Having an issue where our BEA Managed Server is blowing the JVM limit (32bit windows) and so crashed.

Found this and needed to remember it, so excuse the note to self

Formulas for calculating memory
The following formulas give an approximation of how you need to set the arguments. These
formulas are not exact and may need to be adjusted according to your processing needs.

MEM_MAX MAXPERMSIZE <= 4GB RAM