高效Go语言(影印版)

随着技术的进步、市场的快速发展和系统复杂性 的日益增加，软件工程师倾向于跳过软件效率这个令人 不舒服的话题。然而，要想节省资金并确保业务成功， 战术性的、由可观测性驱动的性能优化对于所有产品来 说都是至关重要的。 通过本书，任何工程师都可以轻松学会如何有效 、专业且无压力地提高软件效率。作者Bart?omiej P?otka讲解了提高系统速度和降低资源消耗所需的工 具和知识。本书将指导你使用Go实现更好的日常工作效 率。此外，书中大多数内容与语言无关，以便你将小而 有效的习惯带入编程或产品管理周期。

Preface 1. Software Efficiency Matters Behind Performance Common Efficiency Misconceptions Optimized Code Is Not Readable You Aren't Going to Need It Hardware Is Getting Faster and Cheaper We Can Scale Horizontally Instead Time to Market Is More Important The Key to Pragmatic Code Performance Summary 2. Efficient Introduction to Go Basics You Should Know About Go Imperative, Compiled, and Statically Typed Language Designed to Improve Serious Codebases Governed by Google, Yet Open Source Simplicity, Safety, and Readability Are Paramount Packaging and Modules Dependencies Transparency by Default Consistent Tooling Single Way of Handling Errors Strong Ecosystem Unused Import or Variable Causes Build Error Unit Testing and Table Tests Advanced Language Elements Code Documentation as a First Citizen Backward Compatibility and Portability Go Runtime Object-Oriented Programming Generics Is Go \"Fast\"? Summary 3. Conquering Efficiency Beyond Waste, Optimization Is a Zero-Sum Game Reasonable Optimizations Deliberate Optimizations Optimization Challenges Understand Your Goals Efficiency Requirements Should Be Formalized Resource-Aware Efficiency Requirements Acquiring and Assessing Efficiency Goals Example of Defining RAER Got an Efficiency Problem? Keep Calm! Optimization Design Levels Efficiency-Aware Development Flow Functionality Phase Efficiency Phase Summary 4. How Go Uses the CPU Resource (or Two) CPU in a Modern Computer Architecture