1/*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1982, 1986, 1989, 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/param.h> 33#include <sys/systm.h> 34#include <sys/kernel.h> 35#include <sys/lock.h> 36#include <sys/malloc.h> 37#include <sys/mutex.h> 38#include <sys/proc.h> 39#include <sys/resource.h> 40#include <sys/rwlock.h> 41#include <sys/sx.h> 42#include <sys/vmmeter.h> 43#include <sys/smp.h> 44 45#include <vm/vm.h> 46#include <vm/vm_page.h> 47#include <vm/vm_extern.h> 48#include <vm/vm_param.h> 49#include <vm/vm_phys.h> 50#include <vm/vm_pagequeue.h> 51#include <vm/pmap.h> 52#include <vm/vm_map.h> 53#include <vm/vm_object.h> 54#include <sys/sysctl.h> 55 56struct vmmeter __read_mostly vm_cnt = { 57 .v_swtch = EARLY_COUNTER, 58 .v_trap = EARLY_COUNTER, 59 .v_syscall = EARLY_COUNTER, 60 .v_intr = EARLY_COUNTER, 61 .v_soft = EARLY_COUNTER, 62 .v_vm_faults = EARLY_COUNTER, 63 .v_io_faults = EARLY_COUNTER, 64 .v_cow_faults = EARLY_COUNTER, 65 .v_cow_optim = EARLY_COUNTER, 66 .v_zfod = EARLY_COUNTER, 67 .v_ozfod = EARLY_COUNTER, 68 .v_swapin = EARLY_COUNTER, 69 .v_swapout = EARLY_COUNTER, 70 .v_swappgsin = EARLY_COUNTER, 71 .v_swappgsout = EARLY_COUNTER, 72 .v_vnodein = EARLY_COUNTER, 73 .v_vnodeout = EARLY_COUNTER, 74 .v_vnodepgsin = EARLY_COUNTER, 75 .v_vnodepgsout = EARLY_COUNTER, 76 .v_intrans = EARLY_COUNTER, 77 .v_reactivated = EARLY_COUNTER, 78 .v_pdwakeups = EARLY_COUNTER, 79 .v_pdpages = EARLY_COUNTER, 80 .v_pdshortfalls = EARLY_COUNTER, 81 .v_dfree = EARLY_COUNTER, 82 .v_pfree = EARLY_COUNTER, 83 .v_tfree = EARLY_COUNTER, 84 .v_forks = EARLY_COUNTER, 85 .v_vforks = EARLY_COUNTER, 86 .v_rforks = EARLY_COUNTER, 87 .v_kthreads = EARLY_COUNTER, 88 .v_forkpages = EARLY_COUNTER, 89 .v_vforkpages = EARLY_COUNTER, 90 .v_rforkpages = EARLY_COUNTER, 91 .v_kthreadpages = EARLY_COUNTER, 92 .v_wire_count = EARLY_COUNTER, 93}; 94 95u_long __exclusive_cache_line vm_user_wire_count; 96 97static void 98vmcounter_startup(void) 99{ 100 counter_u64_t *cnt = (counter_u64_t *)&vm_cnt; 101 102 COUNTER_ARRAY_ALLOC(cnt, VM_METER_NCOUNTERS, M_WAITOK); 103} 104SYSINIT(counter, SI_SUB_KMEM, SI_ORDER_FIRST, vmcounter_startup, NULL); 105 106SYSCTL_UINT(_vm, VM_V_FREE_MIN, v_free_min, 107 CTLFLAG_RW, &vm_cnt.v_free_min, 0, "Minimum low-free-pages threshold"); 108SYSCTL_UINT(_vm, VM_V_FREE_TARGET, v_free_target, 109 CTLFLAG_RW, &vm_cnt.v_free_target, 0, "Desired free pages"); 110SYSCTL_UINT(_vm, VM_V_FREE_RESERVED, v_free_reserved, 111 CTLFLAG_RW, &vm_cnt.v_free_reserved, 0, "Pages reserved for deadlock"); 112SYSCTL_UINT(_vm, VM_V_INACTIVE_TARGET, v_inactive_target, 113 CTLFLAG_RW, &vm_cnt.v_inactive_target, 0, "Pages desired inactive"); 114SYSCTL_UINT(_vm, VM_V_PAGEOUT_FREE_MIN, v_pageout_free_min, 115 CTLFLAG_RW, &vm_cnt.v_pageout_free_min, 0, "Min pages reserved for kernel"); 116SYSCTL_UINT(_vm, OID_AUTO, v_free_severe, 117 CTLFLAG_RW, &vm_cnt.v_free_severe, 0, "Severe page depletion point"); 118 119static int 120sysctl_vm_loadavg(SYSCTL_HANDLER_ARGS) 121{ 122 123#ifdef SCTL_MASK32 124 uint32_t la[4]; 125 126 if (req->flags & SCTL_MASK32) { 127 la[0] = averunnable.ldavg[0]; 128 la[1] = averunnable.ldavg[1]; 129 la[2] = averunnable.ldavg[2]; 130 la[3] = averunnable.fscale; 131 return SYSCTL_OUT(req, la, sizeof(la)); 132 } else 133#endif 134 return SYSCTL_OUT(req, &averunnable, sizeof(averunnable)); 135} 136SYSCTL_PROC(_vm, VM_LOADAVG, loadavg, CTLTYPE_STRUCT | CTLFLAG_RD | 137 CTLFLAG_MPSAFE, NULL, 0, sysctl_vm_loadavg, "S,loadavg", 138 "Machine loadaverage history"); 139 140#if defined(COMPAT_FREEBSD11) 141struct vmtotal11 { 142 int16_t t_rq; 143 int16_t t_dw; 144 int16_t t_pw; 145 int16_t t_sl; 146 int16_t t_sw; 147 int32_t t_vm; 148 int32_t t_avm; 149 int32_t t_rm; 150 int32_t t_arm; 151 int32_t t_vmshr; 152 int32_t t_avmshr; 153 int32_t t_rmshr; 154 int32_t t_armshr; 155 int32_t t_free; 156}; 157#endif 158 159static int 160vmtotal(SYSCTL_HANDLER_ARGS) 161{ 162 struct vmtotal total; 163#if defined(COMPAT_FREEBSD11) 164 struct vmtotal11 total11; 165#endif 166 vm_object_t object; 167 struct proc *p; 168 struct thread *td; 169 170 if (req->oldptr == NULL) { 171#if defined(COMPAT_FREEBSD11) 172 if (curproc->p_osrel < P_OSREL_VMTOTAL64) 173 return (SYSCTL_OUT(req, NULL, sizeof(total11))); 174#endif 175 return (SYSCTL_OUT(req, NULL, sizeof(total))); 176 } 177 bzero(&total, sizeof(total)); 178 179 /* 180 * Calculate process statistics. 181 */ 182 sx_slock(&allproc_lock); 183 FOREACH_PROC_IN_SYSTEM(p) { 184 if ((p->p_flag & P_SYSTEM) != 0) 185 continue; 186 PROC_LOCK(p); 187 if (p->p_state != PRS_NEW) { 188 FOREACH_THREAD_IN_PROC(p, td) { 189 thread_lock(td); 190 switch (TD_GET_STATE(td)) { 191 case TDS_INHIBITED: 192 if (TD_IS_SWAPPED(td)) 193 total.t_sw++; 194 else if (TD_IS_SLEEPING(td)) { 195 if (td->td_priority <= PZERO) 196 total.t_dw++; 197 else 198 total.t_sl++; 199 } 200 break; 201 case TDS_CAN_RUN: 202 total.t_sw++; 203 break; 204 case TDS_RUNQ: 205 case TDS_RUNNING: 206 total.t_rq++; 207 break; 208 default: 209 break; 210 } 211 thread_unlock(td); 212 } 213 } 214 PROC_UNLOCK(p); 215 } 216 sx_sunlock(&allproc_lock); 217 /* 218 * Calculate object memory usage statistics. 219 */ 220 mtx_lock(&vm_object_list_mtx); 221 TAILQ_FOREACH(object, &vm_object_list, object_list) { 222 /* 223 * Perform unsynchronized reads on the object. In 224 * this case, the lack of synchronization should not 225 * impair the accuracy of the reported statistics. 226 */ 227 if ((object->flags & OBJ_FICTITIOUS) != 0) { 228 /* 229 * Devices, like /dev/mem, will badly skew our totals. 230 */ 231 continue; 232 } 233 if (object->ref_count == 0) { 234 /* 235 * Also skip unreferenced objects, including 236 * vnodes representing mounted file systems. 237 */ 238 continue; 239 } 240 if (object->ref_count == 1 && 241 (object->flags & (OBJ_ANON | OBJ_SWAP)) == OBJ_SWAP) { 242 /* 243 * Also skip otherwise unreferenced swap 244 * objects backing tmpfs vnodes, and POSIX or 245 * SysV shared memory. 246 */ 247 continue; 248 } 249 total.t_vm += object->size; 250 total.t_rm += object->resident_page_count; 251 if (vm_object_is_active(object)) { 252 total.t_avm += object->size; 253 total.t_arm += object->resident_page_count; 254 } 255 if (object->shadow_count > 1) { 256 /* shared object */ 257 total.t_vmshr += object->size; 258 total.t_rmshr += object->resident_page_count; 259 if (vm_object_is_active(object)) { 260 total.t_avmshr += object->size; 261 total.t_armshr += object->resident_page_count; 262 } 263 } 264 } 265 mtx_unlock(&vm_object_list_mtx); 266 total.t_pw = vm_wait_count(); 267 total.t_free = vm_free_count(); 268#if defined(COMPAT_FREEBSD11) 269 /* sysctl(8) allocates twice as much memory as reported by sysctl(3) */ 270 if (curproc->p_osrel < P_OSREL_VMTOTAL64 && (req->oldlen == 271 sizeof(total11) || req->oldlen == 2 * sizeof(total11))) { 272 bzero(&total11, sizeof(total11)); 273 total11.t_rq = total.t_rq; 274 total11.t_dw = total.t_dw; 275 total11.t_pw = total.t_pw; 276 total11.t_sl = total.t_sl; 277 total11.t_sw = total.t_sw; 278 total11.t_vm = total.t_vm; /* truncate */ 279 total11.t_avm = total.t_avm; /* truncate */ 280 total11.t_rm = total.t_rm; /* truncate */ 281 total11.t_arm = total.t_arm; /* truncate */ 282 total11.t_vmshr = total.t_vmshr; /* truncate */ 283 total11.t_avmshr = total.t_avmshr; /* truncate */ 284 total11.t_rmshr = total.t_rmshr; /* truncate */ 285 total11.t_armshr = total.t_armshr; /* truncate */ 286 total11.t_free = total.t_free; /* truncate */ 287 return (SYSCTL_OUT(req, &total11, sizeof(total11))); 288 } 289#endif 290 return (SYSCTL_OUT(req, &total, sizeof(total))); 291} 292 293SYSCTL_PROC(_vm, VM_TOTAL, vmtotal, CTLTYPE_OPAQUE | CTLFLAG_RD | 294 CTLFLAG_MPSAFE, NULL, 0, vmtotal, "S,vmtotal", 295 "System virtual memory statistics"); 296SYSCTL_NODE(_vm, OID_AUTO, stats, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 297 "VM meter stats"); 298static SYSCTL_NODE(_vm_stats, OID_AUTO, sys, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 299 "VM meter sys stats"); 300static SYSCTL_NODE(_vm_stats, OID_AUTO, vm, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 301 "VM meter vm stats"); 302SYSCTL_NODE(_vm_stats, OID_AUTO, misc, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 303 "VM meter misc stats"); 304 305static int 306sysctl_handle_vmstat(SYSCTL_HANDLER_ARGS) 307{ 308 uint64_t val; 309#ifdef COMPAT_FREEBSD11 310 uint32_t val32; 311#endif 312 313 val = counter_u64_fetch(*(counter_u64_t *)arg1); 314#ifdef COMPAT_FREEBSD11 315 if (req->oldlen == sizeof(val32)) { 316 val32 = val; /* truncate */ 317 return (SYSCTL_OUT(req, &val32, sizeof(val32))); 318 } 319#endif 320 return (SYSCTL_OUT(req, &val, sizeof(val))); 321} 322 323#define VM_STATS(parent, var, descr) \ 324 SYSCTL_OID(parent, OID_AUTO, var, CTLTYPE_U64 | CTLFLAG_MPSAFE | \ 325 CTLFLAG_RD, &vm_cnt.var, 0, sysctl_handle_vmstat, "QU", descr) 326#define VM_STATS_VM(var, descr) VM_STATS(_vm_stats_vm, var, descr) 327#define VM_STATS_SYS(var, descr) VM_STATS(_vm_stats_sys, var, descr) 328 329VM_STATS_SYS(v_swtch, "Context switches"); 330VM_STATS_SYS(v_trap, "Traps"); 331VM_STATS_SYS(v_syscall, "System calls"); 332VM_STATS_SYS(v_intr, "Device interrupts"); 333VM_STATS_SYS(v_soft, "Software interrupts"); 334VM_STATS_VM(v_vm_faults, "Address memory faults"); 335VM_STATS_VM(v_io_faults, "Page faults requiring I/O"); 336VM_STATS_VM(v_cow_faults, "Copy-on-write faults"); 337VM_STATS_VM(v_cow_optim, "Optimized COW faults"); 338VM_STATS_VM(v_zfod, "Pages zero-filled on demand"); 339VM_STATS_VM(v_ozfod, "Optimized zero fill pages"); 340VM_STATS_VM(v_swapin, "Swap pager pageins"); 341VM_STATS_VM(v_swapout, "Swap pager pageouts"); 342VM_STATS_VM(v_swappgsin, "Swap pages swapped in"); 343VM_STATS_VM(v_swappgsout, "Swap pages swapped out"); 344VM_STATS_VM(v_vnodein, "Vnode pager pageins"); 345VM_STATS_VM(v_vnodeout, "Vnode pager pageouts"); 346VM_STATS_VM(v_vnodepgsin, "Vnode pages paged in"); 347VM_STATS_VM(v_vnodepgsout, "Vnode pages paged out"); 348VM_STATS_VM(v_intrans, "In transit page faults"); 349VM_STATS_VM(v_reactivated, "Pages reactivated by pagedaemon"); 350VM_STATS_VM(v_pdwakeups, "Pagedaemon wakeups"); 351VM_STATS_VM(v_pdshortfalls, "Page reclamation shortfalls"); 352VM_STATS_VM(v_dfree, "Pages freed by pagedaemon"); 353VM_STATS_VM(v_pfree, "Pages freed by exiting processes"); 354VM_STATS_VM(v_tfree, "Total pages freed"); 355VM_STATS_VM(v_forks, "Number of fork() calls"); 356VM_STATS_VM(v_vforks, "Number of vfork() calls"); 357VM_STATS_VM(v_rforks, "Number of rfork() calls"); 358VM_STATS_VM(v_kthreads, "Number of fork() calls by kernel"); 359VM_STATS_VM(v_forkpages, "VM pages affected by fork()"); 360VM_STATS_VM(v_vforkpages, "VM pages affected by vfork()"); 361VM_STATS_VM(v_rforkpages, "VM pages affected by rfork()"); 362VM_STATS_VM(v_kthreadpages, "VM pages affected by fork() by kernel"); 363 364static int 365sysctl_handle_vmstat_proc(SYSCTL_HANDLER_ARGS) 366{ 367 u_int (*fn)(void); 368 uint32_t val; 369 370 fn = arg1; 371 val = fn(); 372 return (SYSCTL_OUT(req, &val, sizeof(val))); 373} 374 375#define VM_STATS_PROC(var, descr, fn) \ 376 SYSCTL_OID(_vm_stats_vm, OID_AUTO, var, CTLTYPE_U32 | CTLFLAG_MPSAFE | \ 377 CTLFLAG_RD, fn, 0, sysctl_handle_vmstat_proc, "IU", descr) 378 379#define VM_STATS_UINT(var, descr) \ 380 SYSCTL_UINT(_vm_stats_vm, OID_AUTO, var, CTLFLAG_RD, &vm_cnt.var, 0, descr) 381#define VM_STATS_ULONG(var, descr) \ 382 SYSCTL_ULONG(_vm_stats_vm, OID_AUTO, var, CTLFLAG_RD, &vm_cnt.var, 0, descr) 383 384VM_STATS_UINT(v_page_size, "Page size in bytes"); 385VM_STATS_UINT(v_page_count, "Total number of pages in system"); 386VM_STATS_UINT(v_free_reserved, "Pages reserved for deadlock"); 387VM_STATS_UINT(v_free_target, "Pages desired free"); 388VM_STATS_UINT(v_free_min, "Minimum low-free-pages threshold"); 389VM_STATS_PROC(v_free_count, "Free pages", vm_free_count); 390VM_STATS_PROC(v_wire_count, "Wired pages", vm_wire_count); 391VM_STATS_PROC(v_active_count, "Active pages", vm_active_count); 392VM_STATS_UINT(v_inactive_target, "Desired inactive pages"); 393VM_STATS_PROC(v_inactive_count, "Inactive pages", vm_inactive_count); 394VM_STATS_PROC(v_laundry_count, "Pages eligible for laundering", 395 vm_laundry_count); 396VM_STATS_UINT(v_pageout_free_min, "Min pages reserved for kernel"); 397VM_STATS_UINT(v_interrupt_free_min, "Reserved pages for interrupt code"); 398VM_STATS_UINT(v_free_severe, "Severe page depletion point"); 399 400SYSCTL_ULONG(_vm_stats_vm, OID_AUTO, v_user_wire_count, CTLFLAG_RD, 401 &vm_user_wire_count, 0, "User-wired virtual memory"); 402 403#ifdef COMPAT_FREEBSD11 404/* 405 * Provide compatibility sysctls for the benefit of old utilities which exit 406 * with an error if they cannot be found. 407 */ 408SYSCTL_UINT(_vm_stats_vm, OID_AUTO, v_cache_count, CTLFLAG_RD, 409 SYSCTL_NULL_UINT_PTR, 0, "Dummy for compatibility"); 410SYSCTL_UINT(_vm_stats_vm, OID_AUTO, v_tcached, CTLFLAG_RD, 411 SYSCTL_NULL_UINT_PTR, 0, "Dummy for compatibility"); 412#endif 413 414u_int 415vm_free_count(void) 416{ 417 u_int v; 418 int i; 419 420 v = 0; 421 for (i = 0; i < vm_ndomains; i++) 422 v += vm_dom[i].vmd_free_count; 423 424 return (v); 425} 426 427static u_int 428vm_pagequeue_count(int pq) 429{ 430 u_int v; 431 int i; 432 433 v = 0; 434 for (i = 0; i < vm_ndomains; i++) 435 v += vm_dom[i].vmd_pagequeues[pq].pq_cnt; 436 437 return (v); 438} 439 440u_int 441vm_active_count(void) 442{ 443 444 return (vm_pagequeue_count(PQ_ACTIVE)); 445} 446 447u_int 448vm_inactive_count(void) 449{ 450 451 return (vm_pagequeue_count(PQ_INACTIVE)); 452} 453 454u_int 455vm_laundry_count(void) 456{ 457 458 return (vm_pagequeue_count(PQ_LAUNDRY)); 459} 460 461static int 462sysctl_vm_pdpages(SYSCTL_HANDLER_ARGS) 463{ 464 struct vm_pagequeue *pq; 465 uint64_t ret; 466 int dom, i; 467 468 ret = counter_u64_fetch(vm_cnt.v_pdpages); 469 for (dom = 0; dom < vm_ndomains; dom++) 470 for (i = 0; i < PQ_COUNT; i++) { 471 pq = &VM_DOMAIN(dom)->vmd_pagequeues[i]; 472 ret += pq->pq_pdpages; 473 } 474 return (SYSCTL_OUT(req, &ret, sizeof(ret))); 475} 476SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_pdpages, 477 CTLTYPE_U64 | CTLFLAG_MPSAFE | CTLFLAG_RD, NULL, 0, sysctl_vm_pdpages, "QU", 478 "Pages analyzed by pagedaemon"); 479 480static void 481vm_domain_stats_init(struct vm_domain *vmd, struct sysctl_oid *parent) 482{ 483 struct sysctl_oid *oid; 484 485 vmd->vmd_oid = SYSCTL_ADD_NODE(NULL, SYSCTL_CHILDREN(parent), OID_AUTO, 486 vmd->vmd_name, CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, ""); 487 oid = SYSCTL_ADD_NODE(NULL, SYSCTL_CHILDREN(vmd->vmd_oid), OID_AUTO, 488 "stats", CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, ""); 489 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 490 "free_count", CTLFLAG_RD, &vmd->vmd_free_count, 0, 491 "Free pages"); 492 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 493 "active", CTLFLAG_RD, &vmd->vmd_pagequeues[PQ_ACTIVE].pq_cnt, 0, 494 "Active pages"); 495 SYSCTL_ADD_U64(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 496 "actpdpgs", CTLFLAG_RD, 497 &vmd->vmd_pagequeues[PQ_ACTIVE].pq_pdpages, 0, 498 "Active pages scanned by the page daemon"); 499 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 500 "inactive", CTLFLAG_RD, &vmd->vmd_pagequeues[PQ_INACTIVE].pq_cnt, 0, 501 "Inactive pages"); 502 SYSCTL_ADD_U64(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 503 "inactpdpgs", CTLFLAG_RD, 504 &vmd->vmd_pagequeues[PQ_INACTIVE].pq_pdpages, 0, 505 "Inactive pages scanned by the page daemon"); 506 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 507 "laundry", CTLFLAG_RD, &vmd->vmd_pagequeues[PQ_LAUNDRY].pq_cnt, 0, 508 "laundry pages"); 509 SYSCTL_ADD_U64(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 510 "laundpdpgs", CTLFLAG_RD, 511 &vmd->vmd_pagequeues[PQ_LAUNDRY].pq_pdpages, 0, 512 "Laundry pages scanned by the page daemon"); 513 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, "unswappable", 514 CTLFLAG_RD, &vmd->vmd_pagequeues[PQ_UNSWAPPABLE].pq_cnt, 0, 515 "Unswappable pages"); 516 SYSCTL_ADD_U64(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 517 "unswppdpgs", CTLFLAG_RD, 518 &vmd->vmd_pagequeues[PQ_UNSWAPPABLE].pq_pdpages, 0, 519 "Unswappable pages scanned by the page daemon"); 520 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 521 "inactive_target", CTLFLAG_RD, &vmd->vmd_inactive_target, 0, 522 "Target inactive pages"); 523 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 524 "free_target", CTLFLAG_RD, &vmd->vmd_free_target, 0, 525 "Target free pages"); 526 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 527 "free_reserved", CTLFLAG_RD, &vmd->vmd_free_reserved, 0, 528 "Reserved free pages"); 529 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 530 "free_min", CTLFLAG_RD, &vmd->vmd_free_min, 0, 531 "Minimum free pages"); 532 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 533 "free_severe", CTLFLAG_RD, &vmd->vmd_free_severe, 0, 534 "Severe free pages"); 535 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 536 "inactive_pps", CTLFLAG_RD, &vmd->vmd_inactive_pps, 0, 537 "inactive pages freed/second"); 538 539} 540 541static void 542vm_stats_init(void *arg __unused) 543{ 544 struct sysctl_oid *oid; 545 int i; 546 547 oid = SYSCTL_ADD_NODE(NULL, SYSCTL_STATIC_CHILDREN(_vm), OID_AUTO, 548 "domain", CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, ""); 549 for (i = 0; i < vm_ndomains; i++) 550 vm_domain_stats_init(VM_DOMAIN(i), oid); 551} 552 553SYSINIT(vmstats_init, SI_SUB_VM_CONF, SI_ORDER_FIRST, vm_stats_init, NULL); 554