MySQL 5.7 Reference Manual Including MySQL NDB Cluster 7.5 and NDB Cluster 7.6

25.4.2 Performance Schema Event Filtering

Events are processed in a producer/consumer fashion:

Filtering can be done at different stages of performance monitoring:

The following sections provide more detail about pre-filtering and provide guidelines for naming instruments or consumers in filtering operations. For information about writing queries to retrieve information (post-filtering), see Section 25.5, “Performance Schema Queries”.