vmstat.c revision 1.84
1 /* $NetBSD: vmstat.c,v 1.84 2019/01/08 08:22:20 tih 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. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 #if 0 35 static char sccsid[] = "@(#)vmstat.c 8.2 (Berkeley) 1/12/94"; 36 #endif 37 __RCSID("$NetBSD: vmstat.c,v 1.84 2019/01/08 08:22:20 tih Exp $"); 38 #endif /* not lint */ 39 40 /* 41 * Cursed vmstat -- from Robert Elz. 42 */ 43 44 #include <sys/param.h> 45 #include <sys/uio.h> 46 #include <sys/namei.h> 47 #include <sys/sysctl.h> 48 #include <sys/evcnt.h> 49 50 #include <uvm/uvm_extern.h> 51 52 #include <errno.h> 53 #include <stdlib.h> 54 #include <string.h> 55 #include <util.h> 56 57 #include "systat.h" 58 #include "extern.h" 59 #include "drvstats.h" 60 #include "utmpentry.h" 61 #include "vmstat.h" 62 63 static struct Info { 64 struct uvmexp_sysctl uvmexp; 65 struct vmtotal Total; 66 struct nchstats nchstats; 67 long nchcount; 68 long *intrcnt; 69 u_int64_t *evcnt; 70 } s, s1, s2, z; 71 72 enum display_mode display_mode = TIME; 73 74 static void allocinfo(struct Info *); 75 static void copyinfo(struct Info *, struct Info *); 76 static float cputime(int); 77 static void dinfo(int, int, int); 78 static void getinfo(struct Info *); 79 static int ucount(void); 80 81 static char buf[26]; 82 static u_int64_t temp; 83 double etime; 84 static float hertz; 85 static int nintr; 86 static long *intrloc; 87 static char **intrname; 88 static int nextintsrow; 89 static int disk_horiz = 1; 90 static u_int nbuf; 91 92 WINDOW * 93 openvmstat(void) 94 { 95 return (stdscr); 96 } 97 98 void 99 closevmstat(WINDOW *w) 100 { 101 102 if (w == NULL) 103 return; 104 wclear(w); 105 wrefresh(w); 106 } 107 108 109 static struct nlist namelist[] = { 110 #define X_INTRNAMES 0 111 { .n_name = "_intrnames" }, 112 #define X_EINTRNAMES 1 113 { .n_name = "_eintrnames" }, 114 #define X_INTRCNT 2 115 { .n_name = "_intrcnt" }, 116 #define X_EINTRCNT 3 117 { .n_name = "_eintrcnt" }, 118 #define X_ALLEVENTS 4 119 { .n_name = "_allevents" }, 120 { .n_name = NULL } 121 }; 122 123 /* 124 * These constants define where the major pieces are laid out 125 */ 126 #define STATROW 0 /* uses 1 row and 68 cols */ 127 #define STATCOL 2 128 #define MEMROW 9 /* uses 5 rows and 31 cols */ 129 #define MEMCOL 0 130 #define PAGEROW 2 /* uses 4 rows and 26 cols */ 131 #define PAGECOL 54 132 #define INTSROW 9 /* uses all rows to bottom and 17 cols */ 133 #define INTSCOL 40 134 #define INTSCOLEND (VMSTATCOL - 0) 135 #define PROCSROW 2 /* uses 2 rows and 20 cols */ 136 #define PROCSCOL 0 137 #define GENSTATROW 2 /* uses 2 rows and 30 cols */ 138 #define GENSTATCOL 17 139 #define VMSTATROW 7 /* uses 17 rows and 15 cols */ 140 #define VMSTATCOL 64 141 #define GRAPHROW 5 /* uses 3 rows and 51 cols */ 142 #define GRAPHCOL 0 143 #define NAMEIROW 15 /* uses 3 rows and 38 cols (must be MEMROW + 5 + 1) */ 144 #define NAMEICOL 0 145 #define DISKROW 19 /* uses 5 rows and 50 cols (for 9 drives) */ 146 #define DISKCOL 0 147 #define DISKCOLWIDTH 8 148 #define DISKCOLEND INTSCOL 149 150 typedef struct intr_evcnt intr_evcnt_t; 151 struct intr_evcnt { 152 char *ie_group; 153 char *ie_name; 154 u_int64_t *ie_count; /* kernel address... */ 155 int ie_loc; /* screen row */ 156 } *ie_head; 157 int nevcnt; 158 159 static void 160 get_interrupt_events(void) 161 { 162 struct evcntlist allevents; 163 struct evcnt evcnt, *evptr; 164 intr_evcnt_t *ie; 165 intr_evcnt_t *n; 166 167 if (!NREAD(X_ALLEVENTS, &allevents, sizeof allevents)) 168 return; 169 evptr = TAILQ_FIRST(&allevents); 170 for (; evptr != NULL; evptr = TAILQ_NEXT(&evcnt, ev_list)) { 171 if (!KREAD(evptr, &evcnt, sizeof evcnt)) 172 return; 173 if (evcnt.ev_type != EVCNT_TYPE_INTR) 174 continue; 175 n = realloc(ie_head, sizeof *ie * (nevcnt + 1)); 176 if (n == NULL) { 177 error("realloc failed"); 178 die(0); 179 } 180 ie_head = n; 181 ie = ie_head + nevcnt; 182 ie->ie_group = malloc(evcnt.ev_grouplen + 1); 183 ie->ie_name = malloc(evcnt.ev_namelen + 1); 184 if (ie->ie_group == NULL || ie->ie_name == NULL) 185 return; 186 if (!KREAD(evcnt.ev_group, ie->ie_group, evcnt.ev_grouplen + 1)) 187 return; 188 if (!KREAD(evcnt.ev_name, ie->ie_name, evcnt.ev_namelen + 1)) 189 return; 190 ie->ie_count = &evptr->ev_count; 191 ie->ie_loc = 0; 192 nevcnt++; 193 } 194 } 195 196 int 197 initvmstat(void) 198 { 199 static char *intrnamebuf; 200 char *cp; 201 int i; 202 203 if (intrnamebuf) 204 free(intrnamebuf); 205 if (intrname) 206 free(intrname); 207 if (intrloc) 208 free(intrloc); 209 210 if (namelist[0].n_type == 0) { 211 if (kvm_nlist(kd, namelist) && 212 namelist[X_ALLEVENTS].n_type == 0) { 213 nlisterr(namelist); 214 return(0); 215 } 216 } 217 hertz = stathz ? stathz : hz; 218 if (!drvinit(1)) 219 return(0); 220 221 /* Old style interrupt counts - deprecated */ 222 nintr = (namelist[X_EINTRCNT].n_value - 223 namelist[X_INTRCNT].n_value) / sizeof (long); 224 if (nintr) { 225 intrloc = calloc(nintr, sizeof (long)); 226 intrname = calloc(nintr, sizeof (long)); 227 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 228 namelist[X_INTRNAMES].n_value); 229 if (intrnamebuf == NULL || intrname == 0 || intrloc == 0) { 230 error("Out of memory\n"); 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 } 241 242 /* event counter interrupt counts */ 243 get_interrupt_events(); 244 245 nextintsrow = INTSROW + 1; 246 allocinfo(&s); 247 allocinfo(&s1); 248 allocinfo(&s2); 249 allocinfo(&z); 250 251 getinfo(&s2); 252 copyinfo(&s2, &s1); 253 return(1); 254 } 255 256 void 257 fetchvmstat(void) 258 { 259 time_t now; 260 261 time(&now); 262 strlcpy(buf, ctime(&now), sizeof(buf)); 263 buf[19] = '\0'; 264 getinfo(&s); 265 } 266 267 static void 268 print_ie_title(int i) 269 { 270 int width, name_width, group_width; 271 272 width = INTSCOLEND - (INTSCOL + 9); 273 if (width <= 0) 274 return; 275 276 move(ie_head[i].ie_loc, INTSCOL + 9); 277 group_width = strlen(ie_head[i].ie_group); 278 name_width = strlen(ie_head[i].ie_name); 279 width -= group_width + 1 + name_width; 280 if (width < 0) { 281 /* 282 * Screen to narrow for full strings 283 * This is all rather horrid, in some cases there are a lot 284 * of events in the same group, and in others the event 285 * name is "intr". There are also names which need 7 or 8 286 * columns before they become meaningful. 287 * This is a bad compromise. 288 */ 289 width = -width; 290 group_width -= (width + 1) / 2; 291 name_width -= width / 2; 292 /* some have the 'useful' name "intr", display their group */ 293 if (strcasecmp(ie_head[i].ie_name, "intr") == 0) { 294 group_width += name_width + 1; 295 name_width = 0; 296 } else { 297 if (group_width <= 3 || name_width < 0) { 298 /* don't display group */ 299 name_width += group_width + 1; 300 group_width = 0; 301 } 302 } 303 } 304 305 if (group_width != 0) { 306 printw("%-.*s", group_width, ie_head[i].ie_group); 307 if (name_width != 0) 308 printw(" "); 309 } 310 if (name_width != 0) 311 printw("%-.*s", name_width, ie_head[i].ie_name); 312 } 313 314 void 315 labelvmstat_top(void) 316 { 317 318 clear(); 319 320 mvprintw(STATROW, STATCOL + 4, "users Load"); 321 322 mvprintw(GENSTATROW, GENSTATCOL, " Csw Traps SysCal Intr Soft Fault"); 323 324 mvprintw(GRAPHROW, GRAPHCOL, 325 " . %% Sy . %% Us . %% Ni . %% In . %% Id"); 326 mvprintw(PROCSROW, PROCSCOL, "Proc:r d s"); 327 mvprintw(GRAPHROW + 1, GRAPHCOL, 328 "| | | | | | | | | | |"); 329 330 mvprintw(PAGEROW, PAGECOL + 8, "PAGING SWAPPING "); 331 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 332 mvprintw(PAGEROW + 2, PAGECOL, " ops "); 333 mvprintw(PAGEROW + 3, PAGECOL, "pages "); 334 } 335 336 void 337 labelvmstat(void) 338 { 339 int i; 340 341 /* Top few lines first */ 342 343 labelvmstat_top(); 344 345 /* Left hand column */ 346 347 mvprintw(MEMROW + 0, MEMCOL, "Anon %% zero "); 348 mvprintw(MEMROW + 1, MEMCOL, "Exec %% wired "); 349 mvprintw(MEMROW + 2, MEMCOL, "File %% inact "); 350 mvprintw(MEMROW + 3, MEMCOL, "Meta %% bufs "); 351 mvprintw(MEMROW + 4, MEMCOL, " (kB) real swaponly free"); 352 mvprintw(MEMROW + 5, MEMCOL, "Active "); 353 354 mvprintw(NAMEIROW, NAMEICOL, "Namei Sys-cache Proc-cache"); 355 mvprintw(NAMEIROW + 1, NAMEICOL, 356 " Calls hits %% hits %%"); 357 358 mvprintw(DISKROW, DISKCOL, "%*s", DISKCOLWIDTH, "Disks:"); 359 if (disk_horiz) { 360 mvprintw(DISKROW + 1, DISKCOL + 1, "seeks"); 361 mvprintw(DISKROW + 2, DISKCOL + 1, "xfers"); 362 mvprintw(DISKROW + 3, DISKCOL + 1, "bytes"); 363 mvprintw(DISKROW + 4, DISKCOL + 1, "%%busy"); 364 } else { 365 mvprintw(DISKROW, DISKCOL + 1 * DISKCOLWIDTH, "%*s", DISKCOLWIDTH, "seeks"); 366 mvprintw(DISKROW, DISKCOL + 2 * DISKCOLWIDTH, "%*s", DISKCOLWIDTH, "xfers"); 367 mvprintw(DISKROW, DISKCOL + 3 * DISKCOLWIDTH, "%*s", DISKCOLWIDTH, "bytes"); 368 mvprintw(DISKROW, DISKCOL + 4 * DISKCOLWIDTH, "%*s", DISKCOLWIDTH, "%busy"); 369 } 370 371 /* Middle column */ 372 373 mvprintw(INTSROW, INTSCOL + 9, "Interrupts"); 374 for (i = 0; i < nintr; i++) { 375 if (intrloc[i] == 0) 376 continue; 377 mvprintw(intrloc[i], INTSCOL + 9, "%-.*s", 378 INTSCOLEND - (INTSCOL + 9), intrname[i]); 379 } 380 for (i = 0; i < nevcnt; i++) { 381 if (ie_head[i].ie_loc == 0) 382 continue; 383 print_ie_title(i); 384 } 385 386 /* Right hand column */ 387 388 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "forks"); 389 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "fkppw"); 390 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "fksvm"); 391 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "pwait"); 392 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "relck"); 393 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "rlkok"); 394 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "noram"); 395 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "ndcpy"); 396 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "fltcp"); 397 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "zfod"); 398 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "cow"); 399 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "fmin"); 400 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "ftarg"); 401 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "itarg"); 402 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "flnan"); 403 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "pdfre"); 404 405 if (LINES - 1 > VMSTATROW + 16) 406 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "pdscn"); 407 } 408 409 #define X(s, s1, fld) {temp = (s).fld[i]; (s).fld[i] -= (s1).fld[i]; \ 410 if (display_mode == TIME) (s1).fld[i] = temp;} 411 #define Z(s, s1, fld) {temp = (s).nchstats.fld; \ 412 (s).nchstats.fld -= (s1).nchstats.fld; \ 413 if (display_mode == TIME) (s1).nchstats.fld = temp;} 414 #define PUTRATE(s, s1, fld, l, c, w) \ 415 {temp = (s).fld; (s).fld -= (s1).fld; \ 416 if (display_mode == TIME) (s1).fld = temp; \ 417 putint((int)((float)(s).fld/etime + 0.5), l, c, w);} 418 #define MAXFAIL 5 419 420 static char cpuchar[CPUSTATES] = { '=' , '>', '-', '%', ' ' }; 421 static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_INTR, CP_IDLE }; 422 423 void 424 show_vmstat_top(vmtotal_t *Total, uvmexp_sysctl_t *uvm, uvmexp_sysctl_t *uvm1) 425 { 426 float f1, f2; 427 int psiz; 428 int i, l, c; 429 struct { 430 struct uvmexp_sysctl *uvmexp; 431 } us, us1; 432 433 us.uvmexp = uvm; 434 us1.uvmexp = uvm1; 435 436 putint(ucount(), STATROW, STATCOL, 3); 437 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 438 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 439 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 440 mvaddstr(STATROW, STATCOL + 53, buf); 441 442 putint(Total->t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 443 putint(Total->t_dw, PROCSROW + 1, PROCSCOL + 6, 3); 444 putint(Total->t_sl, PROCSROW + 1, PROCSCOL + 9, 3); 445 446 PUTRATE(us, us1, uvmexp->swtch, GENSTATROW + 1, GENSTATCOL - 1, 7); 447 PUTRATE(us, us1, uvmexp->traps, GENSTATROW + 1, GENSTATCOL + 7, 6); 448 PUTRATE(us, us1, uvmexp->syscalls, GENSTATROW + 1, GENSTATCOL + 14, 6); 449 PUTRATE(us, us1, uvmexp->intrs, GENSTATROW + 1, GENSTATCOL + 21, 5); 450 PUTRATE(us, us1, uvmexp->softs, GENSTATROW + 1, GENSTATCOL + 27, 6); 451 PUTRATE(us, us1, uvmexp->faults, GENSTATROW + 1, GENSTATCOL + 34, 6); 452 453 /* 454 * XXX it sure would be nice if this did what top(1) does and showed 455 * the utilization of each CPU on a separate line, though perhaps IFF 456 * the screen is tall enough 457 */ 458 /* Last CPU state not calculated yet. */ 459 for (f2 = 0.0, psiz = 0, c = 0; c < CPUSTATES; c++) { 460 i = cpuorder[c]; 461 f1 = cputime(i); 462 f2 += f1; 463 l = (int) ((f2 + 1.0) / 2.0) - psiz; 464 if (c == 0) 465 putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0); 466 else 467 putfloat(f1, GRAPHROW, GRAPHCOL + 10 * c + 1, 5, 1, 0); 468 mvhline(GRAPHROW + 2, psiz, cpuchar[c], l); 469 psiz += l; 470 } 471 472 PUTRATE(us, us1, uvmexp->pageins, PAGEROW + 2, PAGECOL + 5, 5); 473 PUTRATE(us, us1, uvmexp->pdpageouts, PAGEROW + 2, PAGECOL + 10, 5); 474 PUTRATE(us, us1, uvmexp->pgswapin, PAGEROW + 3, PAGECOL + 5, 5); 475 PUTRATE(us, us1, uvmexp->pgswapout, PAGEROW + 3, PAGECOL + 10, 5); 476 } 477 478 void 479 showvmstat(void) 480 { 481 int inttotal; 482 int i, l, r, c; 483 static int failcnt = 0; 484 static int relabel = 0; 485 static int last_disks = 0; 486 static char pigs[] = "pigs"; 487 static u_long bufmem; 488 struct buf_sysctl *buffers; 489 int mib[6]; 490 size_t size; 491 int extraslop = 0; 492 493 if (relabel) { 494 labelvmstat(); 495 relabel = 0; 496 } 497 498 cpuswap(); 499 if (display_mode == TIME) { 500 drvswap(); 501 etime = cur.cp_etime; 502 /* < 5 ticks - ignore this trash */ 503 if ((etime * hertz) < 1.0) { 504 if (failcnt++ <= MAXFAIL) 505 return; 506 clear(); 507 mvprintw(2, 10, "The alternate system clock has died!"); 508 mvprintw(3, 10, "Reverting to ``pigs'' display."); 509 move(CMDLINE, 0); 510 refresh(); 511 failcnt = 0; 512 sleep(5); 513 command(pigs); 514 return; 515 } 516 } else 517 etime = 1.0; 518 519 show_vmstat_top(&s.Total, &s.uvmexp, &s1.uvmexp); 520 521 /* Memory totals */ 522 #define pgtokb(pg) ((pg) * (s.uvmexp.pagesize / 1024)) 523 524 putint(pgtokb(s.uvmexp.anonpages), MEMROW + 0, MEMCOL + 7, 10); 525 putint((s.uvmexp.anonpages * 100 + 0.5) / s.uvmexp.npages, MEMROW + 0, MEMCOL + 17, 4); 526 527 putint(pgtokb(s.uvmexp.zeropages), MEMROW + 0, MEMCOL + 30, 8); 528 529 putint(pgtokb(s.uvmexp.execpages), MEMROW + 1, MEMCOL + 7, 10); 530 putint((s.uvmexp.execpages * 100 + 0.5) / s.uvmexp.npages, MEMROW + 1, MEMCOL + 17, 4); 531 532 putint(pgtokb(s.uvmexp.wired), MEMROW + 1, MEMCOL + 30, 8); 533 534 putint(pgtokb(s.uvmexp.filepages), MEMROW + 2, MEMCOL + 7, 10); 535 putint((s.uvmexp.filepages * 100 + 0.5) / s.uvmexp.npages, MEMROW + 2, MEMCOL + 17, 4); 536 537 putint(pgtokb(s.uvmexp.inactive), MEMROW + 2, MEMCOL + 30, 8); 538 539 /* Get total size of metadata buffers */ 540 size = sizeof(bufmem); 541 if (sysctlbyname("vm.bufmem", &bufmem, &size, NULL, 0) < 0) { 542 error("can't get buffers size: %s\n", strerror(errno)); 543 return; 544 } 545 546 /* Get number of metadata buffers */ 547 size = 0; 548 buffers = NULL; 549 mib[0] = CTL_KERN; 550 mib[1] = KERN_BUF; 551 mib[2] = KERN_BUF_ALL; 552 mib[3] = KERN_BUF_ALL; 553 mib[4] = (int)sizeof(struct buf_sysctl); 554 mib[5] = INT_MAX; /* we want them all */ 555 again: 556 if (sysctl(mib, 6, NULL, &size, NULL, 0) < 0) { 557 error("can't get buffers size: %s\n", strerror(errno)); 558 return; 559 } 560 if (size == 0) { 561 error("buffers size is zero: %s\n", strerror(errno)); 562 return; 563 } 564 size += extraslop * sizeof(struct buf_sysctl); 565 buffers = malloc(size); 566 if (buffers == NULL) { 567 error("can't allocate buffers: %s\n", strerror(errno)); 568 return; 569 } 570 if (sysctl(mib, 6, buffers, &size, NULL, 0) < 0) { 571 free(buffers); 572 if (extraslop == 0) { 573 extraslop = 100; 574 goto again; 575 } 576 error("can't get buffers: %s\n", strerror(errno)); 577 return; 578 } 579 free(buffers); /* XXX there must be a better way! */ 580 nbuf = size / sizeof(struct buf_sysctl); 581 582 putint((int) (bufmem / 1024), MEMROW + 3, MEMCOL + 5, 12); 583 putint((int) ((bufmem * 100) + 0.5) / s.uvmexp.pagesize / s.uvmexp.npages, 584 MEMROW + 3, MEMCOL + 17, 4); 585 putint(nbuf, MEMROW + 3, MEMCOL + 30, 8); 586 587 putint(pgtokb(s.uvmexp.active), MEMROW + 5, MEMCOL + 7, 10); 588 putint(pgtokb(s.uvmexp.swpgonly), MEMROW + 5, MEMCOL + 18, 10); 589 putint(pgtokb(s.uvmexp.free), MEMROW + 5, MEMCOL + 28, 10); 590 591 #undef pgtokb 592 593 /* Namei cache */ 594 Z(s, s1, ncs_goodhits); Z(s, s1, ncs_badhits); Z(s, s1, ncs_miss); 595 Z(s, s1, ncs_long); Z(s, s1, ncs_pass2); Z(s, s1, ncs_2passes); 596 s.nchcount = s.nchstats.ncs_goodhits + s.nchstats.ncs_badhits + 597 s.nchstats.ncs_miss + s.nchstats.ncs_long + 598 s.nchstats.ncs_pass2 + s.nchstats.ncs_2passes; 599 if (display_mode == TIME) 600 s1.nchcount = s.nchcount; 601 602 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 603 putint(s.nchstats.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9); 604 #define nz(x) ((x) ? (x) : 1) 605 putfloat(s.nchstats.ncs_goodhits * 100.0 / nz(s.nchcount), 606 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 607 putint(s.nchstats.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 608 putfloat(s.nchstats.ncs_pass2 * 100.0 / nz(s.nchcount), 609 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 610 #undef nz 611 612 /* Disks */ 613 for (l = 0, i = 0, r = DISKROW, c = DISKCOL; 614 i < (int)ndrive; i++) { 615 if (!drv_select[i]) 616 continue; 617 618 if (disk_horiz) 619 c += DISKCOLWIDTH; 620 else 621 r++; 622 if (c + DISKCOLWIDTH > DISKCOLEND) { 623 if (disk_horiz && LINES - 1 - DISKROW > 624 (DISKCOLEND - DISKCOL) / DISKCOLWIDTH) { 625 disk_horiz = 0; 626 relabel = 1; 627 } 628 break; 629 } 630 if (r >= LINES - 1) { 631 if (!disk_horiz && LINES - 1 - DISKROW < 632 (DISKCOLEND - DISKCOL) / DISKCOLWIDTH) { 633 disk_horiz = 1; 634 relabel = 1; 635 } 636 break; 637 } 638 l++; 639 640 dinfo(i, r, c); 641 } 642 /* blank out if we lost any disks */ 643 for (i = l; i < last_disks; i++) { 644 int j; 645 if (disk_horiz) 646 c += DISKCOLWIDTH; 647 else 648 r++; 649 for (j = 0; j < 5; j++) { 650 if (disk_horiz) 651 mvprintw(r+j, c, "%*s", DISKCOLWIDTH, ""); 652 else 653 mvprintw(r, c+j*DISKCOLWIDTH, "%*s", DISKCOLWIDTH, ""); 654 } 655 } 656 last_disks = l; 657 658 /* Interrupts */ 659 failcnt = 0; 660 inttotal = 0; 661 for (i = 0; i < nintr; i++) { 662 if (s.intrcnt[i] == 0) 663 continue; 664 if (intrloc[i] == 0) { 665 if (nextintsrow == LINES) 666 continue; 667 intrloc[i] = nextintsrow++; 668 mvprintw(intrloc[i], INTSCOL + 9, "%-.*s", 669 INTSCOLEND - (INTSCOL + 9), intrname[i]); 670 } 671 X(s, s1, intrcnt); 672 l = (int)((float)s.intrcnt[i]/etime + 0.5); 673 inttotal += l; 674 putint(l, intrloc[i], INTSCOL, 8); 675 } 676 677 for (i = 0; i < nevcnt; i++) { 678 if (s.evcnt[i] == 0) 679 continue; 680 if (ie_head[i].ie_loc == 0) { 681 if (nextintsrow == LINES) 682 continue; 683 ie_head[i].ie_loc = nextintsrow++; 684 print_ie_title(i); 685 } 686 X(s, s1, evcnt); 687 l = (int)((float)s.evcnt[i]/etime + 0.5); 688 inttotal += l; 689 putint(l, ie_head[i].ie_loc, INTSCOL, 8); 690 } 691 putint(inttotal, INTSROW, INTSCOL, 8); 692 693 PUTRATE(s, s1, uvmexp.forks, VMSTATROW + 0, VMSTATCOL + 3, 6); 694 PUTRATE(s, s1, uvmexp.forks_ppwait, VMSTATROW + 1, VMSTATCOL + 3, 6); 695 PUTRATE(s, s1, uvmexp.forks_sharevm, VMSTATROW + 2, VMSTATCOL + 3, 6); 696 PUTRATE(s, s1, uvmexp.fltpgwait, VMSTATROW + 3, VMSTATCOL + 4, 5); 697 PUTRATE(s, s1, uvmexp.fltrelck, VMSTATROW + 4, VMSTATCOL + 3, 6); 698 PUTRATE(s, s1, uvmexp.fltrelckok, VMSTATROW + 5, VMSTATCOL + 3, 6); 699 PUTRATE(s, s1, uvmexp.fltnoram, VMSTATROW + 6, VMSTATCOL + 3, 6); 700 PUTRATE(s, s1, uvmexp.fltamcopy, VMSTATROW + 7, VMSTATCOL + 3, 6); 701 PUTRATE(s, s1, uvmexp.flt_prcopy, VMSTATROW + 8, VMSTATCOL + 3, 6); 702 PUTRATE(s, s1, uvmexp.flt_przero, VMSTATROW + 9, VMSTATCOL + 3, 6); 703 PUTRATE(s, s1, uvmexp.flt_acow, VMSTATROW + 10, VMSTATCOL, 9); 704 putint(s.uvmexp.freemin, VMSTATROW + 11, VMSTATCOL, 9); 705 putint(s.uvmexp.freetarg, VMSTATROW + 12, VMSTATCOL, 9); 706 putint(s.uvmexp.inactarg, VMSTATROW + 13, VMSTATCOL, 9); 707 putint(s.uvmexp.fltnoanon, VMSTATROW + 14, VMSTATCOL, 9); 708 PUTRATE(s, s1, uvmexp.pdfreed, VMSTATROW + 15, VMSTATCOL, 9); 709 if (LINES - 1 > VMSTATROW + 16) 710 PUTRATE(s, s1, uvmexp.pdscans, VMSTATROW + 16, VMSTATCOL, 9); 711 712 } 713 714 void 715 vmstat_boot(char *args) 716 { 717 copyinfo(&z, &s1); 718 display_mode = BOOT; 719 } 720 721 void 722 vmstat_run(char *args) 723 { 724 copyinfo(&s1, &s2); 725 display_mode = RUN; 726 } 727 728 void 729 vmstat_time(char *args) 730 { 731 display_mode = TIME; 732 } 733 734 void 735 vmstat_zero(char *args) 736 { 737 if (display_mode == RUN) 738 getinfo(&s1); 739 } 740 741 /* calculate number of users on the system */ 742 static int 743 ucount(void) 744 { 745 static int onusers = -1; 746 int nusers = 0; 747 struct utmpentry *ehead; 748 749 nusers = getutentries(NULL, &ehead); 750 751 if (nusers != onusers) { 752 if (nusers == 1) 753 mvprintw(STATROW, STATCOL + 8, " "); 754 else 755 mvprintw(STATROW, STATCOL + 8, "s"); 756 } 757 onusers = nusers; 758 return (nusers); 759 } 760 761 static float 762 cputime(int indx) 763 { 764 double t; 765 int i; 766 767 t = 0; 768 for (i = 0; i < CPUSTATES; i++) 769 t += cur.cp_time[i]; 770 if (t == 0.0) 771 t = 1.0; 772 return (cur.cp_time[indx] * 100.0 / t); 773 } 774 775 void 776 puthumanint(u_int64_t n, int l, int c, int w) 777 { 778 char b[128]; 779 780 if (move(l, c) != OK) 781 return; 782 if (n == 0) { 783 hline(' ', w); 784 return; 785 } 786 if (humanize_number(b, w, n, "", HN_AUTOSCALE, HN_NOSPACE) == -1 ) { 787 hline('*', w); 788 return; 789 } 790 printw("%*s", w, b); 791 } 792 793 void 794 putint(int n, int l, int c, int w) 795 { 796 char b[128]; 797 798 if (move(l, c) != OK) 799 return; 800 if (n == 0) { 801 hline(' ', w); 802 return; 803 } 804 (void)snprintf(b, sizeof b, "%*d", w, n); 805 if ((int)strlen(b) > w) { 806 if (display_mode == TIME) 807 hline('*', w); 808 else 809 puthumanint(n, l, c, w); 810 return; 811 } 812 addstr(b); 813 } 814 815 void 816 putfloat(double f, int l, int c, int w, int d, int nz) 817 { 818 char b[128]; 819 820 if (move(l, c) != OK) 821 return; 822 if (nz && f == 0.0) { 823 hline(' ', w); 824 return; 825 } 826 (void)snprintf(b, sizeof b, "%*.*f", w, d, f); 827 if ((int)strlen(b) > w) { 828 hline('*', w); 829 return; 830 } 831 addstr(b); 832 } 833 834 static void 835 getinfo(struct Info *stats) 836 { 837 int mib[2]; 838 size_t size; 839 int i; 840 841 cpureadstats(); 842 drvreadstats(); 843 size = sizeof(stats->nchstats); 844 if (sysctlbyname("vfs.namecache_stats", &stats->nchstats, &size, 845 NULL, 0) < 0) { 846 error("can't get namecache statistics: %s\n", strerror(errno)); 847 memset(&stats->nchstats, 0, sizeof(stats->nchstats)); 848 } 849 if (nintr) 850 NREAD(X_INTRCNT, stats->intrcnt, nintr * sizeof(long)); 851 for (i = 0; i < nevcnt; i++) 852 KREAD(ie_head[i].ie_count, &stats->evcnt[i], 853 sizeof stats->evcnt[i]); 854 size = sizeof(stats->uvmexp); 855 mib[0] = CTL_VM; 856 mib[1] = VM_UVMEXP2; 857 if (sysctl(mib, 2, &stats->uvmexp, &size, NULL, 0) < 0) { 858 error("can't get uvmexp: %s\n", strerror(errno)); 859 memset(&stats->uvmexp, 0, sizeof(stats->uvmexp)); 860 } 861 size = sizeof(stats->Total); 862 mib[0] = CTL_VM; 863 mib[1] = VM_METER; 864 if (sysctl(mib, 2, &stats->Total, &size, NULL, 0) < 0) { 865 error("Can't get kernel info: %s\n", strerror(errno)); 866 memset(&stats->Total, 0, sizeof(stats->Total)); 867 } 868 } 869 870 static void 871 allocinfo(struct Info *stats) 872 { 873 874 if (nintr && 875 (stats->intrcnt = calloc(nintr, sizeof(long))) == NULL) { 876 error("calloc failed"); 877 die(0); 878 } 879 if ((stats->evcnt = calloc(nevcnt, sizeof(u_int64_t))) == NULL) { 880 error("calloc failed"); 881 die(0); 882 } 883 } 884 885 static void 886 copyinfo(struct Info *from, struct Info *to) 887 { 888 long *intrcnt; 889 u_int64_t *evcnt; 890 891 intrcnt = to->intrcnt; 892 evcnt = to->evcnt; 893 *to = *from; 894 memmove(to->intrcnt = intrcnt, from->intrcnt, nintr * sizeof *intrcnt); 895 memmove(to->evcnt = evcnt, from->evcnt, nevcnt * sizeof *evcnt); 896 } 897 898 static void 899 dinfo(int dn, int r, int c) 900 { 901 double atime, dtime; 902 #define ADV if (disk_horiz) r++; else c += DISKCOLWIDTH 903 904 /* elapsed time for disk stats */ 905 dtime = etime; 906 if (cur.timestamp[dn].tv_sec || cur.timestamp[dn].tv_usec) { 907 dtime = (double)cur.timestamp[dn].tv_sec + 908 ((double)cur.timestamp[dn].tv_usec / (double)1000000); 909 } 910 911 mvprintw(r, c, "%*.*s", DISKCOLWIDTH, DISKCOLWIDTH, dr_name[dn]); 912 ADV; 913 914 putint((int)(cur.seek[dn]/dtime+0.5), r, c, DISKCOLWIDTH); 915 ADV; 916 putint((int)((cur.rxfer[dn]+cur.wxfer[dn])/dtime+0.5), 917 r, c, DISKCOLWIDTH); 918 ADV; 919 puthumanint((cur.rbytes[dn] + cur.wbytes[dn]) / dtime + 0.5, 920 r, c, DISKCOLWIDTH); 921 ADV; 922 923 /* time busy in disk activity */ 924 atime = cur.time[dn].tv_sec + cur.time[dn].tv_usec / 1000000.0; 925 atime = atime * 100.0 / dtime; 926 if (atime >= 100) 927 putint(100, r, c, DISKCOLWIDTH); 928 else 929 putfloat(atime, r, c, DISKCOLWIDTH, 1, 1); 930 } 931
Indexes created Fri Sep 26 20:09:58 GMT 2025