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MySQL 9.0 Reference Manual
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The file_instances Table
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The events_waits_history_long Table
Performance Schema Stage Event Tables
The events_stages_current Table
The events_stages_history Table
The events_stages_history_long Table
Performance Schema Statement Event Tables
The events_statements_current Table
The events_statements_history Table
The events_statements_history_long Table
The prepared_statements_instances Table
Performance Schema Transaction Tables
The events_transactions_current Table
The events_transactions_history Table
The events_transactions_history_long Table
Performance Schema Connection Tables
The accounts Table
The hosts Table
The users Table
Performance Schema Connection Attribute Tables
The session_account_connect_attrs Table
The session_connect_attrs Table
Performance Schema User-Defined Variable Tables
Performance Schema Replication Tables
The binary_log_transaction_compression_stats Table
The replication_applier_configuration Table
The replication_applier_filters Table
The replication_applier_global_filters Table
The replication_applier_status Table
The replication_applier_status_by_coordinator Table
The replication_applier_status_by_worker Table
The replication_asynchronous_connection_failover_managed Table
The replication_connection_configuration Table
The replication_asynchronous_connection_failover Table
The replication_connection_status Table
The replication_group_communication_information Table
The replication_group_configuration_version Table
The replication_group_member_actions Table
The replication_group_member_stats Table
The replication_group_members Table
Performance Schema NDB Cluster Tables
The ndb_sync_pending_objects Table
The ndb_sync_excluded_objects Table
The ndb_replication_applier_status Table
Performance Schema Lock Tables
The data_locks Table
The data_lock_waits Table
The metadata_locks Table
The table_handles Table
Performance Schema System Variable Tables
Performance Schema global_variable_attributes Table
Performance Schema persisted_variables Table
Performance Schema variables_info Table
Performance Schema variables_metadata Table
Performance Schema Status Variable Tables
Performance Schema Thread Pool Tables
The tp_connections Table
The tp_thread_group_state Table
The tp_thread_group_stats Table
The tp_thread_state Table
Performance Schema Firewall Tables
The firewall_groups Table
The firewall_group_allowlist Table
The firewall_membership Table
Performance Schema Keyring Tables
The keyring_component_status Table
The keyring_keys table
Performance Schema Clone Tables
The clone_status Table
The clone_progress Table
Performance Schema Summary Tables
Wait Event Summary Tables
Stage Summary Tables
Statement Summary Tables
Statement Histogram Summary Tables
Transaction Summary Tables
Object Wait Summary Table
File I/O Summary Tables
Table I/O and Lock Wait Summary Tables
Socket Summary Tables
Memory Summary Tables
Error Summary Tables
Status Variable Summary Tables
Performance Schema Telemetry Tables
The setup_meters Table
The setup_metrics Table
Performance Schema Miscellaneous Tables
The component_scheduler_tasks Table
The error_log Table
The host_cache Table
The innodb_redo_log_files Table
The log_status Table
The performance_timers Table
The processlist Table
The threads Table
The tls_channel_status Table
The user_defined_functions Table
Performance Schema Option and Variable Reference
Performance Schema Command Options
Performance Schema System Variables
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The Performance Schema Memory-Allocation Model
Performance Schema and Plugins
Using the Performance Schema to Diagnose Problems
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version 9.0
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8.4 current
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8.0 Japanese
MySQL 9.0 Reference Manual
/
MySQL Performance Schema
/ Performance Schema Option and Variable Reference
29.13 Performance Schema Option and Variable Reference
Table 29.16 Performance Schema Variable Reference
Name
Cmd-Line
Option File
System Var
Status Var
Var Scope
Dynamic
performance_schema
Yes
Yes
Yes
Global
No
Performance_schema_accounts_lost
Yes
Global
No
performance_schema_accounts_size
Yes
Yes
Yes
Global
No
Performance_schema_cond_classes_lost
Yes
Global
No
Performance_schema_cond_instances_lost
Yes
Global
No
performance-schema-consumer-events-stages-current
Yes
Yes
performance-schema-consumer-events-stages-history
Yes
Yes
performance-schema-consumer-events-stages-history-long
Yes
Yes
performance-schema-consumer-events-statements-cpu
Yes
Yes
performance-schema-consumer-events-statements-current
Yes
Yes
performance-schema-consumer-events-statements-history
Yes
Yes
performance-schema-consumer-events-statements-history-long
Yes
Yes
performance-schema-consumer-events-transactions-current
Yes
Yes
performance-schema-consumer-events-transactions-history
Yes
Yes
performance-schema-consumer-events-transactions-history-long
Yes
Yes
performance-schema-consumer-events-waits-current
Yes
Yes
performance-schema-consumer-events-waits-history
Yes
Yes
performance-schema-consumer-events-waits-history-long
Yes
Yes
performance-schema-consumer-global-instrumentation
Yes
Yes
performance-schema-consumer-statements-digest
Yes
Yes
performance-schema-consumer-thread-instrumentation
Yes
Yes
Performance_schema_digest_lost
Yes
Global
No
performance_schema_digests_size
Yes
Yes
Yes
Global
No
performance_schema_events_stages_history_long_size
Yes
Yes
Yes
Global
No
performance_schema_events_stages_history_size
Yes
Yes
Yes
Global
No
performance_schema_events_statements_history_long_size
Yes
Yes
Yes
Global
No
performance_schema_events_statements_history_size
Yes
Yes
Yes
Global
No
performance_schema_events_transactions_history_long_size
Yes
Yes
Yes
Global
No
performance_schema_events_transactions_history_size
Yes
Yes
Yes
Global
No
performance_schema_events_waits_history_long_size
Yes
Yes
Yes
Global
No
performance_schema_events_waits_history_size
Yes
Yes
Yes
Global
No
Performance_schema_file_classes_lost
Yes
Global
No
Performance_schema_file_handles_lost
Yes
Global
No
Performance_schema_file_instances_lost
Yes
Global
No
Performance_schema_hosts_lost
Yes
Global
No
performance_schema_hosts_size
Yes
Yes
Yes
Global
No
performance-schema-instrument
Yes
Yes
Performance_schema_locker_lost
Yes
Global
No
performance_schema_max_cond_classes
Yes
Yes
Yes
Global
No
performance_schema_max_cond_instances
Yes
Yes
Yes
Global
No
performance_schema_max_digest_length
Yes
Yes
Yes
Global
No
performance_schema_max_file_classes
Yes
Yes
Yes
Global
No
performance_schema_max_file_handles
Yes
Yes
Yes
Global
No
performance_schema_max_file_instances
Yes
Yes
Yes
Global
No
performance_schema_max_memory_classes
Yes
Yes
Yes
Global
No
performance_schema_max_metadata_locks
Yes
Yes
Yes
Global
No
performance_schema_max_meter_classes
Yes
Yes
Yes
Global
No
performance_schema_max_metric_classes
Yes
Yes
Yes
Global
No
performance_schema_max_mutex_classes
Yes
Yes
Yes
Global
No
performance_schema_max_mutex_instances
Yes
Yes
Yes
Global
No
performance_schema_max_prepared_statements_instances
Yes
Yes
Yes
Global
No
performance_schema_max_program_instances
Yes
Yes
Yes
Global
No
performance_schema_max_rwlock_classes
Yes
Yes
Yes
Global
No
performance_schema_max_rwlock_instances
Yes
Yes
Yes
Global
No
performance_schema_max_socket_classes
Yes
Yes
Yes
Global
No
performance_schema_max_socket_instances
Yes
Yes
Yes
Global
No
performance_schema_max_stage_classes
Yes
Yes
Yes
Global
No
performance_schema_max_statement_classes
Yes
Yes
Yes
Global
No
performance_schema_max_statement_stack
Yes
Yes
Yes
Global
No
performance_schema_max_table_handles
Yes
Yes
Yes
Global
No
performance_schema_max_table_instances
Yes
Yes
Yes
Global
No
performance_schema_max_thread_classes
Yes
Yes
Yes
Global
No
performance_schema_max_thread_instances
Yes
Yes
Yes
Global
No
Performance_schema_memory_classes_lost
Yes
Global
No
Performance_schema_metadata_lock_lost
Yes
Global
No
Performance_schema_meter_lost
Yes
Global
No
Performance_schema_metric_lost
Yes
Global
No
Performance_schema_mutex_classes_lost
Yes
Global
No
Performance_schema_mutex_instances_lost
Yes
Global
No
Performance_schema_nested_statement_lost
Yes
Global
No
Performance_schema_prepared_statements_lost
Yes
Global
No
Performance_schema_program_lost
Yes
Global
No
Performance_schema_rwlock_classes_lost
Yes
Global
No
Performance_schema_rwlock_instances_lost
Yes
Global
No
Performance_schema_session_connect_attrs_lost
Yes
Global
No
performance_schema_session_connect_attrs_size
Yes
Yes
Yes
Global
No
performance_schema_setup_actors_size
Yes
Yes
Yes
Global
No
performance_schema_setup_objects_size
Yes
Yes
Yes
Global
No
Performance_schema_socket_classes_lost
Yes
Global
No
Performance_schema_socket_instances_lost
Yes
Global
No
Performance_schema_stage_classes_lost
Yes
Global
No
Performance_schema_statement_classes_lost
Yes
Global
No
Performance_schema_table_handles_lost
Yes
Global
No
Performance_schema_table_instances_lost
Yes
Global
No
Performance_schema_thread_classes_lost
Yes
Global
No
Performance_schema_thread_instances_lost
Yes
Global
No
Performance_schema_users_lost
Yes
Global
No
performance_schema_users_size
Yes
Yes
Yes
Global
No
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