Unity Game Optimization - Third Edition

Masterful Memory Management

Memory efficiency is an important element of performance optimization. It's possible for games of limited scope, such as hobby projects and prototypes, to get away with ignoring memory management. These games will tend to waste a lot of resources and potentially leak memory, but this won't be a problem if we limit its exposure to friends and coworkers. However, anything we want to release professionally needs to take this subject seriously. Unnecessary memory allocations lead to poor user experience due to excessive garbage collection (costing precious CPU time) and memory leaks, which will lead to crashes. None of these situations are acceptable in modern game releases.

Using memory efficiently with Unity requires ...