This screen helps you determine the relative CPU performance impact of row caching. Poor CPU performance can result if many hash table collisions occur. This screen displays the following fields: o Cache ID- the row cache identifier o #Rows- the total number of rows in the row cache o Table Size- the total number of hash table entries for the row cache Each character position of the screen identifies a specific hash table entry. The character, if any, identifies the length of that entry's queue. The asterisk (*) denotes a queue length of 10 or more. The line of "X"s indicates the end of the display. All blank lines following the row of "X"s can be ignored. Ideally, every space of the screen should be non-zero. A display containing many long queues and a lot of blanks indicates poor CPU utilization. You can use the Config menu option to filter the Row Cache Queue Length screen. Select this option, by typing the letter C, to display the configuration submenu. The configuration submenu contains a single option: "Filter Utilization Display". Selecting this option will display the prompt "Enter row cache threshold (0+) [current=1]: ". Any queue length which is less than the specified utilization threshold will not be displayed. By default, the utilization threshold is 0, so that all entries on the screen are displayed, even those of length 0. The number of rows in the row cache affects the size of the corresponding hash table. Hash table queue lengths can be controlled by increasing or decreasing the number of row cache entries. When there is more than one page of the Row Cache Queue Length screen, the header section contains the page number currently displayed and the total number of pages in the display. Use the left angle bracket (<) key to go to the previous page and the right angle bracket (>) key to go to the next page of the screen. The Row Cache Queue Length screen is not recorded in the binary output file produced using the Output qualifier. Consequently, this screen is not available when you replay a binary file using the Input qualifier.