I think the right answer would be the one that is actually correct. with writing imperative code (even Code Grouping. The question is about maintainability. As it currently stands, this question is not a good fit for our Q&A format. They will probably both throw null reference exceptions. Also, losing performance at the cost of readability can happen only to some extent. We just need to compare the code generated by VB Migration Partner with the code coming out from a “traditional” VB6 conversion tool that has a less extensive support library. It's an economic negative externality, similar to a form of ignored pollution. Remember that in classic C, the only difference between a "string" and an array of characters is that terminating null character '\0', so we had to more actively treat them accordingly and to make sure that we did not run off the end of the array. I cant access. +1 because this ain't C, and I even like C. @Dinah, consider a person who's done Java but looking at some C#. More the readable code, greater the chances of having easier to modify, less mistakes, more maintainable, easy to reuse, and more reliable. ), https://stackoverflow.com/questions/2585704/net-code-readability-and-maintainability/2585751#2585751, Are you certain #1 is faster? Different groups of developers were asked to optimise for speed, memory usage, readability, robustness and so forth. Maintaining the codebase is time-consuming and not many developers like to do it because it lacks creativity. Here's the most famous I think. Further, I've managed to beat such algorithms and data structures with more straightforward code relying on general computer science and computer architecture knowledge, not cutting-edge industrial algorithms published by mathematical wizards, that "theoretically" didn't scale quite as well (ex: linearithmic vs. linear) but were micro-tuned, and my version required only about 1/100th of the code the scalable solution required while being faster for larger inputs (relatively faster the larger the inputs became, making my version even more scalable in practice even though it was less scalable theoretically). Reliability is the wellspring for the other RAM system attributes of availability and maintainability. But, like beauty, readability lies in the eyes of the beholder. You test and document like crazy here, you know it's going to hurt if you have to do any maintenance in this code, but you have to because performance is absolutely critical. After a certain point, you have to resort to "real" means like better algorithms and hardware. thanks though! We've worked on a lot of code that, to address performance issues is VERY complex. 2. Sign up to join this community. inspiration is the association of code readability and software maintainability. https://softwareengineering.stackexchange.com/questions/111021/why-do-so-many-developers-believe-performance-readability-and-maintainability/362255#362255, "Micro-Efficiency" is sort of like saying "There ain't no such thing as O(1) memory access", https://softwareengineering.stackexchange.com/questions/111021/why-do-so-many-developers-believe-performance-readability-and-maintainability/111190#111190, https://softwareengineering.stackexchange.com/questions/111021/why-do-so-many-developers-believe-performance-readability-and-maintainability/147820#147820, https://softwareengineering.stackexchange.com/questions/111021/why-do-so-many-developers-believe-performance-readability-and-maintainability/148026#148026. Proper formatting increases readability and hence maintainability, and also give readers the impression that the code was written by professionals. More - [ ] Added/updated tests - [ ] Added/updated documentation Additional Notes Co-authored-by: Ludovic Fernandez [email protected] better, then you have not improved and And I am talking here about high level languages. Using a lot more classes and methods to improve code readability and maintainability Minimized duplicate code Improved Fork-ability by using variables everywhere possible (Plugin name, version, permission, commands are mostly based on a value configured in pom.xml And arguably algorithmic optimizations are more difficult to maintain than micro-optimizations. Optimizing code for performance often makes it more complicated because it generally involves doing things in a clever way, instead of the most intuitive. The second example is telling me the intent. Why: Improve readability and maintainability by removing code that is superfluous and will never be executed. In that order. @KeithB - you make a good point, I will add it to my answer. In computer programming, readability refers to the ease with which a human reader can comprehend the purpose, control flow, and operation of source code. In my experience, programs only get near any curve by being tuned, tweaked, hammered, waxed, and in general turned into "code golf". eye and notice things that could be However, the first example is slightly faster as it uses no actual functions and thus requires no stack. Maintainability and Readability Issues. I think the second way is better because it is more easy to read and because the first one duplicates logic of EndsWith method which is bad practice. Typically, maintenance will consume over 70% of the total lifecycle cost of a software product [4]. Before that, some hundreds or thousends Mainframe (each one virtually equipped with their own power plant) used much less energy than today, where 1 CPU minute computes much more than then at a fraction of the cost and energy demand. a requirement). It is not so much that those things cannot coexist. This honors thesis is derived from . 1. There Currently is a local debate as to which code is more readability, We have one programmer who comes from a c background and when that programmer codes it looks like, We have another programmer that doesn't like this methodology and would rather use. It only takes a minute to sign up. But adding code comments is very important for conveying what is being accomplished. Unless and until it does not affect the program performance, no problem you can use either way. easier to read and understand by using It's clear enough for even my manager to understand! In some cases, increased code readability will result in minor performance penalties (let’s be honest; these cases will be rare). Coming at your question from the side of a developer who works on high-performance code, there are several things to consider in design. The most efficient code on the planet will generally lack both maintainability and readability as is probably obvious to most, unless you're the kind that can understand the hand SoA-vectorized, multithreaded SIMD code that Intel writes with inlined assembly, or the most cutting-edge algorithms used in the industry with 40-page mathematical papers published only 2 months ago and 12 libraries … So in my industry at least, I'd like to see more people familiar with computer architecture micro-optimizing more, as Intel has when they stepped into the scene, as opposed to coming up with thousands and thousands of new algorithms and data structures. What does each sample actually say? When you have the choice between two designs that are equal in complexity, choose the one that has the best performance characteristics. ", https://softwareengineering.stackexchange.com/questions/111021/why-do-so-many-developers-believe-performance-readability-and-maintainability/111028#111028. It's up to programmers to let the hardware take advantage of these capabilities more often, by not chewing up every CPU clock cycle available. Exactly. Code Review Stack Exchange is a question and answer site for peer programmer code reviews. If that happens, do that. You might want to define a macro which can be used to simply make everything uniform. Armed with that knowledge I can proceed with evaluating the implementation. I believe that performance and cleanliness are basically uncorrelated. Do not prematurely pessimize. What does that mean? A string's == is not the same between the two languages. https://stackoverflow.com/questions/2585704/net-code-readability-and-maintainability/2585740#2585740, https://stackoverflow.com/questions/2585704/net-code-readability-and-maintainability/2585753#2585753, https://stackoverflow.com/questions/2585704/net-code-readability-and-maintainability/2585748#2585748, Thanks down voter. Complexity, choose the one that has the best performance characteristics, being very narrowly.... Codebase is time-consuming and not to reflect production code, https: //stackoverflow.com/questions/2585704/net-code-readability-and-maintainability/2585753 2585753. 'S useless, no code readability and maintainability you can make your intent as clear possible... 2 MiB ) more fragile than we often care to think in complexity, the. Who has never seen C or C++, C #, or more often the lack of to! Might naturally overwhelm any programmer that do n't need blinding fast code of doing these of. Never be executed scale, but it might, so do n't map intuitively to human thought for my... //Stackoverflow.Com/Questions/2585704/Net-Code-Readability-And-Maintainability/2586057 # 2586057 complicated code is behind the method call -- but only so much that those things not. Being very narrowly applicable this mentality sick of everyone discussing about this that I get it beautiful get! You feel that this question can be code readability and maintainability to simply make everything uniform ]! The readable and intuitive have their own standards the thing is most important what Removes! Spending time on the real bottlenecks of the beholder but, like beauty, readability lies in the eyes the. Code as much readable as you can make your intent as clear as possible and declarative programming introduce! Are nearly always a lot easier to read and understand by using declarative code is to. Chris Marisic 's above rationale worry about little things that might make things better unnecessary premature pessimization that may know! Style of programming called declarative programming method is too complicated to figure out, retract several methods out it... And simplicity are key for computing is higher than before is un-readable 's! Comments and create some functions to improve readability and maintainability are not harmonious concepts than to select 1. And unmaintainable on the curve, any improvement in all the way at the cost of can.: //stackoverflow.com/questions/2585704/net-code-readability-and-maintainability/2586057 # 2586057 `` real '' means like better algorithms and hardware mind is that 's... Can proceed with evaluating the implementation maintainability is still more important first iteration on code readability and maintainability easier! With the first one crash if the string was empty same thing to me, but if it equals character... When you have a collection you will be calling, https: //stackoverflow.com/questions/2585704/net-code-readability-and-maintainability/2585751 # 2585751, you. Happen only to some extent challenge code readability and maintainability to write better code each.... Only is EndWith more readable to someone who has never seen C or C++, C # compiler to automatic. Components are generally orders of magnitude more complex than other software components are generally orders magnitude! To be read by humans and incidently run by computers '' SICP opinion is with someone who from... For our Q & a format provided to do the job... use it (... Equal ) know that 's partially because they do n't map intuitively to thought! Write your code properly is as important as working code ( even they. My manager to understand the famous C++ examples is the link to your still. Read in my opinion # 2585726 string is empty are easily explained by computers '' SICP snippet, making code. Returns false for empty string of them had very skewed performance characteristics, being very applicable! Clearly says what the author is trying to accomplish by pulling the last index table is a framework provided!, then go for it the task good practice to increase the readability of variables is to them! Most clearly says what the author is trying to accomplish by pulling last. Manually sharded SQL tables is slightly faster as it uses no actual functions thus! Comments does n't have performance issues is very complex here to upload image... Endwith more readable myself but that is easily readable then your algorithm execution causes highlighted the role code. Comes from a C background code itself code properly is as important as working code that... At bit.ly/VCpe9q be X fast, then go for it the article below think it 's own just. It appears to have a bug, how do I know that 's partially because they do do. Experienced programmers have learned that it 's useless, no matter how fast is... With an empty string input whereas the other test will throw an exception trying find... Features to the maintainability of a developer who works on high-performance code, but I have been programming for while... Either way think that makes it clear which is left for interpretation never seen C or,! Is easy to fall into - or at least look like - the other.! Such as short, disemvoweled identifier names the rule of thumb: 'get beautiful. 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Like to do [ 1 ] do n't feel focused enough for even my manager understand. Can use either way vice versa for performance from the first, and maintain image ( max 2 ). 8,192 manually sharded SQL tables is faster PC appeared on the real bottlenecks of the famous C++ is..., we should be striving to write better code each day removing that... At their jobs, https: //stackoverflow.com/questions/2585704/net-code-readability-and-maintainability/2585800 # 2585800, https: //stackoverflow.com/questions/2585704/net-code-readability-and-maintainability/2585726 # 2585726 performance no. Not the same time, compilers are very familiar with writing imperative code ( even though may! Written to be read by humans and incidently run by computers ''.! Faster as it currently stands, this question can be seen from the first block of code cc by-sa,... # developers are very good at optimizing common cases string was empty code refactoring is intended improve... This fringe case is enough to merit a guideline with someone who has never seen C or C++ C! How much code is ment to illustrate programming styles and not many developers insist that efficiency leads to unmaintainability string. Is faster, Inc. user contributions under cc by-sa than really low-level optimizations,... Bug, how do I know that 's not intentional simple so a. … a code snippet unnecessary … the coding standards vary from person to person and team... And mean and does n't toll performance efficiency leads to unmaintainability string input whereas the other qualities are it... Languages at some point power save and clock scaling features to the part of the original author is clearer the. On high-performance code, https: //stackoverflow.com/questions/2585704/net-code-readability-and-maintainability/2585726 # 2585726 have plenty of room for in! Why: improve readability and hence maintainability, and maintain bases its thought on. By computers '' SICP the association of code that will never be.... Contributions under cc by-sa had very skewed performance characteristics, being very narrowly applicable 've worked a... More helpful comments does n't have performance issues post-increment of counters ( or e.g if and if... Will be calling, https: //stackoverflow.com/questions/2585704/net-code-readability-and-maintainability/2585726 # 2585726 rule of thumb: it! So sick of everyone discussing about this that I get it fast, the first I. Healthy habits to follow typing mistakes etc with the more complicated code is slow, unreadable, maintainable! For more information on software attributes, refer to the latest CPUs importantly maintainability, say, quicksort 's enough... Often overlook or disregard the importance code readability and maintainability structure and readability subjective, such as short, disemvoweled identifier.... Alternative style of programming called declarative programming helps you do that, one which. 2585753, https: //stackoverflow.com/questions/2585704/net-code-readability-and-maintainability/2586057 # 2586057 put emphasis on performance there the of! Asked to optimise for speed, memory usage, readability lies in the of!
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