECOL, " VN PAGER SWAP PAGER "); 298 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 299 mvprintw(PAGEROW + 2, PAGECOL, "count"); 300 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 301 302 mvprintw(INTSROW, INTSCOL + 3, " Interrupts"); 303 mvprintw(INTSROW + 1, INTSCOL + 9, "total"); 304 305 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "cow"); 306 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "wire"); 307 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "act"); 308 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "inact"); 309 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "cache"); 310 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "free"); 311 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "daefr"); 312 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "prcfr"); 313 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "react"); 314 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "pdwake"); 315 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "pdpgs"); 316 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "intrn"); 317 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "buf"); 318 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "dirtybuf"); 319 320 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "desiredvnodes"); 321 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "numvnodes"); 322 mvprintw(VMSTATROW + 17, VMSTATCOL + 10, "freevnodes"); 323 324 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 325 326 mvprintw(GRAPHROW, GRAPHCOL, 327 " . %%Sys . %%Intr . %%User . %%Nice . %%Idle"); 328 mvprintw(PROCSROW, PROCSCOL, "Proc:r p d s w"); 329 mvprintw(GRAPHROW + 1, GRAPHCOL, 330 "| | | | | | | | | | |"); 331 332 mvprintw(NAMEIROW, NAMEICOL, "Namei Name-cache Dir-cache"); 333 mvprintw(NAMEIROW + 1, NAMEICOL, 334 " Calls hits %% hits %%"); 335 mvprintw(DISKROW, DISKCOL, "Disks"); 336 mvprintw(DISKROW + 1, DISKCOL, "KB/t"); 337 mvprintw(DISKROW + 2, DISKCOL, "tps"); 338 mvprintw(DISKROW + 3, DISKCOL, "MB/s"); 339 mvprintw(DISKROW + 4, DISKCOL, "%% busy"); 340 /* 341 * For now, we don't support a fourth disk statistic. So there's 342 * no point in providing a label for it. If someone can think of a 343 * fourth useful disk statistic, there is room to add it. 344 */ 345 /* mvprintw(DISKROW + 4, DISKCOL, " msps"); */ 346 j = 0; 347 for (i = 0; i < num_devices && j < MAXDRIVES; i++) 348 if (dev_select[i].selected) { 349 char tmpstr[80]; 350 sprintf(tmpstr, "%s%d", dev_select[i].device_name, 351 dev_select[i].unit_number); 352 mvprintw(DISKROW, DISKCOL + 5 + 6 * j, 353 " %5.5s", tmpstr); 354 j++; 355 } 356 357 if (j <= 4) { 358 /* 359 * room for extended VM stats 360 */ 361 mvprintw(VMSTATROW + 11, VMSTATCOL - 6, "zfod"); 362 mvprintw(VMSTATROW + 12, VMSTATCOL - 6, "ofod"); 363 mvprintw(VMSTATROW + 13, VMSTATCOL - 6, "%%slo-z"); 364 mvprintw(VMSTATROW + 14, VMSTATCOL - 6, "tfree"); 365 extended_vm_stats = 1; 366 } else { 367 extended_vm_stats = 0; 368 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "zfod"); 369 } 370 371 for (i = 0; i < nintr; i++) { 372 if (intrloc[i] == 0) 373 continue; 374 mvprintw(intrloc[i], INTSCOL + 9, "%-10.10s", intrname[i]); 375 } 376 } 377 378 #define X(fld) {t=s.fld[i]; s.fld[i]-=s1.fld[i]; if(state==TIME) s1.fld[i]=t;} 379 #define Q(fld) {t=cur.fld[i]; cur.fld[i]-=last.fld[i]; if(state==TIME) last.fld[i]=t;} 380 #define Y(fld) {t = s.fld; s.fld -= s1.fld; if(state == TIME) s1.fld = t;} 381 #define Z(fld) {t = s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld; \ 382 if(state == TIME) s1.nchstats.fld = t;} 383 #define PUTRATE(fld, l, c, w) \ 384 Y(fld); \ 385 putint((int)((float)s.fld/etime + 0.5), l, c, w) 386 #define MAXFAIL 5 387 388 static char cpuchar[CPUSTATES] = { '=' , '+', '>', '-', ' ' }; 389 static char cpuorder[CPUSTATES] = { CP_SYS, CP_INTR, CP_USER, CP_NICE, 390 CP_IDLE }; 391 392 void 393 showkre() 394 { 395 float f1, f2; 396 int psiz, inttotal; 397 int i, l, c; 398 static int failcnt = 0; 399 400 etime = 0; 401 for(i = 0; i < CPUSTATES; i++) { 402 X(time); 403 Q(cp_time); 404 etime += s.time[i]; 405 } 406 if (etime < 100000.0) { /* < 100ms ignore this trash */ 407 if (failcnt++ >= MAXFAIL) { 408 clear(); 409 mvprintw(2, 10, "The alternate system clock has died!"); 410 mvprintw(3, 10, "Reverting to ``pigs'' display."); 411 move(CMDLINE, 0); 412 refresh(); 413 failcnt = 0; 414 sleep(5); 415 command("pigs"); 416 } 417 return; 418 } 419 failcnt = 0; 420 etime /= 1000000.0; 421 etime /= ncpu; 422 inttotal = 0; 423 for (i = 0; i < nintr; i++) { 424 if (s.intrcnt[i] == 0) 425 continue; 426 if (intrloc[i] == 0) { 427 if (nextintsrow == LINES) 428 continue; 429 intrloc[i] = nextintsrow++; 430 mvprintw(intrloc[i], INTSCOL + 9, "%-10.10s", 431 intrname[i]); 432 } 433 X(intrcnt); 434 l = (int)((float)s.intrcnt[i]/etime + 0.5); 435 inttotal += l; 436 putint(l, intrloc[i], INTSCOL + 2, 6); 437 } 438 putint(inttotal, INTSROW + 1, INTSCOL + 2, 6); 439 Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss); 440 Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); Z(ncs_neghits); 441 s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits + 442 nchtotal.ncs_miss + nchtotal.ncs_long + nchtotal.ncs_neghits; 443 if (state == TIME) 444 s1.nchcount = s.nchcount; 445 446 psiz = 0; 447 f2 = 0.0; 448 for (c = 0; c < CPUSTATES; c++) { 449 i = cpuorder[c]; 450 f1 = cputime(i); 451 f2 += f1; 452 l = (int) ((f2 + 1.0) / 2.0) - psiz; 453 if (f1 > 99.9) 454 f1 = 99.9; /* no room to display 100.0 */ 455 putfloat(f1, GRAPHROW, GRAPHCOL + 10 * c, 4, 1, 0); 456 move(GRAPHROW + 2, psiz); 457 psiz += l; 458 while (l-- > 0) 459 addch(cpuchar[c]); 460 } 461 462 putint(ucount(), STATROW, STATCOL, 3); 463 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 464 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 465 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 466 mvaddstr(STATROW, STATCOL + 53, buf); 467 #define pgtokb(pg) ((pg) * vms.v_page_size / 1024) 468 putint(pgtokb(total.t_arm), MEMROW + 2, MEMCOL + 3, 8); 469 putint(pgtokb(total.t_armshr), MEMROW + 2, MEMCOL + 11, 8); 470 putint(pgtokb(total.t_avm), MEMROW + 2, MEMCOL + 19, 9); 471 putint(pgtokb(total.t_avmshr), MEMROW + 2, MEMCOL + 28, 9); 472 putint(pgtokb(total.t_rm), MEMROW + 3, MEMCOL + 3, 8); 473 putint(pgtokb(total.t_rmshr), MEMROW + 3, MEMCOL + 11, 8); 474 putint(pgtokb(total.t_vm), MEMROW + 3, MEMCOL + 19, 9); 475 putint(pgtokb(total.t_vmshr), MEMROW + 3, MEMCOL + 28, 9); 476 putint(pgtokb(total.t_free), MEMROW + 2, MEMCOL + 37, 8); 477 putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 478 putint(total.t_pw, PROCSROW + 1, PROCSCOL + 6, 3); 479 putint(total.t_dw, PROCSROW + 1, PROCSCOL + 9, 3); 480 putint(total.t_sl, PROCSROW + 1, PROCSCOL + 12, 3); 481 putint(total.t_sw, PROCSROW + 1, PROCSCOL + 15, 3); 482 if (extended_vm_stats == 0) { 483 PUTRATE(Vmm.v_zfod, VMSTATROW + 0, VMSTATCOL + 4, 5); 484 } 485 PUTRATE(Vmm.v_cow_faults, VMSTATROW + 1, VMSTATCOL + 3, 6); 486 putint(pgtokb(vms.v_wire_count), VMSTATROW + 2, VMSTATCOL, 9); 487 putint(pgtokb(vms.v_active_count), VMSTATROW + 3, VMSTATCOL, 9); 488 putint(pgtokb(vms.v_inactive_count), VMSTATROW + 4, VMSTATCOL, 9); 489 putint(pgtokb(vms.v_cache_count), VMSTATROW + 5, VMSTATCOL, 9); 490 putint(pgtokb(vms.v_free_count), VMSTATROW + 6, VMSTATCOL, 9); 491 PUTRATE(Vmm.v_dfree, VMSTATROW + 7, VMSTATCOL, 9); 492 PUTRATE(Vmm.v_pfree, VMSTATROW + 8, VMSTATCOL, 9); 493 PUTRATE(Vmm.v_reactivated, VMSTATROW + 9, VMSTATCOL, 9); 494 PUTRATE(Vmm.v_pdwakeups, VMSTATROW + 10, VMSTATCOL, 9); 495 PUTRATE(Vmm.v_pdpages, VMSTATROW + 11, VMSTATCOL, 9); 496 PUTRATE(Vmm.v_intrans, VMSTATROW + 12, VMSTATCOL, 9); 497 498 if (extended_vm_stats) { 499 PUTRATE(Vmm.v_zfod, VMSTATROW + 11, VMSTATCOL - 16, 9); 500 PUTRATE(Vmm.v_ozfod, VMSTATROW + 12, VMSTATCOL - 16, 9); 501 putint( 502 ((s.Vmm.v_ozfod < s.Vmm.v_zfod) ? 503 s.Vmm.v_ozfod * 100 / s.Vmm.v_zfod : 504 0 505 ), 506 VMSTATROW + 13, 507 VMSTATCOL - 16, 508 9 509 ); 510 PUTRATE(Vmm.v_tfree, VMSTATROW + 14, VMSTATCOL - 16, 9); 511 } 512 513 putint(s.bufspace/1024, VMSTATROW + 13, VMSTATCOL, 9); 514 putint(s.numdirtybuffers, VMSTATROW + 14, VMSTATCOL, 9); 515 putint(s.desiredvnodes, VMSTATROW + 15, VMSTATCOL, 9); 516 putint(s.numvnodes, VMSTATROW + 16, VMSTATCOL, 9); 517 putint(s.freevnodes, VMSTATROW + 17, VMSTATCOL, 9); 518 PUTRATE(Vmm.v_vnodein, PAGEROW + 2, PAGECOL + 5, 5); 519 PUTRATE(Vmm.v_vnodeout, PAGEROW + 2, PAGECOL + 10, 5); 520 PUTRATE(Vmm.v_swapin, PAGEROW + 2, PAGECOL + 17, 5); 521 PUTRATE(Vmm.v_swapout, PAGEROW + 2, PAGECOL + 22, 5); 522 PUTRATE(Vmm.v_vnodepgsin, PAGEROW + 3, PAGECOL + 5, 5); 523 PUTRATE(Vmm.v_vnodepgsout, PAGEROW + 3, PAGECOL + 10, 5); 524 PUTRATE(Vmm.v_swappgsin, PAGEROW + 3, PAGECOL + 17, 5); 525 PUTRATE(Vmm.v_swappgsout, PAGEROW + 3, PAGECOL + 22, 5); 526 PUTRATE(Vmm.v_swtch, GENSTATROW + 1, GENSTATCOL, 5); 527 PUTRATE(Vmm.v_trap, GENSTATROW + 1, GENSTATCOL + 5, 5); 528 PUTRATE(Vmm.v_syscall, GENSTATROW + 1, GENSTATCOL + 10, 5); 529 PUTRATE(Vmm.v_intr, GENSTATROW + 1, GENSTATCOL + 15, 5); 530 PUTRATE(Vmm.v_soft, GENSTATROW + 1, GENSTATCOL + 20, 5); 531 PUTRATE(Vmm.v_vm_faults, GENSTATROW + 1, GENSTATCOL + 25, 5); 532 mvprintw(DISKROW, DISKCOL + 5, " "); 533 for (i = 0, c = 0; i < num_devices && c < MAXDRIVES; i++) 534 if (dev_select[i].selected) { 535 char tmpstr[80]; 536 sprintf(tmpstr, "%s%d", dev_select[i].device_name, 537 dev_select[i].unit_number); 538 mvprintw(DISKROW, DISKCOL + 5 + 6 * c, 539 " %5.5s", tmpstr); 540 switch(state) { 541 case TIME: 542 dinfo(i, ++c, &cur, &last); 543 break; 544 case RUN: 545 dinfo(i, ++c, &cur, &run); 546 break; 547 case BOOT: 548 dinfo(i, ++c, &cur, NULL); 549 break; 550 } 551 } 552 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 553 putint((nchtotal.ncs_goodhits + nchtotal.ncs_neghits), 554 NAMEIROW + 2, NAMEICOL + 9, 9); 555 #define nz(x) ((x) ? (x) : 1) 556 putfloat((nchtotal.ncs_goodhits+nchtotal.ncs_neghits) * 557 100.0 / nz(s.nchcount), 558 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 559 putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 560 putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), 561 NAMEIROW + 2, NAMEICOL + 33, 4, 0, 1); 562 #undef nz 563 } 564 565 int 566 cmdkre(cmd, args) 567 char *cmd, *args; 568 { 569 int retval; 570 571 if (prefix(cmd, "run")) { 572 retval = 1; 573 copyinfo(&s2, &s1); 574 switch (getdevs(&run)) { 575 case -1: 576 errx(1, "%s", devstat_errbuf); 577 break; 578 case 1: 579 num_devices = run.dinfo->numdevs; 580 generation = run.dinfo->generation; 581 retval = dscmd("refresh", NULL, MAXDRIVES, &cur); 582 if (retval == 2) 583 labelkre(); 584 break; 585 default: 586 break; 587 } 588 state = RUN; 589 return (retval); 590 } 591 if (prefix(cmd, "boot")) { 592 state = BOOT; 593 copyinfo(&z, &s1); 594 return (1); 595 } 596 if (prefix(cmd, "time")) { 597 state = TIME; 598 return (1); 599 } 600 if (prefix(cmd, "zero")) { 601 retval = 1; 602 if (state == RUN) { 603 getinfo(&s1, RUN); 604 switch (getdevs(&run)) { 605 case -1: 606 errx(1, "%s", devstat_errbuf); 607 break; 608 case 1: 609 num_devices = run.dinfo->numdevs; 610 generation = run.dinfo->generation; 611 retval = dscmd("refresh",NULL, MAXDRIVES, &cur); 612 if (retval == 2) 613 labelkre(); 614 break; 615 default: 616 break; 617 } 618 } 619 return (retval); 620 } 621 retval = dscmd(cmd, args, MAXDRIVES, &cur); 622 623 if (retval == 2) 624 labelkre(); 625 626 return(retval); 627 } 628 629 /* calculate number of users on the system */ 630 static int 631 ucount() 632 { 633 register int nusers = 0; 634 635 if (ut < 0) 636 return (0); 637 while (read(ut, &utmp, sizeof(utmp))) 638 if (utmp.ut_name[0] != '\0') 639 nusers++; 640 641 lseek(ut, 0L, L_SET); 642 return (nusers); 643 } 644 645 static float 646 cputime(indx) 647 int indx; 648 { 649 double t; 650 register int i; 651 652 t = 0; 653 for (i = 0; i < CPUSTATES; i++) 654 t += s.time[i]; 655 if (t == 0.0) 656 t = 1.0; 657 return (s.time[indx] * 100.0 / t); 658 } 659 660 static void 661 putint(n, l, c, w) 662 int n, l, c, w; 663 { 664 char b[128]; 665 666 move(l, c); 667 if (n == 0) { 668 while (w-- > 0) 669 addch(' '); 670 return; 671 } 672 snprintf(b, sizeof(b), "%*d", w, n); 673 if (strlen(b) > w) { 674 while (w-- > 0) 675 addch('*'); 676 return; 677 } 678 addstr(b); 679 } 680 681 static void 682 putfloat(f, l, c, w, d, nz) 683 double f; 684 int l, c, w, d, nz; 685 { 686 char b[128]; 687 688 move(l, c); 689 if (nz && f == 0.0) { 690 while (--w >= 0) 691 addch(' '); 692 return; 693 } 694 snprintf(b, sizeof(b), "%*.*f", w, d, f); 695 if (strlen(b) > w) 696 snprintf(b, sizeof(b), "%*.0f", w, f); 697 if (strlen(b) > w) { 698 while (--w >= 0) 699 addch('*'); 700 return; 701 } 702 addstr(b); 703 } 704 705 static void 706 putlongdouble(f, l, c, w, d, nz) 707 long double f; 708 int l, c, w, d, nz; 709 { 710 char b[128]; 711 712 move(l, c); 713 if (nz && f == 0.0) { 714 while (--w >= 0) 715 addch(' '); 716 return; 717 } 718 sprintf(b, "%*.*Lf", w, d, f); 719 if (strlen(b) > w) 720 sprintf(b, "%*.0Lf", w, f); 721 if (strlen(b) > w) { 722 while (--w >= 0) 723 addch('*'); 724 return; 725 } 726 addstr(b); 727 } 728 729 static void 730 getinfo(s, st) 731 struct Info *s; 732 enum state st; 733 { 734 struct devinfo *tmp_dinfo; 735 size_t size; 736 int mib[2]; 737 int vms_size = sizeof(s->Vms); 738 int vmm_size = sizeof(s->Vmm); 739 740 if (sysctlbyname("vm.vmstats", &s->Vms, &vms_size, NULL, 0)) { 741 perror("sysctlbyname: vm.vmstats"); 742 exit(1); 743 } 744 if (sysctlbyname("vm.vmmeter", &s->Vmm, &vmm_size, NULL, 0)) { 745 perror("sysctlbyname: vm.vmstats"); 746 exit(1); 747 } 748 749 NREAD(X_CPTIME, s->time, sizeof s->time); 750 NREAD(X_CPTIME, cur.cp_time, sizeof(cur.cp_time)); 751 NREAD(X_BUFFERSPACE, &s->bufspace, sizeof(s->bufspace)); 752 NREAD(X_DESIREDVNODES, &s->desiredvnodes, sizeof(s->desiredvnodes)); 753 NREAD(X_NUMVNODES, &s->numvnodes, LONG); 754 NREAD(X_FREEVNODES, &s->freevnodes, LONG); 755 NREAD(X_NCHSTATS, &s->nchstats, sizeof s->nchstats); 756 NREAD(X_INTRCNT, s->intrcnt, nintr * LONG); 757 NREAD(X_NUMDIRTYBUFFERS, &s->numdirtybuffers, sizeof(s->numdirtybuffers)); 758 size = sizeof(s->Total); 759 if (sysctlbyname("vm.vmtotal", &s->Total, &size, NULL, 0) < 0) { 760 error("Can't get kernel info: %s\n", strerror(errno)); 761 bzero(&s->Total, sizeof(s->Total)); 762 } 763 size = sizeof(ncpu); 764 if (sysctlbyname("hw.ncpu", &ncpu, &size, NULL, 0) < 0) 765 ncpu = 1; 766 767 tmp_dinfo = last.dinfo; 768 last.dinfo = cur.dinfo; 769 cur.dinfo = tmp_dinfo; 770 771 last.busy_time = cur.busy_time; 772 switch (getdevs(&cur)) { 773 case -1: 774 errx(1, "%s", devstat_errbuf); 775 break; 776 case 1: 777 num_devices = cur.dinfo->numdevs; 778 generation = cur.dinfo->generation; 779 cmdkre("refresh", NULL); 780 break; 781 default: 782 break; 783 } 784 } 785 786 static void 787 allocinfo(s) 788 struct Info *s; 789 { 790 791 s->intrcnt = (long *) calloc(nintr, sizeof(long)); 792 if (s->intrcnt == NULL) 793 errx(2, "out of memory"); 794 } 795 796 static void 797 copyinfo(from, to) 798 register struct Info *from, *to; 799 { 800 long *intrcnt; 801 802 /* 803 * time, wds, seek, and xfer are malloc'd so we have to 804 * save the pointers before the structure copy and then 805 * copy by hand. 806 */ 807 intrcnt = to->intrcnt; 808 *to = *from; 809 810 bcopy(from->intrcnt, to->intrcnt = intrcnt, nintr * sizeof (int)); 811 } 812 813 static void 814 dinfo(dn, c, now, then) 815 int dn, c; 816 struct statinfo *now, *then; 817 { 818 long double transfers_per_second; 819 long double kb_per_transfer, mb_per_second; 820 long double elapsed_time, device_busy; 821 int di; 822 823 di = dev_select[dn].position; 824 825 elapsed_time = compute_etime(now->busy_time, then ? 826 then->busy_time : 827 now->dinfo->devices[di].dev_creation_time); 828 829 device_busy = compute_etime(now->dinfo->devices[di].busy_time, then ? 830 then->dinfo->devices[di].busy_time : 831 now->dinfo->devices[di].dev_creation_time); 832 833 if (compute_stats(&now->dinfo->devices[di], then ? 834 &then->dinfo->devices[di] : NULL, elapsed_time, 835 NULL, NULL, NULL, 836 &kb_per_transfer, &transfers_per_second, 837 &mb_per_second, NULL, NULL) != 0) 838 errx(1, "%s", devstat_errbuf); 839 840 if ((device_busy == 0) && (transfers_per_second > 5)) 841 /* the device has been 100% busy, fake it because 842 * as long as the device is 100% busy the busy_time 843 * field in the devstat struct is not updated */ 844 device_busy = elapsed_time; 845 if (device_busy > elapsed_time) 846 /* this normally happens after one or more periods 847 * where the device has been 100% busy, correct it */ 848 device_busy = elapsed_time; 849 850 c = DISKCOL + c * 6; 851 putlongdouble(kb_per_transfer, DISKROW + 1, c, 5, 2, 0); 852 putlongdouble(transfers_per_second, DISKROW + 2, c, 5, 0, 0); 853 putlongdouble(mb_per_second, DISKROW + 3, c, 5, 2, 0); 854 putlongdouble(device_busy * 100 / elapsed_time, DISKROW + 4, c, 5, 0, 0); 855 } 856