### 27.12.1 Performance Schema Table Reference

[]()[]()

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

[]()

**Table 27.1 Performance Schema Tables**

|                                                                        Table Name                                                                         |                            Description                            |Introduced|
|-----------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------|----------|
|                                                   [`accounts`](performance-schema-accounts-table.html)                                                    |             Connection statistics per client account              |          |
|                   [`binary_log_transaction_compression_stats`](performance-schema-binary-log-transaction-compression-stats-table.html)                    |                Binary log transaction compression                 |  8.0.20  |
|                                             [`clone_progress`](performance-schema-clone-progress-table.html)                                              |                     Clone operation progress                      |  8.0.17  |
|                                               [`clone_status`](performance-schema-clone-status-table.html)                                                |                      Clone operation status                       |  8.0.17  |
|                                             [`cond_instances`](performance-schema-cond-instances-table.html)                                              |                 Synchronization object instances                  |          |
|                                            [`data_lock_waits`](performance-schema-data-lock-waits-table.html)                                             |                   Data lock wait relationships                    |          |
|                                                 [`data_locks`](performance-schema-data-locks-table.html)                                                  |                   Data locks held and requested                   |          |
|                                                  [`error_log`](performance-schema-error-log-table.html)                                                   |                  Server error log recent entries                  |  8.0.22  |
|                                [`events_errors_summary_by_account_by_error`](performance-schema-error-summary-tables.html)                                |                 Errors per account and error code                 |          |
|                                 [`events_errors_summary_by_host_by_error`](performance-schema-error-summary-tables.html)                                  |                  Errors per host and error code                   |          |
|                                [`events_errors_summary_by_thread_by_error`](performance-schema-error-summary-tables.html)                                 |                 Errors per thread and error code                  |          |
|                                 [`events_errors_summary_by_user_by_error`](performance-schema-error-summary-tables.html)                                  |                  Errors per user and error code                   |          |
|                                  [`events_errors_summary_global_by_error`](performance-schema-error-summary-tables.html)                                  |                       Errors per error code                       |          |
|                                      [`events_stages_current`](performance-schema-events-stages-current-table.html)                                       |                       Current stage events                        |          |
|                                      [`events_stages_history`](performance-schema-events-stages-history-table.html)                                       |                Most recent stage events per thread                |          |
|                                 [`events_stages_history_long`](performance-schema-events-stages-history-long-table.html)                                  |                 Most recent stage events overall                  |          |
|                             [`events_stages_summary_by_account_by_event_name`](performance-schema-stage-summary-tables.html)                              |              Stage events per account and event name              |          |
|                               [`events_stages_summary_by_host_by_event_name`](performance-schema-stage-summary-tables.html)                               |             Stage events per host name and event name             |          |
|                              [`events_stages_summary_by_thread_by_event_name`](performance-schema-stage-summary-tables.html)                              |               Stage waits per thread and event name               |          |
|                               [`events_stages_summary_by_user_by_event_name`](performance-schema-stage-summary-tables.html)                               |             Stage events per user name and event name             |          |
|                               [`events_stages_summary_global_by_event_name`](performance-schema-stage-summary-tables.html)                                |                    Stage waits per event name                     |          |
|                                  [`events_statements_current`](performance-schema-events-statements-current-table.html)                                   |                     Current statement events                      |          |
|                           [`events_statements_histogram_by_digest`](performance-schema-statement-histogram-summary-tables.html)                           |         Statement histograms per schema and digest value          |          |
|                            [`events_statements_histogram_global`](performance-schema-statement-histogram-summary-tables.html)                             |              Statement histogram summarized globally              |          |
|                                  [`events_statements_history`](performance-schema-events-statements-history-table.html)                                   |              Most recent statement events per thread              |          |
|                             [`events_statements_history_long`](performance-schema-events-statements-history-long-table.html)                              |               Most recent statement events overall                |          |
|                         [`events_statements_summary_by_account_by_event_name`](performance-schema-statement-summary-tables.html)                          |            Statement events per account and event name            |          |
|                                 [`events_statements_summary_by_digest`](performance-schema-statement-summary-tables.html)                                 |           Statement events per schema and digest value            |          |
|                           [`events_statements_summary_by_host_by_event_name`](performance-schema-statement-summary-tables.html)                           |           Statement events per host name and event name           |          |
|                                [`events_statements_summary_by_program`](performance-schema-statement-summary-tables.html)                                 |                Statement events per stored program                |          |
|                          [`events_statements_summary_by_thread_by_event_name`](performance-schema-statement-summary-tables.html)                          |            Statement events per thread and event name             |          |
|                           [`events_statements_summary_by_user_by_event_name`](performance-schema-statement-summary-tables.html)                           |           Statement events per user name and event name           |          |
|                           [`events_statements_summary_global_by_event_name`](performance-schema-statement-summary-tables.html)                            |                  Statement events per event name                  |          |
|                                [`events_transactions_current`](performance-schema-events-transactions-current-table.html)                                 |                    Current transaction events                     |          |
|                                [`events_transactions_history`](performance-schema-events-transactions-history-table.html)                                 |             Most recent transaction events per thread             |          |
|                           [`events_transactions_history_long`](performance-schema-events-transactions-history-long-table.html)                            |              Most recent transaction events overall               |          |
|                       [`events_transactions_summary_by_account_by_event_name`](performance-schema-transaction-summary-tables.html)                        |           Transaction events per account and event name           |          |
|                         [`events_transactions_summary_by_host_by_event_name`](performance-schema-transaction-summary-tables.html)                         |          Transaction events per host name and event name          |          |
|                        [`events_transactions_summary_by_thread_by_event_name`](performance-schema-transaction-summary-tables.html)                        |           Transaction events per thread and event name            |          |
|                         [`events_transactions_summary_by_user_by_event_name`](performance-schema-transaction-summary-tables.html)                         |          Transaction events per user name and event name          |          |
|                         [`events_transactions_summary_global_by_event_name`](performance-schema-transaction-summary-tables.html)                          |                 Transaction events per event name                 |          |
|                                       [`events_waits_current`](performance-schema-events-waits-current-table.html)                                        |                        Current wait events                        |          |
|                                       [`events_waits_history`](performance-schema-events-waits-history-table.html)                                        |                Most recent wait events per thread                 |          |
|                                  [`events_waits_history_long`](performance-schema-events-waits-history-long-table.html)                                   |                  Most recent wait events overall                  |          |
|                              [`events_waits_summary_by_account_by_event_name`](performance-schema-wait-summary-tables.html)                               |              Wait events per account and event name               |          |
|                                [`events_waits_summary_by_host_by_event_name`](performance-schema-wait-summary-tables.html)                                |             Wait events per host name and event name              |          |
|                                     [`events_waits_summary_by_instance`](performance-schema-wait-summary-tables.html)                                     |                     Wait events per instance                      |          |
|                               [`events_waits_summary_by_thread_by_event_name`](performance-schema-wait-summary-tables.html)                               |               Wait events per thread and event name               |          |
|                                [`events_waits_summary_by_user_by_event_name`](performance-schema-wait-summary-tables.html)                                |             Wait events per user name and event name              |          |
|                                [`events_waits_summary_global_by_event_name`](performance-schema-wait-summary-tables.html)                                 |                    Wait events per event name                     |          |
|                                             [`file_instances`](performance-schema-file-instances-table.html)                                              |                          File instances                           |          |
|                                        [`file_summary_by_event_name`](performance-schema-file-summary-tables.html)                                        |                    File events per event name                     |          |
|                                         [`file_summary_by_instance`](performance-schema-file-summary-tables.html)                                         |                   File events per file instance                   |          |
|                                   [`firewall_group_allowlist`](performance-schema-firewall-group-allowlist-table.html)                                    |       Firewall in-memory data for group profile allowlists        |  8.0.23  |
|                                            [`firewall_groups`](performance-schema-firewall-groups-table.html)                                             |            Firewall in-memory data for group profiles             |  8.0.23  |
|                                        [`firewall_membership`](performance-schema-firewall-membership-table.html)                                         |         Firewall in-memory data for group profile members         |  8.0.23  |
|                                             [`global_status`](performance-schema-status-variable-tables.html)                                             |                      Global status variables                      |          |
|                                           [`global_variables`](performance-schema-system-variable-tables.html)                                            |                      Global system variables                      |          |
|                                                 [`host_cache`](performance-schema-host-cache-table.html)                                                  |               Information from internal host cache                |          |
|                                                      [`hosts`](performance-schema-hosts-table.html)                                                       |            Connection statistics per client host name             |          |
|                                   [`keyring_component_status`](performance-schema-keyring-component-status-table.html)                                    |        Status information for installed keyring component         |  8.0.24  |
|                                               [`keyring_keys`](performance-schema-keyring-keys-table.html)                                                |                     Metadata for keyring keys                     |  8.0.16  |
|                                                 [`log_status`](performance-schema-log-status-table.html)                                                  |         Information about server logs for backup purposes         |          |
|                                [`memory_summary_by_account_by_event_name`](performance-schema-memory-summary-tables.html)                                 |           Memory operations per account and event name            |          |
|                                  [`memory_summary_by_host_by_event_name`](performance-schema-memory-summary-tables.html)                                  |             Memory operations per host and event name             |          |
|                                 [`memory_summary_by_thread_by_event_name`](performance-schema-memory-summary-tables.html)                                 |            Memory operations per thread and event name            |          |
|                                  [`memory_summary_by_user_by_event_name`](performance-schema-memory-summary-tables.html)                                  |             Memory operations per user and event name             |          |
|                                  [`memory_summary_global_by_event_name`](performance-schema-memory-summary-tables.html)                                   |             Memory operations globally per event name             |          |
|                                             [`metadata_locks`](performance-schema-metadata-locks-table.html)                                              |                 Metadata locks and lock requests                  |          |
|                                            [`mutex_instances`](performance-schema-mutex-instances-table.html)                                             |              Mutex synchronization object instances               |          |
|                                  [`ndb_sync_excluded_objects`](performance-schema-ndb-sync-excluded-objects-table.html)                                   |             NDB objects which cannot be synchronized              |  8.0.21  |
|                                   [`ndb_sync_pending_objects`](performance-schema-ndb-sync-pending-objects-table.html)                                    |              NDB objects waiting for synchronization              |  8.0.21  |
|                             [`objects_summary_global_by_type`](performance-schema-objects-summary-global-by-type-table.html)                              |                         Object summaries                          |          |
|                                         [`performance_timers`](performance-schema-performance-timers-table.html)                                          |                 Which event timers are available                  |          |
|                                          [`persisted_variables`](performance-schema-system-variable-tables.html)                                          |                 Contents of mysqld-auto.cnf file                  |          |
|                              [`prepared_statements_instances`](performance-schema-prepared-statements-instances-table.html)                               |            Prepared statement instances and statistics            |          |
|                                                [`processlist`](performance-schema-processlist-table.html)                                                 |                     Process list information                      |  8.0.22  |
|                          [`replication_applier_configuration`](performance-schema-replication-applier-configuration-table.html)                           |    Configuration parameters for replication applier on replica    |          |
|                                [`replication_applier_filters`](performance-schema-replication-applier-filters-table.html)                                 |      Channel-specific replication filters on current replica      |          |
|                         [`replication_applier_global_filters`](performance-schema-replication-applier-global-filters-table.html)                          |           Global replication filters on current replica           |          |
|                                 [`replication_applier_status`](performance-schema-replication-applier-status-table.html)                                  |         Current status of replication applier on replica          |          |
|                  [`replication_applier_status_by_coordinator`](performance-schema-replication-applier-status-by-coordinator-table.html)                   |             SQL or coordinator thread applier status              |          |
|                       [`replication_applier_status_by_worker`](performance-schema-replication-applier-status-by-worker-table.html)                        |                   Worker thread applier status                    |          |
|               [`replication_asynchronous_connection_failover`](performance-schema-replication-asynchronous-connection-failover-table.html)                |    Source lists for asynchronous connection failover mechanism    |  8.0.22  |
|       [`replication_asynchronous_connection_failover_managed`](performance-schema-replication-asynchronous-connection-failover-managed-table.html)        |Managed source lists for asynchronous connection failover mechanism|  8.0.23  |
|                       [`replication_connection_configuration`](performance-schema-replication-connection-configuration-table.html)                        |         Configuration parameters for connecting to source         |          |
|                              [`replication_connection_status`](performance-schema-replication-connection-status-table.html)                               |              Current status of connection to source               |          |
|                             [`replication_group_member_stats`](performance-schema-replication-group-member-stats-table.html)                              |                Replication group member statistics                |          |
|                                  [`replication_group_members`](performance-schema-replication-group-members-table.html)                                   |            Replication group member network and status            |          |
|                                           [`rwlock_instances`](performance-schema-rwlock-instances-table.html)                                            |               Lock synchronization object instances               |          |
|                              [`session_account_connect_attrs`](performance-schema-session-account-connect-attrs-table.html)                               |           Connection attributes per for current session           |          |
|                                      [`session_connect_attrs`](performance-schema-session-connect-attrs-table.html)                                       |              Connection attributes for all sessions               |          |
|                                            [`session_status`](performance-schema-status-variable-tables.html)                                             |               Status variables for current session                |          |
|                                           [`session_variables`](performance-schema-system-variable-tables.html)                                           |               System variables for current session                |          |
|                                               [`setup_actors`](performance-schema-setup-actors-table.html)                                                |      How to initialize monitoring for new foreground threads      |          |
|                                            [`setup_consumers`](performance-schema-setup-consumers-table.html)                                             |        Consumers for which event information can be stored        |          |
|                                          [`setup_instruments`](performance-schema-setup-instruments-table.html)                                           | Classes of instrumented objects for which events can be collected |          |
|                                              [`setup_objects`](performance-schema-setup-objects-table.html)                                               |                 Which objects should be monitored                 |          |
|                                              [`setup_threads`](performance-schema-setup-threads-table.html)                                               |             Instrumented thread names and attributes              |          |
|                                           [`socket_instances`](performance-schema-socket-instances-table.html)                                            |                    Active connection instances                    |          |
|                                      [`socket_summary_by_event_name`](performance-schema-socket-summary-tables.html)                                      |                Socket waits and I/O per event name                |          |
|                                       [`socket_summary_by_instance`](performance-schema-socket-summary-tables.html)                                       |                 Socket waits and I/O per instance                 |          |
|                                       [`status_by_account`](performance-schema-status-variable-summary-tables.html)                                       |               Session status variables per account                |          |
|                                        [`status_by_host`](performance-schema-status-variable-summary-tables.html)                                         |              Session status variables per host name               |          |
|                                           [`status_by_thread`](performance-schema-status-variable-tables.html)                                            |               Session status variables per session                |          |
|                                        [`status_by_user`](performance-schema-status-variable-summary-tables.html)                                         |              Session status variables per user name               |          |
|                                              [`table_handles`](performance-schema-table-handles-table.html)                                               |                   Table locks and lock requests                   |          |
|[`table_io_waits_summary_by_index_usage`](performance-schema-table-wait-summary-tables.html#performance-schema-table-io-waits-summary-by-index-usage-table)|                     Table I/O waits per index                     |          |
|      [`table_io_waits_summary_by_table`](performance-schema-table-wait-summary-tables.html#performance-schema-table-io-waits-summary-by-table-table)      |                     Table I/O waits per table                     |          |
|    [`table_lock_waits_summary_by_table`](performance-schema-table-wait-summary-tables.html#performance-schema-table-lock-waits-summary-by-table-table)    |                    Table lock waits per table                     |          |
|                                                    [`threads`](performance-schema-threads-table.html)                                                     |                 Information about server threads                  |          |
|                                         [`tls_channel_status`](performance-schema-tls-channel-status-table.html)                                          |             TLS status for each connection interface              |  8.0.21  |
|                                      [`tp_thread_group_state`](performance-schema-tp-thread-group-state-table.html)                                       |                  Thread pool thread group states                  |  8.0.14  |
|                                      [`tp_thread_group_stats`](performance-schema-tp-thread-group-stats-table.html)                                       |                Thread pool thread group statistics                |  8.0.14  |
|                                            [`tp_thread_state`](performance-schema-tp-thread-state-table.html)                                             |                  Thread pool thread information                   |  8.0.14  |
|                                     [`user_defined_functions`](performance-schema-user-defined-functions-table.html)                                      |                   Registered loadable functions                   |          |
|                                        [`user_variables_by_thread`](performance-schema-user-variable-tables.html)                                         |                 User-defined variables per thread                 |          |
|                                                      [`users`](performance-schema-users-table.html)                                                       |            Connection statistics per client user name             |          |
|                                          [`variables_by_thread`](performance-schema-system-variable-tables.html)                                          |               Session system variables per session                |          |
|                                            [`variables_info`](performance-schema-system-variable-tables.html)                                             |            How system variables were most recently set            |          |

