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show databases;
Database
information_schema
mtr
mysql
performance_schema
sys
test
select count(*) from performance_schema.performance_timers;
count(*)
5
select count(*) from performance_schema.setup_consumers;
count(*)
16
select count(*) > 4 from performance_schema.setup_instruments;
count(*) > 4
1
select * from performance_schema.accounts;
select * from performance_schema.cond_instances;
select * from performance_schema.events_stages_current;
select * from performance_schema.events_stages_history;
select * from performance_schema.events_stages_history_long;
select * from performance_schema.events_stages_summary_by_account_by_event_name;
select * from performance_schema.events_stages_summary_by_host_by_event_name;
select * from performance_schema.events_stages_summary_by_thread_by_event_name;
select * from performance_schema.events_stages_summary_by_user_by_event_name;
select * from performance_schema.events_stages_summary_global_by_event_name;
select * from performance_schema.events_statements_current;
select * from performance_schema.events_statements_histogram_by_digest;
select * from performance_schema.events_statements_histogram_global;
select * from performance_schema.events_statements_history;
select * from performance_schema.events_statements_history_long;
select * from performance_schema.events_statements_summary_by_account_by_event_name;
select * from performance_schema.events_statements_summary_by_digest;
select * from performance_schema.events_statements_summary_by_host_by_event_name;
select * from performance_schema.events_statements_summary_by_thread_by_event_name;
select * from performance_schema.events_statements_summary_by_user_by_event_name;
select * from performance_schema.events_statements_summary_global_by_event_name;
select * from performance_schema.events_transactions_current;
select * from performance_schema.events_transactions_history;
select * from performance_schema.events_transactions_history_long;
select * from performance_schema.events_transactions_summary_by_account_by_event_name;
select * from performance_schema.events_transactions_summary_by_host_by_event_name;
select * from performance_schema.events_transactions_summary_by_thread_by_event_name;
select * from performance_schema.events_transactions_summary_by_user_by_event_name;
select * from performance_schema.events_transactions_summary_global_by_event_name;
select * from performance_schema.events_waits_current;
select * from performance_schema.events_waits_history;
select * from performance_schema.events_waits_history_long;
select * from performance_schema.events_waits_summary_by_account_by_event_name;
select * from performance_schema.events_waits_summary_by_host_by_event_name;
select * from performance_schema.events_waits_summary_by_instance;
select * from performance_schema.events_waits_summary_by_thread_by_event_name;
select * from performance_schema.events_waits_summary_by_user_by_event_name;
select * from performance_schema.events_waits_summary_global_by_event_name;
select * from performance_schema.memory_summary_by_account_by_event_name;
select * from performance_schema.memory_summary_by_host_by_event_name;
select * from performance_schema.memory_summary_by_thread_by_event_name;
select * from performance_schema.memory_summary_by_user_by_event_name;
select * from performance_schema.memory_summary_global_by_event_name;
select * from performance_schema.events_errors_summary_by_account_by_error;
select * from performance_schema.events_errors_summary_by_host_by_error;
select * from performance_schema.events_errors_summary_by_thread_by_error;
select * from performance_schema.events_errors_summary_by_user_by_error;
select * from performance_schema.events_errors_summary_global_by_error;
select * from performance_schema.file_instances;
select * from performance_schema.file_summary_by_event_name;
select * from performance_schema.file_summary_by_instance;
select * from performance_schema.host_cache;
select * from performance_schema.hosts;
select * from performance_schema.memory_summary_by_account_by_event_name;
select * from performance_schema.memory_summary_by_host_by_event_name;
select * from performance_schema.memory_summary_by_thread_by_event_name;
select * from performance_schema.memory_summary_by_user_by_event_name;
select * from performance_schema.memory_summary_global_by_event_name;
select * from performance_schema.metadata_locks;
select * from performance_schema.mutex_instances;
select * from performance_schema.objects_summary_global_by_type;
select * from performance_schema.performance_timers;
select * from performance_schema.rwlock_instances;
select * from performance_schema.data_locks;
select * from performance_schema.data_lock_waits;
select * from performance_schema.session_account_connect_attrs;
select * from performance_schema.session_connect_attrs;
select * from performance_schema.setup_actors;
select * from performance_schema.setup_consumers;
select * from performance_schema.setup_instruments;
select * from performance_schema.setup_objects;
select * from performance_schema.setup_threads;
select * from performance_schema.socket_instances;
select * from performance_schema.socket_summary_by_instance;
select * from performance_schema.socket_summary_by_event_name;
select * from performance_schema.table_handles;
select * from performance_schema.table_io_waits_summary_by_index_usage;
select * from performance_schema.table_io_waits_summary_by_table;
select * from performance_schema.table_lock_waits_summary_by_table;
select * from performance_schema.threads;
select * from performance_schema.users;
select * from performance_schema.replication_connection_configuration;
select * from performance_schema.replication_connection_status;
select * from performance_schema.replication_applier_configuration;
select * from performance_schema.replication_applier_status;
select * from performance_schema.replication_applier_status_by_coordinator;
select * from performance_schema.replication_applier_status_by_worker;
select * from performance_schema.global_status;
select * from performance_schema.status_by_thread;
select * from performance_schema.status_by_user;
select * from performance_schema.status_by_host;
select * from performance_schema.status_by_account;
select * from performance_schema.session_status;
select * from performance_schema.global_variables;
select * from performance_schema.variables_by_thread;
select * from performance_schema.session_variables;
show engine PERFORMANCE_SCHEMA status;
show global status like "performance_schema%";
show global variables like "performance_schema_max_memory_classes";
Variable_name Value
performance_schema_max_memory_classes 0
select name from performance_schema.setup_instruments
where name like "memory/performance_schema/%"
order by name;
name
memory/performance_schema/accounts
memory/performance_schema/cond_class
memory/performance_schema/cond_instances
memory/performance_schema/data_container
memory/performance_schema/events_errors_summary_by_account_by_error
memory/performance_schema/events_errors_summary_by_host_by_error
memory/performance_schema/events_errors_summary_by_thread_by_error
memory/performance_schema/events_errors_summary_by_user_by_error
memory/performance_schema/events_errors_summary_global_by_error
memory/performance_schema/events_stages_history
memory/performance_schema/events_stages_history_long
memory/performance_schema/events_stages_summary_by_account_by_event_name
memory/performance_schema/events_stages_summary_by_host_by_event_name
memory/performance_schema/events_stages_summary_by_thread_by_event_name
memory/performance_schema/events_stages_summary_by_user_by_event_name
memory/performance_schema/events_stages_summary_global_by_event_name
memory/performance_schema/events_statements_current
memory/performance_schema/events_statements_current.digest_text
memory/performance_schema/events_statements_current.sql_text
memory/performance_schema/events_statements_history
memory/performance_schema/events_statements_history_long
memory/performance_schema/events_statements_history_long.digest_text
memory/performance_schema/events_statements_history_long.sql_text
memory/performance_schema/events_statements_history.digest_text
memory/performance_schema/events_statements_history.sql_text
memory/performance_schema/events_statements_summary_by_account_by_event_name
memory/performance_schema/events_statements_summary_by_digest
memory/performance_schema/events_statements_summary_by_digest.digest_text
memory/performance_schema/events_statements_summary_by_host_by_event_name
memory/performance_schema/events_statements_summary_by_program
memory/performance_schema/events_statements_summary_by_thread_by_event_name
memory/performance_schema/events_statements_summary_by_user_by_event_name
memory/performance_schema/events_statements_summary_global_by_event_name
memory/performance_schema/events_transactions_history
memory/performance_schema/events_transactions_history_long
memory/performance_schema/events_transactions_summary_by_account_by_event_name
memory/performance_schema/events_transactions_summary_by_host_by_event_name
memory/performance_schema/events_transactions_summary_by_thread_by_event_name
memory/performance_schema/events_transactions_summary_by_user_by_event_name
memory/performance_schema/events_waits_history
memory/performance_schema/events_waits_history_long
memory/performance_schema/events_waits_summary_by_account_by_event_name
memory/performance_schema/events_waits_summary_by_host_by_event_name
memory/performance_schema/events_waits_summary_by_thread_by_event_name
memory/performance_schema/events_waits_summary_by_user_by_event_name
memory/performance_schema/file_class
memory/performance_schema/file_handle
memory/performance_schema/file_instances
memory/performance_schema/hosts
memory/performance_schema/memory_class
memory/performance_schema/memory_summary_by_account_by_event_name
memory/performance_schema/memory_summary_by_host_by_event_name
memory/performance_schema/memory_summary_by_thread_by_event_name
memory/performance_schema/memory_summary_by_user_by_event_name
memory/performance_schema/memory_summary_global_by_event_name
memory/performance_schema/metadata_locks
memory/performance_schema/mutex_class
memory/performance_schema/mutex_instances
memory/performance_schema/prepared_statements_instances
memory/performance_schema/rwlock_class
memory/performance_schema/rwlock_instances
memory/performance_schema/scalable_buffer
memory/performance_schema/session_connect_attrs
memory/performance_schema/setup_actors
memory/performance_schema/setup_objects
memory/performance_schema/socket_class
memory/performance_schema/socket_instances
memory/performance_schema/stage_class
memory/performance_schema/statement_class
memory/performance_schema/table_handles
memory/performance_schema/table_io_waits_summary_by_index_usage
memory/performance_schema/table_lock_waits_summary_by_table
memory/performance_schema/table_shares
memory/performance_schema/thread_class
memory/performance_schema/threads
memory/performance_schema/users
select count(*) from performance_schema.setup_instruments
where name like "memory/%"
and name not like "memory/performance_schema/%";
count(*)
0
select variable_value > 0 from performance_schema.global_status
where variable_name like 'PERFORMANCE_SCHEMA_MEMORY_CLASSES_LOST';
variable_value > 0
1
|
