Performance Schema
PERFORMANCE_SCHEMA 在该 MySQL 服务器上可用。
performance_schema | ON | |
---|---|---|
performance_schema_accounts_size | -1 | |
performance_schema_digests_size | 10000 | |
performance_schema_error_size | 4593 | |
performance_schema_events_stages_history_long_size | 10000 | |
performance_schema_events_stages_history_size | 10 | |
performance_schema_events_statements_history_long_size | 10000 | |
performance_schema_events_statements_history_size | 10 | |
performance_schema_events_transactions_history_long_size | 10000 | |
performance_schema_events_transactions_history_size | 10 | |
performance_schema_events_waits_history_long_size | 10000 | |
performance_schema_events_waits_history_size | 10 | |
performance_schema_hosts_size | -1 | |
performance_schema_max_cond_classes | 100 | |
performance_schema_max_cond_instances | -1 | |
performance_schema_max_digest_length | 1024 | |
performance_schema_max_digest_sample_age | 60 | |
performance_schema_max_file_classes | 80 | |
performance_schema_max_file_handles | 32768 | |
performance_schema_max_file_instances | -1 | |
performance_schema_max_index_stat | -1 | |
performance_schema_max_memory_classes | 450 | |
performance_schema_max_metadata_locks | -1 | |
performance_schema_max_mutex_classes | 300 | |
performance_schema_max_mutex_instances | -1 | |
performance_schema_max_prepared_statements_instances | -1 | |
performance_schema_max_program_instances | -1 | |
performance_schema_max_rwlock_classes | 60 | |
performance_schema_max_rwlock_instances | -1 | |
performance_schema_max_socket_classes | 10 | |
performance_schema_max_socket_instances | -1 | |
performance_schema_max_sql_text_length | 1024 | |
performance_schema_max_stage_classes | 175 | |
performance_schema_max_statement_classes | 218 | |
performance_schema_max_statement_stack | 10 | |
performance_schema_max_table_handles | -1 | |
performance_schema_max_table_instances | -1 | |
performance_schema_max_table_lock_stat | -1 | |
performance_schema_max_thread_classes | 100 | |
performance_schema_max_thread_instances | -1 | |
performance_schema_session_connect_attrs_size | 512 | |
performance_schema_setup_actors_size | -1 | |
performance_schema_setup_objects_size | -1 | |
performance_schema_users_size | -1 |