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 * @(#)vm_meter.c 8.4 (Berkeley) 1/4/94
32 */
33
34 #include <sys/cdefs.h>
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/kernel.h>
38 #include <sys/lock.h>
39 #include <sys/malloc.h>
40 #include <sys/mutex.h>
41 #include <sys/proc.h>
42 #include <sys/resource.h>
43 #include <sys/rwlock.h>
44 #include <sys/sx.h>
45 #include <sys/vmmeter.h>
46 #include <sys/smp.h>
47
48 #include <vm/vm.h>
49 #include <vm/vm_page.h>
50 #include <vm/vm_extern.h>
51 #include <vm/vm_param.h>
52 #include <vm/vm_phys.h>
53 #include <vm/vm_pagequeue.h>
54 #include <vm/pmap.h>
55 #include <vm/vm_map.h>
56 #include <vm/vm_object.h>
57 #include <sys/sysctl.h>
58
59 struct vmmeter __read_mostly vm_cnt = {
60 .v_swtch = EARLY_COUNTER,
61 .v_trap = EARLY_COUNTER,
62 .v_syscall = EARLY_COUNTER,
63 .v_intr = EARLY_COUNTER,
64 .v_soft = EARLY_COUNTER,
65 .v_vm_faults = EARLY_COUNTER,
66 .v_io_faults = EARLY_COUNTER,
67 .v_cow_faults = EARLY_COUNTER,
68 .v_cow_optim = EARLY_COUNTER,
69 .v_zfod = EARLY_COUNTER,
70 .v_ozfod = EARLY_COUNTER,
71 .v_swapin = EARLY_COUNTER,
72 .v_swapout = EARLY_COUNTER,
73 .v_swappgsin = EARLY_COUNTER,
74 .v_swappgsout = EARLY_COUNTER,
75 .v_vnodein = EARLY_COUNTER,
76 .v_vnodeout = EARLY_COUNTER,
77 .v_vnodepgsin = EARLY_COUNTER,
78 .v_vnodepgsout = EARLY_COUNTER,
79 .v_intrans = EARLY_COUNTER,
80 .v_reactivated = EARLY_COUNTER,
81 .v_pdwakeups = EARLY_COUNTER,
82 .v_pdpages = EARLY_COUNTER,
83 .v_pdshortfalls = EARLY_COUNTER,
84 .v_dfree = EARLY_COUNTER,
85 .v_pfree = EARLY_COUNTER,
86 .v_tfree = EARLY_COUNTER,
87 .v_forks = EARLY_COUNTER,
88 .v_vforks = EARLY_COUNTER,
89 .v_rforks = EARLY_COUNTER,
90 .v_kthreads = EARLY_COUNTER,
91 .v_forkpages = EARLY_COUNTER,
92 .v_vforkpages = EARLY_COUNTER,
93 .v_rforkpages = EARLY_COUNTER,
94 .v_kthreadpages = EARLY_COUNTER,
95 .v_wire_count = EARLY_COUNTER,
96 };
97
98 u_long __exclusive_cache_line vm_user_wire_count;
99
100 static void
vmcounter_startup(void)101 vmcounter_startup(void)
102 {
103 counter_u64_t *cnt = (counter_u64_t *)&vm_cnt;
104
105 COUNTER_ARRAY_ALLOC(cnt, VM_METER_NCOUNTERS, M_WAITOK);
106 }
107 SYSINIT(counter, SI_SUB_KMEM, SI_ORDER_FIRST, vmcounter_startup, NULL);
108
109 SYSCTL_UINT(_vm, VM_V_FREE_MIN, v_free_min,
110 CTLFLAG_RW, &vm_cnt.v_free_min, 0, "Minimum low-free-pages threshold");
111 SYSCTL_UINT(_vm, VM_V_FREE_TARGET, v_free_target,
112 CTLFLAG_RW, &vm_cnt.v_free_target, 0, "Desired free pages");
113 SYSCTL_UINT(_vm, VM_V_FREE_RESERVED, v_free_reserved,
114 CTLFLAG_RW, &vm_cnt.v_free_reserved, 0, "Pages reserved for deadlock");
115 SYSCTL_UINT(_vm, VM_V_INACTIVE_TARGET, v_inactive_target,
116 CTLFLAG_RW, &vm_cnt.v_inactive_target, 0, "Pages desired inactive");
117 SYSCTL_UINT(_vm, VM_V_PAGEOUT_FREE_MIN, v_pageout_free_min,
118 CTLFLAG_RW, &vm_cnt.v_pageout_free_min, 0, "Min pages reserved for kernel");
119 SYSCTL_UINT(_vm, OID_AUTO, v_free_severe,
120 CTLFLAG_RW, &vm_cnt.v_free_severe, 0, "Severe page depletion point");
121
122 static int
sysctl_vm_loadavg(SYSCTL_HANDLER_ARGS)123 sysctl_vm_loadavg(SYSCTL_HANDLER_ARGS)
124 {
125
126 #ifdef SCTL_MASK32
127 uint32_t la[4];
128
129 if (req->flags & SCTL_MASK32) {
130 la[0] = averunnable.ldavg[0];
131 la[1] = averunnable.ldavg[1];
132 la[2] = averunnable.ldavg[2];
133 la[3] = averunnable.fscale;
134 return SYSCTL_OUT(req, la, sizeof(la));
135 } else
136 #endif
137 return SYSCTL_OUT(req, &averunnable, sizeof(averunnable));
138 }
139 SYSCTL_PROC(_vm, VM_LOADAVG, loadavg, CTLTYPE_STRUCT | CTLFLAG_RD |
140 CTLFLAG_MPSAFE, NULL, 0, sysctl_vm_loadavg, "S,loadavg",
141 "Machine loadaverage history");
142
143 #if defined(COMPAT_FREEBSD11)
144 struct vmtotal11 {
145 int16_t t_rq;
146 int16_t t_dw;
147 int16_t t_pw;
148 int16_t t_sl;
149 int16_t t_sw;
150 int32_t t_vm;
151 int32_t t_avm;
152 int32_t t_rm;
153 int32_t t_arm;
154 int32_t t_vmshr;
155 int32_t t_avmshr;
156 int32_t t_rmshr;
157 int32_t t_armshr;
158 int32_t t_free;
159 };
160 #endif
161
162 static int
vmtotal(SYSCTL_HANDLER_ARGS)163 vmtotal(SYSCTL_HANDLER_ARGS)
164 {
165 struct vmtotal total;
166 #if defined(COMPAT_FREEBSD11)
167 struct vmtotal11 total11;
168 #endif
169 vm_object_t object;
170 struct proc *p;
171 struct thread *td;
172
173 if (req->oldptr == NULL) {
174 #if defined(COMPAT_FREEBSD11)
175 if (curproc->p_osrel < P_OSREL_VMTOTAL64)
176 return (SYSCTL_OUT(req, NULL, sizeof(total11)));
177 #endif
178 return (SYSCTL_OUT(req, NULL, sizeof(total)));
179 }
180 bzero(&total, sizeof(total));
181
182 /*
183 * Calculate process statistics.
184 */
185 sx_slock(&allproc_lock);
186 FOREACH_PROC_IN_SYSTEM(p) {
187 if ((p->p_flag & P_SYSTEM) != 0)
188 continue;
189 PROC_LOCK(p);
190 if (p->p_state != PRS_NEW) {
191 FOREACH_THREAD_IN_PROC(p, td) {
192 thread_lock(td);
193 switch (TD_GET_STATE(td)) {
194 case TDS_INHIBITED:
195 if (TD_IS_SWAPPED(td))
196 total.t_sw++;
197 else if (TD_IS_SLEEPING(td)) {
198 if (td->td_priority <= PZERO)
199 total.t_dw++;
200 else
201 total.t_sl++;
202 }
203 break;
204 case TDS_CAN_RUN:
205 total.t_sw++;
206 break;
207 case TDS_RUNQ:
208 case TDS_RUNNING:
209 total.t_rq++;
210 break;
211 default:
212 break;
213 }
214 thread_unlock(td);
215 }
216 }
217 PROC_UNLOCK(p);
218 }
219 sx_sunlock(&allproc_lock);
220 /*
221 * Calculate object memory usage statistics.
222 */
223 mtx_lock(&vm_object_list_mtx);
224 TAILQ_FOREACH(object, &vm_object_list, object_list) {
225 /*
226 * Perform unsynchronized reads on the object. In
227 * this case, the lack of synchronization should not
228 * impair the accuracy of the reported statistics.
229 */
230 if ((object->flags & OBJ_FICTITIOUS) != 0) {
231 /*
232 * Devices, like /dev/mem, will badly skew our totals.
233 */
234 continue;
235 }
236 if (object->ref_count == 0) {
237 /*
238 * Also skip unreferenced objects, including
239 * vnodes representing mounted file systems.
240 */
241 continue;
242 }
243 if (object->ref_count == 1 &&
244 (object->flags & (OBJ_ANON | OBJ_SWAP)) == OBJ_SWAP) {
245 /*
246 * Also skip otherwise unreferenced swap
247 * objects backing tmpfs vnodes, and POSIX or
248 * SysV shared memory.
249 */
250 continue;
251 }
252 total.t_vm += object->size;
253 total.t_rm += object->resident_page_count;
254 if (vm_object_is_active(object)) {
255 total.t_avm += object->size;
256 total.t_arm += object->resident_page_count;
257 }
258 if (object->shadow_count > 1) {
259 /* shared object */
260 total.t_vmshr += object->size;
261 total.t_rmshr += object->resident_page_count;
262 if (vm_object_is_active(object)) {
263 total.t_avmshr += object->size;
264 total.t_armshr += object->resident_page_count;
265 }
266 }
267 }
268 mtx_unlock(&vm_object_list_mtx);
269 total.t_pw = vm_wait_count();
270 total.t_free = vm_free_count();
271 #if defined(COMPAT_FREEBSD11)
272 /* sysctl(8) allocates twice as much memory as reported by sysctl(3) */
273 if (curproc->p_osrel < P_OSREL_VMTOTAL64 && (req->oldlen ==
274 sizeof(total11) || req->oldlen == 2 * sizeof(total11))) {
275 bzero(&total11, sizeof(total11));
276 total11.t_rq = total.t_rq;
277 total11.t_dw = total.t_dw;
278 total11.t_pw = total.t_pw;
279 total11.t_sl = total.t_sl;
280 total11.t_sw = total.t_sw;
281 total11.t_vm = total.t_vm; /* truncate */
282 total11.t_avm = total.t_avm; /* truncate */
283 total11.t_rm = total.t_rm; /* truncate */
284 total11.t_arm = total.t_arm; /* truncate */
285 total11.t_vmshr = total.t_vmshr; /* truncate */
286 total11.t_avmshr = total.t_avmshr; /* truncate */
287 total11.t_rmshr = total.t_rmshr; /* truncate */
288 total11.t_armshr = total.t_armshr; /* truncate */
289 total11.t_free = total.t_free; /* truncate */
290 return (SYSCTL_OUT(req, &total11, sizeof(total11)));
291 }
292 #endif
293 return (SYSCTL_OUT(req, &total, sizeof(total)));
294 }
295
296 SYSCTL_PROC(_vm, VM_TOTAL, vmtotal, CTLTYPE_OPAQUE | CTLFLAG_RD |
297 CTLFLAG_MPSAFE, NULL, 0, vmtotal, "S,vmtotal",
298 "System virtual memory statistics");
299 SYSCTL_NODE(_vm, OID_AUTO, stats, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
300 "VM meter stats");
301 static SYSCTL_NODE(_vm_stats, OID_AUTO, sys, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
302 "VM meter sys stats");
303 static SYSCTL_NODE(_vm_stats, OID_AUTO, vm, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
304 "VM meter vm stats");
305 SYSCTL_NODE(_vm_stats, OID_AUTO, misc, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
306 "VM meter misc stats");
307
308 static int
sysctl_handle_vmstat(SYSCTL_HANDLER_ARGS)309 sysctl_handle_vmstat(SYSCTL_HANDLER_ARGS)
310 {
311 uint64_t val;
312 #ifdef COMPAT_FREEBSD11
313 uint32_t val32;
314 #endif
315
316 val = counter_u64_fetch(*(counter_u64_t *)arg1);
317 #ifdef COMPAT_FREEBSD11
318 if (req->oldlen == sizeof(val32)) {
319 val32 = val; /* truncate */
320 return (SYSCTL_OUT(req, &val32, sizeof(val32)));
321 }
322 #endif
323 return (SYSCTL_OUT(req, &val, sizeof(val)));
324 }
325
326 #define VM_STATS(parent, var, descr) \
327 SYSCTL_OID(parent, OID_AUTO, var, CTLTYPE_U64 | CTLFLAG_MPSAFE | \
328 CTLFLAG_RD, &vm_cnt.var, 0, sysctl_handle_vmstat, "QU", descr)
329 #define VM_STATS_VM(var, descr) VM_STATS(_vm_stats_vm, var, descr)
330 #define VM_STATS_SYS(var, descr) VM_STATS(_vm_stats_sys, var, descr)
331
332 VM_STATS_SYS(v_swtch, "Context switches");
333 VM_STATS_SYS(v_trap, "Traps");
334 VM_STATS_SYS(v_syscall, "System calls");
335 VM_STATS_SYS(v_intr, "Device interrupts");
336 VM_STATS_SYS(v_soft, "Software interrupts");
337 VM_STATS_VM(v_vm_faults, "Address memory faults");
338 VM_STATS_VM(v_io_faults, "Page faults requiring I/O");
339 VM_STATS_VM(v_cow_faults, "Copy-on-write faults");
340 VM_STATS_VM(v_cow_optim, "Optimized COW faults");
341 VM_STATS_VM(v_zfod, "Pages zero-filled on demand");
342 VM_STATS_VM(v_ozfod, "Optimized zero fill pages");
343 VM_STATS_VM(v_swapin, "Swap pager pageins");
344 VM_STATS_VM(v_swapout, "Swap pager pageouts");
345 VM_STATS_VM(v_swappgsin, "Swap pages swapped in");
346 VM_STATS_VM(v_swappgsout, "Swap pages swapped out");
347 VM_STATS_VM(v_vnodein, "Vnode pager pageins");
348 VM_STATS_VM(v_vnodeout, "Vnode pager pageouts");
349 VM_STATS_VM(v_vnodepgsin, "Vnode pages paged in");
350 VM_STATS_VM(v_vnodepgsout, "Vnode pages paged out");
351 VM_STATS_VM(v_intrans, "In transit page faults");
352 VM_STATS_VM(v_reactivated, "Pages reactivated by pagedaemon");
353 VM_STATS_VM(v_pdwakeups, "Pagedaemon wakeups");
354 VM_STATS_VM(v_pdshortfalls, "Page reclamation shortfalls");
355 VM_STATS_VM(v_dfree, "Pages freed by pagedaemon");
356 VM_STATS_VM(v_pfree, "Pages freed by exiting processes");
357 VM_STATS_VM(v_tfree, "Total pages freed");
358 VM_STATS_VM(v_forks, "Number of fork() calls");
359 VM_STATS_VM(v_vforks, "Number of vfork() calls");
360 VM_STATS_VM(v_rforks, "Number of rfork() calls");
361 VM_STATS_VM(v_kthreads, "Number of fork() calls by kernel");
362 VM_STATS_VM(v_forkpages, "VM pages affected by fork()");
363 VM_STATS_VM(v_vforkpages, "VM pages affected by vfork()");
364 VM_STATS_VM(v_rforkpages, "VM pages affected by rfork()");
365 VM_STATS_VM(v_kthreadpages, "VM pages affected by fork() by kernel");
366
367 static int
sysctl_handle_vmstat_proc(SYSCTL_HANDLER_ARGS)368 sysctl_handle_vmstat_proc(SYSCTL_HANDLER_ARGS)
369 {
370 u_int (*fn)(void);
371 uint32_t val;
372
373 fn = arg1;
374 val = fn();
375 return (SYSCTL_OUT(req, &val, sizeof(val)));
376 }
377
378 #define VM_STATS_PROC(var, descr, fn) \
379 SYSCTL_OID(_vm_stats_vm, OID_AUTO, var, CTLTYPE_U32 | CTLFLAG_MPSAFE | \
380 CTLFLAG_RD, fn, 0, sysctl_handle_vmstat_proc, "IU", descr)
381
382 #define VM_STATS_UINT(var, descr) \
383 SYSCTL_UINT(_vm_stats_vm, OID_AUTO, var, CTLFLAG_RD, &vm_cnt.var, 0, descr)
384 #define VM_STATS_ULONG(var, descr) \
385 SYSCTL_ULONG(_vm_stats_vm, OID_AUTO, var, CTLFLAG_RD, &vm_cnt.var, 0, descr)
386
387 VM_STATS_UINT(v_page_size, "Page size in bytes");
388 VM_STATS_UINT(v_page_count, "Total number of pages in system");
389 VM_STATS_UINT(v_free_reserved, "Pages reserved for deadlock");
390 VM_STATS_UINT(v_free_target, "Pages desired free");
391 VM_STATS_UINT(v_free_min, "Minimum low-free-pages threshold");
392 VM_STATS_PROC(v_free_count, "Free pages", vm_free_count);
393 VM_STATS_PROC(v_wire_count, "Wired pages", vm_wire_count);
394 VM_STATS_PROC(v_active_count, "Active pages", vm_active_count);
395 VM_STATS_UINT(v_inactive_target, "Desired inactive pages");
396 VM_STATS_PROC(v_inactive_count, "Inactive pages", vm_inactive_count);
397 VM_STATS_PROC(v_laundry_count, "Pages eligible for laundering",
398 vm_laundry_count);
399 VM_STATS_UINT(v_pageout_free_min, "Min pages reserved for kernel");
400 VM_STATS_UINT(v_interrupt_free_min, "Reserved pages for interrupt code");
401 VM_STATS_UINT(v_free_severe, "Severe page depletion point");
402
403 SYSCTL_ULONG(_vm_stats_vm, OID_AUTO, v_user_wire_count, CTLFLAG_RD,
404 &vm_user_wire_count, 0, "User-wired virtual memory");
405
406 #ifdef COMPAT_FREEBSD11
407 /*
408 * Provide compatibility sysctls for the benefit of old utilities which exit
409 * with an error if they cannot be found.
410 */
411 SYSCTL_UINT(_vm_stats_vm, OID_AUTO, v_cache_count, CTLFLAG_RD,
412 SYSCTL_NULL_UINT_PTR, 0, "Dummy for compatibility");
413 SYSCTL_UINT(_vm_stats_vm, OID_AUTO, v_tcached, CTLFLAG_RD,
414 SYSCTL_NULL_UINT_PTR, 0, "Dummy for compatibility");
415 #endif
416
417 u_int
vm_free_count(void)418 vm_free_count(void)
419 {
420 u_int v;
421 int i;
422
423 v = 0;
424 for (i = 0; i < vm_ndomains; i++)
425 v += vm_dom[i].vmd_free_count;
426
427 return (v);
428 }
429
430 static u_int
vm_pagequeue_count(int pq)431 vm_pagequeue_count(int pq)
432 {
433 u_int v;
434 int i;
435
436 v = 0;
437 for (i = 0; i < vm_ndomains; i++)
438 v += vm_dom[i].vmd_pagequeues[pq].pq_cnt;
439
440 return (v);
441 }
442
443 u_int
vm_active_count(void)444 vm_active_count(void)
445 {
446
447 return (vm_pagequeue_count(PQ_ACTIVE));
448 }
449
450 u_int
vm_inactive_count(void)451 vm_inactive_count(void)
452 {
453
454 return (vm_pagequeue_count(PQ_INACTIVE));
455 }
456
457 u_int
vm_laundry_count(void)458 vm_laundry_count(void)
459 {
460
461 return (vm_pagequeue_count(PQ_LAUNDRY) +
462 vm_pagequeue_count(PQ_UNSWAPPABLE));
463 }
464
465 static int
sysctl_vm_pdpages(SYSCTL_HANDLER_ARGS)466 sysctl_vm_pdpages(SYSCTL_HANDLER_ARGS)
467 {
468 struct vm_pagequeue *pq;
469 uint64_t ret;
470 int dom, i;
471
472 ret = counter_u64_fetch(vm_cnt.v_pdpages);
473 for (dom = 0; dom < vm_ndomains; dom++)
474 for (i = 0; i < PQ_COUNT; i++) {
475 pq = &VM_DOMAIN(dom)->vmd_pagequeues[i];
476 ret += pq->pq_pdpages;
477 }
478 return (SYSCTL_OUT(req, &ret, sizeof(ret)));
479 }
480 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_pdpages,
481 CTLTYPE_U64 | CTLFLAG_MPSAFE | CTLFLAG_RD, NULL, 0, sysctl_vm_pdpages, "QU",
482 "Pages analyzed by pagedaemon");
483
484 static int
sysctl_vm_laundry_pages(SYSCTL_HANDLER_ARGS)485 sysctl_vm_laundry_pages(SYSCTL_HANDLER_ARGS)
486 {
487 struct vm_domain *vmd;
488 u_int ret;
489
490 vmd = arg1;
491 ret = vmd->vmd_pagequeues[PQ_LAUNDRY].pq_cnt +
492 vmd->vmd_pagequeues[PQ_UNSWAPPABLE].pq_cnt;
493 return (SYSCTL_OUT(req, &ret, sizeof(ret)));
494 }
495
496 static void
vm_domain_stats_init(struct vm_domain * vmd,struct sysctl_oid * parent)497 vm_domain_stats_init(struct vm_domain *vmd, struct sysctl_oid *parent)
498 {
499 struct sysctl_oid *oid;
500
501 vmd->vmd_oid = SYSCTL_ADD_NODE(NULL, SYSCTL_CHILDREN(parent), OID_AUTO,
502 vmd->vmd_name, CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "");
503 oid = SYSCTL_ADD_NODE(NULL, SYSCTL_CHILDREN(vmd->vmd_oid), OID_AUTO,
504 "stats", CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "");
505 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO,
506 "free_count", CTLFLAG_RD, &vmd->vmd_free_count, 0,
507 "Free pages");
508 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO,
509 "active", CTLFLAG_RD, &vmd->vmd_pagequeues[PQ_ACTIVE].pq_cnt, 0,
510 "Active pages");
511 SYSCTL_ADD_U64(NULL, SYSCTL_CHILDREN(oid), OID_AUTO,
512 "actpdpgs", CTLFLAG_RD,
513 &vmd->vmd_pagequeues[PQ_ACTIVE].pq_pdpages, 0,
514 "Active pages scanned by the page daemon");
515 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO,
516 "inactive", CTLFLAG_RD, &vmd->vmd_pagequeues[PQ_INACTIVE].pq_cnt, 0,
517 "Inactive pages");
518 SYSCTL_ADD_U64(NULL, SYSCTL_CHILDREN(oid), OID_AUTO,
519 "inactpdpgs", CTLFLAG_RD,
520 &vmd->vmd_pagequeues[PQ_INACTIVE].pq_pdpages, 0,
521 "Inactive pages scanned by the page daemon");
522 SYSCTL_ADD_PROC(NULL, SYSCTL_CHILDREN(oid), OID_AUTO,
523 "laundry", CTLFLAG_RD | CTLTYPE_UINT, vmd, 0,
524 sysctl_vm_laundry_pages, "IU",
525 "laundry pages");
526 SYSCTL_ADD_U64(NULL, SYSCTL_CHILDREN(oid), OID_AUTO,
527 "laundpdpgs", CTLFLAG_RD,
528 &vmd->vmd_pagequeues[PQ_LAUNDRY].pq_pdpages, 0,
529 "Laundry pages scanned by the page daemon");
530 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, "unswappable",
531 CTLFLAG_RD, &vmd->vmd_pagequeues[PQ_UNSWAPPABLE].pq_cnt, 0,
532 "Unswappable pages");
533 SYSCTL_ADD_U64(NULL, SYSCTL_CHILDREN(oid), OID_AUTO,
534 "unswppdpgs", CTLFLAG_RD,
535 &vmd->vmd_pagequeues[PQ_UNSWAPPABLE].pq_pdpages, 0,
536 "Unswappable pages scanned by the page daemon");
537 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO,
538 "inactive_target", CTLFLAG_RD, &vmd->vmd_inactive_target, 0,
539 "Target inactive pages");
540 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO,
541 "free_target", CTLFLAG_RD, &vmd->vmd_free_target, 0,
542 "Target free pages");
543 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO,
544 "free_reserved", CTLFLAG_RD, &vmd->vmd_free_reserved, 0,
545 "Reserved free pages");
546 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO,
547 "free_min", CTLFLAG_RD, &vmd->vmd_free_min, 0,
548 "Minimum free pages");
549 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO,
550 "free_severe", CTLFLAG_RD, &vmd->vmd_free_severe, 0,
551 "Severe free pages");
552 SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO,
553 "inactive_pps", CTLFLAG_RD, &vmd->vmd_inactive_pps, 0,
554 "inactive pages freed/second");
555
556 }
557
558 static void
vm_stats_init(void * arg __unused)559 vm_stats_init(void *arg __unused)
560 {
561 struct sysctl_oid *oid;
562 int i;
563
564 oid = SYSCTL_ADD_NODE(NULL, SYSCTL_STATIC_CHILDREN(_vm), OID_AUTO,
565 "domain", CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "");
566 for (i = 0; i < vm_ndomains; i++)
567 vm_domain_stats_init(VM_DOMAIN(i), oid);
568 }
569
570 SYSINIT(vmstats_init, SI_SUB_VM_CONF, SI_ORDER_FIRST, vm_stats_init, NULL);
571