LU-10948 llite: Introduce inode open heat counter

[fs/lustre-release.git] / lustre / llite / llite_internal.h

diff --git a/lustre/llite/llite_internal.h b/lustre/llite/llite_internal.h
index 4f61255..a603033 100644 (file)
--- a/lustre/llite/llite_internal.h
+++ b/lustre/llite/llite_internal.h
@@ -133,6 +133,12 @@ struct ll_inode_info {
        __u64                           lli_open_fd_read_count;
        __u64                           lli_open_fd_write_count;
        __u64                           lli_open_fd_exec_count;
        __u64                           lli_open_fd_read_count;
        __u64                           lli_open_fd_write_count;
        __u64                           lli_open_fd_exec_count;

+
+       /* Number of times this inode was opened */
+       u64                             lli_open_fd_count;
+       /* When last close was performed on this inode */
+       ktime_t                         lli_close_fd_time;
+

        /* Protects access to och pointers and their usage counters */
        struct mutex                    lli_och_mutex;
 
        /* Protects access to och pointers and their usage counters */
        struct mutex                    lli_och_mutex;
 


@@ -760,6 +766,17 @@ struct ll_sb_info {
        unsigned int              ll_heat_decay_weight;
        unsigned int              ll_heat_period_second;
 
        unsigned int              ll_heat_decay_weight;
        unsigned int              ll_heat_period_second;
 

+       /* Opens of the same inode before we start requesting open lock */
+       u32                       ll_oc_thrsh_count;
+
+       /* Time in ms between last inode close and next open to be considered
+        * instant back to back and would trigger an open lock request
+        */
+       u32                       ll_oc_thrsh_ms;
+
+       /* Time in ms after last file close that we no longer count prior opens*/
+       u32                       ll_oc_max_ms;
+

        /* filesystem fsname */
        char                      ll_fsname[LUSTRE_MAXFSNAME + 1];
 
        /* filesystem fsname */
        char                      ll_fsname[LUSTRE_MAXFSNAME + 1];
 


@@ -782,6 +799,11 @@ struct ll_sb_info {
 
 #define SBI_DEFAULT_HEAT_DECAY_WEIGHT  ((80 * 256 + 50) / 100)
 #define SBI_DEFAULT_HEAT_PERIOD_SECOND (60)
 
 #define SBI_DEFAULT_HEAT_DECAY_WEIGHT  ((80 * 256 + 50) / 100)
 #define SBI_DEFAULT_HEAT_PERIOD_SECOND (60)

+
+#define SBI_DEFAULT_OPENCACHE_THRESHOLD_COUNT  (5)
+#define SBI_DEFAULT_OPENCACHE_THRESHOLD_MS     (100) /* 0.1 second */
+#define SBI_DEFAULT_OPENCACHE_THRESHOLD_MAX_MS (60000) /* 1 minute */
+

 /*
  * per file-descriptor read-ahead data.
  */
 /*
  * per file-descriptor read-ahead data.
  */


@@ -1015,6 +1037,8 @@ enum {
        LPROC_LL_REMOVEXATTR,
        LPROC_LL_INODE_PERM,
        LPROC_LL_FALLOCATE,
        LPROC_LL_REMOVEXATTR,
        LPROC_LL_INODE_PERM,
        LPROC_LL_FALLOCATE,

+       LPROC_LL_INODE_OCOUNT,
+       LPROC_LL_INODE_OPCLTM,

        LPROC_LL_FILE_OPCODES
 };
 
        LPROC_LL_FILE_OPCODES
 };
 


@@ -1081,6 +1105,7 @@ int ll_file_open(struct inode *inode, struct file *file);
 int ll_file_release(struct inode *inode, struct file *file);
 int ll_release_openhandle(struct dentry *, struct lookup_intent *);
 int ll_md_real_close(struct inode *inode, fmode_t fmode);
 int ll_file_release(struct inode *inode, struct file *file);
 int ll_release_openhandle(struct dentry *, struct lookup_intent *);
 int ll_md_real_close(struct inode *inode, fmode_t fmode);

+void ll_track_file_opens(struct inode *inode);

 extern void ll_rw_stats_tally(struct ll_sb_info *sbi, pid_t pid,
                               struct ll_file_data *file, loff_t pos,
                               size_t count, int rw);
 extern void ll_rw_stats_tally(struct ll_sb_info *sbi, pid_t pid,
                               struct ll_file_data *file, loff_t pos,
                               size_t count, int rw);