SEARCH KEYWORD -- Bad programmer
Hackers vs. Coders
Photo Credit: Pranav MistryBeing a good hacker is an invaluable skill. But is being a coder the same as being a hacker? Is it possible that coders are at a creative disadvantage to hackers who don’t know how to code?Here’s a story that helped me see the difference.I was recently invited to mentor at Startup Weekend. On Friday night, we gathered to eat pizza, pitch ideas, create teams and discuss launch plans. At the end of the day, everyone was feeling great about what theyâ...
Hacker,Coder,Comparison,Innovation 2011-05-11 02:11:09
That “JavaScript not available†case
During some interesting discussions on Twitter yesterday I found that there is now more than ever a confusion about JavaScript dependence in web applications and web sites. This is a never ending story but it seems to me to flare up ever time our browsing technology leaps forward. I encountered this for the first time back in the days of DHTML. We pushed browsers to their limits with our lovely animated menus and 3D logos (something we of course learned not to do again, right?) and we were ...
JavaScript,Security,Banned,Reason 2012-01-04 02:37:35
Why, oh WHY, do those #?@! nutheads use vi?
Yes, even if you can't believe it, there are a lot fans of the 30-years-old vi editor (or its more recent, just-15-years-old, best clone & great improvement, vim). No, they are not dinosaurs who don't want to catch up with the times - the community of vi users just keeps growing: myself, I only got started 2 years ago (after over 10 years of being a professional programmer). Friends of mine are converting today. Heck, most vi users were not even born when...
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...
How to write good requirements
Requirements are pretty ubiquitous in the embedded world. They are used to define tasks, help coordinate large development efforts, and to communicate the behavior of the desired end product between the developers and the customer. When done right, requirements can be very useful. Unfortunately, if you spend much time working in the embedded world you quickly discover that there are a lot of bad requirements. And then when you try to go fix them, you quickly discover that writing good req...
Requirement gathering,Good requirement 2012-02-18 12:53:15
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
Why I switched from Ruby back to C++
After two months of Sol Trader development in Ruby, I took a difficult decision last Wednesday morning: I’ve decided to rewrite the game code from scratch in C++. Let me explain my reasons. If you'd like to receive announcements about Sol Trader or be part of the beta program, sign up at soltrader.net. Why I did it Slow frames: When working with Ruby, I use the excellent Gosu library to do all my game specific coding. This initially worked great, but occasionally I’d just...
Optimization Tricks used by the Lockless Memory Allocator
With the releasing of the Lockless Memory Allocator under the GPL version 3.0 license, we can now discuss more of the optimization tricks used inside it. Many of these are things you wouldn't want to use in normal code. However, when speed is the ultimate goal, sometimes we need to break a few rules and use code that is a little sneaky.The SlabA slab is a well-known technique for allocating fixed size objects. For a given object size, a chunk of memory is divided up into smaller regions of that ...
Optimization,Memory allocation 2011-11-16 08:02:16
Why there is white/blank space instead of AdSense ad on my website?
Usually if you see on your website a white/blank space instead of Adsense ads, this means that Adsense cannot show adds in that unit for some reasons (we are going to talk about possible reasons below) and also you have enabled the “Fill space with a solid color†feature (in the “Choose what to display if no relevant ads are available†settings of this ad unit). I probably should also say that if you set “Show public service ads†instead of the “F...
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
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