Memory management in constrained environments
There are environments in which memory is a precious resource, and it is often limited. There are also other environments in which performance is a key factor and programs should be fast, no matter how much memory we have. Regarding memory management, each of these environments requires a specific technique to overcome the memory shortage and performance degradation. First, we need to know what a constrained environment is.
A constrained environment does not necessarily have a low memory capacity. There are usually some constraints that limit the memory usage for a program. These constraints can be your customer's hard limits regarding memory usage, or it could be because of a hardware that provides the low memory capacity, or it can be because of an operating system that does not support a bigger memory (for example, MS-DOS).
Even if there are no constraints or hardware limitations, we as programmers try our best to use the...
