vmstat.c revision 1.1
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 } s, s1, s2, z; 77 78 #define cnt s.Cnt 79 #define oldcnt s1.Cnt 80 #define total s.Total 81 #define nchtotal s.nchstats 82 #define oldnchtotal s1.nchstats 83 84 static enum state { BOOT, TIME, RUN } state = TIME; 85 86 static void allocinfo __P((struct Info *)); 87 static void copyinfo __P((struct Info *, struct Info *)); 88 static float cputime __P((int)); 89 static void dinfo __P((int, int)); 90 static void getinfo __P((struct Info *, enum state)); 91 static void putint __P((int, int, int, int)); 92 static void putfloat __P((double, int, int, int, int, int)); 93 static int ucount __P((void)); 94 95 static int ut; 96 static char buf[26]; 97 static time_t t; 98 static double etime; 99 static float hertz; 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 { "" }, 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 63 172 #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 7 /* 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 192 193 int 194 initkre() 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 hertz = stathz ? stathz : hz; 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 } 260 261 void 262 fetchkre() 263 { 264 time_t now; 265 266 time(&now); 267 strcpy(buf, ctime(&now)); 268 buf[16] = '\0'; 269 getinfo(&s, state); 270 } 271 272 void 273 labelkre() 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, " PAGING SWAPPING "); 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, "objlk"); 296 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "objht"); 297 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "zfod"); 298 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "nzfod"); 299 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "%%zfod"); 300 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "kern"); 301 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "wire"); 302 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "act"); 303 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "inact"); 304 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "free"); 305 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "daefr"); 306 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "prcfr"); 307 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "react"); 308 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "scan"); 309 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "hdrev"); 310 if (LINES - 1 > VMSTATROW + 16) 311 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "intrn"); 312 313 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 314 315 mvprintw(GRAPHROW, GRAPHCOL, 316 " . %% Sys . %% 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 Sys-cache Proc-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 " %3.3s", 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, "%-8.8s", 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_USER, CP_NICE, CP_IDLE }; 354 355 void 356 showkre() 357 { 358 float f1, f2; 359 int psiz, inttotal; 360 int i, l, c; 361 static int failcnt = 0; 362 363 for (i = 0; i < dk_ndrive; i++) { 364 X(dk_xfer); X(dk_seek); X(dk_wds); X(dk_time); 365 } 366 etime = 0; 367 for(i = 0; i < CPUSTATES; i++) { 368 X(time); 369 etime += s.time[i]; 370 } 371 if (etime < 5.0) { /* < 5 ticks - ignore this trash */ 372 if (failcnt++ >= MAXFAIL) { 373 clear(); 374 mvprintw(2, 10, "The alternate system clock has died!"); 375 mvprintw(3, 10, "Reverting to ``pigs'' display."); 376 move(CMDLINE, 0); 377 refresh(); 378 failcnt = 0; 379 sleep(5); 380 command("pigs"); 381 } 382 return; 383 } 384 failcnt = 0; 385 etime /= hertz; 386 inttotal = 0; 387 for (i = 0; i < nintr; i++) { 388 if (s.intrcnt[i] == 0) 389 continue; 390 if (intrloc[i] == 0) { 391 if (nextintsrow == LINES) 392 continue; 393 intrloc[i] = nextintsrow++; 394 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", 395 intrname[i]); 396 } 397 X(intrcnt); 398 l = (int)((float)s.intrcnt[i]/etime + 0.5); 399 inttotal += l; 400 putint(l, intrloc[i], INTSCOL, 8); 401 } 402 putint(inttotal, INTSROW + 1, INTSCOL, 8); 403 Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss); 404 Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); 405 s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits + 406 nchtotal.ncs_miss + nchtotal.ncs_long; 407 if (state == TIME) 408 s1.nchcount = s.nchcount; 409 410 psiz = 0; 411 f2 = 0.0; 412 413 /* 414 * Last CPU state not calculated yet. 415 */ 416 for (c = 0; c < CPUSTATES - 1; c++) { 417 i = cpuorder[c]; 418 f1 = cputime(i); 419 f2 += f1; 420 l = (int) ((f2 + 1.0) / 2.0) - psiz; 421 if (c == 0) 422 putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0); 423 else 424 putfloat(f1, GRAPHROW, GRAPHCOL + 12 * c, 425 5, 1, 0); 426 move(GRAPHROW + 2, psiz); 427 psiz += l; 428 while (l-- > 0) 429 addch(cpuchar[c]); 430 } 431 432 putint(ucount(), STATROW, STATCOL, 3); 433 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 434 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 435 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 436 mvaddstr(STATROW, STATCOL + 53, buf); 437 #define pgtokb(pg) ((pg) * cnt.v_page_size / 1024) 438 putint(pgtokb(total.t_arm), MEMROW + 2, MEMCOL + 3, 6); 439 putint(pgtokb(total.t_armshr), MEMROW + 2, MEMCOL + 9, 6); 440 putint(pgtokb(total.t_avm), MEMROW + 2, MEMCOL + 15, 7); 441 putint(pgtokb(total.t_avmshr), MEMROW + 2, MEMCOL + 22, 7); 442 putint(pgtokb(total.t_rm), MEMROW + 3, MEMCOL + 3, 6); 443 putint(pgtokb(total.t_rmshr), MEMROW + 3, MEMCOL + 9, 6); 444 putint(pgtokb(total.t_vm), MEMROW + 3, MEMCOL + 15, 7); 445 putint(pgtokb(total.t_vmshr), MEMROW + 3, MEMCOL + 22, 7); 446 putint(pgtokb(total.t_free), MEMROW + 2, MEMCOL + 29, 6); 447 putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 448 putint(total.t_pw, PROCSROW + 1, PROCSCOL + 6, 3); 449 putint(total.t_dw, PROCSROW + 1, PROCSCOL + 9, 3); 450 putint(total.t_sl, PROCSROW + 1, PROCSCOL + 12, 3); 451 putint(total.t_sw, PROCSROW + 1, PROCSCOL + 15, 3); 452 PUTRATE(Cnt.v_cow_faults, VMSTATROW + 0, VMSTATCOL + 3, 6); 453 PUTRATE(Cnt.v_lookups, VMSTATROW + 1, VMSTATCOL + 3, 6); 454 PUTRATE(Cnt.v_hits, VMSTATROW + 2, VMSTATCOL + 3, 6); 455 PUTRATE(Cnt.v_zfod, VMSTATROW + 3, VMSTATCOL + 4, 5); 456 PUTRATE(Cnt.v_nzfod, VMSTATROW + 4, VMSTATCOL + 3, 6); 457 putfloat(cnt.v_nzfod == 0 ? 0.0 : (100.0 * cnt.v_zfod / cnt.v_nzfod), 458 VMSTATROW + 5, VMSTATCOL + 2, 7, 2, 1); 459 putint(pgtokb(cnt.v_kernel_pages), VMSTATROW + 6, VMSTATCOL, 9); 460 putint(pgtokb(cnt.v_wire_count), VMSTATROW + 7, VMSTATCOL, 9); 461 putint(pgtokb(cnt.v_active_count), VMSTATROW + 8, VMSTATCOL, 9); 462 putint(pgtokb(cnt.v_inactive_count), VMSTATROW + 9, VMSTATCOL, 9); 463 putint(pgtokb(cnt.v_free_count), VMSTATROW + 10, VMSTATCOL, 9); 464 PUTRATE(Cnt.v_dfree, VMSTATROW + 11, VMSTATCOL, 9); 465 PUTRATE(Cnt.v_pfree, VMSTATROW + 12, VMSTATCOL, 9); 466 PUTRATE(Cnt.v_reactivated, VMSTATROW + 13, VMSTATCOL, 9); 467 PUTRATE(Cnt.v_scan, VMSTATROW + 14, VMSTATCOL, 9); 468 PUTRATE(Cnt.v_rev, VMSTATROW + 15, VMSTATCOL, 9); 469 if (LINES - 1 > VMSTATROW + 16) 470 PUTRATE(Cnt.v_intrans, VMSTATROW + 16, VMSTATCOL, 9); 471 PUTRATE(Cnt.v_pageins, PAGEROW + 2, PAGECOL + 5, 5); 472 PUTRATE(Cnt.v_pageouts, PAGEROW + 2, PAGECOL + 10, 5); 473 PUTRATE(Cnt.v_swpin, PAGEROW + 2, PAGECOL + 15, 5); /* - */ 474 PUTRATE(Cnt.v_swpout, PAGEROW + 2, PAGECOL + 20, 5); /* - */ 475 PUTRATE(Cnt.v_pgpgin, PAGEROW + 3, PAGECOL + 5, 5); /* ? */ 476 PUTRATE(Cnt.v_pgpgout, PAGEROW + 3, PAGECOL + 10, 5); /* ? */ 477 PUTRATE(Cnt.v_pswpin, PAGEROW + 3, PAGECOL + 15, 5); /* - */ 478 PUTRATE(Cnt.v_pswpout, PAGEROW + 3, PAGECOL + 20, 5); /* - */ 479 PUTRATE(Cnt.v_swtch, GENSTATROW + 1, GENSTATCOL, 5); 480 PUTRATE(Cnt.v_trap, GENSTATROW + 1, GENSTATCOL + 5, 5); 481 PUTRATE(Cnt.v_syscall, GENSTATROW + 1, GENSTATCOL + 10, 5); 482 PUTRATE(Cnt.v_intr, GENSTATROW + 1, GENSTATCOL + 15, 5); 483 PUTRATE(Cnt.v_soft, GENSTATROW + 1, GENSTATCOL + 20, 5); 484 PUTRATE(Cnt.v_faults, GENSTATROW + 1, GENSTATCOL + 25, 5); 485 mvprintw(DISKROW, DISKCOL + 5, " "); 486 for (i = 0, c = 0; i < dk_ndrive && c < MAXDRIVES; i++) 487 if (dk_select[i]) { 488 mvprintw(DISKROW, DISKCOL + 5 + 5 * c, 489 " %3.3s", dr_name[i]); 490 dinfo(i, ++c); 491 } 492 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 493 putint(nchtotal.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9); 494 #define nz(x) ((x) ? (x) : 1) 495 putfloat(nchtotal.ncs_goodhits * 100.0 / nz(s.nchcount), 496 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 497 putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 498 putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), 499 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 500 #undef nz 501 } 502 503 int 504 cmdkre(cmd, args) 505 char *cmd, *args; 506 { 507 508 if (prefix(cmd, "run")) { 509 copyinfo(&s2, &s1); 510 state = RUN; 511 return (1); 512 } 513 if (prefix(cmd, "boot")) { 514 state = BOOT; 515 copyinfo(&z, &s1); 516 return (1); 517 } 518 if (prefix(cmd, "time")) { 519 state = TIME; 520 return (1); 521 } 522 if (prefix(cmd, "zero")) { 523 if (state == RUN) 524 getinfo(&s1, RUN); 525 return (1); 526 } 527 return (dkcmd(cmd, args)); 528 } 529 530 /* calculate number of users on the system */ 531 static int 532 ucount() 533 { 534 register int nusers = 0; 535 536 if (ut < 0) 537 return (0); 538 while (read(ut, &utmp, sizeof(utmp))) 539 if (utmp.ut_name[0] != '\0') 540 nusers++; 541 542 lseek(ut, 0L, L_SET); 543 return (nusers); 544 } 545 546 static float 547 cputime(indx) 548 int indx; 549 { 550 double t; 551 register int i; 552 553 t = 0; 554 for (i = 0; i < CPUSTATES; i++) 555 t += s.time[i]; 556 if (t == 0.0) 557 t = 1.0; 558 return (s.time[indx] * 100.0 / t); 559 } 560 561 static void 562 putint(n, l, c, w) 563 int n, l, c, w; 564 { 565 char b[128]; 566 567 move(l, c); 568 if (n == 0) { 569 while (w-- > 0) 570 addch(' '); 571 return; 572 } 573 sprintf(b, "%*d", w, n); 574 if (strlen(b) > w) { 575 while (w-- > 0) 576 addch('*'); 577 return; 578 } 579 addstr(b); 580 } 581 582 static void 583 putfloat(f, l, c, w, d, nz) 584 double f; 585 int l, c, w, d, nz; 586 { 587 char b[128]; 588 589 move(l, c); 590 if (nz && f == 0.0) { 591 while (--w >= 0) 592 addch(' '); 593 return; 594 } 595 sprintf(b, "%*.*f", w, d, f); 596 if (strlen(b) > w) { 597 while (--w >= 0) 598 addch('*'); 599 return; 600 } 601 addstr(b); 602 } 603 604 static void 605 getinfo(s, st) 606 struct Info *s; 607 enum state st; 608 { 609 int mib[2], size; 610 extern int errno; 611 612 NREAD(X_CPTIME, s->time, sizeof s->time); 613 NREAD(X_CNT, &s->Cnt, sizeof s->Cnt); 614 NREAD(X_DK_BUSY, &s->dk_busy, LONG); 615 NREAD(X_DK_TIME, s->dk_time, dk_ndrive * LONG); 616 NREAD(X_DK_XFER, s->dk_xfer, dk_ndrive * LONG); 617 NREAD(X_DK_WDS, s->dk_wds, dk_ndrive * LONG); 618 NREAD(X_DK_SEEK, s->dk_seek, dk_ndrive * LONG); 619 NREAD(X_NCHSTATS, &s->nchstats, sizeof s->nchstats); 620 NREAD(X_INTRCNT, s->intrcnt, nintr * LONG); 621 size = sizeof(s->Total); 622 mib[0] = CTL_VM; 623 mib[1] = VM_METER; 624 if (sysctl(mib, 2, &s->Total, &size, NULL, 0) < 0) { 625 error("Can't get kernel info: %s\n", strerror(errno)); 626 bzero(&s->Total, sizeof(s->Total)); 627 } 628 } 629 630 static void 631 allocinfo(s) 632 struct Info *s; 633 { 634 635 s->intrcnt = (long *) malloc(nintr * sizeof(long)); 636 if (s->intrcnt == NULL) { 637 fprintf(stderr, "systat: out of memory\n"); 638 exit(2); 639 } 640 } 641 642 static void 643 copyinfo(from, to) 644 register struct Info *from, *to; 645 { 646 long *time, *wds, *seek, *xfer; 647 long *intrcnt; 648 649 /* 650 * time, wds, seek, and xfer are malloc'd so we have to 651 * save the pointers before the structure copy and then 652 * copy by hand. 653 */ 654 time = to->dk_time; wds = to->dk_wds; seek = to->dk_seek; 655 xfer = to->dk_xfer; intrcnt = to->intrcnt; 656 *to = *from; 657 bcopy(from->dk_time, to->dk_time = time, dk_ndrive * sizeof (long)); 658 bcopy(from->dk_wds, to->dk_wds = wds, dk_ndrive * sizeof (long)); 659 bcopy(from->dk_seek, to->dk_seek = seek, dk_ndrive * sizeof (long)); 660 bcopy(from->dk_xfer, to->dk_xfer = xfer, dk_ndrive * sizeof (long)); 661 bcopy(from->intrcnt, to->intrcnt = intrcnt, nintr * sizeof (int)); 662 } 663 664 static void 665 dinfo(dn, c) 666 int dn, c; 667 { 668 double words, atime, itime, xtime; 669 670 c = DISKCOL + c * 5; 671 atime = s.dk_time[dn]; 672 atime /= hertz; 673 words = s.dk_wds[dn]*32.0; /* number of words transferred */ 674 xtime = dk_mspw[dn]*words; /* transfer time */ 675 itime = atime - xtime; /* time not transferring */ 676 if (xtime < 0) 677 itime += xtime, xtime = 0; 678 if (itime < 0) 679 xtime += itime, itime = 0; 680 putint((int)((float)s.dk_seek[dn]/etime+0.5), DISKROW + 1, c, 5); 681 putint((int)((float)s.dk_xfer[dn]/etime+0.5), DISKROW + 2, c, 5); 682 putint((int)(words/etime/512.0 + 0.5), DISKROW + 3, c, 5); 683 if (s.dk_seek[dn]) 684 putfloat(itime*1000.0/s.dk_seek[dn], DISKROW + 4, c, 5, 1, 1); 685 else 686 putint(0, DISKROW + 4, c, 5); 687 } 688
Indexes created Wed Sep 24 05:09:52 GMT 2025