vmstat.c revision 1.82.6.3
1 /* $NetBSD: vmstat.c,v 1.82.6.3 2020/04/13 08:05:48 martin 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 1.82.6.3 2020/04/13 08:05:48 martin 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 static int nintr; 84 static long *intrloc; 85 static char **intrname; 86 static int nextintsrow; 87 static int disk_horiz = 1; 88 static u_int nbuf; 89 90 WINDOW * 91 openvmstat(void) 92 { 93 return (stdscr); 94 } 95 96 void 97 closevmstat(WINDOW *w) 98 { 99 100 if (w == NULL) 101 return; 102 wclear(w); 103 wrefresh(w); 104 } 105 106 107 static struct nlist namelist[] = { 108 #define X_INTRNAMES 0 109 { .n_name = "_intrnames" }, 110 #define X_EINTRNAMES 1 111 { .n_name = "_eintrnames" }, 112 #define X_INTRCNT 2 113 { .n_name = "_intrcnt" }, 114 #define X_EINTRCNT 3 115 { .n_name = "_eintrcnt" }, 116 #define X_ALLEVENTS 4 117 { .n_name = "_allevents" }, 118 { .n_name = NULL } 119 }; 120 121 /* 122 * These constants define where the major pieces are laid out 123 */ 124 #define STATROW 0 /* uses 1 row and 68 cols */ 125 #define STATCOL 2 126 #define MEMROW 9 /* uses 5 rows and 31 cols */ 127 #define MEMCOL 0 128 #define PAGEROW 2 /* uses 4 rows and 26 cols */ 129 #define PAGECOL 54 130 #define INTSROW 9 /* uses all rows to bottom and 17 cols */ 131 #define INTSCOL 40 132 #define INTSCOLEND (VMSTATCOL - 0) 133 #define PROCSROW 2 /* uses 2 rows and 20 cols */ 134 #define PROCSCOL 0 135 #define GENSTATROW 2 /* uses 2 rows and 30 cols */ 136 #define GENSTATCOL 17 137 #define VMSTATROW 7 /* uses 17 rows and 15 cols */ 138 #define VMSTATCOL 64 139 #define GRAPHROW 5 /* uses 3 rows and 51 cols */ 140 #define GRAPHCOL 0 141 #define NAMEIROW 15 /* uses 3 rows and 38 cols (must be MEMROW + 5 + 1) */ 142 #define NAMEICOL 0 143 #define DISKROW 19 /* uses 5 rows and 50 cols (for 9 drives) */ 144 #define DISKCOL 0 145 #define DISKCOLWIDTH 8 146 #define DISKCOLEND INTSCOL 147 148 typedef struct intr_evcnt intr_evcnt_t; 149 struct intr_evcnt { 150 char *ie_group; 151 char *ie_name; 152 u_int64_t *ie_count; /* kernel address... */ 153 int ie_loc; /* screen row */ 154 } *ie_head; 155 int nevcnt; 156 157 static void 158 get_interrupt_events(void) 159 { 160 struct evcntlist allevents; 161 struct evcnt evcnt, *evptr; 162 intr_evcnt_t *ie; 163 intr_evcnt_t *n; 164 165 if (!NREAD(X_ALLEVENTS, &allevents, sizeof allevents)) 166 return; 167 evptr = TAILQ_FIRST(&allevents); 168 for (; evptr != NULL; evptr = TAILQ_NEXT(&evcnt, ev_list)) { 169 if (!KREAD(evptr, &evcnt, sizeof evcnt)) 170 return; 171 if (evcnt.ev_type != EVCNT_TYPE_INTR) 172 continue; 173 n = realloc(ie_head, sizeof *ie * (nevcnt + 1)); 174 if (n == NULL) { 175 error("realloc failed"); 176 die(0); 177 } 178 ie_head = n; 179 ie = ie_head + nevcnt; 180 ie->ie_group = malloc(evcnt.ev_grouplen + 1); 181 ie->ie_name = malloc(evcnt.ev_namelen + 1); 182 if (ie->ie_group == NULL || ie->ie_name == NULL) 183 return; 184 if (!KREAD(evcnt.ev_group, ie->ie_group, evcnt.ev_grouplen + 1)) 185 return; 186 if (!KREAD(evcnt.ev_name, ie->ie_name, evcnt.ev_namelen + 1)) 187 return; 188 ie->ie_count = &evptr->ev_count; 189 ie->ie_loc = 0; 190 nevcnt++; 191 } 192 } 193 194 int 195 initvmstat(void) 196 { 197 static char *intrnamebuf; 198 char *cp; 199 int i; 200 201 if (intrnamebuf) 202 free(intrnamebuf); 203 if (intrname) 204 free(intrname); 205 if (intrloc) 206 free(intrloc); 207 208 if (namelist[0].n_type == 0) { 209 if (kvm_nlist(kd, namelist) && 210 namelist[X_ALLEVENTS].n_type == 0) { 211 nlisterr(namelist); 212 return(0); 213 } 214 } 215 hertz = stathz ? stathz : hz; 216 if (!drvinit(1)) 217 return(0); 218 219 /* Old style interrupt counts - deprecated */ 220 nintr = (namelist[X_EINTRCNT].n_value - 221 namelist[X_INTRCNT].n_value) / sizeof (long); 222 if (nintr) { 223 intrloc = calloc(nintr, sizeof (long)); 224 intrname = calloc(nintr, sizeof (long)); 225 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 226 namelist[X_INTRNAMES].n_value); 227 if (intrnamebuf == NULL || intrname == 0 || intrloc == 0) { 228 error("Out of memory\n"); 229 nintr = 0; 230 return(0); 231 } 232 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 233 NVAL(X_INTRNAMES)); 234 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 235 intrname[i] = cp; 236 cp += strlen(cp) + 1; 237 } 238 } 239 240 /* event counter interrupt counts */ 241 get_interrupt_events(); 242 243 nextintsrow = INTSROW + 1; 244 allocinfo(&s); 245 allocinfo(&s1); 246 allocinfo(&s2); 247 allocinfo(&z); 248 249 getinfo(&s2); 250 copyinfo(&s2, &s1); 251 return(1); 252 } 253 254 void 255 fetchvmstat(void) 256 { 257 time_t now; 258 259 time(&now); 260 strlcpy(buf, ctime(&now), sizeof(buf)); 261 buf[19] = '\0'; 262 getinfo(&s); 263 } 264 265 static void 266 print_ie_title(int i) 267 { 268 int width, name_width, group_width; 269 270 width = INTSCOLEND - (INTSCOL + 9); 271 if (width <= 0) 272 return; 273 274 move(ie_head[i].ie_loc, INTSCOL + 9); 275 group_width = strlen(ie_head[i].ie_group); 276 name_width = strlen(ie_head[i].ie_name); 277 width -= group_width + 1 + name_width; 278 if (width < 0) { 279 /* 280 * Screen to narrow for full strings 281 * This is all rather horrid, in some cases there are a lot 282 * of events in the same group, and in others the event 283 * name is "intr". There are also names which need 7 or 8 284 * columns before they become meaningful. 285 * This is a bad compromise. 286 */ 287 width = -width; 288 group_width -= (width + 1) / 2; 289 name_width -= width / 2; 290 /* some have the 'useful' name "intr", display their group */ 291 if (strcasecmp(ie_head[i].ie_name, "intr") == 0) { 292 group_width += name_width + 1; 293 name_width = 0; 294 } else { 295 if (group_width <= 3 || name_width < 0) { 296 /* don't display group */ 297 name_width += group_width + 1; 298 group_width = 0; 299 } 300 } 301 } 302 303 if (group_width != 0) { 304 printw("%-.*s", group_width, ie_head[i].ie_group); 305 if (name_width != 0) 306 printw(" "); 307 } 308 if (name_width != 0) 309 printw("%-.*s", name_width, ie_head[i].ie_name); 310 } 311 312 void 313 labelvmstat_top(void) 314 { 315 316 clear(); 317 318 mvprintw(STATROW, STATCOL + 4, "users Load"); 319 320 mvprintw(GENSTATROW, GENSTATCOL, " Csw Traps SysCal Intr Soft Fault"); 321 322 mvprintw(GRAPHROW, GRAPHCOL, 323 " . %% Sy . %% Us . %% Ni . %% In . %% Id"); 324 mvprintw(PROCSROW, PROCSCOL, "Proc:r d s"); 325 mvprintw(GRAPHROW + 1, GRAPHCOL, 326 "| | | | | | | | | | |"); 327 328 mvprintw(PAGEROW, PAGECOL + 8, "PAGING SWAPPING "); 329 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 330 mvprintw(PAGEROW + 2, PAGECOL, " ops "); 331 mvprintw(PAGEROW + 3, PAGECOL, "pages "); 332 } 333 334 void 335 labelvmstat(void) 336 { 337 int i; 338 339 /* Top few lines first */ 340 341 labelvmstat_top(); 342 343 /* Left hand column */ 344 345 mvprintw(MEMROW + 0, MEMCOL, "Anon %% zero "); 346 mvprintw(MEMROW + 1, MEMCOL, "Exec %% wired "); 347 mvprintw(MEMROW + 2, MEMCOL, "File %% inact "); 348 mvprintw(MEMROW + 3, MEMCOL, "Meta %% bufs "); 349 mvprintw(MEMROW + 4, MEMCOL, " (kB) real swaponly free"); 350 mvprintw(MEMROW + 5, MEMCOL, "Active "); 351 352 mvprintw(NAMEIROW, NAMEICOL, "Namei Sys-cache Proc-cache"); 353 mvprintw(NAMEIROW + 1, NAMEICOL, 354 " Calls hits %% hits %%"); 355 356 mvprintw(DISKROW, DISKCOL, "%*s", DISKCOLWIDTH, "Disks:"); 357 if (disk_horiz) { 358 mvprintw(DISKROW + 1, DISKCOL + 1, "seeks"); 359 mvprintw(DISKROW + 2, DISKCOL + 1, "xfers"); 360 mvprintw(DISKROW + 3, DISKCOL + 1, "bytes"); 361 mvprintw(DISKROW + 4, DISKCOL + 1, "%%busy"); 362 } else { 363 mvprintw(DISKROW, DISKCOL + 1 * DISKCOLWIDTH, "%*s", DISKCOLWIDTH, "seeks"); 364 mvprintw(DISKROW, DISKCOL + 2 * DISKCOLWIDTH, "%*s", DISKCOLWIDTH, "xfers"); 365 mvprintw(DISKROW, DISKCOL + 3 * DISKCOLWIDTH, "%*s", DISKCOLWIDTH, "bytes"); 366 mvprintw(DISKROW, DISKCOL + 4 * DISKCOLWIDTH, "%*s", DISKCOLWIDTH, "%busy"); 367 } 368 369 /* Middle column */ 370 371 mvprintw(INTSROW, INTSCOL + 9, "Interrupts"); 372 for (i = 0; i < nintr; i++) { 373 if (intrloc[i] == 0) 374 continue; 375 mvprintw(intrloc[i], INTSCOL + 9, "%-.*s", 376 INTSCOLEND - (INTSCOL + 9), intrname[i]); 377 } 378 for (i = 0; i < nevcnt; i++) { 379 if (ie_head[i].ie_loc == 0) 380 continue; 381 print_ie_title(i); 382 } 383 384 /* Right hand column */ 385 386 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "forks"); 387 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "fkppw"); 388 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "fksvm"); 389 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "pwait"); 390 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "relck"); 391 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "rlkok"); 392 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "noram"); 393 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "ndcpy"); 394 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "fltcp"); 395 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "zfod"); 396 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "cow"); 397 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "fmin"); 398 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "ftarg"); 399 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "itarg"); 400 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "flnan"); 401 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "pdfre"); 402 403 if (LINES - 1 > VMSTATROW + 16) 404 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "pdscn"); 405 } 406 407 #define X(s, s1, fld) {temp = (s).fld[i]; (s).fld[i] -= (s1).fld[i]; \ 408 if (display_mode == TIME) (s1).fld[i] = temp;} 409 #define Z(s, s1, fld) {temp = (s).nchstats.fld; \ 410 (s).nchstats.fld -= (s1).nchstats.fld; \ 411 if (display_mode == TIME) (s1).nchstats.fld = temp;} 412 #define PUTRATE(s, s1, fld, l, c, w) \ 413 {temp = (s).fld; (s).fld -= (s1).fld; \ 414 if (display_mode == TIME) (s1).fld = temp; \ 415 putint((int)((float)(s).fld/etime + 0.5), l, c, w);} 416 417 static char cpuchar[CPUSTATES] = { '=' , '>', '-', '%', ' ' }; 418 static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_INTR, CP_IDLE }; 419 420 void 421 show_vmstat_top(vmtotal_t *Total, uvmexp_sysctl_t *uvm, uvmexp_sysctl_t *uvm1) 422 { 423 float f1, f2; 424 int psiz; 425 int i, l, c; 426 struct { 427 struct uvmexp_sysctl *uvmexp; 428 } us, us1; 429 430 us.uvmexp = uvm; 431 us1.uvmexp = uvm1; 432 433 putint(ucount(), STATROW, STATCOL, 3); 434 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 435 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 436 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 437 mvaddstr(STATROW, STATCOL + 53, buf); 438 439 putint(Total->t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 440 putint(Total->t_dw, PROCSROW + 1, PROCSCOL + 6, 3); 441 putint(Total->t_sl, PROCSROW + 1, PROCSCOL + 9, 3); 442 443 PUTRATE(us, us1, uvmexp->swtch, GENSTATROW + 1, GENSTATCOL - 1, 7); 444 PUTRATE(us, us1, uvmexp->traps, GENSTATROW + 1, GENSTATCOL + 7, 6); 445 PUTRATE(us, us1, uvmexp->syscalls, GENSTATROW + 1, GENSTATCOL + 14, 6); 446 PUTRATE(us, us1, uvmexp->intrs, GENSTATROW + 1, GENSTATCOL + 21, 5); 447 PUTRATE(us, us1, uvmexp->softs, GENSTATROW + 1, GENSTATCOL + 27, 6); 448 PUTRATE(us, us1, uvmexp->faults, GENSTATROW + 1, GENSTATCOL + 34, 6); 449 450 /* 451 * XXX it sure would be nice if this did what top(1) does and showed 452 * the utilization of each CPU on a separate line, though perhaps IFF 453 * the screen is tall enough 454 */ 455 /* Last CPU state not calculated yet. */ 456 for (f2 = 0.0, psiz = 0, c = 0; c < CPUSTATES; c++) { 457 i = cpuorder[c]; 458 f1 = cputime(i); 459 f2 += f1; 460 l = (int) ((f2 + 1.0) / 2.0) - psiz; 461 if (c == 0) 462 putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0); 463 else 464 putfloat(f1, GRAPHROW, GRAPHCOL + 10 * c + 1, 5, 1, 0); 465 mvhline(GRAPHROW + 2, psiz, cpuchar[c], l); 466 psiz += l; 467 } 468 469 PUTRATE(us, us1, uvmexp->pageins, PAGEROW + 2, PAGECOL + 5, 5); 470 PUTRATE(us, us1, uvmexp->pdpageouts, PAGEROW + 2, PAGECOL + 10, 5); 471 PUTRATE(us, us1, uvmexp->pgswapin, PAGEROW + 3, PAGECOL + 5, 5); 472 PUTRATE(us, us1, uvmexp->pgswapout, PAGEROW + 3, PAGECOL + 10, 5); 473 } 474 475 void 476 showvmstat(void) 477 { 478 int inttotal; 479 int i, l, r, c; 480 static int failcnt = 0; 481 static int relabel = 0; 482 static int last_disks = 0; 483 static u_long bufmem; 484 struct buf_sysctl *buffers; 485 int mib[6]; 486 size_t size; 487 int extraslop = 0; 488 489 if (relabel) { 490 labelvmstat(); 491 relabel = 0; 492 } 493 494 cpuswap(); 495 if (display_mode == TIME) { 496 drvswap(); 497 if (toofast(&failcnt)) 498 return; 499 } else 500 etime = 1.0; 501 502 show_vmstat_top(&s.Total, &s.uvmexp, &s1.uvmexp); 503 504 /* Memory totals */ 505 #define pgtokb(pg) ((pg) * (s.uvmexp.pagesize / 1024)) 506 507 putint(pgtokb(s.uvmexp.anonpages), MEMROW + 0, MEMCOL + 7, 10); 508 putint((s.uvmexp.anonpages * 100 + 0.5) / s.uvmexp.npages, MEMROW + 0, MEMCOL + 17, 4); 509 510 putint(pgtokb(s.uvmexp.zeropages), MEMROW + 0, MEMCOL + 30, 8); 511 512 putint(pgtokb(s.uvmexp.execpages), MEMROW + 1, MEMCOL + 7, 10); 513 putint((s.uvmexp.execpages * 100 + 0.5) / s.uvmexp.npages, MEMROW + 1, MEMCOL + 17, 4); 514 515 putint(pgtokb(s.uvmexp.wired), MEMROW + 1, MEMCOL + 30, 8); 516 517 putint(pgtokb(s.uvmexp.filepages), MEMROW + 2, MEMCOL + 7, 10); 518 putint((s.uvmexp.filepages * 100 + 0.5) / s.uvmexp.npages, MEMROW + 2, MEMCOL + 17, 4); 519 520 putint(pgtokb(s.uvmexp.inactive), MEMROW + 2, MEMCOL + 30, 8); 521 522 /* Get total size of metadata buffers */ 523 size = sizeof(bufmem); 524 if (sysctlbyname("vm.bufmem", &bufmem, &size, NULL, 0) < 0) { 525 error("can't get buffers size: %s\n", strerror(errno)); 526 return; 527 } 528 529 /* Get number of metadata buffers */ 530 size = 0; 531 buffers = NULL; 532 mib[0] = CTL_KERN; 533 mib[1] = KERN_BUF; 534 mib[2] = KERN_BUF_ALL; 535 mib[3] = KERN_BUF_ALL; 536 mib[4] = (int)sizeof(struct buf_sysctl); 537 mib[5] = INT_MAX; /* we want them all */ 538 again: 539 if (sysctl(mib, 6, NULL, &size, NULL, 0) < 0) { 540 error("can't get buffers size: %s\n", strerror(errno)); 541 return; 542 } 543 if (size == 0) { 544 error("buffers size is zero: %s\n", strerror(errno)); 545 return; 546 } 547 size += extraslop * sizeof(struct buf_sysctl); 548 buffers = malloc(size); 549 if (buffers == NULL) { 550 error("can't allocate buffers: %s\n", strerror(errno)); 551 return; 552 } 553 if (sysctl(mib, 6, buffers, &size, NULL, 0) < 0) { 554 free(buffers); 555 if (extraslop < 1000) { 556 extraslop += 100; 557 goto again; 558 } 559 error("can't get buffers: %s\n", strerror(errno)); 560 return; 561 } 562 free(buffers); /* XXX there must be a better way! */ 563 nbuf = size / sizeof(struct buf_sysctl); 564 565 putint((int) (bufmem / 1024), MEMROW + 3, MEMCOL + 5, 12); 566 putint((int) ((bufmem * 100) + 0.5) / s.uvmexp.pagesize / s.uvmexp.npages, 567 MEMROW + 3, MEMCOL + 17, 4); 568 putint(nbuf, MEMROW + 3, MEMCOL + 30, 8); 569 570 putint(pgtokb(s.uvmexp.active), MEMROW + 5, MEMCOL + 7, 10); 571 putint(pgtokb(s.uvmexp.swpgonly), MEMROW + 5, MEMCOL + 18, 10); 572 putint(pgtokb(s.uvmexp.free), MEMROW + 5, MEMCOL + 28, 10); 573 574 #undef pgtokb 575 576 /* Namei cache */ 577 Z(s, s1, ncs_goodhits); Z(s, s1, ncs_badhits); Z(s, s1, ncs_miss); 578 Z(s, s1, ncs_long); Z(s, s1, ncs_pass2); Z(s, s1, ncs_2passes); 579 s.nchcount = s.nchstats.ncs_goodhits + s.nchstats.ncs_badhits + 580 s.nchstats.ncs_miss + s.nchstats.ncs_long + 581 s.nchstats.ncs_pass2 + s.nchstats.ncs_2passes; 582 if (display_mode == TIME) 583 s1.nchcount = s.nchcount; 584 585 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 586 putint(s.nchstats.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9); 587 #define nz(x) ((x) ? (x) : 1) 588 putfloat(s.nchstats.ncs_goodhits * 100.0 / nz(s.nchcount), 589 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 590 putint(s.nchstats.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 591 putfloat(s.nchstats.ncs_pass2 * 100.0 / nz(s.nchcount), 592 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 593 #undef nz 594 595 /* Disks */ 596 for (l = 0, i = 0, r = DISKROW, c = DISKCOL; 597 i < (int)ndrive; i++) { 598 if (!drv_select[i]) 599 continue; 600 601 if (disk_horiz) 602 c += DISKCOLWIDTH; 603 else 604 r++; 605 if (c + DISKCOLWIDTH > DISKCOLEND) { 606 if (disk_horiz && LINES - 1 - DISKROW > 607 (DISKCOLEND - DISKCOL) / DISKCOLWIDTH) { 608 disk_horiz = 0; 609 relabel = 1; 610 } 611 break; 612 } 613 if (r >= LINES - 1) { 614 if (!disk_horiz && LINES - 1 - DISKROW < 615 (DISKCOLEND - DISKCOL) / DISKCOLWIDTH) { 616 disk_horiz = 1; 617 relabel = 1; 618 } 619 break; 620 } 621 l++; 622 623 dinfo(i, r, c); 624 } 625 /* blank out if we lost any disks */ 626 for (i = l; i < last_disks; i++) { 627 int j; 628 if (disk_horiz) 629 c += DISKCOLWIDTH; 630 else 631 r++; 632 for (j = 0; j < 5; j++) { 633 if (disk_horiz) 634 mvprintw(r+j, c, "%*s", DISKCOLWIDTH, ""); 635 else 636 mvprintw(r, c+j*DISKCOLWIDTH, "%*s", DISKCOLWIDTH, ""); 637 } 638 } 639 last_disks = l; 640 641 /* Interrupts */ 642 failcnt = 0; 643 inttotal = 0; 644 for (i = 0; i < nintr; i++) { 645 if (s.intrcnt[i] == 0) 646 continue; 647 if (intrloc[i] == 0) { 648 if (nextintsrow == LINES) 649 continue; 650 intrloc[i] = nextintsrow++; 651 mvprintw(intrloc[i], INTSCOL + 9, "%-.*s", 652 INTSCOLEND - (INTSCOL + 9), intrname[i]); 653 } 654 X(s, s1, intrcnt); 655 l = (int)((float)s.intrcnt[i]/etime + 0.5); 656 inttotal += l; 657 putint(l, intrloc[i], INTSCOL, 8); 658 } 659 660 for (i = 0; i < nevcnt; i++) { 661 if (s.evcnt[i] == 0) 662 continue; 663 if (ie_head[i].ie_loc == 0) { 664 if (nextintsrow == LINES) 665 continue; 666 ie_head[i].ie_loc = nextintsrow++; 667 print_ie_title(i); 668 } 669 X(s, s1, evcnt); 670 l = (int)((float)s.evcnt[i]/etime + 0.5); 671 inttotal += l; 672 putint(l, ie_head[i].ie_loc, INTSCOL, 8); 673 } 674 putint(inttotal, INTSROW, INTSCOL, 8); 675 676 PUTRATE(s, s1, uvmexp.forks, VMSTATROW + 0, VMSTATCOL + 3, 6); 677 PUTRATE(s, s1, uvmexp.forks_ppwait, VMSTATROW + 1, VMSTATCOL + 3, 6); 678 PUTRATE(s, s1, uvmexp.forks_sharevm, VMSTATROW + 2, VMSTATCOL + 3, 6); 679 PUTRATE(s, s1, uvmexp.fltpgwait, VMSTATROW + 3, VMSTATCOL + 4, 5); 680 PUTRATE(s, s1, uvmexp.fltrelck, VMSTATROW + 4, VMSTATCOL + 3, 6); 681 PUTRATE(s, s1, uvmexp.fltrelckok, VMSTATROW + 5, VMSTATCOL + 3, 6); 682 PUTRATE(s, s1, uvmexp.fltnoram, VMSTATROW + 6, VMSTATCOL + 3, 6); 683 PUTRATE(s, s1, uvmexp.fltamcopy, VMSTATROW + 7, VMSTATCOL + 3, 6); 684 PUTRATE(s, s1, uvmexp.flt_prcopy, VMSTATROW + 8, VMSTATCOL + 3, 6); 685 PUTRATE(s, s1, uvmexp.flt_przero, VMSTATROW + 9, VMSTATCOL + 3, 6); 686 PUTRATE(s, s1, uvmexp.flt_acow, VMSTATROW + 10, VMSTATCOL, 9); 687 putint(s.uvmexp.freemin, VMSTATROW + 11, VMSTATCOL, 9); 688 putint(s.uvmexp.freetarg, VMSTATROW + 12, VMSTATCOL, 9); 689 putint(s.uvmexp.inactarg, VMSTATROW + 13, VMSTATCOL, 9); 690 putint(s.uvmexp.fltnoanon, VMSTATROW + 14, VMSTATCOL, 9); 691 PUTRATE(s, s1, uvmexp.pdfreed, VMSTATROW + 15, VMSTATCOL, 9); 692 if (LINES - 1 > VMSTATROW + 16) 693 PUTRATE(s, s1, uvmexp.pdscans, VMSTATROW + 16, VMSTATCOL, 9); 694 695 } 696 697 void 698 vmstat_boot(char *args) 699 { 700 copyinfo(&z, &s1); 701 display_mode = BOOT; 702 } 703 704 void 705 vmstat_run(char *args) 706 { 707 copyinfo(&s1, &s2); 708 display_mode = RUN; 709 } 710 711 void 712 vmstat_time(char *args) 713 { 714 display_mode = TIME; 715 } 716 717 void 718 vmstat_zero(char *args) 719 { 720 if (display_mode == RUN) 721 getinfo(&s1); 722 } 723 724 /* calculate number of users on the system */ 725 static int 726 ucount(void) 727 { 728 static int onusers = -1; 729 int nusers = 0; 730 struct utmpentry *ehead; 731 732 nusers = getutentries(NULL, &ehead); 733 734 if (nusers != onusers) { 735 if (nusers == 1) 736 mvprintw(STATROW, STATCOL + 8, " "); 737 else 738 mvprintw(STATROW, STATCOL + 8, "s"); 739 } 740 onusers = nusers; 741 return (nusers); 742 } 743 744 static float 745 cputime(int indx) 746 { 747 double t; 748 int i; 749 750 t = 0; 751 for (i = 0; i < CPUSTATES; i++) 752 t += cur.cp_time[i]; 753 if (t == 0.0) 754 t = 1.0; 755 return (cur.cp_time[indx] * 100.0 / t); 756 } 757 758 void 759 puthumanint_scale(u_int64_t n, int l, int c, int w, int scale) 760 { 761 char b[128]; 762 763 if (move(l, c) != OK) 764 return; 765 if (n == 0) { 766 hline(' ', w); 767 return; 768 } 769 if (humanize_number(b, w, n, "", scale, HN_NOSPACE) == -1 ) { 770 hline('*', w); 771 return; 772 } 773 printw("%*s", w, b); 774 } 775 776 void 777 puthumanint_sticky(u_int64_t n, int l, int c, int w, int *scale) 778 { 779 char b[128]; 780 int sc; 781 782 sc = humanize_number(b, w, n, "", HN_GETSCALE, HN_NOSPACE); 783 if (sc > *scale) 784 *scale = sc; 785 else 786 sc = *scale; 787 788 puthumanint_scale(n, l, c, w, sc); 789 } 790 791 void 792 puthumanint(u_int64_t n, int l, int c, int w) 793 { 794 795 puthumanint_scale(n, l, c, w, HN_AUTOSCALE); 796 } 797 798 void 799 putint(int n, int l, int c, int w) 800 { 801 char b[128]; 802 803 if (move(l, c) != OK) 804 return; 805 if (n == 0) { 806 hline(' ', w); 807 return; 808 } 809 (void)snprintf(b, sizeof b, "%*d", w, n); 810 if ((int)strlen(b) > w) { 811 if (display_mode == TIME) 812 hline('*', w); 813 else 814 puthumanint(n, l, c, w); 815 return; 816 } 817 addstr(b); 818 } 819 820 void 821 putfloat(double f, int l, int c, int w, int d, int nz) 822 { 823 char b[128]; 824 825 if (move(l, c) != OK) 826 return; 827 if (nz && f == 0.0) { 828 hline(' ', w); 829 return; 830 } 831 (void)snprintf(b, sizeof b, "%*.*f", w, d, f); 832 if ((int)strlen(b) > w) { 833 hline('*', w); 834 return; 835 } 836 addstr(b); 837 } 838 839 static void 840 getinfo(struct Info *stats) 841 { 842 int mib[2]; 843 size_t size; 844 int i; 845 846 cpureadstats(); 847 drvreadstats(); 848 size = sizeof(stats->nchstats); 849 if (sysctlbyname("vfs.namecache_stats", &stats->nchstats, &size, 850 NULL, 0) < 0) { 851 error("can't get namecache statistics: %s\n", strerror(errno)); 852 memset(&stats->nchstats, 0, sizeof(stats->nchstats)); 853 } 854 if (nintr) 855 NREAD(X_INTRCNT, stats->intrcnt, nintr * sizeof(long)); 856 for (i = 0; i < nevcnt; i++) 857 KREAD(ie_head[i].ie_count, &stats->evcnt[i], 858 sizeof stats->evcnt[i]); 859 size = sizeof(stats->uvmexp); 860 mib[0] = CTL_VM; 861 mib[1] = VM_UVMEXP2; 862 if (sysctl(mib, 2, &stats->uvmexp, &size, NULL, 0) < 0) { 863 error("can't get uvmexp: %s\n", strerror(errno)); 864 memset(&stats->uvmexp, 0, sizeof(stats->uvmexp)); 865 } 866 size = sizeof(stats->Total); 867 mib[0] = CTL_VM; 868 mib[1] = VM_METER; 869 if (sysctl(mib, 2, &stats->Total, &size, NULL, 0) < 0) { 870 error("Can't get kernel info: %s\n", strerror(errno)); 871 memset(&stats->Total, 0, sizeof(stats->Total)); 872 } 873 } 874 875 static void 876 allocinfo(struct Info *stats) 877 { 878 879 if (nintr && 880 (stats->intrcnt = calloc(nintr, sizeof(long))) == NULL) { 881 error("calloc failed"); 882 die(0); 883 } 884 if ((stats->evcnt = calloc(nevcnt, sizeof(u_int64_t))) == NULL) { 885 error("calloc failed"); 886 die(0); 887 } 888 } 889 890 static void 891 copyinfo(struct Info *from, struct Info *to) 892 { 893 long *intrcnt; 894 u_int64_t *evcnt; 895 896 intrcnt = to->intrcnt; 897 evcnt = to->evcnt; 898 *to = *from; 899 memmove(to->intrcnt = intrcnt, from->intrcnt, nintr * sizeof *intrcnt); 900 memmove(to->evcnt = evcnt, from->evcnt, nevcnt * sizeof *evcnt); 901 } 902 903 static void 904 dinfo(int dn, int r, int c) 905 { 906 double atime, dtime; 907 #define ADV if (disk_horiz) r++; else c += DISKCOLWIDTH 908 909 /* elapsed time for disk stats */ 910 dtime = etime; 911 if (cur.timestamp[dn].tv_sec || cur.timestamp[dn].tv_usec) { 912 dtime = (double)cur.timestamp[dn].tv_sec + 913 ((double)cur.timestamp[dn].tv_usec / (double)1000000); 914 } 915 916 mvprintw(r, c, "%*.*s", DISKCOLWIDTH, DISKCOLWIDTH, dr_name[dn]); 917 ADV; 918 919 putint((int)(cur.seek[dn]/dtime+0.5), r, c, DISKCOLWIDTH); 920 ADV; 921 putint((int)((cur.rxfer[dn]+cur.wxfer[dn])/dtime+0.5), 922 r, c, DISKCOLWIDTH); 923 ADV; 924 puthumanint_sticky((cur.rbytes[dn] + cur.wbytes[dn]) / dtime + 0.5, 925 r, c, DISKCOLWIDTH, &cur.scale[dn]); 926 ADV; 927 928 /* time busy in disk activity */ 929 atime = cur.time[dn].tv_sec + cur.time[dn].tv_usec / 1000000.0; 930 atime = atime * 100.0 / dtime; 931 if (atime >= 100) 932 putint(100, r, c, DISKCOLWIDTH); 933 else 934 putfloat(atime, r, c, DISKCOLWIDTH, 1, 1); 935 } 936
Indexes created Sun Oct 19 16:10:00 GMT 2025