Eficiência de gas e Gerenciamento de Memória — Forge College

Want to reduce gas costs in multi-layered Solidity contracts without altering observable behavior? This lesson shows how to identify and correct critical memory and efficiency issues that are amplified when logic is divided into modules. What you will learn: In this guided lab, you will audit concrete functions of a layered example and apply fixes that reduce gas consumption while preserving correctness. You will cover practical decisions such as choosing call data versus memory, minimizing repeated storage reads (SLOAD), avoiding unnecessary copies of large arrays and structs, using data packing and local caching, and safely applying unchecked. You will also measure gas before and after optimizations using local tools (e.g., Hardhat), produce a debug report with concrete numbers, and run behavioral tests to verify the absence of regressions. Who it's for: Intended for advanced Solidity developers who already understand storage and logic separation, proxy patterns, and basic EVM principles. Requires hands-on experience with local testing and reading transactions in development tools. Main topics covered: Choosing call data vs. memory for parameters and returns Minimizing repeated storage reads (SLOAD) and reducing superfluous SSTORE Avoiding copies of large arrays and structs; streaming/caching techniques Packing structs and using local caching to reduce on-chain accesses Selective use of unchecked and other safe micro-optimizations Measuring gas with Hardhat, comparing before/after, and producing a debug report At the end, you will have a corrected version of the layered example, comparative gas measurements, and a reusable checklist of optimizations that can be applied to other modules. Ready to optimize your contracts and reduce real operating costs? Access https://www.forge.college/