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MySQL 9.1 Reference Manual

29.12.1 Performance Schema Table Reference

The following table summarizes all available Performance Schema tables. For greater detail, see the individual table descriptions.

Table 29.1 Performance Schema Tables

Table Name	Description
`accounts`	Connection statistics per client account
`binary_log_transaction_compression_stats`	Binary log transaction compression
`clone_progress`	Clone operation progress
`clone_status`	Clone operation status
`component_scheduler_tasks`	Status of scheduled tasks
`cond_instances`	Synchronization object instances
`data_lock_waits`	Data lock wait relationships
`data_locks`	Data locks held and requested
`error_log`	Server error log recent entries
`events_errors_summary_by_account_by_error`	Errors per account and error code
`events_errors_summary_by_host_by_error`	Errors per host and error code
`events_errors_summary_by_thread_by_error`	Errors per thread and error code
`events_errors_summary_by_user_by_error`	Errors per user and error code
`events_errors_summary_global_by_error`	Errors per error code
`events_stages_current`	Current stage events
`events_stages_history`	Most recent stage events per thread
`events_stages_history_long`	Most recent stage events overall
`events_stages_summary_by_account_by_event_name`	Stage events per account and event name
`events_stages_summary_by_host_by_event_name`	Stage events per host name and event name
`events_stages_summary_by_thread_by_event_name`	Stage waits per thread and event name
`events_stages_summary_by_user_by_event_name`	Stage events per user name and event name
`events_stages_summary_global_by_event_name`	Stage waits per event name
`events_statements_current`	Current statement events
`events_statements_histogram_by_digest`	Statement histograms per schema and digest value
`events_statements_histogram_global`	Statement histogram summarized globally
`events_statements_history`	Most recent statement events per thread
`events_statements_history_long`	Most recent statement events overall
`events_statements_summary_by_account_by_event_name`	Statement events per account and event name
`events_statements_summary_by_digest`	Statement events per schema and digest value
`events_statements_summary_by_host_by_event_name`	Statement events per host name and event name
`events_statements_summary_by_program`	Statement events per stored program
`events_statements_summary_by_thread_by_event_name`	Statement events per thread and event name
`events_statements_summary_by_user_by_event_name`	Statement events per user name and event name
`events_statements_summary_global_by_event_name`	Statement events per event name
`events_transactions_current`	Current transaction events
`events_transactions_history`	Most recent transaction events per thread
`events_transactions_history_long`	Most recent transaction events overall
`events_transactions_summary_by_account_by_event_name`	Transaction events per account and event name
`events_transactions_summary_by_host_by_event_name`	Transaction events per host name and event name
`events_transactions_summary_by_thread_by_event_name`	Transaction events per thread and event name
`events_transactions_summary_by_user_by_event_name`	Transaction events per user name and event name
`events_transactions_summary_global_by_event_name`	Transaction events per event name
`events_waits_current`	Current wait events
`events_waits_history`	Most recent wait events per thread
`events_waits_history_long`	Most recent wait events overall
`events_waits_summary_by_account_by_event_name`	Wait events per account and event name
`events_waits_summary_by_host_by_event_name`	Wait events per host name and event name
`events_waits_summary_by_instance`	Wait events per instance
`events_waits_summary_by_thread_by_event_name`	Wait events per thread and event name
`events_waits_summary_by_user_by_event_name`	Wait events per user name and event name
`events_waits_summary_global_by_event_name`	Wait events per event name
`file_instances`	File instances
`file_summary_by_event_name`	File events per event name
`file_summary_by_instance`	File events per file instance
`firewall_group_allowlist`	Firewall in-memory data for group profile allowlists
`firewall_groups`	Firewall in-memory data for group profiles
`firewall_membership`	Firewall in-memory data for group profile members
`global_status`	Global status variables
`global_variable_attributes`	Attribute-value pairs assigned to global variables
`global_variables`	Global system variables
`host_cache`	Information from internal host cache
`hosts`	Connection statistics per client host name
`keyring_component_status`	Status information for installed keyring component
`keyring_keys`	Metadata for keyring keys
`log_status`	Information about server logs for backup purposes
`memory_summary_by_account_by_event_name`	Memory operations per account and event name
`memory_summary_by_host_by_event_name`	Memory operations per host and event name
`memory_summary_by_thread_by_event_name`	Memory operations per thread and event name
`memory_summary_by_user_by_event_name`	Memory operations per user and event name
`memory_summary_global_by_event_name`	Memory operations globally per event name
`metadata_locks`	Metadata locks and lock requests
`mutex_instances`	Mutex synchronization object instances
`mysql_option`	Features known to Option tracker in MySQL server, components, and plugins
`ndb_replication_applier_status`	NDB replication applier status information for each replication channel
`ndb_sync_excluded_objects`	NDB objects which cannot be synchronized
`ndb_sync_pending_objects`	NDB objects waiting for synchronization
`objects_summary_global_by_type`	Object summaries
`performance_timers`	Which event timers are available
`persisted_variables`	Contents of mysqld-auto.cnf file
`prepared_statements_instances`	Prepared statement instances and statistics
`processlist`	Process list information
`replication_applier_configuration`	Configuration parameters for replication applier on replica
`replication_applier_filters`	Channel-specific replication filters on current replica
`replication_applier_global_filters`	Global replication filters on current replica
`replication_applier_status`	Current status of replication applier on replica
`replication_applier_status_by_coordinator`	SQL or coordinator thread applier status
`replication_applier_status_by_worker`	Worker thread applier status
`replication_asynchronous_connection_failover`	Source lists for asynchronous connection failover mechanism
`replication_asynchronous_connection_failover_managed`	Managed source lists for asynchronous connection failover mechanism
`replication_connection_configuration`	Configuration parameters for connecting to source
`replication_connection_status`	Current status of connection to source
`replication_group_communication_information`	Replication group configuration options
`replication_group_member_stats`	Replication group member statistics
`replication_group_members`	Replication group member network and status
`rwlock_instances`	Lock synchronization object instances
`session_account_connect_attrs`	Connection attributes per for current session
`session_connect_attrs`	Connection attributes for all sessions
`session_status`	Status variables for current session
`session_variables`	System variables for current session
`setup_actors`	How to initialize monitoring for new foreground threads
`setup_consumers`	Consumers for which event information can be stored
`setup_instruments`	Classes of instrumented objects for which events can be collected
`setup_objects`	Which objects should be monitored
`setup_threads`	Instrumented thread names and attributes
`socket_instances`	Active connection instances
`socket_summary_by_event_name`	Socket waits and I/O per event name
`socket_summary_by_instance`	Socket waits and I/O per instance
`status_by_account`	Session status variables per account
`status_by_host`	Session status variables per host name
`status_by_thread`	Session status variables per session
`status_by_user`	Session status variables per user name
`table_handles`	Table locks and lock requests
`table_io_waits_summary_by_index_usage`	Table I/O waits per index
`table_io_waits_summary_by_table`	Table I/O waits per table
`table_lock_waits_summary_by_table`	Table lock waits per table
`threads`	Information about server threads
`tls_channel_status`	TLS status for each connection interface
`tp_thread_group_state`	Thread pool thread group states
`tp_thread_group_stats`	Thread pool thread group statistics
`tp_thread_state`	Thread pool thread information
`user_defined_functions`	Registered loadable functions
`user_variables_by_thread`	User-defined variables per thread
`users`	Connection statistics per client user name
`variables_by_thread`	Session system variables per session
`variables_info`	How system variables were most recently set
`variables_metadata`	System variable metadata, including scope, type, range, and description

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