vmstat.c revision 1.41
1 /* $NetBSD: vmstat.c,v 1.41 2002/08/08 17:06:32 abs 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 1.41 2002/08/08 17:06:32 abs 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 <util.h> 59 60 #include "systat.h" 61 #include "extern.h" 62 #include "dkstats.h" 63 #include "utmpentry.h" 64 65 static struct Info { 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 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 WINDOW * 100 openvmstat(void) 101 { 102 return (stdscr); 103 } 104 105 void 106 closevmstat(WINDOW *w) 107 { 108 109 if (w == NULL) 110 return; 111 wclear(w); 112 wrefresh(w); 113 } 114 115 116 static struct nlist namelist[] = { 117 #define X_NCHSTATS 0 118 { "_nchstats" }, 119 #define X_INTRNAMES 1 120 { "_intrnames" }, 121 #define X_EINTRNAMES 2 122 { "_eintrnames" }, 123 #define X_INTRCNT 3 124 { "_intrcnt" }, 125 #define X_EINTRCNT 4 126 { "_eintrcnt" }, 127 { "" }, 128 }; 129 130 /* 131 * These constants define where the major pieces are laid out 132 */ 133 #define STATROW 0 /* uses 1 row and 68 cols */ 134 #define STATCOL 2 135 #define MEMROW 2 /* uses 4 rows and 31 cols */ 136 #define MEMCOL 0 137 #define PAGEROW 2 /* uses 4 rows and 26 cols */ 138 #define PAGECOL 36 139 #define INTSROW 2 /* uses all rows to bottom and 17 cols */ 140 #define INTSCOL 63 141 #define PROCSROW 7 /* uses 2 rows and 20 cols */ 142 #define PROCSCOL 0 143 #define GENSTATROW 7 /* uses 2 rows and 30 cols */ 144 #define GENSTATCOL 18 145 #define VMSTATROW 7 /* uses 17 rows and 12 cols */ 146 #define VMSTATCOL 48 147 #define GRAPHROW 10 /* uses 3 rows and 51 cols */ 148 #define GRAPHCOL 0 149 #define NAMEIROW 14 /* uses 3 rows and 38 cols */ 150 #define NAMEICOL 0 151 #define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ 152 #define DISKCOL 0 153 154 #define DRIVESPACE 9 /* max # for space */ 155 156 #if DK_NDRIVE > DRIVESPACE 157 #define MAXDRIVES DRIVESPACE /* max # to display */ 158 #else 159 #define MAXDRIVES DK_NDRIVE /* max # to display */ 160 #endif 161 162 int 163 initvmstat(void) 164 { 165 char *intrnamebuf, *cp; 166 int i; 167 static int once = 0; 168 169 if (namelist[0].n_type == 0) { 170 if (kvm_nlist(kd, namelist)) { 171 nlisterr(namelist); 172 return(0); 173 } 174 if (namelist[0].n_type == 0) { 175 error("No namelist"); 176 return(0); 177 } 178 } 179 hertz = stathz ? stathz : hz; 180 if (! dkinit(1)) 181 return(0); 182 if (dk_ndrive && !once) { 183 #define allocate(e, t) \ 184 s./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 185 s1./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 186 s2./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 187 z./**/e = (t *)calloc(dk_ndrive, sizeof (t)); 188 once = 1; 189 #undef allocate 190 } 191 if (nintr == 0) { 192 nintr = (namelist[X_EINTRCNT].n_value - 193 namelist[X_INTRCNT].n_value) / sizeof (long); 194 intrloc = calloc(nintr, sizeof (long)); 195 intrname = calloc(nintr, sizeof (long)); 196 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 197 namelist[X_INTRNAMES].n_value); 198 if (intrnamebuf == NULL || intrname == 0 || intrloc == 0) { 199 error("Out of memory\n"); 200 if (intrnamebuf) 201 free(intrnamebuf); 202 if (intrname) 203 free(intrname); 204 if (intrloc) 205 free(intrloc); 206 nintr = 0; 207 return(0); 208 } 209 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 210 NVAL(X_INTRNAMES)); 211 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 212 intrname[i] = cp; 213 cp += strlen(cp) + 1; 214 } 215 nextintsrow = INTSROW + 2; 216 allocinfo(&s); 217 allocinfo(&s1); 218 allocinfo(&s2); 219 allocinfo(&z); 220 } 221 getinfo(&s2, RUN); 222 copyinfo(&s2, &s1); 223 return(1); 224 } 225 226 void 227 fetchvmstat(void) 228 { 229 time_t now; 230 231 time(&now); 232 strcpy(buf, ctime(&now)); 233 buf[19] = '\0'; 234 getinfo(&s, state); 235 } 236 237 void 238 labelvmstat(void) 239 { 240 int i, j; 241 242 clear(); 243 mvprintw(STATROW, STATCOL + 4, "users Load"); 244 mvprintw(MEMROW, MEMCOL, " memory totals (in KB)"); 245 mvprintw(MEMROW + 1, MEMCOL, " real virtual free"); 246 mvprintw(MEMROW + 2, MEMCOL, "Active"); 247 mvprintw(MEMROW + 3, MEMCOL, "All"); 248 249 mvprintw(PAGEROW, PAGECOL, " PAGING SWAPPING "); 250 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 251 mvprintw(PAGEROW + 2, PAGECOL, "ops"); 252 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 253 254 mvprintw(INTSROW, INTSCOL + 3, " Interrupts"); 255 mvprintw(INTSROW + 1, INTSCOL + 9, "total"); 256 257 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "forks"); 258 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "fkppw"); 259 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "fksvm"); 260 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "pwait"); 261 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "relck"); 262 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "rlkok"); 263 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "noram"); 264 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "ndcpy"); 265 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "fltcp"); 266 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "zfod"); 267 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "cow"); 268 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "fmin"); 269 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "ftarg"); 270 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "itarg"); 271 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "wired"); 272 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "pdfre"); 273 if (LINES - 1 > VMSTATROW + 16) 274 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "pdscn"); 275 276 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 277 278 mvprintw(GRAPHROW, GRAPHCOL, 279 " . %% Sy . %% Us . %% Ni . %% In . %% Id"); 280 mvprintw(PROCSROW, PROCSCOL, "Proc:r d s w"); 281 mvprintw(GRAPHROW + 1, GRAPHCOL, 282 "| | | | | | | | | | |"); 283 284 mvprintw(NAMEIROW, NAMEICOL, "Namei Sys-cache Proc-cache"); 285 mvprintw(NAMEIROW + 1, NAMEICOL, 286 " Calls hits %% hits %%"); 287 mvprintw(DISKROW, DISKCOL, "Discs"); 288 mvprintw(DISKROW + 1, DISKCOL, "seeks"); 289 mvprintw(DISKROW + 2, DISKCOL, "xfers"); 290 mvprintw(DISKROW + 3, DISKCOL, "bytes"); 291 mvprintw(DISKROW + 4, DISKCOL, "%%busy"); 292 j = 0; 293 for (i = 0; i < dk_ndrive && j < MAXDRIVES; i++) 294 if (dk_select[i]) { 295 mvprintw(DISKROW, DISKCOL + 5 + 5 * j, 296 " %4.4s", dr_name[j]); 297 j++; 298 } 299 for (i = 0; i < nintr; i++) { 300 if (intrloc[i] == 0) 301 continue; 302 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", intrname[i]); 303 } 304 } 305 306 #define X(fld) {t=s.fld[i]; s.fld[i]-=s1.fld[i]; if(state==TIME) s1.fld[i]=t;} 307 #define Y(fld) {t = s.fld; s.fld -= s1.fld; if(state == TIME) s1.fld = t;} 308 #define Z(fld) {t = s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld; \ 309 if(state == TIME) s1.nchstats.fld = t;} 310 #define PUTRATE(fld, l, c, w) {Y(fld); putint((int)((float)s.fld/etime + 0.5), l, c, w);} 311 #define MAXFAIL 5 312 313 static char cpuchar[CPUSTATES] = { '=' , '>', '-', '%', ' ' }; 314 static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_INTR, CP_IDLE }; 315 316 void 317 showvmstat(void) 318 { 319 float f1, f2; 320 int psiz, inttotal; 321 int i, l, c; 322 static int failcnt = 0; 323 324 if (state == TIME) 325 dkswap(); 326 etime = cur.cp_etime; 327 if ((etime * hertz) < 1.0) { /* < 5 ticks - ignore this trash */ 328 if (failcnt++ >= MAXFAIL) { 329 clear(); 330 mvprintw(2, 10, "The alternate system clock has died!"); 331 mvprintw(3, 10, "Reverting to ``pigs'' display."); 332 move(CMDLINE, 0); 333 refresh(); 334 failcnt = 0; 335 sleep(5); 336 command("pigs"); 337 } 338 return; 339 } 340 failcnt = 0; 341 inttotal = 0; 342 for (i = 0; i < nintr; i++) { 343 if (s.intrcnt[i] == 0) 344 continue; 345 if (intrloc[i] == 0) { 346 if (nextintsrow == LINES) 347 continue; 348 intrloc[i] = nextintsrow++; 349 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", 350 intrname[i]); 351 } 352 X(intrcnt); 353 l = (int)((float)s.intrcnt[i]/etime + 0.5); 354 inttotal += l; 355 putint(l, intrloc[i], INTSCOL, 8); 356 } 357 putint(inttotal, INTSROW + 1, INTSCOL, 8); 358 Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss); 359 Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); 360 s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits + 361 nchtotal.ncs_miss + nchtotal.ncs_long; 362 if (state == TIME) 363 s1.nchcount = s.nchcount; 364 365 psiz = 0; 366 f2 = 0.0; 367 368 /* 369 * Last CPU state not calculated yet. 370 */ 371 for (c = 0; c < CPUSTATES; c++) { 372 i = cpuorder[c]; 373 f1 = cputime(i); 374 f2 += f1; 375 l = (int) ((f2 + 1.0) / 2.0) - psiz; 376 if (c == 0) 377 putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0); 378 else 379 putfloat(f1, GRAPHROW, GRAPHCOL + 10 * c + 1, 5, 1, 0); 380 mvhline(GRAPHROW + 2, psiz, cpuchar[c], l); 381 psiz += l; 382 } 383 384 putint(ucount(), STATROW, STATCOL, 3); 385 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 386 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 387 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 388 mvaddstr(STATROW, STATCOL + 53, buf); 389 #define pgtokb(pg) ((pg) * (s.uvmexp.pagesize / 1024)) 390 391 putint(pgtokb(s.uvmexp.active), MEMROW + 2, MEMCOL + 6, 7); 392 putint(pgtokb(s.uvmexp.active + s.uvmexp.swpginuse), /* XXX */ 393 MEMROW + 2, MEMCOL + 16, 7); 394 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free), MEMROW + 3, MEMCOL + 6, 7); 395 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free + s.uvmexp.swpginuse), 396 MEMROW + 3, MEMCOL + 16, 7); 397 putint(pgtokb(s.uvmexp.free), MEMROW + 2, MEMCOL + 24, 7); 398 putint(pgtokb(s.uvmexp.free + s.uvmexp.swpages - s.uvmexp.swpginuse), 399 MEMROW + 3, MEMCOL + 24, 7); 400 putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 401 putint(total.t_dw, PROCSROW + 1, PROCSCOL + 6, 3); 402 putint(total.t_sl, PROCSROW + 1, PROCSCOL + 9, 3); 403 putint(total.t_sw, PROCSROW + 1, PROCSCOL + 12, 3); 404 PUTRATE(uvmexp.forks, VMSTATROW + 0, VMSTATCOL + 3, 6); 405 PUTRATE(uvmexp.forks_ppwait, VMSTATROW + 1, VMSTATCOL + 3, 6); 406 PUTRATE(uvmexp.forks_sharevm, VMSTATROW + 2, VMSTATCOL + 3, 6); 407 PUTRATE(uvmexp.fltpgwait, VMSTATROW + 3, VMSTATCOL + 4, 5); 408 PUTRATE(uvmexp.fltrelck, VMSTATROW + 4, VMSTATCOL + 3, 6); 409 PUTRATE(uvmexp.fltrelckok, VMSTATROW + 5, VMSTATCOL + 3, 6); 410 PUTRATE(uvmexp.fltnoram, VMSTATROW + 6, VMSTATCOL + 3, 6); 411 PUTRATE(uvmexp.fltamcopy, VMSTATROW + 7, VMSTATCOL + 3, 6); 412 PUTRATE(uvmexp.flt_prcopy, VMSTATROW + 8, VMSTATCOL + 3, 6); 413 PUTRATE(uvmexp.flt_przero, VMSTATROW + 9, VMSTATCOL + 3, 6); 414 PUTRATE(uvmexp.flt_acow, VMSTATROW + 10, VMSTATCOL, 9); 415 putint(s.uvmexp.freemin, VMSTATROW + 11, VMSTATCOL, 9); 416 putint(s.uvmexp.freetarg, VMSTATROW + 12, VMSTATCOL, 9); 417 putint(s.uvmexp.inactarg, VMSTATROW + 13, VMSTATCOL, 9); 418 putint(s.uvmexp.wired, VMSTATROW + 14, VMSTATCOL, 9); 419 PUTRATE(uvmexp.pdfreed, VMSTATROW + 15, VMSTATCOL, 9); 420 if (LINES - 1 > VMSTATROW + 16) 421 PUTRATE(uvmexp.pdscans, VMSTATROW + 16, VMSTATCOL, 9); 422 423 PUTRATE(uvmexp.pageins, PAGEROW + 2, PAGECOL + 5, 5); 424 PUTRATE(uvmexp.pdpageouts, PAGEROW + 2, PAGECOL + 10, 5); 425 PUTRATE(uvmexp.swapins, PAGEROW + 2, PAGECOL + 15, 5); 426 PUTRATE(uvmexp.swapouts, PAGEROW + 2, PAGECOL + 20, 5); 427 PUTRATE(uvmexp.pgswapin, PAGEROW + 3, PAGECOL + 5, 5); 428 PUTRATE(uvmexp.pgswapout, PAGEROW + 3, PAGECOL + 10, 5); 429 430 PUTRATE(uvmexp.swtch, GENSTATROW + 1, GENSTATCOL, 4); 431 PUTRATE(uvmexp.traps, GENSTATROW + 1, GENSTATCOL + 4, 6); 432 PUTRATE(uvmexp.syscalls, GENSTATROW + 1, GENSTATCOL + 10, 6); 433 PUTRATE(uvmexp.intrs, GENSTATROW + 1, GENSTATCOL + 16, 5); 434 PUTRATE(uvmexp.softs, GENSTATROW + 1, GENSTATCOL + 21, 5); 435 PUTRATE(uvmexp.faults, GENSTATROW + 1, GENSTATCOL + 26, 6); 436 mvprintw(DISKROW, DISKCOL + 5, " "); 437 for (i = 0, c = 0; i < dk_ndrive && c < MAXDRIVES; i++) 438 if (dk_select[i]) { 439 mvprintw(DISKROW, DISKCOL + 5 + 5 * c, 440 " %4.4s", dr_name[i]); 441 dinfo(i, ++c); 442 } 443 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 444 putint(nchtotal.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9); 445 #define nz(x) ((x) ? (x) : 1) 446 putfloat(nchtotal.ncs_goodhits * 100.0 / nz(s.nchcount), 447 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 448 putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 449 putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), 450 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 451 #undef nz 452 } 453 454 void 455 vmstat_boot(char *args) 456 { 457 copyinfo(&z, &s1); 458 state = BOOT; 459 } 460 461 void 462 vmstat_run(char *args) 463 { 464 copyinfo(&s1, &s2); 465 state = RUN; 466 } 467 468 void 469 vmstat_time (args) 470 char * args; 471 { 472 state = TIME; 473 } 474 475 void 476 vmstat_zero(char *args) 477 { 478 if (state == RUN) 479 getinfo(&s1, RUN); 480 } 481 482 /* calculate number of users on the system */ 483 static int 484 ucount(void) 485 { 486 static int onusers = -1; 487 static struct utmpentry *oehead = NULL; 488 int nusers = 0; 489 struct utmpentry *ehead; 490 491 nusers = getutentries(NULL, &ehead); 492 if (oehead != ehead) { 493 freeutentries(oehead); 494 oehead = ehead; 495 } 496 497 if (nusers != onusers) { 498 if (nusers == 1) 499 mvprintw(STATROW, STATCOL + 8, " "); 500 else 501 mvprintw(STATROW, STATCOL + 8, "s"); 502 } 503 onusers = nusers; 504 return (nusers); 505 } 506 507 static float 508 cputime(int indx) 509 { 510 double t; 511 int i; 512 513 t = 0; 514 for (i = 0; i < CPUSTATES; i++) 515 t += cur.cp_time[i]; 516 if (t == 0.0) 517 t = 1.0; 518 return (cur.cp_time[indx] * 100.0 / t); 519 } 520 521 static void 522 puthumanint(int n, int l, int c, int w) 523 { 524 char b[128]; 525 526 move(l, c); 527 if (n == 0) { 528 hline(' ', w); 529 return; 530 } 531 if (humanize_number(b, w, (int64_t)n * 1024, "", HN_AUTOSCALE, 532 HN_NOSPACE) == -1 ) { 533 hline('*', w); 534 return; 535 } 536 hline(' ', w - strlen(b)); 537 move(l, c + w - strlen(b)); 538 addstr(b); 539 } 540 541 static void 542 putint(int n, int l, int c, int w) 543 { 544 char b[128]; 545 546 move(l, c); 547 if (n == 0) { 548 hline(' ', w); 549 return; 550 } 551 (void)snprintf(b, sizeof b, "%*d", w, n); 552 if (strlen(b) > w) { 553 hline('*', w); 554 return; 555 } 556 addstr(b); 557 } 558 559 static void 560 putfloat(double f, int l, int c, int w, int d, int nz) 561 { 562 char b[128]; 563 564 move(l, c); 565 if (nz && f == 0.0) { 566 hline(' ', w); 567 return; 568 } 569 (void)snprintf(b, sizeof b, "%*.*f", w, d, f); 570 if (strlen(b) > w) { 571 hline('*', w); 572 return; 573 } 574 addstr(b); 575 } 576 577 static void 578 getinfo(struct Info *s, enum state st) 579 { 580 int mib[2]; 581 size_t size; 582 583 dkreadstats(); 584 NREAD(X_NCHSTATS, &s->nchstats, sizeof s->nchstats); 585 NREAD(X_INTRCNT, s->intrcnt, nintr * LONG); 586 size = sizeof(s->uvmexp); 587 mib[0] = CTL_VM; 588 mib[1] = VM_UVMEXP2; 589 if (sysctl(mib, 2, &s->uvmexp, &size, NULL, 0) < 0) { 590 error("can't get uvmexp: %s\n", strerror(errno)); 591 memset(&s->uvmexp, 0, sizeof(s->uvmexp)); 592 } 593 size = sizeof(s->Total); 594 mib[0] = CTL_VM; 595 mib[1] = VM_METER; 596 if (sysctl(mib, 2, &s->Total, &size, NULL, 0) < 0) { 597 error("Can't get kernel info: %s\n", strerror(errno)); 598 memset(&s->Total, 0, sizeof(s->Total)); 599 } 600 } 601 602 static void 603 allocinfo(struct Info *s) 604 { 605 606 if ((s->intrcnt = malloc(nintr * sizeof(long))) == NULL) { 607 error("malloc failed"); 608 die(0); 609 } 610 } 611 612 static void 613 copyinfo(struct Info *from, struct Info *to) 614 { 615 long *intrcnt; 616 617 intrcnt = to->intrcnt; 618 *to = *from; 619 memmove(to->intrcnt = intrcnt, from->intrcnt, nintr * sizeof (int)); 620 } 621 622 static void 623 dinfo(int dn, int c) 624 { 625 double words, atime; 626 627 c = DISKCOL + c * 5; 628 629 /* time busy in disk activity */ 630 atime = (double)cur.dk_time[dn].tv_sec + 631 ((double)cur.dk_time[dn].tv_usec / (double)1000000); 632 633 words = cur.dk_bytes[dn] / 1024.0; /* # of K transferred */ 634 635 putint((int)((float)cur.dk_seek[dn]/etime+0.5), DISKROW + 1, c, 5); 636 putint((int)((float)cur.dk_xfer[dn]/etime+0.5), DISKROW + 2, c, 5); 637 puthumanint((int)(words/etime + 0.5), DISKROW + 3, c, 5); 638 if (atime*100.0/etime >= 100) 639 putint(100, DISKROW + 4, c, 5); 640 else 641 putfloat(atime*100.0/etime, DISKROW + 4, c, 5, 1, 1); 642 } 643
Indexes created Tue Sep 23 07:09:52 GMT 2025