Index: head/sys/sys/vmmeter.h =================================================================== --- head/sys/sys/vmmeter.h (revision 333050) +++ head/sys/sys/vmmeter.h (revision 333051) @@ -1,210 +1,207 @@ /*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 1982, 1986, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)vmmeter.h 8.2 (Berkeley) 7/10/94 * $FreeBSD$ */ #ifndef _SYS_VMMETER_H_ #define _SYS_VMMETER_H_ /* * This value is used by ps(1) to change sleep state flag from 'S' to * 'I' and by the sched process to set the alarm clock. */ #define MAXSLP 20 struct vmtotal { uint64_t t_vm; /* total virtual memory */ uint64_t t_avm; /* active virtual memory */ uint64_t t_rm; /* total real memory in use */ uint64_t t_arm; /* active real memory */ uint64_t t_vmshr; /* shared virtual memory */ uint64_t t_avmshr; /* active shared virtual memory */ uint64_t t_rmshr; /* shared real memory */ uint64_t t_armshr; /* active shared real memory */ uint64_t t_free; /* free memory pages */ int16_t t_rq; /* length of the run queue */ int16_t t_dw; /* threads in ``disk wait'' (neg priority) */ int16_t t_pw; /* threads in page wait */ int16_t t_sl; /* threads sleeping in core */ int16_t t_sw; /* swapped out runnable/short block threads */ uint16_t t_pad[3]; }; #if defined(_KERNEL) || defined(_WANT_VMMETER) #include #ifdef _KERNEL #define VMMETER_ALIGNED __aligned(CACHE_LINE_SIZE) #else #define VMMETER_ALIGNED #endif /* * System wide statistics counters. * Locking: - * a - locked by atomic operations * c - constant after initialization - * f - locked by vm_page_queue_free_mtx * p - uses counter(9) - * q - changes are synchronized by the corresponding vm_pagequeue lock */ struct vmmeter { /* * General system activity. */ counter_u64_t v_swtch; /* (p) context switches */ counter_u64_t v_trap; /* (p) calls to trap */ counter_u64_t v_syscall; /* (p) calls to syscall() */ counter_u64_t v_intr; /* (p) device interrupts */ counter_u64_t v_soft; /* (p) software interrupts */ /* * Virtual memory activity. */ counter_u64_t v_vm_faults; /* (p) address memory faults */ counter_u64_t v_io_faults; /* (p) page faults requiring I/O */ counter_u64_t v_cow_faults; /* (p) copy-on-writes faults */ counter_u64_t v_cow_optim; /* (p) optimized COW faults */ counter_u64_t v_zfod; /* (p) pages zero filled on demand */ counter_u64_t v_ozfod; /* (p) optimized zero fill pages */ counter_u64_t v_swapin; /* (p) swap pager pageins */ counter_u64_t v_swapout; /* (p) swap pager pageouts */ counter_u64_t v_swappgsin; /* (p) swap pager pages paged in */ counter_u64_t v_swappgsout; /* (p) swap pager pages paged out */ counter_u64_t v_vnodein; /* (p) vnode pager pageins */ counter_u64_t v_vnodeout; /* (p) vnode pager pageouts */ counter_u64_t v_vnodepgsin; /* (p) vnode_pager pages paged in */ counter_u64_t v_vnodepgsout; /* (p) vnode pager pages paged out */ counter_u64_t v_intrans; /* (p) intransit blocking page faults */ counter_u64_t v_reactivated; /* (p) reactivated by the pagedaemon */ counter_u64_t v_pdwakeups; /* (p) times daemon has awaken */ counter_u64_t v_pdpages; /* (p) pages analyzed by daemon */ counter_u64_t v_pdshortfalls; /* (p) page reclamation shortfalls */ counter_u64_t v_dfree; /* (p) pages freed by daemon */ counter_u64_t v_pfree; /* (p) pages freed by processes */ counter_u64_t v_tfree; /* (p) total pages freed */ /* * Fork/vfork/rfork activity. */ counter_u64_t v_forks; /* (p) fork() calls */ counter_u64_t v_vforks; /* (p) vfork() calls */ counter_u64_t v_rforks; /* (p) rfork() calls */ counter_u64_t v_kthreads; /* (p) fork() calls by kernel */ counter_u64_t v_forkpages; /* (p) pages affected by fork() */ counter_u64_t v_vforkpages; /* (p) pages affected by vfork() */ counter_u64_t v_rforkpages; /* (p) pages affected by rfork() */ counter_u64_t v_kthreadpages; /* (p) ... and by kernel fork() */ counter_u64_t v_wire_count; /* (p) pages wired down */ #define VM_METER_NCOUNTERS \ (offsetof(struct vmmeter, v_page_size) / sizeof(counter_u64_t)) /* * Distribution of page usages. */ u_int v_page_size; /* (c) page size in bytes */ u_int v_page_count; /* (c) total number of pages in system */ u_int v_free_reserved; /* (c) pages reserved for deadlock */ u_int v_free_target; /* (c) pages desired free */ u_int v_free_min; /* (c) pages desired free */ u_int v_inactive_target; /* (c) pages desired inactive */ u_int v_pageout_free_min; /* (c) min pages reserved for kernel */ u_int v_interrupt_free_min; /* (c) reserved pages for int code */ u_int v_free_severe; /* (c) severe page depletion point */ }; #endif /* _KERNEL || _WANT_VMMETER */ #ifdef _KERNEL #include extern struct vmmeter vm_cnt; extern domainset_t vm_min_domains; extern domainset_t vm_severe_domains; #define VM_CNT_ADD(var, x) counter_u64_add(vm_cnt.var, x) #define VM_CNT_INC(var) VM_CNT_ADD(var, 1) #define VM_CNT_FETCH(var) counter_u64_fetch(vm_cnt.var) static inline void vm_wire_add(int cnt) { VM_CNT_ADD(v_wire_count, cnt); } static inline void vm_wire_sub(int cnt) { VM_CNT_ADD(v_wire_count, -cnt); } u_int vm_free_count(void); static inline u_int vm_wire_count(void) { return (VM_CNT_FETCH(v_wire_count)); } /* * Return TRUE if we are under our severe low-free-pages threshold * * This routine is typically used at the user<->system interface to determine * whether we need to block in order to avoid a low memory deadlock. */ static inline int vm_page_count_severe(void) { return (!DOMAINSET_EMPTY(&vm_severe_domains)); } /* * Return TRUE if we are under our minimum low-free-pages threshold. * * This routine is typically used within the system to determine whether * we can execute potentially very expensive code in terms of memory. It * is also used by the pageout daemon to calculate when to sleep, when * to wake waiters up, and when (after making a pass) to become more * desperate. */ static inline int vm_page_count_min(void) { return (!DOMAINSET_EMPTY(&vm_min_domains)); } #endif /* _KERNEL */ #endif /* _SYS_VMMETER_H_ */ Index: head/sys/vm/vm_meter.c =================================================================== --- head/sys/vm/vm_meter.c (revision 333050) +++ head/sys/vm/vm_meter.c (revision 333051) @@ -1,528 +1,528 @@ /*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 1982, 1986, 1989, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)vm_meter.c 8.4 (Berkeley) 1/4/94 */ #include __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include -struct vmmeter __exclusive_cache_line vm_cnt = { +struct vmmeter __read_mostly vm_cnt = { .v_swtch = EARLY_COUNTER, .v_trap = EARLY_COUNTER, .v_syscall = EARLY_COUNTER, .v_intr = EARLY_COUNTER, .v_soft = EARLY_COUNTER, .v_vm_faults = EARLY_COUNTER, .v_io_faults = EARLY_COUNTER, .v_cow_faults = EARLY_COUNTER, .v_cow_optim = EARLY_COUNTER, .v_zfod = EARLY_COUNTER, .v_ozfod = EARLY_COUNTER, .v_swapin = EARLY_COUNTER, .v_swapout = EARLY_COUNTER, .v_swappgsin = EARLY_COUNTER, .v_swappgsout = EARLY_COUNTER, .v_vnodein = EARLY_COUNTER, .v_vnodeout = EARLY_COUNTER, .v_vnodepgsin = EARLY_COUNTER, .v_vnodepgsout = EARLY_COUNTER, .v_intrans = EARLY_COUNTER, .v_reactivated = EARLY_COUNTER, .v_pdwakeups = EARLY_COUNTER, .v_pdpages = EARLY_COUNTER, .v_pdshortfalls = EARLY_COUNTER, .v_dfree = EARLY_COUNTER, .v_pfree = EARLY_COUNTER, .v_tfree = EARLY_COUNTER, .v_forks = EARLY_COUNTER, .v_vforks = EARLY_COUNTER, .v_rforks = EARLY_COUNTER, .v_kthreads = EARLY_COUNTER, .v_forkpages = EARLY_COUNTER, .v_vforkpages = EARLY_COUNTER, .v_rforkpages = EARLY_COUNTER, .v_kthreadpages = EARLY_COUNTER, .v_wire_count = EARLY_COUNTER, }; static void vmcounter_startup(void) { counter_u64_t *cnt = (counter_u64_t *)&vm_cnt; COUNTER_ARRAY_ALLOC(cnt, VM_METER_NCOUNTERS, M_WAITOK); } SYSINIT(counter, SI_SUB_KMEM, SI_ORDER_FIRST, vmcounter_startup, NULL); SYSCTL_UINT(_vm, VM_V_FREE_MIN, v_free_min, CTLFLAG_RW, &vm_cnt.v_free_min, 0, "Minimum low-free-pages threshold"); SYSCTL_UINT(_vm, VM_V_FREE_TARGET, v_free_target, CTLFLAG_RW, &vm_cnt.v_free_target, 0, "Desired free pages"); SYSCTL_UINT(_vm, VM_V_FREE_RESERVED, v_free_reserved, CTLFLAG_RW, &vm_cnt.v_free_reserved, 0, "Pages reserved for deadlock"); SYSCTL_UINT(_vm, VM_V_INACTIVE_TARGET, v_inactive_target, CTLFLAG_RW, &vm_cnt.v_inactive_target, 0, "Pages desired inactive"); SYSCTL_UINT(_vm, VM_V_PAGEOUT_FREE_MIN, v_pageout_free_min, CTLFLAG_RW, &vm_cnt.v_pageout_free_min, 0, "Min pages reserved for kernel"); SYSCTL_UINT(_vm, OID_AUTO, v_free_severe, CTLFLAG_RW, &vm_cnt.v_free_severe, 0, "Severe page depletion point"); static int sysctl_vm_loadavg(SYSCTL_HANDLER_ARGS) { #ifdef SCTL_MASK32 u_int32_t la[4]; if (req->flags & SCTL_MASK32) { la[0] = averunnable.ldavg[0]; la[1] = averunnable.ldavg[1]; la[2] = averunnable.ldavg[2]; la[3] = averunnable.fscale; return SYSCTL_OUT(req, la, sizeof(la)); } else #endif return SYSCTL_OUT(req, &averunnable, sizeof(averunnable)); } SYSCTL_PROC(_vm, VM_LOADAVG, loadavg, CTLTYPE_STRUCT | CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, 0, sysctl_vm_loadavg, "S,loadavg", "Machine loadaverage history"); /* * This function aims to determine if the object is mapped, * specifically, if it is referenced by a vm_map_entry. Because * objects occasionally acquire transient references that do not * represent a mapping, the method used here is inexact. However, it * has very low overhead and is good enough for the advisory * vm.vmtotal sysctl. */ static bool is_object_active(vm_object_t obj) { return (obj->ref_count > obj->shadow_count); } #if defined(COMPAT_FREEBSD11) struct vmtotal11 { int16_t t_rq; int16_t t_dw; int16_t t_pw; int16_t t_sl; int16_t t_sw; int32_t t_vm; int32_t t_avm; int32_t t_rm; int32_t t_arm; int32_t t_vmshr; int32_t t_avmshr; int32_t t_rmshr; int32_t t_armshr; int32_t t_free; }; #endif static int vmtotal(SYSCTL_HANDLER_ARGS) { struct vmtotal total; #if defined(COMPAT_FREEBSD11) struct vmtotal11 total11; #endif vm_object_t object; struct proc *p; struct thread *td; if (req->oldptr == NULL) { #if defined(COMPAT_FREEBSD11) if (curproc->p_osrel < P_OSREL_VMTOTAL64) return (SYSCTL_OUT(req, NULL, sizeof(total11))); #endif return (SYSCTL_OUT(req, NULL, sizeof(total))); } bzero(&total, sizeof(total)); /* * Calculate process statistics. */ sx_slock(&allproc_lock); FOREACH_PROC_IN_SYSTEM(p) { if ((p->p_flag & P_SYSTEM) != 0) continue; PROC_LOCK(p); if (p->p_state != PRS_NEW) { FOREACH_THREAD_IN_PROC(p, td) { thread_lock(td); switch (td->td_state) { case TDS_INHIBITED: if (TD_IS_SWAPPED(td)) total.t_sw++; else if (TD_IS_SLEEPING(td)) { if (td->td_priority <= PZERO) total.t_dw++; else total.t_sl++; } break; case TDS_CAN_RUN: total.t_sw++; break; case TDS_RUNQ: case TDS_RUNNING: total.t_rq++; break; default: break; } thread_unlock(td); } } PROC_UNLOCK(p); } sx_sunlock(&allproc_lock); /* * Calculate object memory usage statistics. */ mtx_lock(&vm_object_list_mtx); TAILQ_FOREACH(object, &vm_object_list, object_list) { /* * Perform unsynchronized reads on the object. In * this case, the lack of synchronization should not * impair the accuracy of the reported statistics. */ if ((object->flags & OBJ_FICTITIOUS) != 0) { /* * Devices, like /dev/mem, will badly skew our totals. */ continue; } if (object->ref_count == 0) { /* * Also skip unreferenced objects, including * vnodes representing mounted file systems. */ continue; } if (object->ref_count == 1 && (object->flags & OBJ_NOSPLIT) != 0) { /* * Also skip otherwise unreferenced swap * objects backing tmpfs vnodes, and POSIX or * SysV shared memory. */ continue; } total.t_vm += object->size; total.t_rm += object->resident_page_count; if (is_object_active(object)) { total.t_avm += object->size; total.t_arm += object->resident_page_count; } if (object->shadow_count > 1) { /* shared object */ total.t_vmshr += object->size; total.t_rmshr += object->resident_page_count; if (is_object_active(object)) { total.t_avmshr += object->size; total.t_armshr += object->resident_page_count; } } } mtx_unlock(&vm_object_list_mtx); total.t_pw = vm_wait_count(); total.t_free = vm_free_count(); #if defined(COMPAT_FREEBSD11) /* sysctl(8) allocates twice as much memory as reported by sysctl(3) */ if (curproc->p_osrel < P_OSREL_VMTOTAL64 && (req->oldlen == sizeof(total11) || req->oldlen == 2 * sizeof(total11))) { bzero(&total11, sizeof(total11)); total11.t_rq = total.t_rq; total11.t_dw = total.t_dw; total11.t_pw = total.t_pw; total11.t_sl = total.t_sl; total11.t_sw = total.t_sw; total11.t_vm = total.t_vm; /* truncate */ total11.t_avm = total.t_avm; /* truncate */ total11.t_rm = total.t_rm; /* truncate */ total11.t_arm = total.t_arm; /* truncate */ total11.t_vmshr = total.t_vmshr; /* truncate */ total11.t_avmshr = total.t_avmshr; /* truncate */ total11.t_rmshr = total.t_rmshr; /* truncate */ total11.t_armshr = total.t_armshr; /* truncate */ total11.t_free = total.t_free; /* truncate */ return (SYSCTL_OUT(req, &total11, sizeof(total11))); } #endif return (SYSCTL_OUT(req, &total, sizeof(total))); } SYSCTL_PROC(_vm, VM_TOTAL, vmtotal, CTLTYPE_OPAQUE | CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, 0, vmtotal, "S,vmtotal", "System virtual memory statistics"); SYSCTL_NODE(_vm, OID_AUTO, stats, CTLFLAG_RW, 0, "VM meter stats"); static SYSCTL_NODE(_vm_stats, OID_AUTO, sys, CTLFLAG_RW, 0, "VM meter sys stats"); static SYSCTL_NODE(_vm_stats, OID_AUTO, vm, CTLFLAG_RW, 0, "VM meter vm stats"); SYSCTL_NODE(_vm_stats, OID_AUTO, misc, CTLFLAG_RW, 0, "VM meter misc stats"); static int sysctl_handle_vmstat(SYSCTL_HANDLER_ARGS) { uint64_t val; #ifdef COMPAT_FREEBSD11 uint32_t val32; #endif val = counter_u64_fetch(*(counter_u64_t *)arg1); #ifdef COMPAT_FREEBSD11 if (req->oldlen == sizeof(val32)) { val32 = val; /* truncate */ return (SYSCTL_OUT(req, &val32, sizeof(val32))); } #endif return (SYSCTL_OUT(req, &val, sizeof(val))); } #define VM_STATS(parent, var, descr) \ SYSCTL_OID(parent, OID_AUTO, var, CTLTYPE_U64 | CTLFLAG_MPSAFE | \ CTLFLAG_RD, &vm_cnt.var, 0, sysctl_handle_vmstat, "QU", descr) #define VM_STATS_VM(var, descr) VM_STATS(_vm_stats_vm, var, descr) #define VM_STATS_SYS(var, descr) VM_STATS(_vm_stats_sys, var, descr) VM_STATS_SYS(v_swtch, "Context switches"); VM_STATS_SYS(v_trap, "Traps"); VM_STATS_SYS(v_syscall, "System calls"); VM_STATS_SYS(v_intr, "Device interrupts"); VM_STATS_SYS(v_soft, "Software interrupts"); VM_STATS_VM(v_vm_faults, "Address memory faults"); VM_STATS_VM(v_io_faults, "Page faults requiring I/O"); VM_STATS_VM(v_cow_faults, "Copy-on-write faults"); VM_STATS_VM(v_cow_optim, "Optimized COW faults"); VM_STATS_VM(v_zfod, "Pages zero-filled on demand"); VM_STATS_VM(v_ozfod, "Optimized zero fill pages"); VM_STATS_VM(v_swapin, "Swap pager pageins"); VM_STATS_VM(v_swapout, "Swap pager pageouts"); VM_STATS_VM(v_swappgsin, "Swap pages swapped in"); VM_STATS_VM(v_swappgsout, "Swap pages swapped out"); VM_STATS_VM(v_vnodein, "Vnode pager pageins"); VM_STATS_VM(v_vnodeout, "Vnode pager pageouts"); VM_STATS_VM(v_vnodepgsin, "Vnode pages paged in"); VM_STATS_VM(v_vnodepgsout, "Vnode pages paged out"); VM_STATS_VM(v_intrans, "In transit page faults"); VM_STATS_VM(v_reactivated, "Pages reactivated by pagedaemon"); VM_STATS_VM(v_pdwakeups, "Pagedaemon wakeups"); VM_STATS_VM(v_pdpages, "Pages analyzed by pagedaemon"); VM_STATS_VM(v_pdshortfalls, "Page reclamation shortfalls"); VM_STATS_VM(v_dfree, "Pages freed by pagedaemon"); VM_STATS_VM(v_pfree, "Pages freed by exiting processes"); VM_STATS_VM(v_tfree, "Total pages freed"); VM_STATS_VM(v_forks, "Number of fork() calls"); VM_STATS_VM(v_vforks, "Number of vfork() calls"); VM_STATS_VM(v_rforks, "Number of rfork() calls"); VM_STATS_VM(v_kthreads, "Number of fork() calls by kernel"); VM_STATS_VM(v_forkpages, "VM pages affected by fork()"); VM_STATS_VM(v_vforkpages, "VM pages affected by vfork()"); VM_STATS_VM(v_rforkpages, "VM pages affected by rfork()"); VM_STATS_VM(v_kthreadpages, "VM pages affected by fork() by kernel"); static int sysctl_handle_vmstat_proc(SYSCTL_HANDLER_ARGS) { u_int (*fn)(void); uint32_t val; fn = arg1; val = fn(); return (SYSCTL_OUT(req, &val, sizeof(val))); } #define VM_STATS_PROC(var, descr, fn) \ SYSCTL_OID(_vm_stats_vm, OID_AUTO, var, CTLTYPE_U32 | CTLFLAG_MPSAFE | \ CTLFLAG_RD, fn, 0, sysctl_handle_vmstat_proc, "IU", descr) #define VM_STATS_UINT(var, descr) \ SYSCTL_UINT(_vm_stats_vm, OID_AUTO, var, CTLFLAG_RD, &vm_cnt.var, 0, descr) VM_STATS_UINT(v_page_size, "Page size in bytes"); VM_STATS_UINT(v_page_count, "Total number of pages in system"); VM_STATS_UINT(v_free_reserved, "Pages reserved for deadlock"); VM_STATS_UINT(v_free_target, "Pages desired free"); VM_STATS_UINT(v_free_min, "Minimum low-free-pages threshold"); VM_STATS_PROC(v_free_count, "Free pages", vm_free_count); VM_STATS_PROC(v_wire_count, "Wired pages", vm_wire_count); VM_STATS_PROC(v_active_count, "Active pages", vm_active_count); VM_STATS_UINT(v_inactive_target, "Desired inactive pages"); VM_STATS_PROC(v_inactive_count, "Inactive pages", vm_inactive_count); VM_STATS_PROC(v_laundry_count, "Pages eligible for laundering", vm_laundry_count); VM_STATS_UINT(v_pageout_free_min, "Min pages reserved for kernel"); VM_STATS_UINT(v_interrupt_free_min, "Reserved pages for interrupt code"); VM_STATS_UINT(v_free_severe, "Severe page depletion point"); #ifdef COMPAT_FREEBSD11 /* * Provide compatibility sysctls for the benefit of old utilities which exit * with an error if they cannot be found. */ SYSCTL_UINT(_vm_stats_vm, OID_AUTO, v_cache_count, CTLFLAG_RD, SYSCTL_NULL_UINT_PTR, 0, "Dummy for compatibility"); SYSCTL_UINT(_vm_stats_vm, OID_AUTO, v_tcached, CTLFLAG_RD, SYSCTL_NULL_UINT_PTR, 0, "Dummy for compatibility"); #endif u_int vm_free_count(void) { u_int v; int i; v = 0; for (i = 0; i < vm_ndomains; i++) v += vm_dom[i].vmd_free_count; return (v); } static u_int vm_pagequeue_count(int pq) { u_int v; int i; v = 0; for (i = 0; i < vm_ndomains; i++) v += vm_dom[i].vmd_pagequeues[pq].pq_cnt; return (v); } u_int vm_active_count(void) { return vm_pagequeue_count(PQ_ACTIVE); } u_int vm_inactive_count(void) { return vm_pagequeue_count(PQ_INACTIVE); } u_int vm_laundry_count(void) { return vm_pagequeue_count(PQ_LAUNDRY); } static void vm_domain_stats_init(struct vm_domain *vmd, struct sysctl_oid *parent) { struct sysctl_oid *oid; vmd->vmd_oid = SYSCTL_ADD_NODE(NULL, SYSCTL_CHILDREN(parent), OID_AUTO, vmd->vmd_name, CTLFLAG_RD, NULL, ""); oid = SYSCTL_ADD_NODE(NULL, SYSCTL_CHILDREN(vmd->vmd_oid), OID_AUTO, "stats", CTLFLAG_RD, NULL, ""); SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, "free_count", CTLFLAG_RD, &vmd->vmd_free_count, 0, "Free pages"); SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, "active", CTLFLAG_RD, &vmd->vmd_pagequeues[PQ_ACTIVE].pq_cnt, 0, "Active pages"); SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, "inactive", CTLFLAG_RD, &vmd->vmd_pagequeues[PQ_INACTIVE].pq_cnt, 0, "Inactive pages"); SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, "laundry", CTLFLAG_RD, &vmd->vmd_pagequeues[PQ_LAUNDRY].pq_cnt, 0, "laundry pages"); SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, "unswappable", CTLFLAG_RD, &vmd->vmd_pagequeues[PQ_UNSWAPPABLE].pq_cnt, 0, "Unswappable pages"); SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, "inactive_target", CTLFLAG_RD, &vmd->vmd_inactive_target, 0, "Target inactive pages"); SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, "free_target", CTLFLAG_RD, &vmd->vmd_free_target, 0, "Target free pages"); SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, "free_reserved", CTLFLAG_RD, &vmd->vmd_free_reserved, 0, "Reserved free pages"); SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, "free_min", CTLFLAG_RD, &vmd->vmd_free_min, 0, "Minimum free pages"); SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO, "free_severe", CTLFLAG_RD, &vmd->vmd_free_severe, 0, "Severe free pages"); } static void vm_stats_init(void *arg __unused) { struct sysctl_oid *oid; int i; oid = SYSCTL_ADD_NODE(NULL, SYSCTL_STATIC_CHILDREN(_vm), OID_AUTO, "domain", CTLFLAG_RD, NULL, ""); for (i = 0; i < vm_ndomains; i++) vm_domain_stats_init(VM_DOMAIN(i), oid); } SYSINIT(vmstats_init, SI_SUB_VM_CONF, SI_ORDER_FIRST, vm_stats_init, NULL);