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  Why MySQL 8 drops support of query cache

Many of you may have heard or used MySQL's query cache, because it used to be a popular way to improve MySQL's performance. As an important feature for improving MySQL's performance, the query cache was often recommended as a solution for slow queries. However, why has MySQL 8 abandoned the query cache? Today, we will analyze and explore this decision. What is query cache? According to official document: The query cache stores the text of a SELECT statement together with the correspon...

   MYSQL 8,QUERY CACHE     2023-03-11 09:05:17

  Find files by size in Linux

In Linux systems, you may encounter a situation where there is no enough space on the system while you are trying to install some new packages or writing some data. In this case, you may want to clear some unneeded files. A frequent need will be find the largest files in the system so that they can be deleted first and disk space can be released quickly. In this post, we will show a simple command to find files by size so that we know what files are taking the specified space on the system, This...

   LINUX,FILESIZE,FIND     2020-04-25 08:02:45

  UDP vs. TCP

Introduction Hi, I’m Glenn Fiedler and welcome to the first article in my online book Networking for Game Programmers In this article we start with the most basic aspect of network programming, sending and receiving data over the network. This is just the beginning – the simplest and most basic part of what network programmers do, but still it is quite intricate and non-obvious as to what the best course of action is. Take care because if you get this part wrong it will have ...

   Game design,Networking,Communication,TCP,UDP,Design     2012-02-27 04:49:53

  Cross platform portable class libraries and .net

What’s that happy little feature developers are admiring? Oh that’s Portable class libraries that have been chugging along, during their thing and delivering to the point results wherever used by developers. If a developer is not writing .net applications for multiple targets, then he likely hasn’t bumped into these libraries. However, developers who are writing .net apps and want these apps to run on every platform from watches to tablets to desktops to the cloud, they can ava...

   asp.net, Cross platform     2015-01-12 05:06:44

  Designing Great API Docs

Writing documentation is one of those things that is dreaded by many developers. It takes a lot of effort and time to get right. And too often, people take shortcuts. This is sad, because well designed documentation is the key to getting people excited about your project, whether it's open source or a developer focused product. In fact, I argue that the most important piece of UX for a developer product isn't the homepage or the sign up process or the SDK download. It's the API documentati...

   API docs,Design API docs,Advice     2012-03-09 23:15:00

  ByteBuffer in Java

ByteBuffer is introduced in java.nio since Java 1.4. It provides a way of representing raw structured data such as from a file or from network. It enables fast access of underlying data compared to traditional ways like byte[] Prior to Java 1.4, if you want to represent a structured raw data, you need to create a byte[] and then having a set of checks to delimit the byte array to get the expected tokens. There are three ways to create a ByteBuffer: Wrapping an exiting array by calling ByteBuffe...

   JAVA,BYTEBUFFER,ALLOCATION     2015-07-08 03:17:44

  C++ and Java over Python in Google products

In Google, most of the products are written in C++ and Java. They usually don't choose Python to write their product stack. What's behind the decision to choose one language over the other in Google? Let's get to read some opinions from Robert Love, a Google software engineer. Love said he couldn't imagine writing let alone maintaining a large software stack in Python. They use C++, Go, and Java for production software systems, with Python employed for scripting, testing, and tooling.There are a...

   Java,Python,Google     2014-07-20 04:39:09

  Web programs written in C++ are no big deal

I had an interesting conversation with a friend the other day. She wanted to try putting together a weekend "hackathon" just to see what we could build. It would be one of those fun things where we just start tinkering and see what comes out of it. Somehow, this conversation got to the topic of libraries, programming languages, and frameworks. Then it got a little weird. I guess the current "shiny" thing is still more-or-less Ruby, and particularly when used with Rails. Oh, I suppo...

   C++,Web design,Library,Web app     2012-01-11 11:57:26

  Penrose Tiling in Obfuscated Python

Here’s a Python script which renders some Penrose tiling. Yes, this is valid Python code: _ =\ """if! 1:"e,V=100 0,(0j-1)**-.2; v,S=.5/ V.real, [(0,0,4 *e,4*e* V)];w=1 -v"def! E(T,A, B,C):P ,Q,R=B*w+ A*v,B*w+C ...

   Python,Disorder,Code,Writing,Style     2011-09-14 11:57:34

  What drives the popularity of Node.js?

JavaScript is a programming language which can be used on both front end and back end. Its popularity should mainly be attributed to its power in front end side. While people seem not realize its power in back end until the appearance of Node.js.  Node.js is a server-side software system designed for writing scalable Internet applications, notably web servers. Programs are written on the server side in JavaScript, using event-driven, asynchronous...

   Node.ks,Popularity,NPM     2013-07-24 01:22:58