when object to be distributed?

when objects to be distributed?.Why can't all object exist in same same physical computer(vm).IF it needs any perfomance improvment ,i can use caching?

IF it needs any perfomance improvment ,i can use caching?

If your application is CPU bound, how does caching help? If your perfoamnce problem is memory bound, how does caching help?

Caching typically helps when data is sourced from some persistant store the has a high IO impact. Its not a panacea for all performance problems, indeed it may cause performance issues if your application is not distibutable and you start to hit the limits of your JVM's heap.

when objects to be distributed?

please address this question

Performance is the main reason. Two possible perfomance issue I mention above. Given all performance issue on computers boil can be cused by:

the CPU

memory

IO

adding more of any of the above is a way to fix the perfomance issue.