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/user.h> 48 #include <sys/proc.h> 49 #include <sys/namei.h> 50 #include <sys/sysctl.h> 51 #include <vm/vm.h> 52 53 #include <signal.h> 54 #include <nlist.h> 55 #include <ctype.h> 56 #include <utmp.h> 57 #include <paths.h> 58 #include <string.h> 59 #include <stdlib.h> 60 #include <unistd.h> 61 #include "systat.h" 62 #include "extern.h" 63 64 static struct Info { 65 long time[CPUSTATES]; 66 struct vmmeter Cnt; 67 struct vmtotal Total; 68 long *dk_time; 69 long *dk_wds; 70 long *dk_seek; 71 long *dk_xfer; 72 int dk_busy; 73 struct nchstats nchstats; 74 long nchcount; 75 long *intrcnt; 76 int bufspace; 77 } s, s1, s2, z; 78 79 #define cnt s.Cnt 80 #define oldcnt s1.Cnt 81 #define total s.Total 82 #define nchtotal s.nchstats 83 #define oldnchtotal s1.nchstats 84 85 static enum state { BOOT, TIME, RUN } state = TIME; 86 87 static void allocinfo __P((struct Info *)); 88 static void copyinfo __P((struct Info *, struct Info *)); 89 static float cputime __P((int)); 90 static void dinfo __P((int, int)); 91 static void getinfo __P((struct Info *, enum state)); 92 static void putint __P((int, int, int, int)); 93 static void putfloat __P((double, int, int, int, int, int)); 94 static int ucount __P((void)); 95 96 static int ut; 97 static char buf[26]; 98 static time_t t; 99 static double etime; 100 static int nintr; 101 static long *intrloc; 102 static char **intrname; 103 static int nextintsrow; 104 105 struct utmp utmp; 106 107 108 WINDOW * 109 openkre() 110 { 111 112 ut = open(_PATH_UTMP, O_RDONLY); 113 if (ut < 0) 114 error("No utmp"); 115 return (stdscr); 116 } 117 118 void 119 closekre(w) 120 WINDOW *w; 121 { 122 123 (void) close(ut); 124 if (w == NULL) 125 return; 126 wclear(w); 127 wrefresh(w); 128 } 129 130 131 static struct nlist namelist[] = { 132 #define X_CPTIME 0 133 { "_cp_time" }, 134 #define X_CNT 1 135 { "_cnt" }, 136 #define X_TOTAL 2 137 { "_total" }, 138 #define X_DK_BUSY 3 139 { "_dk_busy" }, 140 #define X_DK_TIME 4 141 { "_dk_time" }, 142 #define X_DK_XFER 5 143 { "_dk_xfer" }, 144 #define X_DK_WDS 6 145 { "_dk_wds" }, 146 #define X_DK_SEEK 7 147 { "_dk_seek" }, 148 #define X_NCHSTATS 8 149 { "_nchstats" }, 150 #define X_INTRNAMES 9 151 { "_intrnames" }, 152 #define X_EINTRNAMES 10 153 { "_eintrnames" }, 154 #define X_INTRCNT 11 155 { "_intrcnt" }, 156 #define X_EINTRCNT 12 157 { "_eintrcnt" }, 158 #define X_BUFFERSPACE 13 159 { "_bufspace" }, 160 { "" }, 161 }; 162 163 /* 164 * These constants define where the major pieces are laid out 165 */ 166 #define STATROW 0 /* uses 1 row and 68 cols */ 167 #define STATCOL 2 168 #define MEMROW 2 /* uses 4 rows and 31 cols */ 169 #define MEMCOL 0 170 #define PAGEROW 2 /* uses 4 rows and 26 cols */ 171 #define PAGECOL 36 172 #define INTSROW 2 /* uses all rows to bottom and 17 cols */ 173 #define INTSCOL 61 174 #define PROCSROW 7 /* uses 2 rows and 20 cols */ 175 #define PROCSCOL 0 176 #define GENSTATROW 7 /* uses 2 rows and 30 cols */ 177 #define GENSTATCOL 20 178 #define VMSTATROW 6 /* uses 17 rows and 12 cols */ 179 #define VMSTATCOL 48 180 #define GRAPHROW 10 /* uses 3 rows and 51 cols */ 181 #define GRAPHCOL 0 182 #define NAMEIROW 14 /* uses 3 rows and 38 cols */ 183 #define NAMEICOL 0 184 #define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ 185 #define DISKCOL 0 186 187 #define DRIVESPACE 9 /* max # for space */ 188 189 #if DK_NDRIVE > DRIVESPACE 190 #define MAXDRIVES DRIVESPACE /* max # to display */ 191 #else 192 #define MAXDRIVES DK_NDRIVE /* max # to display */ 193 #endif 194 195 int 196 initkre() 197 { 198 char *intrnamebuf, *cp; 199 int i; 200 static int once = 0; 201 202 if (namelist[0].n_type == 0) { 203 if (kvm_nlist(kd, namelist)) { 204 nlisterr(namelist); 205 return(0); 206 } 207 if (namelist[0].n_type == 0) { 208 error("No namelist"); 209 return(0); 210 } 211 } 212 if (! dkinit()) 213 return(0); 214 if (dk_ndrive && !once) { 215 #define allocate(e, t) \ 216 s./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 217 s1./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 218 s2./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 219 z./**/e = (t *)calloc(dk_ndrive, sizeof (t)); 220 allocate(dk_time, long); 221 allocate(dk_wds, long); 222 allocate(dk_seek, long); 223 allocate(dk_xfer, long); 224 once = 1; 225 #undef allocate 226 } 227 if (nintr == 0) { 228 nintr = (namelist[X_EINTRCNT].n_value - 229 namelist[X_INTRCNT].n_value) / sizeof (long); 230 intrloc = calloc(nintr, sizeof (long)); 231 intrname = calloc(nintr, sizeof (long)); 232 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 233 namelist[X_INTRNAMES].n_value); 234 if (intrnamebuf == 0 || intrname == 0 || intrloc == 0) { 235 error("Out of memory\n"); 236 if (intrnamebuf) 237 free(intrnamebuf); 238 if (intrname) 239 free(intrname); 240 if (intrloc) 241 free(intrloc); 242 nintr = 0; 243 return(0); 244 } 245 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 246 NVAL(X_INTRNAMES)); 247 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 248 intrname[i] = cp; 249 cp += strlen(cp) + 1; 250 } 251 nextintsrow = INTSROW + 2; 252 allocinfo(&s); 253 allocinfo(&s1); 254 allocinfo(&s2); 255 allocinfo(&z); 256 } 257 getinfo(&s2, RUN); 258 copyinfo(&s2, &s1); 259 return(1); 260 } 261 262 void 263 fetchkre() 264 { 265 time_t now; 266 267 time(&now); 268 strcpy(buf, ctime(&now)); 269 buf[16] = '\0'; 270 getinfo(&s, state); 271 } 272 273 void 274 labelkre() 275 { 276 register int i, j; 277 278 clear(); 279 mvprintw(STATROW, STATCOL + 4, "users Load"); 280 mvprintw(MEMROW, MEMCOL, "Mem:KB REAL VIRTUAL"); 281 mvprintw(MEMROW + 1, MEMCOL, " Tot Share Tot Share"); 282 mvprintw(MEMROW + 2, MEMCOL, "Act"); 283 mvprintw(MEMROW + 3, MEMCOL, "All"); 284 285 mvprintw(MEMROW + 1, MEMCOL + 31, "Free"); 286 287 mvprintw(PAGEROW, PAGECOL, " VN PAGER SWAP PAGER "); 288 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 289 mvprintw(PAGEROW + 2, PAGECOL, "count"); 290 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 291 292 mvprintw(INTSROW, INTSCOL + 3, " Interrupts"); 293 mvprintw(INTSROW + 1, INTSCOL + 9, "total"); 294 295 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "cow"); 296 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "zfod"); 297 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "wire"); 298 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "act"); 299 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "inact"); 300 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "cache"); 301 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "free"); 302 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "daefr"); 303 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "prcfr"); 304 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "react"); 305 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "pdwake"); 306 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "pdpgs"); 307 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "intrn"); 308 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "buf"); 309 310 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 311 312 mvprintw(GRAPHROW, GRAPHCOL, 313 " . %%Sys . %%Intr . %%User . %%Nice . %%Idle"); 314 mvprintw(PROCSROW, PROCSCOL, "Proc:r p d s w"); 315 mvprintw(GRAPHROW + 1, GRAPHCOL, 316 "| | | | | | | | | | |"); 317 318 mvprintw(NAMEIROW, NAMEICOL, "Namei Name-cache Proc-cache"); 319 mvprintw(NAMEIROW + 1, NAMEICOL, 320 " Calls hits %% hits %%"); 321 mvprintw(DISKROW, DISKCOL, "Discs"); 322 mvprintw(DISKROW + 1, DISKCOL, "seeks"); 323 mvprintw(DISKROW + 2, DISKCOL, "xfers"); 324 mvprintw(DISKROW + 3, DISKCOL, " blks"); 325 mvprintw(DISKROW + 4, DISKCOL, " msps"); 326 j = 0; 327 for (i = 0; i < dk_ndrive && j < MAXDRIVES; i++) 328 if (dk_select[i]) { 329 mvprintw(DISKROW, DISKCOL + 5 + 5 * j, 330 " %3.3s", dr_name[j]); 331 j++; 332 } 333 for (i = 0; i < nintr; i++) { 334 if (intrloc[i] == 0) 335 continue; 336 mvprintw(intrloc[i], INTSCOL + 9, "%-10.10s", intrname[i]); 337 } 338 } 339 340 #define X(fld) {t=s.fld[i]; s.fld[i]-=s1.fld[i]; if(state==TIME) s1.fld[i]=t;} 341 #define Y(fld) {t = s.fld; s.fld -= s1.fld; if(state == TIME) s1.fld = t;} 342 #define Z(fld) {t = s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld; \ 343 if(state == TIME) s1.nchstats.fld = t;} 344 #define PUTRATE(fld, l, c, w) \ 345 Y(fld); \ 346 putint((int)((float)s.fld/etime + 0.5), l, c, w) 347 #define MAXFAIL 5 348 349 static char cpuchar[CPUSTATES] = { '=' , '+', '>', '-', ' ' }; 350 static char cpuorder[CPUSTATES] = { CP_SYS, CP_INTR, CP_USER, CP_NICE, 351 CP_IDLE }; 352 353 void 354 showkre() 355 { 356 float f1, f2; 357 int psiz, inttotal; 358 int i, l, c; 359 static int failcnt = 0; 360 361 for (i = 0; i < dk_ndrive; i++) { 362 X(dk_xfer); X(dk_seek); X(dk_wds); X(dk_time); 363 } 364 etime = 0; 365 for(i = 0; i < CPUSTATES; i++) { 366 X(time); 367 etime += s.time[i]; 368 } 369 if (etime < 5.0) { /* < 5 ticks - ignore this trash */ 370 if (failcnt++ >= MAXFAIL) { 371 clear(); 372 mvprintw(2, 10, "The alternate system clock has died!"); 373 mvprintw(3, 10, "Reverting to ``pigs'' display."); 374 move(CMDLINE, 0); 375 refresh(); 376 failcnt = 0; 377 sleep(5); 378 command("pigs"); 379 } 380 return; 381 } 382 failcnt = 0; 383 etime /= hertz; 384 inttotal = 0; 385 for (i = 0; i < nintr; i++) { 386 if (s.intrcnt[i] == 0) 387 continue; 388 if (intrloc[i] == 0) { 389 if (nextintsrow == LINES) 390 continue; 391 intrloc[i] = nextintsrow++; 392 mvprintw(intrloc[i], INTSCOL + 9, "%-10.10s", 393 intrname[i]); 394 } 395 X(intrcnt); 396 l = (int)((float)s.intrcnt[i]/etime + 0.5); 397 inttotal += l; 398 putint(l, intrloc[i], INTSCOL + 2, 6); 399 } 400 putint(inttotal, INTSROW + 1, INTSCOL + 2, 6); 401 Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss); 402 Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); Z(ncs_neghits); 403 s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits + 404 nchtotal.ncs_miss + nchtotal.ncs_long + nchtotal.ncs_neghits; 405 if (state == TIME) 406 s1.nchcount = s.nchcount; 407 408 psiz = 0; 409 f2 = 0.0; 410 for (c = 0; c < CPUSTATES; c++) { 411 i = cpuorder[c]; 412 f1 = cputime(i); 413 f2 += f1; 414 l = (int) ((f2 + 1.0) / 2.0) - psiz; 415 if (f1 > 99.9) 416 f1 = 99.9; /* no room to display 100.0 */ 417 putfloat(f1, GRAPHROW, GRAPHCOL + 10 * c, 4, 1, 0); 418 move(GRAPHROW + 2, psiz); 419 psiz += l; 420 while (l-- > 0) 421 addch(cpuchar[c]); 422 } 423 424 putint(ucount(), STATROW, STATCOL, 3); 425 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 426 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 427 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 428 mvaddstr(STATROW, STATCOL + 53, buf); 429 #define pgtokb(pg) ((pg) * cnt.v_page_size / 1024) 430 putint(pgtokb(total.t_arm), MEMROW + 2, MEMCOL + 3, 6); 431 putint(pgtokb(total.t_armshr), MEMROW + 2, MEMCOL + 9, 6); 432 putint(pgtokb(total.t_avm), MEMROW + 2, MEMCOL + 15, 7); 433 putint(pgtokb(total.t_avmshr), MEMROW + 2, MEMCOL + 22, 7); 434 putint(pgtokb(total.t_rm), MEMROW + 3, MEMCOL + 3, 6); 435 putint(pgtokb(total.t_rmshr), MEMROW + 3, MEMCOL + 9, 6); 436 putint(pgtokb(total.t_vm), MEMROW + 3, MEMCOL + 15, 7); 437 putint(pgtokb(total.t_vmshr), MEMROW + 3, MEMCOL + 22, 7); 438 putint(pgtokb(total.t_free), MEMROW + 2, MEMCOL + 29, 6); 439 putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 440 putint(total.t_pw, PROCSROW + 1, PROCSCOL + 6, 3); 441 putint(total.t_dw, PROCSROW + 1, PROCSCOL + 9, 3); 442 putint(total.t_sl, PROCSROW + 1, PROCSCOL + 12, 3); 443 putint(total.t_sw, PROCSROW + 1, PROCSCOL + 15, 3); 444 PUTRATE(Cnt.v_cow_faults, VMSTATROW + 0, VMSTATCOL + 3, 6); 445 PUTRATE(Cnt.v_zfod, VMSTATROW + 1, VMSTATCOL + 4, 5); 446 putint(pgtokb(cnt.v_wire_count), VMSTATROW + 2, VMSTATCOL, 9); 447 putint(pgtokb(cnt.v_active_count), VMSTATROW + 3, VMSTATCOL, 9); 448 putint(pgtokb(cnt.v_inactive_count), VMSTATROW + 4, VMSTATCOL, 9); 449 putint(pgtokb(cnt.v_cache_count), VMSTATROW + 5, VMSTATCOL, 9); 450 putint(pgtokb(cnt.v_free_count), VMSTATROW + 6, VMSTATCOL, 9); 451 PUTRATE(Cnt.v_dfree, VMSTATROW + 7, VMSTATCOL, 9); 452 PUTRATE(Cnt.v_pfree, VMSTATROW + 8, VMSTATCOL, 9); 453 PUTRATE(Cnt.v_reactivated, VMSTATROW + 9, VMSTATCOL, 9); 454 PUTRATE(Cnt.v_pdwakeups, VMSTATROW + 10, VMSTATCOL, 9); 455 PUTRATE(Cnt.v_pdpages, VMSTATROW + 11, VMSTATCOL, 9); 456 PUTRATE(Cnt.v_intrans, VMSTATROW + 12, VMSTATCOL, 9); 457 putint(s.bufspace/1024, VMSTATROW + 13, VMSTATCOL, 9); 458 PUTRATE(Cnt.v_vnodein, PAGEROW + 2, PAGECOL + 5, 5); 459 PUTRATE(Cnt.v_vnodeout, PAGEROW + 2, PAGECOL + 10, 5); 460 PUTRATE(Cnt.v_swapin, PAGEROW + 2, PAGECOL + 17, 5); 461 PUTRATE(Cnt.v_swapout, PAGEROW + 2, PAGECOL + 22, 5); 462 PUTRATE(Cnt.v_vnodepgsin, PAGEROW + 3, PAGECOL + 5, 5); 463 PUTRATE(Cnt.v_vnodepgsout, PAGEROW + 3, PAGECOL + 10, 5); 464 PUTRATE(Cnt.v_swappgsin, PAGEROW + 3, PAGECOL + 17, 5); 465 PUTRATE(Cnt.v_swappgsout, PAGEROW + 3, PAGECOL + 22, 5); 466 PUTRATE(Cnt.v_swtch, GENSTATROW + 1, GENSTATCOL, 5); 467 PUTRATE(Cnt.v_trap, GENSTATROW + 1, GENSTATCOL + 5, 5); 468 PUTRATE(Cnt.v_syscall, GENSTATROW + 1, GENSTATCOL + 10, 5); 469 PUTRATE(Cnt.v_intr, GENSTATROW + 1, GENSTATCOL + 15, 5); 470 PUTRATE(Cnt.v_soft, GENSTATROW + 1, GENSTATCOL + 20, 5); 471 PUTRATE(Cnt.v_vm_faults, GENSTATROW + 1, GENSTATCOL + 25, 5); 472 mvprintw(DISKROW, DISKCOL + 5, " "); 473 for (i = 0, c = 0; i < dk_ndrive && c < MAXDRIVES; i++) 474 if (dk_select[i]) { 475 mvprintw(DISKROW, DISKCOL + 5 + 5 * c, 476 " %3.3s", dr_name[i]); 477 dinfo(i, ++c); 478 } 479 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 480 putint((nchtotal.ncs_goodhits + nchtotal.ncs_neghits), 481 NAMEIROW + 2, NAMEICOL + 9, 9); 482 #define nz(x) ((x) ? (x) : 1) 483 putfloat((nchtotal.ncs_goodhits+nchtotal.ncs_neghits) * 484 100.0 / nz(s.nchcount), 485 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 486 putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 487 putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), 488 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 489 #undef nz 490 } 491 492 int 493 cmdkre(cmd, args) 494 char *cmd, *args; 495 { 496 497 if (prefix(cmd, "run")) { 498 copyinfo(&s2, &s1); 499 state = RUN; 500 return (1); 501 } 502 if (prefix(cmd, "boot")) { 503 state = BOOT; 504 copyinfo(&z, &s1); 505 return (1); 506 } 507 if (prefix(cmd, "time")) { 508 state = TIME; 509 return (1); 510 } 511 if (prefix(cmd, "zero")) { 512 if (state == RUN) 513 getinfo(&s1, RUN); 514 return (1); 515 } 516 return (dkcmd(cmd, args)); 517 } 518 519 /* calculate number of users on the system */ 520 static int 521 ucount() 522 { 523 register int nusers = 0; 524 525 if (ut < 0) 526 return (0); 527 while (read(ut, &utmp, sizeof(utmp))) 528 if (utmp.ut_name[0] != '\0') 529 nusers++; 530 531 lseek(ut, 0L, L_SET); 532 return (nusers); 533 } 534 535 static float 536 cputime(indx) 537 int indx; 538 { 539 double t; 540 register int i; 541 542 t = 0; 543 for (i = 0; i < CPUSTATES; i++) 544 t += s.time[i]; 545 if (t == 0.0) 546 t = 1.0; 547 return (s.time[indx] * 100.0 / t); 548 } 549 550 static void 551 putint(n, l, c, w) 552 int n, l, c, w; 553 { 554 char b[128]; 555 556 move(l, c); 557 if (n == 0) { 558 while (w-- > 0) 559 addch(' '); 560 return; 561 } 562 sprintf(b, "%*d", w, n); 563 if (strlen(b) > w) { 564 while (w-- > 0) 565 addch('*'); 566 return; 567 } 568 addstr(b); 569 } 570 571 static void 572 putfloat(f, l, c, w, d, nz) 573 double f; 574 int l, c, w, d, nz; 575 { 576 char b[128]; 577 578 move(l, c); 579 if (nz && f == 0.0) { 580 while (--w >= 0) 581 addch(' '); 582 return; 583 } 584 sprintf(b, "%*.*f", w, d, f); 585 if (strlen(b) > w) { 586 while (--w >= 0) 587 addch('*'); 588 return; 589 } 590 addstr(b); 591 } 592 593 static void 594 getinfo(s, st) 595 struct Info *s; 596 enum state st; 597 { 598 int mib[2], size; 599 extern int errno; 600 601 NREAD(X_CPTIME, s->time, sizeof s->time); 602 NREAD(X_CNT, &s->Cnt, sizeof s->Cnt); 603 NREAD(X_BUFFERSPACE, &s->bufspace, LONG); 604 NREAD(X_DK_BUSY, &s->dk_busy, LONG); 605 NREAD(X_DK_TIME, s->dk_time, dk_ndrive * LONG); 606 NREAD(X_DK_XFER, s->dk_xfer, dk_ndrive * LONG); 607 NREAD(X_DK_WDS, s->dk_wds, dk_ndrive * LONG); 608 NREAD(X_DK_SEEK, s->dk_seek, dk_ndrive * LONG); 609 NREAD(X_NCHSTATS, &s->nchstats, sizeof s->nchstats); 610 NREAD(X_INTRCNT, s->intrcnt, nintr * LONG); 611 size = sizeof(s->Total); 612 mib[0] = CTL_VM; 613 mib[1] = VM_METER; 614 if (sysctl(mib, 2, &s->Total, &size, NULL, 0) < 0) { 615 error("Can't get kernel info: %s\n", strerror(errno)); 616 bzero(&s->Total, sizeof(s->Total)); 617 } 618 } 619 620 static void 621 allocinfo(s) 622 struct Info *s; 623 { 624 625 s->intrcnt = (long *) malloc(nintr * sizeof(long)); 626 if (s->intrcnt == NULL) { 627 fprintf(stderr, "systat: out of memory\n"); 628 exit(2); 629 } 630 } 631 632 static void 633 copyinfo(from, to) 634 register struct Info *from, *to; 635 { 636 long *time, *wds, *seek, *xfer; 637 long *intrcnt; 638 639 /* 640 * time, wds, seek, and xfer are malloc'd so we have to 641 * save the pointers before the structure copy and then 642 * copy by hand. 643 */ 644 time = to->dk_time; wds = to->dk_wds; seek = to->dk_seek; 645 xfer = to->dk_xfer; intrcnt = to->intrcnt; 646 *to = *from; 647 bcopy(from->dk_time, to->dk_time = time, dk_ndrive * sizeof (long)); 648 bcopy(from->dk_wds, to->dk_wds = wds, dk_ndrive * sizeof (long)); 649 bcopy(from->dk_seek, to->dk_seek = seek, dk_ndrive * sizeof (long)); 650 bcopy(from->dk_xfer, to->dk_xfer = xfer, dk_ndrive * sizeof (long)); 651 bcopy(from->intrcnt, to->intrcnt = intrcnt, nintr * sizeof (int)); 652 } 653 654 static void 655 dinfo(dn, c) 656 int dn, c; 657 { 658 double words, atime, itime, xtime; 659 660 c = DISKCOL + c * 5; 661 atime = s.dk_time[dn]; 662 atime /= hertz; 663 words = s.dk_wds[dn]*32.0; /* number of words transferred */ 664 xtime = dk_mspw[dn]*words; /* transfer time */ 665 itime = atime - xtime; /* time not transferring */ 666 if (xtime < 0) 667 itime += xtime, xtime = 0; 668 if (itime < 0) 669 xtime += itime, itime = 0; 670 putint((int)((float)s.dk_seek[dn]/etime+0.5), DISKROW + 1, c, 5); 671 putint((int)((float)s.dk_xfer[dn]/etime+0.5), DISKROW + 2, c, 5); 672 putint((int)(words/etime/512.0 + 0.5), DISKROW + 3, c, 5); 673 if (s.dk_seek[dn]) 674 putfloat(itime*1000.0/s.dk_seek[dn], DISKROW + 4, c, 5, 1, 1); 675 else 676 putint(0, DISKROW + 4, c, 5); 677 } 678