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 56 struct 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 95 u_long __exclusive_cache_line vm_user_wire_count; 96 97 static void 98 vmcounter_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 } 104 SYSINIT(counter, SI_SUB_KMEM, SI_ORDER_FIRST, vmcounter_startup, NULL); 105 106 SYSCTL_UINT(_vm, VM_V_FREE_MIN, v_free_min, 107 CTLFLAG_RW, &vm_cnt.v_free_min, 0, "Minimum low-free-pages threshold"); 108 SYSCTL_UINT(_vm, VM_V_FREE_TARGET, v_free_target, 109 CTLFLAG_RW, &vm_cnt.v_free_target, 0, "Desired free pages"); 110 SYSCTL_UINT(_vm, VM_V_FREE_RESERVED, v_free_reserved, 111 CTLFLAG_RW, &vm_cnt.v_free_reserved, 0, "Pages reserved for deadlock"); 112 SYSCTL_UINT(_vm, VM_V_INACTIVE_TARGET, v_inactive_target, 113 CTLFLAG_RW, &vm_cnt.v_inactive_target, 0, "Pages desired inactive"); 114 SYSCTL_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"); 116 SYSCTL_UINT(_vm, OID_AUTO, v_free_severe, 117 CTLFLAG_RW, &vm_cnt.v_free_severe, 0, "Severe page depletion point"); 118 119 static int 120 sysctl_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 } 136 SYSCTL_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) 141 struct 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 158 159 static int 160 vmtotal(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_SLEEPING(td)) { 193 if (td->td_priority <= PZERO) 194 total.t_dw++; 195 else 196 total.t_sl++; 197 } 198 break; 199 case TDS_CAN_RUN: 200 total.t_sw++; 201 break; 202 case TDS_RUNQ: 203 case TDS_RUNNING: 204 total.t_rq++; 205 break; 206 default: 207 break; 208 } 209 thread_unlock(td); 210 } 211 } 212 PROC_UNLOCK(p); 213 } 214 sx_sunlock(&allproc_lock); 215 /* 216 * Calculate object memory usage statistics. 217 */ 218 mtx_lock(&vm_object_list_mtx); 219 TAILQ_FOREACH(object, &vm_object_list, object_list) { 220 /* 221 * Perform unsynchronized reads on the object. In 222 * this case, the lack of synchronization should not 223 * impair the accuracy of the reported statistics. 224 */ 225 if ((object->flags & OBJ_FICTITIOUS) != 0) { 226 /* 227 * Devices, like /dev/mem, will badly skew our totals. 228 */ 229 continue; 230 } 231 if (object->ref_count == 0) { 232 /* 233 * Also skip unreferenced objects, including 234 * vnodes representing mounted file systems. 235 */ 236 continue; 237 } 238 if (object->ref_count == 1 && 239 (object->flags & (OBJ_ANON | OBJ_SWAP)) == OBJ_SWAP) { 240 /* 241 * Also skip otherwise unreferenced swap 242 * objects backing tmpfs vnodes, and POSIX or 243 * SysV shared memory. 244 */ 245 continue; 246 } 247 total.t_vm += object->size; 248 total.t_rm += object->resident_page_count; 249 if (vm_object_is_active(object)) { 250 total.t_avm += object->size; 251 total.t_arm += object->resident_page_count; 252 } 253 if (object->shadow_count > 1) { 254 /* shared object */ 255 total.t_vmshr += object->size; 256 total.t_rmshr += object->resident_page_count; 257 if (vm_object_is_active(object)) { 258 total.t_avmshr += object->size; 259 total.t_armshr += object->resident_page_count; 260 } 261 } 262 } 263 mtx_unlock(&vm_object_list_mtx); 264 total.t_pw = vm_wait_count(); 265 total.t_free = vm_free_count(); 266 #if defined(COMPAT_FREEBSD11) 267 /* sysctl(8) allocates twice as much memory as reported by sysctl(3) */ 268 if (curproc->p_osrel < P_OSREL_VMTOTAL64 && (req->oldlen == 269 sizeof(total11) || req->oldlen == 2 * sizeof(total11))) { 270 bzero(&total11, sizeof(total11)); 271 total11.t_rq = total.t_rq; 272 total11.t_dw = total.t_dw; 273 total11.t_pw = total.t_pw; 274 total11.t_sl = total.t_sl; 275 total11.t_sw = total.t_sw; 276 total11.t_vm = total.t_vm; /* truncate */ 277 total11.t_avm = total.t_avm; /* truncate */ 278 total11.t_rm = total.t_rm; /* truncate */ 279 total11.t_arm = total.t_arm; /* truncate */ 280 total11.t_vmshr = total.t_vmshr; /* truncate */ 281 total11.t_avmshr = total.t_avmshr; /* truncate */ 282 total11.t_rmshr = total.t_rmshr; /* truncate */ 283 total11.t_armshr = total.t_armshr; /* truncate */ 284 total11.t_free = total.t_free; /* truncate */ 285 return (SYSCTL_OUT(req, &total11, sizeof(total11))); 286 } 287 #endif 288 return (SYSCTL_OUT(req, &total, sizeof(total))); 289 } 290 291 SYSCTL_PROC(_vm, VM_TOTAL, vmtotal, CTLTYPE_OPAQUE | CTLFLAG_RD | 292 CTLFLAG_MPSAFE, NULL, 0, vmtotal, "S,vmtotal", 293 "System virtual memory statistics"); 294 SYSCTL_NODE(_vm, OID_AUTO, stats, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 295 "VM meter stats"); 296 static SYSCTL_NODE(_vm_stats, OID_AUTO, sys, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 297 "VM meter sys stats"); 298 static SYSCTL_NODE(_vm_stats, OID_AUTO, vm, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 299 "VM meter vm stats"); 300 SYSCTL_NODE(_vm_stats, OID_AUTO, misc, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 301 "VM meter misc stats"); 302 303 static int 304 sysctl_handle_vmstat(SYSCTL_HANDLER_ARGS) 305 { 306 uint64_t val; 307 #ifdef COMPAT_FREEBSD11 308 uint32_t val32; 309 #endif 310 311 val = counter_u64_fetch(*(counter_u64_t *)arg1); 312 #ifdef COMPAT_FREEBSD11 313 if (req->oldlen == sizeof(val32)) { 314 val32 = val; /* truncate */ 315 return (SYSCTL_OUT(req, &val32, sizeof(val32))); 316 } 317 #endif 318 return (SYSCTL_OUT(req, &val, sizeof(val))); 319 } 320 321 #define VM_STATS(parent, var, descr) \ 322 SYSCTL_OID(parent, OID_AUTO, var, CTLTYPE_U64 | CTLFLAG_MPSAFE | \ 323 CTLFLAG_RD, &vm_cnt.var, 0, sysctl_handle_vmstat, "QU", descr) 324 #define VM_STATS_VM(var, descr) VM_STATS(_vm_stats_vm, var, descr) 325 #define VM_STATS_SYS(var, descr) VM_STATS(_vm_stats_sys, var, descr) 326 327 VM_STATS_SYS(v_swtch, "Context switches"); 328 VM_STATS_SYS(v_trap, "Traps"); 329 VM_STATS_SYS(v_syscall, "System calls"); 330 VM_STATS_SYS(v_intr, "Device interrupts"); 331 VM_STATS_SYS(v_soft, "Software interrupts"); 332 VM_STATS_VM(v_vm_faults, "Address memory faults"); 333 VM_STATS_VM(v_io_faults, "Page faults requiring I/O"); 334 VM_STATS_VM(v_cow_faults, "Copy-on-write faults"); 335 VM_STATS_VM(v_cow_optim, "Optimized COW faults"); 336 VM_STATS_VM(v_zfod, "Pages zero-filled on demand"); 337 VM_STATS_VM(v_ozfod, "Optimized zero fill pages"); 338 VM_STATS_VM(v_swapin, "Swap pager pageins"); 339 VM_STATS_VM(v_swapout, "Swap pager pageouts"); 340 VM_STATS_VM(v_swappgsin, "Swap pages swapped in"); 341 VM_STATS_VM(v_swappgsout, "Swap pages swapped out"); 342 VM_STATS_VM(v_vnodein, "Vnode pager pageins"); 343 VM_STATS_VM(v_vnodeout, "Vnode pager pageouts"); 344 VM_STATS_VM(v_vnodepgsin, "Vnode pages paged in"); 345 VM_STATS_VM(v_vnodepgsout, "Vnode pages paged out"); 346 VM_STATS_VM(v_intrans, "In transit page faults"); 347 VM_STATS_VM(v_reactivated, "Pages reactivated by pagedaemon"); 348 VM_STATS_VM(v_pdwakeups, "Pagedaemon wakeups"); 349 VM_STATS_VM(v_pdshortfalls, "Page reclamation shortfalls"); 350 VM_STATS_VM(v_dfree, "Pages freed by pagedaemon"); 351 VM_STATS_VM(v_pfree, "Pages freed by exiting processes"); 352 VM_STATS_VM(v_tfree, "Total pages freed"); 353 VM_STATS_VM(v_forks, "Number of fork() calls"); 354 VM_STATS_VM(v_vforks, "Number of vfork() calls"); 355 VM_STATS_VM(v_rforks, "Number of rfork() calls"); 356 VM_STATS_VM(v_kthreads, "Number of fork() calls by kernel"); 357 VM_STATS_VM(v_forkpages, "VM pages affected by fork()"); 358 VM_STATS_VM(v_vforkpages, "VM pages affected by vfork()"); 359 VM_STATS_VM(v_rforkpages, "VM pages affected by rfork()"); 360 VM_STATS_VM(v_kthreadpages, "VM pages affected by fork() by kernel"); 361 362 static int 363 sysctl_handle_vmstat_proc(SYSCTL_HANDLER_ARGS) 364 { 365 u_int (*fn)(void); 366 uint32_t val; 367 368 fn = arg1; 369 val = fn(); 370 return (SYSCTL_OUT(req, &val, sizeof(val))); 371 } 372 373 #define VM_STATS_PROC(var, descr, fn) \ 374 SYSCTL_OID(_vm_stats_vm, OID_AUTO, var, CTLTYPE_U32 | CTLFLAG_MPSAFE | \ 375 CTLFLAG_RD, fn, 0, sysctl_handle_vmstat_proc, "IU", descr) 376 377 #define VM_STATS_UINT(var, descr) \ 378 SYSCTL_UINT(_vm_stats_vm, OID_AUTO, var, CTLFLAG_RD, &vm_cnt.var, 0, descr) 379 #define VM_STATS_ULONG(var, descr) \ 380 SYSCTL_ULONG(_vm_stats_vm, OID_AUTO, var, CTLFLAG_RD, &vm_cnt.var, 0, descr) 381 382 VM_STATS_UINT(v_page_size, "Page size in bytes"); 383 VM_STATS_UINT(v_page_count, "Total number of pages in system"); 384 VM_STATS_UINT(v_free_reserved, "Pages reserved for deadlock"); 385 VM_STATS_UINT(v_free_target, "Pages desired free"); 386 VM_STATS_UINT(v_free_min, "Minimum low-free-pages threshold"); 387 VM_STATS_PROC(v_free_count, "Free pages", vm_free_count); 388 VM_STATS_PROC(v_wire_count, "Wired pages", vm_wire_count); 389 VM_STATS_PROC(v_active_count, "Active pages", vm_active_count); 390 VM_STATS_UINT(v_inactive_target, "Desired inactive pages"); 391 VM_STATS_PROC(v_inactive_count, "Inactive pages", vm_inactive_count); 392 VM_STATS_PROC(v_laundry_count, "Pages eligible for laundering", 393 vm_laundry_count); 394 VM_STATS_UINT(v_pageout_free_min, "Min pages reserved for kernel"); 395 VM_STATS_UINT(v_interrupt_free_min, "Reserved pages for interrupt code"); 396 VM_STATS_UINT(v_free_severe, "Severe page depletion point"); 397 398 SYSCTL_ULONG(_vm_stats_vm, OID_AUTO, v_user_wire_count, CTLFLAG_RD, 399 &vm_user_wire_count, 0, "User-wired virtual memory"); 400 401 #ifdef COMPAT_FREEBSD11 402 /* 403 * Provide compatibility sysctls for the benefit of old utilities which exit 404 * with an error if they cannot be found. 405 */ 406 SYSCTL_UINT(_vm_stats_vm, OID_AUTO, v_cache_count, CTLFLAG_RD, 407 SYSCTL_NULL_UINT_PTR, 0, "Dummy for compatibility"); 408 SYSCTL_UINT(_vm_stats_vm, OID_AUTO, v_tcached, CTLFLAG_RD, 409 SYSCTL_NULL_UINT_PTR, 0, "Dummy for compatibility"); 410 #endif 411 412 u_int 413 vm_free_count(void) 414 { 415 u_int v; 416 int i; 417 418 v = 0; 419 for (i = 0; i < vm_ndomains; i++) 420 v += vm_dom[i].vmd_free_count; 421 422 return (v); 423 } 424 425 static u_int 426 vm_pagequeue_count(int pq) 427 { 428 u_int v; 429 int i; 430 431 v = 0; 432 for (i = 0; i < vm_ndomains; i++) 433 v += vm_dom[i].vmd_pagequeues[pq].pq_cnt; 434 435 return (v); 436 } 437 438 u_int 439 vm_active_count(void) 440 { 441 442 return (vm_pagequeue_count(PQ_ACTIVE)); 443 } 444 445 u_int 446 vm_inactive_count(void) 447 { 448 449 return (vm_pagequeue_count(PQ_INACTIVE)); 450 } 451 452 u_int 453 vm_laundry_count(void) 454 { 455 456 return (vm_pagequeue_count(PQ_LAUNDRY)); 457 } 458 459 static int 460 sysctl_vm_pdpages(SYSCTL_HANDLER_ARGS) 461 { 462 struct vm_pagequeue *pq; 463 uint64_t ret; 464 int dom, i; 465 466 ret = counter_u64_fetch(vm_cnt.v_pdpages); 467 for (dom = 0; dom < vm_ndomains; dom++) 468 for (i = 0; i < PQ_COUNT; i++) { 469 pq = &VM_DOMAIN(dom)->vmd_pagequeues[i]; 470 ret += pq->pq_pdpages; 471 } 472 return (SYSCTL_OUT(req, &ret, sizeof(ret))); 473 } 474 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_pdpages, 475 CTLTYPE_U64 | CTLFLAG_MPSAFE | CTLFLAG_RD, NULL, 0, sysctl_vm_pdpages, "QU", 476 "Pages analyzed by pagedaemon"); 477 478 static void 479 vm_domain_stats_init(struct vm_domain *vmd, struct sysctl_oid *parent) 480 { 481 struct sysctl_oid *oid; 482 483 vmd->vmd_oid = SYSCTL_ADD_NODE(NULL, SYSCTL_CHILDREN(parent), OID_AUTO, 484 vmd->vmd_name, CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, ""); 485 oid = SYSCTL_ADD_NODE(NULL, SYSCTL_CHILDREN(vmd->vmd_oid), OID_AUTO, 486 "stats", CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, ""); 487 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 488 "free_count", CTLFLAG_RD, &vmd->vmd_free_count, 0, 489 "Free pages"); 490 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 491 "active", CTLFLAG_RD, &vmd->vmd_pagequeues[PQ_ACTIVE].pq_cnt, 0, 492 "Active pages"); 493 SYSCTL_ADD_U64(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 494 "actpdpgs", CTLFLAG_RD, 495 &vmd->vmd_pagequeues[PQ_ACTIVE].pq_pdpages, 0, 496 "Active pages scanned by the page daemon"); 497 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 498 "inactive", CTLFLAG_RD, &vmd->vmd_pagequeues[PQ_INACTIVE].pq_cnt, 0, 499 "Inactive pages"); 500 SYSCTL_ADD_U64(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 501 "inactpdpgs", CTLFLAG_RD, 502 &vmd->vmd_pagequeues[PQ_INACTIVE].pq_pdpages, 0, 503 "Inactive pages scanned by the page daemon"); 504 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 505 "laundry", CTLFLAG_RD, &vmd->vmd_pagequeues[PQ_LAUNDRY].pq_cnt, 0, 506 "laundry pages"); 507 SYSCTL_ADD_U64(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 508 "laundpdpgs", CTLFLAG_RD, 509 &vmd->vmd_pagequeues[PQ_LAUNDRY].pq_pdpages, 0, 510 "Laundry pages scanned by the page daemon"); 511 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, "unswappable", 512 CTLFLAG_RD, &vmd->vmd_pagequeues[PQ_UNSWAPPABLE].pq_cnt, 0, 513 "Unswappable pages"); 514 SYSCTL_ADD_U64(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 515 "unswppdpgs", CTLFLAG_RD, 516 &vmd->vmd_pagequeues[PQ_UNSWAPPABLE].pq_pdpages, 0, 517 "Unswappable pages scanned by the page daemon"); 518 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 519 "inactive_target", CTLFLAG_RD, &vmd->vmd_inactive_target, 0, 520 "Target inactive pages"); 521 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 522 "free_target", CTLFLAG_RD, &vmd->vmd_free_target, 0, 523 "Target free pages"); 524 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 525 "free_reserved", CTLFLAG_RD, &vmd->vmd_free_reserved, 0, 526 "Reserved free pages"); 527 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 528 "free_min", CTLFLAG_RD, &vmd->vmd_free_min, 0, 529 "Minimum free pages"); 530 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 531 "free_severe", CTLFLAG_RD, &vmd->vmd_free_severe, 0, 532 "Severe free pages"); 533 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 534 "inactive_pps", CTLFLAG_RD, &vmd->vmd_inactive_pps, 0, 535 "inactive pages freed/second"); 536 537 } 538 539 static void 540 vm_stats_init(void *arg __unused) 541 { 542 struct sysctl_oid *oid; 543 int i; 544 545 oid = SYSCTL_ADD_NODE(NULL, SYSCTL_STATIC_CHILDREN(_vm), OID_AUTO, 546 "domain", CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, ""); 547 for (i = 0; i < vm_ndomains; i++) 548 vm_domain_stats_init(VM_DOMAIN(i), oid); 549 } 550 551 SYSINIT(vmstats_init, SI_SUB_VM_CONF, SI_ORDER_FIRST, vm_stats_init, NULL); 552