Why are there so many normalization and delta combinations on a Tprof comparison?
The purpose in providing several options was to allow users to select the ones that make the most sense for their situation. Through the use of the Show/Hide button, columns can be added and removed, resulting in only the columns the user wants to see. Please remember the following points: • Normalization means that the second collection is “normalized” by a specific factor. All hit counts in the second collection are multiplied by a value. The time and hit count normalizations are computed by PTDV each time; the “throughput” normalization uses user input to determine the correct normalization factor. The first collection is used as the base collection and is never normalized. • Deltas are the difference between the first and second collection. A positive delta indicates that there was an increase between the first and second collection. These columns are percent-rendered columns, meaning they show a bar that represents a percent value. The base for the percent depends on whether it is
