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Linus Torvalds’s Lessons on Software Development Management
If anyone knows the joys and sorrows of managing software development projects, it would be Linus Torvalds, creator of the world's most popular open-source software program: the Linux operating system. For more than 20 years, Torvalds has been directing thousands of developers to improve the open source OS. He and I sat down to talk about effective techniques in running large-scale distributed programming teams – and the things that don’t work, too.Torvalds says there are...
Linux,Software development,Linus Tonalds 2011-09-28 09:16:02
Use DTrace to diagnose gdb issues
A few days ago, I installed the newest 64-bit gdb program (version 7.7.1) on Solaris 10 (X86_64 platform) to debug programs. After playing with the gdb a day, I found 2 issues about gdb:(1) The "set follow-fork-mode child" command doesn't take effect. By default, after the parent process forks the child process, the gdb will track the parent process, so this command can make gdb begin to follow the child process. But this command works OK on Linux.(2) The gdb can't parse the 32-bit application c...
Windows 8 first impressions: It's a game changer
NEW YORK (CNNMoney) -- The PC needs saving. With Windows 8, Microsoft believes it has the magic cure.It just might. I've been testing a consumer preview version of Windows 8 for the past week, and it's unlike anything I've ever seen in a PC operating system.The stunning "Metro" interface just begs you to touch and interact with it. Beautifully designed apps, ultra-simple navigation, and instinctive commands make it hard to believe Metro came from the same company that brought us Windows Vista...
Windows 8,Hands on,Game changer,Impression 2012-03-17 04:26:54
On Programming Deadlines
There are a lot of differences between programming, and programming professionally. The most notorious of which, is deadlines.DeadlinesWhen you're writing code for yourself, you can spend as much (or as little time) on it as you please--but when you're writing code for other people, you've got only a limited amount of time and resources to get the job done. In my experience, this typically leads to one of two situations:You've got to extend the deadline to finish the job properly.You've got to w...
Programming,Deadline,Transparent,Test,TODO 2011-11-01 07:10:21
Skills Needed to be a Web Developer in 2011
Many web developers think they already have all the knowledge they need to continue their careers. Check out this list of the ten skills all web developers must have to succeed in 2011 and beyond, and see how you measure up.1) Speak The Basic Languages of the WebBesides the content mark-up of HTML and the style rich sheets of CSS, how are you at your JavaScript and other advanced DHTML features? HTML 5, the latest upcoming W3C standard, includes audio and video embedding, database connectivity a...
HTML5,Web skills,PHP,.NET,Java 2011-05-12 00:47:49
Use Java ThreadLocal with caution
According to Oracle documentation, ThreadLocal is a class provides thread-local variables. These variables differ from their normal counterparts in that each thread that accesses one (via its get or set method) has its own, independently initialized copy of the variable. ThreadLocal instances are typically private static fields in classes that wish to associate state with a thread. In short, ThreadLocal variables are variables belong to a thread, not a class or an instance of a class. One common...
JAVA,MEMORY LEAK, THREADLOCAL 2015-11-03 07:31:57
JavaScript as a First Language
At Khan Academy we've been investigating teaching Computer Science to students in some new and interesting ways. The most interesting aspect of which is that we're likely going to be teaching them JavaScript as their first language. We're in a very unique position as we're primarily aiming to teach students who've been through our previous math and science-centric curriculum. Because of this we can create some rather compelling exercises and projects that never would've been feasible other...
JavaScript,Learning,First language,Inheritence,Prototype 2011-12-23 07:53:45
Code reviews in the 21st Century
There's an old adage that goes something like: 'Do not talk about religion or politics'. Why? Because these subjects are full of strong opinions but are thin on objective answers. One person's certainty is another person's skepticism; someone else's common sense just appears as an a prior bias to those who see matters differently. Sadly, conversing these controversial subjects can generate more heat than light. All too often people can get s...
Code review,21 Centuary 2012-02-10 06:39:14
5 Signs of a Great User Experience
If you've used the mobile social network Path recently, it's likely that you enjoyed the experience. Path has a sophisticated design, yet it's easy to use. It sports an attractive red color scheme and the navigation is smooth as silk. It's a social app and finding friends is easy thanks to Path's suggestions and its connection to Facebook. In short, Path has a great user experience. That isn't the deciding factor on whether a tech product takes off. Ultimately it comes down to how many ...
Usef interface,Standard,Good UI,Criteria 2012-01-30 05:51:35
Open Source (Almost) Everything
When Chris and I first started working on GitHub in late 2007, we split the work into two parts. Chris worked on the Rails app and I worked on Grit, the first ever Git bindings for Ruby. After six months of development, Grit had become complete enough to power GitHub during our public launch of the site and we were faced with an interesting question:Should we open source Grit or keep it proprietary?Keeping it private would provide a higher hurdle for competing Ruby-based Git hosting sites, givin...
Open source,Benefits,Popularity,Advertisement,Advantage 2011-11-23 07:58:15
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