summaryrefslogtreecommitdiffstats
path: root/fs/xfs/xfs_stats.h
blob: f64d0ae345c4d7b5dd3759fc2340572373a71743 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
/*
 * Copyright (c) 2000,2005 Silicon Graphics, Inc.
 * All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it would be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write the Free Software Foundation,
 * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
#ifndef __XFS_STATS_H__
#define __XFS_STATS_H__


#include <linux/percpu.h>

/*
 * The btree stats arrays have fixed offsets for the different stats. We
 * store the base index in the btree cursor via XFS_STATS_CALC_INDEX() and
 * that allows us to use fixed offsets into the stats array for each btree
 * stat. These index offsets are defined in the order they will be emitted
 * in the stats files, so it is possible to add new btree stat types by
 * appending to the enum list below.
 */
enum {
	__XBTS_lookup = 0,
	__XBTS_compare = 1,
	__XBTS_insrec = 2,
	__XBTS_delrec = 3,
	__XBTS_newroot = 4,
	__XBTS_killroot = 5,
	__XBTS_increment = 6,
	__XBTS_decrement = 7,
	__XBTS_lshift = 8,
	__XBTS_rshift = 9,
	__XBTS_split = 10,
	__XBTS_join = 11,
	__XBTS_alloc = 12,
	__XBTS_free = 13,
	__XBTS_moves = 14,

	__XBTS_MAX = 15,
};

/*
 * XFS global statistics
 */
struct __xfsstats {
# define XFSSTAT_END_EXTENT_ALLOC	4
	uint32_t		xs_allocx;
	uint32_t		xs_allocb;
	uint32_t		xs_freex;
	uint32_t		xs_freeb;
# define XFSSTAT_END_ALLOC_BTREE	(XFSSTAT_END_EXTENT_ALLOC+4)
	uint32_t		xs_abt_lookup;
	uint32_t		xs_abt_compare;
	uint32_t		xs_abt_insrec;
	uint32_t		xs_abt_delrec;
# define XFSSTAT_END_BLOCK_MAPPING	(XFSSTAT_END_ALLOC_BTREE+7)
	uint32_t		xs_blk_mapr;
	uint32_t		xs_blk_mapw;
	uint32_t		xs_blk_unmap;
	uint32_t		xs_add_exlist;
	uint32_t		xs_del_exlist;
	uint32_t		xs_look_exlist;
	uint32_t		xs_cmp_exlist;
# define XFSSTAT_END_BLOCK_MAP_BTREE	(XFSSTAT_END_BLOCK_MAPPING+4)
	uint32_t		xs_bmbt_lookup;
	uint32_t		xs_bmbt_compare;
	uint32_t		xs_bmbt_insrec;
	uint32_t		xs_bmbt_delrec;
# define XFSSTAT_END_DIRECTORY_OPS	(XFSSTAT_END_BLOCK_MAP_BTREE+4)
	uint32_t		xs_dir_lookup;
	uint32_t		xs_dir_create;
	uint32_t		xs_dir_remove;
	uint32_t		xs_dir_getdents;
# define XFSSTAT_END_TRANSACTIONS	(XFSSTAT_END_DIRECTORY_OPS+3)
	uint32_t		xs_trans_sync;
	uint32_t		xs_trans_async;
	uint32_t		xs_trans_empty;
# define XFSSTAT_END_INODE_OPS		(XFSSTAT_END_TRANSACTIONS+7)
	uint32_t		xs_ig_attempts;
	uint32_t		xs_ig_found;
	uint32_t		xs_ig_frecycle;
	uint32_t		xs_ig_missed;
	uint32_t		xs_ig_dup;
	uint32_t		xs_ig_reclaims;
	uint32_t		xs_ig_attrchg;
# define XFSSTAT_END_LOG_OPS		(XFSSTAT_END_INODE_OPS+5)
	uint32_t		xs_log_writes;
	uint32_t		xs_log_blocks;
	uint32_t		xs_log_noiclogs;
	uint32_t		xs_log_force;
	uint32_t		xs_log_force_sleep;
# define XFSSTAT_END_TAIL_PUSHING	(XFSSTAT_END_LOG_OPS+10)
	uint32_t		xs_try_logspace;
	uint32_t		xs_sleep_logspace;
	uint32_t		xs_push_ail;
	uint32_t		xs_push_ail_success;
	uint32_t		xs_push_ail_pushbuf;
	uint32_t		xs_push_ail_pinned;
	uint32_t		xs_push_ail_locked;
	uint32_t		xs_push_ail_flushing;
	uint32_t		xs_push_ail_restarts;
	uint32_t		xs_push_ail_flush;
# define XFSSTAT_END_WRITE_CONVERT	(XFSSTAT_END_TAIL_PUSHING+2)
	uint32_t		xs_xstrat_quick;
	uint32_t		xs_xstrat_split;
# define XFSSTAT_END_READ_WRITE_OPS	(XFSSTAT_END_WRITE_CONVERT+2)
	uint32_t		xs_write_calls;
	uint32_t		xs_read_calls;
# define XFSSTAT_END_ATTRIBUTE_OPS	(XFSSTAT_END_READ_WRITE_OPS+4)
	uint32_t		xs_attr_get;
	uint32_t		xs_attr_set;
	uint32_t		xs_attr_remove;
	uint32_t		xs_attr_list;
# define XFSSTAT_END_INODE_CLUSTER	(XFSSTAT_END_ATTRIBUTE_OPS+3)
	uint32_t		xs_iflush_count;
	uint32_t		xs_icluster_flushcnt;
	uint32_t		xs_icluster_flushinode;
# define XFSSTAT_END_VNODE_OPS		(XFSSTAT_END_INODE_CLUSTER+8)
	uint32_t		vn_active;	/* # vnodes not on free lists */
	uint32_t		vn_alloc;	/* # times vn_alloc called */
	uint32_t		vn_get;		/* # times vn_get called */
	uint32_t		vn_hold;	/* # times vn_hold called */
	uint32_t		vn_rele;	/* # times vn_rele called */
	uint32_t		vn_reclaim;	/* # times vn_reclaim called */
	uint32_t		vn_remove;	/* # times vn_remove called */
	uint32_t		vn_free;	/* # times vn_free called */
#define XFSSTAT_END_BUF			(XFSSTAT_END_VNODE_OPS+9)
	uint32_t		xb_get;
	uint32_t		xb_create;
	uint32_t		xb_get_locked;
	uint32_t		xb_get_locked_waited;
	uint32_t		xb_busy_locked;
	uint32_t		xb_miss_locked;
	uint32_t		xb_page_retries;
	uint32_t		xb_page_found;
	uint32_t		xb_get_read;
/* Version 2 btree counters */
#define XFSSTAT_END_ABTB_V2		(XFSSTAT_END_BUF + __XBTS_MAX)
	uint32_t		xs_abtb_2[__XBTS_MAX];
#define XFSSTAT_END_ABTC_V2		(XFSSTAT_END_ABTB_V2 + __XBTS_MAX)
	uint32_t		xs_abtc_2[__XBTS_MAX];
#define XFSSTAT_END_BMBT_V2		(XFSSTAT_END_ABTC_V2 + __XBTS_MAX)
	uint32_t		xs_bmbt_2[__XBTS_MAX];
#define XFSSTAT_END_IBT_V2		(XFSSTAT_END_BMBT_V2 + __XBTS_MAX)
	uint32_t		xs_ibt_2[__XBTS_MAX];
#define XFSSTAT_END_FIBT_V2		(XFSSTAT_END_IBT_V2 + __XBTS_MAX)
	uint32_t		xs_fibt_2[__XBTS_MAX];
#define XFSSTAT_END_RMAP_V2		(XFSSTAT_END_FIBT_V2 + __XBTS_MAX)
	uint32_t		xs_rmap_2[__XBTS_MAX];
#define XFSSTAT_END_REFCOUNT		(XFSSTAT_END_RMAP_V2 + __XBTS_MAX)
	uint32_t		xs_refcbt_2[__XBTS_MAX];
#define XFSSTAT_END_XQMSTAT		(XFSSTAT_END_REFCOUNT + 6)
	uint32_t		xs_qm_dqreclaims;
	uint32_t		xs_qm_dqreclaim_misses;
	uint32_t		xs_qm_dquot_dups;
	uint32_t		xs_qm_dqcachemisses;
	uint32_t		xs_qm_dqcachehits;
	uint32_t		xs_qm_dqwants;
#define XFSSTAT_END_QM			(XFSSTAT_END_XQMSTAT+2)
	uint32_t		xs_qm_dquot;
	uint32_t		xs_qm_dquot_unused;
/* Extra precision counters */
	uint64_t		xs_xstrat_bytes;
	uint64_t		xs_write_bytes;
	uint64_t		xs_read_bytes;
};

struct xfsstats {
	union {
		struct __xfsstats	s;
		uint32_t		a[XFSSTAT_END_XQMSTAT];
	};
};

/*
 * simple wrapper for getting the array index of s struct member offset
 */
#define XFS_STATS_CALC_INDEX(member)	\
	(offsetof(struct __xfsstats, member) / (int)sizeof(uint32_t))


int xfs_stats_format(struct xfsstats __percpu *stats, char *buf);
void xfs_stats_clearall(struct xfsstats __percpu *stats);
extern struct xstats xfsstats;

#define XFS_STATS_INC(mp, v)					\
do {								\
	per_cpu_ptr(xfsstats.xs_stats, current_cpu())->s.v++;	\
	per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->s.v++;	\
} while (0)

#define XFS_STATS_DEC(mp, v)					\
do {								\
	per_cpu_ptr(xfsstats.xs_stats, current_cpu())->s.v--;	\
	per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->s.v--;	\
} while (0)

#define XFS_STATS_ADD(mp, v, inc)					\
do {									\
	per_cpu_ptr(xfsstats.xs_stats, current_cpu())->s.v += (inc);	\
	per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->s.v += (inc);	\
} while (0)

#define XFS_STATS_INC_OFF(mp, off)				\
do {								\
	per_cpu_ptr(xfsstats.xs_stats, current_cpu())->a[off]++;	\
	per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->a[off]++;	\
} while (0)

#define XFS_STATS_DEC_OFF(mp, off)					\
do {								\
	per_cpu_ptr(xfsstats.xs_stats, current_cpu())->a[off];	\
	per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->a[off];	\
} while (0)

#define XFS_STATS_ADD_OFF(mp, off, inc)					\
do {									\
	per_cpu_ptr(xfsstats.xs_stats, current_cpu())->a[off] += (inc);	\
	per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->a[off] += (inc);	\
} while (0)

#if defined(CONFIG_PROC_FS)

extern int xfs_init_procfs(void);
extern void xfs_cleanup_procfs(void);


#else	/* !CONFIG_PROC_FS */

static inline int xfs_init_procfs(void)
{
	return 0;
}

static inline void xfs_cleanup_procfs(void)
{
}

#endif	/* !CONFIG_PROC_FS */

#endif /* __XFS_STATS_H__ */