vmstat.c revision 12805
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 34#ifndef lint 35static char sccsid[] = "@(#)vmstat.c 8.2 (Berkeley) 1/12/94"; 36#endif /* not lint */ 37 38/* 39 * Cursed vmstat -- from Robert Elz. 40 */ 41 42#include <sys/param.h> 43#include <sys/dkstat.h> 44#include <sys/buf.h> 45#include <sys/stat.h> 46#include <sys/time.h> 47#include <sys/user.h> 48#include <sys/proc.h> 49#include <sys/namei.h> 50#include <sys/sysctl.h> 51#include <sys/vmmeter.h> 52#include <vm/vm.h> 53 54#include <signal.h> 55#include <nlist.h> 56#include <ctype.h> 57#include <utmp.h> 58#include <paths.h> 59#include <string.h> 60#include <stdlib.h> 61#include <unistd.h> 62#include "systat.h" 63#include "extern.h" 64 65static struct Info { 66 long time[CPUSTATES]; 67 struct vmmeter Cnt; 68 struct vmtotal Total; 69 long *dk_time; 70 long *dk_wds; 71 long *dk_seek; 72 long *dk_xfer; 73 int dk_busy; 74 struct nchstats nchstats; 75 long nchcount; 76 long *intrcnt; 77 int bufspace; 78} s, s1, s2, z; 79 80#define cnt s.Cnt 81#define oldcnt s1.Cnt 82#define total s.Total 83#define nchtotal s.nchstats 84#define oldnchtotal s1.nchstats 85 86static enum state { BOOT, TIME, RUN } state = TIME; 87 88static void allocinfo __P((struct Info *)); 89static void copyinfo __P((struct Info *, struct Info *)); 90static float cputime __P((int)); 91static void dinfo __P((int, int)); 92static void getinfo __P((struct Info *, enum state)); 93static void putint __P((int, int, int, int)); 94static void putfloat __P((double, int, int, int, int, int)); 95static int ucount __P((void)); 96 97static int ut; 98static char buf[26]; 99static time_t t; 100static double etime; 101static int nintr; 102static long *intrloc; 103static char **intrname; 104static int nextintsrow; 105 106struct utmp utmp; 107 108 109WINDOW * 110openkre() 111{ 112 113 ut = open(_PATH_UTMP, O_RDONLY); 114 if (ut < 0) 115 error("No utmp"); 116 return (stdscr); 117} 118 119void 120closekre(w) 121 WINDOW *w; 122{ 123 124 (void) close(ut); 125 if (w == NULL) 126 return; 127 wclear(w); 128 wrefresh(w); 129} 130 131 132static struct nlist namelist[] = { 133#define X_CPTIME 0 134 { "_cp_time" }, 135#define X_CNT 1 136 { "_cnt" }, 137#define X_BUFFERSPACE 2 138 { "_bufspace" }, 139#define X_DK_BUSY 3 140 { "_dk_busy" }, 141#define X_DK_TIME 4 142 { "_dk_time" }, 143#define X_DK_XFER 5 144 { "_dk_xfer" }, 145#define X_DK_WDS 6 146 { "_dk_wds" }, 147#define X_DK_SEEK 7 148 { "_dk_seek" }, 149#define X_NCHSTATS 8 150 { "_nchstats" }, 151#define X_INTRNAMES 9 152 { "_intrnames" }, 153#define X_EINTRNAMES 10 154 { "_eintrnames" }, 155#define X_INTRCNT 11 156 { "_intrcnt" }, 157#define X_EINTRCNT 12 158 { "_eintrcnt" }, 159 { "" }, 160}; 161 162/* 163 * These constants define where the major pieces are laid out 164 */ 165#define STATROW 0 /* uses 1 row and 68 cols */ 166#define STATCOL 2 167#define MEMROW 2 /* uses 4 rows and 31 cols */ 168#define MEMCOL 0 169#define PAGEROW 2 /* uses 4 rows and 26 cols */ 170#define PAGECOL 36 171#define INTSROW 2 /* uses all rows to bottom and 17 cols */ 172#define INTSCOL 61 173#define PROCSROW 7 /* uses 2 rows and 20 cols */ 174#define PROCSCOL 0 175#define GENSTATROW 7 /* uses 2 rows and 30 cols */ 176#define GENSTATCOL 20 177#define VMSTATROW 6 /* uses 17 rows and 12 cols */ 178#define VMSTATCOL 48 179#define GRAPHROW 10 /* uses 3 rows and 51 cols */ 180#define GRAPHCOL 0 181#define NAMEIROW 14 /* uses 3 rows and 38 cols */ 182#define NAMEICOL 0 183#define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ 184#define DISKCOL 0 185 186#define DRIVESPACE 9 /* max # for space */ 187 188#if DK_NDRIVE > DRIVESPACE 189#define MAXDRIVES DRIVESPACE /* max # to display */ 190#else 191#define MAXDRIVES DK_NDRIVE /* max # to display */ 192#endif 193 194int 195initkre() 196{ 197 char *intrnamebuf, *cp; 198 int i; 199 static int once = 0; 200 201 if (namelist[0].n_type == 0) { 202 if (kvm_nlist(kd, namelist)) { 203 nlisterr(namelist); 204 return(0); 205 } 206 if (namelist[0].n_type == 0) { 207 error("No namelist"); 208 return(0); 209 } 210 } 211 if (! dkinit()) 212 return(0); 213 if (dk_ndrive && !once) { 214#define allocate(e, t) \ 215 s./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 216 s1./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 217 s2./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 218 z./**/e = (t *)calloc(dk_ndrive, sizeof (t)); 219 allocate(dk_time, long); 220 allocate(dk_wds, long); 221 allocate(dk_seek, long); 222 allocate(dk_xfer, long); 223 once = 1; 224#undef allocate 225 } 226 if (nintr == 0) { 227 nintr = (namelist[X_EINTRCNT].n_value - 228 namelist[X_INTRCNT].n_value) / sizeof (long); 229 intrloc = calloc(nintr, sizeof (long)); 230 intrname = calloc(nintr, sizeof (long)); 231 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 232 namelist[X_INTRNAMES].n_value); 233 if (intrnamebuf == 0 || intrname == 0 || intrloc == 0) { 234 error("Out of memory\n"); 235 if (intrnamebuf) 236 free(intrnamebuf); 237 if (intrname) 238 free(intrname); 239 if (intrloc) 240 free(intrloc); 241 nintr = 0; 242 return(0); 243 } 244 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 245 NVAL(X_INTRNAMES)); 246 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 247 intrname[i] = cp; 248 cp += strlen(cp) + 1; 249 } 250 nextintsrow = INTSROW + 2; 251 allocinfo(&s); 252 allocinfo(&s1); 253 allocinfo(&s2); 254 allocinfo(&z); 255 } 256 getinfo(&s2, RUN); 257 copyinfo(&s2, &s1); 258 return(1); 259} 260 261void 262fetchkre() 263{ 264 time_t now; 265 266 time(&now); 267 strcpy(buf, ctime(&now)); 268 buf[16] = '\0'; 269 getinfo(&s, state); 270} 271 272void 273labelkre() 274{ 275 register int i, j; 276 277 clear(); 278 mvprintw(STATROW, STATCOL + 4, "users Load"); 279 mvprintw(MEMROW, MEMCOL, "Mem:KB REAL VIRTUAL"); 280 mvprintw(MEMROW + 1, MEMCOL, " Tot Share Tot Share"); 281 mvprintw(MEMROW + 2, MEMCOL, "Act"); 282 mvprintw(MEMROW + 3, MEMCOL, "All"); 283 284 mvprintw(MEMROW + 1, MEMCOL + 31, "Free"); 285 286 mvprintw(PAGEROW, PAGECOL, " VN PAGER SWAP PAGER "); 287 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 288 mvprintw(PAGEROW + 2, PAGECOL, "count"); 289 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 290 291 mvprintw(INTSROW, INTSCOL + 3, " Interrupts"); 292 mvprintw(INTSROW + 1, INTSCOL + 9, "total"); 293 294 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "cow"); 295 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "zfod"); 296 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "wire"); 297 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "act"); 298 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "inact"); 299 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "cache"); 300 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "free"); 301 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "daefr"); 302 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "prcfr"); 303 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "react"); 304 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "pdwake"); 305 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "pdpgs"); 306 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "intrn"); 307 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "buf"); 308 309 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 310 311 mvprintw(GRAPHROW, GRAPHCOL, 312 " . %%Sys . %%Intr . %%User . %%Nice . %%Idle"); 313 mvprintw(PROCSROW, PROCSCOL, "Proc:r p d s w"); 314 mvprintw(GRAPHROW + 1, GRAPHCOL, 315 "| | | | | | | | | | |"); 316 317 mvprintw(NAMEIROW, NAMEICOL, "Namei Name-cache Proc-cache"); 318 mvprintw(NAMEIROW + 1, NAMEICOL, 319 " Calls hits %% hits %%"); 320 mvprintw(DISKROW, DISKCOL, "Discs"); 321 mvprintw(DISKROW + 1, DISKCOL, "seeks"); 322 mvprintw(DISKROW + 2, DISKCOL, "xfers"); 323 mvprintw(DISKROW + 3, DISKCOL, " blks"); 324 mvprintw(DISKROW + 4, DISKCOL, " msps"); 325 j = 0; 326 for (i = 0; i < dk_ndrive && j < MAXDRIVES; i++) 327 if (dk_select[i]) { 328 mvprintw(DISKROW, DISKCOL + 5 + 5 * j, 329 " %3.3s", dr_name[j]); 330 j++; 331 } 332 for (i = 0; i < nintr; i++) { 333 if (intrloc[i] == 0) 334 continue; 335 mvprintw(intrloc[i], INTSCOL + 9, "%-10.10s", intrname[i]); 336 } 337} 338 339#define X(fld) {t=s.fld[i]; s.fld[i]-=s1.fld[i]; if(state==TIME) s1.fld[i]=t;} 340#define Y(fld) {t = s.fld; s.fld -= s1.fld; if(state == TIME) s1.fld = t;} 341#define Z(fld) {t = s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld; \ 342 if(state == TIME) s1.nchstats.fld = t;} 343#define PUTRATE(fld, l, c, w) \ 344 Y(fld); \ 345 putint((int)((float)s.fld/etime + 0.5), l, c, w) 346#define MAXFAIL 5 347 348static char cpuchar[CPUSTATES] = { '=' , '+', '>', '-', ' ' }; 349static char cpuorder[CPUSTATES] = { CP_SYS, CP_INTR, CP_USER, CP_NICE, 350 CP_IDLE }; 351 352void 353showkre() 354{ 355 float f1, f2; 356 int psiz, inttotal; 357 int i, l, c; 358 static int failcnt = 0; 359 360 for (i = 0; i < dk_ndrive; i++) { 361 X(dk_xfer); X(dk_seek); X(dk_wds); X(dk_time); 362 } 363 etime = 0; 364 for(i = 0; i < CPUSTATES; i++) { 365 X(time); 366 etime += s.time[i]; 367 } 368 if (etime < 5.0) { /* < 5 ticks - ignore this trash */ 369 if (failcnt++ >= MAXFAIL) { 370 clear(); 371 mvprintw(2, 10, "The alternate system clock has died!"); 372 mvprintw(3, 10, "Reverting to ``pigs'' display."); 373 move(CMDLINE, 0); 374 refresh(); 375 failcnt = 0; 376 sleep(5); 377 command("pigs"); 378 } 379 return; 380 } 381 failcnt = 0; 382 etime /= hertz; 383 inttotal = 0; 384 for (i = 0; i < nintr; i++) { 385 if (s.intrcnt[i] == 0) 386 continue; 387 if (intrloc[i] == 0) { 388 if (nextintsrow == LINES) 389 continue; 390 intrloc[i] = nextintsrow++; 391 mvprintw(intrloc[i], INTSCOL + 9, "%-10.10s", 392 intrname[i]); 393 } 394 X(intrcnt); 395 l = (int)((float)s.intrcnt[i]/etime + 0.5); 396 inttotal += l; 397 putint(l, intrloc[i], INTSCOL + 2, 6); 398 } 399 putint(inttotal, INTSROW + 1, INTSCOL + 2, 6); 400 Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss); 401 Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); Z(ncs_neghits); 402 s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits + 403 nchtotal.ncs_miss + nchtotal.ncs_long + nchtotal.ncs_neghits; 404 if (state == TIME) 405 s1.nchcount = s.nchcount; 406 407 psiz = 0; 408 f2 = 0.0; 409 for (c = 0; c < CPUSTATES; c++) { 410 i = cpuorder[c]; 411 f1 = cputime(i); 412 f2 += f1; 413 l = (int) ((f2 + 1.0) / 2.0) - psiz; 414 if (f1 > 99.9) 415 f1 = 99.9; /* no room to display 100.0 */ 416 putfloat(f1, GRAPHROW, GRAPHCOL + 10 * c, 4, 1, 0); 417 move(GRAPHROW + 2, psiz); 418 psiz += l; 419 while (l-- > 0) 420 addch(cpuchar[c]); 421 } 422 423 putint(ucount(), STATROW, STATCOL, 3); 424 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 425 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 426 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 427 mvaddstr(STATROW, STATCOL + 53, buf); 428#define pgtokb(pg) ((pg) * cnt.v_page_size / 1024) 429 putint(pgtokb(total.t_arm), MEMROW + 2, MEMCOL + 3, 6); 430 putint(pgtokb(total.t_armshr), MEMROW + 2, MEMCOL + 9, 6); 431 putint(pgtokb(total.t_avm), MEMROW + 2, MEMCOL + 15, 7); 432 putint(pgtokb(total.t_avmshr), MEMROW + 2, MEMCOL + 22, 7); 433 putint(pgtokb(total.t_rm), MEMROW + 3, MEMCOL + 3, 6); 434 putint(pgtokb(total.t_rmshr), MEMROW + 3, MEMCOL + 9, 6); 435 putint(pgtokb(total.t_vm), MEMROW + 3, MEMCOL + 15, 7); 436 putint(pgtokb(total.t_vmshr), MEMROW + 3, MEMCOL + 22, 7); 437 putint(pgtokb(total.t_free), MEMROW + 2, MEMCOL + 29, 6); 438 putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 439 putint(total.t_pw, PROCSROW + 1, PROCSCOL + 6, 3); 440 putint(total.t_dw, PROCSROW + 1, PROCSCOL + 9, 3); 441 putint(total.t_sl, PROCSROW + 1, PROCSCOL + 12, 3); 442 putint(total.t_sw, PROCSROW + 1, PROCSCOL + 15, 3); 443 PUTRATE(Cnt.v_cow_faults, VMSTATROW + 0, VMSTATCOL + 3, 6); 444 PUTRATE(Cnt.v_zfod, VMSTATROW + 1, VMSTATCOL + 4, 5); 445 putint(pgtokb(cnt.v_wire_count), VMSTATROW + 2, VMSTATCOL, 9); 446 putint(pgtokb(cnt.v_active_count), VMSTATROW + 3, VMSTATCOL, 9); 447 putint(pgtokb(cnt.v_inactive_count), VMSTATROW + 4, VMSTATCOL, 9); 448 putint(pgtokb(cnt.v_cache_count), VMSTATROW + 5, VMSTATCOL, 9); 449 putint(pgtokb(cnt.v_free_count), VMSTATROW + 6, VMSTATCOL, 9); 450 PUTRATE(Cnt.v_dfree, VMSTATROW + 7, VMSTATCOL, 9); 451 PUTRATE(Cnt.v_pfree, VMSTATROW + 8, VMSTATCOL, 9); 452 PUTRATE(Cnt.v_reactivated, VMSTATROW + 9, VMSTATCOL, 9); 453 PUTRATE(Cnt.v_pdwakeups, VMSTATROW + 10, VMSTATCOL, 9); 454 PUTRATE(Cnt.v_pdpages, VMSTATROW + 11, VMSTATCOL, 9); 455 PUTRATE(Cnt.v_intrans, VMSTATROW + 12, VMSTATCOL, 9); 456 putint(s.bufspace/1024, VMSTATROW + 13, VMSTATCOL, 9); 457 PUTRATE(Cnt.v_vnodein, PAGEROW + 2, PAGECOL + 5, 5); 458 PUTRATE(Cnt.v_vnodeout, PAGEROW + 2, PAGECOL + 10, 5); 459 PUTRATE(Cnt.v_swapin, PAGEROW + 2, PAGECOL + 17, 5); 460 PUTRATE(Cnt.v_swapout, PAGEROW + 2, PAGECOL + 22, 5); 461 PUTRATE(Cnt.v_vnodepgsin, PAGEROW + 3, PAGECOL + 5, 5); 462 PUTRATE(Cnt.v_vnodepgsout, PAGEROW + 3, PAGECOL + 10, 5); 463 PUTRATE(Cnt.v_swappgsin, PAGEROW + 3, PAGECOL + 17, 5); 464 PUTRATE(Cnt.v_swappgsout, PAGEROW + 3, PAGECOL + 22, 5); 465 PUTRATE(Cnt.v_swtch, GENSTATROW + 1, GENSTATCOL, 5); 466 PUTRATE(Cnt.v_trap, GENSTATROW + 1, GENSTATCOL + 5, 5); 467 PUTRATE(Cnt.v_syscall, GENSTATROW + 1, GENSTATCOL + 10, 5); 468 PUTRATE(Cnt.v_intr, GENSTATROW + 1, GENSTATCOL + 15, 5); 469 PUTRATE(Cnt.v_soft, GENSTATROW + 1, GENSTATCOL + 20, 5); 470 PUTRATE(Cnt.v_vm_faults, GENSTATROW + 1, GENSTATCOL + 25, 5); 471 mvprintw(DISKROW, DISKCOL + 5, " "); 472 for (i = 0, c = 0; i < dk_ndrive && c < MAXDRIVES; i++) 473 if (dk_select[i]) { 474 mvprintw(DISKROW, DISKCOL + 5 + 5 * c, 475 " %3.3s", dr_name[i]); 476 dinfo(i, ++c); 477 } 478 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 479 putint((nchtotal.ncs_goodhits + nchtotal.ncs_neghits), 480 NAMEIROW + 2, NAMEICOL + 9, 9); 481#define nz(x) ((x) ? (x) : 1) 482 putfloat((nchtotal.ncs_goodhits+nchtotal.ncs_neghits) * 483 100.0 / 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 491int 492cmdkre(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 */ 519static int 520ucount() 521{ 522 register 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, 0L, L_SET); 531 return (nusers); 532} 533 534static float 535cputime(indx) 536 int indx; 537{ 538 double t; 539 register 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 549static void 550putint(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 sprintf(b, "%*d", w, n); 562 if (strlen(b) > w) { 563 while (w-- > 0) 564 addch('*'); 565 return; 566 } 567 addstr(b); 568} 569 570static void 571putfloat(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 sprintf(b, "%*.*f", w, d, f); 584 if (strlen(b) > w) { 585 while (--w >= 0) 586 addch('*'); 587 return; 588 } 589 addstr(b); 590} 591 592static void 593getinfo(s, st) 594 struct Info *s; 595 enum state st; 596{ 597 int mib[2], size; 598 extern int errno; 599 600 NREAD(X_CPTIME, s->time, sizeof s->time); 601 NREAD(X_CNT, &s->Cnt, sizeof s->Cnt); 602 NREAD(X_BUFFERSPACE, &s->bufspace, LONG); 603 NREAD(X_DK_BUSY, &s->dk_busy, LONG); 604 NREAD(X_DK_TIME, s->dk_time, dk_ndrive * LONG); 605 NREAD(X_DK_XFER, s->dk_xfer, dk_ndrive * LONG); 606 NREAD(X_DK_WDS, s->dk_wds, dk_ndrive * LONG); 607 NREAD(X_DK_SEEK, s->dk_seek, dk_ndrive * LONG); 608 NREAD(X_NCHSTATS, &s->nchstats, sizeof s->nchstats); 609 NREAD(X_INTRCNT, s->intrcnt, nintr * LONG); 610 size = sizeof(s->Total); 611 mib[0] = CTL_VM; 612 mib[1] = VM_METER; 613 if (sysctl(mib, 2, &s->Total, &size, NULL, 0) < 0) { 614 error("Can't get kernel info: %s\n", strerror(errno)); 615 bzero(&s->Total, sizeof(s->Total)); 616 } 617} 618 619static void 620allocinfo(s) 621 struct Info *s; 622{ 623 624 s->intrcnt = (long *) malloc(nintr * sizeof(long)); 625 if (s->intrcnt == NULL) { 626 fprintf(stderr, "systat: out of memory\n"); 627 exit(2); 628 } 629} 630 631static void 632copyinfo(from, to) 633 register struct Info *from, *to; 634{ 635 long *time, *wds, *seek, *xfer; 636 long *intrcnt; 637 638 /* 639 * time, wds, seek, and xfer are malloc'd so we have to 640 * save the pointers before the structure copy and then 641 * copy by hand. 642 */ 643 time = to->dk_time; wds = to->dk_wds; seek = to->dk_seek; 644 xfer = to->dk_xfer; intrcnt = to->intrcnt; 645 *to = *from; 646 bcopy(from->dk_time, to->dk_time = time, dk_ndrive * sizeof (long)); 647 bcopy(from->dk_wds, to->dk_wds = wds, dk_ndrive * sizeof (long)); 648 bcopy(from->dk_seek, to->dk_seek = seek, dk_ndrive * sizeof (long)); 649 bcopy(from->dk_xfer, to->dk_xfer = xfer, dk_ndrive * sizeof (long)); 650 bcopy(from->intrcnt, to->intrcnt = intrcnt, nintr * sizeof (int)); 651} 652 653static void 654dinfo(dn, c) 655 int dn, c; 656{ 657 double words, atime, itime, xtime; 658 659 c = DISKCOL + c * 5; 660 atime = s.dk_time[dn]; 661 atime /= hertz; 662 words = s.dk_wds[dn]*32.0; /* number of words transferred */ 663 xtime = dk_mspw[dn]*words; /* transfer time */ 664 itime = atime - xtime; /* time not transferring */ 665 if (xtime < 0) 666 itime += xtime, xtime = 0; 667 if (itime < 0) 668 xtime += itime, itime = 0; 669 putint((int)((float)s.dk_seek[dn]/etime+0.5), DISKROW + 1, c, 5); 670 putint((int)((float)s.dk_xfer[dn]/etime+0.5), DISKROW + 2, c, 5); 671 putint((int)(words/etime/512.0 + 0.5), DISKROW + 3, c, 5); 672 if (s.dk_seek[dn]) 673 putfloat(itime*1000.0/s.dk_seek[dn], DISKROW + 4, c, 5, 1, 1); 674 else 675 putint(0, DISKROW + 4, c, 5); 676} 677