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 35 static 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/proc.h> 48 #include <sys/uio.h> 49 #include <sys/namei.h> 50 #include <sys/sysctl.h> 51 #include <sys/vmmeter.h> 52 53 #include <vm/vm_param.h> 54 55 #include <signal.h> 56 #include <nlist.h> 57 #include <ctype.h> 58 #include <utmp.h> 59 #include <paths.h> 60 #include <string.h> 61 #include <stdlib.h> 62 #include <time.h> 63 #include <unistd.h> 64 #include "systat.h" 65 #include "extern.h" 66 67 static struct Info { 68 long time[CPUSTATES]; 69 struct vmmeter Cnt; 70 struct vmtotal Total; 71 long *dk_time; 72 long *dk_wds; 73 long *dk_seek; 74 long *dk_xfer; 75 int dk_busy; 76 struct nchstats nchstats; 77 long nchcount; 78 long *intrcnt; 79 int bufspace; 80 } s, s1, s2, z; 81 82 #define cnt s.Cnt 83 #define oldcnt s1.Cnt 84 #define total s.Total 85 #define nchtotal s.nchstats 86 #define oldnchtotal s1.nchstats 87 88 static enum state { BOOT, TIME, RUN } state = TIME; 89 90 static void allocinfo __P((struct Info *)); 91 static void copyinfo __P((struct Info *, struct Info *)); 92 static float cputime __P((int)); 93 static void dinfo __P((int, int)); 94 static void getinfo __P((struct Info *, enum state)); 95 static void putint __P((int, int, int, int)); 96 static void putfloat __P((double, int, int, int, int, int)); 97 static int ucount __P((void)); 98 99 static int ut; 100 static char buf[26]; 101 static time_t t; 102 static double etime; 103 static int nintr; 104 static long *intrloc; 105 static char **intrname; 106 static int nextintsrow; 107 108 struct utmp utmp; 109 110 111 WINDOW * 112 openkre() 113 { 114 115 ut = open(_PATH_UTMP, O_RDONLY); 116 if (ut < 0) 117 error("No utmp"); 118 return (stdscr); 119 } 120 121 void 122 closekre(w) 123 WINDOW *w; 124 { 125 126 (void) close(ut); 127 if (w == NULL) 128 return; 129 wclear(w); 130 wrefresh(w); 131 } 132 133 134 static struct nlist namelist[] = { 135 #define X_CPTIME 0 136 { "_cp_time" }, 137 #define X_CNT 1 138 { "_cnt" }, 139 #define X_BUFFERSPACE 2 140 { "_bufspace" }, 141 #define X_DK_BUSY 3 142 { "_dk_busy" }, 143 #define X_DK_TIME 4 144 { "_dk_time" }, 145 #define X_DK_XFER 5 146 { "_dk_xfer" }, 147 #define X_DK_WDS 6 148 { "_dk_wds" }, 149 #define X_DK_SEEK 7 150 { "_dk_seek" }, 151 #define X_NCHSTATS 8 152 { "_nchstats" }, 153 #define X_INTRNAMES 9 154 { "_intrnames" }, 155 #define X_EINTRNAMES 10 156 { "_eintrnames" }, 157 #define X_INTRCNT 11 158 { "_intrcnt" }, 159 #define X_EINTRCNT 12 160 { "_eintrcnt" }, 161 { "" }, 162 }; 163 164 /* 165 * These constants define where the major pieces are laid out 166 */ 167 #define STATROW 0 /* uses 1 row and 68 cols */ 168 #define STATCOL 2 169 #define MEMROW 2 /* uses 4 rows and 31 cols */ 170 #define MEMCOL 0 171 #define PAGEROW 2 /* uses 4 rows and 26 cols */ 172 #define PAGECOL 36 173 #define INTSROW 2 /* uses all rows to bottom and 17 cols */ 174 #define INTSCOL 61 175 #define PROCSROW 7 /* uses 2 rows and 20 cols */ 176 #define PROCSCOL 0 177 #define GENSTATROW 7 /* uses 2 rows and 30 cols */ 178 #define GENSTATCOL 20 179 #define VMSTATROW 6 /* uses 17 rows and 12 cols */ 180 #define VMSTATCOL 48 181 #define GRAPHROW 10 /* uses 3 rows and 51 cols */ 182 #define GRAPHCOL 0 183 #define NAMEIROW 14 /* uses 3 rows and 38 cols */ 184 #define NAMEICOL 0 185 #define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ 186 #define DISKCOL 0 187 188 #define DRIVESPACE 9 /* max # for space */ 189 190 #if DK_NDRIVE > DRIVESPACE 191 #define MAXDRIVES DRIVESPACE /* max # to display */ 192 #else 193 #define MAXDRIVES DK_NDRIVE /* max # to display */ 194 #endif 195 196 int 197 initkre() 198 { 199 char *intrnamebuf, *cp; 200 int i; 201 static int once = 0; 202 203 if (namelist[0].n_type == 0) { 204 if (kvm_nlist(kd, namelist)) { 205 nlisterr(namelist); 206 return(0); 207 } 208 if (namelist[0].n_type == 0) { 209 error("No namelist"); 210 return(0); 211 } 212 } 213 if (! dkinit()) 214 return(0); 215 if (dk_ndrive && !once) { 216 #define allocate(e, t) \ 217 s./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 218 s1./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 219 s2./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 220 z./**/e = (t *)calloc(dk_ndrive, sizeof (t)); 221 allocate(dk_time, long); 222 allocate(dk_wds, long); 223 allocate(dk_seek, long); 224 allocate(dk_xfer, long); 225 once = 1; 226 #undef allocate 227 } 228 if (nintr == 0) { 229 nintr = (namelist[X_EINTRCNT].n_value - 230 namelist[X_INTRCNT].n_value) / sizeof (long); 231 intrloc = calloc(nintr, sizeof (long)); 232 intrname = calloc(nintr, sizeof (long)); 233 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 234 namelist[X_INTRNAMES].n_value); 235 if (intrnamebuf == 0 || intrname == 0 || intrloc == 0) { 236 error("Out of memory\n"); 237 if (intrnamebuf) 238 free(intrnamebuf); 239 if (intrname) 240 free(intrname); 241 if (intrloc) 242 free(intrloc); 243 nintr = 0; 244 return(0); 245 } 246 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 247 NVAL(X_INTRNAMES)); 248 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 249 intrname[i] = cp; 250 cp += strlen(cp) + 1; 251 } 252 nextintsrow = INTSROW + 2; 253 allocinfo(&s); 254 allocinfo(&s1); 255 allocinfo(&s2); 256 allocinfo(&z); 257 } 258 getinfo(&s2, RUN); 259 copyinfo(&s2, &s1); 260 return(1); 261 } 262 263 void 264 fetchkre() 265 { 266 time_t now; 267 struct tm *tp; 268 269 time(&now); 270 tp = localtime(&now); 271 (void) strftime(buf, sizeof(buf), "%c", tp); 272 buf[16] = '\0'; 273 getinfo(&s, state); 274 } 275 276 void 277 labelkre() 278 { 279 register int i, j; 280 281 clear(); 282 mvprintw(STATROW, STATCOL + 4, "users Load"); 283 mvprintw(MEMROW, MEMCOL, "Mem:KB REAL VIRTUAL"); 284 mvprintw(MEMROW + 1, MEMCOL, " Tot Share Tot Share"); 285 mvprintw(MEMROW + 2, MEMCOL, "Act"); 286 mvprintw(MEMROW + 3, MEMCOL, "All"); 287 288 mvprintw(MEMROW + 1, MEMCOL + 31, "Free"); 289 290 mvprintw(PAGEROW, PAGECOL, " VN PAGER SWAP PAGER "); 291 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 292 mvprintw(PAGEROW + 2, PAGECOL, "count"); 293 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 294 295 mvprintw(INTSROW, INTSCOL + 3, " Interrupts"); 296 mvprintw(INTSROW + 1, INTSCOL + 9, "total"); 297 298 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "cow"); 299 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "zfod"); 300 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "wire"); 301 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "act"); 302 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "inact"); 303 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "cache"); 304 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "free"); 305 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "daefr"); 306 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "prcfr"); 307 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "react"); 308 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "pdwake"); 309 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "pdpgs"); 310 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "intrn"); 311 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "buf"); 312 313 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 314 315 mvprintw(GRAPHROW, GRAPHCOL, 316 " . %%Sys . %%Intr . %%User . %%Nice . %%Idle"); 317 mvprintw(PROCSROW, PROCSCOL, "Proc:r p d s w"); 318 mvprintw(GRAPHROW + 1, GRAPHCOL, 319 "| | | | | | | | | | |"); 320 321 mvprintw(NAMEIROW, NAMEICOL, "Namei Name-cache Dir-cache"); 322 mvprintw(NAMEIROW + 1, NAMEICOL, 323 " Calls hits %% hits %%"); 324 mvprintw(DISKROW, DISKCOL, "Discs"); 325 mvprintw(DISKROW + 1, DISKCOL, "seeks"); 326 mvprintw(DISKROW + 2, DISKCOL, "xfers"); 327 mvprintw(DISKROW + 3, DISKCOL, " blks"); 328 mvprintw(DISKROW + 4, DISKCOL, " msps"); 329 j = 0; 330 for (i = 0; i < dk_ndrive && j < MAXDRIVES; i++) 331 if (dk_select[i]) { 332 mvprintw(DISKROW, DISKCOL + 5 + 5 * j, 333 " %4.4s", dr_name[j]); 334 j++; 335 } 336 for (i = 0; i < nintr; i++) { 337 if (intrloc[i] == 0) 338 continue; 339 mvprintw(intrloc[i], INTSCOL + 9, "%-10.10s", intrname[i]); 340 } 341 } 342 343 #define X(fld) {t=s.fld[i]; s.fld[i]-=s1.fld[i]; if(state==TIME) s1.fld[i]=t;} 344 #define Y(fld) {t = s.fld; s.fld -= s1.fld; if(state == TIME) s1.fld = t;} 345 #define Z(fld) {t = s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld; \ 346 if(state == TIME) s1.nchstats.fld = t;} 347 #define PUTRATE(fld, l, c, w) \ 348 Y(fld); \ 349 putint((int)((float)s.fld/etime + 0.5), l, c, w) 350 #define MAXFAIL 5 351 352 static char cpuchar[CPUSTATES] = { '=' , '+', '>', '-', ' ' }; 353 static char cpuorder[CPUSTATES] = { CP_SYS, CP_INTR, CP_USER, CP_NICE, 354 CP_IDLE }; 355 356 void 357 showkre() 358 { 359 float f1, f2; 360 int psiz, inttotal; 361 int i, l, c; 362 static int failcnt = 0; 363 364 for (i = 0; i < dk_ndrive; i++) { 365 X(dk_xfer); X(dk_seek); X(dk_wds); X(dk_time); 366 } 367 etime = 0; 368 for(i = 0; i < CPUSTATES; i++) { 369 X(time); 370 etime += s.time[i]; 371 } 372 if (etime < 5.0) { /* < 5 ticks - ignore this trash */ 373 if (failcnt++ >= MAXFAIL) { 374 clear(); 375 mvprintw(2, 10, "The alternate system clock has died!"); 376 mvprintw(3, 10, "Reverting to ``pigs'' display."); 377 move(CMDLINE, 0); 378 refresh(); 379 failcnt = 0; 380 sleep(5); 381 command("pigs"); 382 } 383 return; 384 } 385 failcnt = 0; 386 etime /= hertz; 387 inttotal = 0; 388 for (i = 0; i < nintr; i++) { 389 if (s.intrcnt[i] == 0) 390 continue; 391 if (intrloc[i] == 0) { 392 if (nextintsrow == LINES) 393 continue; 394 intrloc[i] = nextintsrow++; 395 mvprintw(intrloc[i], INTSCOL + 9, "%-10.10s", 396 intrname[i]); 397 } 398 X(intrcnt); 399 l = (int)((float)s.intrcnt[i]/etime + 0.5); 400 inttotal += l; 401 putint(l, intrloc[i], INTSCOL + 2, 6); 402 } 403 putint(inttotal, INTSROW + 1, INTSCOL + 2, 6); 404 Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss); 405 Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); Z(ncs_neghits); 406 s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits + 407 nchtotal.ncs_miss + nchtotal.ncs_long + nchtotal.ncs_neghits; 408 if (state == TIME) 409 s1.nchcount = s.nchcount; 410 411 psiz = 0; 412 f2 = 0.0; 413 for (c = 0; c < CPUSTATES; c++) { 414 i = cpuorder[c]; 415 f1 = cputime(i); 416 f2 += f1; 417 l = (int) ((f2 + 1.0) / 2.0) - psiz; 418 if (f1 > 99.9) 419 f1 = 99.9; /* no room to display 100.0 */ 420 putfloat(f1, GRAPHROW, GRAPHCOL + 10 * c, 4, 1, 0); 421 move(GRAPHROW + 2, psiz); 422 psiz += l; 423 while (l-- > 0) 424 addch(cpuchar[c]); 425 } 426 427 putint(ucount(), STATROW, STATCOL, 3); 428 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 429 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 430 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 431 mvaddstr(STATROW, STATCOL + 53, buf); 432 #define pgtokb(pg) ((pg) * cnt.v_page_size / 1024) 433 putint(pgtokb(total.t_arm), MEMROW + 2, MEMCOL + 3, 6); 434 putint(pgtokb(total.t_armshr), MEMROW + 2, MEMCOL + 9, 6); 435 putint(pgtokb(total.t_avm), MEMROW + 2, MEMCOL + 15, 7); 436 putint(pgtokb(total.t_avmshr), MEMROW + 2, MEMCOL + 22, 7); 437 putint(pgtokb(total.t_rm), MEMROW + 3, MEMCOL + 3, 6); 438 putint(pgtokb(total.t_rmshr), MEMROW + 3, MEMCOL + 9, 6); 439 putint(pgtokb(total.t_vm), MEMROW + 3, MEMCOL + 15, 7); 440 putint(pgtokb(total.t_vmshr), MEMROW + 3, MEMCOL + 22, 7); 441 putint(pgtokb(total.t_free), MEMROW + 2, MEMCOL + 29, 6); 442 putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 443 putint(total.t_pw, PROCSROW + 1, PROCSCOL + 6, 3); 444 putint(total.t_dw, PROCSROW + 1, PROCSCOL + 9, 3); 445 putint(total.t_sl, PROCSROW + 1, PROCSCOL + 12, 3); 446 putint(total.t_sw, PROCSROW + 1, PROCSCOL + 15, 3); 447 PUTRATE(Cnt.v_cow_faults, VMSTATROW + 0, VMSTATCOL + 3, 6); 448 PUTRATE(Cnt.v_zfod, VMSTATROW + 1, VMSTATCOL + 4, 5); 449 putint(pgtokb(cnt.v_wire_count), VMSTATROW + 2, VMSTATCOL, 9); 450 putint(pgtokb(cnt.v_active_count), VMSTATROW + 3, VMSTATCOL, 9); 451 putint(pgtokb(cnt.v_inactive_count), VMSTATROW + 4, VMSTATCOL, 9); 452 putint(pgtokb(cnt.v_cache_count), VMSTATROW + 5, VMSTATCOL, 9); 453 putint(pgtokb(cnt.v_free_count), VMSTATROW + 6, VMSTATCOL, 9); 454 PUTRATE(Cnt.v_dfree, VMSTATROW + 7, VMSTATCOL, 9); 455 PUTRATE(Cnt.v_pfree, VMSTATROW + 8, VMSTATCOL, 9); 456 PUTRATE(Cnt.v_reactivated, VMSTATROW + 9, VMSTATCOL, 9); 457 PUTRATE(Cnt.v_pdwakeups, VMSTATROW + 10, VMSTATCOL, 9); 458 PUTRATE(Cnt.v_pdpages, VMSTATROW + 11, VMSTATCOL, 9); 459 PUTRATE(Cnt.v_intrans, VMSTATROW + 12, VMSTATCOL, 9); 460 putint(s.bufspace/1024, VMSTATROW + 13, VMSTATCOL, 9); 461 PUTRATE(Cnt.v_vnodein, PAGEROW + 2, PAGECOL + 5, 5); 462 PUTRATE(Cnt.v_vnodeout, PAGEROW + 2, PAGECOL + 10, 5); 463 PUTRATE(Cnt.v_swapin, PAGEROW + 2, PAGECOL + 17, 5); 464 PUTRATE(Cnt.v_swapout, PAGEROW + 2, PAGECOL + 22, 5); 465 PUTRATE(Cnt.v_vnodepgsin, PAGEROW + 3, PAGECOL + 5, 5); 466 PUTRATE(Cnt.v_vnodepgsout, PAGEROW + 3, PAGECOL + 10, 5); 467 PUTRATE(Cnt.v_swappgsin, PAGEROW + 3, PAGECOL + 17, 5); 468 PUTRATE(Cnt.v_swappgsout, PAGEROW + 3, PAGECOL + 22, 5); 469 PUTRATE(Cnt.v_swtch, GENSTATROW + 1, GENSTATCOL, 5); 470 PUTRATE(Cnt.v_trap, GENSTATROW + 1, GENSTATCOL + 5, 5); 471 PUTRATE(Cnt.v_syscall, GENSTATROW + 1, GENSTATCOL + 10, 5); 472 PUTRATE(Cnt.v_intr, GENSTATROW + 1, GENSTATCOL + 15, 5); 473 PUTRATE(Cnt.v_soft, GENSTATROW + 1, GENSTATCOL + 20, 5); 474 PUTRATE(Cnt.v_vm_faults, GENSTATROW + 1, GENSTATCOL + 25, 5); 475 mvprintw(DISKROW, DISKCOL + 5, " "); 476 for (i = 0, c = 0; i < dk_ndrive && c < MAXDRIVES; i++) 477 if (dk_select[i]) { 478 mvprintw(DISKROW, DISKCOL + 5 + 5 * c, 479 " %4.4s", dr_name[i]); 480 dinfo(i, ++c); 481 } 482 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 483 putint((nchtotal.ncs_goodhits + nchtotal.ncs_neghits), 484 NAMEIROW + 2, NAMEICOL + 9, 9); 485 #define nz(x) ((x) ? (x) : 1) 486 putfloat((nchtotal.ncs_goodhits+nchtotal.ncs_neghits) * 487 100.0 / nz(s.nchcount), 488 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 489 putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 490 putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), 491 NAMEIROW + 2, NAMEICOL + 33, 4, 0, 1); 492 #undef nz 493 } 494 495 int 496 cmdkre(cmd, args) 497 char *cmd, *args; 498 { 499 500 if (prefix(cmd, "run")) { 501 copyinfo(&s2, &s1); 502 state = RUN; 503 return (1); 504 } 505 if (prefix(cmd, "boot")) { 506 state = BOOT; 507 copyinfo(&z, &s1); 508 return (1); 509 } 510 if (prefix(cmd, "time")) { 511 state = TIME; 512 return (1); 513 } 514 if (prefix(cmd, "zero")) { 515 if (state == RUN) 516 getinfo(&s1, RUN); 517 return (1); 518 } 519 return (dkcmd(cmd, args)); 520 } 521 522 /* calculate number of users on the system */ 523 static int 524 ucount() 525 { 526 register int nusers = 0; 527 528 if (ut < 0) 529 return (0); 530 while (read(ut, &utmp, sizeof(utmp))) 531 if (utmp.ut_name[0] != '\0') 532 nusers++; 533 534 lseek(ut, 0L, L_SET); 535 return (nusers); 536 } 537 538 static float 539 cputime(indx) 540 int indx; 541 { 542 double t; 543 register int i; 544 545 t = 0; 546 for (i = 0; i < CPUSTATES; i++) 547 t += s.time[i]; 548 if (t == 0.0) 549 t = 1.0; 550 return (s.time[indx] * 100.0 / t); 551 } 552 553 static void 554 putint(n, l, c, w) 555 int n, l, c, w; 556 { 557 char b[128]; 558 559 move(l, c); 560 if (n == 0) { 561 while (w-- > 0) 562 addch(' '); 563 return; 564 } 565 sprintf(b, "%*d", w, n); 566 if (strlen(b) > w) { 567 while (w-- > 0) 568 addch('*'); 569 return; 570 } 571 addstr(b); 572 } 573 574 static void 575 putfloat(f, l, c, w, d, nz) 576 double f; 577 int l, c, w, d, nz; 578 { 579 char b[128]; 580 581 move(l, c); 582 if (nz && f == 0.0) { 583 while (--w >= 0) 584 addch(' '); 585 return; 586 } 587 sprintf(b, "%*.*f", w, d, f); 588 if (strlen(b) > w) { 589 while (--w >= 0) 590 addch('*'); 591 return; 592 } 593 addstr(b); 594 } 595 596 static void 597 getinfo(s, st) 598 struct Info *s; 599 enum state st; 600 { 601 int mib[2], size; 602 extern int errno; 603 604 NREAD(X_CPTIME, s->time, sizeof s->time); 605 NREAD(X_CNT, &s->Cnt, sizeof s->Cnt); 606 NREAD(X_BUFFERSPACE, &s->bufspace, LONG); 607 NREAD(X_DK_BUSY, &s->dk_busy, LONG); 608 NREAD(X_DK_TIME, s->dk_time, dk_ndrive * LONG); 609 NREAD(X_DK_XFER, s->dk_xfer, dk_ndrive * LONG); 610 NREAD(X_DK_WDS, s->dk_wds, dk_ndrive * LONG); 611 NREAD(X_DK_SEEK, s->dk_seek, dk_ndrive * LONG); 612 NREAD(X_NCHSTATS, &s->nchstats, sizeof s->nchstats); 613 NREAD(X_INTRCNT, s->intrcnt, nintr * LONG); 614 size = sizeof(s->Total); 615 mib[0] = CTL_VM; 616 mib[1] = VM_METER; 617 if (sysctl(mib, 2, &s->Total, &size, NULL, 0) < 0) { 618 error("Can't get kernel info: %s\n", strerror(errno)); 619 bzero(&s->Total, sizeof(s->Total)); 620 } 621 } 622 623 static void 624 allocinfo(s) 625 struct Info *s; 626 { 627 628 s->intrcnt = (long *) malloc(nintr * sizeof(long)); 629 if (s->intrcnt == NULL) { 630 fprintf(stderr, "systat: out of memory\n"); 631 exit(2); 632 } 633 } 634 635 static void 636 copyinfo(from, to) 637 register struct Info *from, *to; 638 { 639 long *time, *wds, *seek, *xfer; 640 long *intrcnt; 641 642 /* 643 * time, wds, seek, and xfer are malloc'd so we have to 644 * save the pointers before the structure copy and then 645 * copy by hand. 646 */ 647 time = to->dk_time; wds = to->dk_wds; seek = to->dk_seek; 648 xfer = to->dk_xfer; intrcnt = to->intrcnt; 649 *to = *from; 650 bcopy(from->dk_time, to->dk_time = time, dk_ndrive * sizeof (long)); 651 bcopy(from->dk_wds, to->dk_wds = wds, dk_ndrive * sizeof (long)); 652 bcopy(from->dk_seek, to->dk_seek = seek, dk_ndrive * sizeof (long)); 653 bcopy(from->dk_xfer, to->dk_xfer = xfer, dk_ndrive * sizeof (long)); 654 bcopy(from->intrcnt, to->intrcnt = intrcnt, nintr * sizeof (int)); 655 } 656 657 static void 658 dinfo(dn, c) 659 int dn, c; 660 { 661 double words, atime, itime, xtime; 662 663 c = DISKCOL + c * 5; 664 atime = s.dk_time[dn]; 665 atime /= hertz; 666 words = s.dk_wds[dn]*32.0; /* number of words transferred */ 667 xtime = dk_mspw[dn]*words; /* transfer time */ 668 itime = atime - xtime; /* time not transferring */ 669 if (xtime < 0) 670 itime += xtime, xtime = 0; 671 if (itime < 0) 672 xtime += itime, itime = 0; 673 putint((int)((float)s.dk_seek[dn]/etime+0.5), DISKROW + 1, c, 5); 674 putint((int)((float)s.dk_xfer[dn]/etime+0.5), DISKROW + 2, c, 5); 675 putint((int)(words/etime/512.0 + 0.5), DISKROW + 3, c, 5); 676 if (s.dk_seek[dn]) 677 putfloat(itime*1000.0/s.dk_seek[dn], DISKROW + 4, c, 5, 1, 1); 678 else 679 putint(0, DISKROW + 4, c, 5); 680 } 681