vmstat.c revision 1.85
1 /* $NetBSD: vmstat.c,v 1.85 2019/01/25 15:31:11 christos 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 1.85 2019/01/25 15:31:11 christos 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 #include <curses.h> 57 58 #include "systat.h" 59 #include "extern.h" 60 #include "drvstats.h" 61 #include "utmpentry.h" 62 #include "vmstat.h" 63 64 static struct Info { 65 struct uvmexp_sysctl uvmexp; 66 struct vmtotal Total; 67 struct nchstats nchstats; 68 long nchcount; 69 long *intrcnt; 70 u_int64_t *evcnt; 71 } s, s1, s2, z; 72 73 enum display_mode display_mode = TIME; 74 75 static void allocinfo(struct Info *); 76 static void copyinfo(struct Info *, struct Info *); 77 static float cputime(int); 78 static void dinfo(int, int, int); 79 static void getinfo(struct Info *); 80 static int ucount(void); 81 82 static char buf[26]; 83 static u_int64_t temp; 84 static int nintr; 85 static long *intrloc; 86 static char **intrname; 87 static int nextintsrow; 88 static int disk_horiz = 1; 89 static u_int nbuf; 90 91 WINDOW * 92 openvmstat(void) 93 { 94 return (stdscr); 95 } 96 97 void 98 closevmstat(WINDOW *w) 99 { 100 101 if (w == NULL) 102 return; 103 wclear(w); 104 wrefresh(w); 105 } 106 107 108 static struct nlist namelist[] = { 109 #define X_INTRNAMES 0 110 { .n_name = "_intrnames" }, 111 #define X_EINTRNAMES 1 112 { .n_name = "_eintrnames" }, 113 #define X_INTRCNT 2 114 { .n_name = "_intrcnt" }, 115 #define X_EINTRCNT 3 116 { .n_name = "_eintrcnt" }, 117 #define X_ALLEVENTS 4 118 { .n_name = "_allevents" }, 119 { .n_name = NULL } 120 }; 121 122 /* 123 * These constants define where the major pieces are laid out 124 */ 125 #define STATROW 0 /* uses 1 row and 68 cols */ 126 #define STATCOL 2 127 #define MEMROW 9 /* uses 5 rows and 31 cols */ 128 #define MEMCOL 0 129 #define PAGEROW 2 /* uses 4 rows and 26 cols */ 130 #define PAGECOL 54 131 #define INTSROW 9 /* uses all rows to bottom and 17 cols */ 132 #define INTSCOL 40 133 #define INTSCOLEND (VMSTATCOL - 0) 134 #define PROCSROW 2 /* uses 2 rows and 20 cols */ 135 #define PROCSCOL 0 136 #define GENSTATROW 2 /* uses 2 rows and 30 cols */ 137 #define GENSTATCOL 17 138 #define VMSTATROW 7 /* uses 17 rows and 15 cols */ 139 #define VMSTATCOL 64 140 #define GRAPHROW 5 /* uses 3 rows and 51 cols */ 141 #define GRAPHCOL 0 142 #define NAMEIROW 15 /* uses 3 rows and 38 cols (must be MEMROW + 5 + 1) */ 143 #define NAMEICOL 0 144 #define DISKROW 19 /* uses 5 rows and 50 cols (for 9 drives) */ 145 #define DISKCOL 0 146 #define DISKCOLWIDTH 8 147 #define DISKCOLEND INTSCOL 148 149 typedef struct intr_evcnt intr_evcnt_t; 150 struct intr_evcnt { 151 char *ie_group; 152 char *ie_name; 153 u_int64_t *ie_count; /* kernel address... */ 154 int ie_loc; /* screen row */ 155 } *ie_head; 156 int nevcnt; 157 158 static void 159 get_interrupt_events(void) 160 { 161 struct evcntlist allevents; 162 struct evcnt evcnt, *evptr; 163 intr_evcnt_t *ie; 164 intr_evcnt_t *n; 165 166 if (!NREAD(X_ALLEVENTS, &allevents, sizeof allevents)) 167 return; 168 evptr = TAILQ_FIRST(&allevents); 169 for (; evptr != NULL; evptr = TAILQ_NEXT(&evcnt, ev_list)) { 170 if (!KREAD(evptr, &evcnt, sizeof evcnt)) 171 return; 172 if (evcnt.ev_type != EVCNT_TYPE_INTR) 173 continue; 174 n = realloc(ie_head, sizeof *ie * (nevcnt + 1)); 175 if (n == NULL) { 176 error("realloc failed"); 177 die(0); 178 } 179 ie_head = n; 180 ie = ie_head + nevcnt; 181 ie->ie_group = malloc(evcnt.ev_grouplen + 1); 182 ie->ie_name = malloc(evcnt.ev_namelen + 1); 183 if (ie->ie_group == NULL || ie->ie_name == NULL) 184 return; 185 if (!KREAD(evcnt.ev_group, ie->ie_group, evcnt.ev_grouplen + 1)) 186 return; 187 if (!KREAD(evcnt.ev_name, ie->ie_name, evcnt.ev_namelen + 1)) 188 return; 189 ie->ie_count = &evptr->ev_count; 190 ie->ie_loc = 0; 191 nevcnt++; 192 } 193 } 194 195 int 196 initvmstat(void) 197 { 198 static char *intrnamebuf; 199 char *cp; 200 int i; 201 202 if (intrnamebuf) 203 free(intrnamebuf); 204 if (intrname) 205 free(intrname); 206 if (intrloc) 207 free(intrloc); 208 209 if (namelist[0].n_type == 0) { 210 if (kvm_nlist(kd, namelist) && 211 namelist[X_ALLEVENTS].n_type == 0) { 212 nlisterr(namelist); 213 return(0); 214 } 215 } 216 hertz = stathz ? stathz : hz; 217 if (!drvinit(1)) 218 return(0); 219 220 /* Old style interrupt counts - deprecated */ 221 nintr = (namelist[X_EINTRCNT].n_value - 222 namelist[X_INTRCNT].n_value) / sizeof (long); 223 if (nintr) { 224 intrloc = calloc(nintr, sizeof (long)); 225 intrname = calloc(nintr, sizeof (long)); 226 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 227 namelist[X_INTRNAMES].n_value); 228 if (intrnamebuf == NULL || intrname == 0 || intrloc == 0) { 229 error("Out of memory\n"); 230 nintr = 0; 231 return(0); 232 } 233 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 234 NVAL(X_INTRNAMES)); 235 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 236 intrname[i] = cp; 237 cp += strlen(cp) + 1; 238 } 239 } 240 241 /* event counter interrupt counts */ 242 get_interrupt_events(); 243 244 nextintsrow = INTSROW + 1; 245 allocinfo(&s); 246 allocinfo(&s1); 247 allocinfo(&s2); 248 allocinfo(&z); 249 250 getinfo(&s2); 251 copyinfo(&s2, &s1); 252 return(1); 253 } 254 255 void 256 fetchvmstat(void) 257 { 258 time_t now; 259 260 time(&now); 261 strlcpy(buf, ctime(&now), sizeof(buf)); 262 buf[19] = '\0'; 263 getinfo(&s); 264 } 265 266 static void 267 print_ie_title(int i) 268 { 269 int width, name_width, group_width; 270 271 width = INTSCOLEND - (INTSCOL + 9); 272 if (width <= 0) 273 return; 274 275 move(ie_head[i].ie_loc, INTSCOL + 9); 276 group_width = strlen(ie_head[i].ie_group); 277 name_width = strlen(ie_head[i].ie_name); 278 width -= group_width + 1 + name_width; 279 if (width < 0) { 280 /* 281 * Screen to narrow for full strings 282 * This is all rather horrid, in some cases there are a lot 283 * of events in the same group, and in others the event 284 * name is "intr". There are also names which need 7 or 8 285 * columns before they become meaningful. 286 * This is a bad compromise. 287 */ 288 width = -width; 289 group_width -= (width + 1) / 2; 290 name_width -= width / 2; 291 /* some have the 'useful' name "intr", display their group */ 292 if (strcasecmp(ie_head[i].ie_name, "intr") == 0) { 293 group_width += name_width + 1; 294 name_width = 0; 295 } else { 296 if (group_width <= 3 || name_width < 0) { 297 /* don't display group */ 298 name_width += group_width + 1; 299 group_width = 0; 300 } 301 } 302 } 303 304 if (group_width != 0) { 305 printw("%-.*s", group_width, ie_head[i].ie_group); 306 if (name_width != 0) 307 printw(" "); 308 } 309 if (name_width != 0) 310 printw("%-.*s", name_width, ie_head[i].ie_name); 311 } 312 313 void 314 labelvmstat_top(void) 315 { 316 317 clear(); 318 319 mvprintw(STATROW, STATCOL + 4, "users Load"); 320 321 mvprintw(GENSTATROW, GENSTATCOL, " Csw Traps SysCal Intr Soft Fault"); 322 323 mvprintw(GRAPHROW, GRAPHCOL, 324 " . %% Sy . %% Us . %% Ni . %% In . %% Id"); 325 mvprintw(PROCSROW, PROCSCOL, "Proc:r d s"); 326 mvprintw(GRAPHROW + 1, GRAPHCOL, 327 "| | | | | | | | | | |"); 328 329 mvprintw(PAGEROW, PAGECOL + 8, "PAGING SWAPPING "); 330 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 331 mvprintw(PAGEROW + 2, PAGECOL, " ops "); 332 mvprintw(PAGEROW + 3, PAGECOL, "pages "); 333 } 334 335 void 336 labelvmstat(void) 337 { 338 int i; 339 340 /* Top few lines first */ 341 342 labelvmstat_top(); 343 344 /* Left hand column */ 345 346 mvprintw(MEMROW + 0, MEMCOL, "Anon %% zero "); 347 mvprintw(MEMROW + 1, MEMCOL, "Exec %% wired "); 348 mvprintw(MEMROW + 2, MEMCOL, "File %% inact "); 349 mvprintw(MEMROW + 3, MEMCOL, "Meta %% bufs "); 350 mvprintw(MEMROW + 4, MEMCOL, " (kB) real swaponly free"); 351 mvprintw(MEMROW + 5, MEMCOL, "Active "); 352 353 mvprintw(NAMEIROW, NAMEICOL, "Namei Sys-cache Proc-cache"); 354 mvprintw(NAMEIROW + 1, NAMEICOL, 355 " Calls hits %% hits %%"); 356 357 mvprintw(DISKROW, DISKCOL, "%*s", DISKCOLWIDTH, "Disks:"); 358 if (disk_horiz) { 359 mvprintw(DISKROW + 1, DISKCOL + 1, "seeks"); 360 mvprintw(DISKROW + 2, DISKCOL + 1, "xfers"); 361 mvprintw(DISKROW + 3, DISKCOL + 1, "bytes"); 362 mvprintw(DISKROW + 4, DISKCOL + 1, "%%busy"); 363 } else { 364 mvprintw(DISKROW, DISKCOL + 1 * DISKCOLWIDTH, "%*s", DISKCOLWIDTH, "seeks"); 365 mvprintw(DISKROW, DISKCOL + 2 * DISKCOLWIDTH, "%*s", DISKCOLWIDTH, "xfers"); 366 mvprintw(DISKROW, DISKCOL + 3 * DISKCOLWIDTH, "%*s", DISKCOLWIDTH, "bytes"); 367 mvprintw(DISKROW, DISKCOL + 4 * DISKCOLWIDTH, "%*s", DISKCOLWIDTH, "%busy"); 368 } 369 370 /* Middle column */ 371 372 mvprintw(INTSROW, INTSCOL + 9, "Interrupts"); 373 for (i = 0; i < nintr; i++) { 374 if (intrloc[i] == 0) 375 continue; 376 mvprintw(intrloc[i], INTSCOL + 9, "%-.*s", 377 INTSCOLEND - (INTSCOL + 9), intrname[i]); 378 } 379 for (i = 0; i < nevcnt; i++) { 380 if (ie_head[i].ie_loc == 0) 381 continue; 382 print_ie_title(i); 383 } 384 385 /* Right hand column */ 386 387 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "forks"); 388 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "fkppw"); 389 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "fksvm"); 390 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "pwait"); 391 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "relck"); 392 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "rlkok"); 393 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "noram"); 394 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "ndcpy"); 395 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "fltcp"); 396 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "zfod"); 397 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "cow"); 398 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "fmin"); 399 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "ftarg"); 400 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "itarg"); 401 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "flnan"); 402 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "pdfre"); 403 404 if (LINES - 1 > VMSTATROW + 16) 405 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "pdscn"); 406 } 407 408 #define X(s, s1, fld) {temp = (s).fld[i]; (s).fld[i] -= (s1).fld[i]; \ 409 if (display_mode == TIME) (s1).fld[i] = temp;} 410 #define Z(s, s1, fld) {temp = (s).nchstats.fld; \ 411 (s).nchstats.fld -= (s1).nchstats.fld; \ 412 if (display_mode == TIME) (s1).nchstats.fld = temp;} 413 #define PUTRATE(s, s1, fld, l, c, w) \ 414 {temp = (s).fld; (s).fld -= (s1).fld; \ 415 if (display_mode == TIME) (s1).fld = temp; \ 416 putint((int)((float)(s).fld/etime + 0.5), l, c, w);} 417 418 static char cpuchar[CPUSTATES] = { '=' , '>', '-', '%', ' ' }; 419 static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_INTR, CP_IDLE }; 420 421 void 422 show_vmstat_top(vmtotal_t *Total, uvmexp_sysctl_t *uvm, uvmexp_sysctl_t *uvm1) 423 { 424 float f1, f2; 425 int psiz; 426 int i, l, c; 427 struct { 428 struct uvmexp_sysctl *uvmexp; 429 } us, us1; 430 431 us.uvmexp = uvm; 432 us1.uvmexp = uvm1; 433 434 putint(ucount(), STATROW, STATCOL, 3); 435 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 436 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 437 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 438 mvaddstr(STATROW, STATCOL + 53, buf); 439 440 putint(Total->t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 441 putint(Total->t_dw, PROCSROW + 1, PROCSCOL + 6, 3); 442 putint(Total->t_sl, PROCSROW + 1, PROCSCOL + 9, 3); 443 444 PUTRATE(us, us1, uvmexp->swtch, GENSTATROW + 1, GENSTATCOL - 1, 7); 445 PUTRATE(us, us1, uvmexp->traps, GENSTATROW + 1, GENSTATCOL + 7, 6); 446 PUTRATE(us, us1, uvmexp->syscalls, GENSTATROW + 1, GENSTATCOL + 14, 6); 447 PUTRATE(us, us1, uvmexp->intrs, GENSTATROW + 1, GENSTATCOL + 21, 5); 448 PUTRATE(us, us1, uvmexp->softs, GENSTATROW + 1, GENSTATCOL + 27, 6); 449 PUTRATE(us, us1, uvmexp->faults, GENSTATROW + 1, GENSTATCOL + 34, 6); 450 451 /* 452 * XXX it sure would be nice if this did what top(1) does and showed 453 * the utilization of each CPU on a separate line, though perhaps IFF 454 * the screen is tall enough 455 */ 456 /* Last CPU state not calculated yet. */ 457 for (f2 = 0.0, psiz = 0, c = 0; c < CPUSTATES; c++) { 458 i = cpuorder[c]; 459 f1 = cputime(i); 460 f2 += f1; 461 l = (int) ((f2 + 1.0) / 2.0) - psiz; 462 if (c == 0) 463 putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0); 464 else 465 putfloat(f1, GRAPHROW, GRAPHCOL + 10 * c + 1, 5, 1, 0); 466 mvhline(GRAPHROW + 2, psiz, cpuchar[c], l); 467 psiz += l; 468 } 469 470 PUTRATE(us, us1, uvmexp->pageins, PAGEROW + 2, PAGECOL + 5, 5); 471 PUTRATE(us, us1, uvmexp->pdpageouts, PAGEROW + 2, PAGECOL + 10, 5); 472 PUTRATE(us, us1, uvmexp->pgswapin, PAGEROW + 3, PAGECOL + 5, 5); 473 PUTRATE(us, us1, uvmexp->pgswapout, PAGEROW + 3, PAGECOL + 10, 5); 474 } 475 476 void 477 showvmstat(void) 478 { 479 int inttotal; 480 int i, l, r, c; 481 static int failcnt = 0; 482 static int relabel = 0; 483 static int last_disks = 0; 484 static u_long bufmem; 485 struct buf_sysctl *buffers; 486 int mib[6]; 487 size_t size; 488 int extraslop = 0; 489 490 if (relabel) { 491 labelvmstat(); 492 relabel = 0; 493 } 494 495 cpuswap(); 496 if (display_mode == TIME) { 497 drvswap(); 498 if (toofast(&failcnt)) 499 return; 500 } else 501 etime = 1.0; 502 503 show_vmstat_top(&s.Total, &s.uvmexp, &s1.uvmexp); 504 505 /* Memory totals */ 506 #define pgtokb(pg) ((pg) * (s.uvmexp.pagesize / 1024)) 507 508 putint(pgtokb(s.uvmexp.anonpages), MEMROW + 0, MEMCOL + 7, 10); 509 putint((s.uvmexp.anonpages * 100 + 0.5) / s.uvmexp.npages, MEMROW + 0, MEMCOL + 17, 4); 510 511 putint(pgtokb(s.uvmexp.zeropages), MEMROW + 0, MEMCOL + 30, 8); 512 513 putint(pgtokb(s.uvmexp.execpages), MEMROW + 1, MEMCOL + 7, 10); 514 putint((s.uvmexp.execpages * 100 + 0.5) / s.uvmexp.npages, MEMROW + 1, MEMCOL + 17, 4); 515 516 putint(pgtokb(s.uvmexp.wired), MEMROW + 1, MEMCOL + 30, 8); 517 518 putint(pgtokb(s.uvmexp.filepages), MEMROW + 2, MEMCOL + 7, 10); 519 putint((s.uvmexp.filepages * 100 + 0.5) / s.uvmexp.npages, MEMROW + 2, MEMCOL + 17, 4); 520 521 putint(pgtokb(s.uvmexp.inactive), MEMROW + 2, MEMCOL + 30, 8); 522 523 /* Get total size of metadata buffers */ 524 size = sizeof(bufmem); 525 if (sysctlbyname("vm.bufmem", &bufmem, &size, NULL, 0) < 0) { 526 error("can't get buffers size: %s\n", strerror(errno)); 527 return; 528 } 529 530 /* Get number of metadata buffers */ 531 size = 0; 532 buffers = NULL; 533 mib[0] = CTL_KERN; 534 mib[1] = KERN_BUF; 535 mib[2] = KERN_BUF_ALL; 536 mib[3] = KERN_BUF_ALL; 537 mib[4] = (int)sizeof(struct buf_sysctl); 538 mib[5] = INT_MAX; /* we want them all */ 539 again: 540 if (sysctl(mib, 6, NULL, &size, NULL, 0) < 0) { 541 error("can't get buffers size: %s\n", strerror(errno)); 542 return; 543 } 544 if (size == 0) { 545 error("buffers size is zero: %s\n", strerror(errno)); 546 return; 547 } 548 size += extraslop * sizeof(struct buf_sysctl); 549 buffers = malloc(size); 550 if (buffers == NULL) { 551 error("can't allocate buffers: %s\n", strerror(errno)); 552 return; 553 } 554 if (sysctl(mib, 6, buffers, &size, NULL, 0) < 0) { 555 free(buffers); 556 if (extraslop == 0) { 557 extraslop = 100; 558 goto again; 559 } 560 error("can't get buffers: %s\n", strerror(errno)); 561 return; 562 } 563 free(buffers); /* XXX there must be a better way! */ 564 nbuf = size / sizeof(struct buf_sysctl); 565 566 putint((int) (bufmem / 1024), MEMROW + 3, MEMCOL + 5, 12); 567 putint((int) ((bufmem * 100) + 0.5) / s.uvmexp.pagesize / s.uvmexp.npages, 568 MEMROW + 3, MEMCOL + 17, 4); 569 putint(nbuf, MEMROW + 3, MEMCOL + 30, 8); 570 571 putint(pgtokb(s.uvmexp.active), MEMROW + 5, MEMCOL + 7, 10); 572 putint(pgtokb(s.uvmexp.swpgonly), MEMROW + 5, MEMCOL + 18, 10); 573 putint(pgtokb(s.uvmexp.free), MEMROW + 5, MEMCOL + 28, 10); 574 575 #undef pgtokb 576 577 /* Namei cache */ 578 Z(s, s1, ncs_goodhits); Z(s, s1, ncs_badhits); Z(s, s1, ncs_miss); 579 Z(s, s1, ncs_long); Z(s, s1, ncs_pass2); Z(s, s1, ncs_2passes); 580 s.nchcount = s.nchstats.ncs_goodhits + s.nchstats.ncs_badhits + 581 s.nchstats.ncs_miss + s.nchstats.ncs_long + 582 s.nchstats.ncs_pass2 + s.nchstats.ncs_2passes; 583 if (display_mode == TIME) 584 s1.nchcount = s.nchcount; 585 586 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 587 putint(s.nchstats.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9); 588 #define nz(x) ((x) ? (x) : 1) 589 putfloat(s.nchstats.ncs_goodhits * 100.0 / nz(s.nchcount), 590 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 591 putint(s.nchstats.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 592 putfloat(s.nchstats.ncs_pass2 * 100.0 / nz(s.nchcount), 593 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 594 #undef nz 595 596 /* Disks */ 597 for (l = 0, i = 0, r = DISKROW, c = DISKCOL; 598 i < (int)ndrive; i++) { 599 if (!drv_select[i]) 600 continue; 601 602 if (disk_horiz) 603 c += DISKCOLWIDTH; 604 else 605 r++; 606 if (c + DISKCOLWIDTH > DISKCOLEND) { 607 if (disk_horiz && LINES - 1 - DISKROW > 608 (DISKCOLEND - DISKCOL) / DISKCOLWIDTH) { 609 disk_horiz = 0; 610 relabel = 1; 611 } 612 break; 613 } 614 if (r >= LINES - 1) { 615 if (!disk_horiz && LINES - 1 - DISKROW < 616 (DISKCOLEND - DISKCOL) / DISKCOLWIDTH) { 617 disk_horiz = 1; 618 relabel = 1; 619 } 620 break; 621 } 622 l++; 623 624 dinfo(i, r, c); 625 } 626 /* blank out if we lost any disks */ 627 for (i = l; i < last_disks; i++) { 628 int j; 629 if (disk_horiz) 630 c += DISKCOLWIDTH; 631 else 632 r++; 633 for (j = 0; j < 5; j++) { 634 if (disk_horiz) 635 mvprintw(r+j, c, "%*s", DISKCOLWIDTH, ""); 636 else 637 mvprintw(r, c+j*DISKCOLWIDTH, "%*s", DISKCOLWIDTH, ""); 638 } 639 } 640 last_disks = l; 641 642 /* Interrupts */ 643 failcnt = 0; 644 inttotal = 0; 645 for (i = 0; i < nintr; i++) { 646 if (s.intrcnt[i] == 0) 647 continue; 648 if (intrloc[i] == 0) { 649 if (nextintsrow == LINES) 650 continue; 651 intrloc[i] = nextintsrow++; 652 mvprintw(intrloc[i], INTSCOL + 9, "%-.*s", 653 INTSCOLEND - (INTSCOL + 9), intrname[i]); 654 } 655 X(s, s1, intrcnt); 656 l = (int)((float)s.intrcnt[i]/etime + 0.5); 657 inttotal += l; 658 putint(l, intrloc[i], INTSCOL, 8); 659 } 660 661 for (i = 0; i < nevcnt; i++) { 662 if (s.evcnt[i] == 0) 663 continue; 664 if (ie_head[i].ie_loc == 0) { 665 if (nextintsrow == LINES) 666 continue; 667 ie_head[i].ie_loc = nextintsrow++; 668 print_ie_title(i); 669 } 670 X(s, s1, evcnt); 671 l = (int)((float)s.evcnt[i]/etime + 0.5); 672 inttotal += l; 673 putint(l, ie_head[i].ie_loc, INTSCOL, 8); 674 } 675 putint(inttotal, INTSROW, INTSCOL, 8); 676 677 PUTRATE(s, s1, uvmexp.forks, VMSTATROW + 0, VMSTATCOL + 3, 6); 678 PUTRATE(s, s1, uvmexp.forks_ppwait, VMSTATROW + 1, VMSTATCOL + 3, 6); 679 PUTRATE(s, s1, uvmexp.forks_sharevm, VMSTATROW + 2, VMSTATCOL + 3, 6); 680 PUTRATE(s, s1, uvmexp.fltpgwait, VMSTATROW + 3, VMSTATCOL + 4, 5); 681 PUTRATE(s, s1, uvmexp.fltrelck, VMSTATROW + 4, VMSTATCOL + 3, 6); 682 PUTRATE(s, s1, uvmexp.fltrelckok, VMSTATROW + 5, VMSTATCOL + 3, 6); 683 PUTRATE(s, s1, uvmexp.fltnoram, VMSTATROW + 6, VMSTATCOL + 3, 6); 684 PUTRATE(s, s1, uvmexp.fltamcopy, VMSTATROW + 7, VMSTATCOL + 3, 6); 685 PUTRATE(s, s1, uvmexp.flt_prcopy, VMSTATROW + 8, VMSTATCOL + 3, 6); 686 PUTRATE(s, s1, uvmexp.flt_przero, VMSTATROW + 9, VMSTATCOL + 3, 6); 687 PUTRATE(s, s1, uvmexp.flt_acow, VMSTATROW + 10, VMSTATCOL, 9); 688 putint(s.uvmexp.freemin, VMSTATROW + 11, VMSTATCOL, 9); 689 putint(s.uvmexp.freetarg, VMSTATROW + 12, VMSTATCOL, 9); 690 putint(s.uvmexp.inactarg, VMSTATROW + 13, VMSTATCOL, 9); 691 putint(s.uvmexp.fltnoanon, VMSTATROW + 14, VMSTATCOL, 9); 692 PUTRATE(s, s1, uvmexp.pdfreed, VMSTATROW + 15, VMSTATCOL, 9); 693 if (LINES - 1 > VMSTATROW + 16) 694 PUTRATE(s, s1, uvmexp.pdscans, VMSTATROW + 16, VMSTATCOL, 9); 695 696 } 697 698 void 699 vmstat_boot(char *args) 700 { 701 copyinfo(&z, &s1); 702 display_mode = BOOT; 703 } 704 705 void 706 vmstat_run(char *args) 707 { 708 copyinfo(&s1, &s2); 709 display_mode = RUN; 710 } 711 712 void 713 vmstat_time(char *args) 714 { 715 display_mode = TIME; 716 } 717 718 void 719 vmstat_zero(char *args) 720 { 721 if (display_mode == RUN) 722 getinfo(&s1); 723 } 724 725 /* calculate number of users on the system */ 726 static int 727 ucount(void) 728 { 729 static int onusers = -1; 730 int nusers = 0; 731 struct utmpentry *ehead; 732 733 nusers = getutentries(NULL, &ehead); 734 735 if (nusers != onusers) { 736 if (nusers == 1) 737 mvprintw(STATROW, STATCOL + 8, " "); 738 else 739 mvprintw(STATROW, STATCOL + 8, "s"); 740 } 741 onusers = nusers; 742 return (nusers); 743 } 744 745 static float 746 cputime(int indx) 747 { 748 double t; 749 int i; 750 751 t = 0; 752 for (i = 0; i < CPUSTATES; i++) 753 t += cur.cp_time[i]; 754 if (t == 0.0) 755 t = 1.0; 756 return (cur.cp_time[indx] * 100.0 / t); 757 } 758 759 void 760 puthumanint(u_int64_t n, int l, int c, int w) 761 { 762 char b[128]; 763 764 if (move(l, c) != OK) 765 return; 766 if (n == 0) { 767 hline(' ', w); 768 return; 769 } 770 if (humanize_number(b, w, n, "", HN_AUTOSCALE, HN_NOSPACE) == -1 ) { 771 hline('*', w); 772 return; 773 } 774 printw("%*s", w, b); 775 } 776 777 void 778 putint(int n, int l, int c, int w) 779 { 780 char b[128]; 781 782 if (move(l, c) != OK) 783 return; 784 if (n == 0) { 785 hline(' ', w); 786 return; 787 } 788 (void)snprintf(b, sizeof b, "%*d", w, n); 789 if ((int)strlen(b) > w) { 790 if (display_mode == TIME) 791 hline('*', w); 792 else 793 puthumanint(n, l, c, w); 794 return; 795 } 796 addstr(b); 797 } 798 799 void 800 putfloat(double f, int l, int c, int w, int d, int nz) 801 { 802 char b[128]; 803 804 if (move(l, c) != OK) 805 return; 806 if (nz && f == 0.0) { 807 hline(' ', w); 808 return; 809 } 810 (void)snprintf(b, sizeof b, "%*.*f", w, d, f); 811 if ((int)strlen(b) > w) { 812 hline('*', w); 813 return; 814 } 815 addstr(b); 816 } 817 818 static void 819 getinfo(struct Info *stats) 820 { 821 int mib[2]; 822 size_t size; 823 int i; 824 825 cpureadstats(); 826 drvreadstats(); 827 size = sizeof(stats->nchstats); 828 if (sysctlbyname("vfs.namecache_stats", &stats->nchstats, &size, 829 NULL, 0) < 0) { 830 error("can't get namecache statistics: %s\n", strerror(errno)); 831 memset(&stats->nchstats, 0, sizeof(stats->nchstats)); 832 } 833 if (nintr) 834 NREAD(X_INTRCNT, stats->intrcnt, nintr * sizeof(long)); 835 for (i = 0; i < nevcnt; i++) 836 KREAD(ie_head[i].ie_count, &stats->evcnt[i], 837 sizeof stats->evcnt[i]); 838 size = sizeof(stats->uvmexp); 839 mib[0] = CTL_VM; 840 mib[1] = VM_UVMEXP2; 841 if (sysctl(mib, 2, &stats->uvmexp, &size, NULL, 0) < 0) { 842 error("can't get uvmexp: %s\n", strerror(errno)); 843 memset(&stats->uvmexp, 0, sizeof(stats->uvmexp)); 844 } 845 size = sizeof(stats->Total); 846 mib[0] = CTL_VM; 847 mib[1] = VM_METER; 848 if (sysctl(mib, 2, &stats->Total, &size, NULL, 0) < 0) { 849 error("Can't get kernel info: %s\n", strerror(errno)); 850 memset(&stats->Total, 0, sizeof(stats->Total)); 851 } 852 } 853 854 static void 855 allocinfo(struct Info *stats) 856 { 857 858 if (nintr && 859 (stats->intrcnt = calloc(nintr, sizeof(long))) == NULL) { 860 error("calloc failed"); 861 die(0); 862 } 863 if ((stats->evcnt = calloc(nevcnt, sizeof(u_int64_t))) == NULL) { 864 error("calloc failed"); 865 die(0); 866 } 867 } 868 869 static void 870 copyinfo(struct Info *from, struct Info *to) 871 { 872 long *intrcnt; 873 u_int64_t *evcnt; 874 875 intrcnt = to->intrcnt; 876 evcnt = to->evcnt; 877 *to = *from; 878 memmove(to->intrcnt = intrcnt, from->intrcnt, nintr * sizeof *intrcnt); 879 memmove(to->evcnt = evcnt, from->evcnt, nevcnt * sizeof *evcnt); 880 } 881 882 static void 883 dinfo(int dn, int r, int c) 884 { 885 double atime, dtime; 886 #define ADV if (disk_horiz) r++; else c += DISKCOLWIDTH 887 888 /* elapsed time for disk stats */ 889 dtime = etime; 890 if (cur.timestamp[dn].tv_sec || cur.timestamp[dn].tv_usec) { 891 dtime = (double)cur.timestamp[dn].tv_sec + 892 ((double)cur.timestamp[dn].tv_usec / (double)1000000); 893 } 894 895 mvprintw(r, c, "%*.*s", DISKCOLWIDTH, DISKCOLWIDTH, dr_name[dn]); 896 ADV; 897 898 putint((int)(cur.seek[dn]/dtime+0.5), r, c, DISKCOLWIDTH); 899 ADV; 900 putint((int)((cur.rxfer[dn]+cur.wxfer[dn])/dtime+0.5), 901 r, c, DISKCOLWIDTH); 902 ADV; 903 puthumanint((cur.rbytes[dn] + cur.wbytes[dn]) / dtime + 0.5, 904 r, c, DISKCOLWIDTH); 905 ADV; 906 907 /* time busy in disk activity */ 908 atime = cur.time[dn].tv_sec + cur.time[dn].tv_usec / 1000000.0; 909 atime = atime * 100.0 / dtime; 910 if (atime >= 100) 911 putint(100, r, c, DISKCOLWIDTH); 912 else 913 putfloat(atime, r, c, DISKCOLWIDTH, 1, 1); 914 } 915
Indexes created Wed Sep 24 15:09:51 GMT 2025