vmstat.c revision 1.37
1 /* $NetBSD: vmstat.c,v 1.37 2002/01/28 13:20:43 augustss 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 1.37 2002/01/28 13:20:43 augustss 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 u_int64_t time[CPUSTATES]; 66 struct uvmexp_sysctl uvmexp; 67 struct vmtotal Total; 68 struct nchstats nchstats; 69 long nchcount; 70 long *intrcnt; 71 } s, s1, s2, z; 72 73 #define cnt s.Cnt 74 #define oldcnt s1.Cnt 75 #define total s.Total 76 #define nchtotal s.nchstats 77 #define oldnchtotal s1.nchstats 78 79 static enum state { BOOT, TIME, RUN } state = TIME; 80 81 static void allocinfo(struct Info *); 82 static void copyinfo(struct Info *, struct Info *); 83 static float cputime(int); 84 static void dinfo(int, int); 85 static void getinfo(struct Info *, enum state); 86 static void putint(int, int, int, int); 87 static void putfloat(double, int, int, int, int, int); 88 static int ucount(void); 89 90 static int ut; 91 static char buf[26]; 92 static u_int64_t t; 93 static double etime; 94 static float hertz; 95 static int nintr; 96 static long *intrloc; 97 static char **intrname; 98 static int nextintsrow; 99 100 struct utmp utmp; 101 102 WINDOW * 103 openvmstat(void) 104 { 105 106 ut = open(_PATH_UTMP, O_RDONLY); 107 if (ut < 0) 108 error("No utmp"); 109 return (stdscr); 110 } 111 112 void 113 closevmstat(WINDOW *w) 114 { 115 116 (void) close(ut); 117 if (w == NULL) 118 return; 119 wclear(w); 120 wrefresh(w); 121 } 122 123 124 static struct nlist namelist[] = { 125 #define X_TOTAL 0 126 { "_total" }, 127 #define X_NCHSTATS 1 128 { "_nchstats" }, 129 #define X_INTRNAMES 2 130 { "_intrnames" }, 131 #define X_EINTRNAMES 3 132 { "_eintrnames" }, 133 #define X_INTRCNT 4 134 { "_intrcnt" }, 135 #define X_EINTRCNT 5 136 { "_eintrcnt" }, 137 { "" }, 138 }; 139 140 /* 141 * These constants define where the major pieces are laid out 142 */ 143 #define STATROW 0 /* uses 1 row and 68 cols */ 144 #define STATCOL 2 145 #define MEMROW 2 /* uses 4 rows and 31 cols */ 146 #define MEMCOL 0 147 #define PAGEROW 2 /* uses 4 rows and 26 cols */ 148 #define PAGECOL 36 149 #define INTSROW 2 /* uses all rows to bottom and 17 cols */ 150 #define INTSCOL 63 151 #define PROCSROW 7 /* uses 2 rows and 20 cols */ 152 #define PROCSCOL 0 153 #define GENSTATROW 7 /* uses 2 rows and 30 cols */ 154 #define GENSTATCOL 18 155 #define VMSTATROW 7 /* uses 17 rows and 12 cols */ 156 #define VMSTATCOL 48 157 #define GRAPHROW 10 /* uses 3 rows and 51 cols */ 158 #define GRAPHCOL 0 159 #define NAMEIROW 14 /* uses 3 rows and 38 cols */ 160 #define NAMEICOL 0 161 #define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ 162 #define DISKCOL 0 163 164 #define DRIVESPACE 9 /* max # for space */ 165 166 #if DK_NDRIVE > DRIVESPACE 167 #define MAXDRIVES DRIVESPACE /* max # to display */ 168 #else 169 #define MAXDRIVES DK_NDRIVE /* max # to display */ 170 #endif 171 172 int 173 initvmstat(void) 174 { 175 char *intrnamebuf, *cp; 176 int i; 177 static int once = 0; 178 179 if (namelist[0].n_type == 0) { 180 if (kvm_nlist(kd, namelist)) { 181 nlisterr(namelist); 182 return(0); 183 } 184 if (namelist[0].n_type == 0) { 185 error("No namelist"); 186 return(0); 187 } 188 } 189 hertz = stathz ? stathz : hz; 190 if (! dkinit(1)) 191 return(0); 192 if (dk_ndrive && !once) { 193 #define allocate(e, t) \ 194 s./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 195 s1./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 196 s2./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 197 z./**/e = (t *)calloc(dk_ndrive, sizeof (t)); 198 once = 1; 199 #undef allocate 200 } 201 if (nintr == 0) { 202 nintr = (namelist[X_EINTRCNT].n_value - 203 namelist[X_INTRCNT].n_value) / sizeof (long); 204 intrloc = calloc(nintr, sizeof (long)); 205 intrname = calloc(nintr, sizeof (long)); 206 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 207 namelist[X_INTRNAMES].n_value); 208 if (intrnamebuf == NULL || intrname == 0 || intrloc == 0) { 209 error("Out of memory\n"); 210 if (intrnamebuf) 211 free(intrnamebuf); 212 if (intrname) 213 free(intrname); 214 if (intrloc) 215 free(intrloc); 216 nintr = 0; 217 return(0); 218 } 219 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 220 NVAL(X_INTRNAMES)); 221 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 222 intrname[i] = cp; 223 cp += strlen(cp) + 1; 224 } 225 nextintsrow = INTSROW + 2; 226 allocinfo(&s); 227 allocinfo(&s1); 228 allocinfo(&s2); 229 allocinfo(&z); 230 } 231 getinfo(&s2, RUN); 232 copyinfo(&s2, &s1); 233 return(1); 234 } 235 236 void 237 fetchvmstat(void) 238 { 239 time_t now; 240 241 time(&now); 242 strcpy(buf, ctime(&now)); 243 buf[19] = '\0'; 244 getinfo(&s, state); 245 } 246 247 void 248 labelvmstat(void) 249 { 250 int i, j; 251 252 clear(); 253 mvprintw(STATROW, STATCOL + 4, "users Load"); 254 mvprintw(MEMROW, MEMCOL, " memory totals (in KB)"); 255 mvprintw(MEMROW + 1, MEMCOL, " real virtual free"); 256 mvprintw(MEMROW + 2, MEMCOL, "Active"); 257 mvprintw(MEMROW + 3, MEMCOL, "All"); 258 259 mvprintw(PAGEROW, PAGECOL, " PAGING SWAPPING "); 260 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 261 mvprintw(PAGEROW + 2, PAGECOL, "ops"); 262 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 263 264 mvprintw(INTSROW, INTSCOL + 3, " Interrupts"); 265 mvprintw(INTSROW + 1, INTSCOL + 9, "total"); 266 267 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "forks"); 268 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "fkppw"); 269 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "fksvm"); 270 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "pwait"); 271 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "relck"); 272 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "rlkok"); 273 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "noram"); 274 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "ndcpy"); 275 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "fltcp"); 276 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "zfod"); 277 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "cow"); 278 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "fmin"); 279 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "ftarg"); 280 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "itarg"); 281 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "wired"); 282 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "pdfre"); 283 if (LINES - 1 > VMSTATROW + 16) 284 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "pdscn"); 285 286 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 287 288 mvprintw(GRAPHROW, GRAPHCOL, 289 " . %% Sy . %% Us . %% Ni . %% In . %% Id"); 290 mvprintw(PROCSROW, PROCSCOL, "Proc:r d s w"); 291 mvprintw(GRAPHROW + 1, GRAPHCOL, 292 "| | | | | | | | | | |"); 293 294 mvprintw(NAMEIROW, NAMEICOL, "Namei Sys-cache Proc-cache"); 295 mvprintw(NAMEIROW + 1, NAMEICOL, 296 " Calls hits %% hits %%"); 297 mvprintw(DISKROW, DISKCOL, "Discs"); 298 mvprintw(DISKROW + 1, DISKCOL, "seeks"); 299 mvprintw(DISKROW + 2, DISKCOL, "xfers"); 300 mvprintw(DISKROW + 3, DISKCOL, "Kbyte"); 301 mvprintw(DISKROW + 4, DISKCOL, "%%busy"); 302 j = 0; 303 for (i = 0; i < dk_ndrive && j < MAXDRIVES; i++) 304 if (dk_select[i]) { 305 mvprintw(DISKROW, DISKCOL + 5 + 5 * j, 306 " %4.4s", dr_name[j]); 307 j++; 308 } 309 for (i = 0; i < nintr; i++) { 310 if (intrloc[i] == 0) 311 continue; 312 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", intrname[i]); 313 } 314 } 315 316 #define X(fld) {t=s.fld[i]; s.fld[i]-=s1.fld[i]; if(state==TIME) s1.fld[i]=t;} 317 #define Y(fld) {t = s.fld; s.fld -= s1.fld; if(state == TIME) s1.fld = t;} 318 #define Z(fld) {t = s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld; \ 319 if(state == TIME) s1.nchstats.fld = t;} 320 #define PUTRATE(fld, l, c, w) {Y(fld); putint((int)((float)s.fld/etime + 0.5), l, c, w);} 321 #define MAXFAIL 5 322 323 static char cpuchar[CPUSTATES] = { '=' , '>', '-', '%', ' ' }; 324 static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_INTR, CP_IDLE }; 325 326 void 327 showvmstat(void) 328 { 329 float f1, f2; 330 int psiz, inttotal; 331 int i, l, c; 332 static int failcnt = 0; 333 334 if (state == TIME) 335 dkswap(); 336 etime = 0; 337 for(i = 0; i < CPUSTATES; i++) { 338 X(time); 339 etime += s.time[i]; 340 } 341 if (etime < 1.0) { /* < 5 ticks - ignore this trash */ 342 if (failcnt++ >= MAXFAIL) { 343 clear(); 344 mvprintw(2, 10, "The alternate system clock has died!"); 345 mvprintw(3, 10, "Reverting to ``pigs'' display."); 346 move(CMDLINE, 0); 347 refresh(); 348 failcnt = 0; 349 sleep(5); 350 command("pigs"); 351 } 352 return; 353 } 354 failcnt = 0; 355 etime /= hertz; 356 inttotal = 0; 357 for (i = 0; i < nintr; i++) { 358 if (s.intrcnt[i] == 0) 359 continue; 360 if (intrloc[i] == 0) { 361 if (nextintsrow == LINES) 362 continue; 363 intrloc[i] = nextintsrow++; 364 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", 365 intrname[i]); 366 } 367 X(intrcnt); 368 l = (int)((float)s.intrcnt[i]/etime + 0.5); 369 inttotal += l; 370 putint(l, intrloc[i], INTSCOL, 8); 371 } 372 putint(inttotal, INTSROW + 1, INTSCOL, 8); 373 Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss); 374 Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); 375 s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits + 376 nchtotal.ncs_miss + nchtotal.ncs_long; 377 if (state == TIME) 378 s1.nchcount = s.nchcount; 379 380 psiz = 0; 381 f2 = 0.0; 382 383 /* 384 * Last CPU state not calculated yet. 385 */ 386 for (c = 0; c < CPUSTATES; c++) { 387 i = cpuorder[c]; 388 f1 = cputime(i); 389 f2 += f1; 390 l = (int) ((f2 + 1.0) / 2.0) - psiz; 391 if (c == 0) 392 putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0); 393 else 394 putfloat(f1, GRAPHROW, GRAPHCOL + 10 * c + 1, 5, 1, 0); 395 mvhline(GRAPHROW + 2, psiz, cpuchar[c], l); 396 psiz += l; 397 } 398 399 putint(ucount(), STATROW, STATCOL, 3); 400 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 401 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 402 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 403 mvaddstr(STATROW, STATCOL + 53, buf); 404 #define pgtokb(pg) ((pg) * (s.uvmexp.pagesize / 1024)) 405 406 putint(pgtokb(s.uvmexp.active), MEMROW + 2, MEMCOL + 6, 7); 407 putint(pgtokb(s.uvmexp.active + s.uvmexp.swpginuse), /* XXX */ 408 MEMROW + 2, MEMCOL + 16, 7); 409 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free), MEMROW + 3, MEMCOL + 6, 7); 410 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free + s.uvmexp.swpginuse), 411 MEMROW + 3, MEMCOL + 16, 7); 412 putint(pgtokb(s.uvmexp.free), MEMROW + 2, MEMCOL + 24, 7); 413 putint(pgtokb(s.uvmexp.free + s.uvmexp.swpages - s.uvmexp.swpginuse), 414 MEMROW + 3, MEMCOL + 24, 7); 415 putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 416 putint(total.t_dw, PROCSROW + 1, PROCSCOL + 6, 3); 417 putint(total.t_sl, PROCSROW + 1, PROCSCOL + 9, 3); 418 putint(total.t_sw, PROCSROW + 1, PROCSCOL + 12, 3); 419 PUTRATE(uvmexp.forks, VMSTATROW + 0, VMSTATCOL + 3, 6); 420 PUTRATE(uvmexp.forks_ppwait, VMSTATROW + 1, VMSTATCOL + 3, 6); 421 PUTRATE(uvmexp.forks_sharevm, VMSTATROW + 2, VMSTATCOL + 3, 6); 422 PUTRATE(uvmexp.fltpgwait, VMSTATROW + 3, VMSTATCOL + 4, 5); 423 PUTRATE(uvmexp.fltrelck, VMSTATROW + 4, VMSTATCOL + 3, 6); 424 PUTRATE(uvmexp.fltrelckok, VMSTATROW + 5, VMSTATCOL + 3, 6); 425 PUTRATE(uvmexp.fltnoram, VMSTATROW + 6, VMSTATCOL + 3, 6); 426 PUTRATE(uvmexp.fltamcopy, VMSTATROW + 7, VMSTATCOL + 3, 6); 427 PUTRATE(uvmexp.flt_prcopy, VMSTATROW + 8, VMSTATCOL + 3, 6); 428 PUTRATE(uvmexp.flt_przero, VMSTATROW + 9, VMSTATCOL + 3, 6); 429 PUTRATE(uvmexp.flt_acow, VMSTATROW + 10, VMSTATCOL, 9); 430 putint(s.uvmexp.freemin, VMSTATROW + 11, VMSTATCOL, 9); 431 putint(s.uvmexp.freetarg, VMSTATROW + 12, VMSTATCOL, 9); 432 putint(s.uvmexp.inactarg, VMSTATROW + 13, VMSTATCOL, 9); 433 putint(s.uvmexp.wired, VMSTATROW + 14, VMSTATCOL, 9); 434 PUTRATE(uvmexp.pdfreed, VMSTATROW + 15, VMSTATCOL, 9); 435 if (LINES - 1 > VMSTATROW + 16) 436 PUTRATE(uvmexp.pdscans, VMSTATROW + 16, VMSTATCOL, 9); 437 438 PUTRATE(uvmexp.pageins, PAGEROW + 2, PAGECOL + 5, 5); 439 PUTRATE(uvmexp.pdpageouts, PAGEROW + 2, PAGECOL + 10, 5); 440 PUTRATE(uvmexp.swapins, PAGEROW + 2, PAGECOL + 15, 5); 441 PUTRATE(uvmexp.swapouts, PAGEROW + 2, PAGECOL + 20, 5); 442 PUTRATE(uvmexp.pgswapin, PAGEROW + 3, PAGECOL + 5, 5); 443 PUTRATE(uvmexp.pgswapout, PAGEROW + 3, PAGECOL + 10, 5); 444 445 PUTRATE(uvmexp.swtch, GENSTATROW + 1, GENSTATCOL, 4); 446 PUTRATE(uvmexp.traps, GENSTATROW + 1, GENSTATCOL + 4, 6); 447 PUTRATE(uvmexp.syscalls, GENSTATROW + 1, GENSTATCOL + 10, 6); 448 PUTRATE(uvmexp.intrs, GENSTATROW + 1, GENSTATCOL + 16, 5); 449 PUTRATE(uvmexp.softs, GENSTATROW + 1, GENSTATCOL + 21, 5); 450 PUTRATE(uvmexp.faults, GENSTATROW + 1, GENSTATCOL + 26, 6); 451 mvprintw(DISKROW, DISKCOL + 5, " "); 452 for (i = 0, c = 0; i < dk_ndrive && c < MAXDRIVES; i++) 453 if (dk_select[i]) { 454 mvprintw(DISKROW, DISKCOL + 5 + 5 * c, 455 " %4.4s", dr_name[i]); 456 dinfo(i, ++c); 457 } 458 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 459 putint(nchtotal.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9); 460 #define nz(x) ((x) ? (x) : 1) 461 putfloat(nchtotal.ncs_goodhits * 100.0 / nz(s.nchcount), 462 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 463 putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 464 putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), 465 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 466 #undef nz 467 } 468 469 void 470 vmstat_boot(char *args) 471 { 472 copyinfo(&z, &s1); 473 state = BOOT; 474 } 475 476 void 477 vmstat_run(char *args) 478 { 479 copyinfo(&s1, &s2); 480 state = RUN; 481 } 482 483 void 484 vmstat_time (args) 485 char * args; 486 { 487 state = TIME; 488 } 489 490 void 491 vmstat_zero(char *args) 492 { 493 if (state == RUN) 494 getinfo(&s1, RUN); 495 } 496 497 /* calculate number of users on the system */ 498 static int 499 ucount(void) 500 { 501 int nusers = 0, onusers = -1; 502 503 if (ut < 0) 504 return (0); 505 while (read(ut, &utmp, sizeof(utmp))) 506 if (utmp.ut_name[0] != '\0') 507 nusers++; 508 509 if (nusers != onusers) { 510 if (nusers == 1) 511 mvprintw(STATROW, STATCOL + 8, " "); 512 else 513 mvprintw(STATROW, STATCOL + 8, "s"); 514 } 515 lseek(ut, (off_t)0, SEEK_SET); 516 onusers = nusers; 517 return (nusers); 518 } 519 520 static float 521 cputime(int indx) 522 { 523 double t; 524 int i; 525 526 t = 0; 527 for (i = 0; i < CPUSTATES; i++) 528 t += s.time[i]; 529 if (t == 0.0) 530 t = 1.0; 531 return (s.time[indx] * 100.0 / t); 532 } 533 534 static void 535 putint(int n, int l, int c, int w) 536 { 537 char b[128]; 538 539 move(l, c); 540 if (n == 0) { 541 hline(' ', w); 542 return; 543 } 544 (void)snprintf(b, sizeof b, "%*d", w, n); 545 if (strlen(b) > w) { 546 hline('*', w); 547 return; 548 } 549 addstr(b); 550 } 551 552 static void 553 putfloat(double f, int l, int c, int w, int d, int nz) 554 { 555 char b[128]; 556 557 move(l, c); 558 if (nz && f == 0.0) { 559 hline(' ', w); 560 return; 561 } 562 (void)snprintf(b, sizeof b, "%*.*f", w, d, f); 563 if (strlen(b) > w) { 564 hline('*', w); 565 return; 566 } 567 addstr(b); 568 } 569 570 static void 571 getinfo(struct Info *s, enum state st) 572 { 573 int mib[2]; 574 size_t size; 575 576 dkreadstats(); 577 (void) fetch_cptime(s->time); 578 NREAD(X_NCHSTATS, &s->nchstats, sizeof s->nchstats); 579 NREAD(X_INTRCNT, s->intrcnt, nintr * LONG); 580 size = sizeof(s->uvmexp); 581 mib[0] = CTL_VM; 582 mib[1] = VM_UVMEXP2; 583 if (sysctl(mib, 2, &s->uvmexp, &size, NULL, 0) < 0) { 584 error("can't get uvmexp: %s\n", strerror(errno)); 585 memset(&s->uvmexp, 0, sizeof(s->uvmexp)); 586 } 587 size = sizeof(s->Total); 588 mib[0] = CTL_VM; 589 mib[1] = VM_METER; 590 if (sysctl(mib, 2, &s->Total, &size, NULL, 0) < 0) { 591 error("Can't get kernel info: %s\n", strerror(errno)); 592 memset(&s->Total, 0, sizeof(s->Total)); 593 } 594 } 595 596 static void 597 allocinfo(struct Info *s) 598 { 599 600 if ((s->intrcnt = malloc(nintr * sizeof(long))) == NULL) { 601 error("malloc failed"); 602 die(0); 603 } 604 } 605 606 static void 607 copyinfo(struct Info *from, struct Info *to) 608 { 609 long *intrcnt; 610 611 intrcnt = to->intrcnt; 612 *to = *from; 613 memmove(to->intrcnt = intrcnt, from->intrcnt, nintr * sizeof (int)); 614 } 615 616 static void 617 dinfo(int dn, int c) 618 { 619 double words, atime; 620 621 c = DISKCOL + c * 5; 622 623 /* time busy in disk activity */ 624 atime = (double)cur.dk_time[dn].tv_sec + 625 ((double)cur.dk_time[dn].tv_usec / (double)1000000); 626 627 words = cur.dk_bytes[dn] / 1024.0; /* # of K transferred */ 628 629 putint((int)((float)cur.dk_seek[dn]/etime+0.5), DISKROW + 1, c, 5); 630 putint((int)((float)cur.dk_xfer[dn]/etime+0.5), DISKROW + 2, c, 5); 631 putint((int)(words/etime + 0.5), DISKROW + 3, c, 5); 632 putfloat(atime*100.0/etime, DISKROW + 4, c, 5, 1, 1); 633 } 634
Indexes created Tue Sep 23 07:09:52 GMT 2025