xref: /openbmc/linux/fs/xfs/xfs_stats.h (revision 68198dca)
1 /*
2  * Copyright (c) 2000,2005 Silicon Graphics, Inc.
3  * All Rights Reserved.
4  *
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU General Public License as
7  * published by the Free Software Foundation.
8  *
9  * This program is distributed in the hope that it would be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write the Free Software Foundation,
16  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
17  */
18 #ifndef __XFS_STATS_H__
19 #define __XFS_STATS_H__
20 
21 
22 #include <linux/percpu.h>
23 
24 /*
25  * The btree stats arrays have fixed offsets for the different stats. We
26  * store the base index in the btree cursor via XFS_STATS_CALC_INDEX() and
27  * that allows us to use fixed offsets into the stats array for each btree
28  * stat. These index offsets are defined in the order they will be emitted
29  * in the stats files, so it is possible to add new btree stat types by
30  * appending to the enum list below.
31  */
32 enum {
33 	__XBTS_lookup = 0,
34 	__XBTS_compare = 1,
35 	__XBTS_insrec = 2,
36 	__XBTS_delrec = 3,
37 	__XBTS_newroot = 4,
38 	__XBTS_killroot = 5,
39 	__XBTS_increment = 6,
40 	__XBTS_decrement = 7,
41 	__XBTS_lshift = 8,
42 	__XBTS_rshift = 9,
43 	__XBTS_split = 10,
44 	__XBTS_join = 11,
45 	__XBTS_alloc = 12,
46 	__XBTS_free = 13,
47 	__XBTS_moves = 14,
48 
49 	__XBTS_MAX = 15,
50 };
51 
52 /*
53  * XFS global statistics
54  */
55 struct __xfsstats {
56 # define XFSSTAT_END_EXTENT_ALLOC	4
57 	uint32_t		xs_allocx;
58 	uint32_t		xs_allocb;
59 	uint32_t		xs_freex;
60 	uint32_t		xs_freeb;
61 # define XFSSTAT_END_ALLOC_BTREE	(XFSSTAT_END_EXTENT_ALLOC+4)
62 	uint32_t		xs_abt_lookup;
63 	uint32_t		xs_abt_compare;
64 	uint32_t		xs_abt_insrec;
65 	uint32_t		xs_abt_delrec;
66 # define XFSSTAT_END_BLOCK_MAPPING	(XFSSTAT_END_ALLOC_BTREE+7)
67 	uint32_t		xs_blk_mapr;
68 	uint32_t		xs_blk_mapw;
69 	uint32_t		xs_blk_unmap;
70 	uint32_t		xs_add_exlist;
71 	uint32_t		xs_del_exlist;
72 	uint32_t		xs_look_exlist;
73 	uint32_t		xs_cmp_exlist;
74 # define XFSSTAT_END_BLOCK_MAP_BTREE	(XFSSTAT_END_BLOCK_MAPPING+4)
75 	uint32_t		xs_bmbt_lookup;
76 	uint32_t		xs_bmbt_compare;
77 	uint32_t		xs_bmbt_insrec;
78 	uint32_t		xs_bmbt_delrec;
79 # define XFSSTAT_END_DIRECTORY_OPS	(XFSSTAT_END_BLOCK_MAP_BTREE+4)
80 	uint32_t		xs_dir_lookup;
81 	uint32_t		xs_dir_create;
82 	uint32_t		xs_dir_remove;
83 	uint32_t		xs_dir_getdents;
84 # define XFSSTAT_END_TRANSACTIONS	(XFSSTAT_END_DIRECTORY_OPS+3)
85 	uint32_t		xs_trans_sync;
86 	uint32_t		xs_trans_async;
87 	uint32_t		xs_trans_empty;
88 # define XFSSTAT_END_INODE_OPS		(XFSSTAT_END_TRANSACTIONS+7)
89 	uint32_t		xs_ig_attempts;
90 	uint32_t		xs_ig_found;
91 	uint32_t		xs_ig_frecycle;
92 	uint32_t		xs_ig_missed;
93 	uint32_t		xs_ig_dup;
94 	uint32_t		xs_ig_reclaims;
95 	uint32_t		xs_ig_attrchg;
96 # define XFSSTAT_END_LOG_OPS		(XFSSTAT_END_INODE_OPS+5)
97 	uint32_t		xs_log_writes;
98 	uint32_t		xs_log_blocks;
99 	uint32_t		xs_log_noiclogs;
100 	uint32_t		xs_log_force;
101 	uint32_t		xs_log_force_sleep;
102 # define XFSSTAT_END_TAIL_PUSHING	(XFSSTAT_END_LOG_OPS+10)
103 	uint32_t		xs_try_logspace;
104 	uint32_t		xs_sleep_logspace;
105 	uint32_t		xs_push_ail;
106 	uint32_t		xs_push_ail_success;
107 	uint32_t		xs_push_ail_pushbuf;
108 	uint32_t		xs_push_ail_pinned;
109 	uint32_t		xs_push_ail_locked;
110 	uint32_t		xs_push_ail_flushing;
111 	uint32_t		xs_push_ail_restarts;
112 	uint32_t		xs_push_ail_flush;
113 # define XFSSTAT_END_WRITE_CONVERT	(XFSSTAT_END_TAIL_PUSHING+2)
114 	uint32_t		xs_xstrat_quick;
115 	uint32_t		xs_xstrat_split;
116 # define XFSSTAT_END_READ_WRITE_OPS	(XFSSTAT_END_WRITE_CONVERT+2)
117 	uint32_t		xs_write_calls;
118 	uint32_t		xs_read_calls;
119 # define XFSSTAT_END_ATTRIBUTE_OPS	(XFSSTAT_END_READ_WRITE_OPS+4)
120 	uint32_t		xs_attr_get;
121 	uint32_t		xs_attr_set;
122 	uint32_t		xs_attr_remove;
123 	uint32_t		xs_attr_list;
124 # define XFSSTAT_END_INODE_CLUSTER	(XFSSTAT_END_ATTRIBUTE_OPS+3)
125 	uint32_t		xs_iflush_count;
126 	uint32_t		xs_icluster_flushcnt;
127 	uint32_t		xs_icluster_flushinode;
128 # define XFSSTAT_END_VNODE_OPS		(XFSSTAT_END_INODE_CLUSTER+8)
129 	uint32_t		vn_active;	/* # vnodes not on free lists */
130 	uint32_t		vn_alloc;	/* # times vn_alloc called */
131 	uint32_t		vn_get;		/* # times vn_get called */
132 	uint32_t		vn_hold;	/* # times vn_hold called */
133 	uint32_t		vn_rele;	/* # times vn_rele called */
134 	uint32_t		vn_reclaim;	/* # times vn_reclaim called */
135 	uint32_t		vn_remove;	/* # times vn_remove called */
136 	uint32_t		vn_free;	/* # times vn_free called */
137 #define XFSSTAT_END_BUF			(XFSSTAT_END_VNODE_OPS+9)
138 	uint32_t		xb_get;
139 	uint32_t		xb_create;
140 	uint32_t		xb_get_locked;
141 	uint32_t		xb_get_locked_waited;
142 	uint32_t		xb_busy_locked;
143 	uint32_t		xb_miss_locked;
144 	uint32_t		xb_page_retries;
145 	uint32_t		xb_page_found;
146 	uint32_t		xb_get_read;
147 /* Version 2 btree counters */
148 #define XFSSTAT_END_ABTB_V2		(XFSSTAT_END_BUF + __XBTS_MAX)
149 	uint32_t		xs_abtb_2[__XBTS_MAX];
150 #define XFSSTAT_END_ABTC_V2		(XFSSTAT_END_ABTB_V2 + __XBTS_MAX)
151 	uint32_t		xs_abtc_2[__XBTS_MAX];
152 #define XFSSTAT_END_BMBT_V2		(XFSSTAT_END_ABTC_V2 + __XBTS_MAX)
153 	uint32_t		xs_bmbt_2[__XBTS_MAX];
154 #define XFSSTAT_END_IBT_V2		(XFSSTAT_END_BMBT_V2 + __XBTS_MAX)
155 	uint32_t		xs_ibt_2[__XBTS_MAX];
156 #define XFSSTAT_END_FIBT_V2		(XFSSTAT_END_IBT_V2 + __XBTS_MAX)
157 	uint32_t		xs_fibt_2[__XBTS_MAX];
158 #define XFSSTAT_END_RMAP_V2		(XFSSTAT_END_FIBT_V2 + __XBTS_MAX)
159 	uint32_t		xs_rmap_2[__XBTS_MAX];
160 #define XFSSTAT_END_REFCOUNT		(XFSSTAT_END_RMAP_V2 + __XBTS_MAX)
161 	uint32_t		xs_refcbt_2[__XBTS_MAX];
162 #define XFSSTAT_END_XQMSTAT		(XFSSTAT_END_REFCOUNT + 6)
163 	uint32_t		xs_qm_dqreclaims;
164 	uint32_t		xs_qm_dqreclaim_misses;
165 	uint32_t		xs_qm_dquot_dups;
166 	uint32_t		xs_qm_dqcachemisses;
167 	uint32_t		xs_qm_dqcachehits;
168 	uint32_t		xs_qm_dqwants;
169 #define XFSSTAT_END_QM			(XFSSTAT_END_XQMSTAT+2)
170 	uint32_t		xs_qm_dquot;
171 	uint32_t		xs_qm_dquot_unused;
172 /* Extra precision counters */
173 	uint64_t		xs_xstrat_bytes;
174 	uint64_t		xs_write_bytes;
175 	uint64_t		xs_read_bytes;
176 };
177 
178 struct xfsstats {
179 	union {
180 		struct __xfsstats	s;
181 		uint32_t		a[XFSSTAT_END_XQMSTAT];
182 	};
183 };
184 
185 /*
186  * simple wrapper for getting the array index of s struct member offset
187  */
188 #define XFS_STATS_CALC_INDEX(member)	\
189 	(offsetof(struct __xfsstats, member) / (int)sizeof(uint32_t))
190 
191 
192 int xfs_stats_format(struct xfsstats __percpu *stats, char *buf);
193 void xfs_stats_clearall(struct xfsstats __percpu *stats);
194 extern struct xstats xfsstats;
195 
196 #define XFS_STATS_INC(mp, v)					\
197 do {								\
198 	per_cpu_ptr(xfsstats.xs_stats, current_cpu())->s.v++;	\
199 	per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->s.v++;	\
200 } while (0)
201 
202 #define XFS_STATS_DEC(mp, v)					\
203 do {								\
204 	per_cpu_ptr(xfsstats.xs_stats, current_cpu())->s.v--;	\
205 	per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->s.v--;	\
206 } while (0)
207 
208 #define XFS_STATS_ADD(mp, v, inc)					\
209 do {									\
210 	per_cpu_ptr(xfsstats.xs_stats, current_cpu())->s.v += (inc);	\
211 	per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->s.v += (inc);	\
212 } while (0)
213 
214 #define XFS_STATS_INC_OFF(mp, off)				\
215 do {								\
216 	per_cpu_ptr(xfsstats.xs_stats, current_cpu())->a[off]++;	\
217 	per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->a[off]++;	\
218 } while (0)
219 
220 #define XFS_STATS_DEC_OFF(mp, off)					\
221 do {								\
222 	per_cpu_ptr(xfsstats.xs_stats, current_cpu())->a[off];	\
223 	per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->a[off];	\
224 } while (0)
225 
226 #define XFS_STATS_ADD_OFF(mp, off, inc)					\
227 do {									\
228 	per_cpu_ptr(xfsstats.xs_stats, current_cpu())->a[off] += (inc);	\
229 	per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->a[off] += (inc);	\
230 } while (0)
231 
232 #if defined(CONFIG_PROC_FS)
233 
234 extern int xfs_init_procfs(void);
235 extern void xfs_cleanup_procfs(void);
236 
237 
238 #else	/* !CONFIG_PROC_FS */
239 
240 static inline int xfs_init_procfs(void)
241 {
242 	return 0;
243 }
244 
245 static inline void xfs_cleanup_procfs(void)
246 {
247 }
248 
249 #endif	/* !CONFIG_PROC_FS */
250 
251 #endif /* __XFS_STATS_H__ */
252