Free or unmap unneeded memory

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Consumption of unneeded memory consumes energy because the memory module consumes more energy. Unneeded memory can also increase energy consumption indirectly because it could force a system to use virtual memory when it is not really needed. Limiting the amount of memory needed is always best for energy efficiency.

Reduce memory leaks

When a program consumes memory but after usage does not release it back to the operating system, this is known as a memory leak. Memory leaks can cause nasty effects like causing an application to stall or crash or the entire system can come to a halt. Memory leaks should be avoided at any time.

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