Exploring Memory Analysis Views > Exploring the Memory Difference View > Understanding the Memory Difference View
The Memory Difference view is similar to the Instances view, except that it displays differences between one snapshot and another.
In the table, a negative value means that you improved memory use—fewer instances were created or less memory was used in the compared snapshot. A positive value means memory use worsened since the baseline snapshot—more instances of the class were created in the compared snapshot. A zero value indicates no change. Across the top of the table is a totals line, which shows the overall change the underlying data set.
Note If you have used the Filter Classes option, some of the classes may not be visible.
The percentages above the table are calculated using the following formula: Percentage = (Compared - Baseline) / Baseline * 100.
If the resulting value is >1000% or <-1000%, the change is reported as “huge.”