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kernel - Fix vmtotal sysctl
[dragonfly.git] / sys / vm / vm_meter.c
CommitLineData
984263bc 1/*
99ad9bc4
MD		 2 * (MPSAFE)
3 *
984263bc
MD		 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. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by the University of
18 * California, Berkeley and its contributors.
19 * 4. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * @(#)vm_meter.c 8.4 (Berkeley) 1/4/94
36 * $FreeBSD: src/sys/vm/vm_meter.c,v 1.34.2.7 2002/10/10 19:28:22 dillon Exp $
75210f59 37 * $DragonFly: src/sys/vm/vm_meter.c,v 1.15 2008/04/28 18:04:08 dillon Exp $
984263bc
MD		 38 */
39
40#include <sys/param.h>
41#include <sys/proc.h>
42#include <sys/systm.h>
43#include <sys/kernel.h>
44#include <sys/resource.h>
45#include <sys/vmmeter.h>
46
47#include <vm/vm.h>
48#include <vm/vm_page.h>
49#include <vm/vm_extern.h>
50#include <vm/vm_param.h>
51#include <sys/lock.h>
52#include <vm/pmap.h>
53#include <vm/vm_map.h>
54#include <vm/vm_object.h>
55#include <sys/sysctl.h>
56
12e4aaff 57struct vmstats vmstats;
984263bc
MD		 58
59static int maxslp = MAXSLP;
60
61SYSCTL_UINT(_vm, VM_V_FREE_MIN, v_free_min,
12e4aaff 62 CTLFLAG_RW, &vmstats.v_free_min, 0, "");
984263bc 63SYSCTL_UINT(_vm, VM_V_FREE_TARGET, v_free_target,
12e4aaff 64 CTLFLAG_RW, &vmstats.v_free_target, 0, "");
984263bc 65SYSCTL_UINT(_vm, VM_V_FREE_RESERVED, v_free_reserved,
12e4aaff 66 CTLFLAG_RW, &vmstats.v_free_reserved, 0, "");
984263bc 67SYSCTL_UINT(_vm, VM_V_INACTIVE_TARGET, v_inactive_target,
12e4aaff 68 CTLFLAG_RW, &vmstats.v_inactive_target, 0, "");
984263bc 69SYSCTL_UINT(_vm, VM_V_CACHE_MIN, v_cache_min,
12e4aaff 70 CTLFLAG_RW, &vmstats.v_cache_min, 0, "");
984263bc 71SYSCTL_UINT(_vm, VM_V_CACHE_MAX, v_cache_max,
12e4aaff 72 CTLFLAG_RW, &vmstats.v_cache_max, 0, "");
984263bc 73SYSCTL_UINT(_vm, VM_V_PAGEOUT_FREE_MIN, v_pageout_free_min,
12e4aaff 74 CTLFLAG_RW, &vmstats.v_pageout_free_min, 0, "");
984263bc 75SYSCTL_UINT(_vm, OID_AUTO, v_free_severe,
12e4aaff 76 CTLFLAG_RW, &vmstats.v_free_severe, 0, "");
984263bc
MD		 77
78SYSCTL_STRUCT(_vm, VM_LOADAVG, loadavg, CTLFLAG_RD,
79 &averunnable, loadavg, "Machine loadaverage history");
80
8fa76237
MD		 81static int do_vmtotal_callback(struct proc *p, void *data);
82
99ad9bc4
MD		 83/*
84 * No requirements.
85 */
984263bc 86static int
6bdb32ed 87do_vmtotal(SYSCTL_HANDLER_ARGS)
984263bc 88{
8fa76237
MD		 89 struct vmtotal total;
90 struct vmtotal *totalp;
984263bc 91 vm_object_t object;
984263bc 92
2de4f77e 93 bzero(&total, sizeof(total));
984263bc 94 totalp = &total;
8fa76237 95
984263bc
MD		 96 /*
97 * Mark all objects as inactive.
98 */
2de4f77e 99 lwkt_gettoken(&vmobj_token);
984263bc
MD		 100 for (object = TAILQ_FIRST(&vm_object_list);
101 object != NULL;
8fa76237 102 object = TAILQ_NEXT(object,object_list)) {
00a3fdca
MD		 103 if (object->type == OBJT_MARKER)
104 continue;
984263bc 105 vm_object_clear_flag(object, OBJ_ACTIVE);
8fa76237 106 }
2de4f77e 107 lwkt_reltoken(&vmobj_token);
8fa76237 108
984263bc
MD		 109 /*
110 * Calculate process statistics.
111 */
8fa76237 112 allproc_scan(do_vmtotal_callback, totalp);
984263bc 113
984263bc
MD		 114 /*
115 * Calculate object memory usage statistics.
116 */
2de4f77e 117 lwkt_gettoken(&vmobj_token);
984263bc
MD		 118 for (object = TAILQ_FIRST(&vm_object_list);
119 object != NULL;
120 object = TAILQ_NEXT(object, object_list)) {
121 /*
00a3fdca
MD		 122 * devices, like /dev/mem, will badly skew our totals.
123 * markers aren't real objects.
984263bc 124 */
00a3fdca
MD		 125 if (object->type == OBJT_MARKER)
126 continue;
984263bc
MD		 127 if (object->type == OBJT_DEVICE)
128 continue;
7b5a2bb5
MD		 129 if (object->size >= 0x7FFFFFFF) {
130 /*
131 * Probably unbounded anonymous memory (really
132 * bounded by related vm_map_entry structures which
133 * we do not have access to in this loop).
134 */
135 totalp->t_vm += object->resident_page_count;
136 } else {
137 /*
138 * It's questionable how useful this is but...
139 */
140 totalp->t_vm += object->size;
141 }
984263bc
MD		 142 totalp->t_rm += object->resident_page_count;
143 if (object->flags & OBJ_ACTIVE) {
144 totalp->t_avm += object->size;
145 totalp->t_arm += object->resident_page_count;
146 }
147 if (object->shadow_count > 1) {
148 /* shared object */
149 totalp->t_vmshr += object->size;
150 totalp->t_rmshr += object->resident_page_count;
151 if (object->flags & OBJ_ACTIVE) {
152 totalp->t_avmshr += object->size;
153 totalp->t_armshr += object->resident_page_count;
154 }
155 }
156 }
2de4f77e 157 lwkt_reltoken(&vmobj_token);
12e4aaff 158 totalp->t_free = vmstats.v_free_count + vmstats.v_cache_count;
2de4f77e 159
984263bc
MD		 160 return (sysctl_handle_opaque(oidp, totalp, sizeof total, req));
161}
162
99ad9bc4
MD		 163/*
164 * The caller must hold proc_token.
165 */
6bdb32ed 166static int
8fa76237
MD		 167do_vmtotal_callback(struct proc *p, void *data)
168{
169 struct vmtotal *totalp = data;
08f2f1bb 170 struct lwp *lp;
8fa76237
MD		 171 vm_map_entry_t entry;
172 vm_map_t map;
173 int paging;
174
175 if (p->p_flag & P_SYSTEM)
176 return(0);
177
c7e98b2f
SS		 178 FOREACH_LWP_IN_PROC(lp, p) {
179 switch (lp->lwp_stat) {
180 case LSSTOP:
181 case LSSLEEP:
182 if ((p->p_flag & P_SWAPPEDOUT) == 0) {
183 if ((lp->lwp_flag & LWP_SINTR) == 0)
184 totalp->t_dw++;
185 else if (lp->lwp_slptime < maxslp)
186 totalp->t_sl++;
187 } else if (lp->lwp_slptime < maxslp) {
188 totalp->t_sw++;
189 }
190 if (lp->lwp_slptime >= maxslp)
191 return(0);
192 break;
193
194 case LSRUN:
195 if (p->p_flag & P_SWAPPEDOUT)
196 totalp->t_sw++;
197 else
198 totalp->t_rq++;
199 if (p->p_stat == SIDL)
200 return(0);
201 break;
202
203 default:
204 return (0);
8fa76237 205 }
8fa76237 206 }
99ad9bc4 207
8fa76237
MD		 208 /*
209 * Note active objects.
210 */
211 paging = 0;
99ad9bc4 212 lwkt_gettoken(&vm_token);
75210f59 213 if (p->p_vmspace) {
99ad9bc4
MD		 214 map = &p->p_vmspace->vm_map;
215 vm_map_lock_read(map);
216 for (entry = map->header.next;
217 entry != &map->header; entry = entry->next) {
75210f59
MD		 218 if (entry->maptype != VM_MAPTYPE_NORMAL &&
219 entry->maptype != VM_MAPTYPE_VPAGETABLE) {
220 continue;
221 }
222 if (entry->object.vm_object == NULL)
223 continue;
224 vm_object_set_flag(entry->object.vm_object, OBJ_ACTIVE);
225 paging |= entry->object.vm_object->paging_in_progress;
1b874851 226 }
99ad9bc4 227 vm_map_unlock_read(map);
8fa76237 228 }
99ad9bc4 229 lwkt_reltoken(&vm_token);
8fa76237
MD		 230 if (paging)
231 totalp->t_pw++;
232 return(0);
233}
234
99ad9bc4
MD		 235/*
236 * No requirements.
237 */
8fa76237 238static int
6bdb32ed
MD		 239do_vmstats(SYSCTL_HANDLER_ARGS)
240{
241 struct vmstats vms = vmstats;
242 return (sysctl_handle_opaque(oidp, &vms, sizeof(vms), req));
243}
244
99ad9bc4
MD		 245/*
246 * No requirements.
247 */
6bdb32ed
MD		 248static int
249do_vmmeter(SYSCTL_HANDLER_ARGS)
250{
251 int boffset = offsetof(struct vmmeter, vmmeter_uint_begin);
252 int eoffset = offsetof(struct vmmeter, vmmeter_uint_end);
253 struct vmmeter vmm;
254 int i;
255
256 bzero(&vmm, sizeof(vmm));
257 for (i = 0; i < ncpus; ++i) {
258 int off;
259 struct globaldata *gd = globaldata_find(i);
260
261 for (off = boffset; off <= eoffset; off += sizeof(u_int)) {
262 *(u_int *)((char *)&vmm + off) +=
263 *(u_int *)((char *)&gd->gd_cnt + off);
264 }
265
266 }
b785701b 267 vmm.v_intr += vmm.v_ipi + vmm.v_timer;
6bdb32ed
MD		 268 return (sysctl_handle_opaque(oidp, &vmm, sizeof(vmm), req));
269}
270
12e4aaff
MD		 271/*
272 * vcnt() - accumulate statistics from the cnt structure for each cpu
273 *
274 * The vmmeter structure is now per-cpu as well as global. Those
275 * statistics which can be kept on a per-cpu basis (to avoid cache
276 * stalls between cpus) can be moved to the per-cpu vmmeter. Remaining
277 * statistics, such as v_free_reserved, are left in the global
278 * structure.
279 *
280 * (sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req)
99ad9bc4
MD		 281 *
282 * No requirements.
12e4aaff
MD		 283 */
284static int
285vcnt(SYSCTL_HANDLER_ARGS)
286{
287 int i;
288 int count = 0;
6bdb32ed 289 int offset = arg2;
12e4aaff
MD		 290
291 for (i = 0; i < ncpus; ++i) {
292 struct globaldata *gd = globaldata_find(i);
293 count += *(int *)((char *)&gd->gd_cnt + offset);
294 }
295 return(SYSCTL_OUT(req, &count, sizeof(int)));
296}
297
99ad9bc4
MD		 298/*
299 * No requirements.
300 */
b785701b
SZ		 301static int
302vcnt_intr(SYSCTL_HANDLER_ARGS)
303{
304 int i;
305 int count = 0;
306
307 for (i = 0; i < ncpus; ++i) {
308 struct globaldata *gd = globaldata_find(i);
309
310 count += gd->gd_cnt.v_intr + gd->gd_cnt.v_ipi +
311 gd->gd_cnt.v_timer;
312 }
313 return(SYSCTL_OUT(req, &count, sizeof(int)));
314}
315
6bdb32ed 316#define VMMETEROFF(var) offsetof(struct vmmeter, var)
12e4aaff 317
6bdb32ed
MD		 318SYSCTL_PROC(_vm, OID_AUTO, vmtotal, CTLTYPE_OPAQUE|CTLFLAG_RD,
319 0, sizeof(struct vmtotal), do_vmtotal, "S,vmtotal",
320 "System virtual memory aggregate");
321SYSCTL_PROC(_vm, OID_AUTO, vmstats, CTLTYPE_OPAQUE|CTLFLAG_RD,
322 0, sizeof(struct vmstats), do_vmstats, "S,vmstats",
984263bc 323 "System virtual memory statistics");
6bdb32ed
MD		 324SYSCTL_PROC(_vm, OID_AUTO, vmmeter, CTLTYPE_OPAQUE|CTLFLAG_RD,
325 0, sizeof(struct vmmeter), do_vmmeter, "S,vmmeter",
b785701b 326 "System statistics");
984263bc
MD		 327SYSCTL_NODE(_vm, OID_AUTO, stats, CTLFLAG_RW, 0, "VM meter stats");
328SYSCTL_NODE(_vm_stats, OID_AUTO, sys, CTLFLAG_RW, 0, "VM meter sys stats");
329SYSCTL_NODE(_vm_stats, OID_AUTO, vm, CTLFLAG_RW, 0, "VM meter vm stats");
330SYSCTL_NODE(_vm_stats, OID_AUTO, misc, CTLFLAG_RW, 0, "VM meter misc stats");
12e4aaff
MD		 331
332SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_swtch, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed
MD		 333 0, VMMETEROFF(v_swtch), vcnt, "IU", "Context switches");
334SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_intrans_coll, CTLTYPE_UINT|CTLFLAG_RD,
335 0, VMMETEROFF(v_intrans_coll), vcnt, "IU", "");
336SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_intrans_wait, CTLTYPE_UINT|CTLFLAG_RD,
337 0, VMMETEROFF(v_intrans_wait), vcnt, "IU", "");
545a1cd3
MD		 338SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_forwarded_ints, CTLTYPE_UINT|CTLFLAG_RD,
339 0, VMMETEROFF(v_forwarded_ints), vcnt, "IU", "");
340SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_forwarded_hits, CTLTYPE_UINT|CTLFLAG_RD,
341 0, VMMETEROFF(v_forwarded_hits), vcnt, "IU", "");
342SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_forwarded_misses, CTLTYPE_UINT|CTLFLAG_RD,
343 0, VMMETEROFF(v_forwarded_misses), vcnt, "IU", "");
12e4aaff 344SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_trap, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 345 0, VMMETEROFF(v_trap), vcnt, "IU", "Traps");
12e4aaff 346SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_syscall, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 347 0, VMMETEROFF(v_syscall), vcnt, "IU", "Syscalls");
12e4aaff 348SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_intr, CTLTYPE_UINT|CTLFLAG_RD,
b785701b
SZ		 349 0, VMMETEROFF(v_intr), vcnt_intr, "IU", "Hardware interrupts");
350SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_ipi, CTLTYPE_UINT|CTLFLAG_RD,
351 0, VMMETEROFF(v_ipi), vcnt, "IU", "Inter-processor interrupts");
352SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_timer, CTLTYPE_UINT|CTLFLAG_RD,
353 0, VMMETEROFF(v_timer), vcnt, "IU", "LAPIC timer interrupts");
12e4aaff 354SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_soft, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 355 0, VMMETEROFF(v_soft), vcnt, "IU", "Software interrupts");
12e4aaff 356SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vm_faults, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 357 0, VMMETEROFF(v_vm_faults), vcnt, "IU", "VM faults");
12e4aaff 358SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_cow_faults, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 359 0, VMMETEROFF(v_cow_faults), vcnt, "IU", "COW faults");
12e4aaff 360SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_cow_optim, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 361 0, VMMETEROFF(v_cow_optim), vcnt, "IU", "Optimized COW faults");
12e4aaff 362SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_zfod, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 363 0, VMMETEROFF(v_zfod), vcnt, "IU", "Zero fill");
12e4aaff 364SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_ozfod, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 365 0, VMMETEROFF(v_ozfod), vcnt, "IU", "Optimized zero fill");
12e4aaff 366SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_swapin, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 367 0, VMMETEROFF(v_swapin), vcnt, "IU", "Swapin operations");
12e4aaff 368SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_swapout, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 369 0, VMMETEROFF(v_swapout), vcnt, "IU", "Swapout operations");
12e4aaff 370SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_swappgsin, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 371 0, VMMETEROFF(v_swappgsin), vcnt, "IU", "Swapin pages");
12e4aaff 372SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_swappgsout, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 373 0, VMMETEROFF(v_swappgsout), vcnt, "IU", "Swapout pages");
12e4aaff 374SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vnodein, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 375 0, VMMETEROFF(v_vnodein), vcnt, "IU", "Vnodein operations");
12e4aaff 376SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vnodeout, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 377 0, VMMETEROFF(v_vnodeout), vcnt, "IU", "Vnodeout operations");
12e4aaff 378SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vnodepgsin, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 379 0, VMMETEROFF(v_vnodepgsin), vcnt, "IU", "Vnodein pages");
12e4aaff 380SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vnodepgsout, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 381 0, VMMETEROFF(v_vnodepgsout), vcnt, "IU", "Vnodeout pages");
12e4aaff 382SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_intrans, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 383 0, VMMETEROFF(v_intrans), vcnt, "IU", "In transit page blocking");
12e4aaff 384SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_reactivated, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 385 0, VMMETEROFF(v_reactivated), vcnt, "IU", "Reactivated pages");
12e4aaff 386SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_pdwakeups, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 387 0, VMMETEROFF(v_pdwakeups), vcnt, "IU", "Pagedaemon wakeups");
12e4aaff 388SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_pdpages, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 389 0, VMMETEROFF(v_pdpages), vcnt, "IU", "Pagedaemon page scans");
12e4aaff 390SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_dfree, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 391 0, VMMETEROFF(v_dfree), vcnt, "IU", "");
12e4aaff 392SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_pfree, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 393 0, VMMETEROFF(v_pfree), vcnt, "IU", "");
12e4aaff 394SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_tfree, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 395 0, VMMETEROFF(v_tfree), vcnt, "IU", "");
12e4aaff 396SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_forks, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 397 0, VMMETEROFF(v_forks), vcnt, "IU", "Number of fork() calls");
12e4aaff 398SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vforks, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 399 0, VMMETEROFF(v_vforks), vcnt, "IU", "Number of vfork() calls");
12e4aaff 400SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_rforks, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 401 0, VMMETEROFF(v_rforks), vcnt, "IU", "Number of rfork() calls");
12e4aaff 402SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_kthreads, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 403 0, VMMETEROFF(v_kthreads), vcnt, "IU", "Number of fork() calls by kernel");
12e4aaff 404SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_forkpages, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 405 0, VMMETEROFF(v_forkpages), vcnt, "IU", "VM pages affected by fork()");
12e4aaff 406SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vforkpages, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 407 0, VMMETEROFF(v_vforkpages), vcnt, "IU", "VM pages affected by vfork()");
12e4aaff 408SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_rforkpages, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 409 0, VMMETEROFF(v_rforkpages), vcnt, "IU", "VM pages affected by rfork()");
12e4aaff 410SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_kthreadpages, CTLTYPE_UINT|CTLFLAG_RD,
6bdb32ed 411 0, VMMETEROFF(v_kthreadpages), vcnt, "IU", "VM pages affected by fork() by kernel");
12e4aaff 412
984263bc 413SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 414 v_page_size, CTLFLAG_RD, &vmstats.v_page_size, 0, "");
984263bc 415SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 416 v_page_count, CTLFLAG_RD, &vmstats.v_page_count, 0, "");
984263bc 417SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 418 v_free_reserved, CTLFLAG_RD, &vmstats.v_free_reserved, 0, "");
984263bc 419SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 420 v_free_target, CTLFLAG_RD, &vmstats.v_free_target, 0, "");
984263bc 421SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 422 v_free_min, CTLFLAG_RD, &vmstats.v_free_min, 0, "");
984263bc 423SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 424 v_free_count, CTLFLAG_RD, &vmstats.v_free_count, 0, "");
984263bc 425SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 426 v_wire_count, CTLFLAG_RD, &vmstats.v_wire_count, 0, "");
984263bc 427SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 428 v_active_count, CTLFLAG_RD, &vmstats.v_active_count, 0, "");
984263bc 429SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 430 v_inactive_target, CTLFLAG_RD, &vmstats.v_inactive_target, 0, "");
984263bc 431SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 432 v_inactive_count, CTLFLAG_RD, &vmstats.v_inactive_count, 0, "");
984263bc 433SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 434 v_cache_count, CTLFLAG_RD, &vmstats.v_cache_count, 0, "");
984263bc 435SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 436 v_cache_min, CTLFLAG_RD, &vmstats.v_cache_min, 0, "");
984263bc 437SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 438 v_cache_max, CTLFLAG_RD, &vmstats.v_cache_max, 0, "");
984263bc 439SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 440 v_pageout_free_min, CTLFLAG_RD, &vmstats.v_pageout_free_min, 0, "");
984263bc 441SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
12e4aaff 442 v_interrupt_free_min, CTLFLAG_RD, &vmstats.v_interrupt_free_min, 0, "");
984263bc
MD		 443SYSCTL_INT(_vm_stats_misc, OID_AUTO,
444 zero_page_count, CTLFLAG_RD, &vm_page_zero_count, 0, "");
015ffe3f 445
99ad9bc4
MD		 446/*
447 * No requirements.
448 */
015ffe3f
SZ		 449static int
450do_vmmeter_pcpu(SYSCTL_HANDLER_ARGS)
451{
452 int boffset = offsetof(struct vmmeter, vmmeter_uint_begin);
453 int eoffset = offsetof(struct vmmeter, vmmeter_uint_end);
454 struct globaldata *gd = arg1;
455 struct vmmeter vmm;
456 int off;
457
458 bzero(&vmm, sizeof(vmm));
459 for (off = boffset; off <= eoffset; off += sizeof(u_int)) {
460 *(u_int *)((char *)&vmm + off) +=
461 *(u_int *)((char *)&gd->gd_cnt + off);
462 }
463 vmm.v_intr += vmm.v_ipi + vmm.v_timer;
464 return (sysctl_handle_opaque(oidp, &vmm, sizeof(vmm), req));
465}
466
99ad9bc4
MD		 467/*
468 * Called from the low level boot code only.
469 */
015ffe3f
SZ		 470static void
471vmmeter_init(void *dummy __unused)
472{
473 int i;
474
475 for (i = 0; i < ncpus; ++i) {
476 struct sysctl_ctx_list *ctx;
477 struct sysctl_oid *oid;
478 struct globaldata *gd;
479 char name[32];
480
481 ksnprintf(name, sizeof(name), "cpu%d", i);
482
483 ctx = kmalloc(sizeof(*ctx), M_TEMP, M_WAITOK);
12db4c33 484 sysctl_ctx_init(ctx);
015ffe3f
SZ		 485 oid = SYSCTL_ADD_NODE(ctx, SYSCTL_STATIC_CHILDREN(_vm),
486 OID_AUTO, name, CTLFLAG_RD, 0, "");
487
488 gd = globaldata_find(i);
489 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
490 "vmmeter", CTLTYPE_OPAQUE|CTLFLAG_RD,
491 gd, sizeof(struct vmmeter), do_vmmeter_pcpu,
492 "S,vmmeter", "System per-cpu statistics");
493 }
494}
495SYSINIT(vmmeter, SI_SUB_PSEUDO, SI_ORDER_ANY, vmmeter_init, 0);
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