kernel - Fix vmtotal sysctl
[dragonfly.git] / sys / sys / vmmeter.h
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1/*-
2 * Copyright (c) 1982, 1986, 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 * @(#)vmmeter.h 8.2 (Berkeley) 7/10/94
34 * $FreeBSD: src/sys/sys/vmmeter.h,v 1.21.2.2 2002/10/10 19:28:21 dillon Exp $
1bd40720 35 * $DragonFly: src/sys/sys/vmmeter.h,v 1.10 2006/05/20 02:42:13 dillon Exp $
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36 */
37
38#ifndef _SYS_VMMETER_H_
39#define _SYS_VMMETER_H_
40
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41#ifndef _SYS_TYPES_H_
42#include <sys/types.h>
43#endif
44
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45/*
46 * System wide statistics counters.
47 */
48struct vmmeter {
49 /*
50 * General system activity.
51 */
6bdb32ed 52#define vmmeter_uint_begin v_swtch
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53 u_int v_swtch; /* context switches */
54 u_int v_trap; /* calls to trap */
55 u_int v_syscall; /* calls to syscall() */
56 u_int v_intr; /* device interrupts */
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57 u_int v_ipi; /* inter processor interrupts */
58 u_int v_timer; /* LAPIC timer interrupts */
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59 u_int v_soft; /* software interrupts */
60 /*
61 * Virtual memory activity.
62 */
63 u_int v_vm_faults; /* number of address memory faults */
64 u_int v_cow_faults; /* number of copy-on-writes */
65 u_int v_cow_optim; /* number of optimized copy-on-writes */
66 u_int v_zfod; /* pages zero filled on demand */
67 u_int v_ozfod; /* optimized zero fill pages */
68 u_int v_swapin; /* swap pager pageins */
69 u_int v_swapout; /* swap pager pageouts */
70 u_int v_swappgsin; /* swap pager pages paged in */
71 u_int v_swappgsout; /* swap pager pages paged out */
72 u_int v_vnodein; /* vnode pager pageins */
73 u_int v_vnodeout; /* vnode pager pageouts */
74 u_int v_vnodepgsin; /* vnode_pager pages paged in */
75 u_int v_vnodepgsout; /* vnode pager pages paged out */
76 u_int v_intrans; /* intransit blocking page faults */
77 u_int v_reactivated; /* number of pages reactivated from free list */
78 u_int v_pdwakeups; /* number of times daemon has awaken from sleep */
79 u_int v_pdpages; /* number of pages analyzed by daemon */
80
81 u_int v_dfree; /* pages freed by daemon */
82 u_int v_pfree; /* pages freed by exiting processes */
83 u_int v_tfree; /* total pages freed */
84 /*
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85 * Fork/vfork/rfork activity.
86 */
87 u_int v_forks; /* number of fork() calls */
88 u_int v_vforks; /* number of vfork() calls */
89 u_int v_rforks; /* number of rfork() calls */
a6f89c72 90 u_int v_exec; /* number of exec() calls */
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91 u_int v_kthreads; /* number of fork() calls by kernel */
92 u_int v_forkpages; /* number of VM pages affected by fork() */
93 u_int v_vforkpages; /* number of VM pages affected by vfork() */
94 u_int v_rforkpages; /* number of VM pages affected by rfork() */
95 u_int v_kthreadpages; /* number of VM pages affected by fork() by kernel */
96 u_int v_intrans_coll; /* intransit map collisions (total) */
97 u_int v_intrans_wait; /* intransit map collisions which blocked */
545a1cd3 98 u_int v_forwarded_ints; /* forwarded interrupts due to MP lock */
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99 u_int v_forwarded_hits;
100 u_int v_forwarded_misses;
a64ba182 101 u_int v_sendsys; /* calls to sendsys() */
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102 u_int v_waitsys; /* calls to waitsys() */
103#define vmmeter_uint_end v_waitsys
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104};
105
106struct vmstats {
107 /*
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108 * Distribution of page usages.
109 */
110 u_int v_page_size; /* page size in bytes */
111 u_int v_page_count; /* total number of pages in system */
112 u_int v_free_reserved; /* number of pages reserved for deadlock */
113 u_int v_free_target; /* number of pages desired free */
114 u_int v_free_min; /* minimum number of pages desired free */
115 u_int v_free_count; /* number of pages free */
116 u_int v_wire_count; /* number of pages wired down */
117 u_int v_active_count; /* number of pages active */
118 u_int v_inactive_target; /* number of pages desired inactive */
119 u_int v_inactive_count; /* number of pages inactive */
120 u_int v_cache_count; /* number of pages on buffer cache queue */
121 u_int v_cache_min; /* min number of pages desired on cache queue */
122 u_int v_cache_max; /* max number of pages in cached obj */
123 u_int v_pageout_free_min; /* min number pages reserved for kernel */
124 u_int v_interrupt_free_min; /* reserved number of pages for int code */
125 u_int v_free_severe; /* severe depletion of pages below this pt */
984263bc 126};
984263bc 127
12e4aaff 128#ifdef _KERNEL
984263bc 129
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130/* note: vmmeter 'cnt' structure is now per-cpu */
131extern struct vmstats vmstats;
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132
133#endif
134
135/* systemwide totals computed every five seconds */
136struct vmtotal
137{
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138 long t_rq; /* length of the run queue */
139 long t_dw; /* jobs in ``disk wait'' (neg priority) */
140 long t_pw; /* jobs in page wait */
141 long t_sl; /* jobs sleeping in core */
142 long t_sw; /* swapped out runnable/short block jobs */
143 int64_t t_vm; /* total virtual memory */
144 int64_t t_avm; /* active virtual memory */
145 long t_rm; /* total real memory in use */
146 long t_arm; /* active real memory */
147 int64_t t_vmshr; /* shared virtual memory */
148 int64_t t_avmshr; /* active shared virtual memory */
149 long t_rmshr; /* shared real memory */
150 long t_armshr; /* active shared real memory */
151 long t_free; /* free memory pages */
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152};
153
12e4aaff 154#ifdef PGINPROF
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155/*
156 * Optional instrumentation.
157 */
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158
159#define NDMON 128
160#define NSMON 128
161
162#define DRES 20
163#define SRES 5
164
165#define PMONMIN 20
166#define PRES 50
167#define NPMON 64
168
169#define RMONMIN 130
170#define RRES 5
171#define NRMON 64
172
173/* data and stack size distribution counters */
174u_int dmon[NDMON+1];
175u_int smon[NSMON+1];
176
177/* page in time distribution counters */
178u_int pmon[NPMON+2];
179
180/* reclaim time distribution counters */
181u_int rmon[NRMON+2];
182
183int pmonmin;
184int pres;
185int rmonmin;
186int rres;
187
188u_int rectime; /* accumulator for reclaim times */
189u_int pgintime; /* accumulator for page in times */
984263bc 190
12e4aaff 191#endif /* PGINPROF */
984263bc 192#endif