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 .v_nofree_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_SLEEPING(td)) { 194 if (td->td_priority <= PZERO) 195 total.t_dw++; 196 else 197 total.t_sl++; 198 } 199 break; 200 case TDS_CAN_RUN: 201 total.t_sw++; 202 break; 203 case TDS_RUNQ: 204 case TDS_RUNNING: 205 total.t_rq++; 206 break; 207 default: 208 break; 209 } 210 thread_unlock(td); 211 } 212 } 213 PROC_UNLOCK(p); 214 } 215 sx_sunlock(&allproc_lock); 216 /* 217 * Calculate object memory usage statistics. 218 */ 219 mtx_lock(&vm_object_list_mtx); 220 TAILQ_FOREACH(object, &vm_object_list, object_list) { 221 /* 222 * Perform unsynchronized reads on the object. In 223 * this case, the lack of synchronization should not 224 * impair the accuracy of the reported statistics. 225 */ 226 if ((object->flags & OBJ_FICTITIOUS) != 0) { 227 /* 228 * Devices, like /dev/mem, will badly skew our totals. 229 */ 230 continue; 231 } 232 if (object->ref_count == 0) { 233 /* 234 * Also skip unreferenced objects, including 235 * vnodes representing mounted file systems. 236 */ 237 continue; 238 } 239 if (object->ref_count == 1 && 240 (object->flags & (OBJ_ANON | OBJ_SWAP)) == OBJ_SWAP) { 241 /* 242 * Also skip otherwise unreferenced swap 243 * objects backing tmpfs vnodes, and POSIX or 244 * SysV shared memory. 245 */ 246 continue; 247 } 248 total.t_vm += object->size; 249 total.t_rm += object->resident_page_count; 250 if (vm_object_is_active(object)) { 251 total.t_avm += object->size; 252 total.t_arm += object->resident_page_count; 253 } 254 if (object->shadow_count > 1) { 255 /* shared object */ 256 total.t_vmshr += object->size; 257 total.t_rmshr += object->resident_page_count; 258 if (vm_object_is_active(object)) { 259 total.t_avmshr += object->size; 260 total.t_armshr += object->resident_page_count; 261 } 262 } 263 } 264 mtx_unlock(&vm_object_list_mtx); 265 total.t_pw = vm_wait_count(); 266 total.t_free = vm_free_count(); 267 #if defined(COMPAT_FREEBSD11) 268 /* sysctl(8) allocates twice as much memory as reported by sysctl(3) */ 269 if (curproc->p_osrel < P_OSREL_VMTOTAL64 && (req->oldlen == 270 sizeof(total11) || req->oldlen == 2 * sizeof(total11))) { 271 bzero(&total11, sizeof(total11)); 272 total11.t_rq = total.t_rq; 273 total11.t_dw = total.t_dw; 274 total11.t_pw = total.t_pw; 275 total11.t_sl = total.t_sl; 276 total11.t_sw = total.t_sw; 277 total11.t_vm = total.t_vm; /* truncate */ 278 total11.t_avm = total.t_avm; /* truncate */ 279 total11.t_rm = total.t_rm; /* truncate */ 280 total11.t_arm = total.t_arm; /* truncate */ 281 total11.t_vmshr = total.t_vmshr; /* truncate */ 282 total11.t_avmshr = total.t_avmshr; /* truncate */ 283 total11.t_rmshr = total.t_rmshr; /* truncate */ 284 total11.t_armshr = total.t_armshr; /* truncate */ 285 total11.t_free = total.t_free; /* truncate */ 286 return (SYSCTL_OUT(req, &total11, sizeof(total11))); 287 } 288 #endif 289 return (SYSCTL_OUT(req, &total, sizeof(total))); 290 } 291 292 SYSCTL_PROC(_vm, VM_TOTAL, vmtotal, CTLTYPE_OPAQUE | CTLFLAG_RD | 293 CTLFLAG_MPSAFE, NULL, 0, vmtotal, "S,vmtotal", 294 "System virtual memory statistics"); 295 SYSCTL_NODE(_vm, OID_AUTO, stats, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 296 "VM meter stats"); 297 static SYSCTL_NODE(_vm_stats, OID_AUTO, sys, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 298 "VM meter sys stats"); 299 static SYSCTL_NODE(_vm_stats, OID_AUTO, vm, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 300 "VM meter vm stats"); 301 SYSCTL_NODE(_vm_stats, OID_AUTO, misc, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 302 "VM meter misc stats"); 303 304 static int 305 sysctl_handle_vmstat(SYSCTL_HANDLER_ARGS) 306 { 307 uint64_t val; 308 #ifdef COMPAT_FREEBSD11 309 uint32_t val32; 310 #endif 311 312 val = counter_u64_fetch(*(counter_u64_t *)arg1); 313 #ifdef COMPAT_FREEBSD11 314 if (req->oldlen == sizeof(val32)) { 315 val32 = val; /* truncate */ 316 return (SYSCTL_OUT(req, &val32, sizeof(val32))); 317 } 318 #endif 319 return (SYSCTL_OUT(req, &val, sizeof(val))); 320 } 321 322 #define VM_STATS(parent, var, descr) \ 323 SYSCTL_OID(parent, OID_AUTO, var, CTLTYPE_U64 | CTLFLAG_MPSAFE | \ 324 CTLFLAG_RD, &vm_cnt.var, 0, sysctl_handle_vmstat, "QU", descr) 325 #define VM_STATS_VM(var, descr) VM_STATS(_vm_stats_vm, var, descr) 326 #define VM_STATS_SYS(var, descr) VM_STATS(_vm_stats_sys, var, descr) 327 328 VM_STATS_SYS(v_swtch, "Context switches"); 329 VM_STATS_SYS(v_trap, "Traps"); 330 VM_STATS_SYS(v_syscall, "System calls"); 331 VM_STATS_SYS(v_intr, "Device interrupts"); 332 VM_STATS_SYS(v_soft, "Software interrupts"); 333 VM_STATS_VM(v_vm_faults, "Address memory faults"); 334 VM_STATS_VM(v_io_faults, "Page faults requiring I/O"); 335 VM_STATS_VM(v_cow_faults, "Copy-on-write faults"); 336 VM_STATS_VM(v_cow_optim, "Optimized COW faults"); 337 VM_STATS_VM(v_zfod, "Pages zero-filled on demand"); 338 VM_STATS_VM(v_ozfod, "Optimized zero fill pages"); 339 VM_STATS_VM(v_swapin, "Swap pager pageins"); 340 VM_STATS_VM(v_swapout, "Swap pager pageouts"); 341 VM_STATS_VM(v_swappgsin, "Swap pages swapped in"); 342 VM_STATS_VM(v_swappgsout, "Swap pages swapped out"); 343 VM_STATS_VM(v_vnodein, "Vnode pager pageins"); 344 VM_STATS_VM(v_vnodeout, "Vnode pager pageouts"); 345 VM_STATS_VM(v_vnodepgsin, "Vnode pages paged in"); 346 VM_STATS_VM(v_vnodepgsout, "Vnode pages paged out"); 347 VM_STATS_VM(v_intrans, "In transit page faults"); 348 VM_STATS_VM(v_reactivated, "Pages reactivated by pagedaemon"); 349 VM_STATS_VM(v_pdwakeups, "Pagedaemon wakeups"); 350 VM_STATS_VM(v_pdshortfalls, "Page reclamation shortfalls"); 351 VM_STATS_VM(v_dfree, "Pages freed by pagedaemon"); 352 VM_STATS_VM(v_pfree, "Pages freed by exiting processes"); 353 VM_STATS_VM(v_tfree, "Total pages freed"); 354 VM_STATS_VM(v_forks, "Number of fork() calls"); 355 VM_STATS_VM(v_vforks, "Number of vfork() calls"); 356 VM_STATS_VM(v_rforks, "Number of rfork() calls"); 357 VM_STATS_VM(v_kthreads, "Number of fork() calls by kernel"); 358 VM_STATS_VM(v_forkpages, "VM pages affected by fork()"); 359 VM_STATS_VM(v_vforkpages, "VM pages affected by vfork()"); 360 VM_STATS_VM(v_rforkpages, "VM pages affected by rfork()"); 361 VM_STATS_VM(v_kthreadpages, "VM pages affected by fork() by kernel"); 362 363 static int 364 sysctl_handle_vmstat_proc(SYSCTL_HANDLER_ARGS) 365 { 366 u_int (*fn)(void); 367 uint32_t val; 368 369 fn = arg1; 370 val = fn(); 371 return (SYSCTL_OUT(req, &val, sizeof(val))); 372 } 373 374 #define VM_STATS_PROC(var, descr, fn) \ 375 SYSCTL_OID(_vm_stats_vm, OID_AUTO, var, CTLTYPE_U32 | CTLFLAG_MPSAFE | \ 376 CTLFLAG_RD, fn, 0, sysctl_handle_vmstat_proc, "IU", descr) 377 378 #define VM_STATS_UINT(var, descr) \ 379 SYSCTL_UINT(_vm_stats_vm, OID_AUTO, var, CTLFLAG_RD, &vm_cnt.var, 0, descr) 380 #define VM_STATS_ULONG(var, descr) \ 381 SYSCTL_ULONG(_vm_stats_vm, OID_AUTO, var, CTLFLAG_RD, &vm_cnt.var, 0, descr) 382 383 VM_STATS_UINT(v_page_size, "Page size in bytes"); 384 VM_STATS_UINT(v_page_count, "Total number of pages in system"); 385 VM_STATS_UINT(v_free_reserved, "Pages reserved for deadlock"); 386 VM_STATS_UINT(v_free_target, "Pages desired free"); 387 VM_STATS_UINT(v_free_min, "Minimum low-free-pages threshold"); 388 VM_STATS_PROC(v_free_count, "Free pages", vm_free_count); 389 VM_STATS_PROC(v_wire_count, "Wired pages", vm_wire_count); 390 VM_STATS_PROC(v_nofree_count, "Permanently allocated pages", vm_nofree_count); 391 VM_STATS_PROC(v_active_count, "Active pages", vm_active_count); 392 VM_STATS_UINT(v_inactive_target, "Desired inactive pages"); 393 VM_STATS_PROC(v_inactive_count, "Inactive pages", vm_inactive_count); 394 VM_STATS_PROC(v_laundry_count, "Pages eligible for laundering", 395 vm_laundry_count); 396 VM_STATS_UINT(v_pageout_free_min, "Min pages reserved for kernel"); 397 VM_STATS_UINT(v_interrupt_free_min, "Reserved pages for interrupt code"); 398 VM_STATS_UINT(v_free_severe, "Severe page depletion point"); 399 400 SYSCTL_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 */ 408 SYSCTL_UINT(_vm_stats_vm, OID_AUTO, v_cache_count, CTLFLAG_RD, 409 SYSCTL_NULL_UINT_PTR, 0, "Dummy for compatibility"); 410 SYSCTL_UINT(_vm_stats_vm, OID_AUTO, v_tcached, CTLFLAG_RD, 411 SYSCTL_NULL_UINT_PTR, 0, "Dummy for compatibility"); 412 #endif 413 414 u_int 415 vm_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 } 426 427 static u_int 428 vm_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 } 439 440 u_int 441 vm_active_count(void) 442 { 443 444 return (vm_pagequeue_count(PQ_ACTIVE)); 445 } 446 447 u_int 448 vm_inactive_count(void) 449 { 450 451 return (vm_pagequeue_count(PQ_INACTIVE)); 452 } 453 454 u_int 455 vm_laundry_count(void) 456 { 457 458 return (vm_pagequeue_count(PQ_LAUNDRY)); 459 } 460 461 static int 462 sysctl_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 } 476 SYSCTL_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"); 479 480 static void 481 vm_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 } 540 541 static void 542 vm_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 } 552 553 SYSINIT(vmstats_init, SI_SUB_VM_CONF, SI_ORDER_FIRST, vm_stats_init, NULL); 554