Parallel application server

[woodholly]

1. I know it is possible to run different lsfusion application servers in parallel (each with it's own database and rmi.port). But each app server eats a lot of ram (2Gb+ on start and more afterwards).
   Is it possible to run ONE lsfusion application server with multiple different databases, to save RAM ? (100x of instances)
   Can you guys estimate how hard it would be to implement this ?

2. Any other ways to decrease RAM usage of app servers ? (lsfusion application data is very small and don't need large buffers). I see one possible way - export Jasper-Reports code into microservice, but that will save <500Mb.

3. Same question about web clients (500Mb each).

4. Or maybe I am wrong and it is easier to use one database with one app server, and add some other way to distinguish different datasets (*instance_id key in each table) ? How hard it would be to implement this ?