Adjust pamp_growkernel(), elf_brand_inuse(), and ktrace() to use
[dragonfly.git] / sys / vm / vm_meter.c
CommitLineData
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1/*
2 * Copyright (c) 1982, 1986, 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * @(#)vm_meter.c 8.4 (Berkeley) 1/4/94
34 * $FreeBSD: src/sys/vm/vm_meter.c,v 1.34.2.7 2002/10/10 19:28:22 dillon Exp $
344ad853 35 * $DragonFly: src/sys/vm/vm_meter.c,v 1.8 2005/11/14 18:50:15 dillon Exp $
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36 */
37
38#include <sys/param.h>
39#include <sys/proc.h>
40#include <sys/systm.h>
41#include <sys/kernel.h>
42#include <sys/resource.h>
43#include <sys/vmmeter.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 <sys/lock.h>
50#include <vm/pmap.h>
51#include <vm/vm_map.h>
52#include <vm/vm_object.h>
53#include <sys/sysctl.h>
54
12e4aaff 55struct vmstats vmstats;
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56
57static int maxslp = MAXSLP;
58
59SYSCTL_UINT(_vm, VM_V_FREE_MIN, v_free_min,
12e4aaff 60 CTLFLAG_RW, &vmstats.v_free_min, 0, "");
984263bc 61SYSCTL_UINT(_vm, VM_V_FREE_TARGET, v_free_target,
12e4aaff 62 CTLFLAG_RW, &vmstats.v_free_target, 0, "");
984263bc 63SYSCTL_UINT(_vm, VM_V_FREE_RESERVED, v_free_reserved,
12e4aaff 64 CTLFLAG_RW, &vmstats.v_free_reserved, 0, "");
984263bc 65SYSCTL_UINT(_vm, VM_V_INACTIVE_TARGET, v_inactive_target,
12e4aaff 66 CTLFLAG_RW, &vmstats.v_inactive_target, 0, "");
984263bc 67SYSCTL_UINT(_vm, VM_V_CACHE_MIN, v_cache_min,
12e4aaff 68 CTLFLAG_RW, &vmstats.v_cache_min, 0, "");
984263bc 69SYSCTL_UINT(_vm, VM_V_CACHE_MAX, v_cache_max,
12e4aaff 70 CTLFLAG_RW, &vmstats.v_cache_max, 0, "");
984263bc 71SYSCTL_UINT(_vm, VM_V_PAGEOUT_FREE_MIN, v_pageout_free_min,
12e4aaff 72 CTLFLAG_RW, &vmstats.v_pageout_free_min, 0, "");
984263bc 73SYSCTL_UINT(_vm, OID_AUTO, v_free_severe,
12e4aaff 74 CTLFLAG_RW, &vmstats.v_free_severe, 0, "");
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75
76SYSCTL_STRUCT(_vm, VM_LOADAVG, loadavg, CTLFLAG_RD,
77 &averunnable, loadavg, "Machine loadaverage history");
78
79static int
6bdb32ed 80do_vmtotal(SYSCTL_HANDLER_ARGS)
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81{
82 struct proc *p;
83 struct vmtotal total, *totalp;
84 vm_map_entry_t entry;
85 vm_object_t object;
86 vm_map_t map;
87 int paging;
88
89 totalp = &total;
90 bzero(totalp, sizeof *totalp);
91 /*
92 * Mark all objects as inactive.
93 */
94 for (object = TAILQ_FIRST(&vm_object_list);
95 object != NULL;
96 object = TAILQ_NEXT(object,object_list))
97 vm_object_clear_flag(object, OBJ_ACTIVE);
98 /*
99 * Calculate process statistics.
100 */
101 for (p = allproc.lh_first; p != 0; p = p->p_list.le_next) {
102 if (p->p_flag & P_SYSTEM)
103 continue;
104 switch (p->p_stat) {
105 case 0:
106 continue;
107
108 case SSLEEP:
344ad853 109 if ((p->p_flag & P_SWAPPEDOUT) == 0) {
377d4740 110 if ((p->p_flag & P_SINTR) == 0)
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111 totalp->t_dw++;
112 else if (p->p_slptime < maxslp)
113 totalp->t_sl++;
344ad853 114 } else if (p->p_slptime < maxslp) {
984263bc 115 totalp->t_sw++;
344ad853 116 }
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117 if (p->p_slptime >= maxslp)
118 continue;
119 break;
120
121 case SRUN:
122 case SIDL:
344ad853 123 if (p->p_flag & P_SWAPPEDOUT)
984263bc 124 totalp->t_sw++;
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125 else
126 totalp->t_rq++;
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127 if (p->p_stat == SIDL)
128 continue;
129 break;
130 }
131 /*
132 * Note active objects.
133 */
134 paging = 0;
135 for (map = &p->p_vmspace->vm_map, entry = map->header.next;
136 entry != &map->header; entry = entry->next) {
137 if ((entry->eflags & MAP_ENTRY_IS_SUB_MAP) ||
138 entry->object.vm_object == NULL)
139 continue;
140 vm_object_set_flag(entry->object.vm_object, OBJ_ACTIVE);
141 paging |= entry->object.vm_object->paging_in_progress;
142 }
143 if (paging)
144 totalp->t_pw++;
145 }
146 /*
147 * Calculate object memory usage statistics.
148 */
149 for (object = TAILQ_FIRST(&vm_object_list);
150 object != NULL;
151 object = TAILQ_NEXT(object, object_list)) {
152 /*
153 * devices, like /dev/mem, will badly skew our totals
154 */
155 if (object->type == OBJT_DEVICE)
156 continue;
157 totalp->t_vm += object->size;
158 totalp->t_rm += object->resident_page_count;
159 if (object->flags & OBJ_ACTIVE) {
160 totalp->t_avm += object->size;
161 totalp->t_arm += object->resident_page_count;
162 }
163 if (object->shadow_count > 1) {
164 /* shared object */
165 totalp->t_vmshr += object->size;
166 totalp->t_rmshr += object->resident_page_count;
167 if (object->flags & OBJ_ACTIVE) {
168 totalp->t_avmshr += object->size;
169 totalp->t_armshr += object->resident_page_count;
170 }
171 }
172 }
12e4aaff 173 totalp->t_free = vmstats.v_free_count + vmstats.v_cache_count;
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174 return (sysctl_handle_opaque(oidp, totalp, sizeof total, req));
175}
176
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177static int
178do_vmstats(SYSCTL_HANDLER_ARGS)
179{
180 struct vmstats vms = vmstats;
181 return (sysctl_handle_opaque(oidp, &vms, sizeof(vms), req));
182}
183
184static int
185do_vmmeter(SYSCTL_HANDLER_ARGS)
186{
187 int boffset = offsetof(struct vmmeter, vmmeter_uint_begin);
188 int eoffset = offsetof(struct vmmeter, vmmeter_uint_end);
189 struct vmmeter vmm;
190 int i;
191
192 bzero(&vmm, sizeof(vmm));
193 for (i = 0; i < ncpus; ++i) {
194 int off;
195 struct globaldata *gd = globaldata_find(i);
196
197 for (off = boffset; off <= eoffset; off += sizeof(u_int)) {
198 *(u_int *)((char *)&vmm + off) +=
199 *(u_int *)((char *)&gd->gd_cnt + off);
200 }
201
202 }
203 return (sysctl_handle_opaque(oidp, &vmm, sizeof(vmm), req));
204}
205
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206/*
207 * vcnt() - accumulate statistics from the cnt structure for each cpu
208 *
209 * The vmmeter structure is now per-cpu as well as global. Those
210 * statistics which can be kept on a per-cpu basis (to avoid cache
211 * stalls between cpus) can be moved to the per-cpu vmmeter. Remaining
212 * statistics, such as v_free_reserved, are left in the global
213 * structure.
214 *
215 * (sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req)
216 */
217static int
218vcnt(SYSCTL_HANDLER_ARGS)
219{
220 int i;
221 int count = 0;
6bdb32ed 222 int offset = arg2;
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223
224 for (i = 0; i < ncpus; ++i) {
225 struct globaldata *gd = globaldata_find(i);
226 count += *(int *)((char *)&gd->gd_cnt + offset);
227 }
228 return(SYSCTL_OUT(req, &count, sizeof(int)));
229}
230
6bdb32ed 231#define VMMETEROFF(var) offsetof(struct vmmeter, var)
12e4aaff 232
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233SYSCTL_PROC(_vm, OID_AUTO, vmtotal, CTLTYPE_OPAQUE|CTLFLAG_RD,
234 0, sizeof(struct vmtotal), do_vmtotal, "S,vmtotal",
235 "System virtual memory aggregate");
236SYSCTL_PROC(_vm, OID_AUTO, vmstats, CTLTYPE_OPAQUE|CTLFLAG_RD,
237 0, sizeof(struct vmstats), do_vmstats, "S,vmstats",
984263bc 238 "System virtual memory statistics");
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239SYSCTL_PROC(_vm, OID_AUTO, vmmeter, CTLTYPE_OPAQUE|CTLFLAG_RD,
240 0, sizeof(struct vmmeter), do_vmmeter, "S,vmmeter",
241 "System per-cpu statistics");
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242SYSCTL_NODE(_vm, OID_AUTO, stats, CTLFLAG_RW, 0, "VM meter stats");
243SYSCTL_NODE(_vm_stats, OID_AUTO, sys, CTLFLAG_RW, 0, "VM meter sys stats");
244SYSCTL_NODE(_vm_stats, OID_AUTO, vm, CTLFLAG_RW, 0, "VM meter vm stats");
245SYSCTL_NODE(_vm_stats, OID_AUTO, misc, CTLFLAG_RW, 0, "VM meter misc stats");
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246
247SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_swtch, CTLTYPE_UINT|CTLFLAG_RD,
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248 0, VMMETEROFF(v_swtch), vcnt, "IU", "Context switches");
249SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_intrans_coll, CTLTYPE_UINT|CTLFLAG_RD,
250 0, VMMETEROFF(v_intrans_coll), vcnt, "IU", "");
251SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_intrans_wait, CTLTYPE_UINT|CTLFLAG_RD,
252 0, VMMETEROFF(v_intrans_wait), vcnt, "IU", "");
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253SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_forwarded_ints, CTLTYPE_UINT|CTLFLAG_RD,
254 0, VMMETEROFF(v_forwarded_ints), vcnt, "IU", "");
255SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_forwarded_hits, CTLTYPE_UINT|CTLFLAG_RD,
256 0, VMMETEROFF(v_forwarded_hits), vcnt, "IU", "");
257SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_forwarded_misses, CTLTYPE_UINT|CTLFLAG_RD,
258 0, VMMETEROFF(v_forwarded_misses), vcnt, "IU", "");
12e4aaff 259SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_trap, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 260 0, VMMETEROFF(v_trap), vcnt, "IU", "Traps");
12e4aaff 261SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_syscall, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 262 0, VMMETEROFF(v_syscall), vcnt, "IU", "Syscalls");
12e4aaff 263SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_intr, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 264 0, VMMETEROFF(v_intr), vcnt, "IU", "Hardware interrupts");
12e4aaff 265SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_soft, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 266 0, VMMETEROFF(v_soft), vcnt, "IU", "Software interrupts");
12e4aaff 267SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vm_faults, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 268 0, VMMETEROFF(v_vm_faults), vcnt, "IU", "VM faults");
12e4aaff 269SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_cow_faults, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 270 0, VMMETEROFF(v_cow_faults), vcnt, "IU", "COW faults");
12e4aaff 271SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_cow_optim, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 272 0, VMMETEROFF(v_cow_optim), vcnt, "IU", "Optimized COW faults");
12e4aaff 273SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_zfod, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 274 0, VMMETEROFF(v_zfod), vcnt, "IU", "Zero fill");
12e4aaff 275SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_ozfod, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 276 0, VMMETEROFF(v_ozfod), vcnt, "IU", "Optimized zero fill");
12e4aaff 277SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_swapin, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 278 0, VMMETEROFF(v_swapin), vcnt, "IU", "Swapin operations");
12e4aaff 279SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_swapout, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 280 0, VMMETEROFF(v_swapout), vcnt, "IU", "Swapout operations");
12e4aaff 281SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_swappgsin, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 282 0, VMMETEROFF(v_swappgsin), vcnt, "IU", "Swapin pages");
12e4aaff 283SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_swappgsout, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 284 0, VMMETEROFF(v_swappgsout), vcnt, "IU", "Swapout pages");
12e4aaff 285SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vnodein, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 286 0, VMMETEROFF(v_vnodein), vcnt, "IU", "Vnodein operations");
12e4aaff 287SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vnodeout, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 288 0, VMMETEROFF(v_vnodeout), vcnt, "IU", "Vnodeout operations");
12e4aaff 289SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vnodepgsin, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 290 0, VMMETEROFF(v_vnodepgsin), vcnt, "IU", "Vnodein pages");
12e4aaff 291SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vnodepgsout, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 292 0, VMMETEROFF(v_vnodepgsout), vcnt, "IU", "Vnodeout pages");
12e4aaff 293SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_intrans, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 294 0, VMMETEROFF(v_intrans), vcnt, "IU", "In transit page blocking");
12e4aaff 295SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_reactivated, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 296 0, VMMETEROFF(v_reactivated), vcnt, "IU", "Reactivated pages");
12e4aaff 297SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_pdwakeups, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 298 0, VMMETEROFF(v_pdwakeups), vcnt, "IU", "Pagedaemon wakeups");
12e4aaff 299SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_pdpages, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 300 0, VMMETEROFF(v_pdpages), vcnt, "IU", "Pagedaemon page scans");
12e4aaff 301SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_dfree, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 302 0, VMMETEROFF(v_dfree), vcnt, "IU", "");
12e4aaff 303SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_pfree, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 304 0, VMMETEROFF(v_pfree), vcnt, "IU", "");
12e4aaff 305SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_tfree, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 306 0, VMMETEROFF(v_tfree), vcnt, "IU", "");
12e4aaff 307SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_forks, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 308 0, VMMETEROFF(v_forks), vcnt, "IU", "Number of fork() calls");
12e4aaff 309SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vforks, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 310 0, VMMETEROFF(v_vforks), vcnt, "IU", "Number of vfork() calls");
12e4aaff 311SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_rforks, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 312 0, VMMETEROFF(v_rforks), vcnt, "IU", "Number of rfork() calls");
12e4aaff 313SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_kthreads, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 314 0, VMMETEROFF(v_kthreads), vcnt, "IU", "Number of fork() calls by kernel");
12e4aaff 315SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_forkpages, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 316 0, VMMETEROFF(v_forkpages), vcnt, "IU", "VM pages affected by fork()");
12e4aaff 317SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vforkpages, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 318 0, VMMETEROFF(v_vforkpages), vcnt, "IU", "VM pages affected by vfork()");
12e4aaff 319SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_rforkpages, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 320 0, VMMETEROFF(v_rforkpages), vcnt, "IU", "VM pages affected by rfork()");
12e4aaff 321SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_kthreadpages, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 322 0, VMMETEROFF(v_kthreadpages), vcnt, "IU", "VM pages affected by fork() by kernel");
12e4aaff 323
984263bc 324SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 325 v_page_size, CTLFLAG_RD, &vmstats.v_page_size, 0, "");
984263bc 326SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 327 v_page_count, CTLFLAG_RD, &vmstats.v_page_count, 0, "");
984263bc 328SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 329 v_free_reserved, CTLFLAG_RD, &vmstats.v_free_reserved, 0, "");
984263bc 330SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 331 v_free_target, CTLFLAG_RD, &vmstats.v_free_target, 0, "");
984263bc 332SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 333 v_free_min, CTLFLAG_RD, &vmstats.v_free_min, 0, "");
984263bc 334SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 335 v_free_count, CTLFLAG_RD, &vmstats.v_free_count, 0, "");
984263bc 336SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 337 v_wire_count, CTLFLAG_RD, &vmstats.v_wire_count, 0, "");
984263bc 338SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 339 v_active_count, CTLFLAG_RD, &vmstats.v_active_count, 0, "");
984263bc 340SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 341 v_inactive_target, CTLFLAG_RD, &vmstats.v_inactive_target, 0, "");
984263bc 342SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 343 v_inactive_count, CTLFLAG_RD, &vmstats.v_inactive_count, 0, "");
984263bc 344SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 345 v_cache_count, CTLFLAG_RD, &vmstats.v_cache_count, 0, "");
984263bc 346SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 347 v_cache_min, CTLFLAG_RD, &vmstats.v_cache_min, 0, "");
984263bc 348SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 349 v_cache_max, CTLFLAG_RD, &vmstats.v_cache_max, 0, "");
984263bc 350SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 351 v_pageout_free_min, CTLFLAG_RD, &vmstats.v_pageout_free_min, 0, "");
984263bc 352SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 353 v_interrupt_free_min, CTLFLAG_RD, &vmstats.v_interrupt_free_min, 0, "");
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354SYSCTL_INT(_vm_stats_misc, OID_AUTO,
355 zero_page_count, CTLFLAG_RD, &vm_page_zero_count, 0, "");