vmstat.c revision 1.31.2.1
1 /* $NetBSD: vmstat.c,v 1.31.2.1 2000/09/01 16:38:18 ad 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 1.31.2.1 2000/09/01 16:38:18 ad 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/buf.h> 51 #include <sys/stat.h> 52 #include <sys/time.h> 53 #include <sys/user.h> 54 #include <sys/proc.h> 55 #include <sys/namei.h> 56 #include <sys/sched.h> 57 #include <sys/sysctl.h> 58 59 #include <vm/vm.h> 60 61 #include <uvm/uvm_extern.h> 62 63 #include <ctype.h> 64 #include <err.h> 65 #include <nlist.h> 66 #include <paths.h> 67 #include <signal.h> 68 #include <stdlib.h> 69 #include <string.h> 70 #include <utmp.h> 71 #include <unistd.h> 72 73 #include "systat.h" 74 #include "extern.h" 75 76 static struct Info { 77 u_int64_t time[CPUSTATES]; 78 struct uvmexp uvmexp; 79 struct vmtotal Total; 80 struct nchstats nchstats; 81 long nchcount; 82 long *intrcnt; 83 } s, s1, s2, z; 84 85 #include "dkstats.h" 86 extern struct _disk cur; 87 88 89 #define cnt s.Cnt 90 #define oldcnt s1.Cnt 91 #define total s.Total 92 #define nchtotal s.nchstats 93 #define oldnchtotal s1.nchstats 94 95 static enum state { BOOT, TIME, RUN } state = TIME; 96 97 static void allocinfo(struct Info *); 98 static void copyinfo(struct Info *, struct Info *); 99 static float cputime(int); 100 static void dinfo(int, int); 101 static void getinfo(struct Info *, enum state); 102 static void putint(int, int, int, int); 103 static void putfloat(double, int, int, int, int, int); 104 static int ucount(void); 105 106 static int ut; 107 static char buf[26]; 108 static u_int64_t t; 109 static double etime; 110 static float hertz; 111 static int nintr; 112 static long *intrloc; 113 static char **intrname; 114 static int nextintsrow; 115 116 struct utmp utmp; 117 118 WINDOW * 119 openvmstat(void) 120 { 121 122 ut = open(_PATH_UTMP, O_RDONLY); 123 if (ut < 0) 124 error("No utmp"); 125 return (stdscr); 126 } 127 128 void 129 closevmstat(WINDOW *w) 130 { 131 132 (void) close(ut); 133 if (w == NULL) 134 return; 135 wclear(w); 136 wrefresh(w); 137 } 138 139 140 static struct nlist namelist[] = { 141 #define X_TOTAL 0 142 { "_total" }, 143 #define X_NCHSTATS 1 144 { "_nchstats" }, 145 #define X_INTRNAMES 2 146 { "_intrnames" }, 147 #define X_EINTRNAMES 3 148 { "_eintrnames" }, 149 #define X_INTRCNT 4 150 { "_intrcnt" }, 151 #define X_EINTRCNT 5 152 { "_eintrcnt" }, 153 { "" }, 154 }; 155 156 /* 157 * These constants define where the major pieces are laid out 158 */ 159 #define STATROW 0 /* uses 1 row and 68 cols */ 160 #define STATCOL 2 161 #define MEMROW 2 /* uses 4 rows and 31 cols */ 162 #define MEMCOL 0 163 #define PAGEROW 2 /* uses 4 rows and 26 cols */ 164 #define PAGECOL 36 165 #define INTSROW 2 /* uses all rows to bottom and 17 cols */ 166 #define INTSCOL 63 167 #define PROCSROW 7 /* uses 2 rows and 20 cols */ 168 #define PROCSCOL 0 169 #define GENSTATROW 7 /* uses 2 rows and 30 cols */ 170 #define GENSTATCOL 20 171 #define VMSTATROW 7 /* uses 17 rows and 12 cols */ 172 #define VMSTATCOL 48 173 #define GRAPHROW 10 /* uses 3 rows and 51 cols */ 174 #define GRAPHCOL 0 175 #define NAMEIROW 14 /* uses 3 rows and 38 cols */ 176 #define NAMEICOL 0 177 #define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ 178 #define DISKCOL 0 179 180 #define DRIVESPACE 9 /* max # for space */ 181 182 #if DK_NDRIVE > DRIVESPACE 183 #define MAXDRIVES DRIVESPACE /* max # to display */ 184 #else 185 #define MAXDRIVES DK_NDRIVE /* max # to display */ 186 #endif 187 188 int 189 initvmstat(void) 190 { 191 char *intrnamebuf, *cp; 192 int i; 193 static int once = 0; 194 extern gid_t egid; 195 196 if (namelist[0].n_type == 0) { 197 if (kvm_nlist(kd, namelist)) { 198 nlisterr(namelist); 199 return(0); 200 } 201 if (namelist[0].n_type == 0) { 202 error("No namelist"); 203 return(0); 204 } 205 } 206 hertz = stathz ? stathz : hz; 207 if (! dkinit(1, egid)) 208 return(0); 209 if (dk_ndrive && !once) { 210 #define allocate(e, t) \ 211 s./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 212 s1./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 213 s2./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 214 z./**/e = (t *)calloc(dk_ndrive, sizeof (t)); 215 once = 1; 216 #undef allocate 217 } 218 if (nintr == 0) { 219 nintr = (namelist[X_EINTRCNT].n_value - 220 namelist[X_INTRCNT].n_value) / sizeof (long); 221 intrloc = calloc(nintr, sizeof (long)); 222 intrname = calloc(nintr, sizeof (long)); 223 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 224 namelist[X_INTRNAMES].n_value); 225 if (intrnamebuf == NULL || intrname == 0 || intrloc == 0) { 226 error("Out of memory\n"); 227 if (intrnamebuf) 228 free(intrnamebuf); 229 if (intrname) 230 free(intrname); 231 if (intrloc) 232 free(intrloc); 233 nintr = 0; 234 return(0); 235 } 236 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 237 NVAL(X_INTRNAMES)); 238 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 239 intrname[i] = cp; 240 cp += strlen(cp) + 1; 241 } 242 nextintsrow = INTSROW + 2; 243 allocinfo(&s); 244 allocinfo(&s1); 245 allocinfo(&s2); 246 allocinfo(&z); 247 } 248 getinfo(&s2, RUN); 249 copyinfo(&s2, &s1); 250 return(1); 251 } 252 253 void 254 fetchvmstat(void) 255 { 256 time_t now; 257 258 time(&now); 259 strcpy(buf, ctime(&now)); 260 buf[19] = '\0'; 261 getinfo(&s, state); 262 } 263 264 void 265 labelvmstat(void) 266 { 267 int i, j; 268 269 clear(); 270 mvprintw(STATROW, STATCOL + 4, "users Load"); 271 mvprintw(MEMROW, MEMCOL, " memory totals (in KB)"); 272 mvprintw(MEMROW + 1, MEMCOL, " real virtual free"); 273 mvprintw(MEMROW + 2, MEMCOL, "Active"); 274 mvprintw(MEMROW + 3, MEMCOL, "All"); 275 276 mvprintw(PAGEROW, PAGECOL, " PAGING SWAPPING "); 277 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 278 mvprintw(PAGEROW + 2, PAGECOL, "ops"); 279 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 280 281 mvprintw(INTSROW, INTSCOL + 3, " Interrupts"); 282 mvprintw(INTSROW + 1, INTSCOL + 9, "total"); 283 284 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "forks"); 285 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "fkppw"); 286 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "fksvm"); 287 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "pwait"); 288 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "relck"); 289 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "rlkok"); 290 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "noram"); 291 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "ndcpy"); 292 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "fltcp"); 293 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "zfod"); 294 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "cow"); 295 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "fmin"); 296 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "ftarg"); 297 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "itarg"); 298 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "wired"); 299 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "pdfre"); 300 if (LINES - 1 > VMSTATROW + 16) 301 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "pdscn"); 302 303 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 304 305 mvprintw(GRAPHROW, GRAPHCOL, 306 " . %% Sy . %% Us . %% Ni . %% In . %% Id"); 307 mvprintw(PROCSROW, PROCSCOL, "Proc:r d s w"); 308 mvprintw(GRAPHROW + 1, GRAPHCOL, 309 "| | | | | | | | | | |"); 310 311 mvprintw(NAMEIROW, NAMEICOL, "Namei Sys-cache Proc-cache"); 312 mvprintw(NAMEIROW + 1, NAMEICOL, 313 " Calls hits %% hits %%"); 314 mvprintw(DISKROW, DISKCOL, "Discs"); 315 mvprintw(DISKROW + 1, DISKCOL, "seeks"); 316 mvprintw(DISKROW + 2, DISKCOL, "xfers"); 317 mvprintw(DISKROW + 3, DISKCOL, "Kbyte"); 318 mvprintw(DISKROW + 4, DISKCOL, "%%busy"); 319 j = 0; 320 for (i = 0; i < dk_ndrive && j < MAXDRIVES; i++) 321 if (dk_select[i]) { 322 mvprintw(DISKROW, DISKCOL + 5 + 5 * j, 323 " %4.4s", dr_name[j]); 324 j++; 325 } 326 for (i = 0; i < nintr; i++) { 327 if (intrloc[i] == 0) 328 continue; 329 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", intrname[i]); 330 } 331 } 332 333 #define X(fld) {t=s.fld[i]; s.fld[i]-=s1.fld[i]; if(state==TIME) s1.fld[i]=t;} 334 #define Y(fld) {t = s.fld; s.fld -= s1.fld; if(state == TIME) s1.fld = t;} 335 #define Z(fld) {t = s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld; \ 336 if(state == TIME) s1.nchstats.fld = t;} 337 #define PUTRATE(fld, l, c, w) {Y(fld); putint((int)((float)s.fld/etime + 0.5), l, c, w);} 338 #define MAXFAIL 5 339 340 static char cpuchar[CPUSTATES] = { '=' , '>', '-', '%', ' ' }; 341 static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_INTR, CP_IDLE }; 342 343 void 344 showvmstat(void) 345 { 346 float f1, f2; 347 int psiz, inttotal; 348 int i, l, c; 349 static int failcnt = 0; 350 351 if (state == TIME) 352 dkswap(); 353 etime = 0; 354 for(i = 0; i < CPUSTATES; i++) { 355 X(time); 356 etime += s.time[i]; 357 } 358 if (etime < 1.0) { /* < 5 ticks - ignore this trash */ 359 if (failcnt++ >= MAXFAIL) { 360 clear(); 361 mvprintw(2, 10, "The alternate system clock has died!"); 362 mvprintw(3, 10, "Reverting to ``pigs'' display."); 363 move(CMDLINE, 0); 364 refresh(); 365 failcnt = 0; 366 sleep(5); 367 command("pigs"); 368 } 369 return; 370 } 371 failcnt = 0; 372 etime /= hertz; 373 inttotal = 0; 374 for (i = 0; i < nintr; i++) { 375 if (s.intrcnt[i] == 0) 376 continue; 377 if (intrloc[i] == 0) { 378 if (nextintsrow == LINES) 379 continue; 380 intrloc[i] = nextintsrow++; 381 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", 382 intrname[i]); 383 } 384 X(intrcnt); 385 l = (int)((float)s.intrcnt[i]/etime + 0.5); 386 inttotal += l; 387 putint(l, intrloc[i], INTSCOL, 8); 388 } 389 putint(inttotal, INTSROW + 1, INTSCOL, 8); 390 Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss); 391 Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); 392 s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits + 393 nchtotal.ncs_miss + nchtotal.ncs_long; 394 if (state == TIME) 395 s1.nchcount = s.nchcount; 396 397 psiz = 0; 398 f2 = 0.0; 399 400 /* 401 * Last CPU state not calculated yet. 402 */ 403 for (c = 0; c < CPUSTATES; c++) { 404 i = cpuorder[c]; 405 f1 = cputime(i); 406 f2 += f1; 407 l = (int) ((f2 + 1.0) / 2.0) - psiz; 408 if (c == 0) 409 putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0); 410 else 411 putfloat(f1, GRAPHROW, GRAPHCOL + 10 * c + 1, 5, 1, 0); 412 mvhline(GRAPHROW + 2, psiz, cpuchar[c], l); 413 psiz += l; 414 } 415 416 putint(ucount(), STATROW, STATCOL, 3); 417 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 418 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 419 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 420 mvaddstr(STATROW, STATCOL + 53, buf); 421 #define pgtokb(pg) ((pg) * (s.uvmexp.pagesize / 1024)) 422 423 putint(pgtokb(s.uvmexp.active), MEMROW + 2, MEMCOL + 6, 7); 424 putint(pgtokb(s.uvmexp.active + s.uvmexp.swpginuse), /* XXX */ 425 MEMROW + 2, MEMCOL + 16, 7); 426 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free), MEMROW + 3, MEMCOL + 6, 7); 427 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free + s.uvmexp.swpginuse), 428 MEMROW + 3, MEMCOL + 16, 7); 429 putint(pgtokb(s.uvmexp.free), MEMROW + 2, MEMCOL + 24, 7); 430 putint(pgtokb(s.uvmexp.free + s.uvmexp.swpages - s.uvmexp.swpginuse), 431 MEMROW + 3, MEMCOL + 24, 7); 432 putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 433 putint(total.t_dw, PROCSROW + 1, PROCSCOL + 6, 3); 434 putint(total.t_sl, PROCSROW + 1, PROCSCOL + 9, 3); 435 putint(total.t_sw, PROCSROW + 1, PROCSCOL + 12, 3); 436 PUTRATE(uvmexp.forks, VMSTATROW + 0, VMSTATCOL + 3, 6); 437 PUTRATE(uvmexp.forks_ppwait, VMSTATROW + 1, VMSTATCOL + 3, 6); 438 PUTRATE(uvmexp.forks_sharevm, VMSTATROW + 2, VMSTATCOL + 3, 6); 439 PUTRATE(uvmexp.fltpgwait, VMSTATROW + 3, VMSTATCOL + 4, 5); 440 PUTRATE(uvmexp.fltrelck, VMSTATROW + 4, VMSTATCOL + 3, 6); 441 PUTRATE(uvmexp.fltrelckok, VMSTATROW + 5, VMSTATCOL + 3, 6); 442 PUTRATE(uvmexp.fltnoram, VMSTATROW + 6, VMSTATCOL + 3, 6); 443 PUTRATE(uvmexp.fltamcopy, VMSTATROW + 7, VMSTATCOL + 3, 6); 444 PUTRATE(uvmexp.flt_prcopy, VMSTATROW + 8, VMSTATCOL + 3, 6); 445 PUTRATE(uvmexp.flt_przero, VMSTATROW + 9, VMSTATCOL + 3, 6); 446 PUTRATE(uvmexp.flt_acow, VMSTATROW + 10, VMSTATCOL, 9); 447 putint(s.uvmexp.freemin, VMSTATROW + 11, VMSTATCOL, 9); 448 putint(s.uvmexp.freetarg, VMSTATROW + 12, VMSTATCOL, 9); 449 putint(s.uvmexp.inactarg, VMSTATROW + 13, VMSTATCOL, 9); 450 putint(s.uvmexp.wired, VMSTATROW + 14, VMSTATCOL, 9); 451 PUTRATE(uvmexp.pdfreed, VMSTATROW + 15, VMSTATCOL, 9); 452 if (LINES - 1 > VMSTATROW + 16) 453 PUTRATE(uvmexp.pdscans, VMSTATROW + 16, VMSTATCOL, 9); 454 455 PUTRATE(uvmexp.pageins, PAGEROW + 2, PAGECOL + 5, 5); 456 PUTRATE(uvmexp.pdpageouts, PAGEROW + 2, PAGECOL + 10, 5); 457 PUTRATE(uvmexp.swapins, PAGEROW + 2, PAGECOL + 15, 5); 458 PUTRATE(uvmexp.swapouts, PAGEROW + 2, PAGECOL + 20, 5); 459 PUTRATE(uvmexp.pgswapin, PAGEROW + 3, PAGECOL + 5, 5); 460 PUTRATE(uvmexp.pgswapout, PAGEROW + 3, PAGECOL + 10, 5); 461 462 PUTRATE(uvmexp.swtch, GENSTATROW + 1, GENSTATCOL, 5); 463 PUTRATE(uvmexp.traps, GENSTATROW + 1, GENSTATCOL + 5, 5); 464 PUTRATE(uvmexp.syscalls, GENSTATROW + 1, GENSTATCOL + 10, 5); 465 PUTRATE(uvmexp.intrs, GENSTATROW + 1, GENSTATCOL + 15, 5); 466 PUTRATE(uvmexp.softs, GENSTATROW + 1, GENSTATCOL + 20, 5); 467 PUTRATE(uvmexp.faults, GENSTATROW + 1, GENSTATCOL + 25, 5); 468 mvprintw(DISKROW, DISKCOL + 5, " "); 469 for (i = 0, c = 0; i < dk_ndrive && c < MAXDRIVES; i++) 470 if (dk_select[i]) { 471 mvprintw(DISKROW, DISKCOL + 5 + 5 * c, 472 " %4.4s", dr_name[i]); 473 dinfo(i, ++c); 474 } 475 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 476 putint(nchtotal.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9); 477 #define nz(x) ((x) ? (x) : 1) 478 putfloat(nchtotal.ncs_goodhits * 100.0 / nz(s.nchcount), 479 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 480 putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 481 putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), 482 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 483 #undef nz 484 } 485 486 void 487 vmstat_boot(char *args) 488 { 489 copyinfo(&z, &s1); 490 state = BOOT; 491 } 492 493 void 494 vmstat_run(char *args) 495 { 496 copyinfo(&s1, &s2); 497 state = RUN; 498 } 499 500 void 501 vmstat_time (args) 502 char * args; 503 { 504 state = TIME; 505 } 506 507 void 508 vmstat_zero(char *args) 509 { 510 if (state == RUN) 511 getinfo(&s1, RUN); 512 } 513 514 /* calculate number of users on the system */ 515 static int 516 ucount(void) 517 { 518 int nusers = 0, onusers = -1; 519 520 if (ut < 0) 521 return (0); 522 while (read(ut, &utmp, sizeof(utmp))) 523 if (utmp.ut_name[0] != '\0') 524 nusers++; 525 526 if (nusers != onusers) { 527 if (nusers == 1) 528 mvprintw(STATROW, STATCOL + 8, " "); 529 else 530 mvprintw(STATROW, STATCOL + 8, "s"); 531 } 532 lseek(ut, (off_t)0, SEEK_SET); 533 onusers = nusers; 534 return (nusers); 535 } 536 537 static float 538 cputime(int indx) 539 { 540 double t; 541 int i; 542 543 t = 0; 544 for (i = 0; i < CPUSTATES; i++) 545 t += s.time[i]; 546 if (t == 0.0) 547 t = 1.0; 548 return (s.time[indx] * 100.0 / t); 549 } 550 551 static void 552 putint(int n, int l, int c, int w) 553 { 554 char b[128]; 555 556 move(l, c); 557 if (n == 0) { 558 hline(' ', w); 559 return; 560 } 561 (void)snprintf(b, sizeof b, "%*d", w, n); 562 if (strlen(b) > w) { 563 hline('*', w); 564 return; 565 } 566 addstr(b); 567 } 568 569 static void 570 putfloat(double f, int l, int c, int w, int d, int nz) 571 { 572 char b[128]; 573 574 move(l, c); 575 if (nz && f == 0.0) { 576 hline(' ', w); 577 return; 578 } 579 (void)snprintf(b, sizeof b, "%*.*f", w, d, f); 580 if (strlen(b) > w) { 581 hline('*', w); 582 return; 583 } 584 addstr(b); 585 } 586 587 static void 588 getinfo(struct Info *s, enum state st) 589 { 590 int mib[2]; 591 size_t size; 592 593 dkreadstats(); 594 (void) fetch_cptime(s->time); 595 NREAD(X_NCHSTATS, &s->nchstats, sizeof s->nchstats); 596 NREAD(X_INTRCNT, s->intrcnt, nintr * LONG); 597 size = sizeof(s->uvmexp); 598 mib[0] = CTL_VM; 599 mib[1] = VM_UVMEXP; 600 if (sysctl(mib, 2, &s->uvmexp, &size, NULL, 0) < 0) { 601 error("can't get uvmexp: %s\n", strerror(errno)); 602 memset(&s->uvmexp, 0, sizeof(s->uvmexp)); 603 } 604 size = sizeof(s->Total); 605 mib[0] = CTL_VM; 606 mib[1] = VM_METER; 607 if (sysctl(mib, 2, &s->Total, &size, NULL, 0) < 0) { 608 error("Can't get kernel info: %s\n", strerror(errno)); 609 memset(&s->Total, 0, sizeof(s->Total)); 610 } 611 } 612 613 static void 614 allocinfo(struct Info *s) 615 { 616 617 if ((s->intrcnt = malloc(nintr * sizeof(long))) == NULL) { 618 error("malloc failed"); 619 die(0); 620 } 621 } 622 623 static void 624 copyinfo(struct Info *from, struct Info *to) 625 { 626 long *intrcnt; 627 628 intrcnt = to->intrcnt; 629 *to = *from; 630 memmove(to->intrcnt = intrcnt, from->intrcnt, nintr * sizeof (int)); 631 } 632 633 static void 634 dinfo(int dn, int c) 635 { 636 double words, atime; 637 638 c = DISKCOL + c * 5; 639 640 /* time busy in disk activity */ 641 atime = (double)cur.dk_time[dn].tv_sec + 642 ((double)cur.dk_time[dn].tv_usec / (double)1000000); 643 644 words = cur.dk_bytes[dn] / 1024.0; /* # of K transferred */ 645 646 putint((int)((float)cur.dk_seek[dn]/etime+0.5), DISKROW + 1, c, 5); 647 putint((int)((float)cur.dk_xfer[dn]/etime+0.5), DISKROW + 2, c, 5); 648 putint((int)(words/etime + 0.5), DISKROW + 3, c, 5); 649 putfloat(atime*100.0/etime, DISKROW + 4, c, 5, 1, 1); 650 } 651
Indexes created Sun Oct 19 02:09:48 GMT 2025