1/*-
2 * Copyright (c) 2005 Robert N. M. Watson
3 * 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 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
| 1/*-
2 * Copyright (c) 2005 Robert N. M. Watson
3 * 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 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
|
26 * $FreeBSD: head/lib/libmemstat/memstat_internal.h 224569 2011-08-01 09:43:35Z pluknet $
| 26 * $FreeBSD: head/lib/libmemstat/memstat_internal.h 261726 2014-02-10 20:09:10Z glebius $
|
27 */
28
29#ifndef _MEMSTAT_INTERNAL_H_
30#define _MEMSTAT_INTERNAL_H_
31
32/*
33 * memstat maintains its own internal notion of statistics on each memory
34 * type, common across UMA and kernel malloc. Some fields are straight from
35 * the allocator statistics, others are derived when extracted from the
36 * kernel. A struct memory_type will describe each type supported by an
37 * allocator. memory_type structures can be chained into lists.
38 */
39struct memory_type {
40 /*
41 * Static properties of type.
42 */
43 int mt_allocator; /* malloc(9), uma(9), etc. */
44 char mt_name[MEMTYPE_MAXNAME]; /* name of memory type. */
45
46 /*
47 * (Relatively) static zone settings, that don't uniquely identify
48 * the zone, but also don't change much.
49 */
50 uint64_t mt_countlimit; /* 0, or maximum allocations. */
51 uint64_t mt_byteslimit; /* 0, or maximum bytes. */
52 uint64_t mt_sizemask; /* malloc: allocated size bitmask. */
53 uint64_t mt_size; /* uma: size of objects. */
| 27 */
28
29#ifndef _MEMSTAT_INTERNAL_H_
30#define _MEMSTAT_INTERNAL_H_
31
32/*
33 * memstat maintains its own internal notion of statistics on each memory
34 * type, common across UMA and kernel malloc. Some fields are straight from
35 * the allocator statistics, others are derived when extracted from the
36 * kernel. A struct memory_type will describe each type supported by an
37 * allocator. memory_type structures can be chained into lists.
38 */
39struct memory_type {
40 /*
41 * Static properties of type.
42 */
43 int mt_allocator; /* malloc(9), uma(9), etc. */
44 char mt_name[MEMTYPE_MAXNAME]; /* name of memory type. */
45
46 /*
47 * (Relatively) static zone settings, that don't uniquely identify
48 * the zone, but also don't change much.
49 */
50 uint64_t mt_countlimit; /* 0, or maximum allocations. */
51 uint64_t mt_byteslimit; /* 0, or maximum bytes. */
52 uint64_t mt_sizemask; /* malloc: allocated size bitmask. */
53 uint64_t mt_size; /* uma: size of objects. */
|
| 54 uint64_t mt_rsize; /* uma: real size of objects. */
|
54
55 /*
56 * Zone or type information that includes all caches and any central
57 * zone state. Depending on the allocator, this may be synthesized
58 * from several sources, or directly measured.
59 */
60 uint64_t mt_memalloced; /* Bytes allocated over life time. */
61 uint64_t mt_memfreed; /* Bytes freed over life time. */
62 uint64_t mt_numallocs; /* Allocations over life time. */
63 uint64_t mt_numfrees; /* Frees over life time. */
64 uint64_t mt_bytes; /* Bytes currently allocated. */
65 uint64_t mt_count; /* Number of current allocations. */
66 uint64_t mt_free; /* Number of cached free items. */
67 uint64_t mt_failures; /* Number of allocation failures. */
68 uint64_t mt_sleeps; /* Number of allocation sleeps. */
69
70 /*
71 * Caller-owned memory.
72 */
73 void *mt_caller_pointer[MEMSTAT_MAXCALLER]; /* Pointers. */
74 uint64_t mt_caller_uint64[MEMSTAT_MAXCALLER]; /* Integers. */
75
76 /*
77 * For allocators making use of per-CPU caches, we also provide raw
78 * statistics from the central allocator and each per-CPU cache,
79 * which (combined) sometimes make up the above general statistics.
80 *
81 * First, central zone/type state, all numbers excluding any items
82 * cached in per-CPU caches.
83 *
84 * XXXRW: Might be desirable to separately expose allocation stats
85 * from zone, which should (combined with per-cpu) add up to the
86 * global stats above.
87 */
88 uint64_t mt_zonefree; /* Free items in zone. */
89 uint64_t mt_kegfree; /* Free items in keg. */
90
91 /*
92 * Per-CPU measurements fall into two categories: per-CPU allocation,
93 * and per-CPU cache state.
94 */
95 struct mt_percpu_alloc_s {
96 uint64_t mtp_memalloced;/* Per-CPU mt_memalloced. */
97 uint64_t mtp_memfreed; /* Per-CPU mt_memfreed. */
98 uint64_t mtp_numallocs; /* Per-CPU mt_numallocs. */
99 uint64_t mtp_numfrees; /* Per-CPU mt_numfrees. */
100 uint64_t mtp_sizemask; /* Per-CPU mt_sizemask. */
101 void *mtp_caller_pointer[MEMSTAT_MAXCALLER];
102 uint64_t mtp_caller_uint64[MEMSTAT_MAXCALLER];
103 } *mt_percpu_alloc;
104
105 struct mt_percpu_cache_s {
106 uint64_t mtp_free; /* Per-CPU cache free items. */
107 } *mt_percpu_cache;
108
109 LIST_ENTRY(memory_type) mt_list; /* List of types. */
110};
111
112/*
113 * Description of struct memory_type_list is in memstat.h.
114 */
115struct memory_type_list {
116 LIST_HEAD(, memory_type) mtl_list;
117 int mtl_error;
118};
119
120void _memstat_mtl_empty(struct memory_type_list *list);
121struct memory_type *_memstat_mt_allocate(struct memory_type_list *list,
122 int allocator, const char *name, int maxcpus);
123void _memstat_mt_reset_stats(struct memory_type *mtp,
124 int maxcpus);
125
126#endif /* !_MEMSTAT_INTERNAL_H_ */
| 55
56 /*
57 * Zone or type information that includes all caches and any central
58 * zone state. Depending on the allocator, this may be synthesized
59 * from several sources, or directly measured.
60 */
61 uint64_t mt_memalloced; /* Bytes allocated over life time. */
62 uint64_t mt_memfreed; /* Bytes freed over life time. */
63 uint64_t mt_numallocs; /* Allocations over life time. */
64 uint64_t mt_numfrees; /* Frees over life time. */
65 uint64_t mt_bytes; /* Bytes currently allocated. */
66 uint64_t mt_count; /* Number of current allocations. */
67 uint64_t mt_free; /* Number of cached free items. */
68 uint64_t mt_failures; /* Number of allocation failures. */
69 uint64_t mt_sleeps; /* Number of allocation sleeps. */
70
71 /*
72 * Caller-owned memory.
73 */
74 void *mt_caller_pointer[MEMSTAT_MAXCALLER]; /* Pointers. */
75 uint64_t mt_caller_uint64[MEMSTAT_MAXCALLER]; /* Integers. */
76
77 /*
78 * For allocators making use of per-CPU caches, we also provide raw
79 * statistics from the central allocator and each per-CPU cache,
80 * which (combined) sometimes make up the above general statistics.
81 *
82 * First, central zone/type state, all numbers excluding any items
83 * cached in per-CPU caches.
84 *
85 * XXXRW: Might be desirable to separately expose allocation stats
86 * from zone, which should (combined with per-cpu) add up to the
87 * global stats above.
88 */
89 uint64_t mt_zonefree; /* Free items in zone. */
90 uint64_t mt_kegfree; /* Free items in keg. */
91
92 /*
93 * Per-CPU measurements fall into two categories: per-CPU allocation,
94 * and per-CPU cache state.
95 */
96 struct mt_percpu_alloc_s {
97 uint64_t mtp_memalloced;/* Per-CPU mt_memalloced. */
98 uint64_t mtp_memfreed; /* Per-CPU mt_memfreed. */
99 uint64_t mtp_numallocs; /* Per-CPU mt_numallocs. */
100 uint64_t mtp_numfrees; /* Per-CPU mt_numfrees. */
101 uint64_t mtp_sizemask; /* Per-CPU mt_sizemask. */
102 void *mtp_caller_pointer[MEMSTAT_MAXCALLER];
103 uint64_t mtp_caller_uint64[MEMSTAT_MAXCALLER];
104 } *mt_percpu_alloc;
105
106 struct mt_percpu_cache_s {
107 uint64_t mtp_free; /* Per-CPU cache free items. */
108 } *mt_percpu_cache;
109
110 LIST_ENTRY(memory_type) mt_list; /* List of types. */
111};
112
113/*
114 * Description of struct memory_type_list is in memstat.h.
115 */
116struct memory_type_list {
117 LIST_HEAD(, memory_type) mtl_list;
118 int mtl_error;
119};
120
121void _memstat_mtl_empty(struct memory_type_list *list);
122struct memory_type *_memstat_mt_allocate(struct memory_type_list *list,
123 int allocator, const char *name, int maxcpus);
124void _memstat_mt_reset_stats(struct memory_type *mtp,
125 int maxcpus);
126
127#endif /* !_MEMSTAT_INTERNAL_H_ */
|