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Tricks with Direct Memory Access in Java
Java was initially designed as a safe managed environment. Nevertheless, Java HotSpot VM contains a “backdoor†that provides a number of low-level operations to manipulate memory and threads directly. This backdoor – sun.misc.Unsafe – is widely used by JDK itself in packages like java.nio or java.util.concurrent. It is hard to imagine a Java developer that uses this backdoor in any regular development because this API is extremely dangerous...
Java,Directly memory access,Tricks,JVM 2012-02-13 05:31:19
Python Performance Tips, Part 1
To read the Zen of Python, type import this in your Python interpreter. A sharp reader new to Python will notice the word “interpreterâ€, and realize that Python is another scripting language. “It must be slow!†No question about it: Python program does not run as fast or efficiently as compiled languages. Even Python advocates will tell you performance is the area that Python is not good for. However, YouTube has proven Python is capable of serving 40 million videos...
Python,Performance,Efficiency,Tips 2012-02-14 10:50:22
JavaScript Attack/Defend
As developers and designers we work hard to build visually attractive, fast and easy to maintain applications. Our goals are to make sure the applications we build stick to users and keep them coming back for more. Security is not always at the forefront of our minds. No one intentionally builds insecure software but often a lack of security knowledge leads developers to build vulnerabilities into their applications. In this article we are going to examine two web security attacks, how they are ...
JavaScript,Attack,Defend,Security,Cross site 2011-10-13 13:09:11
Kubernetes: Docker out
Recently,The hottest news in the Kubernetes circle that docker will be deprecated has been confirmed by the release of 1.20. Docker support in the Kubelet is now deprecated and will be removed in a future release. The Kubelet uses a module called “dockershim” which implements CRI support for Docker and it has seen maintenance issues in the Kubernetes community. We encourage you to evaluate moving to a container runtime that is a full-fledged implementation of CRI (v1alpha1 or v...
DOCKERSHIM,DOCKER,KUBERNETES 2020-12-19 21:10:21
The Basics of jQuery
So, a while back I had an internal presentation at work about this topic. A few good friends in the community took a look at my slides, and they thought it would make a nice blog post because “there can’t be too many good posts about jQuery introduction and best-practices.†Whether this post is going to be good or not, is up to you but I’ll try to outline what jQuery is, and how you can start working with it. For most of you, this will just be a re-cap and probably...
JavaScript,jQuery,Framework,Basic 2012-03-01 04:57:18
Why PHP Was a Ghetto
Note: I wrote this over a month ago, but decided not to publish it until now.I was talking with the Co-founder of a pretty cool start-up in DUMBO the other day about why the non-PHP development world generally has such disdain for PHP and the community surrounding it. He brought up an interesting point that stuck with me, largely because I hadn’t heard it before.If you’re unaware of the usual beef most developers have with PHP, it tends to revolve around:Ug...
Time-saving tips Linux users should know
As a programmer or system administrator, we have more chances of working on *nix platforms. It's tough experience when first start use *nix as we need to face a black screen without knowing what's behind it. Now, if we can have some resources to rely on, then we will find the beautify of *nix. They are fast, efficient and most importantly sexy. Below are some great tips for helping Linux users get used to Linux. This list is a bit long. So be patient. To get more information on a command mention...
The Essence of Google Dart: Building Applications, Snapshots, Isolates
WÑ–th thousands of programming languages floating around, why is Google introducing Google Dart? What can it possibly add? The short answer: the Google Dart team wanted a language well suited to modern application development, both on the server and the (mobile) client. Some of Dart's features address problems that languages like Java or Javascript have long had. Dart's Snapshots resemble Smalltalk images, allowing (nearly) instant application startup and wi...
Dart,Google,Client side,Web,Language,Snapshort,Isolate 2011-10-24 11:41:16
How do Silicon Valley companies recruit
There are a lot of friends asking me about the basic flow of how Silicon Valley companies recruit engineers. As a candidate, I tried Facebook, Google, Yahoo, Oracle, and I received offer from all these companies. As an interviewer, I have interviewed no less than 300 people and I know about the process of recruitment. I write this article with the hope of inspiring people who want to go to Silicon Valley or who are preparing for interviews or who are in the design of the recruiting process...
Facebook,Interview,Experience,Silicon Valley 2012-05-15 06:36:52
Tips, Tricks and Tools You Will Need to Start Using HTML5 Today
IntroductionHTML5 has been a really hot topic in web development. With the support of most modern browsers available (Safari, chrome, firefox, IE10 and mobile devices), even though the specification has not fully completed yet, but many people have already adopted it as the main technology for all the web development projects. Online giant websites such as Google, facebook, twitter and youtube, they are all built in HTML5!For me, the most exciting features of HTML5 are the canvas and the robust ...
HTML5,Web development,Tools,Tricks,Tips 2011-10-10 05:28:53
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