1 /* $NetBSD: vmstat.c,v 1.38 2002/05/15 06:43:37 kleink 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 1.38 2002/05/15 06:43:37 kleink 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_NCHSTATS 0 126 { "_nchstats" }, 127 #define X_INTRNAMES 1 128 { "_intrnames" }, 129 #define X_EINTRNAMES 2 130 { "_eintrnames" }, 131 #define X_INTRCNT 3 132 { "_intrcnt" }, 133 #define X_EINTRCNT 4 134 { "_eintrcnt" }, 135 { "" }, 136 }; 137 138 /* 139 * These constants define where the major pieces are laid out 140 */ 141 #define STATROW 0 /* uses 1 row and 68 cols */ 142 #define STATCOL 2 143 #define MEMROW 2 /* uses 4 rows and 31 cols */ 144 #define MEMCOL 0 145 #define PAGEROW 2 /* uses 4 rows and 26 cols */ 146 #define PAGECOL 36 147 #define INTSROW 2 /* uses all rows to bottom and 17 cols */ 148 #define INTSCOL 63 149 #define PROCSROW 7 /* uses 2 rows and 20 cols */ 150 #define PROCSCOL 0 151 #define GENSTATROW 7 /* uses 2 rows and 30 cols */ 152 #define GENSTATCOL 18 153 #define VMSTATROW 7 /* uses 17 rows and 12 cols */ 154 #define VMSTATCOL 48 155 #define GRAPHROW 10 /* uses 3 rows and 51 cols */ 156 #define GRAPHCOL 0 157 #define NAMEIROW 14 /* uses 3 rows and 38 cols */ 158 #define NAMEICOL 0 159 #define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ 160 #define DISKCOL 0 161 162 #define DRIVESPACE 9 /* max # for space */ 163 164 #if DK_NDRIVE > DRIVESPACE 165 #define MAXDRIVES DRIVESPACE /* max # to display */ 166 #else 167 #define MAXDRIVES DK_NDRIVE /* max # to display */ 168 #endif 169 170 int 171 initvmstat(void) 172 { 173 char *intrnamebuf, *cp; 174 int i; 175 static int once = 0; 176 177 if (namelist[0].n_type == 0) { 178 if (kvm_nlist(kd, namelist)) { 179 nlisterr(namelist); 180 return(0); 181 } 182 if (namelist[0].n_type == 0) { 183 error("No namelist"); 184 return(0); 185 } 186 } 187 hertz = stathz ? stathz : hz; 188 if (! dkinit(1)) 189 return(0); 190 if (dk_ndrive && !once) { 191 #define allocate(e, t) \ 192 s./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 193 s1./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 194 s2./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 195 z./**/e = (t *)calloc(dk_ndrive, sizeof (t)); 196 once = 1; 197 #undef allocate 198 } 199 if (nintr == 0) { 200 nintr = (namelist[X_EINTRCNT].n_value - 201 namelist[X_INTRCNT].n_value) / sizeof (long); 202 intrloc = calloc(nintr, sizeof (long)); 203 intrname = calloc(nintr, sizeof (long)); 204 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 205 namelist[X_INTRNAMES].n_value); 206 if (intrnamebuf == NULL || intrname == 0 || intrloc == 0) { 207 error("Out of memory\n"); 208 if (intrnamebuf) 209 free(intrnamebuf); 210 if (intrname) 211 free(intrname); 212 if (intrloc) 213 free(intrloc); 214 nintr = 0; 215 return(0); 216 } 217 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 218 NVAL(X_INTRNAMES)); 219 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 220 intrname[i] = cp; 221 cp += strlen(cp) + 1; 222 } 223 nextintsrow = INTSROW + 2; 224 allocinfo(&s); 225 allocinfo(&s1); 226 allocinfo(&s2); 227 allocinfo(&z); 228 } 229 getinfo(&s2, RUN); 230 copyinfo(&s2, &s1); 231 return(1); 232 } 233 234 void 235 fetchvmstat(void) 236 { 237 time_t now; 238 239 time(&now); 240 strcpy(buf, ctime(&now)); 241 buf[19] = '\0'; 242 getinfo(&s, state); 243 } 244 245 void 246 labelvmstat(void) 247 { 248 int i, j; 249 250 clear(); 251 mvprintw(STATROW, STATCOL + 4, "users Load"); 252 mvprintw(MEMROW, MEMCOL, " memory totals (in KB)"); 253 mvprintw(MEMROW + 1, MEMCOL, " real virtual free"); 254 mvprintw(MEMROW + 2, MEMCOL, "Active"); 255 mvprintw(MEMROW + 3, MEMCOL, "All"); 256 257 mvprintw(PAGEROW, PAGECOL, " PAGING SWAPPING "); 258 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 259 mvprintw(PAGEROW + 2, PAGECOL, "ops"); 260 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 261 262 mvprintw(INTSROW, INTSCOL + 3, " Interrupts"); 263 mvprintw(INTSROW + 1, INTSCOL + 9, "total"); 264 265 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "forks"); 266 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "fkppw"); 267 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "fksvm"); 268 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "pwait"); 269 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "relck"); 270 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "rlkok"); 271 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "noram"); 272 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "ndcpy"); 273 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "fltcp"); 274 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "zfod"); 275 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "cow"); 276 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "fmin"); 277 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "ftarg"); 278 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "itarg"); 279 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "wired"); 280 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "pdfre"); 281 if (LINES - 1 > VMSTATROW + 16) 282 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "pdscn"); 283 284 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 285 286 mvprintw(GRAPHROW, GRAPHCOL, 287 " . %% Sy . %% Us . %% Ni . %% In . %% Id"); 288 mvprintw(PROCSROW, PROCSCOL, "Proc:r d s w"); 289 mvprintw(GRAPHROW + 1, GRAPHCOL, 290 "| | | | | | | | | | |"); 291 292 mvprintw(NAMEIROW, NAMEICOL, "Namei Sys-cache Proc-cache"); 293 mvprintw(NAMEIROW + 1, NAMEICOL, 294 " Calls hits %% hits %%"); 295 mvprintw(DISKROW, DISKCOL, "Discs"); 296 mvprintw(DISKROW + 1, DISKCOL, "seeks"); 297 mvprintw(DISKROW + 2, DISKCOL, "xfers"); 298 mvprintw(DISKROW + 3, DISKCOL, "Kbyte"); 299 mvprintw(DISKROW + 4, DISKCOL, "%%busy"); 300 j = 0; 301 for (i = 0; i < dk_ndrive && j < MAXDRIVES; i++) 302 if (dk_select[i]) { 303 mvprintw(DISKROW, DISKCOL + 5 + 5 * j, 304 " %4.4s", dr_name[j]); 305 j++; 306 } 307 for (i = 0; i < nintr; i++) { 308 if (intrloc[i] == 0) 309 continue; 310 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", intrname[i]); 311 } 312 } 313 314 #define X(fld) {t=s.fld[i]; s.fld[i]-=s1.fld[i]; if(state==TIME) s1.fld[i]=t;} 315 #define Y(fld) {t = s.fld; s.fld -= s1.fld; if(state == TIME) s1.fld = t;} 316 #define Z(fld) {t = s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld; \ 317 if(state == TIME) s1.nchstats.fld = t;} 318 #define PUTRATE(fld, l, c, w) {Y(fld); putint((int)((float)s.fld/etime + 0.5), l, c, w);} 319 #define MAXFAIL 5 320 321 static char cpuchar[CPUSTATES] = { '=' , '>', '-', '%', ' ' }; 322 static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_INTR, CP_IDLE }; 323 324 void 325 showvmstat(void) 326 { 327 float f1, f2; 328 int psiz, inttotal; 329 int i, l, c; 330 static int failcnt = 0; 331 332 if (state == TIME) 333 dkswap(); 334 etime = 0; 335 for(i = 0; i < CPUSTATES; i++) { 336 X(time); 337 etime += s.time[i]; 338 } 339 if (etime < 1.0) { /* < 5 ticks - ignore this trash */ 340 if (failcnt++ >= MAXFAIL) { 341 clear(); 342 mvprintw(2, 10, "The alternate system clock has died!"); 343 mvprintw(3, 10, "Reverting to ``pigs'' display."); 344 move(CMDLINE, 0); 345 refresh(); 346 failcnt = 0; 347 sleep(5); 348 command("pigs"); 349 } 350 return; 351 } 352 failcnt = 0; 353 etime /= hertz; 354 inttotal = 0; 355 for (i = 0; i < nintr; i++) { 356 if (s.intrcnt[i] == 0) 357 continue; 358 if (intrloc[i] == 0) { 359 if (nextintsrow == LINES) 360 continue; 361 intrloc[i] = nextintsrow++; 362 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", 363 intrname[i]); 364 } 365 X(intrcnt); 366 l = (int)((float)s.intrcnt[i]/etime + 0.5); 367 inttotal += l; 368 putint(l, intrloc[i], INTSCOL, 8); 369 } 370 putint(inttotal, INTSROW + 1, INTSCOL, 8); 371 Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss); 372 Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); 373 s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits + 374 nchtotal.ncs_miss + nchtotal.ncs_long; 375 if (state == TIME) 376 s1.nchcount = s.nchcount; 377 378 psiz = 0; 379 f2 = 0.0; 380 381 /* 382 * Last CPU state not calculated yet. 383 */ 384 for (c = 0; c < CPUSTATES; c++) { 385 i = cpuorder[c]; 386 f1 = cputime(i); 387 f2 += f1; 388 l = (int) ((f2 + 1.0) / 2.0) - psiz; 389 if (c == 0) 390 putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0); 391 else 392 putfloat(f1, GRAPHROW, GRAPHCOL + 10 * c + 1, 5, 1, 0); 393 mvhline(GRAPHROW + 2, psiz, cpuchar[c], l); 394 psiz += l; 395 } 396 397 putint(ucount(), STATROW, STATCOL, 3); 398 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 399 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 400 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 401 mvaddstr(STATROW, STATCOL + 53, buf); 402 #define pgtokb(pg) ((pg) * (s.uvmexp.pagesize / 1024)) 403 404 putint(pgtokb(s.uvmexp.active), MEMROW + 2, MEMCOL + 6, 7); 405 putint(pgtokb(s.uvmexp.active + s.uvmexp.swpginuse), /* XXX */ 406 MEMROW + 2, MEMCOL + 16, 7); 407 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free), MEMROW + 3, MEMCOL + 6, 7); 408 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free + s.uvmexp.swpginuse), 409 MEMROW + 3, MEMCOL + 16, 7); 410 putint(pgtokb(s.uvmexp.free), MEMROW + 2, MEMCOL + 24, 7); 411 putint(pgtokb(s.uvmexp.free + s.uvmexp.swpages - s.uvmexp.swpginuse), 412 MEMROW + 3, MEMCOL + 24, 7); 413 putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 414 putint(total.t_dw, PROCSROW + 1, PROCSCOL + 6, 3); 415 putint(total.t_sl, PROCSROW + 1, PROCSCOL + 9, 3); 416 putint(total.t_sw, PROCSROW + 1, PROCSCOL + 12, 3); 417 PUTRATE(uvmexp.forks, VMSTATROW + 0, VMSTATCOL + 3, 6); 418 PUTRATE(uvmexp.forks_ppwait, VMSTATROW + 1, VMSTATCOL + 3, 6); 419 PUTRATE(uvmexp.forks_sharevm, VMSTATROW + 2, VMSTATCOL + 3, 6); 420 PUTRATE(uvmexp.fltpgwait, VMSTATROW + 3, VMSTATCOL + 4, 5); 421 PUTRATE(uvmexp.fltrelck, VMSTATROW + 4, VMSTATCOL + 3, 6); 422 PUTRATE(uvmexp.fltrelckok, VMSTATROW + 5, VMSTATCOL + 3, 6); 423 PUTRATE(uvmexp.fltnoram, VMSTATROW + 6, VMSTATCOL + 3, 6); 424 PUTRATE(uvmexp.fltamcopy, VMSTATROW + 7, VMSTATCOL + 3, 6); 425 PUTRATE(uvmexp.flt_prcopy, VMSTATROW + 8, VMSTATCOL + 3, 6); 426 PUTRATE(uvmexp.flt_przero, VMSTATROW + 9, VMSTATCOL + 3, 6); 427 PUTRATE(uvmexp.flt_acow, VMSTATROW + 10, VMSTATCOL, 9); 428 putint(s.uvmexp.freemin, VMSTATROW + 11, VMSTATCOL, 9); 429 putint(s.uvmexp.freetarg, VMSTATROW + 12, VMSTATCOL, 9); 430 putint(s.uvmexp.inactarg, VMSTATROW + 13, VMSTATCOL, 9); 431 putint(s.uvmexp.wired, VMSTATROW + 14, VMSTATCOL, 9); 432 PUTRATE(uvmexp.pdfreed, VMSTATROW + 15, VMSTATCOL, 9); 433 if (LINES - 1 > VMSTATROW + 16) 434 PUTRATE(uvmexp.pdscans, VMSTATROW + 16, VMSTATCOL, 9); 435 436 PUTRATE(uvmexp.pageins, PAGEROW + 2, PAGECOL + 5, 5); 437 PUTRATE(uvmexp.pdpageouts, PAGEROW + 2, PAGECOL + 10, 5); 438 PUTRATE(uvmexp.swapins, PAGEROW + 2, PAGECOL + 15, 5); 439 PUTRATE(uvmexp.swapouts, PAGEROW + 2, PAGECOL + 20, 5); 440 PUTRATE(uvmexp.pgswapin, PAGEROW + 3, PAGECOL + 5, 5); 441 PUTRATE(uvmexp.pgswapout, PAGEROW + 3, PAGECOL + 10, 5); 442 443 PUTRATE(uvmexp.swtch, GENSTATROW + 1, GENSTATCOL, 4); 444 PUTRATE(uvmexp.traps, GENSTATROW + 1, GENSTATCOL + 4, 6); 445 PUTRATE(uvmexp.syscalls, GENSTATROW + 1, GENSTATCOL + 10, 6); 446 PUTRATE(uvmexp.intrs, GENSTATROW + 1, GENSTATCOL + 16, 5); 447 PUTRATE(uvmexp.softs, GENSTATROW + 1, GENSTATCOL + 21, 5); 448 PUTRATE(uvmexp.faults, GENSTATROW + 1, GENSTATCOL + 26, 6); 449 mvprintw(DISKROW, DISKCOL + 5, " "); 450 for (i = 0, c = 0; i < dk_ndrive && c < MAXDRIVES; i++) 451 if (dk_select[i]) { 452 mvprintw(DISKROW, DISKCOL + 5 + 5 * c, 453 " %4.4s", dr_name[i]); 454 dinfo(i, ++c); 455 } 456 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 457 putint(nchtotal.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9); 458 #define nz(x) ((x) ? (x) : 1) 459 putfloat(nchtotal.ncs_goodhits * 100.0 / nz(s.nchcount), 460 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 461 putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 462 putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), 463 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 464 #undef nz 465 } 466 467 void 468 vmstat_boot(char *args) 469 { 470 copyinfo(&z, &s1); 471 state = BOOT; 472 } 473 474 void 475 vmstat_run(char *args) 476 { 477 copyinfo(&s1, &s2); 478 state = RUN; 479 } 480 481 void 482 vmstat_time (args) 483 char * args; 484 { 485 state = TIME; 486 } 487 488 void 489 vmstat_zero(char *args) 490 { 491 if (state == RUN) 492 getinfo(&s1, RUN); 493 } 494 495 /* calculate number of users on the system */ 496 static int 497 ucount(void) 498 { 499 int nusers = 0, onusers = -1; 500 501 if (ut < 0) 502 return (0); 503 while (read(ut, &utmp, sizeof(utmp))) 504 if (utmp.ut_name[0] != '\0') 505 nusers++; 506 507 if (nusers != onusers) { 508 if (nusers == 1) 509 mvprintw(STATROW, STATCOL + 8, " "); 510 else 511 mvprintw(STATROW, STATCOL + 8, "s"); 512 } 513 lseek(ut, (off_t)0, SEEK_SET); 514 onusers = nusers; 515 return (nusers); 516 } 517 518 static float 519 cputime(int indx) 520 { 521 double t; 522 int i; 523 524 t = 0; 525 for (i = 0; i < CPUSTATES; i++) 526 t += s.time[i]; 527 if (t == 0.0) 528 t = 1.0; 529 return (s.time[indx] * 100.0 / t); 530 } 531 532 static void 533 putint(int n, int l, int c, int w) 534 { 535 char b[128]; 536 537 move(l, c); 538 if (n == 0) { 539 hline(' ', w); 540 return; 541 } 542 (void)snprintf(b, sizeof b, "%*d", w, n); 543 if (strlen(b) > w) { 544 hline('*', w); 545 return; 546 } 547 addstr(b); 548 } 549 550 static void 551 putfloat(double f, int l, int c, int w, int d, int nz) 552 { 553 char b[128]; 554 555 move(l, c); 556 if (nz && f == 0.0) { 557 hline(' ', w); 558 return; 559 } 560 (void)snprintf(b, sizeof b, "%*.*f", w, d, f); 561 if (strlen(b) > w) { 562 hline('*', w); 563 return; 564 } 565 addstr(b); 566 } 567 568 static void 569 getinfo(struct Info *s, enum state st) 570 { 571 int mib[2]; 572 size_t size; 573 574 dkreadstats(); 575 (void) fetch_cptime(s->time); 576 NREAD(X_NCHSTATS, &s->nchstats, sizeof s->nchstats); 577 NREAD(X_INTRCNT, s->intrcnt, nintr * LONG); 578 size = sizeof(s->uvmexp); 579 mib[0] = CTL_VM; 580 mib[1] = VM_UVMEXP2; 581 if (sysctl(mib, 2, &s->uvmexp, &size, NULL, 0) < 0) { 582 error("can't get uvmexp: %s\n", strerror(errno)); 583 memset(&s->uvmexp, 0, sizeof(s->uvmexp)); 584 } 585 size = sizeof(s->Total); 586 mib[0] = CTL_VM; 587 mib[1] = VM_METER; 588 if (sysctl(mib, 2, &s->Total, &size, NULL, 0) < 0) { 589 error("Can't get kernel info: %s\n", strerror(errno)); 590 memset(&s->Total, 0, sizeof(s->Total)); 591 } 592 } 593 594 static void 595 allocinfo(struct Info *s) 596 { 597 598 if ((s->intrcnt = malloc(nintr * sizeof(long))) == NULL) { 599 error("malloc failed"); 600 die(0); 601 } 602 } 603 604 static void 605 copyinfo(struct Info *from, struct Info *to) 606 { 607 long *intrcnt; 608 609 intrcnt = to->intrcnt; 610 *to = *from; 611 memmove(to->intrcnt = intrcnt, from->intrcnt, nintr * sizeof (int)); 612 } 613 614 static void 615 dinfo(int dn, int c) 616 { 617 double words, atime; 618 619 c = DISKCOL + c * 5; 620 621 /* time busy in disk activity */ 622 atime = (double)cur.dk_time[dn].tv_sec + 623 ((double)cur.dk_time[dn].tv_usec / (double)1000000); 624 625 words = cur.dk_bytes[dn] / 1024.0; /* # of K transferred */ 626 627 putint((int)((float)cur.dk_seek[dn]/etime+0.5), DISKROW + 1, c, 5); 628 putint((int)((float)cur.dk_xfer[dn]/etime+0.5), DISKROW + 2, c, 5); 629 putint((int)(words/etime + 0.5), DISKROW + 3, c, 5); 630 putfloat(atime*100.0/etime, DISKROW + 4, c, 5, 1, 1); 631 } 632