Exploring Memory Analysis Views > Exploring the Memory Difference View > Using Filters in the Memory Difference View
If you want to specify filters, you can use the Set Filters dialog. You can re-use existing filters or deselect them so that they do not filter data. You can also use the Filter Classes option above the table, which is described under the Instance view (see Filtering Data in the Instances View).
To see how data is affected by Set Display Filters, consider the following example of how the Memory Usage Change By percentage is calculated, first with filters applied, then without. The totals in the snapshots are different. For example, the baseline snapshot with filters has a total of 50 instances, while the total without filters is 100 instances.
Therefore, when comparing Memory Difference results, be sure to take the filters setting into consideration.