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Understand GoLang WaitGroup internals and how it works
Background Before getting into the main content, let me give a brief introduction to WaitGroup and its related background knowledge. Here, the focus is on the basic usage of WaitGroup and the fundamental knowledge of system semaphores. For those who are familiar with these, you can skip this section directly. WaitGroup WaitGroup is one of the most common concurrency control techniques in Golang, and its function can be roughly compared to the join() in concurrency control of other languages' mul...
GOLANG,WAITGROUP,SOURCE CODE 2023-04-26 08:02:01
Notes on Programming in C
Introduction Kernighan and Plauger's The Elements of Programming Style was an important and rightly influential book. But sometimes I feel its concise rules were taken as a cookbook approach to good style instead of the succinct expression of a philosophy they were meant to be. If the book claims that variable names should be chosen meaningfully, doesn't it then follow that variables whose names are small essays on their use are even better? Isn't MaximumV...
Why developer-friendliness is central to API design
Today, APIs play a bigger role in software development than ever before. The evolution of computing has been dominated by ever-increasing levels of abstraction; the use of higher-level languages, of course, but also the development of platforms, libraries, and frameworks. Professor Douglass C. Smith claims the progression of this second category far outpaced the development of programming languages. Developers are also noticing that difficulty has shifted from designing algorithms a...
API,User friendly,Significance, Improve quality 2011-12-21 02:29:54
Difference Engine: Luddite legacy
AN APOCRYPHAL tale is told about Henry Ford II showing Walter Reuther, the veteran leader of the United Automobile Workers, around a newly automated car plant. “Walter, how are you going to get those robots to pay your union dues,†gibed the boss of Ford Motor Company. Without skipping a beat, Reuther replied, “Henry, how are you going to get them to buy your cars?â€Whether the exchange was true or not is irrelevant. The point was that any increase in productivity required...
Artificial intelligence,Engine,Difference,Human,Computer 2011-11-07 08:33:16
Comparing Floating Point Numbers, 2012 Edition
We’ve finally reached the point in this series that I’ve been waiting for. In this post I am going to share the most crucial piece of floating-point math knowledge that I have. Here it is:[Floating-point] math is hard.You just won’t believe how vastly, hugely, mind-bogglingly hard it is. I mean, you may think it’s difficult to calculate when trains from Chicago and Los Angeles will collide, but that’s just peanuts to floating-point math.Seriously. Each ti...
Floating point number,Comparison,True value 2012-02-23 07:11:03
Erlang Style Concurrency
Introduction On an evolutionary scale of innovation from one to ten (one being Bloomberg and Citi Group, eight being Google and Cirque Du Soleil, and ten being the company you couldn't imagine in your wildest dreams), the company I work for is about a three1. Being employed by this bastion of ingenuity affords me certain opportunities I can't get elsewhere. For example, every developer gets to interview potential...
Erlang,Concurrency,Lock,Message,Innovation 2012-01-03 10:44:44
PHP: a fractal of bad design
Preface I’m cranky. I complain about a lot of things. There’s a lot in the world of technology I don’t like, and that’s really to be expected—programming is a hilariously young discipline, and none of us have the slightest clue what we’re doing. Combine with Sturgeon’s Law, and I have a lifetime’s worth of stuff to gripe about. This is not the same. PHP is not merely awkward to use, or ill-suited for what I want, or suboptimal, or...
Don’t Call Yourself A Programmer, And Other Career Advice
If there was one course I could add to every engineering education, it wouldn’t involve compilers or gates or time complexity. It would be Realities Of Your Industry 101, because we don’t teach them and this results in lots of unnecessary pain and suffering. This post aspires to be README.txt for your career as a young engineer. The goal is to make you happy, by filling in the gaps in your education regarding how the “real world†actually works. ...
Career,Programmer,Advice,Low level,Development 2011-10-29 07:09:23
Is Toutiao taking general content creators seirously?
Tiktok is now very popular among the Z-generation around the world. This is an app created by the Chinese company ByteDance. In China, the Chinese version of Tiktok called Douyin is not the only popular app created by ByteDance, there are a few other apps created by ByteDance are also popular such as Jinri Toutiao, a news app famous for its recommendation algorithm similar to Tiktok, also Huoshan Video, another video app similar to YouTube. This Toutiao app encourages general people to create co...
JINRI TOUTIAO,CONTENT CREATION,TOUTIAO,BYTEDANCE 2021-10-03 01:10:27
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