vmstat.c revision 9501
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 <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 64static 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 85static enum state { BOOT, TIME, RUN } state = TIME; 86 87static void allocinfo __P((struct Info *)); 88static void copyinfo __P((struct Info *, struct Info *)); 89static float cputime __P((int)); 90static void dinfo __P((int, int)); 91static void getinfo __P((struct Info *, enum state)); 92static void putint __P((int, int, int, int)); 93static void putfloat __P((double, int, int, int, int, int)); 94static int ucount __P((void)); 95 96static int ut; 97static char buf[26]; 98static time_t t; 99static double etime; 100static int nintr; 101static long *intrloc; 102static char **intrname; 103static int nextintsrow; 104 105struct utmp utmp; 106 107 108WINDOW * 109openkre() 110{ 111 112 ut = open(_PATH_UTMP, O_RDONLY); 113 if (ut < 0) 114 error("No utmp"); 115 return (stdscr); 116} 117 118void 119closekre(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 131static struct nlist namelist[] = { 132#define X_CPTIME 0 133 { "_cp_time" }, 134#define X_CNT 1 135 { "_cnt" }, 136#define X_BUFFERSPACE 2 137 { "_bufspace" }, 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 { "" }, 159}; 160 161/* 162 * These constants define where the major pieces are laid out 163 */ 164#define STATROW 0 /* uses 1 row and 68 cols */ 165#define STATCOL 2 166#define MEMROW 2 /* uses 4 rows and 31 cols */ 167#define MEMCOL 0 168#define PAGEROW 2 /* uses 4 rows and 26 cols */ 169#define PAGECOL 36 170#define INTSROW 2 /* uses all rows to bottom and 17 cols */ 171#define INTSCOL 61 172#define PROCSROW 7 /* uses 2 rows and 20 cols */ 173#define PROCSCOL 0 174#define GENSTATROW 7 /* uses 2 rows and 30 cols */ 175#define GENSTATCOL 20 176#define VMSTATROW 6 /* uses 17 rows and 12 cols */ 177#define VMSTATCOL 48 178#define GRAPHROW 10 /* uses 3 rows and 51 cols */ 179#define GRAPHCOL 0 180#define NAMEIROW 14 /* uses 3 rows and 38 cols */ 181#define NAMEICOL 0 182#define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ 183#define DISKCOL 0 184 185#define DRIVESPACE 9 /* max # for space */ 186 187#if DK_NDRIVE > DRIVESPACE 188#define MAXDRIVES DRIVESPACE /* max # to display */ 189#else 190#define MAXDRIVES DK_NDRIVE /* max # to display */ 191#endif 192 193int 194initkre() 195{ 196 char *intrnamebuf, *cp; 197 int i; 198 static int once = 0; 199 200 if (namelist[0].n_type == 0) { 201 if (kvm_nlist(kd, namelist)) { 202 nlisterr(namelist); 203 return(0); 204 } 205 if (namelist[0].n_type == 0) { 206 error("No namelist"); 207 return(0); 208 } 209 } 210 if (! dkinit()) 211 return(0); 212 if (dk_ndrive && !once) { 213#define allocate(e, t) \ 214 s./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 215 s1./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 216 s2./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 217 z./**/e = (t *)calloc(dk_ndrive, sizeof (t)); 218 allocate(dk_time, long); 219 allocate(dk_wds, long); 220 allocate(dk_seek, long); 221 allocate(dk_xfer, long); 222 once = 1; 223#undef allocate 224 } 225 if (nintr == 0) { 226 nintr = (namelist[X_EINTRCNT].n_value - 227 namelist[X_INTRCNT].n_value) / sizeof (long); 228 intrloc = calloc(nintr, sizeof (long)); 229 intrname = calloc(nintr, sizeof (long)); 230 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 231 namelist[X_INTRNAMES].n_value); 232 if (intrnamebuf == 0 || intrname == 0 || intrloc == 0) { 233 error("Out of memory\n"); 234 if (intrnamebuf) 235 free(intrnamebuf); 236 if (intrname) 237 free(intrname); 238 if (intrloc) 239 free(intrloc); 240 nintr = 0; 241 return(0); 242 } 243 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 244 NVAL(X_INTRNAMES)); 245 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 246 intrname[i] = cp; 247 cp += strlen(cp) + 1; 248 } 249 nextintsrow = INTSROW + 2; 250 allocinfo(&s); 251 allocinfo(&s1); 252 allocinfo(&s2); 253 allocinfo(&z); 254 } 255 getinfo(&s2, RUN); 256 copyinfo(&s2, &s1); 257 return(1); 258} 259 260void 261fetchkre() 262{ 263 time_t now; 264 265 time(&now); 266 strcpy(buf, ctime(&now)); 267 buf[16] = '\0'; 268 getinfo(&s, state); 269} 270 271void 272labelkre() 273{ 274 register int i, j; 275 276 clear(); 277 mvprintw(STATROW, STATCOL + 4, "users Load"); 278 mvprintw(MEMROW, MEMCOL, "Mem:KB REAL VIRTUAL"); 279 mvprintw(MEMROW + 1, MEMCOL, " Tot Share Tot Share"); 280 mvprintw(MEMROW + 2, MEMCOL, "Act"); 281 mvprintw(MEMROW + 3, MEMCOL, "All"); 282 283 mvprintw(MEMROW + 1, MEMCOL + 31, "Free"); 284 285 mvprintw(PAGEROW, PAGECOL, " VN PAGER SWAP PAGER "); 286 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 287 mvprintw(PAGEROW + 2, PAGECOL, "count"); 288 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 289 290 mvprintw(INTSROW, INTSCOL + 3, " Interrupts"); 291 mvprintw(INTSROW + 1, INTSCOL + 9, "total"); 292 293 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "cow"); 294 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "zfod"); 295 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "wire"); 296 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "act"); 297 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "inact"); 298 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "cache"); 299 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "free"); 300 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "daefr"); 301 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "prcfr"); 302 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "react"); 303 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "pdwake"); 304 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "pdpgs"); 305 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "intrn"); 306 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "buf"); 307 308 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 309 310 mvprintw(GRAPHROW, GRAPHCOL, 311 " . %%Sys . %%Intr . %%User . %%Nice . %%Idle"); 312 mvprintw(PROCSROW, PROCSCOL, "Proc:r p d s w"); 313 mvprintw(GRAPHROW + 1, GRAPHCOL, 314 "| | | | | | | | | | |"); 315 316 mvprintw(NAMEIROW, NAMEICOL, "Namei Name-cache Proc-cache"); 317 mvprintw(NAMEIROW + 1, NAMEICOL, 318 " Calls hits %% hits %%"); 319 mvprintw(DISKROW, DISKCOL, "Discs"); 320 mvprintw(DISKROW + 1, DISKCOL, "seeks"); 321 mvprintw(DISKROW + 2, DISKCOL, "xfers"); 322 mvprintw(DISKROW + 3, DISKCOL, " blks"); 323 mvprintw(DISKROW + 4, DISKCOL, " msps"); 324 j = 0; 325 for (i = 0; i < dk_ndrive && j < MAXDRIVES; i++) 326 if (dk_select[i]) { 327 mvprintw(DISKROW, DISKCOL + 5 + 5 * j, 328 " %3.3s", dr_name[j]); 329 j++; 330 } 331 for (i = 0; i < nintr; i++) { 332 if (intrloc[i] == 0) 333 continue; 334 mvprintw(intrloc[i], INTSCOL + 9, "%-10.10s", intrname[i]); 335 } 336} 337 338#define X(fld) {t=s.fld[i]; s.fld[i]-=s1.fld[i]; if(state==TIME) s1.fld[i]=t;} 339#define Y(fld) {t = s.fld; s.fld -= s1.fld; if(state == TIME) s1.fld = t;} 340#define Z(fld) {t = s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld; \ 341 if(state == TIME) s1.nchstats.fld = t;} 342#define PUTRATE(fld, l, c, w) \ 343 Y(fld); \ 344 putint((int)((float)s.fld/etime + 0.5), l, c, w) 345#define MAXFAIL 5 346 347static char cpuchar[CPUSTATES] = { '=' , '+', '>', '-', ' ' }; 348static char cpuorder[CPUSTATES] = { CP_SYS, CP_INTR, CP_USER, CP_NICE, 349 CP_IDLE }; 350 351void 352showkre() 353{ 354 float f1, f2; 355 int psiz, inttotal; 356 int i, l, c; 357 static int failcnt = 0; 358 359 for (i = 0; i < dk_ndrive; i++) { 360 X(dk_xfer); X(dk_seek); X(dk_wds); X(dk_time); 361 } 362 etime = 0; 363 for(i = 0; i < CPUSTATES; i++) { 364 X(time); 365 etime += s.time[i]; 366 } 367 if (etime < 5.0) { /* < 5 ticks - ignore this trash */ 368 if (failcnt++ >= MAXFAIL) { 369 clear(); 370 mvprintw(2, 10, "The alternate system clock has died!"); 371 mvprintw(3, 10, "Reverting to ``pigs'' display."); 372 move(CMDLINE, 0); 373 refresh(); 374 failcnt = 0; 375 sleep(5); 376 command("pigs"); 377 } 378 return; 379 } 380 failcnt = 0; 381 etime /= hertz; 382 inttotal = 0; 383 for (i = 0; i < nintr; i++) { 384 if (s.intrcnt[i] == 0) 385 continue; 386 if (intrloc[i] == 0) { 387 if (nextintsrow == LINES) 388 continue; 389 intrloc[i] = nextintsrow++; 390 mvprintw(intrloc[i], INTSCOL + 9, "%-10.10s", 391 intrname[i]); 392 } 393 X(intrcnt); 394 l = (int)((float)s.intrcnt[i]/etime + 0.5); 395 inttotal += l; 396 putint(l, intrloc[i], INTSCOL + 2, 6); 397 } 398 putint(inttotal, INTSROW + 1, INTSCOL + 2, 6); 399 Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss); 400 Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); Z(ncs_neghits); 401 s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits + 402 nchtotal.ncs_miss + nchtotal.ncs_long + nchtotal.ncs_neghits; 403 if (state == TIME) 404 s1.nchcount = s.nchcount; 405 406 psiz = 0; 407 f2 = 0.0; 408 for (c = 0; c < CPUSTATES; c++) { 409 i = cpuorder[c]; 410 f1 = cputime(i); 411 f2 += f1; 412 l = (int) ((f2 + 1.0) / 2.0) - psiz; 413 if (f1 > 99.9) 414 f1 = 99.9; /* no room to display 100.0 */ 415 putfloat(f1, GRAPHROW, GRAPHCOL + 10 * c, 4, 1, 0); 416 move(GRAPHROW + 2, psiz); 417 psiz += l; 418 while (l-- > 0) 419 addch(cpuchar[c]); 420 } 421 422 putint(ucount(), STATROW, STATCOL, 3); 423 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 424 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 425 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 426 mvaddstr(STATROW, STATCOL + 53, buf); 427#define pgtokb(pg) ((pg) * cnt.v_page_size / 1024) 428 putint(pgtokb(total.t_arm), MEMROW + 2, MEMCOL + 3, 6); 429 putint(pgtokb(total.t_armshr), MEMROW + 2, MEMCOL + 9, 6); 430 putint(pgtokb(total.t_avm), MEMROW + 2, MEMCOL + 15, 7); 431 putint(pgtokb(total.t_avmshr), MEMROW + 2, MEMCOL + 22, 7); 432 putint(pgtokb(total.t_rm), MEMROW + 3, MEMCOL + 3, 6); 433 putint(pgtokb(total.t_rmshr), MEMROW + 3, MEMCOL + 9, 6); 434 putint(pgtokb(total.t_vm), MEMROW + 3, MEMCOL + 15, 7); 435 putint(pgtokb(total.t_vmshr), MEMROW + 3, MEMCOL + 22, 7); 436 putint(pgtokb(total.t_free), MEMROW + 2, MEMCOL + 29, 6); 437 putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 438 putint(total.t_pw, PROCSROW + 1, PROCSCOL + 6, 3); 439 putint(total.t_dw, PROCSROW + 1, PROCSCOL + 9, 3); 440 putint(total.t_sl, PROCSROW + 1, PROCSCOL + 12, 3); 441 putint(total.t_sw, PROCSROW + 1, PROCSCOL + 15, 3); 442 PUTRATE(Cnt.v_cow_faults, VMSTATROW + 0, VMSTATCOL + 3, 6); 443 PUTRATE(Cnt.v_zfod, VMSTATROW + 1, VMSTATCOL + 4, 5); 444 putint(pgtokb(cnt.v_wire_count), VMSTATROW + 2, VMSTATCOL, 9); 445 putint(pgtokb(cnt.v_active_count), VMSTATROW + 3, VMSTATCOL, 9); 446 putint(pgtokb(cnt.v_inactive_count), VMSTATROW + 4, VMSTATCOL, 9); 447 putint(pgtokb(cnt.v_cache_count), VMSTATROW + 5, VMSTATCOL, 9); 448 putint(pgtokb(cnt.v_free_count), VMSTATROW + 6, VMSTATCOL, 9); 449 PUTRATE(Cnt.v_dfree, VMSTATROW + 7, VMSTATCOL, 9); 450 PUTRATE(Cnt.v_pfree, VMSTATROW + 8, VMSTATCOL, 9); 451 PUTRATE(Cnt.v_reactivated, VMSTATROW + 9, VMSTATCOL, 9); 452 PUTRATE(Cnt.v_pdwakeups, VMSTATROW + 10, VMSTATCOL, 9); 453 PUTRATE(Cnt.v_pdpages, VMSTATROW + 11, VMSTATCOL, 9); 454 PUTRATE(Cnt.v_intrans, VMSTATROW + 12, VMSTATCOL, 9); 455 putint(s.bufspace/1024, VMSTATROW + 13, VMSTATCOL, 9); 456 PUTRATE(Cnt.v_vnodein, PAGEROW + 2, PAGECOL + 5, 5); 457 PUTRATE(Cnt.v_vnodeout, PAGEROW + 2, PAGECOL + 10, 5); 458 PUTRATE(Cnt.v_swapin, PAGEROW + 2, PAGECOL + 17, 5); 459 PUTRATE(Cnt.v_swapout, PAGEROW + 2, PAGECOL + 22, 5); 460 PUTRATE(Cnt.v_vnodepgsin, PAGEROW + 3, PAGECOL + 5, 5); 461 PUTRATE(Cnt.v_vnodepgsout, PAGEROW + 3, PAGECOL + 10, 5); 462 PUTRATE(Cnt.v_swappgsin, PAGEROW + 3, PAGECOL + 17, 5); 463 PUTRATE(Cnt.v_swappgsout, PAGEROW + 3, PAGECOL + 22, 5); 464 PUTRATE(Cnt.v_swtch, GENSTATROW + 1, GENSTATCOL, 5); 465 PUTRATE(Cnt.v_trap, GENSTATROW + 1, GENSTATCOL + 5, 5); 466 PUTRATE(Cnt.v_syscall, GENSTATROW + 1, GENSTATCOL + 10, 5); 467 PUTRATE(Cnt.v_intr, GENSTATROW + 1, GENSTATCOL + 15, 5); 468 PUTRATE(Cnt.v_soft, GENSTATROW + 1, GENSTATCOL + 20, 5); 469 PUTRATE(Cnt.v_vm_faults, GENSTATROW + 1, GENSTATCOL + 25, 5); 470 mvprintw(DISKROW, DISKCOL + 5, " "); 471 for (i = 0, c = 0; i < dk_ndrive && c < MAXDRIVES; i++) 472 if (dk_select[i]) { 473 mvprintw(DISKROW, DISKCOL + 5 + 5 * c, 474 " %3.3s", dr_name[i]); 475 dinfo(i, ++c); 476 } 477 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 478 putint((nchtotal.ncs_goodhits + nchtotal.ncs_neghits), 479 NAMEIROW + 2, NAMEICOL + 9, 9); 480#define nz(x) ((x) ? (x) : 1) 481 putfloat((nchtotal.ncs_goodhits+nchtotal.ncs_neghits) * 482 100.0 / nz(s.nchcount), 483 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 484 putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 485 putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), 486 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 487#undef nz 488} 489 490int 491cmdkre(cmd, args) 492 char *cmd, *args; 493{ 494 495 if (prefix(cmd, "run")) { 496 copyinfo(&s2, &s1); 497 state = RUN; 498 return (1); 499 } 500 if (prefix(cmd, "boot")) { 501 state = BOOT; 502 copyinfo(&z, &s1); 503 return (1); 504 } 505 if (prefix(cmd, "time")) { 506 state = TIME; 507 return (1); 508 } 509 if (prefix(cmd, "zero")) { 510 if (state == RUN) 511 getinfo(&s1, RUN); 512 return (1); 513 } 514 return (dkcmd(cmd, args)); 515} 516 517/* calculate number of users on the system */ 518static int 519ucount() 520{ 521 register int nusers = 0; 522 523 if (ut < 0) 524 return (0); 525 while (read(ut, &utmp, sizeof(utmp))) 526 if (utmp.ut_name[0] != '\0') 527 nusers++; 528 529 lseek(ut, 0L, L_SET); 530 return (nusers); 531} 532 533static float 534cputime(indx) 535 int indx; 536{ 537 double t; 538 register int i; 539 540 t = 0; 541 for (i = 0; i < CPUSTATES; i++) 542 t += s.time[i]; 543 if (t == 0.0) 544 t = 1.0; 545 return (s.time[indx] * 100.0 / t); 546} 547 548static void 549putint(n, l, c, w) 550 int n, l, c, w; 551{ 552 char b[128]; 553 554 move(l, c); 555 if (n == 0) { 556 while (w-- > 0) 557 addch(' '); 558 return; 559 } 560 sprintf(b, "%*d", w, n); 561 if (strlen(b) > w) { 562 while (w-- > 0) 563 addch('*'); 564 return; 565 } 566 addstr(b); 567} 568 569static void 570putfloat(f, l, c, w, d, nz) 571 double f; 572 int l, c, w, d, nz; 573{ 574 char b[128]; 575 576 move(l, c); 577 if (nz && f == 0.0) { 578 while (--w >= 0) 579 addch(' '); 580 return; 581 } 582 sprintf(b, "%*.*f", w, d, f); 583 if (strlen(b) > w) { 584 while (--w >= 0) 585 addch('*'); 586 return; 587 } 588 addstr(b); 589} 590 591static void 592getinfo(s, st) 593 struct Info *s; 594 enum state st; 595{ 596 int mib[2], size; 597 extern int errno; 598 599 NREAD(X_CPTIME, s->time, sizeof s->time); 600 NREAD(X_CNT, &s->Cnt, sizeof s->Cnt); 601 NREAD(X_BUFFERSPACE, &s->bufspace, LONG); 602 NREAD(X_DK_BUSY, &s->dk_busy, LONG); 603 NREAD(X_DK_TIME, s->dk_time, dk_ndrive * LONG); 604 NREAD(X_DK_XFER, s->dk_xfer, dk_ndrive * LONG); 605 NREAD(X_DK_WDS, s->dk_wds, dk_ndrive * LONG); 606 NREAD(X_DK_SEEK, s->dk_seek, dk_ndrive * LONG); 607 NREAD(X_NCHSTATS, &s->nchstats, sizeof s->nchstats); 608 NREAD(X_INTRCNT, s->intrcnt, nintr * LONG); 609 size = sizeof(s->Total); 610 mib[0] = CTL_VM; 611 mib[1] = VM_METER; 612 if (sysctl(mib, 2, &s->Total, &size, NULL, 0) < 0) { 613 error("Can't get kernel info: %s\n", strerror(errno)); 614 bzero(&s->Total, sizeof(s->Total)); 615 } 616} 617 618static void 619allocinfo(s) 620 struct Info *s; 621{ 622 623 s->intrcnt = (long *) malloc(nintr * sizeof(long)); 624 if (s->intrcnt == NULL) { 625 fprintf(stderr, "systat: out of memory\n"); 626 exit(2); 627 } 628} 629 630static void 631copyinfo(from, to) 632 register struct Info *from, *to; 633{ 634 long *time, *wds, *seek, *xfer; 635 long *intrcnt; 636 637 /* 638 * time, wds, seek, and xfer are malloc'd so we have to 639 * save the pointers before the structure copy and then 640 * copy by hand. 641 */ 642 time = to->dk_time; wds = to->dk_wds; seek = to->dk_seek; 643 xfer = to->dk_xfer; intrcnt = to->intrcnt; 644 *to = *from; 645 bcopy(from->dk_time, to->dk_time = time, dk_ndrive * sizeof (long)); 646 bcopy(from->dk_wds, to->dk_wds = wds, dk_ndrive * sizeof (long)); 647 bcopy(from->dk_seek, to->dk_seek = seek, dk_ndrive * sizeof (long)); 648 bcopy(from->dk_xfer, to->dk_xfer = xfer, dk_ndrive * sizeof (long)); 649 bcopy(from->intrcnt, to->intrcnt = intrcnt, nintr * sizeof (int)); 650} 651 652static void 653dinfo(dn, c) 654 int dn, c; 655{ 656 double words, atime, itime, xtime; 657 658 c = DISKCOL + c * 5; 659 atime = s.dk_time[dn]; 660 atime /= hertz; 661 words = s.dk_wds[dn]*32.0; /* number of words transferred */ 662 xtime = dk_mspw[dn]*words; /* transfer time */ 663 itime = atime - xtime; /* time not transferring */ 664 if (xtime < 0) 665 itime += xtime, xtime = 0; 666 if (itime < 0) 667 xtime += itime, itime = 0; 668 putint((int)((float)s.dk_seek[dn]/etime+0.5), DISKROW + 1, c, 5); 669 putint((int)((float)s.dk_xfer[dn]/etime+0.5), DISKROW + 2, c, 5); 670 putint((int)(words/etime/512.0 + 0.5), DISKROW + 3, c, 5); 671 if (s.dk_seek[dn]) 672 putfloat(itime*1000.0/s.dk_seek[dn], DISKROW + 4, c, 5, 1, 1); 673 else 674 putint(0, DISKROW + 4, c, 5); 675} 676