The other changes are primarily due to dividing up the available memory for necessary caches like the package and catalog cache or adjusting the Settings for short transactions (logging and sorting).

Also keep in mind that on AIX, there is approximately a Max of 250mb of private virtual memory for index key sorting in LOAD (this is a memory bottleneck).

In the memory process, to learn all the words summed up for sorting, its clarity, I understand the head, and then memory, respectively.