I recorded cca 30 seconds of real application execution, limiting to only five Java namespaces with up to 100 classes. The packed recording took 25 MB on the disk.

Unpacking this recording in Eclipse would use up 4 GB of free physical memory, then the system would start swapping and eventually I had to stop it.

Using the Unpacker downloaded with recording server finally worked, but it took 15 minutes and produced almost 2 GB of recording data.

Is this the expected performance?