The table snapshot and the dynamic SQL snapshot are more expansive snapshots, and in online mode it can take time to get the information from the monitored instance.
表快照和动态sql快照是信息量很大的快照，在在线模式中需要花些时间从监视的实例获取这些信息。
2
In a large partition environment, set the default Performance Expert login mode to history-only mode, because too many users logging in using current mode can impact the monitored DB2 instance.