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MySQL 5.5 Reference Manual  /  MySQL Performance Schema  /  Performance Schema Option and Variable Reference

22.10 Performance Schema Option and Variable Reference

Table 22.2 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_cond_classes_lost Yes Global No
Performance_schema_cond_instances_lost 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_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_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_mutex_classes Yes Yes Yes Global No
performance_schema_max_mutex_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_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_mutex_classes_lost Yes Global No
Performance_schema_mutex_instances_lost Yes Global No
Performance_schema_rwlock_classes_lost Yes Global No
Performance_schema_rwlock_instances_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


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