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SEARCH KEYWORD -- performance

  Why Dynamic Programming Languages Are Slow

In a statically typed language, the compiler knows the data-type of a variable and how to represent that. In a dynamically-typed language, it has to keep flag describing the actual type of the value of the variable, and the program has to perform a data-dependent branch on that value each time it manipulates a variable.  It also has to look up all methods and operators on it. The knock-on effect of this on branching and data locality is lethal to general purpose runtime performance. T...

   Dynamic language,Slow,Analysis     2012-03-26 15:33:11

  Hail the return of native code and the resurgence of C++

Programming language trends come and go. First, Java is the hot new language, then it's Python, then Ruby steals the limelight, then it's back to JavaScript. But the latest language darling is probably the last one anyone expected. Believe it or not, 2011 could be the year of C++. Last week, the latest version of the ISO C++ Standard was approved by unanimous vote. It's the first major revision of the language in 13 years. Now officially known as C++11, the new standard introduces features desig...

   C++,Future,Return back,Popular,Local dev     2011-08-24 02:20:24

  The Trouble With Bright Kids

It's not easy to live up to your fullest potential. There are so many obstacles that can get in the way: bosses that don't appreciate what you have to offer, tedious projects that take up too much of your time, economies where job opportunities are scarce, the difficulty of juggling career, family, and personal goals. But smart, talented people rarely realize that one of the toughest hurdles they'll have to overcome lies within. People with above-average aptitudes — the ones we ...

   Smart,Confidence,Hardworking,Trouble,Bright kids     2011-11-29 08:33:03

  Deep Understanding of ReentrantLock: Unlocking the Mysteries of Java Concurrent Programming

ReentrantLock introduction ReentrantLock is a class in the Java concurrent package, java.util.concurrent.locks, and is an implementation of the Lock interface. As its name suggests, it is a reentrant mutual exclusion lock. A mutual exclusion lock is a synchronization tool used to protect shared resources, ensuring that only one thread can access the resource at a given time. Reentrant means that a thread can acquire the same lock multiple times without causing a deadlock. This lock provides some...

   JAVA,REENTRANTLOCK,CONCURRENCY,MULTITHREADING     2023-05-22 08:01:13

  Should Small IT Companies Compete for Government Projects

No matter where in the world you look, you will find that various government agencies spend enormous amounts of money to procure products and services from outside companies. And while most of us immediately think about construction projects and perhaps defense contractors, a huge portion of government projects over the last decade or so were in the IT sector. In essence, governments on all levels often require services that their existing employees cannot handle and they invite outside IT comp...

   IT, BUSINESS, GOVERNMENT CONTRACTS     2017-12-28 17:51:09

  App Store, Most Effective Weaponry In Apple’s Armor

Apple’s most effective and effectual weaponry is its app store. Surprisingly however, the first generation iPhone did not support any Mobile apps, and Steve Jobs was actually proud of this fact. Back then, in 2007, third party mobile apps were not allowed on the iPhone. Jobs in-fact announced that Mobile app developers could use the most modern standards and write customized mobile apps for the iPhone web browser. He said, “We think we’ve got a very sweet story for you. You can...

   Mobile app developers, customized mobile apps, software development kit,     2015-07-28 03:26:19

  Apple unveils iPad Mini

Apple unveiled iPad family's new product -- iPad Mini, it means that Apple gets into 7 inch tablet PC market now formally. iPad mini, has a 1024*768 resolution 7.9-inch screen, It has the same resolution as iPad 2. As a low-end product of iPad family, iPad mini still retains the front and rear camera, a dual-core A5 processor, battery life time is 10 hours. Apple said that the iPad mini battery is the thinnest and biggest in iPad family. Previously the media said the smallest storage space of iP...

   iPad mini,Price     2012-10-23 15:10:41

  The Web Is Wrong

The Analogies Are Wrong Originally, web pages were static documents, and web browsers were static document viewers; there was text, some formatting, and images—if you could pay for the bandwidth to serve them. Hyperlinks were the really big thing, because they were the main point of user interaction—but what a powerful thing they were, and still are. Then along came CGI and Java, and the web was transformed: all of a sudden, a web browser became a way to serve interactive co...

   Web,Feature,Static document,CSS,Text     2011-12-31 15:43:53

  Building the new AJAX mail UI part 2: Better than templates, building highly dynamic web pages

This is part 2 of a series of technical posts documenting some of the interesting work and technologies we’ve used to power the new interface (see also part 1, Instant notifications of new emails via eventsource/server-sent events). Regular users can skip these posts, but we hope technical users find them interesting. As dynamic websites constructed entirely on the client side become de rigueur, there are a number of templating languages battling it out to become the One True Wayâ„...

   Web design,Dynamic,Ajax,UI     2012-02-21 05:32:29

  Crazy! 618 million daily active users on Facebook

Facebook released 2012 Q4 financial report. Facebook total revenue in the fourth quarter of 2012 is $1.585 billion, an increase of 40% over the same period last year, about 23% of the total revenue are from mobile advertising. Net profit is $64 million, down 79% over the same period last year.Now Facebook monthly active users reach 10.6 million, daily active users reach 618 million. The daily active users from mobile are more than the daily active users from desktop side the first time.In the e...

   Facebook,Financial report,Mobile     2013-01-31 03:13:06

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