fs/xfs/xfs_stats.h

   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__ */