Notable among these are clarity, efficiency and simplicity. Here’s what I advised our team, and I thought I’d share it with you as a public awareness campaign highlighting a universal problem. The best implementation would be clear, efficient and simple. But like most fun things, at its heart lurks a deep evil. "Premature Optimization Is The Root Of All Evil" Is The Root Of Some Evil There's a folklore quote "premature optimization is the root of all evil", attributed to Tony Hoare and Donald Knuth. Premature Optimization is The Root of All Evil "Premature optimization" is a phrase used to describe a situation where a programmer lets performance considerations affect the design of a piece of code. 怎么理解“premature optimization is the root of all evil”？ 个人经验是在web开发中，如果早期不考虑数据库结构，各种数据接口的话，后期的扩展和优化会很难做，这句话是不是放之四海而皆准呢？ Premature optimization is the root of all evil. Good technical design is primarily about balancing several interrelated requirements. Resist this devil with all your might. Optimization: Title text: Premature optimization is the root of all evil, so to start this project I'd better come up with a system that can determine whether a possible optimization is premature or not. “Premature optimization is the root of all evil” - Donald Knuth. 9 years ago Permalink; Share Premature optimization is the root of all evil. A variant is due to my PhD advisor's father Michael Jackson: "The First Rule of Program Optimization… I mean that in the most literal and expansive way possible. I’d like to preface this discussion with the comment that premature optimization is actually the root of all evil. A few times, I've tried supplying the complete quote from Donald Knuth in order to explain that "premature optimization is bad" ↛ "all optimization is bad": We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil. You should design for efficiency, but you should not obsess about it, and most important of all, Thou shalt not sacrifice clarity for performance, unless and until you have evidence that you have no choice. This is crucial, since people often repeat the idea that “premature optimization is the root of all evil”, without acknowledging the full quote, which states that “we should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil. 1. … What I mean by that: let’s say you have a program that you know takes 10 minutes to play tic-tac-toe. That’s a common programming phrase. In the quest to scale and build out the organization you made the entire system sub-scale. September 6, 2020 October 11, 2020 Rohit Leave a comment. This is a classic case of premature optimization.
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