vmstat.c revision 1.39
1 /* $NetBSD: vmstat.c,v 1.39 2002/06/30 00:10:34 sommerfeld Exp $ */ 2 3 /*- 4 * Copyright (c) 1983, 1989, 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 #if 0 39 static char sccsid[] = "@(#)vmstat.c 8.2 (Berkeley) 1/12/94"; 40 #endif 41 __RCSID("$NetBSD: vmstat.c,v 1.39 2002/06/30 00:10:34 sommerfeld Exp $"); 42 #endif /* not lint */ 43 44 /* 45 * Cursed vmstat -- from Robert Elz. 46 */ 47 48 #include <sys/param.h> 49 #include <sys/dkstat.h> 50 #include <sys/user.h> 51 #include <sys/namei.h> 52 #include <sys/sysctl.h> 53 54 #include <uvm/uvm_extern.h> 55 56 #include <stdlib.h> 57 #include <string.h> 58 #include <utmp.h> 59 60 #include "systat.h" 61 #include "extern.h" 62 #include "dkstats.h" 63 64 static struct Info { 65 struct uvmexp_sysctl uvmexp; 66 struct vmtotal Total; 67 struct nchstats nchstats; 68 long nchcount; 69 long *intrcnt; 70 } s, s1, s2, z; 71 72 #define cnt s.Cnt 73 #define oldcnt s1.Cnt 74 #define total s.Total 75 #define nchtotal s.nchstats 76 #define oldnchtotal s1.nchstats 77 78 static enum state { BOOT, TIME, RUN } state = TIME; 79 80 static void allocinfo(struct Info *); 81 static void copyinfo(struct Info *, struct Info *); 82 static float cputime(int); 83 static void dinfo(int, int); 84 static void getinfo(struct Info *, enum state); 85 static void putint(int, int, int, int); 86 static void putfloat(double, int, int, int, int, int); 87 static int ucount(void); 88 89 static int ut; 90 static char buf[26]; 91 static u_int64_t t; 92 static double etime; 93 static float hertz; 94 static int nintr; 95 static long *intrloc; 96 static char **intrname; 97 static int nextintsrow; 98 99 struct utmp utmp; 100 101 WINDOW * 102 openvmstat(void) 103 { 104 105 ut = open(_PATH_UTMP, O_RDONLY); 106 if (ut < 0) 107 error("No utmp"); 108 return (stdscr); 109 } 110 111 void 112 closevmstat(WINDOW *w) 113 { 114 115 (void) close(ut); 116 if (w == NULL) 117 return; 118 wclear(w); 119 wrefresh(w); 120 } 121 122 123 static struct nlist namelist[] = { 124 #define X_NCHSTATS 0 125 { "_nchstats" }, 126 #define X_INTRNAMES 1 127 { "_intrnames" }, 128 #define X_EINTRNAMES 2 129 { "_eintrnames" }, 130 #define X_INTRCNT 3 131 { "_intrcnt" }, 132 #define X_EINTRCNT 4 133 { "_eintrcnt" }, 134 { "" }, 135 }; 136 137 /* 138 * These constants define where the major pieces are laid out 139 */ 140 #define STATROW 0 /* uses 1 row and 68 cols */ 141 #define STATCOL 2 142 #define MEMROW 2 /* uses 4 rows and 31 cols */ 143 #define MEMCOL 0 144 #define PAGEROW 2 /* uses 4 rows and 26 cols */ 145 #define PAGECOL 36 146 #define INTSROW 2 /* uses all rows to bottom and 17 cols */ 147 #define INTSCOL 63 148 #define PROCSROW 7 /* uses 2 rows and 20 cols */ 149 #define PROCSCOL 0 150 #define GENSTATROW 7 /* uses 2 rows and 30 cols */ 151 #define GENSTATCOL 18 152 #define VMSTATROW 7 /* uses 17 rows and 12 cols */ 153 #define VMSTATCOL 48 154 #define GRAPHROW 10 /* uses 3 rows and 51 cols */ 155 #define GRAPHCOL 0 156 #define NAMEIROW 14 /* uses 3 rows and 38 cols */ 157 #define NAMEICOL 0 158 #define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ 159 #define DISKCOL 0 160 161 #define DRIVESPACE 9 /* max # for space */ 162 163 #if DK_NDRIVE > DRIVESPACE 164 #define MAXDRIVES DRIVESPACE /* max # to display */ 165 #else 166 #define MAXDRIVES DK_NDRIVE /* max # to display */ 167 #endif 168 169 int 170 initvmstat(void) 171 { 172 char *intrnamebuf, *cp; 173 int i; 174 static int once = 0; 175 176 if (namelist[0].n_type == 0) { 177 if (kvm_nlist(kd, namelist)) { 178 nlisterr(namelist); 179 return(0); 180 } 181 if (namelist[0].n_type == 0) { 182 error("No namelist"); 183 return(0); 184 } 185 } 186 hertz = stathz ? stathz : hz; 187 if (! dkinit(1)) 188 return(0); 189 if (dk_ndrive && !once) { 190 #define allocate(e, t) \ 191 s./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 192 s1./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 193 s2./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 194 z./**/e = (t *)calloc(dk_ndrive, sizeof (t)); 195 once = 1; 196 #undef allocate 197 } 198 if (nintr == 0) { 199 nintr = (namelist[X_EINTRCNT].n_value - 200 namelist[X_INTRCNT].n_value) / sizeof (long); 201 intrloc = calloc(nintr, sizeof (long)); 202 intrname = calloc(nintr, sizeof (long)); 203 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 204 namelist[X_INTRNAMES].n_value); 205 if (intrnamebuf == NULL || intrname == 0 || intrloc == 0) { 206 error("Out of memory\n"); 207 if (intrnamebuf) 208 free(intrnamebuf); 209 if (intrname) 210 free(intrname); 211 if (intrloc) 212 free(intrloc); 213 nintr = 0; 214 return(0); 215 } 216 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 217 NVAL(X_INTRNAMES)); 218 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 219 intrname[i] = cp; 220 cp += strlen(cp) + 1; 221 } 222 nextintsrow = INTSROW + 2; 223 allocinfo(&s); 224 allocinfo(&s1); 225 allocinfo(&s2); 226 allocinfo(&z); 227 } 228 getinfo(&s2, RUN); 229 copyinfo(&s2, &s1); 230 return(1); 231 } 232 233 void 234 fetchvmstat(void) 235 { 236 time_t now; 237 238 time(&now); 239 strcpy(buf, ctime(&now)); 240 buf[19] = '\0'; 241 getinfo(&s, state); 242 } 243 244 void 245 labelvmstat(void) 246 { 247 int i, j; 248 249 clear(); 250 mvprintw(STATROW, STATCOL + 4, "users Load"); 251 mvprintw(MEMROW, MEMCOL, " memory totals (in KB)"); 252 mvprintw(MEMROW + 1, MEMCOL, " real virtual free"); 253 mvprintw(MEMROW + 2, MEMCOL, "Active"); 254 mvprintw(MEMROW + 3, MEMCOL, "All"); 255 256 mvprintw(PAGEROW, PAGECOL, " PAGING SWAPPING "); 257 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 258 mvprintw(PAGEROW + 2, PAGECOL, "ops"); 259 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 260 261 mvprintw(INTSROW, INTSCOL + 3, " Interrupts"); 262 mvprintw(INTSROW + 1, INTSCOL + 9, "total"); 263 264 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "forks"); 265 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "fkppw"); 266 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "fksvm"); 267 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "pwait"); 268 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "relck"); 269 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "rlkok"); 270 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "noram"); 271 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "ndcpy"); 272 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "fltcp"); 273 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "zfod"); 274 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "cow"); 275 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "fmin"); 276 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "ftarg"); 277 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "itarg"); 278 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "wired"); 279 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "pdfre"); 280 if (LINES - 1 > VMSTATROW + 16) 281 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "pdscn"); 282 283 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 284 285 mvprintw(GRAPHROW, GRAPHCOL, 286 " . %% Sy . %% Us . %% Ni . %% In . %% Id"); 287 mvprintw(PROCSROW, PROCSCOL, "Proc:r d s w"); 288 mvprintw(GRAPHROW + 1, GRAPHCOL, 289 "| | | | | | | | | | |"); 290 291 mvprintw(NAMEIROW, NAMEICOL, "Namei Sys-cache Proc-cache"); 292 mvprintw(NAMEIROW + 1, NAMEICOL, 293 " Calls hits %% hits %%"); 294 mvprintw(DISKROW, DISKCOL, "Discs"); 295 mvprintw(DISKROW + 1, DISKCOL, "seeks"); 296 mvprintw(DISKROW + 2, DISKCOL, "xfers"); 297 mvprintw(DISKROW + 3, DISKCOL, "Kbyte"); 298 mvprintw(DISKROW + 4, DISKCOL, "%%busy"); 299 j = 0; 300 for (i = 0; i < dk_ndrive && j < MAXDRIVES; i++) 301 if (dk_select[i]) { 302 mvprintw(DISKROW, DISKCOL + 5 + 5 * j, 303 " %4.4s", dr_name[j]); 304 j++; 305 } 306 for (i = 0; i < nintr; i++) { 307 if (intrloc[i] == 0) 308 continue; 309 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", intrname[i]); 310 } 311 } 312 313 #define X(fld) {t=s.fld[i]; s.fld[i]-=s1.fld[i]; if(state==TIME) s1.fld[i]=t;} 314 #define Y(fld) {t = s.fld; s.fld -= s1.fld; if(state == TIME) s1.fld = t;} 315 #define Z(fld) {t = s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld; \ 316 if(state == TIME) s1.nchstats.fld = t;} 317 #define PUTRATE(fld, l, c, w) {Y(fld); putint((int)((float)s.fld/etime + 0.5), l, c, w);} 318 #define MAXFAIL 5 319 320 static char cpuchar[CPUSTATES] = { '=' , '>', '-', '%', ' ' }; 321 static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_INTR, CP_IDLE }; 322 323 void 324 showvmstat(void) 325 { 326 float f1, f2; 327 int psiz, inttotal; 328 int i, l, c; 329 static int failcnt = 0; 330 331 if (state == TIME) 332 dkswap(); 333 etime = cur.cp_etime; 334 if ((etime * hertz) < 1.0) { /* < 5 ticks - ignore this trash */ 335 if (failcnt++ >= MAXFAIL) { 336 clear(); 337 mvprintw(2, 10, "The alternate system clock has died!"); 338 mvprintw(3, 10, "Reverting to ``pigs'' display."); 339 move(CMDLINE, 0); 340 refresh(); 341 failcnt = 0; 342 sleep(5); 343 command("pigs"); 344 } 345 return; 346 } 347 failcnt = 0; 348 inttotal = 0; 349 for (i = 0; i < nintr; i++) { 350 if (s.intrcnt[i] == 0) 351 continue; 352 if (intrloc[i] == 0) { 353 if (nextintsrow == LINES) 354 continue; 355 intrloc[i] = nextintsrow++; 356 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", 357 intrname[i]); 358 } 359 X(intrcnt); 360 l = (int)((float)s.intrcnt[i]/etime + 0.5); 361 inttotal += l; 362 putint(l, intrloc[i], INTSCOL, 8); 363 } 364 putint(inttotal, INTSROW + 1, INTSCOL, 8); 365 Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss); 366 Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); 367 s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits + 368 nchtotal.ncs_miss + nchtotal.ncs_long; 369 if (state == TIME) 370 s1.nchcount = s.nchcount; 371 372 psiz = 0; 373 f2 = 0.0; 374 375 /* 376 * Last CPU state not calculated yet. 377 */ 378 for (c = 0; c < CPUSTATES; c++) { 379 i = cpuorder[c]; 380 f1 = cputime(i); 381 f2 += f1; 382 l = (int) ((f2 + 1.0) / 2.0) - psiz; 383 if (c == 0) 384 putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0); 385 else 386 putfloat(f1, GRAPHROW, GRAPHCOL + 10 * c + 1, 5, 1, 0); 387 mvhline(GRAPHROW + 2, psiz, cpuchar[c], l); 388 psiz += l; 389 } 390 391 putint(ucount(), STATROW, STATCOL, 3); 392 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 393 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 394 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 395 mvaddstr(STATROW, STATCOL + 53, buf); 396 #define pgtokb(pg) ((pg) * (s.uvmexp.pagesize / 1024)) 397 398 putint(pgtokb(s.uvmexp.active), MEMROW + 2, MEMCOL + 6, 7); 399 putint(pgtokb(s.uvmexp.active + s.uvmexp.swpginuse), /* XXX */ 400 MEMROW + 2, MEMCOL + 16, 7); 401 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free), MEMROW + 3, MEMCOL + 6, 7); 402 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free + s.uvmexp.swpginuse), 403 MEMROW + 3, MEMCOL + 16, 7); 404 putint(pgtokb(s.uvmexp.free), MEMROW + 2, MEMCOL + 24, 7); 405 putint(pgtokb(s.uvmexp.free + s.uvmexp.swpages - s.uvmexp.swpginuse), 406 MEMROW + 3, MEMCOL + 24, 7); 407 putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 408 putint(total.t_dw, PROCSROW + 1, PROCSCOL + 6, 3); 409 putint(total.t_sl, PROCSROW + 1, PROCSCOL + 9, 3); 410 putint(total.t_sw, PROCSROW + 1, PROCSCOL + 12, 3); 411 PUTRATE(uvmexp.forks, VMSTATROW + 0, VMSTATCOL + 3, 6); 412 PUTRATE(uvmexp.forks_ppwait, VMSTATROW + 1, VMSTATCOL + 3, 6); 413 PUTRATE(uvmexp.forks_sharevm, VMSTATROW + 2, VMSTATCOL + 3, 6); 414 PUTRATE(uvmexp.fltpgwait, VMSTATROW + 3, VMSTATCOL + 4, 5); 415 PUTRATE(uvmexp.fltrelck, VMSTATROW + 4, VMSTATCOL + 3, 6); 416 PUTRATE(uvmexp.fltrelckok, VMSTATROW + 5, VMSTATCOL + 3, 6); 417 PUTRATE(uvmexp.fltnoram, VMSTATROW + 6, VMSTATCOL + 3, 6); 418 PUTRATE(uvmexp.fltamcopy, VMSTATROW + 7, VMSTATCOL + 3, 6); 419 PUTRATE(uvmexp.flt_prcopy, VMSTATROW + 8, VMSTATCOL + 3, 6); 420 PUTRATE(uvmexp.flt_przero, VMSTATROW + 9, VMSTATCOL + 3, 6); 421 PUTRATE(uvmexp.flt_acow, VMSTATROW + 10, VMSTATCOL, 9); 422 putint(s.uvmexp.freemin, VMSTATROW + 11, VMSTATCOL, 9); 423 putint(s.uvmexp.freetarg, VMSTATROW + 12, VMSTATCOL, 9); 424 putint(s.uvmexp.inactarg, VMSTATROW + 13, VMSTATCOL, 9); 425 putint(s.uvmexp.wired, VMSTATROW + 14, VMSTATCOL, 9); 426 PUTRATE(uvmexp.pdfreed, VMSTATROW + 15, VMSTATCOL, 9); 427 if (LINES - 1 > VMSTATROW + 16) 428 PUTRATE(uvmexp.pdscans, VMSTATROW + 16, VMSTATCOL, 9); 429 430 PUTRATE(uvmexp.pageins, PAGEROW + 2, PAGECOL + 5, 5); 431 PUTRATE(uvmexp.pdpageouts, PAGEROW + 2, PAGECOL + 10, 5); 432 PUTRATE(uvmexp.swapins, PAGEROW + 2, PAGECOL + 15, 5); 433 PUTRATE(uvmexp.swapouts, PAGEROW + 2, PAGECOL + 20, 5); 434 PUTRATE(uvmexp.pgswapin, PAGEROW + 3, PAGECOL + 5, 5); 435 PUTRATE(uvmexp.pgswapout, PAGEROW + 3, PAGECOL + 10, 5); 436 437 PUTRATE(uvmexp.swtch, GENSTATROW + 1, GENSTATCOL, 4); 438 PUTRATE(uvmexp.traps, GENSTATROW + 1, GENSTATCOL + 4, 6); 439 PUTRATE(uvmexp.syscalls, GENSTATROW + 1, GENSTATCOL + 10, 6); 440 PUTRATE(uvmexp.intrs, GENSTATROW + 1, GENSTATCOL + 16, 5); 441 PUTRATE(uvmexp.softs, GENSTATROW + 1, GENSTATCOL + 21, 5); 442 PUTRATE(uvmexp.faults, GENSTATROW + 1, GENSTATCOL + 26, 6); 443 mvprintw(DISKROW, DISKCOL + 5, " "); 444 for (i = 0, c = 0; i < dk_ndrive && c < MAXDRIVES; i++) 445 if (dk_select[i]) { 446 mvprintw(DISKROW, DISKCOL + 5 + 5 * c, 447 " %4.4s", dr_name[i]); 448 dinfo(i, ++c); 449 } 450 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 451 putint(nchtotal.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9); 452 #define nz(x) ((x) ? (x) : 1) 453 putfloat(nchtotal.ncs_goodhits * 100.0 / nz(s.nchcount), 454 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 455 putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 456 putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), 457 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 458 #undef nz 459 } 460 461 void 462 vmstat_boot(char *args) 463 { 464 copyinfo(&z, &s1); 465 state = BOOT; 466 } 467 468 void 469 vmstat_run(char *args) 470 { 471 copyinfo(&s1, &s2); 472 state = RUN; 473 } 474 475 void 476 vmstat_time (args) 477 char * args; 478 { 479 state = TIME; 480 } 481 482 void 483 vmstat_zero(char *args) 484 { 485 if (state == RUN) 486 getinfo(&s1, RUN); 487 } 488 489 /* calculate number of users on the system */ 490 static int 491 ucount(void) 492 { 493 int nusers = 0, onusers = -1; 494 495 if (ut < 0) 496 return (0); 497 while (read(ut, &utmp, sizeof(utmp))) 498 if (utmp.ut_name[0] != '\0') 499 nusers++; 500 501 if (nusers != onusers) { 502 if (nusers == 1) 503 mvprintw(STATROW, STATCOL + 8, " "); 504 else 505 mvprintw(STATROW, STATCOL + 8, "s"); 506 } 507 lseek(ut, (off_t)0, SEEK_SET); 508 onusers = nusers; 509 return (nusers); 510 } 511 512 static float 513 cputime(int indx) 514 { 515 double t; 516 int i; 517 518 t = 0; 519 for (i = 0; i < CPUSTATES; i++) 520 t += cur.cp_time[i]; 521 if (t == 0.0) 522 t = 1.0; 523 return (cur.cp_time[indx] * 100.0 / t); 524 } 525 526 static void 527 putint(int n, int l, int c, int w) 528 { 529 char b[128]; 530 531 move(l, c); 532 if (n == 0) { 533 hline(' ', w); 534 return; 535 } 536 (void)snprintf(b, sizeof b, "%*d", w, n); 537 if (strlen(b) > w) { 538 hline('*', w); 539 return; 540 } 541 addstr(b); 542 } 543 544 static void 545 putfloat(double f, int l, int c, int w, int d, int nz) 546 { 547 char b[128]; 548 549 move(l, c); 550 if (nz && f == 0.0) { 551 hline(' ', w); 552 return; 553 } 554 (void)snprintf(b, sizeof b, "%*.*f", w, d, f); 555 if (strlen(b) > w) { 556 hline('*', w); 557 return; 558 } 559 addstr(b); 560 } 561 562 static void 563 getinfo(struct Info *s, enum state st) 564 { 565 int mib[2]; 566 size_t size; 567 568 dkreadstats(); 569 NREAD(X_NCHSTATS, &s->nchstats, sizeof s->nchstats); 570 NREAD(X_INTRCNT, s->intrcnt, nintr * LONG); 571 size = sizeof(s->uvmexp); 572 mib[0] = CTL_VM; 573 mib[1] = VM_UVMEXP2; 574 if (sysctl(mib, 2, &s->uvmexp, &size, NULL, 0) < 0) { 575 error("can't get uvmexp: %s\n", strerror(errno)); 576 memset(&s->uvmexp, 0, sizeof(s->uvmexp)); 577 } 578 size = sizeof(s->Total); 579 mib[0] = CTL_VM; 580 mib[1] = VM_METER; 581 if (sysctl(mib, 2, &s->Total, &size, NULL, 0) < 0) { 582 error("Can't get kernel info: %s\n", strerror(errno)); 583 memset(&s->Total, 0, sizeof(s->Total)); 584 } 585 } 586 587 static void 588 allocinfo(struct Info *s) 589 { 590 591 if ((s->intrcnt = malloc(nintr * sizeof(long))) == NULL) { 592 error("malloc failed"); 593 die(0); 594 } 595 } 596 597 static void 598 copyinfo(struct Info *from, struct Info *to) 599 { 600 long *intrcnt; 601 602 intrcnt = to->intrcnt; 603 *to = *from; 604 memmove(to->intrcnt = intrcnt, from->intrcnt, nintr * sizeof (int)); 605 } 606 607 static void 608 dinfo(int dn, int c) 609 { 610 double words, atime; 611 612 c = DISKCOL + c * 5; 613 614 /* time busy in disk activity */ 615 atime = (double)cur.dk_time[dn].tv_sec + 616 ((double)cur.dk_time[dn].tv_usec / (double)1000000); 617 618 words = cur.dk_bytes[dn] / 1024.0; /* # of K transferred */ 619 620 putint((int)((float)cur.dk_seek[dn]/etime+0.5), DISKROW + 1, c, 5); 621 putint((int)((float)cur.dk_xfer[dn]/etime+0.5), DISKROW + 2, c, 5); 622 putint((int)(words/etime + 0.5), DISKROW + 3, c, 5); 623 putfloat(atime*100.0/etime, DISKROW + 4, c, 5, 1, 1); 624 } 625
Indexes created Fri Sep 26 20:09:58 GMT 2025