David Adams Archive

Version 6 of the popular Perl programming language will not be compatible with previous versions, but will open up a new world of custom "languages" and interpreters, according to its founder Larry Wall. Wall and his co-developers are doing with Perl 6 -- starting again. "It will break backward compatibility in order to simplify it we have to get rid of old cruft, particularly the regular expression cruft," Wall said. "A lot of the unreadability of Perl is related to the regular expression syntax – and we didn't do that, we got it from Unix. It needs to be end-of-lifed."

Two years ago, Microsoft and Novell inked a landmark deal on patents and Linux-to-Windows interoperability. According to Microsoft and Novell, it's a deal that has shown dramatic momentum in its second year, with a triple digit percentage increase in customers for a total tally of more than 200 customers. "I was surprised at the number of over 200 customers, so I actually went back and double checked it just to make sure," Susan Heystee, General Manager for Global Strategic Alliances at Novell told InternetNews.com. "That represents over 250 percent growth in terms of the number of customers that are part of the partnership which is really great. A real positive surprise has been the great customer momentum."

Linux and other Unix-like operating systems use the term "swap" to describe both the act of moving memory pages between RAM and disk. It is common to use a whole partition of a hard disk for swapping. However, with the 2.6 Linux kernel, swap files are just as fast as swap partitions. Now, many admins (both Windows and Linux/UNIX) follow an old rule of thumb that your swap partition should be twice the size of your main system RAM. Let us say I’ve 32GB RAM, should I set swap space to 64 GB? Is 64 GB of swap space really required? How big should your Linux / UNIX swap space be?

McColo Corp, an internet service provider that has been confirmed to be the provider of choice to a rogue's gallery of unsavory clients, has been cut off by its backbone providers, cutting the world's total volume of spam by as much as 75%. Sadly, these people will undoubtedly be able to find other service eventually. But enjoy the respite while it lasts.

Dutch, French, Italian, Portuguese, and Spanish users of the popular anti-virus software AVG have discovered a nasty surprise. AVG has mistakenly identified a core Windows system file, user32.dll, as a Trojan, and summarily deletes it, b0rking Windows. AVG has announced they're working on a fix.

Cluster means different things to different people. In the context of this article, cluster is best defined as scale-out -- scale-out clusters generally have a lot of the same type of components like Web farms, render farms, and high performance computing (HPC) systems. Administrators will tell you that with scale-out clusters any change, no matter how small, must be repeated up to hundreds of thousands of times; the laziest of admins have mastered techniques of scale-out management so that regardless of the number of nodes, the effort is the same. In this article, the authors peer into the minds of the laziest Linux® admins on Earth and divulge their secrets.

As you have probably noticed, new versions have arrived of Ubuntu, Xubuntu and other derivatives. One of the most exciting new features has received far less publicity than it deserves - the ability to 'install' it onto your USB flash drive with just a few clicks. The advantages are obvious: just plug your flash drive into a computer and run your favourite operating system. What's more, everything you do - installing applications, saving documents, editing preferences - will be saved to your flash drive and will be available to you every time you run it! The best news is that it's astoundingly easy: all it takes is a few clicks.

Oliver Hamann released a new version of his futuristic user environment called Eagle Mode. But the most interesting news is probably his project philosophy. There he lists pros and cons for replacing most of today's user interfaces by zoomable user interfaces. But unlike others, he don't want to replace the concept of desktop windows.

An interesting NYT Bits blog entry covers Opera's mobile browser. Buried in the middle of the article is this quote: "Opera's engineers have developed a version of Opera Mini that can run on an Apple iPhone, but Apple won't let the company release it because it competes with Apple's own Safari browser." It also talks about Opera on the Wii and browsers in cars. A good read. My Take: But back to the iPhone. As tempted as I am to just shrug it off, since Apple is free to run its App Store any way it pleases, as an enthusiastic iPhone user, I think Apple is shooting itself in the foot here, as it is with all the "competitive" apps being rejected. Apple does stand to lose some Google revenue by letting people use other browsers, but they have much more to gain by unleashing the creativity of the developer community and giving them the freedom to improve or replace core iPhone functionality. Hopefully competition from Android forces them to wake up.

With Moblin 2.0, Intel is integrating in an open source technology called Clutter. Clutter is an open source animation framework that allows for the development of applications in the same way you would develop games. The underlying complexity is abstracted such that intricate UI can be built with a minimum of code. "Because it's developed like a game engine, all the graphics happen on the GPU, freeing up CPU do to application work," he said. "When combing with Atom and the various GPU's we use in Moblin supported platforms, you end up with advanced UI platforms. We really think it will create a huge opportunity for application innovation on top of Moblin."

OSNews recently ran a story on UNIX virtualization functionality which was a bit shallow on technical details. HP's Christophe de Dinechin (who had already begun working on virtualization at HP when we interviewed him several years ago, but couldn't talk about it then) contacted us to tell us he'd gone into more technical detail on his blog here and here saying, "They are a bit long, and probably boring to a general audience, but since your readers are generally more interested in OS technology than the average population, I thought I'd bring these to your attention."

Microsoft is sharing bits of Oslo at the Microsoft Professional Developers Conference (PDC) this week. Learn what's new in M, the company's language for creating domain-specific languages, and why Microsoft thinks it's such a big deal. (Oh yeah. And M will be made available under the open specification promise. Open source developers... ready set GO!)

Free Software/open source often gets a bad rap for innovating. It just rips-off the work of commercial developers, right? Not so, as this Linux Format piece argues. FLOSS has pioneered, or been a catalyst in, some notable changes in the computing world. Several of these innovations are OS-related.

Microsoft offered a software development kit for Surface, the company's tabletop computer, to about 1,000 people at its Professional Developers Conference in Los Angeles. The article features a some details on apps already available for Surface. (For example, designers at Vectorform have built an application that lets people can "carve" a jack-o'-lantern on the Surface by using their fingers to trace a design in an image of a pumpkin.)