vmstat.c revision 1.46
1 /* $NetBSD: vmstat.c,v 1.46 2003/01/20 18:24:03 dsl 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 1.46 2003/01/20 18:24:03 dsl 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 #include <sys/device.h> 54 55 #include <uvm/uvm_extern.h> 56 57 #include <stdlib.h> 58 #include <string.h> 59 #include <util.h> 60 61 #include "systat.h" 62 #include "extern.h" 63 #include "dkstats.h" 64 #include "utmpentry.h" 65 66 static struct Info { 67 struct uvmexp_sysctl uvmexp; 68 struct vmtotal Total; 69 struct nchstats nchstats; 70 long nchcount; 71 long *intrcnt; 72 u_int64_t *evcnt; 73 } s, s1, s2, z; 74 75 #define cnt s.Cnt 76 #define oldcnt s1.Cnt 77 #define total s.Total 78 #define nchtotal s.nchstats 79 #define oldnchtotal s1.nchstats 80 81 static enum state { BOOT, TIME, RUN } state = TIME; 82 83 static void allocinfo(struct Info *); 84 static void copyinfo(struct Info *, struct Info *); 85 static float cputime(int); 86 static void dinfo(int, int); 87 static void getinfo(struct Info *, enum state); 88 static void putint(int, int, int, int); 89 static void putfloat(double, int, int, int, int, int); 90 static int ucount(void); 91 92 static char buf[26]; 93 static u_int64_t t; 94 static double etime; 95 static float hertz; 96 static int nintr; 97 static long *intrloc; 98 static char **intrname; 99 static int nextintsrow; 100 101 WINDOW * 102 openvmstat(void) 103 { 104 return (stdscr); 105 } 106 107 void 108 closevmstat(WINDOW *w) 109 { 110 111 if (w == NULL) 112 return; 113 wclear(w); 114 wrefresh(w); 115 } 116 117 118 static struct nlist namelist[] = { 119 #define X_NCHSTATS 0 120 { "_nchstats" }, 121 #define X_INTRNAMES 1 122 { "_intrnames" }, 123 #define X_EINTRNAMES 2 124 { "_eintrnames" }, 125 #define X_INTRCNT 3 126 { "_intrcnt" }, 127 #define X_EINTRCNT 4 128 { "_eintrcnt" }, 129 #define X_ALLEVENTS 5 130 { "_allevents" }, 131 { "" }, 132 }; 133 134 /* 135 * These constants define where the major pieces are laid out 136 */ 137 #define STATROW 0 /* uses 1 row and 68 cols */ 138 #define STATCOL 2 139 #define MEMROW 2 /* uses 4 rows and 31 cols */ 140 #define MEMCOL 0 141 #define PAGEROW 2 /* uses 4 rows and 26 cols */ 142 #define PAGECOL 36 143 #define INTSROW 2 /* uses all rows to bottom and 17 cols */ 144 #define INTSCOL 63 145 #define PROCSROW 7 /* uses 2 rows and 20 cols */ 146 #define PROCSCOL 0 147 #define GENSTATROW 7 /* uses 2 rows and 30 cols */ 148 #define GENSTATCOL 18 149 #define VMSTATROW 7 /* uses 17 rows and 12 cols */ 150 #define VMSTATCOL 48 151 #define GRAPHROW 10 /* uses 3 rows and 51 cols */ 152 #define GRAPHCOL 0 153 #define NAMEIROW 14 /* uses 3 rows and 38 cols */ 154 #define NAMEICOL 0 155 #define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ 156 #define DISKCOL 0 157 158 #define DRIVESPACE 9 /* max # for space */ 159 160 #if DK_NDRIVE > DRIVESPACE 161 #define MAXDRIVES DRIVESPACE /* max # to display */ 162 #else 163 #define MAXDRIVES DK_NDRIVE /* max # to display */ 164 #endif 165 166 typedef struct intr_evcnt intr_evcnt_t; 167 struct intr_evcnt { 168 char *ie_group; 169 char *ie_name; 170 u_int64_t *ie_count; /* kernel address... */ 171 int ie_loc; /* screen row */ 172 } *ie_head; 173 int nevcnt; 174 175 static void 176 get_interrupt_events(void) 177 { 178 struct evcntlist allevents; 179 struct evcnt evcnt, *evptr; 180 intr_evcnt_t *ie; 181 182 if (!NREAD(X_ALLEVENTS, &allevents, sizeof allevents)) 183 return; 184 evptr = allevents.tqh_first; 185 for (; evptr != NULL; evptr = evcnt.ev_list.tqe_next) { 186 if (!KREAD(evptr, &evcnt, sizeof evcnt)) 187 return; 188 if (evcnt.ev_type != EVCNT_TYPE_INTR) 189 continue; 190 ie_head = realloc(ie_head, sizeof *ie * (nevcnt + 1)); 191 if (ie_head == NULL) { 192 error("realloc failed"); 193 die(0); 194 } 195 ie = ie_head + nevcnt; 196 ie->ie_group = malloc(evcnt.ev_grouplen + 1); 197 ie->ie_name = malloc(evcnt.ev_namelen + 1); 198 if (ie->ie_group == NULL || ie->ie_name == NULL) 199 return; 200 if (!KREAD(evcnt.ev_group, ie->ie_group, evcnt.ev_grouplen + 1)) 201 return; 202 if (!KREAD(evcnt.ev_name, ie->ie_name, evcnt.ev_namelen + 1)) 203 return; 204 ie->ie_count = &evptr->ev_count; 205 ie->ie_loc = 0; 206 nevcnt++; 207 } 208 } 209 210 int 211 initvmstat(void) 212 { 213 char *intrnamebuf, *cp; 214 int i; 215 216 if (namelist[0].n_type == 0) { 217 if (kvm_nlist(kd, namelist)) { 218 nlisterr(namelist); 219 return(0); 220 } 221 if (namelist[0].n_type == 0) { 222 error("No namelist"); 223 return(0); 224 } 225 } 226 hertz = stathz ? stathz : hz; 227 if (!dkinit(1)) 228 return(0); 229 230 /* Old style interrupt counts - deprecated */ 231 nintr = (namelist[X_EINTRCNT].n_value - 232 namelist[X_INTRCNT].n_value) / sizeof (long); 233 intrloc = calloc(nintr, sizeof (long)); 234 intrname = calloc(nintr, sizeof (long)); 235 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 236 namelist[X_INTRNAMES].n_value); 237 if (intrnamebuf == NULL || intrname == 0 || intrloc == 0) { 238 error("Out of memory\n"); 239 if (intrnamebuf) 240 free(intrnamebuf); 241 if (intrname) 242 free(intrname); 243 if (intrloc) 244 free(intrloc); 245 nintr = 0; 246 return(0); 247 } 248 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 249 NVAL(X_INTRNAMES)); 250 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 251 intrname[i] = cp; 252 cp += strlen(cp) + 1; 253 } 254 255 /* event counter interrupt counts */ 256 get_interrupt_events(); 257 258 nextintsrow = INTSROW + 2; 259 allocinfo(&s); 260 allocinfo(&s1); 261 allocinfo(&s2); 262 allocinfo(&z); 263 264 getinfo(&s2, RUN); 265 copyinfo(&s2, &s1); 266 return(1); 267 } 268 269 void 270 fetchvmstat(void) 271 { 272 time_t now; 273 274 time(&now); 275 strcpy(buf, ctime(&now)); 276 buf[19] = '\0'; 277 getinfo(&s, state); 278 } 279 280 static void 281 print_ie_title(int i) 282 { 283 int width, name_width, group_width; 284 285 width = COLS - (INTSCOL + 9); 286 if (width <= 0) 287 return; 288 289 move(ie_head[i].ie_loc, INTSCOL + 9); 290 group_width = strlen(ie_head[i].ie_group); 291 name_width = strlen(ie_head[i].ie_name); 292 width -= group_width + 1 + name_width; 293 if (width < 0) { 294 /* screen to narrow for full strings */ 295 width = -width; 296 group_width -= (width + 1) / 2; 297 name_width -= width / 2; 298 if (group_width <= 3 || name_width < 0) { 299 /* don't display group */ 300 name_width += group_width + 1; 301 group_width = 0; 302 } 303 } 304 305 if (group_width) 306 printw("%-.*s ", group_width, ie_head[i].ie_group); 307 printw("%-.*s", name_width, ie_head[i].ie_name); 308 } 309 310 void 311 labelvmstat(void) 312 { 313 int i, j; 314 315 clear(); 316 mvprintw(STATROW, STATCOL + 4, "users Load"); 317 mvprintw(MEMROW, MEMCOL, " memory totals (in kB)"); 318 mvprintw(MEMROW + 1, MEMCOL, " real virtual free"); 319 mvprintw(MEMROW + 2, MEMCOL, "Active"); 320 mvprintw(MEMROW + 3, MEMCOL, "All"); 321 322 mvprintw(PAGEROW, PAGECOL, " PAGING SWAPPING "); 323 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 324 mvprintw(PAGEROW + 2, PAGECOL, "ops"); 325 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 326 327 mvprintw(INTSROW, INTSCOL + 3, " Interrupts"); 328 mvprintw(INTSROW + 1, INTSCOL + 9, "total"); 329 330 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "forks"); 331 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "fkppw"); 332 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "fksvm"); 333 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "pwait"); 334 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "relck"); 335 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "rlkok"); 336 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "noram"); 337 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "ndcpy"); 338 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "fltcp"); 339 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "zfod"); 340 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "cow"); 341 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "fmin"); 342 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "ftarg"); 343 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "itarg"); 344 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "wired"); 345 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "pdfre"); 346 if (LINES - 1 > VMSTATROW + 16) 347 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "pdscn"); 348 349 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 350 351 mvprintw(GRAPHROW, GRAPHCOL, 352 " . %% Sy . %% Us . %% Ni . %% In . %% Id"); 353 mvprintw(PROCSROW, PROCSCOL, "Proc:r d s w"); 354 mvprintw(GRAPHROW + 1, GRAPHCOL, 355 "| | | | | | | | | | |"); 356 357 mvprintw(NAMEIROW, NAMEICOL, "Namei Sys-cache Proc-cache"); 358 mvprintw(NAMEIROW + 1, NAMEICOL, 359 " Calls hits %% hits %%"); 360 mvprintw(DISKROW, DISKCOL, "Discs"); 361 mvprintw(DISKROW + 1, DISKCOL, "seeks"); 362 mvprintw(DISKROW + 2, DISKCOL, "xfers"); 363 mvprintw(DISKROW + 3, DISKCOL, "bytes"); 364 mvprintw(DISKROW + 4, DISKCOL, "%%busy"); 365 j = 0; 366 for (i = 0; i < dk_ndrive && j < MAXDRIVES; i++) 367 if (dk_select[i]) { 368 mvprintw(DISKROW, DISKCOL + 5 + 5 * j, 369 " %4.4s", dr_name[j]); 370 j++; 371 } 372 for (i = 0; i < nintr; i++) { 373 if (intrloc[i] == 0) 374 continue; 375 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", intrname[i]); 376 } 377 for (i = 0; i < nevcnt; i++) { 378 if (ie_head[i].ie_loc == 0) 379 continue; 380 print_ie_title(i); 381 } 382 } 383 384 #define X(fld) {t=s.fld[i]; s.fld[i]-=s1.fld[i]; if(state==TIME) s1.fld[i]=t;} 385 #define Y(fld) {t = s.fld; s.fld -= s1.fld; if(state == TIME) s1.fld = t;} 386 #define Z(fld) {t = s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld; \ 387 if(state == TIME) s1.nchstats.fld = t;} 388 #define PUTRATE(fld, l, c, w) {Y(fld); putint((int)((float)s.fld/etime + 0.5), l, c, w);} 389 #define MAXFAIL 5 390 391 static char cpuchar[CPUSTATES] = { '=' , '>', '-', '%', ' ' }; 392 static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_INTR, CP_IDLE }; 393 394 void 395 showvmstat(void) 396 { 397 float f1, f2; 398 int psiz, inttotal; 399 int i, l, c; 400 static int failcnt = 0; 401 402 if (state == TIME) { 403 dkswap(); 404 etime = cur.cp_etime; 405 /* < 5 ticks - ignore this trash */ 406 if ((etime * hertz) < 1.0) { 407 if (failcnt++ > MAXFAIL) 408 return; 409 clear(); 410 mvprintw(2, 10, "The alternate system clock has died!"); 411 mvprintw(3, 10, "Reverting to ``pigs'' display."); 412 move(CMDLINE, 0); 413 refresh(); 414 failcnt = 0; 415 sleep(5); 416 command("pigs"); 417 return; 418 } 419 } else 420 etime = 1.0; 421 422 failcnt = 0; 423 inttotal = 0; 424 for (i = 0; i < nintr; i++) { 425 if (s.intrcnt[i] == 0) 426 continue; 427 if (intrloc[i] == 0) { 428 if (nextintsrow == LINES) 429 continue; 430 intrloc[i] = nextintsrow++; 431 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", 432 intrname[i]); 433 } 434 X(intrcnt); 435 l = (int)((float)s.intrcnt[i]/etime + 0.5); 436 inttotal += l; 437 putint(l, intrloc[i], INTSCOL, 8); 438 } 439 for (i = 0; i < nevcnt; i++) { 440 if (s.evcnt[i] == 0) 441 continue; 442 if (ie_head[i].ie_loc == 0) { 443 if (nextintsrow == LINES) 444 continue; 445 ie_head[i].ie_loc = nextintsrow++; 446 print_ie_title(i); 447 } 448 X(evcnt); 449 l = (int)((float)s.evcnt[i]/etime + 0.5); 450 inttotal += l; 451 putint(l, ie_head[i].ie_loc, INTSCOL, 8); 452 } 453 putint(inttotal, INTSROW + 1, INTSCOL, 8); 454 Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss); 455 Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); 456 s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits + 457 nchtotal.ncs_miss + nchtotal.ncs_long; 458 if (state == TIME) 459 s1.nchcount = s.nchcount; 460 461 psiz = 0; 462 f2 = 0.0; 463 464 /* 465 * Last CPU state not calculated yet. 466 */ 467 for (c = 0; c < CPUSTATES; c++) { 468 i = cpuorder[c]; 469 f1 = cputime(i); 470 f2 += f1; 471 l = (int) ((f2 + 1.0) / 2.0) - psiz; 472 if (c == 0) 473 putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0); 474 else 475 putfloat(f1, GRAPHROW, GRAPHCOL + 10 * c + 1, 5, 1, 0); 476 mvhline(GRAPHROW + 2, psiz, cpuchar[c], l); 477 psiz += l; 478 } 479 480 putint(ucount(), STATROW, STATCOL, 3); 481 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 482 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 483 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 484 mvaddstr(STATROW, STATCOL + 53, buf); 485 #define pgtokb(pg) ((pg) * (s.uvmexp.pagesize / 1024)) 486 487 putint(pgtokb(s.uvmexp.active), MEMROW + 2, MEMCOL + 6, 7); 488 putint(pgtokb(s.uvmexp.active + s.uvmexp.swpginuse), /* XXX */ 489 MEMROW + 2, MEMCOL + 16, 7); 490 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free), MEMROW + 3, MEMCOL + 6, 7); 491 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free + s.uvmexp.swpginuse), 492 MEMROW + 3, MEMCOL + 16, 7); 493 putint(pgtokb(s.uvmexp.free), MEMROW + 2, MEMCOL + 24, 7); 494 putint(pgtokb(s.uvmexp.free + s.uvmexp.swpages - s.uvmexp.swpginuse), 495 MEMROW + 3, MEMCOL + 24, 7); 496 putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 497 putint(total.t_dw, PROCSROW + 1, PROCSCOL + 6, 3); 498 putint(total.t_sl, PROCSROW + 1, PROCSCOL + 9, 3); 499 putint(total.t_sw, PROCSROW + 1, PROCSCOL + 12, 3); 500 PUTRATE(uvmexp.forks, VMSTATROW + 0, VMSTATCOL + 3, 6); 501 PUTRATE(uvmexp.forks_ppwait, VMSTATROW + 1, VMSTATCOL + 3, 6); 502 PUTRATE(uvmexp.forks_sharevm, VMSTATROW + 2, VMSTATCOL + 3, 6); 503 PUTRATE(uvmexp.fltpgwait, VMSTATROW + 3, VMSTATCOL + 4, 5); 504 PUTRATE(uvmexp.fltrelck, VMSTATROW + 4, VMSTATCOL + 3, 6); 505 PUTRATE(uvmexp.fltrelckok, VMSTATROW + 5, VMSTATCOL + 3, 6); 506 PUTRATE(uvmexp.fltnoram, VMSTATROW + 6, VMSTATCOL + 3, 6); 507 PUTRATE(uvmexp.fltamcopy, VMSTATROW + 7, VMSTATCOL + 3, 6); 508 PUTRATE(uvmexp.flt_prcopy, VMSTATROW + 8, VMSTATCOL + 3, 6); 509 PUTRATE(uvmexp.flt_przero, VMSTATROW + 9, VMSTATCOL + 3, 6); 510 PUTRATE(uvmexp.flt_acow, VMSTATROW + 10, VMSTATCOL, 9); 511 putint(s.uvmexp.freemin, VMSTATROW + 11, VMSTATCOL, 9); 512 putint(s.uvmexp.freetarg, VMSTATROW + 12, VMSTATCOL, 9); 513 putint(s.uvmexp.inactarg, VMSTATROW + 13, VMSTATCOL, 9); 514 putint(s.uvmexp.wired, VMSTATROW + 14, VMSTATCOL, 9); 515 PUTRATE(uvmexp.pdfreed, VMSTATROW + 15, VMSTATCOL, 9); 516 if (LINES - 1 > VMSTATROW + 16) 517 PUTRATE(uvmexp.pdscans, VMSTATROW + 16, VMSTATCOL, 9); 518 519 PUTRATE(uvmexp.pageins, PAGEROW + 2, PAGECOL + 5, 5); 520 PUTRATE(uvmexp.pdpageouts, PAGEROW + 2, PAGECOL + 10, 5); 521 PUTRATE(uvmexp.swapins, PAGEROW + 2, PAGECOL + 15, 5); 522 PUTRATE(uvmexp.swapouts, PAGEROW + 2, PAGECOL + 20, 5); 523 PUTRATE(uvmexp.pgswapin, PAGEROW + 3, PAGECOL + 5, 5); 524 PUTRATE(uvmexp.pgswapout, PAGEROW + 3, PAGECOL + 10, 5); 525 526 PUTRATE(uvmexp.swtch, GENSTATROW + 1, GENSTATCOL, 4); 527 PUTRATE(uvmexp.traps, GENSTATROW + 1, GENSTATCOL + 4, 6); 528 PUTRATE(uvmexp.syscalls, GENSTATROW + 1, GENSTATCOL + 10, 6); 529 PUTRATE(uvmexp.intrs, GENSTATROW + 1, GENSTATCOL + 16, 5); 530 PUTRATE(uvmexp.softs, GENSTATROW + 1, GENSTATCOL + 21, 5); 531 PUTRATE(uvmexp.faults, GENSTATROW + 1, GENSTATCOL + 26, 6); 532 mvprintw(DISKROW, DISKCOL + 5, " "); 533 for (i = 0, c = 0; i < dk_ndrive && c < MAXDRIVES; i++) 534 if (dk_select[i]) { 535 mvprintw(DISKROW, DISKCOL + 5 + 5 * c, 536 " %4.4s", dr_name[i]); 537 dinfo(i, ++c); 538 } 539 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 540 putint(nchtotal.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9); 541 #define nz(x) ((x) ? (x) : 1) 542 putfloat(nchtotal.ncs_goodhits * 100.0 / nz(s.nchcount), 543 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 544 putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 545 putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), 546 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 547 #undef nz 548 } 549 550 void 551 vmstat_boot(char *args) 552 { 553 copyinfo(&z, &s1); 554 state = BOOT; 555 } 556 557 void 558 vmstat_run(char *args) 559 { 560 copyinfo(&s1, &s2); 561 state = RUN; 562 } 563 564 void 565 vmstat_time(char *args) 566 { 567 state = TIME; 568 } 569 570 void 571 vmstat_zero(char *args) 572 { 573 if (state == RUN) 574 getinfo(&s1, RUN); 575 } 576 577 /* calculate number of users on the system */ 578 static int 579 ucount(void) 580 { 581 static int onusers = -1; 582 static struct utmpentry *oehead = NULL; 583 int nusers = 0; 584 struct utmpentry *ehead; 585 586 nusers = getutentries(NULL, &ehead); 587 if (oehead != ehead) { 588 freeutentries(oehead); 589 oehead = ehead; 590 } 591 592 if (nusers != onusers) { 593 if (nusers == 1) 594 mvprintw(STATROW, STATCOL + 8, " "); 595 else 596 mvprintw(STATROW, STATCOL + 8, "s"); 597 } 598 onusers = nusers; 599 return (nusers); 600 } 601 602 static float 603 cputime(int indx) 604 { 605 double t; 606 int i; 607 608 t = 0; 609 for (i = 0; i < CPUSTATES; i++) 610 t += cur.cp_time[i]; 611 if (t == 0.0) 612 t = 1.0; 613 return (cur.cp_time[indx] * 100.0 / t); 614 } 615 616 static void 617 puthumanint(u_int64_t n, int l, int c, int w) 618 { 619 char b[128]; 620 621 move(l, c); 622 if (n == 0) { 623 hline(' ', w); 624 return; 625 } 626 if (humanize_number(b, w, n, "", HN_AUTOSCALE, HN_NOSPACE) == -1 ) { 627 hline('*', w); 628 return; 629 } 630 hline(' ', w - strlen(b)); 631 move(l, c + w - strlen(b)); 632 addstr(b); 633 } 634 635 static void 636 putint(int n, int l, int c, int w) 637 { 638 char b[128]; 639 640 move(l, c); 641 if (n == 0) { 642 hline(' ', w); 643 return; 644 } 645 (void)snprintf(b, sizeof b, "%*d", w, n); 646 if (strlen(b) > w) { 647 hline('*', w); 648 return; 649 } 650 addstr(b); 651 } 652 653 static void 654 putfloat(double f, int l, int c, int w, int d, int nz) 655 { 656 char b[128]; 657 658 move(l, c); 659 if (nz && f == 0.0) { 660 hline(' ', w); 661 return; 662 } 663 (void)snprintf(b, sizeof b, "%*.*f", w, d, f); 664 if (strlen(b) > w) { 665 hline('*', w); 666 return; 667 } 668 addstr(b); 669 } 670 671 static void 672 getinfo(struct Info *s, enum state st) 673 { 674 int mib[2]; 675 size_t size; 676 int i; 677 678 dkreadstats(); 679 NREAD(X_NCHSTATS, &s->nchstats, sizeof s->nchstats); 680 NREAD(X_INTRCNT, s->intrcnt, nintr * LONG); 681 for (i = 0; i < nevcnt; i++) 682 KREAD(ie_head[i].ie_count, &s->evcnt[i], sizeof s->evcnt[i]); 683 size = sizeof(s->uvmexp); 684 mib[0] = CTL_VM; 685 mib[1] = VM_UVMEXP2; 686 if (sysctl(mib, 2, &s->uvmexp, &size, NULL, 0) < 0) { 687 error("can't get uvmexp: %s\n", strerror(errno)); 688 memset(&s->uvmexp, 0, sizeof(s->uvmexp)); 689 } 690 size = sizeof(s->Total); 691 mib[0] = CTL_VM; 692 mib[1] = VM_METER; 693 if (sysctl(mib, 2, &s->Total, &size, NULL, 0) < 0) { 694 error("Can't get kernel info: %s\n", strerror(errno)); 695 memset(&s->Total, 0, sizeof(s->Total)); 696 } 697 } 698 699 static void 700 allocinfo(struct Info *s) 701 { 702 703 if ((s->intrcnt = calloc(nintr, sizeof(long))) == NULL) { 704 error("calloc failed"); 705 die(0); 706 } 707 if ((s->evcnt = calloc(nevcnt, sizeof(u_int64_t))) == NULL) { 708 error("calloc failed"); 709 die(0); 710 } 711 } 712 713 static void 714 copyinfo(struct Info *from, struct Info *to) 715 { 716 long *intrcnt; 717 u_int64_t *evcnt; 718 719 intrcnt = to->intrcnt; 720 evcnt = to->evcnt; 721 *to = *from; 722 memmove(to->intrcnt = intrcnt, from->intrcnt, nintr * sizeof (int)); 723 memmove(to->evcnt = evcnt, from->evcnt, nevcnt * sizeof *evcnt); 724 } 725 726 static void 727 dinfo(int dn, int c) 728 { 729 double atime; 730 731 c = DISKCOL + c * 5; 732 733 /* time busy in disk activity */ 734 atime = (double)cur.dk_time[dn].tv_sec + 735 ((double)cur.dk_time[dn].tv_usec / (double)1000000); 736 737 putint((int)((float)cur.dk_seek[dn]/etime+0.5), DISKROW + 1, c, 5); 738 putint((int)((float)(cur.dk_rxfer[dn]+cur.dk_wxfer[dn])/etime+0.5), 739 DISKROW + 2, c, 5); 740 puthumanint((cur.dk_rbytes[dn] + cur.dk_wbytes[dn]) / etime + 0.5, 741 DISKROW + 3, c, 5); 742 if (atime*100.0/etime >= 100) 743 putint(100, DISKROW + 4, c, 5); 744 else 745 putfloat(atime*100.0/etime, DISKROW + 4, c, 5, 1, 1); 746 } 747
Indexes created Tue Sep 23 14:10:03 GMT 2025