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— Donald Knuth对于程序优化,我一直采取保守的态度,除非万不得已。但是随着业务的不断发展,程序越来越复杂,代码越写越多,优化似乎是终有一天会到来的事情。那么对于一个典型的后台服务接口,我们可以从那些方面入手进行优化呢? Yet we should not pass up our opportunities in that critical 3%. "Premature optimization" is a phrase used to describe a situation where a programmer lets performance considerations affect the design of a piece of code. Premature Optimization is the Root of all Evil Donald Knuth was indeed right when he said that, "premature optimization is the root of all evil." 9 years ago Permalink; Share Discusses code optimization and how optimizing premature is considered the root of all evil. Notable among these are clarity, efficiency and simplicity. Premature optimization is the root of all evil.--C. Yet, we should not pass up our opportunities in that critical 3%. Bad programmer - no cookie! 4, Dec. 1974. In my experience it's used more as an excuse for writing sloppy code that is obviously horribly inefficient, or to otherwise rail against making changes that aren't deemed necessary for whatever reason e.g. What’s more, the time and energy spent on optimization is wasted as our work changes. Premature optimization is the root of all evil A model for evolving your organizational design. Premature optimization is the root of all evil (or at least most of it) in programming. Keep the spotlight on Time. No one actually interprets "premature optimization is the root of all evil" as an argument against all optimizations, do they? Premature Optimization is the Root of All Evil! This is a classic case of premature optimization. for debugging purposes. I agree wholeheartedly. The Second Rule of Program Optimization (for … Premature optimization is the root of all evil. Premature optimization is the root of all evil (or at least most of it) in programming. Premature optimization is the root of all evil September 6, 2020 October 11, 2020 Rohit Leave a comment An antipattern that I see in startups constantly is Senioritis . We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil. Premature Optimization Is the Root of All Evil listed as POITROAE. “Premature optimization is the root of all evil.” ― Donald Ervin Knuth, The Art of Computer Programming, Volume 1: Fundamental Algorithms A variant is due to my PhD advisor's father Michael Jackson: "The First Rule of Program Optimization: Don't do it. We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil 私たちは、時間の約97%を占めるわずかな効率に関しては忘れるべきである: 時期尚早な最… It’s all highly scientific now: I have moved ... Beware of the evil … (Knuth, Donald. 細かな効率については、約97%の場合忘れれば良い。なぜなら、時期尚早の最適化は諸悪の根源だからだ。 Translation notes: I just translated "say about" as 約. However, when supplying the entire quote, these people sometimes actually become more convinced that what I'm doing is Premature Optimization™ and dig in and refuse to listen. It is time consuming and, by definition, “premature”, so it is not a good thing to do. Donald Knuth made the following two statements on optimization: "We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil. A. R. Hoare. As computer scientist Donald Knuth rightly said: “Premature optimization is the root of all evil.” For all of we programmers,we should always remember that "Premature optimization is the root of all evil". "We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil." Good technical design is primarily about balancing several interrelated requirements. ... to DigitalOcean platform: they provide a decent virtual server for $5/month, with static IP address to boot. This was originally said by Donald Knuth, the father of the analysis of algorithms. Premature Optimization is the Root of All Evil Jamie King. Premature optimization is the root of all evil. Donald Knuth, the renowned computer scientist, once said that “Premature optimization is the root of all evil.” He was warning computer programmers about taking it too far with getting their code Just Perfect. It's not only valid for programming, but I would also … Mark-Jason Dominus. "and so on Links. laziness. Yet we should not pass up our opportunities in that critical ... but tracking down the origin of this quote I found that it was actually Knuth who said … Blog; Articles; Code; Talks; Resume; Contact; Home. Be mindful of premature optimization. Yet we should not pass up our opportunities in that critical 3%. In a few FORTRAN codes I have, the original programmers made use of boolean short circuiting. It’s actually fun to sweat the small stuff. It makes no difference to state that something is half quicker on the off chance that it was at that point quick enough to begin. Their guidance helped me in all the time of research and writing of this thesis. The blog post quotes Donald Knuth who said “Premature optimization is the root of all evil.” For sizable projects, premature optimization is practically procrastination. Rohit Sharma: Sep 6: ... All around this thinking is welcome to everybody in the company. Yet we should not pass up our opportunities in that critical 3%. 667–673 Share So I said I’m going to formalize my training and get a piece of paper which shows I can do ... I’d like to preface this discussion with the comment that premature optimization is actually the root of all evil. A lot of the postings in this section of Java Ranch strike me as worrying about performance far too early in the system's life cycle. We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil. But optimizing our work can distract us from finding and completing the work that matters. Not really. (c) by Donald Knuth Naomi Nosonovsky, Sr. Programmer-Analyst My blog Tuesday, September 7, 2010 6:41 PM Premature optimization is the root of all evil in programming. POITROAE - Premature Optimization Is the Root of All 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 ... We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil. This is going to be a very short chapter, because the main thing Unix experience teaches us about optimizing for performance is how to know when not to do it. Structured Programming with go to Statements, ACM Journal Computing Surveys, Vol 6, No. We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil. Acknowledgements Foremost, I would like to express my sincere gratitude to my advisors Prof. Jesus Labarta and Prof. Eduard Ayguade for the continuous support of my Master Thesis study and research, for their patience, motivation, enthusiasm, and immense knowledge. ( When again,I come back to the 'Data Structure and Algorithm',following the algorithms that the .net provides,using the '.net reflector',I realise that I was too much care about something(for i am not work strict to memory and CPU circle limits). $ $ Premature optimization is the root of all evil. Premature Optimization Is the Root of All Evil - How is Premature Optimization Is the Root of All Evil abbreviated? There's plenty of 'evil' in statistics that doesn't relate to optimization. Looking for abbreviations of POITROAE? It feels like progress. As Knuth said, We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil. Guido said it would cause too much disturbance… ikriv June 7, 2020 0 Python has two ways to convert an object to a string: str(x) and repr(x). • Center of attraction. A wiser man than myself once said: We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil. p.268.) Premature Optimization is the Root of All Evil H/T: @lpolovets Donald Knuth was specifically talking about algorithms in computer software, but the lesson applies broadly to product development, startups, and self-improvement. I guess just be aware that premature optimization is the root of all evil. “Premature optimization is the root of all evil” is a famous saying among software developers. As per the saying “Premature optimization is the root of all evil” you should try and resist them, but how, well with the following tips. I don't know that I agree with the statistics paraphrase*. str is supposed to be user-readable, and repr is more technical, e.g. Premature optimization is the root of all evil. A good programmer will not be lulled into complacency by such reasoning, he will be wise to look carefully at the critical code; but only after that code has been identified. We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil. “Premature optimization is the root of all evil” - Donald Knuth. This can result in a design that is not as clean as it could have been or code that is incorrect, because the code is complicated by the optimization and the programmer is distracted by optimizing. The best implementation would be clear, efficient and simple. Page 2. Its source is credited to Donald Knuth . This is something which often comes up in Stack Overflow answers to questions like "which is the most efficient loop mechanism", "SQL optimisation techniques? Variant in Computer Programming as an Art , 1974 Turing Award Lecture[1], Communications of the ACM 17:12 (December 1974), pp. As a result, optimization or performance tuning is often performed at the end of the development stage. Premature Optimization is (Still) the Root of All Evil Published on June 24, 2019 June 24, 2019 • 36 Likes • 2 Comments Premature is considered the root of all evil ” - Donald Knuth software developers good technical design is primarily balancing... Are clarity, efficiency and simplicity optimizations, do they in programming actually fun to sweat the stuff! Interprets `` premature optimization is the root of all evil a model for evolving your organizational design, should! Sep 6:... all around this thinking is welcome to everybody in the.... 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