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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...
Use of log in programming
Usually, The purposes of log are for troubleshooting and displaying program running status. Good log will help us locate the error easier. Many programmers think log in programs is very simple, but it's not an easy task to write log codes to efficiently locate the error. Here we discuss about program log in three aspects: Where to log What to log Log styles to be avoided Where to log 1. When calling external functions When your program is calling some external functions which are not written b...
Log, Programming,Debug 2012-11-28 11:42:23
UIWebView Secrets - Part1 - Memory Leaks on Xmlhttprequest
My first blog post on iphone subject reveal a big memory bug when using UIWebView component. This is the (only one) component to display some HTML content in an iphone interface. UIWebView object has a lot of differents issues and I’m going to highlight the biggest of them. Actually, all XMLHttpRequests used in javascript code are fully leaking!!! I mean when you do a request that retrieve 100ko of data, your memory used grow up for 100ko! This bug is not always active, but almost always....
XMLHttpRequest,Memory leak,Mobile device,UIWebView 2011-11-25 13:46:30
Instagram gains 78% more visits after acquired by Facebook
Since Instagram was acquired by Facebook, its popularity continually heats up. Some data shows that independent views of Instagram surges 78%.In April, Instagram’s website saw a 78 percent uptick in unique visitors in the U.S., making the web property of the photo-sharing phenom the highest gaining site on the Internet for the month, according to analytics firm comScore.. For an application whose all functions are present in the mobile terminal, the site of Instagram is onl...
Is Mobile App Required For Your Business?
Having a mobile app for your business is the latest trend. Every business, large or small is aiming for developing a mobile app to attract customers and boost the sales. Products or services offered by the business do not matter in this case. The main purpose is to keep your users updated and engaged. An app is a perfect tool for generating new customers too. The statistics reveals that numbers of mobile internet users are more than the desktop users. It clearly means that businesses must ...
App Development Services, Outsource Android App Development, Android App Development Experts 2015-03-05 00:47:46
JavaScript Is Not A Language
Recently people presented arguments for and against using CoffeeScript. I felt the argument against was pointless and obviously wrong, but I couldn't figure out why, and I thought the counterargument for was kind of toothless and irrelevant. I've figured out the real issue.The real argument for CoffeeScript is that JavaScript is not really a language.Years ago I read something which explained, in my opinion, why Lisp has never achieved the mainstream adoption its passionate advocates belie...
JavaScript,Not a language,CoffeeScript,Model 2011-12-29 08:46:15
Something you may not know about Shell
Shell is also called command line interface, it is the interface between *nix users and computer. Shell is a program which provides service to access OS kernel services. This article is to introduce some not so well known but useful and interesting knowledge about shell. Wiki shell was born almost at the same time as Unix. The first UNIX shell was written by Ken Thompson in 1971 and its name is Thompson sh. It's older than Linux kernel. The default Shell in most *nix and MacOS is bash, bash was...
The Death of File Sharing
Last week’s violent government attack on the hugely popular site Megaupload — the U.S. government arresting Belgian citizens in New Zealand, of all places, and stealing at gunpoint servers bank accounts and property — has sent shock waves through the entire digital world. The first shock was the realization that the gigantic protest against legislative moves (SOPA and PIPA) that would smash the Internet turned out to be superfluous. The thing everyone wanted to prevent is al...
File sharing,Death,Trend,Cloud 2012-02-01 04:44:06
Code to Create Custom Share Buttons
Interested in sharing your B2B content on Facebook, Twitter, LinkedIn or delicious? Do multi-option social media sharing tools such as ShareThis seem like overkill?That was our conclusion after researching the social media sites on which readers are most likely to share content from our blog focused on solutions to a wide range of business challenges, What Works for Business. We decided that Facebook, LinkedIn, delicious, and Twitter were the sites on which our target busines...
Share button,Web content,Facebook,Custom 2011-08-24 10:40:29
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