vm_meter.c revision 108585
11541Srgrimes/* 21541Srgrimes * Copyright (c) 1982, 1986, 1989, 1993 31541Srgrimes * The Regents of the University of California. All rights reserved. 41541Srgrimes * 51541Srgrimes * Redistribution and use in source and binary forms, with or without 61541Srgrimes * modification, are permitted provided that the following conditions 71541Srgrimes * are met: 81541Srgrimes * 1. Redistributions of source code must retain the above copyright 91541Srgrimes * notice, this list of conditions and the following disclaimer. 101541Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111541Srgrimes * notice, this list of conditions and the following disclaimer in the 121541Srgrimes * documentation and/or other materials provided with the distribution. 131541Srgrimes * 3. All advertising materials mentioning features or use of this software 1458705Scharnier * must display the following acknowledgement: 151541Srgrimes * This product includes software developed by the University of 161541Srgrimes * California, Berkeley and its contributors. 171541Srgrimes * 4. Neither the name of the University nor the names of its contributors 181541Srgrimes * may be used to endorse or promote products derived from this software 191541Srgrimes * without specific prior written permission. 201541Srgrimes * 211541Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221541Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231541Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241541Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251541Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261541Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271541Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281541Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291541Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301541Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311541Srgrimes * SUCH DAMAGE. 321541Srgrimes * 331541Srgrimes * @(#)vm_meter.c 8.4 (Berkeley) 1/4/94 3450477Speter * $FreeBSD: head/sys/vm/vm_meter.c 108585 2003-01-03 05:52:02Z alc $ 351541Srgrimes */ 361541Srgrimes 371541Srgrimes#include <sys/param.h> 381541Srgrimes#include <sys/systm.h> 391541Srgrimes#include <sys/kernel.h> 4076166Smarkm#include <sys/lock.h> 4176166Smarkm#include <sys/mutex.h> 4276166Smarkm#include <sys/proc.h> 4334924Sbde#include <sys/resource.h> 4474927Sjhb#include <sys/sx.h> 4512662Sdg#include <sys/vmmeter.h> 4693823Sdillon#include <sys/smp.h> 4712662Sdg 481541Srgrimes#include <vm/vm.h> 4940794Speter#include <vm/vm_page.h> 5012726Sbde#include <vm/vm_extern.h> 5112662Sdg#include <vm/vm_param.h> 5212662Sdg#include <vm/pmap.h> 5312662Sdg#include <vm/vm_map.h> 5412662Sdg#include <vm/vm_object.h> 551541Srgrimes#include <sys/sysctl.h> 561541Srgrimes 579759Sbdestruct vmmeter cnt; 581541Srgrimes 5976778Sjhbint maxslp = MAXSLP; 601541Srgrimes 6162622SjhbSYSCTL_UINT(_vm, VM_V_FREE_MIN, v_free_min, 6212286Sphk CTLFLAG_RW, &cnt.v_free_min, 0, ""); 6362622SjhbSYSCTL_UINT(_vm, VM_V_FREE_TARGET, v_free_target, 6412286Sphk CTLFLAG_RW, &cnt.v_free_target, 0, ""); 6562622SjhbSYSCTL_UINT(_vm, VM_V_FREE_RESERVED, v_free_reserved, 6612286Sphk CTLFLAG_RW, &cnt.v_free_reserved, 0, ""); 6762622SjhbSYSCTL_UINT(_vm, VM_V_INACTIVE_TARGET, v_inactive_target, 6812286Sphk CTLFLAG_RW, &cnt.v_inactive_target, 0, ""); 6962622SjhbSYSCTL_UINT(_vm, VM_V_CACHE_MIN, v_cache_min, 7012286Sphk CTLFLAG_RW, &cnt.v_cache_min, 0, ""); 7162622SjhbSYSCTL_UINT(_vm, VM_V_CACHE_MAX, v_cache_max, 7212286Sphk CTLFLAG_RW, &cnt.v_cache_max, 0, ""); 7362622SjhbSYSCTL_UINT(_vm, VM_V_PAGEOUT_FREE_MIN, v_pageout_free_min, 7412286Sphk CTLFLAG_RW, &cnt.v_pageout_free_min, 0, ""); 7562622SjhbSYSCTL_UINT(_vm, OID_AUTO, v_free_severe, 7651337Sdillon CTLFLAG_RW, &cnt.v_free_severe, 0, ""); 7712286Sphk 7846381SbillfSYSCTL_STRUCT(_vm, VM_LOADAVG, loadavg, CTLFLAG_RD, 7946381Sbillf &averunnable, loadavg, "Machine loadaverage history"); 801541Srgrimes 8112286Sphkstatic int 8262573Sphkvmtotal(SYSCTL_HANDLER_ARGS) 831541Srgrimes{ 8499072Sjulian/* XXXKSE almost completely broken */ 8512286Sphk struct proc *p; 8612286Sphk struct vmtotal total, *totalp; 8712286Sphk vm_map_entry_t entry; 8812286Sphk vm_object_t object; 8912286Sphk vm_map_t map; 901541Srgrimes int paging; 9199072Sjulian struct thread *td; 921541Srgrimes 9312286Sphk totalp = &total; 941541Srgrimes bzero(totalp, sizeof *totalp); 951541Srgrimes /* 961541Srgrimes * Mark all objects as inactive. 971541Srgrimes */ 9879224Sdillon GIANT_REQUIRED; 9995112Salc mtx_lock(&vm_object_list_mtx); 100108551Salc TAILQ_FOREACH(object, &vm_object_list, object_list) { 101108551Salc vm_object_lock(object); 10238517Sdfr vm_object_clear_flag(object, OBJ_ACTIVE); 103108551Salc vm_object_unlock(object); 104108551Salc } 10595112Salc mtx_unlock(&vm_object_list_mtx); 1061541Srgrimes /* 1071541Srgrimes * Calculate process statistics. 1081541Srgrimes */ 10974927Sjhb sx_slock(&allproc_lock); 11083366Sjulian FOREACH_PROC_IN_SYSTEM(p) { 1111541Srgrimes if (p->p_flag & P_SYSTEM) 1121541Srgrimes continue; 11372200Sbmilekic mtx_lock_spin(&sched_lock); 11499072Sjulian switch (p->p_state) { 11599072Sjulian case PRS_NEW: 11672200Sbmilekic mtx_unlock_spin(&sched_lock); 1171541Srgrimes continue; 1181541Srgrimes break; 11999072Sjulian default: 12099072Sjulian FOREACH_THREAD_IN_PROC(p, td) { 121103216Sjulian /* Need new statistics XXX */ 12299072Sjulian switch (td->td_state) { 123103216Sjulian case TDS_INHIBITED: 124104387Sjhb if (TD_ON_LOCK(td) || 125103216Sjulian (td->td_inhibitors == 126103216Sjulian TDI_SWAPPED)) { 127103216Sjulian totalp->t_sw++; 128103216Sjulian } else if (TD_IS_SLEEPING(td) || 129103216Sjulian TD_AWAITING_INTR(td) || 130103216Sjulian TD_IS_SUSPENDED(td)) { 13199072Sjulian if (td->td_priority <= PZERO) 13299072Sjulian totalp->t_dw++; 133103216Sjulian else 13499072Sjulian totalp->t_sl++; 13599072Sjulian } 13699072Sjulian break; 1371541Srgrimes 138103216Sjulian case TDS_CAN_RUN: 139103216Sjulian totalp->t_sw++; 140103216Sjulian break; 14199072Sjulian case TDS_RUNQ: 14299072Sjulian case TDS_RUNNING: 143103216Sjulian totalp->t_rq++; 14499072Sjulian continue; 14599072Sjulian default: 14699072Sjulian break; 14799072Sjulian } 14871572Sjhb } 1491541Srgrimes } 15072200Sbmilekic mtx_unlock_spin(&sched_lock); 1511541Srgrimes /* 1521541Srgrimes * Note active objects. 1531541Srgrimes */ 1541541Srgrimes paging = 0; 155108585Salc map = &p->p_vmspace->vm_map; 156108585Salc vm_map_lock_read(map); 157108585Salc for (entry = map->header.next; 1585455Sdg entry != &map->header; entry = entry->next) { 15943748Sdillon if ((entry->eflags & MAP_ENTRY_IS_SUB_MAP) || 160108585Salc (object = entry->object.vm_object) == NULL) 1611541Srgrimes continue; 162108585Salc vm_object_lock(object); 163108585Salc vm_object_set_flag(object, OBJ_ACTIVE); 164108585Salc paging |= object->paging_in_progress; 165108585Salc vm_object_unlock(object); 1661541Srgrimes } 167108585Salc vm_map_unlock_read(map); 1681541Srgrimes if (paging) 1691541Srgrimes totalp->t_pw++; 1701541Srgrimes } 17174927Sjhb sx_sunlock(&allproc_lock); 1721541Srgrimes /* 1731541Srgrimes * Calculate object memory usage statistics. 1741541Srgrimes */ 17595112Salc mtx_lock(&vm_object_list_mtx); 17675523Salfred TAILQ_FOREACH(object, &vm_object_list, object_list) { 177108585Salc vm_object_lock(object); 17842957Sdillon /* 17942957Sdillon * devices, like /dev/mem, will badly skew our totals 18042957Sdillon */ 181108585Salc if (object->type == OBJT_DEVICE) { 182108585Salc vm_object_unlock(object); 18342957Sdillon continue; 184108585Salc } 18518169Sdyson totalp->t_vm += object->size; 1861541Srgrimes totalp->t_rm += object->resident_page_count; 1871541Srgrimes if (object->flags & OBJ_ACTIVE) { 18818169Sdyson totalp->t_avm += object->size; 1891541Srgrimes totalp->t_arm += object->resident_page_count; 1901541Srgrimes } 19118169Sdyson if (object->shadow_count > 1) { 1921541Srgrimes /* shared object */ 19318169Sdyson totalp->t_vmshr += object->size; 1941541Srgrimes totalp->t_rmshr += object->resident_page_count; 1951541Srgrimes if (object->flags & OBJ_ACTIVE) { 19618169Sdyson totalp->t_avmshr += object->size; 1971541Srgrimes totalp->t_armshr += object->resident_page_count; 1981541Srgrimes } 1991541Srgrimes } 200108585Salc vm_object_unlock(object); 2011541Srgrimes } 20295112Salc mtx_unlock(&vm_object_list_mtx); 2035455Sdg totalp->t_free = cnt.v_free_count + cnt.v_cache_count; 20412286Sphk return (sysctl_handle_opaque(oidp, totalp, sizeof total, req)); 2051541Srgrimes} 20612286Sphk 20793823Sdillon/* 20893823Sdillon * vcnt() - accumulate statistics from all cpus and the global cnt 20993823Sdillon * structure. 21093823Sdillon * 21193823Sdillon * The vmmeter structure is now per-cpu as well as global. Those 21293823Sdillon * statistics which can be kept on a per-cpu basis (to avoid cache 21393823Sdillon * stalls between cpus) can be moved to the per-cpu vmmeter. Remaining 21493823Sdillon * statistics, such as v_free_reserved, are left in the global 21593823Sdillon * structure. 21693823Sdillon * 21793823Sdillon * (sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req) 21893823Sdillon */ 21993823Sdillonstatic int 22093823Sdillonvcnt(SYSCTL_HANDLER_ARGS) 22193823Sdillon{ 22293823Sdillon int error = 0; 22393823Sdillon int count = *(int *)arg1; 22493823Sdillon#ifdef SMP 22593823Sdillon int i; 22693823Sdillon int offset = (char *)arg1 - (char *)&cnt; 22793823Sdillon 22893823Sdillon for (i = 0; i < mp_ncpus; ++i) { 22993823Sdillon struct pcpu *pcpu = pcpu_find(i); 23093823Sdillon count += *(int *)((char *)&pcpu->pc_cnt + offset); 23193823Sdillon } 232108171Sdillon#else 233108171Sdillon int offset = (char *)arg1 - (char *)&cnt; 234108171Sdillon count += *(int *)((char *)PCPU_PTR(cnt) + offset); 23593823Sdillon#endif 23693823Sdillon error = SYSCTL_OUT(req, &count, sizeof(int)); 23793823Sdillon return(error); 23893823Sdillon} 23993823Sdillon 24012286SphkSYSCTL_PROC(_vm, VM_METER, vmmeter, CTLTYPE_OPAQUE|CTLFLAG_RD, 24146381Sbillf 0, sizeof(struct vmtotal), vmtotal, "S,vmtotal", 24246381Sbillf "System virtual memory statistics"); 24340794SpeterSYSCTL_NODE(_vm, OID_AUTO, stats, CTLFLAG_RW, 0, "VM meter stats"); 24440794SpeterSYSCTL_NODE(_vm_stats, OID_AUTO, sys, CTLFLAG_RW, 0, "VM meter sys stats"); 24540794SpeterSYSCTL_NODE(_vm_stats, OID_AUTO, vm, CTLFLAG_RW, 0, "VM meter vm stats"); 24640794SpeterSYSCTL_NODE(_vm_stats, OID_AUTO, misc, CTLFLAG_RW, 0, "VM meter misc stats"); 24793823Sdillon 24893823SdillonSYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_swtch, CTLTYPE_UINT|CTLFLAG_RD, 24993823Sdillon &cnt.v_swtch, 0, vcnt, "IU", "Context switches"); 25093823SdillonSYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_trap, CTLTYPE_UINT|CTLFLAG_RD, 25193823Sdillon &cnt.v_trap, 0, vcnt, "IU", "Traps"); 25293823SdillonSYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_syscall, CTLTYPE_UINT|CTLFLAG_RD, 25393823Sdillon &cnt.v_syscall, 0, vcnt, "IU", "Syscalls"); 25493823SdillonSYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_intr, CTLTYPE_UINT|CTLFLAG_RD, 25593823Sdillon &cnt.v_intr, 0, vcnt, "IU", "Hardware interrupts"); 25693823SdillonSYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_soft, CTLTYPE_UINT|CTLFLAG_RD, 25793823Sdillon &cnt.v_soft, 0, vcnt, "IU", "Software interrupts"); 25893823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vm_faults, CTLTYPE_UINT|CTLFLAG_RD, 25993823Sdillon &cnt.v_vm_faults, 0, vcnt, "IU", "VM faults"); 26093823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_cow_faults, CTLTYPE_UINT|CTLFLAG_RD, 26193823Sdillon &cnt.v_cow_faults, 0, vcnt, "IU", "COW faults"); 26293823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_cow_optim, CTLTYPE_UINT|CTLFLAG_RD, 26393823Sdillon &cnt.v_cow_optim, 0, vcnt, "IU", "Optimized COW faults"); 26493823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_zfod, CTLTYPE_UINT|CTLFLAG_RD, 26593823Sdillon &cnt.v_zfod, 0, vcnt, "IU", "Zero fill"); 26693823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_ozfod, CTLTYPE_UINT|CTLFLAG_RD, 26793823Sdillon &cnt.v_ozfod, 0, vcnt, "IU", "Optimized zero fill"); 26893823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_swapin, CTLTYPE_UINT|CTLFLAG_RD, 26993823Sdillon &cnt.v_swapin, 0, vcnt, "IU", "Swapin operations"); 27093823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_swapout, CTLTYPE_UINT|CTLFLAG_RD, 27193823Sdillon &cnt.v_swapout, 0, vcnt, "IU", "Swapout operations"); 27293823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_swappgsin, CTLTYPE_UINT|CTLFLAG_RD, 27393823Sdillon &cnt.v_swappgsin, 0, vcnt, "IU", "Swapin pages"); 27493823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_swappgsout, CTLTYPE_UINT|CTLFLAG_RD, 27593823Sdillon &cnt.v_swappgsout, 0, vcnt, "IU", "Swapout pages"); 27693823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vnodein, CTLTYPE_UINT|CTLFLAG_RD, 27793823Sdillon &cnt.v_vnodein, 0, vcnt, "IU", "Vnodein operations"); 27893823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vnodeout, CTLTYPE_UINT|CTLFLAG_RD, 27993823Sdillon &cnt.v_vnodeout, 0, vcnt, "IU", "Vnodeout operations"); 28093823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vnodepgsin, CTLTYPE_UINT|CTLFLAG_RD, 28193823Sdillon &cnt.v_vnodepgsin, 0, vcnt, "IU", "Vnodein pages"); 28293823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vnodepgsout, CTLTYPE_UINT|CTLFLAG_RD, 28393823Sdillon &cnt.v_vnodepgsout, 0, vcnt, "IU", "Vnodeout pages"); 28493823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_intrans, CTLTYPE_UINT|CTLFLAG_RD, 28593823Sdillon &cnt.v_intrans, 0, vcnt, "IU", "In transit page blocking"); 28693823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_reactivated, CTLTYPE_UINT|CTLFLAG_RD, 28793823Sdillon &cnt.v_reactivated, 0, vcnt, "IU", "Reactivated pages"); 28893823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_pdwakeups, CTLTYPE_UINT|CTLFLAG_RD, 28993823Sdillon &cnt.v_pdwakeups, 0, vcnt, "IU", "Pagedaemon wakeups"); 29093823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_pdpages, CTLTYPE_UINT|CTLFLAG_RD, 29193823Sdillon &cnt.v_pdpages, 0, vcnt, "IU", "Pagedaemon page scans"); 29293823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_dfree, CTLTYPE_UINT|CTLFLAG_RD, 29393823Sdillon &cnt.v_dfree, 0, vcnt, "IU", ""); 29493823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_pfree, CTLTYPE_UINT|CTLFLAG_RD, 29593823Sdillon &cnt.v_pfree, 0, vcnt, "IU", ""); 29693823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_tfree, CTLTYPE_UINT|CTLFLAG_RD, 29793823Sdillon &cnt.v_tfree, 0, vcnt, "IU", ""); 29893823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_page_size, CTLTYPE_UINT|CTLFLAG_RD, 29993823Sdillon &cnt.v_page_size, 0, vcnt, "IU", ""); 30093823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_page_count, CTLTYPE_UINT|CTLFLAG_RD, 30193823Sdillon &cnt.v_page_count, 0, vcnt, "IU", ""); 30293823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_free_reserved, CTLTYPE_UINT|CTLFLAG_RD, 30393823Sdillon &cnt.v_free_reserved, 0, vcnt, "IU", ""); 30493823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_free_target, CTLTYPE_UINT|CTLFLAG_RD, 30593823Sdillon &cnt.v_free_target, 0, vcnt, "IU", ""); 30693823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_free_min, CTLTYPE_UINT|CTLFLAG_RD, 30793823Sdillon &cnt.v_free_min, 0, vcnt, "IU", ""); 30893823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_free_count, CTLTYPE_UINT|CTLFLAG_RD, 30993823Sdillon &cnt.v_free_count, 0, vcnt, "IU", ""); 31093823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_wire_count, CTLTYPE_UINT|CTLFLAG_RD, 31193823Sdillon &cnt.v_wire_count, 0, vcnt, "IU", ""); 31293823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_active_count, CTLTYPE_UINT|CTLFLAG_RD, 31393823Sdillon &cnt.v_active_count, 0, vcnt, "IU", ""); 31493823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_inactive_target, CTLTYPE_UINT|CTLFLAG_RD, 31593823Sdillon &cnt.v_inactive_target, 0, vcnt, "IU", ""); 31693823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_inactive_count, CTLTYPE_UINT|CTLFLAG_RD, 31793823Sdillon &cnt.v_inactive_count, 0, vcnt, "IU", ""); 31893823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_cache_count, CTLTYPE_UINT|CTLFLAG_RD, 31993823Sdillon &cnt.v_cache_count, 0, vcnt, "IU", ""); 32093823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_cache_min, CTLTYPE_UINT|CTLFLAG_RD, 32193823Sdillon &cnt.v_cache_min, 0, vcnt, "IU", ""); 32293823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_cache_max, CTLTYPE_UINT|CTLFLAG_RD, 32393823Sdillon &cnt.v_cache_max, 0, vcnt, "IU", ""); 32493823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_pageout_free_min, CTLTYPE_UINT|CTLFLAG_RD, 32593823Sdillon &cnt.v_pageout_free_min, 0, vcnt, "IU", ""); 32693823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_interrupt_free_min, CTLTYPE_UINT|CTLFLAG_RD, 32793823Sdillon &cnt.v_interrupt_free_min, 0, vcnt, "IU", ""); 32893823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_forks, CTLTYPE_UINT|CTLFLAG_RD, 32993823Sdillon &cnt.v_forks, 0, vcnt, "IU", "Number of fork() calls"); 33093823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vforks, CTLTYPE_UINT|CTLFLAG_RD, 33193823Sdillon &cnt.v_vforks, 0, vcnt, "IU", "Number of vfork() calls"); 33293823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_rforks, CTLTYPE_UINT|CTLFLAG_RD, 33393823Sdillon &cnt.v_rforks, 0, vcnt, "IU", "Number of rfork() calls"); 33493823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_kthreads, CTLTYPE_UINT|CTLFLAG_RD, 33593823Sdillon &cnt.v_kthreads, 0, vcnt, "IU", "Number of fork() calls by kernel"); 33693823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_forkpages, CTLTYPE_UINT|CTLFLAG_RD, 33793823Sdillon &cnt.v_forkpages, 0, vcnt, "IU", "VM pages affected by fork()"); 33893823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vforkpages, CTLTYPE_UINT|CTLFLAG_RD, 33993823Sdillon &cnt.v_vforkpages, 0, vcnt, "IU", "VM pages affected by vfork()"); 34093823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_rforkpages, CTLTYPE_UINT|CTLFLAG_RD, 34193823Sdillon &cnt.v_rforkpages, 0, vcnt, "IU", "VM pages affected by rfork()"); 34293823SdillonSYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_kthreadpages, CTLTYPE_UINT|CTLFLAG_RD, 34393823Sdillon &cnt.v_kthreadpages, 0, vcnt, "IU", "VM pages affected by fork() by kernel"); 34493823Sdillon 34540794SpeterSYSCTL_INT(_vm_stats_misc, OID_AUTO, 34640794Speter zero_page_count, CTLFLAG_RD, &vm_page_zero_count, 0, ""); 34740794Speter#if 0 34840794SpeterSYSCTL_INT(_vm_stats_misc, OID_AUTO, 34940794Speter page_mask, CTLFLAG_RD, &page_mask, 0, ""); 35040794SpeterSYSCTL_INT(_vm_stats_misc, OID_AUTO, 35140794Speter page_shift, CTLFLAG_RD, &page_shift, 0, ""); 35240794SpeterSYSCTL_INT(_vm_stats_misc, OID_AUTO, 35340794Speter first_page, CTLFLAG_RD, &first_page, 0, ""); 35440794SpeterSYSCTL_INT(_vm_stats_misc, OID_AUTO, 35540794Speter last_page, CTLFLAG_RD, &last_page, 0, ""); 35640794Speter#endif 357