drop table if exists test.marker; create table test.marker(a int); update performance_schema.setup_consumers set enabled='NO'; update performance_schema.setup_instruments set enabled='NO'; update performance_schema.setup_instruments set enabled='YES' where name like "wait/io/table/%"; truncate table performance_schema.events_waits_history_long; flush status; flush tables; # We are forced to suppress here the server response. optimize table mysql.host; optimize table mysql.user; optimize table mysql.db; optimize table mysql.proxies_priv; optimize table mysql.tables_priv; optimize table mysql.procs_priv; optimize table mysql.servers; flush privileges; show create table test.marker; show global status; show global variables; update performance_schema.setup_consumers set enabled='YES'; update performance_schema.setup_objects set enabled='YES' where object_type='TABLE' and object_schema= 'mysql'; flush privileges; insert into test.marker set a = 1; insert into test.marker set a = 1; insert into test.marker set a = 1; show global variables like "performance_schema%table%"; Variable_name Value performance_schema_max_table_handles -1 performance_schema_max_table_instances -1 performance_schema_max_table_lock_stat -1 show global status like "performance_schema%table%"; Variable_name Value Performance_schema_table_handles_lost 0 Performance_schema_table_instances_lost 0 Performance_schema_table_lock_stat_lost 0 update performance_schema.setup_consumers set enabled='NO'; select event_name, left(source, locate(":", source)) as short_source, object_type, object_schema, if (locate("#sql-", object_name), "#sql-XXXX", object_name) as pretty_name, operation, number_of_bytes from performance_schema.events_waits_history_long where event_name like 'wait/io/table/%' and object_schema in ("test", "mysql") order by thread_id, event_id; event_name short_source object_type object_schema pretty_name operation number_of_bytes wait/io/table/sql/handler handler.cc: TABLE mysql user fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql user fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql user fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql user fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql user fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql db fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql db fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql db fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql db fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql proxies_priv fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql proxies_priv fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql global_grants fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql role_edges fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql default_roles fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql tables_priv fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql tables_priv fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql tables_priv fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql procs_priv fetch 1 wait/io/table/sql/handler handler.cc: TABLE mysql servers fetch 1 wait/io/table/sql/handler handler.cc: TABLE test marker insert 1 wait/io/table/sql/handler handler.cc: TABLE test marker insert 1 wait/io/table/sql/handler handler.cc: TABLE test marker insert 1 show global status like 'performance_schema_%_lost'; Variable_name Value Performance_schema_accounts_lost 0 Performance_schema_cond_classes_lost 0 Performance_schema_cond_instances_lost 0 Performance_schema_digest_lost 0 Performance_schema_file_classes_lost 0 Performance_schema_file_handles_lost 0 Performance_schema_file_instances_lost 0 Performance_schema_hosts_lost 0 Performance_schema_index_stat_lost 0 Performance_schema_locker_lost 0 Performance_schema_memory_classes_lost 0 Performance_schema_metadata_lock_lost 0 Performance_schema_mutex_classes_lost 0 Performance_schema_mutex_instances_lost 0 Performance_schema_nested_statement_lost 0 Performance_schema_prepared_statements_lost 0 Performance_schema_program_lost 0 Performance_schema_rwlock_classes_lost 0 Performance_schema_rwlock_instances_lost 0 Performance_schema_session_connect_attrs_lost 0 Performance_schema_socket_classes_lost 0 Performance_schema_socket_instances_lost 0 Performance_schema_stage_classes_lost 0 Performance_schema_statement_classes_lost 0 Performance_schema_table_handles_lost 0 Performance_schema_table_instances_lost 0 Performance_schema_table_lock_stat_lost 0 Performance_schema_thread_classes_lost 0 Performance_schema_thread_instances_lost 0 Performance_schema_users_lost 0 truncate performance_schema.events_waits_history_long; flush status; update performance_schema.setup_consumers set enabled='NO'; truncate performance_schema.events_waits_history_long; drop table test.marker; flush status; update performance_schema.setup_instruments set enabled='YES'; update performance_schema.setup_consumers set enabled='YES'; update performance_schema.setup_objects set enabled='NO' where object_type='TABLE' and object_schema= 'mysql';