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  Obviously Correct

What do automatic memory management, static types and purity have in common? They are methods which take advantage of the fact that we can make programs obviously correct (for some partial definition of correctness) upon visual inspection. Code using automatic memory management is obviously correct for a class of memory bugs. Code using static types is obviously correct for a class of type bugs. Code using purity (no mutable references or side effects) isobviously c...

   Memory management,Code,Static,Purity     2011-11-07 08:13:05

  Why I left Google

Ok, I relent. Everyone wants to know why I left and answering individually isn’t scaling so here it is, laid out in its long form. Read a little (I get to the punch line in the 3rd paragraph) or read it all. But a warning in advance: there is no drama here, no tell-all, no former colleagues bashed and nothing more than you couldn’t already surmise from what’s happening in the press these days surrounding Google and its attitudes toward user privacy and software develo...

   James Whittaker,Google,Leave,Microsoft,Ad     2012-03-14 13:43:44

  It’s Not China; It’s Efficiency That Is Killing Our Jobs

The majority of wealth is now concentrated at the top of the social ladder. This is particularly true in the US, and the gap is widening every year. This, I believe, is because of efficiency, not China. Today the best ideas can efficiently and quickly propagate worldwide, and everyone can efficiently find them and buy them. This makes the owners of these ideas filthy rich, and those ideas that are not the best, can hardly survive. It’s not just transfer of information that is fast; wealth...

   China,Efficiency,Job,Opportunity,Wealth     2011-10-23 11:43:18

  Efficiency of code execution

If you want to optimize your program codes, you need to find their Hotspot, i.e, the codes which are executed most frequently. If you can optimize this portion of codes a bit, you may gain much improvement of your code efficiency. Here I give you three examples about efficiency of code execution.1. PHP's Getter and Setter (From Reddit)This example a quite simple, you can skip it if you want.Consider the code below, we can find it's slower when we use Getter/Setter method to read a member variabl...

   Code, Efficiency,Analysis,Trick     2012-07-13 10:59:21

  Consistency between Redis Cache and SQL Database

Nowadays, Redis has become one of the most popular cache solution in the Internet industry. Although relational database systems (SQL) bring many awesome properties such as ACID, the performance of the database would degrade under high load in order to maintain these properties. In order to fix this problem, many companies & websites have decided to add a cache layer between the application layer (i.e., the backend code which handles the business logic) and the storage layer (i.e., the SQL d...

   REDIS,CACHE,DATABASE     2019-07-07 08:14:16

  Taking C Seriously

Dennis Ritchie, a co-creator of Unix and C, passed away a few weeks ago, and was honored with many online tributes this weekend for a Dennis Ritchie Day advocated by Tim O’Reilly.It should hardly be necessary to state the importance of Ritchie’s work. C is the #2 language in use today according to the TIOBE rankings (which, while criticized in some quarters, are at least the best system we currently have for gauging such things). In fact, TIOBE’s pre...

   C,Efficiency,Memorization,Dennis Ritchie     2011-11-03 13:42:14

  YOU'RE A DEVELOPER, SO WHY DO YOU WORK FOR SOMEONE ELSE?

As a developer, you are sitting on a goldmine. Do you even realize it? No, seriously, a @#$% goldmine!Never in modern history has it been so easy to create something from scratch, with little or no capital and a marketing model that is limited only by your imagination.Think about the biggest websites you visit or use on a regular basis: Facebook, Twitter, Flickr, Foursquare, or even Google for that matter -- all of them were created by developers who created something from little more than an id...

   Developer,Work,Startup,Money,Idea,Time     2011-11-06 14:35:48

  Be Aware of these 10 mistakes while designing Your Mobile App!

So you have finally decided to enter the world of technology and you are going to design an application for your business. The time has become when you have to give all the nitty-gitty grins a look and design your own mobile app for promoting your business online. Well when you have finally decided to design your mobile application, here are some mistakes that you are not allowed to make. Have a look:   Do Not Start Designing Your App Without Wireframes Normal 0 false ...

       2014-12-11 02:12:02