Siebel 8.1.1.4 Memory-Based recycling

We are trying to configure memory based recycling for our object manager process on production server (OS - AIX 6.1)

I was trying to figure out how exactly it works as bookshelf didn't use any data in its explanation. This would help us in using appropriate values in our environment.

For example, if I set these values - 

MemoryBasedRecycle - True

MemoryLimit - 1500

MemoryLimitPercent - 20

Does it mean that the memory recycle process starts when the process reaches 1800 MB (1500 + 20%(1500)) ?

Also, bookshelf says - "When memory usage exceeds the value of MemoryLimitPercent above MemoryLimit, a fast shutdown of the memory consuming process is triggered rather than a normal shutdown."