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SEARCH KEYWORD -- 10 BEST PROGRAMMING LANGUAGES OF 2016

  How Query Optimizer Works in RDBMS

In a previous post, we discussed how the various relational operators are implemented in relational database systems. If you have read that post, you probably still remember that there are a few alternative implementations for every operator. Thus, how should RDBMS determine which algorithm (or implementation) to use? Obviously, to optimize the performance for any query, RDBMS has to select the correct the algorithm based on the query. It would not be desirable to always use the same algori...

   DATABASE,DATABASE DESIGN,DATABASE OPTIMIZATION     2019-04-20 07:26:32

  Fear of Ignorance

This past week, I was interviewing a candidate for a VP role along with two of our engineering leads. Everyone in the room excluding myself was classically “technical” – they could write code, had experience solving hard software problems and a background in computer science. I wrote my last line of PHP in 2004, and it had to be rewritten by a real programmer within 6 months.During the interview, we had the following exchange (due to an imperfect memory, I’ll ...

   Leader,Team,Technical,Leadership,Ignorence     2011-11-21 10:03:03

  Stuff The Internet Says On Scalability For September 16, 2011

Between love and madness lies HighScalability:Google now 10x better: MapReduce sorts 1 petabyte of data using 8000 computers in 33 minutes; 1 Billion on Social Networks;Tumblr at 10 Billion Posts; Twitter at 100 Million Users; Testing at Google Scale: 1800 builds, 120 million test suites, 60 million tests run daily.From the Dash Memo on Google's Plan: Go is a very promising systems-programming language in the vein of C++. We fully hope and expect that Go become...

   Scalability,Go,Google,MapReduce,Muppet,M     2011-09-20 11:22:36

  Java Sequential IO Performance

Many applications record a series of events to file-based storage for later use.  This can be anything from logging and auditing, through to keeping a transaction redo log in an event sourced design or its close relative CQRS.  Java has a number of means by which a file can be sequentially written to, or read back again.  This article explores some of these mechanisms to understand their performance characteristics.  For the scope of this article I will be using pre-a...

   Java,IO,Sequential,Blocking     2012-02-23 07:09:10

  Cracks in the Foundation

PHP has been around for a long time, and it’s starting to show its age. From top to bottom, the language has creaky joints. I’ve decided to take a look at how things got to this point, and what can be (and is being) done about it. I start out pretty gloomy, but bear with me; I promise it gets better. In the Beginning, There Was Apache and CGI And there was much rejoicing. In 1994, Rasmus Lerdorf created the “Personal Home Page Tools,” a set of CGI binaries wri...

   PHP,History,Foundation design,Compatibility     2011-12-18 01:03:54

  Hello, Kernel!

When we learn module programming, the first small program must be hello, kernel!. For a novice, how do we avoid some mistakes and how to fix the bugs we have when writing the first module program? Is there any example we can refer to? Here is one example. 1. Write the hello.c 01 #include <linux/init.h> 02 #include <linux/module.h> 03 #include <linux/kernel.h> 04 //Compulsory 05 //Module lincese declaration 06 MODULE_LICENSE("GPL"); ...

   module,kernel,Linux     2013-05-03 03:33:52

  HTML5 and Accessibility

Accessibility for people with disabilities is a legal responsibility in many countries. It's also the right thing to do, and one of the characteristics distinguishing professional developers from the WWWs: WYSIWYG-wielding wannabes. But for many, accessibility has been a somewhat black art, requiring adding extra stuff to your code like alt text, table summaries, ARIA information that can be difficult to test by developers who are not assistive technology users themselves.The arrival of HTML5 ha...

   HTML5,Accessibility,Video,Music,Canvas     2011-08-19 08:13:44

  How to Ace a Google Interview

Imagine a man named Jim. He's applying for a job at Google. Jim knows that the odds are stacked against him. Google receives a million job applications a year. It's estimated that only about 1 in 130 applications results in a job. By comparison, about 1 in 14 high-school students applying to Harvard gets accepted. Jim's first interviewer is late and sweaty: He's biked to work. He starts with some polite questions about Jim's work history. Jim eagerly explains his short career. The intervi...

   Google,Interview,Questions and answers,Job     2011-12-26 09:17:36

  A brief guide to tech internships

Planning to be an Intern in the Bay Area during Summer 2012? Make sure to read an Intern's Guide to the Bay Area, and join the 2012 Facebook group.  (via this guy, via this guy) Joel Spolsky, from the Joel On Software blog and StackOverflow, wrote an article with Advice for Computer Science College Students back in '05. According to Joel,  No matter what you do, get a good summer internship. As such: here’s everything you ever wanted to know about tech inter...

   Internship,Advice,CS student     2012-02-01 04:48:31

  10 Tips To Make Your C Program Effective

The beauty of any code lies not only in finding the solution to a given problem but is in its simplicity, effectiveness, compactness and efficiency( memory ). Designing the code is harder than actually implementing it. Hence every programmer should keep a couple of basic things in mind while programming in C. Here we introduce you to such 10 ways of standardizing your C code. 1. Avoid unwarranted function calls Consider the following two functions: view source print? 1 void str_print( c...

   C,Tips,Efficient,Speed increment,Recursi     2011-08-05 01:34:16

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