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
vmcounter_startup(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
sysctl_vm_loadavg(SYSCTL_HANDLER_ARGS)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
vmtotal(SYSCTL_HANDLER_ARGS)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_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
293 SYSCTL_PROC(_vm, VM_TOTAL, vmtotal, CTLTYPE_OPAQUE | CTLFLAG_RD |
294 CTLFLAG_MPSAFE, NULL, 0, vmtotal, "S,vmtotal",
295 "System virtual memory statistics");
296 SYSCTL_NODE(_vm, OID_AUTO, stats, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
297 "VM meter stats");
298 static SYSCTL_NODE(_vm_stats, OID_AUTO, sys, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
299 "VM meter sys stats");
300 static SYSCTL_NODE(_vm_stats, OID_AUTO, vm, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
301 "VM meter vm stats");
302 SYSCTL_NODE(_vm_stats, OID_AUTO, misc, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
303 "VM meter misc stats");
304
305 static int
sysctl_handle_vmstat(SYSCTL_HANDLER_ARGS)306 sysctl_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
329 VM_STATS_SYS(v_swtch, "Context switches");
330 VM_STATS_SYS(v_trap, "Traps");
331 VM_STATS_SYS(v_syscall, "System calls");
332 VM_STATS_SYS(v_intr, "Device interrupts");
333 VM_STATS_SYS(v_soft, "Software interrupts");
334 VM_STATS_VM(v_vm_faults, "Address memory faults");
335 VM_STATS_VM(v_io_faults, "Page faults requiring I/O");
336 VM_STATS_VM(v_cow_faults, "Copy-on-write faults");
337 VM_STATS_VM(v_cow_optim, "Optimized COW faults");
338 VM_STATS_VM(v_zfod, "Pages zero-filled on demand");
339 VM_STATS_VM(v_ozfod, "Optimized zero fill pages");
340 VM_STATS_VM(v_swapin, "Swap pager pageins");
341 VM_STATS_VM(v_swapout, "Swap pager pageouts");
342 VM_STATS_VM(v_swappgsin, "Swap pages swapped in");
343 VM_STATS_VM(v_swappgsout, "Swap pages swapped out");
344 VM_STATS_VM(v_vnodein, "Vnode pager pageins");
345 VM_STATS_VM(v_vnodeout, "Vnode pager pageouts");
346 VM_STATS_VM(v_vnodepgsin, "Vnode pages paged in");
347 VM_STATS_VM(v_vnodepgsout, "Vnode pages paged out");
348 VM_STATS_VM(v_intrans, "In transit page faults");
349 VM_STATS_VM(v_reactivated, "Pages reactivated by pagedaemon");
350 VM_STATS_VM(v_pdwakeups, "Pagedaemon wakeups");
351 VM_STATS_VM(v_pdshortfalls, "Page reclamation shortfalls");
352 VM_STATS_VM(v_dfree, "Pages freed by pagedaemon");
353 VM_STATS_VM(v_pfree, "Pages freed by exiting processes");
354 VM_STATS_VM(v_tfree, "Total pages freed");
355 VM_STATS_VM(v_forks, "Number of fork() calls");
356 VM_STATS_VM(v_vforks, "Number of vfork() calls");
357 VM_STATS_VM(v_rforks, "Number of rfork() calls");
358 VM_STATS_VM(v_kthreads, "Number of fork() calls by kernel");
359 VM_STATS_VM(v_forkpages, "VM pages affected by fork()");
360 VM_STATS_VM(v_vforkpages, "VM pages affected by vfork()");
361 VM_STATS_VM(v_rforkpages, "VM pages affected by rfork()");
362 VM_STATS_VM(v_kthreadpages, "VM pages affected by fork() by kernel");
363
364 static int
sysctl_handle_vmstat_proc(SYSCTL_HANDLER_ARGS)365 sysctl_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
384 VM_STATS_UINT(v_page_size, "Page size in bytes");
385 VM_STATS_UINT(v_page_count, "Total number of pages in system");
386 VM_STATS_UINT(v_free_reserved, "Pages reserved for deadlock");
387 VM_STATS_UINT(v_free_target, "Pages desired free");
388 VM_STATS_UINT(v_free_min, "Minimum low-free-pages threshold");
389 VM_STATS_PROC(v_free_count, "Free pages", vm_free_count);
390 VM_STATS_PROC(v_wire_count, "Wired pages", vm_wire_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
vm_free_count(void)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
vm_pagequeue_count(int pq)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
vm_active_count(void)441 vm_active_count(void)
442 {
443
444 return (vm_pagequeue_count(PQ_ACTIVE));
445 }
446
447 u_int
vm_inactive_count(void)448 vm_inactive_count(void)
449 {
450
451 return (vm_pagequeue_count(PQ_INACTIVE));
452 }
453
454 u_int
vm_laundry_count(void)455 vm_laundry_count(void)
456 {
457
458 return (vm_pagequeue_count(PQ_LAUNDRY));
459 }
460
461 static int
sysctl_vm_pdpages(SYSCTL_HANDLER_ARGS)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
vm_domain_stats_init(struct vm_domain * vmd,struct sysctl_oid * parent)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
vm_stats_init(void * arg __unused)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