The objects comparison view settings dialog is accessed by bringing any objects comparison to front and choosing View->View Settings from JProfiler's main menu or clicking on the corresponding  toolbar button.

You can select a size scale mode for all displayed sizes: Automatic Depending on the size value, it's displayed in MB, kB or bytes, in such a way that 3 significant digits are retained. Megabytes (MB) Kilobytes (kB Bytes

The primary measure defines which measurement will be shown in the second column of the objects view. That column shows its values graphically with a histogram, has percentages attached and is the default sort column. By default, the primary measure is the instance count. Alternatively, you can work with the shallow size, which is especially useful if you're looking at arrays.

The differences of primary measure options determine how differences in the primary measure column are displayed and how that column is sorted. Sort and display type The sort and display type can be one of Sort by values The bar chart in the primary measure column displays absolute differences. When this column is sorted, it is sorted by absolute differences. Percentages are displayed in parentheses. Sort by percentages The bar chart in the primary measure column displays percentages. When this column is sorted, it is sorted by absolute percentages. Absolute differences are displayed in parentheses. Show zero difference values If this option is not checked, the objects comparison does not display hot spots that have not changed between the first and the second snapshot.