TokuDB Performance Schema Integration TokuDB Performance Schema Integration¶
TokuDB is integrated with Performance Schema
This integration can be used for profiling additional TokuDB operations.
TokuDB instruments available in Performance Schema can be seen in
PERFORMANCE_SCHEMA.SETUP_INSTRUMENTS table:
mysql> SELECT * FROM performance_schema.setup_instruments WHERE NAME LIKE "%/fti/%";
+------------------------------------------------------------+---------+-------+
| NAME | ENABLED | TIMED |
+------------------------------------------------------------+---------+-------+
| wait/synch/mutex/fti/kibbutz_mutex | NO | NO |
| wait/synch/mutex/fti/minicron_p_mutex | NO | NO |
| wait/synch/mutex/fti/queue_result_mutex | NO | NO |
| wait/synch/mutex/fti/tpool_lock_mutex | NO | NO |
| wait/synch/mutex/fti/workset_lock_mutex | NO | NO |
| wait/synch/mutex/fti/bjm_jobs_lock_mutex | NO | NO |
| wait/synch/mutex/fti/log_internal_lock_mutex | NO | NO |
| wait/synch/mutex/fti/cachetable_ev_thread_lock_mutex | NO | NO |
| wait/synch/mutex/fti/cachetable_disk_nb_mutex | NO | NO |
| wait/synch/mutex/fti/safe_file_size_lock_mutex | NO | NO |
| wait/synch/mutex/fti/cachetable_m_mutex_key | NO | NO |
| wait/synch/mutex/fti/checkpoint_safe_mutex | NO | NO |
| wait/synch/mutex/fti/ft_ref_lock_mutex | NO | NO |
| wait/synch/mutex/fti/ft_open_close_lock_mutex | NO | NO |
| wait/synch/mutex/fti/loader_error_mutex | NO | NO |
| wait/synch/mutex/fti/bfs_mutex | NO | NO |
| wait/synch/mutex/fti/loader_bl_mutex | NO | NO |
| wait/synch/mutex/fti/loader_fi_lock_mutex | NO | NO |
| wait/synch/mutex/fti/loader_out_mutex | NO | NO |
| wait/synch/mutex/fti/result_output_condition_lock_mutex | NO | NO |
| wait/synch/mutex/fti/block_table_mutex | NO | NO |
| wait/synch/mutex/fti/rollback_log_node_cache_mutex | NO | NO |
| wait/synch/mutex/fti/txn_lock_mutex | NO | NO |
| wait/synch/mutex/fti/txn_state_lock_mutex | NO | NO |
| wait/synch/mutex/fti/txn_child_manager_mutex | NO | NO |
| wait/synch/mutex/fti/txn_manager_lock_mutex | NO | NO |
| wait/synch/mutex/fti/treenode_mutex | NO | NO |
| wait/synch/mutex/fti/locktree_request_info_mutex | NO | NO |
| wait/synch/mutex/fti/locktree_request_info_retry_mutex_key | NO | NO |
| wait/synch/mutex/fti/manager_mutex | NO | NO |
| wait/synch/mutex/fti/manager_escalation_mutex | NO | NO |
| wait/synch/mutex/fti/db_txn_struct_i_txn_mutex | NO | NO |
| wait/synch/mutex/fti/manager_escalator_mutex | NO | NO |
| wait/synch/mutex/fti/indexer_i_indexer_lock_mutex | NO | NO |
| wait/synch/mutex/fti/indexer_i_indexer_estimate_lock_mutex | NO | NO |
| wait/synch/mutex/fti/fti_probe_1 | NO | NO |
| wait/synch/rwlock/fti/multi_operation_lock | NO | NO |
| wait/synch/rwlock/fti/low_priority_multi_operation_lock | NO | NO |
| wait/synch/rwlock/fti/cachetable_m_list_lock | NO | NO |
| wait/synch/rwlock/fti/cachetable_m_pending_lock_expensive | NO | NO |
| wait/synch/rwlock/fti/cachetable_m_pending_lock_cheap | NO | NO |
| wait/synch/rwlock/fti/cachetable_m_lock | NO | NO |
| wait/synch/rwlock/fti/result_i_open_dbs_rwlock | NO | NO |
| wait/synch/rwlock/fti/checkpoint_safe_rwlock | NO | NO |
| wait/synch/rwlock/fti/cachetable_value | NO | NO |
| wait/synch/rwlock/fti/safe_file_size_lock_rwlock | NO | NO |
| wait/synch/rwlock/fti/cachetable_disk_nb_rwlock | NO | NO |
| wait/synch/cond/fti/result_state_cond | NO | NO |
| wait/synch/cond/fti/bjm_jobs_wait | NO | NO |
| wait/synch/cond/fti/cachetable_p_refcount_wait | NO | NO |
| wait/synch/cond/fti/cachetable_m_flow_control_cond | NO | NO |
| wait/synch/cond/fti/cachetable_m_ev_thread_cond | NO | NO |
| wait/synch/cond/fti/bfs_cond | NO | NO |
| wait/synch/cond/fti/result_output_condition | NO | NO |
| wait/synch/cond/fti/manager_m_escalator_done | NO | NO |
| wait/synch/cond/fti/lock_request_m_wait_cond | NO | NO |
| wait/synch/cond/fti/queue_result_cond | NO | NO |
| wait/synch/cond/fti/ws_worker_wait | NO | NO |
| wait/synch/cond/fti/rwlock_wait_read | NO | NO |
| wait/synch/cond/fti/rwlock_wait_write | NO | NO |
| wait/synch/cond/fti/rwlock_cond | NO | NO |
| wait/synch/cond/fti/tp_thread_wait | NO | NO |
| wait/synch/cond/fti/tp_pool_wait_free | NO | NO |
| wait/synch/cond/fti/frwlock_m_wait_read | NO | NO |
| wait/synch/cond/fti/kibbutz_k_cond | NO | NO |
| wait/synch/cond/fti/minicron_p_condvar | NO | NO |
| wait/synch/cond/fti/locktree_request_info_retry_cv_key | NO | NO |
| wait/io/file/fti/tokudb_data_file | YES | YES |
| wait/io/file/fti/tokudb_load_file | YES | YES |
| wait/io/file/fti/tokudb_tmp_file | YES | YES |
| wait/io/file/fti/tokudb_log_file | YES | YES |
+------------------------------------------------------------+---------+-------+
For TokuDB-related objects, following clauses can be used when querying Performance Schema tables:
WHERE EVENT_NAME LIKE '%fti%'orWHERE NAME LIKE '%fti%'
For example, to get the information about TokuDB related events you can query
PERFORMANCE_SCHEMA.events_waits_summary_global_by_event_name like:
mysql> SELECT * FROM performance_schema.events_waits_summary_global_by_event_name WHERE EVENT_NAME LIKE '%fti%';
+-----------------------------------------+------------+----------------+----------------+----------------+----------------+
| EVENT_NAME | COUNT_STAR | SUM_TIMER_WAIT | MIN_TIMER_WAIT | AVG_TIMER_WAIT | MAX_TIMER_WAIT |
+-----------------------------------------+------------+----------------+----------------+----------------+----------------+
| wait/synch/mutex/fti/kibbutz_mutex | 0 | 0 | 0 | 0 | 0 |
| wait/synch/mutex/fti/minicron_p_mutex | 0 | 0 | 0 | 0 | 0 |
| wait/synch/mutex/fti/queue_result_mutex | 0 | 0 | 0 | 0 | 0 |
| wait/synch/mutex/fti/tpool_lock_mutex | 0 | 0 | 0 | 0 | 0 |
| wait/synch/mutex/fti/workset_lock_mutex | 0 | 0 | 0 | 0 | 0 |
...
| wait/io/file/fti/tokudb_data_file | 30 | 179862410 | 0 | 5995080 | 68488420 |
| wait/io/file/fti/tokudb_load_file | 0 | 0 | 0 | 0 | 0 |
| wait/io/file/fti/tokudb_tmp_file | 0 | 0 | 0 | 0 | 0 |
| wait/io/file/fti/tokudb_log_file | 1367 | 2925647870145 | 0 | 2140195785 | 12013357720 |
+-----------------------------------------+------------+----------------+----------------+----------------+----------------+
71 rows in set (0.02 sec)
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