vmstat.c revision 1.33
1 /* $NetBSD: vmstat.c,v 1.33 2000/07/05 11:03:23 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 1.33 2000/07/05 11:03:23 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 <uvm/uvm_extern.h> 60 61 #include <ctype.h> 62 #include <err.h> 63 #include <nlist.h> 64 #include <paths.h> 65 #include <signal.h> 66 #include <stdlib.h> 67 #include <string.h> 68 #include <utmp.h> 69 #include <unistd.h> 70 71 #include "systat.h" 72 #include "extern.h" 73 74 static struct Info { 75 u_int64_t time[CPUSTATES]; 76 struct uvmexp uvmexp; 77 struct vmtotal Total; 78 struct nchstats nchstats; 79 long nchcount; 80 long *intrcnt; 81 } s, s1, s2, z; 82 83 #include "dkstats.h" 84 extern struct _disk cur; 85 86 87 #define cnt s.Cnt 88 #define oldcnt s1.Cnt 89 #define total s.Total 90 #define nchtotal s.nchstats 91 #define oldnchtotal s1.nchstats 92 93 static enum state { BOOT, TIME, RUN } state = TIME; 94 95 static void allocinfo(struct Info *); 96 static void copyinfo(struct Info *, struct Info *); 97 static float cputime(int); 98 static void dinfo(int, int); 99 static void getinfo(struct Info *, enum state); 100 static void putint(int, int, int, int); 101 static void putfloat(double, int, int, int, int, int); 102 static int ucount(void); 103 104 static int ut; 105 static char buf[26]; 106 static u_int64_t t; 107 static double etime; 108 static float hertz; 109 static int nintr; 110 static long *intrloc; 111 static char **intrname; 112 static int nextintsrow; 113 114 struct utmp utmp; 115 116 WINDOW * 117 openvmstat(void) 118 { 119 120 ut = open(_PATH_UTMP, O_RDONLY); 121 if (ut < 0) 122 error("No utmp"); 123 return (stdscr); 124 } 125 126 void 127 closevmstat(WINDOW *w) 128 { 129 130 (void) close(ut); 131 if (w == NULL) 132 return; 133 wclear(w); 134 wrefresh(w); 135 } 136 137 138 static struct nlist namelist[] = { 139 #define X_TOTAL 0 140 { "_total" }, 141 #define X_NCHSTATS 1 142 { "_nchstats" }, 143 #define X_INTRNAMES 2 144 { "_intrnames" }, 145 #define X_EINTRNAMES 3 146 { "_eintrnames" }, 147 #define X_INTRCNT 4 148 { "_intrcnt" }, 149 #define X_EINTRCNT 5 150 { "_eintrcnt" }, 151 { "" }, 152 }; 153 154 /* 155 * These constants define where the major pieces are laid out 156 */ 157 #define STATROW 0 /* uses 1 row and 68 cols */ 158 #define STATCOL 2 159 #define MEMROW 2 /* uses 4 rows and 31 cols */ 160 #define MEMCOL 0 161 #define PAGEROW 2 /* uses 4 rows and 26 cols */ 162 #define PAGECOL 36 163 #define INTSROW 2 /* uses all rows to bottom and 17 cols */ 164 #define INTSCOL 63 165 #define PROCSROW 7 /* uses 2 rows and 20 cols */ 166 #define PROCSCOL 0 167 #define GENSTATROW 7 /* uses 2 rows and 30 cols */ 168 #define GENSTATCOL 20 169 #define VMSTATROW 7 /* uses 17 rows and 12 cols */ 170 #define VMSTATCOL 48 171 #define GRAPHROW 10 /* uses 3 rows and 51 cols */ 172 #define GRAPHCOL 0 173 #define NAMEIROW 14 /* uses 3 rows and 38 cols */ 174 #define NAMEICOL 0 175 #define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ 176 #define DISKCOL 0 177 178 #define DRIVESPACE 9 /* max # for space */ 179 180 #if DK_NDRIVE > DRIVESPACE 181 #define MAXDRIVES DRIVESPACE /* max # to display */ 182 #else 183 #define MAXDRIVES DK_NDRIVE /* max # to display */ 184 #endif 185 186 int 187 initvmstat(void) 188 { 189 char *intrnamebuf, *cp; 190 int i; 191 static int once = 0; 192 extern gid_t egid; 193 194 if (namelist[0].n_type == 0) { 195 if (kvm_nlist(kd, namelist)) { 196 nlisterr(namelist); 197 return(0); 198 } 199 if (namelist[0].n_type == 0) { 200 error("No namelist"); 201 return(0); 202 } 203 } 204 hertz = stathz ? stathz : hz; 205 if (! dkinit(1, egid)) 206 return(0); 207 if (dk_ndrive && !once) { 208 #define allocate(e, t) \ 209 s./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 210 s1./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 211 s2./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 212 z./**/e = (t *)calloc(dk_ndrive, sizeof (t)); 213 once = 1; 214 #undef allocate 215 } 216 if (nintr == 0) { 217 nintr = (namelist[X_EINTRCNT].n_value - 218 namelist[X_INTRCNT].n_value) / sizeof (long); 219 intrloc = calloc(nintr, sizeof (long)); 220 intrname = calloc(nintr, sizeof (long)); 221 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 222 namelist[X_INTRNAMES].n_value); 223 if (intrnamebuf == NULL || intrname == 0 || intrloc == 0) { 224 error("Out of memory\n"); 225 if (intrnamebuf) 226 free(intrnamebuf); 227 if (intrname) 228 free(intrname); 229 if (intrloc) 230 free(intrloc); 231 nintr = 0; 232 return(0); 233 } 234 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 235 NVAL(X_INTRNAMES)); 236 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 237 intrname[i] = cp; 238 cp += strlen(cp) + 1; 239 } 240 nextintsrow = INTSROW + 2; 241 allocinfo(&s); 242 allocinfo(&s1); 243 allocinfo(&s2); 244 allocinfo(&z); 245 } 246 getinfo(&s2, RUN); 247 copyinfo(&s2, &s1); 248 return(1); 249 } 250 251 void 252 fetchvmstat(void) 253 { 254 time_t now; 255 256 time(&now); 257 strcpy(buf, ctime(&now)); 258 buf[19] = '\0'; 259 getinfo(&s, state); 260 } 261 262 void 263 labelvmstat(void) 264 { 265 int i, j; 266 267 clear(); 268 mvprintw(STATROW, STATCOL + 4, "users Load"); 269 mvprintw(MEMROW, MEMCOL, " memory totals (in KB)"); 270 mvprintw(MEMROW + 1, MEMCOL, " real virtual free"); 271 mvprintw(MEMROW + 2, MEMCOL, "Active"); 272 mvprintw(MEMROW + 3, MEMCOL, "All"); 273 274 mvprintw(PAGEROW, PAGECOL, " PAGING SWAPPING "); 275 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 276 mvprintw(PAGEROW + 2, PAGECOL, "ops"); 277 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 278 279 mvprintw(INTSROW, INTSCOL + 3, " Interrupts"); 280 mvprintw(INTSROW + 1, INTSCOL + 9, "total"); 281 282 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "forks"); 283 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "fkppw"); 284 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "fksvm"); 285 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "pwait"); 286 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "relck"); 287 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "rlkok"); 288 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "noram"); 289 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "ndcpy"); 290 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "fltcp"); 291 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "zfod"); 292 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "cow"); 293 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "fmin"); 294 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "ftarg"); 295 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "itarg"); 296 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "wired"); 297 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "pdfre"); 298 if (LINES - 1 > VMSTATROW + 16) 299 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "pdscn"); 300 301 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 302 303 mvprintw(GRAPHROW, GRAPHCOL, 304 " . %% Sy . %% Us . %% Ni . %% In . %% Id"); 305 mvprintw(PROCSROW, PROCSCOL, "Proc:r d s w"); 306 mvprintw(GRAPHROW + 1, GRAPHCOL, 307 "| | | | | | | | | | |"); 308 309 mvprintw(NAMEIROW, NAMEICOL, "Namei Sys-cache Proc-cache"); 310 mvprintw(NAMEIROW + 1, NAMEICOL, 311 " Calls hits %% hits %%"); 312 mvprintw(DISKROW, DISKCOL, "Discs"); 313 mvprintw(DISKROW + 1, DISKCOL, "seeks"); 314 mvprintw(DISKROW + 2, DISKCOL, "xfers"); 315 mvprintw(DISKROW + 3, DISKCOL, "Kbyte"); 316 mvprintw(DISKROW + 4, DISKCOL, "%%busy"); 317 j = 0; 318 for (i = 0; i < dk_ndrive && j < MAXDRIVES; i++) 319 if (dk_select[i]) { 320 mvprintw(DISKROW, DISKCOL + 5 + 5 * j, 321 " %4.4s", dr_name[j]); 322 j++; 323 } 324 for (i = 0; i < nintr; i++) { 325 if (intrloc[i] == 0) 326 continue; 327 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", intrname[i]); 328 } 329 } 330 331 #define X(fld) {t=s.fld[i]; s.fld[i]-=s1.fld[i]; if(state==TIME) s1.fld[i]=t;} 332 #define Y(fld) {t = s.fld; s.fld -= s1.fld; if(state == TIME) s1.fld = t;} 333 #define Z(fld) {t = s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld; \ 334 if(state == TIME) s1.nchstats.fld = t;} 335 #define PUTRATE(fld, l, c, w) {Y(fld); putint((int)((float)s.fld/etime + 0.5), l, c, w);} 336 #define MAXFAIL 5 337 338 static char cpuchar[CPUSTATES] = { '=' , '>', '-', '%', ' ' }; 339 static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_INTR, CP_IDLE }; 340 341 void 342 showvmstat(void) 343 { 344 float f1, f2; 345 int psiz, inttotal; 346 int i, l, c; 347 static int failcnt = 0; 348 349 if (state == TIME) 350 dkswap(); 351 etime = 0; 352 for(i = 0; i < CPUSTATES; i++) { 353 X(time); 354 etime += s.time[i]; 355 } 356 if (etime < 1.0) { /* < 5 ticks - ignore this trash */ 357 if (failcnt++ >= MAXFAIL) { 358 clear(); 359 mvprintw(2, 10, "The alternate system clock has died!"); 360 mvprintw(3, 10, "Reverting to ``pigs'' display."); 361 move(CMDLINE, 0); 362 refresh(); 363 failcnt = 0; 364 sleep(5); 365 command("pigs"); 366 } 367 return; 368 } 369 failcnt = 0; 370 etime /= hertz; 371 inttotal = 0; 372 for (i = 0; i < nintr; i++) { 373 if (s.intrcnt[i] == 0) 374 continue; 375 if (intrloc[i] == 0) { 376 if (nextintsrow == LINES) 377 continue; 378 intrloc[i] = nextintsrow++; 379 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", 380 intrname[i]); 381 } 382 X(intrcnt); 383 l = (int)((float)s.intrcnt[i]/etime + 0.5); 384 inttotal += l; 385 putint(l, intrloc[i], INTSCOL, 8); 386 } 387 putint(inttotal, INTSROW + 1, INTSCOL, 8); 388 Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss); 389 Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); 390 s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits + 391 nchtotal.ncs_miss + nchtotal.ncs_long; 392 if (state == TIME) 393 s1.nchcount = s.nchcount; 394 395 psiz = 0; 396 f2 = 0.0; 397 398 /* 399 * Last CPU state not calculated yet. 400 */ 401 for (c = 0; c < CPUSTATES; c++) { 402 i = cpuorder[c]; 403 f1 = cputime(i); 404 f2 += f1; 405 l = (int) ((f2 + 1.0) / 2.0) - psiz; 406 if (c == 0) 407 putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0); 408 else 409 putfloat(f1, GRAPHROW, GRAPHCOL + 10 * c + 1, 5, 1, 0); 410 mvhline(GRAPHROW + 2, psiz, cpuchar[c], l); 411 psiz += l; 412 } 413 414 putint(ucount(), STATROW, STATCOL, 3); 415 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 416 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 417 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 418 mvaddstr(STATROW, STATCOL + 53, buf); 419 #define pgtokb(pg) ((pg) * (s.uvmexp.pagesize / 1024)) 420 421 putint(pgtokb(s.uvmexp.active), MEMROW + 2, MEMCOL + 6, 7); 422 putint(pgtokb(s.uvmexp.active + s.uvmexp.swpginuse), /* XXX */ 423 MEMROW + 2, MEMCOL + 16, 7); 424 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free), MEMROW + 3, MEMCOL + 6, 7); 425 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free + s.uvmexp.swpginuse), 426 MEMROW + 3, MEMCOL + 16, 7); 427 putint(pgtokb(s.uvmexp.free), MEMROW + 2, MEMCOL + 24, 7); 428 putint(pgtokb(s.uvmexp.free + s.uvmexp.swpages - s.uvmexp.swpginuse), 429 MEMROW + 3, MEMCOL + 24, 7); 430 putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 431 putint(total.t_dw, PROCSROW + 1, PROCSCOL + 6, 3); 432 putint(total.t_sl, PROCSROW + 1, PROCSCOL + 9, 3); 433 putint(total.t_sw, PROCSROW + 1, PROCSCOL + 12, 3); 434 PUTRATE(uvmexp.forks, VMSTATROW + 0, VMSTATCOL + 3, 6); 435 PUTRATE(uvmexp.forks_ppwait, VMSTATROW + 1, VMSTATCOL + 3, 6); 436 PUTRATE(uvmexp.forks_sharevm, VMSTATROW + 2, VMSTATCOL + 3, 6); 437 PUTRATE(uvmexp.fltpgwait, VMSTATROW + 3, VMSTATCOL + 4, 5); 438 PUTRATE(uvmexp.fltrelck, VMSTATROW + 4, VMSTATCOL + 3, 6); 439 PUTRATE(uvmexp.fltrelckok, VMSTATROW + 5, VMSTATCOL + 3, 6); 440 PUTRATE(uvmexp.fltnoram, VMSTATROW + 6, VMSTATCOL + 3, 6); 441 PUTRATE(uvmexp.fltamcopy, VMSTATROW + 7, VMSTATCOL + 3, 6); 442 PUTRATE(uvmexp.flt_prcopy, VMSTATROW + 8, VMSTATCOL + 3, 6); 443 PUTRATE(uvmexp.flt_przero, VMSTATROW + 9, VMSTATCOL + 3, 6); 444 PUTRATE(uvmexp.flt_acow, VMSTATROW + 10, VMSTATCOL, 9); 445 putint(s.uvmexp.freemin, VMSTATROW + 11, VMSTATCOL, 9); 446 putint(s.uvmexp.freetarg, VMSTATROW + 12, VMSTATCOL, 9); 447 putint(s.uvmexp.inactarg, VMSTATROW + 13, VMSTATCOL, 9); 448 putint(s.uvmexp.wired, VMSTATROW + 14, VMSTATCOL, 9); 449 PUTRATE(uvmexp.pdfreed, VMSTATROW + 15, VMSTATCOL, 9); 450 if (LINES - 1 > VMSTATROW + 16) 451 PUTRATE(uvmexp.pdscans, VMSTATROW + 16, VMSTATCOL, 9); 452 453 PUTRATE(uvmexp.pageins, PAGEROW + 2, PAGECOL + 5, 5); 454 PUTRATE(uvmexp.pdpageouts, PAGEROW + 2, PAGECOL + 10, 5); 455 PUTRATE(uvmexp.swapins, PAGEROW + 2, PAGECOL + 15, 5); 456 PUTRATE(uvmexp.swapouts, PAGEROW + 2, PAGECOL + 20, 5); 457 PUTRATE(uvmexp.pgswapin, PAGEROW + 3, PAGECOL + 5, 5); 458 PUTRATE(uvmexp.pgswapout, PAGEROW + 3, PAGECOL + 10, 5); 459 460 PUTRATE(uvmexp.swtch, GENSTATROW + 1, GENSTATCOL, 5); 461 PUTRATE(uvmexp.traps, GENSTATROW + 1, GENSTATCOL + 5, 5); 462 PUTRATE(uvmexp.syscalls, GENSTATROW + 1, GENSTATCOL + 10, 5); 463 PUTRATE(uvmexp.intrs, GENSTATROW + 1, GENSTATCOL + 15, 5); 464 PUTRATE(uvmexp.softs, GENSTATROW + 1, GENSTATCOL + 20, 5); 465 PUTRATE(uvmexp.faults, GENSTATROW + 1, GENSTATCOL + 25, 5); 466 mvprintw(DISKROW, DISKCOL + 5, " "); 467 for (i = 0, c = 0; i < dk_ndrive && c < MAXDRIVES; i++) 468 if (dk_select[i]) { 469 mvprintw(DISKROW, DISKCOL + 5 + 5 * c, 470 " %4.4s", dr_name[i]); 471 dinfo(i, ++c); 472 } 473 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 474 putint(nchtotal.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9); 475 #define nz(x) ((x) ? (x) : 1) 476 putfloat(nchtotal.ncs_goodhits * 100.0 / nz(s.nchcount), 477 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 478 putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 479 putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), 480 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 481 #undef nz 482 } 483 484 void 485 vmstat_boot(char *args) 486 { 487 copyinfo(&z, &s1); 488 state = BOOT; 489 } 490 491 void 492 vmstat_run(char *args) 493 { 494 copyinfo(&s1, &s2); 495 state = RUN; 496 } 497 498 void 499 vmstat_time (args) 500 char * args; 501 { 502 state = TIME; 503 } 504 505 void 506 vmstat_zero(char *args) 507 { 508 if (state == RUN) 509 getinfo(&s1, RUN); 510 } 511 512 /* calculate number of users on the system */ 513 static int 514 ucount(void) 515 { 516 int nusers = 0, onusers = -1; 517 518 if (ut < 0) 519 return (0); 520 while (read(ut, &utmp, sizeof(utmp))) 521 if (utmp.ut_name[0] != '\0') 522 nusers++; 523 524 if (nusers != onusers) { 525 if (nusers == 1) 526 mvprintw(STATROW, STATCOL + 8, " "); 527 else 528 mvprintw(STATROW, STATCOL + 8, "s"); 529 } 530 lseek(ut, (off_t)0, SEEK_SET); 531 onusers = nusers; 532 return (nusers); 533 } 534 535 static float 536 cputime(int indx) 537 { 538 double t; 539 int i; 540 541 t = 0; 542 for (i = 0; i < CPUSTATES; i++) 543 t += s.time[i]; 544 if (t == 0.0) 545 t = 1.0; 546 return (s.time[indx] * 100.0 / t); 547 } 548 549 static void 550 putint(int n, int l, int c, int w) 551 { 552 char b[128]; 553 554 move(l, c); 555 if (n == 0) { 556 hline(' ', w); 557 return; 558 } 559 (void)snprintf(b, sizeof b, "%*d", w, n); 560 if (strlen(b) > w) { 561 hline('*', w); 562 return; 563 } 564 addstr(b); 565 } 566 567 static void 568 putfloat(double f, int l, int c, int w, int d, int nz) 569 { 570 char b[128]; 571 572 move(l, c); 573 if (nz && f == 0.0) { 574 hline(' ', w); 575 return; 576 } 577 (void)snprintf(b, sizeof b, "%*.*f", w, d, f); 578 if (strlen(b) > w) { 579 hline('*', w); 580 return; 581 } 582 addstr(b); 583 } 584 585 static void 586 getinfo(struct Info *s, enum state st) 587 { 588 int mib[2]; 589 size_t size; 590 591 dkreadstats(); 592 (void) fetch_cptime(s->time); 593 NREAD(X_NCHSTATS, &s->nchstats, sizeof s->nchstats); 594 NREAD(X_INTRCNT, s->intrcnt, nintr * LONG); 595 size = sizeof(s->uvmexp); 596 mib[0] = CTL_VM; 597 mib[1] = VM_UVMEXP; 598 if (sysctl(mib, 2, &s->uvmexp, &size, NULL, 0) < 0) { 599 error("can't get uvmexp: %s\n", strerror(errno)); 600 memset(&s->uvmexp, 0, sizeof(s->uvmexp)); 601 } 602 size = sizeof(s->Total); 603 mib[0] = CTL_VM; 604 mib[1] = VM_METER; 605 if (sysctl(mib, 2, &s->Total, &size, NULL, 0) < 0) { 606 error("Can't get kernel info: %s\n", strerror(errno)); 607 memset(&s->Total, 0, sizeof(s->Total)); 608 } 609 } 610 611 static void 612 allocinfo(struct Info *s) 613 { 614 615 if ((s->intrcnt = malloc(nintr * sizeof(long))) == NULL) { 616 error("malloc failed"); 617 die(0); 618 } 619 } 620 621 static void 622 copyinfo(struct Info *from, struct Info *to) 623 { 624 long *intrcnt; 625 626 intrcnt = to->intrcnt; 627 *to = *from; 628 memmove(to->intrcnt = intrcnt, from->intrcnt, nintr * sizeof (int)); 629 } 630 631 static void 632 dinfo(int dn, int c) 633 { 634 double words, atime; 635 636 c = DISKCOL + c * 5; 637 638 /* time busy in disk activity */ 639 atime = (double)cur.dk_time[dn].tv_sec + 640 ((double)cur.dk_time[dn].tv_usec / (double)1000000); 641 642 words = cur.dk_bytes[dn] / 1024.0; /* # of K transferred */ 643 644 putint((int)((float)cur.dk_seek[dn]/etime+0.5), DISKROW + 1, c, 5); 645 putint((int)((float)cur.dk_xfer[dn]/etime+0.5), DISKROW + 2, c, 5); 646 putint((int)(words/etime + 0.5), DISKROW + 3, c, 5); 647 putfloat(atime*100.0/etime, DISKROW + 4, c, 5, 1, 1); 648 } 649
Indexes created Wed Sep 24 05:09:52 GMT 2025