252 DB2 Performance Expert for Multiplatforms V2.2
Performance Warehouse components
In Figure 5-1 on page 242,we see four types of reporting that are available:
PWH Processes (includes Reports)
PWH Rules of Thumb
PWH Queries
Buffer Pool Analysis (BPA)
The PWH components are presented in the PE Client GUI in the Performance
Warehouse windows, while the BPA gets its own interface, but they all use the
PWH data as input to the reports.
In the Performance Warehouse screens, there are three components from which
to choose:
Process groups
The PWH process groups are made up of processes, and each process can
have up to three steps - Collect Report Data (CRD), Load, and Report. Not all
steps are always performed when you execute a process. In this ...