1 /*- 2 * Copyright (c) 1983, 1989, 1992, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 8 #ifndef lint 9 static char sccsid[] = "@(#)vmstat.c 8.2 (Berkeley) 01/12/94"; 10 #endif /* not lint */ 11 12 /* 13 * Cursed vmstat -- from Robert Elz. 14 */ 15 16 #include <sys/param.h> 17 #include <sys/dkstat.h> 18 #include <sys/buf.h> 19 #include <sys/stat.h> 20 #include <sys/time.h> 21 #include <sys/user.h> 22 #include <sys/proc.h> 23 #include <sys/namei.h> 24 #include <sys/sysctl.h> 25 #include <vm/vm.h> 26 27 #include <signal.h> 28 #include <nlist.h> 29 #include <ctype.h> 30 #include <utmp.h> 31 #include <paths.h> 32 #include <string.h> 33 #include <stdlib.h> 34 #include <unistd.h> 35 #include "systat.h" 36 #include "extern.h" 37 38 static struct Info { 39 long time[CPUSTATES]; 40 struct vmmeter Cnt; 41 struct vmtotal Total; 42 long *dk_time; 43 long *dk_wds; 44 long *dk_seek; 45 long *dk_xfer; 46 int dk_busy; 47 struct nchstats nchstats; 48 long nchcount; 49 long *intrcnt; 50 } s, s1, s2, z; 51 52 #define cnt s.Cnt 53 #define oldcnt s1.Cnt 54 #define total s.Total 55 #define nchtotal s.nchstats 56 #define oldnchtotal s1.nchstats 57 58 static enum state { BOOT, TIME, RUN } state = TIME; 59 60 static void allocinfo __P((struct Info *)); 61 static void copyinfo __P((struct Info *, struct Info *)); 62 static float cputime __P((int)); 63 static void dinfo __P((int, int)); 64 static void getinfo __P((struct Info *, enum state)); 65 static void putint __P((int, int, int, int)); 66 static void putfloat __P((double, int, int, int, int, int)); 67 static int ucount __P((void)); 68 69 static int ut; 70 static char buf[26]; 71 static time_t t; 72 static double etime; 73 static float hertz; 74 static int nintr; 75 static long *intrloc; 76 static char **intrname; 77 static int nextintsrow; 78 79 struct utmp utmp; 80 81 82 WINDOW * 83 openkre() 84 { 85 86 ut = open(_PATH_UTMP, O_RDONLY); 87 if (ut < 0) 88 error("No utmp"); 89 return (stdscr); 90 } 91 92 void 93 closekre(w) 94 WINDOW *w; 95 { 96 97 (void) close(ut); 98 if (w == NULL) 99 return; 100 wclear(w); 101 wrefresh(w); 102 } 103 104 105 static struct nlist namelist[] = { 106 #define X_CPTIME 0 107 { "_cp_time" }, 108 #define X_CNT 1 109 { "_cnt" }, 110 #define X_TOTAL 2 111 { "_total" }, 112 #define X_DK_BUSY 3 113 { "_dk_busy" }, 114 #define X_DK_TIME 4 115 { "_dk_time" }, 116 #define X_DK_XFER 5 117 { "_dk_xfer" }, 118 #define X_DK_WDS 6 119 { "_dk_wds" }, 120 #define X_DK_SEEK 7 121 { "_dk_seek" }, 122 #define X_NCHSTATS 8 123 { "_nchstats" }, 124 #define X_INTRNAMES 9 125 { "_intrnames" }, 126 #define X_EINTRNAMES 10 127 { "_eintrnames" }, 128 #define X_INTRCNT 11 129 { "_intrcnt" }, 130 #define X_EINTRCNT 12 131 { "_eintrcnt" }, 132 { "" }, 133 }; 134 135 /* 136 * These constants define where the major pieces are laid out 137 */ 138 #define STATROW 0 /* uses 1 row and 68 cols */ 139 #define STATCOL 2 140 #define MEMROW 2 /* uses 4 rows and 31 cols */ 141 #define MEMCOL 0 142 #define PAGEROW 2 /* uses 4 rows and 26 cols */ 143 #define PAGECOL 36 144 #define INTSROW 2 /* uses all rows to bottom and 17 cols */ 145 #define INTSCOL 63 146 #define PROCSROW 7 /* uses 2 rows and 20 cols */ 147 #define PROCSCOL 0 148 #define GENSTATROW 7 /* uses 2 rows and 30 cols */ 149 #define GENSTATCOL 20 150 #define VMSTATROW 7 /* uses 17 rows and 12 cols */ 151 #define VMSTATCOL 48 152 #define GRAPHROW 10 /* uses 3 rows and 51 cols */ 153 #define GRAPHCOL 0 154 #define NAMEIROW 14 /* uses 3 rows and 38 cols */ 155 #define NAMEICOL 0 156 #define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ 157 #define DISKCOL 0 158 159 #define DRIVESPACE 9 /* max # for space */ 160 161 #if DK_NDRIVE > DRIVESPACE 162 #define MAXDRIVES DRIVESPACE /* max # to display */ 163 #else 164 #define MAXDRIVES DK_NDRIVE /* max # to display */ 165 #endif 166 167 int 168 initkre() 169 { 170 char *intrnamebuf, *cp; 171 int i; 172 static int once = 0; 173 174 if (namelist[0].n_type == 0) { 175 if (kvm_nlist(kd, namelist)) { 176 nlisterr(namelist); 177 return(0); 178 } 179 if (namelist[0].n_type == 0) { 180 error("No namelist"); 181 return(0); 182 } 183 } 184 hertz = stathz ? stathz : hz; 185 if (! dkinit()) 186 return(0); 187 if (dk_ndrive && !once) { 188 #define allocate(e, t) \ 189 s./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 190 s1./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 191 s2./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 192 z./**/e = (t *)calloc(dk_ndrive, sizeof (t)); 193 allocate(dk_time, long); 194 allocate(dk_wds, long); 195 allocate(dk_seek, long); 196 allocate(dk_xfer, long); 197 once = 1; 198 #undef allocate 199 } 200 if (nintr == 0) { 201 nintr = (namelist[X_EINTRCNT].n_value - 202 namelist[X_INTRCNT].n_value) / sizeof (long); 203 intrloc = calloc(nintr, sizeof (long)); 204 intrname = calloc(nintr, sizeof (long)); 205 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 206 namelist[X_INTRNAMES].n_value); 207 if (intrnamebuf == 0 || intrname == 0 || intrloc == 0) { 208 error("Out of memory\n"); 209 if (intrnamebuf) 210 free(intrnamebuf); 211 if (intrname) 212 free(intrname); 213 if (intrloc) 214 free(intrloc); 215 nintr = 0; 216 return(0); 217 } 218 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 219 NVAL(X_INTRNAMES)); 220 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 221 intrname[i] = cp; 222 cp += strlen(cp) + 1; 223 } 224 nextintsrow = INTSROW + 2; 225 allocinfo(&s); 226 allocinfo(&s1); 227 allocinfo(&s2); 228 allocinfo(&z); 229 } 230 getinfo(&s2, RUN); 231 copyinfo(&s2, &s1); 232 return(1); 233 } 234 235 void 236 fetchkre() 237 { 238 time_t now; 239 240 time(&now); 241 strcpy(buf, ctime(&now)); 242 buf[16] = '\0'; 243 getinfo(&s, state); 244 } 245 246 void 247 labelkre() 248 { 249 register int i, j; 250 251 clear(); 252 mvprintw(STATROW, STATCOL + 4, "users Load"); 253 mvprintw(MEMROW, MEMCOL, "Mem:KB REAL VIRTUAL"); 254 mvprintw(MEMROW + 1, MEMCOL, " Tot Share Tot Share"); 255 mvprintw(MEMROW + 2, MEMCOL, "Act"); 256 mvprintw(MEMROW + 3, MEMCOL, "All"); 257 258 mvprintw(MEMROW + 1, MEMCOL + 31, "Free"); 259 260 mvprintw(PAGEROW, PAGECOL, " PAGING SWAPPING "); 261 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 262 mvprintw(PAGEROW + 2, PAGECOL, "count"); 263 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 264 265 mvprintw(INTSROW, INTSCOL + 3, " Interrupts"); 266 mvprintw(INTSROW + 1, INTSCOL + 9, "total"); 267 268 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "cow"); 269 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "objlk"); 270 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "objht"); 271 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "zfod"); 272 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "nzfod"); 273 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "%%zfod"); 274 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "kern"); 275 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "wire"); 276 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "act"); 277 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "inact"); 278 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "free"); 279 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "daefr"); 280 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "prcfr"); 281 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "react"); 282 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "scan"); 283 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "hdrev"); 284 if (LINES - 1 > VMSTATROW + 16) 285 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "intrn"); 286 287 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 288 289 mvprintw(GRAPHROW, GRAPHCOL, 290 " . %% Sys . %% User . %% Nice . %% Idle"); 291 mvprintw(PROCSROW, PROCSCOL, "Proc:r p d s w"); 292 mvprintw(GRAPHROW + 1, GRAPHCOL, 293 "| | | | | | | | | | |"); 294 295 mvprintw(NAMEIROW, NAMEICOL, "Namei Sys-cache Proc-cache"); 296 mvprintw(NAMEIROW + 1, NAMEICOL, 297 " Calls hits %% hits %%"); 298 mvprintw(DISKROW, DISKCOL, "Discs"); 299 mvprintw(DISKROW + 1, DISKCOL, "seeks"); 300 mvprintw(DISKROW + 2, DISKCOL, "xfers"); 301 mvprintw(DISKROW + 3, DISKCOL, " blks"); 302 mvprintw(DISKROW + 4, DISKCOL, " msps"); 303 j = 0; 304 for (i = 0; i < dk_ndrive && j < MAXDRIVES; i++) 305 if (dk_select[i]) { 306 mvprintw(DISKROW, DISKCOL + 5 + 5 * j, 307 " %3.3s", dr_name[j]); 308 j++; 309 } 310 for (i = 0; i < nintr; i++) { 311 if (intrloc[i] == 0) 312 continue; 313 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", intrname[i]); 314 } 315 } 316 317 #define X(fld) {t=s.fld[i]; s.fld[i]-=s1.fld[i]; if(state==TIME) s1.fld[i]=t;} 318 #define Y(fld) {t = s.fld; s.fld -= s1.fld; if(state == TIME) s1.fld = t;} 319 #define Z(fld) {t = s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld; \ 320 if(state == TIME) s1.nchstats.fld = t;} 321 #define PUTRATE(fld, l, c, w) \ 322 Y(fld); \ 323 putint((int)((float)s.fld/etime + 0.5), l, c, w) 324 #define MAXFAIL 5 325 326 static char cpuchar[CPUSTATES] = { '=' , '>', '-', ' ' }; 327 static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_IDLE }; 328 329 void 330 showkre() 331 { 332 float f1, f2; 333 int psiz, inttotal; 334 int i, l, c; 335 static int failcnt = 0; 336 337 for (i = 0; i < dk_ndrive; i++) { 338 X(dk_xfer); X(dk_seek); X(dk_wds); X(dk_time); 339 } 340 etime = 0; 341 for(i = 0; i < CPUSTATES; i++) { 342 X(time); 343 etime += s.time[i]; 344 } 345 if (etime < 5.0) { /* < 5 ticks - ignore this trash */ 346 if (failcnt++ >= MAXFAIL) { 347 clear(); 348 mvprintw(2, 10, "The alternate system clock has died!"); 349 mvprintw(3, 10, "Reverting to ``pigs'' display."); 350 move(CMDLINE, 0); 351 refresh(); 352 failcnt = 0; 353 sleep(5); 354 command("pigs"); 355 } 356 return; 357 } 358 failcnt = 0; 359 etime /= hertz; 360 inttotal = 0; 361 for (i = 0; i < nintr; i++) { 362 if (s.intrcnt[i] == 0) 363 continue; 364 if (intrloc[i] == 0) { 365 if (nextintsrow == LINES) 366 continue; 367 intrloc[i] = nextintsrow++; 368 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", 369 intrname[i]); 370 } 371 X(intrcnt); 372 l = (int)((float)s.intrcnt[i]/etime + 0.5); 373 inttotal += l; 374 putint(l, intrloc[i], INTSCOL, 8); 375 } 376 putint(inttotal, INTSROW + 1, INTSCOL, 8); 377 Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss); 378 Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); 379 s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits + 380 nchtotal.ncs_miss + nchtotal.ncs_long; 381 if (state == TIME) 382 s1.nchcount = s.nchcount; 383 384 psiz = 0; 385 f2 = 0.0; 386 387 /* 388 * Last CPU state not calculated yet. 389 */ 390 for (c = 0; c < CPUSTATES - 1; c++) { 391 i = cpuorder[c]; 392 f1 = cputime(i); 393 f2 += f1; 394 l = (int) ((f2 + 1.0) / 2.0) - psiz; 395 if (c == 0) 396 putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0); 397 else 398 putfloat(f1, GRAPHROW, GRAPHCOL + 12 * c, 399 5, 1, 0); 400 move(GRAPHROW + 2, psiz); 401 psiz += l; 402 while (l-- > 0) 403 addch(cpuchar[c]); 404 } 405 406 putint(ucount(), STATROW, STATCOL, 3); 407 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 408 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 409 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 410 mvaddstr(STATROW, STATCOL + 53, buf); 411 #define pgtokb(pg) ((pg) * cnt.v_page_size / 1024) 412 putint(pgtokb(total.t_arm), MEMROW + 2, MEMCOL + 3, 6); 413 putint(pgtokb(total.t_armshr), MEMROW + 2, MEMCOL + 9, 6); 414 putint(pgtokb(total.t_avm), MEMROW + 2, MEMCOL + 15, 7); 415 putint(pgtokb(total.t_avmshr), MEMROW + 2, MEMCOL + 22, 7); 416 putint(pgtokb(total.t_rm), MEMROW + 3, MEMCOL + 3, 6); 417 putint(pgtokb(total.t_rmshr), MEMROW + 3, MEMCOL + 9, 6); 418 putint(pgtokb(total.t_vm), MEMROW + 3, MEMCOL + 15, 7); 419 putint(pgtokb(total.t_vmshr), MEMROW + 3, MEMCOL + 22, 7); 420 putint(pgtokb(total.t_free), MEMROW + 2, MEMCOL + 29, 6); 421 putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 422 putint(total.t_pw, PROCSROW + 1, PROCSCOL + 6, 3); 423 putint(total.t_dw, PROCSROW + 1, PROCSCOL + 9, 3); 424 putint(total.t_sl, PROCSROW + 1, PROCSCOL + 12, 3); 425 putint(total.t_sw, PROCSROW + 1, PROCSCOL + 15, 3); 426 PUTRATE(Cnt.v_cow_faults, VMSTATROW + 0, VMSTATCOL + 3, 6); 427 PUTRATE(Cnt.v_lookups, VMSTATROW + 1, VMSTATCOL + 3, 6); 428 PUTRATE(Cnt.v_hits, VMSTATROW + 2, VMSTATCOL + 3, 6); 429 PUTRATE(Cnt.v_zfod, VMSTATROW + 3, VMSTATCOL + 4, 5); 430 PUTRATE(Cnt.v_nzfod, VMSTATROW + 4, VMSTATCOL + 3, 6); 431 putfloat(cnt.v_nzfod == 0 ? 0.0 : (100.0 * cnt.v_zfod / cnt.v_nzfod), 432 VMSTATROW + 5, VMSTATCOL + 2, 7, 2, 1); 433 putint(pgtokb(cnt.v_kernel_pages), VMSTATROW + 6, VMSTATCOL, 9); 434 putint(pgtokb(cnt.v_wire_count), VMSTATROW + 7, VMSTATCOL, 9); 435 putint(pgtokb(cnt.v_active_count), VMSTATROW + 8, VMSTATCOL, 9); 436 putint(pgtokb(cnt.v_inactive_count), VMSTATROW + 9, VMSTATCOL, 9); 437 putint(pgtokb(cnt.v_free_count), VMSTATROW + 10, VMSTATCOL, 9); 438 PUTRATE(Cnt.v_dfree, VMSTATROW + 11, VMSTATCOL, 9); 439 PUTRATE(Cnt.v_pfree, VMSTATROW + 12, VMSTATCOL, 9); 440 PUTRATE(Cnt.v_reactivated, VMSTATROW + 13, VMSTATCOL, 9); 441 PUTRATE(Cnt.v_scan, VMSTATROW + 14, VMSTATCOL, 9); 442 PUTRATE(Cnt.v_rev, VMSTATROW + 15, VMSTATCOL, 9); 443 if (LINES - 1 > VMSTATROW + 16) 444 PUTRATE(Cnt.v_intrans, VMSTATROW + 16, VMSTATCOL, 9); 445 PUTRATE(Cnt.v_pageins, PAGEROW + 2, PAGECOL + 5, 5); 446 PUTRATE(Cnt.v_pageouts, PAGEROW + 2, PAGECOL + 10, 5); 447 PUTRATE(Cnt.v_swpin, PAGEROW + 2, PAGECOL + 15, 5); /* - */ 448 PUTRATE(Cnt.v_swpout, PAGEROW + 2, PAGECOL + 20, 5); /* - */ 449 PUTRATE(Cnt.v_pgpgin, PAGEROW + 3, PAGECOL + 5, 5); /* ? */ 450 PUTRATE(Cnt.v_pgpgout, PAGEROW + 3, PAGECOL + 10, 5); /* ? */ 451 PUTRATE(Cnt.v_pswpin, PAGEROW + 3, PAGECOL + 15, 5); /* - */ 452 PUTRATE(Cnt.v_pswpout, PAGEROW + 3, PAGECOL + 20, 5); /* - */ 453 PUTRATE(Cnt.v_swtch, GENSTATROW + 1, GENSTATCOL, 5); 454 PUTRATE(Cnt.v_trap, GENSTATROW + 1, GENSTATCOL + 5, 5); 455 PUTRATE(Cnt.v_syscall, GENSTATROW + 1, GENSTATCOL + 10, 5); 456 PUTRATE(Cnt.v_intr, GENSTATROW + 1, GENSTATCOL + 15, 5); 457 PUTRATE(Cnt.v_soft, GENSTATROW + 1, GENSTATCOL + 20, 5); 458 PUTRATE(Cnt.v_faults, GENSTATROW + 1, GENSTATCOL + 25, 5); 459 mvprintw(DISKROW, DISKCOL + 5, " "); 460 for (i = 0, c = 0; i < dk_ndrive && c < MAXDRIVES; i++) 461 if (dk_select[i]) { 462 mvprintw(DISKROW, DISKCOL + 5 + 5 * c, 463 " %3.3s", dr_name[i]); 464 dinfo(i, ++c); 465 } 466 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 467 putint(nchtotal.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9); 468 #define nz(x) ((x) ? (x) : 1) 469 putfloat(nchtotal.ncs_goodhits * 100.0 / nz(s.nchcount), 470 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 471 putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 472 putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), 473 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 474 #undef nz 475 } 476 477 int 478 cmdkre(cmd, args) 479 char *cmd, *args; 480 { 481 482 if (prefix(cmd, "run")) { 483 copyinfo(&s2, &s1); 484 state = RUN; 485 return (1); 486 } 487 if (prefix(cmd, "boot")) { 488 state = BOOT; 489 copyinfo(&z, &s1); 490 return (1); 491 } 492 if (prefix(cmd, "time")) { 493 state = TIME; 494 return (1); 495 } 496 if (prefix(cmd, "zero")) { 497 if (state == RUN) 498 getinfo(&s1, RUN); 499 return (1); 500 } 501 return (dkcmd(cmd, args)); 502 } 503 504 /* calculate number of users on the system */ 505 static int 506 ucount() 507 { 508 register int nusers = 0; 509 510 if (ut < 0) 511 return (0); 512 while (read(ut, &utmp, sizeof(utmp))) 513 if (utmp.ut_name[0] != '\0') 514 nusers++; 515 516 lseek(ut, 0L, L_SET); 517 return (nusers); 518 } 519 520 static float 521 cputime(indx) 522 int indx; 523 { 524 double t; 525 register int i; 526 527 t = 0; 528 for (i = 0; i < CPUSTATES; i++) 529 t += s.time[i]; 530 if (t == 0.0) 531 t = 1.0; 532 return (s.time[indx] * 100.0 / t); 533 } 534 535 static void 536 putint(n, l, c, w) 537 int n, l, c, w; 538 { 539 char b[128]; 540 541 move(l, c); 542 if (n == 0) { 543 while (w-- > 0) 544 addch(' '); 545 return; 546 } 547 sprintf(b, "%*d", w, n); 548 if (strlen(b) > w) { 549 while (w-- > 0) 550 addch('*'); 551 return; 552 } 553 addstr(b); 554 } 555 556 static void 557 putfloat(f, l, c, w, d, nz) 558 double f; 559 int l, c, w, d, nz; 560 { 561 char b[128]; 562 563 move(l, c); 564 if (nz && f == 0.0) { 565 while (--w >= 0) 566 addch(' '); 567 return; 568 } 569 sprintf(b, "%*.*f", w, d, f); 570 if (strlen(b) > w) { 571 while (--w >= 0) 572 addch('*'); 573 return; 574 } 575 addstr(b); 576 } 577 578 static void 579 getinfo(s, st) 580 struct Info *s; 581 enum state st; 582 { 583 int mib[2], size; 584 extern int errno; 585 586 NREAD(X_CPTIME, s->time, sizeof s->time); 587 NREAD(X_CNT, &s->Cnt, sizeof s->Cnt); 588 NREAD(X_DK_BUSY, &s->dk_busy, LONG); 589 NREAD(X_DK_TIME, s->dk_time, dk_ndrive * LONG); 590 NREAD(X_DK_XFER, s->dk_xfer, dk_ndrive * LONG); 591 NREAD(X_DK_WDS, s->dk_wds, dk_ndrive * LONG); 592 NREAD(X_DK_SEEK, s->dk_seek, dk_ndrive * LONG); 593 NREAD(X_NCHSTATS, &s->nchstats, sizeof s->nchstats); 594 NREAD(X_INTRCNT, s->intrcnt, nintr * LONG); 595 size = sizeof(s->Total); 596 mib[0] = CTL_VM; 597 mib[1] = VM_METER; 598 if (sysctl(mib, 2, &s->Total, &size, NULL, 0) < 0) { 599 error("Can't get kernel info: %s\n", strerror(errno)); 600 bzero(&s->Total, sizeof(s->Total)); 601 } 602 } 603 604 static void 605 allocinfo(s) 606 struct Info *s; 607 { 608 609 s->intrcnt = (long *) malloc(nintr * sizeof(long)); 610 if (s->intrcnt == NULL) { 611 fprintf(stderr, "systat: out of memory\n"); 612 exit(2); 613 } 614 } 615 616 static void 617 copyinfo(from, to) 618 register struct Info *from, *to; 619 { 620 long *time, *wds, *seek, *xfer; 621 long *intrcnt; 622 623 /* 624 * time, wds, seek, and xfer are malloc'd so we have to 625 * save the pointers before the structure copy and then 626 * copy by hand. 627 */ 628 time = to->dk_time; wds = to->dk_wds; seek = to->dk_seek; 629 xfer = to->dk_xfer; intrcnt = to->intrcnt; 630 *to = *from; 631 bcopy(from->dk_time, to->dk_time = time, dk_ndrive * sizeof (long)); 632 bcopy(from->dk_wds, to->dk_wds = wds, dk_ndrive * sizeof (long)); 633 bcopy(from->dk_seek, to->dk_seek = seek, dk_ndrive * sizeof (long)); 634 bcopy(from->dk_xfer, to->dk_xfer = xfer, dk_ndrive * sizeof (long)); 635 bcopy(from->intrcnt, to->intrcnt = intrcnt, nintr * sizeof (int)); 636 } 637 638 static void 639 dinfo(dn, c) 640 int dn, c; 641 { 642 double words, atime, itime, xtime; 643 644 c = DISKCOL + c * 5; 645 atime = s.dk_time[dn]; 646 atime /= hertz; 647 words = s.dk_wds[dn]*32.0; /* number of words transferred */ 648 xtime = dk_mspw[dn]*words; /* transfer time */ 649 itime = atime - xtime; /* time not transferring */ 650 if (xtime < 0) 651 itime += xtime, xtime = 0; 652 if (itime < 0) 653 xtime += itime, itime = 0; 654 putint((int)((float)s.dk_seek[dn]/etime+0.5), DISKROW + 1, c, 5); 655 putint((int)((float)s.dk_xfer[dn]/etime+0.5), DISKROW + 2, c, 5); 656 putint((int)(words/etime/512.0 + 0.5), DISKROW + 3, c, 5); 657 if (s.dk_seek[dn]) 658 putfloat(itime*1000.0/s.dk_seek[dn], DISKROW + 4, c, 5, 1, 1); 659 else 660 putint(0, DISKROW + 4, c, 5); 661 } 662