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/cdefs.h> 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/kernel.h> 36 #include <sys/lock.h> 37 #include <sys/malloc.h> 38 #include <sys/mutex.h> 39 #include <sys/proc.h> 40 #include <sys/resource.h> 41 #include <sys/rwlock.h> 42 #include <sys/sx.h> 43 #include <sys/vmmeter.h> 44 #include <sys/smp.h> 45 46 #include <vm/vm.h> 47 #include <vm/vm_page.h> 48 #include <vm/vm_extern.h> 49 #include <vm/vm_param.h> 50 #include <vm/vm_phys.h> 51 #include <vm/vm_pagequeue.h> 52 #include <vm/pmap.h> 53 #include <vm/vm_map.h> 54 #include <vm/vm_object.h> 55 #include <sys/sysctl.h> 56 57 struct vmmeter __read_mostly vm_cnt = { 58 .v_swtch = EARLY_COUNTER, 59 .v_trap = EARLY_COUNTER, 60 .v_syscall = EARLY_COUNTER, 61 .v_intr = EARLY_COUNTER, 62 .v_soft = EARLY_COUNTER, 63 .v_vm_faults = EARLY_COUNTER, 64 .v_io_faults = EARLY_COUNTER, 65 .v_cow_faults = EARLY_COUNTER, 66 .v_cow_optim = EARLY_COUNTER, 67 .v_zfod = EARLY_COUNTER, 68 .v_ozfod = EARLY_COUNTER, 69 .v_swapin = EARLY_COUNTER, 70 .v_swapout = EARLY_COUNTER, 71 .v_swappgsin = EARLY_COUNTER, 72 .v_swappgsout = EARLY_COUNTER, 73 .v_vnodein = EARLY_COUNTER, 74 .v_vnodeout = EARLY_COUNTER, 75 .v_vnodepgsin = EARLY_COUNTER, 76 .v_vnodepgsout = EARLY_COUNTER, 77 .v_intrans = EARLY_COUNTER, 78 .v_reactivated = EARLY_COUNTER, 79 .v_pdwakeups = EARLY_COUNTER, 80 .v_pdpages = EARLY_COUNTER, 81 .v_pdshortfalls = EARLY_COUNTER, 82 .v_dfree = EARLY_COUNTER, 83 .v_pfree = EARLY_COUNTER, 84 .v_tfree = EARLY_COUNTER, 85 .v_forks = EARLY_COUNTER, 86 .v_vforks = EARLY_COUNTER, 87 .v_rforks = EARLY_COUNTER, 88 .v_kthreads = EARLY_COUNTER, 89 .v_forkpages = EARLY_COUNTER, 90 .v_vforkpages = EARLY_COUNTER, 91 .v_rforkpages = EARLY_COUNTER, 92 .v_kthreadpages = EARLY_COUNTER, 93 .v_wire_count = EARLY_COUNTER, 94 }; 95 96 u_long __exclusive_cache_line vm_user_wire_count; 97 98 static void 99 vmcounter_startup(void) 100 { 101 counter_u64_t *cnt = (counter_u64_t *)&vm_cnt; 102 103 COUNTER_ARRAY_ALLOC(cnt, VM_METER_NCOUNTERS, M_WAITOK); 104 } 105 SYSINIT(counter, SI_SUB_KMEM, SI_ORDER_FIRST, vmcounter_startup, NULL); 106 107 SYSCTL_UINT(_vm, VM_V_FREE_MIN, v_free_min, 108 CTLFLAG_RW, &vm_cnt.v_free_min, 0, "Minimum low-free-pages threshold"); 109 SYSCTL_UINT(_vm, VM_V_FREE_TARGET, v_free_target, 110 CTLFLAG_RW, &vm_cnt.v_free_target, 0, "Desired free pages"); 111 SYSCTL_UINT(_vm, VM_V_FREE_RESERVED, v_free_reserved, 112 CTLFLAG_RW, &vm_cnt.v_free_reserved, 0, "Pages reserved for deadlock"); 113 SYSCTL_UINT(_vm, VM_V_INACTIVE_TARGET, v_inactive_target, 114 CTLFLAG_RW, &vm_cnt.v_inactive_target, 0, "Pages desired inactive"); 115 SYSCTL_UINT(_vm, VM_V_PAGEOUT_FREE_MIN, v_pageout_free_min, 116 CTLFLAG_RW, &vm_cnt.v_pageout_free_min, 0, "Min pages reserved for kernel"); 117 SYSCTL_UINT(_vm, OID_AUTO, v_free_severe, 118 CTLFLAG_RW, &vm_cnt.v_free_severe, 0, "Severe page depletion point"); 119 120 static int 121 sysctl_vm_loadavg(SYSCTL_HANDLER_ARGS) 122 { 123 124 #ifdef SCTL_MASK32 125 uint32_t la[4]; 126 127 if (req->flags & SCTL_MASK32) { 128 la[0] = averunnable.ldavg[0]; 129 la[1] = averunnable.ldavg[1]; 130 la[2] = averunnable.ldavg[2]; 131 la[3] = averunnable.fscale; 132 return SYSCTL_OUT(req, la, sizeof(la)); 133 } else 134 #endif 135 return SYSCTL_OUT(req, &averunnable, sizeof(averunnable)); 136 } 137 SYSCTL_PROC(_vm, VM_LOADAVG, loadavg, CTLTYPE_STRUCT | CTLFLAG_RD | 138 CTLFLAG_MPSAFE, NULL, 0, sysctl_vm_loadavg, "S,loadavg", 139 "Machine loadaverage history"); 140 141 #if defined(COMPAT_FREEBSD11) 142 struct vmtotal11 { 143 int16_t t_rq; 144 int16_t t_dw; 145 int16_t t_pw; 146 int16_t t_sl; 147 int16_t t_sw; 148 int32_t t_vm; 149 int32_t t_avm; 150 int32_t t_rm; 151 int32_t t_arm; 152 int32_t t_vmshr; 153 int32_t t_avmshr; 154 int32_t t_rmshr; 155 int32_t t_armshr; 156 int32_t t_free; 157 }; 158 #endif 159 160 static int 161 vmtotal(SYSCTL_HANDLER_ARGS) 162 { 163 struct vmtotal total; 164 #if defined(COMPAT_FREEBSD11) 165 struct vmtotal11 total11; 166 #endif 167 vm_object_t object; 168 struct proc *p; 169 struct thread *td; 170 171 if (req->oldptr == NULL) { 172 #if defined(COMPAT_FREEBSD11) 173 if (curproc->p_osrel < P_OSREL_VMTOTAL64) 174 return (SYSCTL_OUT(req, NULL, sizeof(total11))); 175 #endif 176 return (SYSCTL_OUT(req, NULL, sizeof(total))); 177 } 178 bzero(&total, sizeof(total)); 179 180 /* 181 * Calculate process statistics. 182 */ 183 sx_slock(&allproc_lock); 184 FOREACH_PROC_IN_SYSTEM(p) { 185 if ((p->p_flag & P_SYSTEM) != 0) 186 continue; 187 PROC_LOCK(p); 188 if (p->p_state != PRS_NEW) { 189 FOREACH_THREAD_IN_PROC(p, td) { 190 thread_lock(td); 191 switch (TD_GET_STATE(td)) { 192 case TDS_INHIBITED: 193 if (TD_IS_SWAPPED(td)) 194 total.t_sw++; 195 else if (TD_IS_SLEEPING(td)) { 196 if (td->td_priority <= PZERO) 197 total.t_dw++; 198 else 199 total.t_sl++; 200 } 201 break; 202 case TDS_CAN_RUN: 203 total.t_sw++; 204 break; 205 case TDS_RUNQ: 206 case TDS_RUNNING: 207 total.t_rq++; 208 break; 209 default: 210 break; 211 } 212 thread_unlock(td); 213 } 214 } 215 PROC_UNLOCK(p); 216 } 217 sx_sunlock(&allproc_lock); 218 /* 219 * Calculate object memory usage statistics. 220 */ 221 mtx_lock(&vm_object_list_mtx); 222 TAILQ_FOREACH(object, &vm_object_list, object_list) { 223 /* 224 * Perform unsynchronized reads on the object. In 225 * this case, the lack of synchronization should not 226 * impair the accuracy of the reported statistics. 227 */ 228 if ((object->flags & OBJ_FICTITIOUS) != 0) { 229 /* 230 * Devices, like /dev/mem, will badly skew our totals. 231 */ 232 continue; 233 } 234 if (object->ref_count == 0) { 235 /* 236 * Also skip unreferenced objects, including 237 * vnodes representing mounted file systems. 238 */ 239 continue; 240 } 241 if (object->ref_count == 1 && 242 (object->flags & (OBJ_ANON | OBJ_SWAP)) == OBJ_SWAP) { 243 /* 244 * Also skip otherwise unreferenced swap 245 * objects backing tmpfs vnodes, and POSIX or 246 * SysV shared memory. 247 */ 248 continue; 249 } 250 total.t_vm += object->size; 251 total.t_rm += object->resident_page_count; 252 if (vm_object_is_active(object)) { 253 total.t_avm += object->size; 254 total.t_arm += object->resident_page_count; 255 } 256 if (object->shadow_count > 1) { 257 /* shared object */ 258 total.t_vmshr += object->size; 259 total.t_rmshr += object->resident_page_count; 260 if (vm_object_is_active(object)) { 261 total.t_avmshr += object->size; 262 total.t_armshr += object->resident_page_count; 263 } 264 } 265 } 266 mtx_unlock(&vm_object_list_mtx); 267 total.t_pw = vm_wait_count(); 268 total.t_free = vm_free_count(); 269 #if defined(COMPAT_FREEBSD11) 270 /* sysctl(8) allocates twice as much memory as reported by sysctl(3) */ 271 if (curproc->p_osrel < P_OSREL_VMTOTAL64 && (req->oldlen == 272 sizeof(total11) || req->oldlen == 2 * sizeof(total11))) { 273 bzero(&total11, sizeof(total11)); 274 total11.t_rq = total.t_rq; 275 total11.t_dw = total.t_dw; 276 total11.t_pw = total.t_pw; 277 total11.t_sl = total.t_sl; 278 total11.t_sw = total.t_sw; 279 total11.t_vm = total.t_vm; /* truncate */ 280 total11.t_avm = total.t_avm; /* truncate */ 281 total11.t_rm = total.t_rm; /* truncate */ 282 total11.t_arm = total.t_arm; /* truncate */ 283 total11.t_vmshr = total.t_vmshr; /* truncate */ 284 total11.t_avmshr = total.t_avmshr; /* truncate */ 285 total11.t_rmshr = total.t_rmshr; /* truncate */ 286 total11.t_armshr = total.t_armshr; /* truncate */ 287 total11.t_free = total.t_free; /* truncate */ 288 return (SYSCTL_OUT(req, &total11, sizeof(total11))); 289 } 290 #endif 291 return (SYSCTL_OUT(req, &total, sizeof(total))); 292 } 293 294 SYSCTL_PROC(_vm, VM_TOTAL, vmtotal, CTLTYPE_OPAQUE | CTLFLAG_RD | 295 CTLFLAG_MPSAFE, NULL, 0, vmtotal, "S,vmtotal", 296 "System virtual memory statistics"); 297 SYSCTL_NODE(_vm, OID_AUTO, stats, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 298 "VM meter stats"); 299 static SYSCTL_NODE(_vm_stats, OID_AUTO, sys, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 300 "VM meter sys stats"); 301 static SYSCTL_NODE(_vm_stats, OID_AUTO, vm, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 302 "VM meter vm stats"); 303 SYSCTL_NODE(_vm_stats, OID_AUTO, misc, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 304 "VM meter misc stats"); 305 306 static int 307 sysctl_handle_vmstat(SYSCTL_HANDLER_ARGS) 308 { 309 uint64_t val; 310 #ifdef COMPAT_FREEBSD11 311 uint32_t val32; 312 #endif 313 314 val = counter_u64_fetch(*(counter_u64_t *)arg1); 315 #ifdef COMPAT_FREEBSD11 316 if (req->oldlen == sizeof(val32)) { 317 val32 = val; /* truncate */ 318 return (SYSCTL_OUT(req, &val32, sizeof(val32))); 319 } 320 #endif 321 return (SYSCTL_OUT(req, &val, sizeof(val))); 322 } 323 324 #define VM_STATS(parent, var, descr) \ 325 SYSCTL_OID(parent, OID_AUTO, var, CTLTYPE_U64 | CTLFLAG_MPSAFE | \ 326 CTLFLAG_RD, &vm_cnt.var, 0, sysctl_handle_vmstat, "QU", descr) 327 #define VM_STATS_VM(var, descr) VM_STATS(_vm_stats_vm, var, descr) 328 #define VM_STATS_SYS(var, descr) VM_STATS(_vm_stats_sys, var, descr) 329 330 VM_STATS_SYS(v_swtch, "Context switches"); 331 VM_STATS_SYS(v_trap, "Traps"); 332 VM_STATS_SYS(v_syscall, "System calls"); 333 VM_STATS_SYS(v_intr, "Device interrupts"); 334 VM_STATS_SYS(v_soft, "Software interrupts"); 335 VM_STATS_VM(v_vm_faults, "Address memory faults"); 336 VM_STATS_VM(v_io_faults, "Page faults requiring I/O"); 337 VM_STATS_VM(v_cow_faults, "Copy-on-write faults"); 338 VM_STATS_VM(v_cow_optim, "Optimized COW faults"); 339 VM_STATS_VM(v_zfod, "Pages zero-filled on demand"); 340 VM_STATS_VM(v_ozfod, "Optimized zero fill pages"); 341 VM_STATS_VM(v_swapin, "Swap pager pageins"); 342 VM_STATS_VM(v_swapout, "Swap pager pageouts"); 343 VM_STATS_VM(v_swappgsin, "Swap pages swapped in"); 344 VM_STATS_VM(v_swappgsout, "Swap pages swapped out"); 345 VM_STATS_VM(v_vnodein, "Vnode pager pageins"); 346 VM_STATS_VM(v_vnodeout, "Vnode pager pageouts"); 347 VM_STATS_VM(v_vnodepgsin, "Vnode pages paged in"); 348 VM_STATS_VM(v_vnodepgsout, "Vnode pages paged out"); 349 VM_STATS_VM(v_intrans, "In transit page faults"); 350 VM_STATS_VM(v_reactivated, "Pages reactivated by pagedaemon"); 351 VM_STATS_VM(v_pdwakeups, "Pagedaemon wakeups"); 352 VM_STATS_VM(v_pdshortfalls, "Page reclamation shortfalls"); 353 VM_STATS_VM(v_dfree, "Pages freed by pagedaemon"); 354 VM_STATS_VM(v_pfree, "Pages freed by exiting processes"); 355 VM_STATS_VM(v_tfree, "Total pages freed"); 356 VM_STATS_VM(v_forks, "Number of fork() calls"); 357 VM_STATS_VM(v_vforks, "Number of vfork() calls"); 358 VM_STATS_VM(v_rforks, "Number of rfork() calls"); 359 VM_STATS_VM(v_kthreads, "Number of fork() calls by kernel"); 360 VM_STATS_VM(v_forkpages, "VM pages affected by fork()"); 361 VM_STATS_VM(v_vforkpages, "VM pages affected by vfork()"); 362 VM_STATS_VM(v_rforkpages, "VM pages affected by rfork()"); 363 VM_STATS_VM(v_kthreadpages, "VM pages affected by fork() by kernel"); 364 365 static int 366 sysctl_handle_vmstat_proc(SYSCTL_HANDLER_ARGS) 367 { 368 u_int (*fn)(void); 369 uint32_t val; 370 371 fn = arg1; 372 val = fn(); 373 return (SYSCTL_OUT(req, &val, sizeof(val))); 374 } 375 376 #define VM_STATS_PROC(var, descr, fn) \ 377 SYSCTL_OID(_vm_stats_vm, OID_AUTO, var, CTLTYPE_U32 | CTLFLAG_MPSAFE | \ 378 CTLFLAG_RD, fn, 0, sysctl_handle_vmstat_proc, "IU", descr) 379 380 #define VM_STATS_UINT(var, descr) \ 381 SYSCTL_UINT(_vm_stats_vm, OID_AUTO, var, CTLFLAG_RD, &vm_cnt.var, 0, descr) 382 #define VM_STATS_ULONG(var, descr) \ 383 SYSCTL_ULONG(_vm_stats_vm, OID_AUTO, var, CTLFLAG_RD, &vm_cnt.var, 0, descr) 384 385 VM_STATS_UINT(v_page_size, "Page size in bytes"); 386 VM_STATS_UINT(v_page_count, "Total number of pages in system"); 387 VM_STATS_UINT(v_free_reserved, "Pages reserved for deadlock"); 388 VM_STATS_UINT(v_free_target, "Pages desired free"); 389 VM_STATS_UINT(v_free_min, "Minimum low-free-pages threshold"); 390 VM_STATS_PROC(v_free_count, "Free pages", vm_free_count); 391 VM_STATS_PROC(v_wire_count, "Wired pages", vm_wire_count); 392 VM_STATS_PROC(v_active_count, "Active pages", vm_active_count); 393 VM_STATS_UINT(v_inactive_target, "Desired inactive pages"); 394 VM_STATS_PROC(v_inactive_count, "Inactive pages", vm_inactive_count); 395 VM_STATS_PROC(v_laundry_count, "Pages eligible for laundering", 396 vm_laundry_count); 397 VM_STATS_UINT(v_pageout_free_min, "Min pages reserved for kernel"); 398 VM_STATS_UINT(v_interrupt_free_min, "Reserved pages for interrupt code"); 399 VM_STATS_UINT(v_free_severe, "Severe page depletion point"); 400 401 SYSCTL_ULONG(_vm_stats_vm, OID_AUTO, v_user_wire_count, CTLFLAG_RD, 402 &vm_user_wire_count, 0, "User-wired virtual memory"); 403 404 #ifdef COMPAT_FREEBSD11 405 /* 406 * Provide compatibility sysctls for the benefit of old utilities which exit 407 * with an error if they cannot be found. 408 */ 409 SYSCTL_UINT(_vm_stats_vm, OID_AUTO, v_cache_count, CTLFLAG_RD, 410 SYSCTL_NULL_UINT_PTR, 0, "Dummy for compatibility"); 411 SYSCTL_UINT(_vm_stats_vm, OID_AUTO, v_tcached, CTLFLAG_RD, 412 SYSCTL_NULL_UINT_PTR, 0, "Dummy for compatibility"); 413 #endif 414 415 u_int 416 vm_free_count(void) 417 { 418 u_int v; 419 int i; 420 421 v = 0; 422 for (i = 0; i < vm_ndomains; i++) 423 v += vm_dom[i].vmd_free_count; 424 425 return (v); 426 } 427 428 static u_int 429 vm_pagequeue_count(int pq) 430 { 431 u_int v; 432 int i; 433 434 v = 0; 435 for (i = 0; i < vm_ndomains; i++) 436 v += vm_dom[i].vmd_pagequeues[pq].pq_cnt; 437 438 return (v); 439 } 440 441 u_int 442 vm_active_count(void) 443 { 444 445 return (vm_pagequeue_count(PQ_ACTIVE)); 446 } 447 448 u_int 449 vm_inactive_count(void) 450 { 451 452 return (vm_pagequeue_count(PQ_INACTIVE)); 453 } 454 455 u_int 456 vm_laundry_count(void) 457 { 458 459 return (vm_pagequeue_count(PQ_LAUNDRY)); 460 } 461 462 static int 463 sysctl_vm_pdpages(SYSCTL_HANDLER_ARGS) 464 { 465 struct vm_pagequeue *pq; 466 uint64_t ret; 467 int dom, i; 468 469 ret = counter_u64_fetch(vm_cnt.v_pdpages); 470 for (dom = 0; dom < vm_ndomains; dom++) 471 for (i = 0; i < PQ_COUNT; i++) { 472 pq = &VM_DOMAIN(dom)->vmd_pagequeues[i]; 473 ret += pq->pq_pdpages; 474 } 475 return (SYSCTL_OUT(req, &ret, sizeof(ret))); 476 } 477 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_pdpages, 478 CTLTYPE_U64 | CTLFLAG_MPSAFE | CTLFLAG_RD, NULL, 0, sysctl_vm_pdpages, "QU", 479 "Pages analyzed by pagedaemon"); 480 481 static void 482 vm_domain_stats_init(struct vm_domain *vmd, struct sysctl_oid *parent) 483 { 484 struct sysctl_oid *oid; 485 486 vmd->vmd_oid = SYSCTL_ADD_NODE(NULL, SYSCTL_CHILDREN(parent), OID_AUTO, 487 vmd->vmd_name, CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, ""); 488 oid = SYSCTL_ADD_NODE(NULL, SYSCTL_CHILDREN(vmd->vmd_oid), OID_AUTO, 489 "stats", CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, ""); 490 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 491 "free_count", CTLFLAG_RD, &vmd->vmd_free_count, 0, 492 "Free pages"); 493 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 494 "active", CTLFLAG_RD, &vmd->vmd_pagequeues[PQ_ACTIVE].pq_cnt, 0, 495 "Active pages"); 496 SYSCTL_ADD_U64(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 497 "actpdpgs", CTLFLAG_RD, 498 &vmd->vmd_pagequeues[PQ_ACTIVE].pq_pdpages, 0, 499 "Active pages scanned by the page daemon"); 500 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 501 "inactive", CTLFLAG_RD, &vmd->vmd_pagequeues[PQ_INACTIVE].pq_cnt, 0, 502 "Inactive pages"); 503 SYSCTL_ADD_U64(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 504 "inactpdpgs", CTLFLAG_RD, 505 &vmd->vmd_pagequeues[PQ_INACTIVE].pq_pdpages, 0, 506 "Inactive pages scanned by the page daemon"); 507 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 508 "laundry", CTLFLAG_RD, &vmd->vmd_pagequeues[PQ_LAUNDRY].pq_cnt, 0, 509 "laundry pages"); 510 SYSCTL_ADD_U64(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 511 "laundpdpgs", CTLFLAG_RD, 512 &vmd->vmd_pagequeues[PQ_LAUNDRY].pq_pdpages, 0, 513 "Laundry pages scanned by the page daemon"); 514 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, "unswappable", 515 CTLFLAG_RD, &vmd->vmd_pagequeues[PQ_UNSWAPPABLE].pq_cnt, 0, 516 "Unswappable pages"); 517 SYSCTL_ADD_U64(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 518 "unswppdpgs", CTLFLAG_RD, 519 &vmd->vmd_pagequeues[PQ_UNSWAPPABLE].pq_pdpages, 0, 520 "Unswappable pages scanned by the page daemon"); 521 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 522 "inactive_target", CTLFLAG_RD, &vmd->vmd_inactive_target, 0, 523 "Target inactive pages"); 524 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 525 "free_target", CTLFLAG_RD, &vmd->vmd_free_target, 0, 526 "Target free pages"); 527 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 528 "free_reserved", CTLFLAG_RD, &vmd->vmd_free_reserved, 0, 529 "Reserved free pages"); 530 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 531 "free_min", CTLFLAG_RD, &vmd->vmd_free_min, 0, 532 "Minimum free pages"); 533 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 534 "free_severe", CTLFLAG_RD, &vmd->vmd_free_severe, 0, 535 "Severe free pages"); 536 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, 537 "inactive_pps", CTLFLAG_RD, &vmd->vmd_inactive_pps, 0, 538 "inactive pages freed/second"); 539 540 } 541 542 static void 543 vm_stats_init(void *arg __unused) 544 { 545 struct sysctl_oid *oid; 546 int i; 547 548 oid = SYSCTL_ADD_NODE(NULL, SYSCTL_STATIC_CHILDREN(_vm), OID_AUTO, 549 "domain", CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, ""); 550 for (i = 0; i < vm_ndomains; i++) 551 vm_domain_stats_init(VM_DOMAIN(i), oid); 552 } 553 554 SYSINIT(vmstats_init, SI_SUB_VM_CONF, SI_ORDER_FIRST, vm_stats_init, NULL); 555