performance_schema_max_rwlock_classes | 40 | | 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 | 150 |...
3 performance_schema_max_memory_classes = 320 4 performance_schema_max_mutex_classes =200 5 performance_schema_max_rwlock_classes = 80 6 performance_schema_max_socket_classes = 20 7 performance_schema_max_stage_classes = 200 8 performance_schema_max_statement_classes = 256 9 performance_schema_...
performance_schema_max_rwlock_classesYesYesYesGlobalNo performance_schema_max_rwlock_instancesYesYesYesGlobalNo performance_schema_max_socket_classesYesYesYesGlobalNo performance_schema_max_socket_instancesYesYesYesGlobalNo performance_schema_max_stage_classesYesYesYesGlobalNo ...
erformance_schema_object_[size|instances|classes|length|handles]的模式,其中对象要么是 消费者表,要么是设置表,要么是特定事件的插桩实例 例: 配置变量performance_schema_events_stages_history_size定义了performance_schema_events_stages_history表将存储的每个线程的阶段数。 配置变量performance_schema_max_memory_...
performance_schema_max_rwlock_classes 40 performance_schema_max_rwlock_instances 1628 performance_schema_max_socket_classes 10 performance_schema_max_socket_instances 84 performance_schema_max_stage_classes 150 performance_schema_max_statement_classes 180 ...
| performance_schema | ON | +---+---+ 这个值表示,性能框架已经可用,如果为off表示发生错误,检查错误日志。 性能框架实现和存储引擎类似。如果引擎可用可以在show engine查看是否支持PERFORMANCE_SCHEMA存储引擎。 Performance_schema中的数据库可以被划分为几块,当前时间,历史事件,总结,对象实例和安装信息。 原本,...
MPSCnnDilatedPoolingMaxGradientNode MPSCnnDilatedPoolingMaxNode MPSCnnDivide MPSCnnDropout MPSCnnDropoutGradient MPSCnnDropoutGradientNode MPSCnnDropoutGradientState MPSCnnDropoutNode MPSCnnFullyConnected MPSCnnFullyConnectedGradient MPSCnnFullyConnectedNode MPSCnnGradientKernel MPSCnnInstanceNormalization MPSCnnInstanc...
...1.performance_schema架构 1.1:performance schema ? 1.2:consumer消费图 ?...默认100行,通过performance_schema_setup_actors_size调整。...3.2.1:作用 ①:降低负载,虽然开启performance schema对数据库性能影响并不是太大,但是毕竟是有额外的负载。...4.3:测试结果 performance_schemawtpsw损耗rtpsr损耗rwtps...
Max File ClassesThe maximum number of file instruments. Max File HandlesThe maximum number of opened file objects. The value of performance_schema_max_file_handles should be greater than the value of open_files_limit: open_files_limit affects the maximum number of open file handles the server ...
A value ofPerformance_schema_mutex_classes_lostgreater than 0 can happen in two cases: If the value chosen forperformance_schema_max_mutex_classesis too small, no error is reported in the error log and there is no failure at runtime. However, the content of the tables in theperformance_sc...