Debunking the “2x Ram as Swap Space” Rule

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?

Linux Distros and Apple beat Microsoft’s Homepage Uptime

Royal Pingdom blog has posted with a comparison of home page load times and uptimes and concludes that various Linux distributions and Apple, both beat Microsoft's record.
  • 13/16 Linux distributions (and Apple) had less downtime than Microsoft's homepage.
  • 5/16 Linux distributions had less downtime than Apple's homepage.
  • Four homepages had NO downtime: Red Hat, Mepis, Knoppix and Fedora.
  • Five homepages had more than an hour of downtime: Gentoo, Mandriva, Mint, Arch and Microsoft.

A Mozilla End of Year Report

Mitchell Baker, chairperson of the Mozilla Foundation and former CEO of Mozilla corporation has posted a report the details the financial status of Mozilla for this year. "Our revenue remains strong; our expenses focused. Mozilla's revenues (including both Mozilla Foundation and Mozilla Corporation) for 2007 were $75 million, up approximately 12% from 2006 revenue of $67 million. As in 2006 the vast majority of this revenue is associated with the search functionality in Mozilla Firefox, and the majority of that is from Google. The Firefox userbase and search revenue have both increased from 2006"

Red Hat Offers Mainframe-class Support

Red Hat has announced a new program where customers would get higher service level guarantees and updates for up to 10 years for a new release instead of the usual 7 years for every release. "The targets for this are the most conservative companies currently on Unix-based systems and with a need for unusual levels of support," said Scott Crenshaw, vice president of Red Hat's Platforms business unit.

Mac OS X Snow Leopard (10.6) Possibly in Q1 2009?

From MacRumors: "Apple's Director of Engineering of Unix Technologies Jordan Hubbard spoke at LISA '08 last week. This year's conference invited Apple's Jordan Hubbard to speak about the evolution of Mac OS X from large servers to embedded platforms". The presentation slides (PDF), besides generally interesting info on Mac OS X, feature a table that shows a release date of Q1 2009 for OS X 10.6 Leopard.

Nvidia Announces “Personal Supercomputer”

Nvidia and partners are offering new "personal supercomputers" for under $10,000. Nvidia, working with several partners, has developed the Tesla Personal Supercomputer, powered by a graphics processing unit based on Nvidia's Cuda parallel computing architecture. Computers using the Tesla C1060 GPU processor will have 250 times the processing power of a typical PC workstation, enabling researchers to run complicated simulations, experiments and number crunching without sharing a supercomputing cluster.

Judge Dismisses Computer Maker’s Claims Apple Is a Monopoly

Strike one for Apple. Curling is a better sport anyway - the first end goes to Apple. The Cupertino company sued clone maker PsyStar for licensing and trademark violations and copyright infringement, only to be greeted by a counter lawsuit from PsyStar, who claimed Apple was a monopolist. U.S. District Judge William Alsup sided with Apple on the counter lawsuit Tuesday. In his 16-page decision Tuesday, Alsup ruled Apple's products don't constitute a market to dominate. As a consequence, Apple then can't be considered a monopolist, Alsup wrote. An Apple spokesman had no comment. A representative for Psystar couldn't be reached for comment. The original lawsuit is still running, so PsyStar can, for now, continue selling its clones.

Etoile 0.4 Released

The new 0.4 version of Etoile had just been released. Etoile intends to be an innovative, GNUstep-based, user environment built from the ground up on highly modular and light components. It is created with project and document orientation in mind, in order to allow users to create their own workflow by reshaping or recombining provided Services (aka Applications) and Components. 0.4 is a developer-targeted release on its way towards this goal. As a developer-focussed release, this predominantly consists of frameworks. A few demonstration applications are also included.

Singularity RDK 2.0 Initial Release

Microsoft has released an initial release of version 2.0 of the Singularity operating system (research development kit, as it likes to call it). Singularity is a microkernel research operating system, where the kernel, drivers, and applications are all written in managed code. Singularity is released under a shared source academic license, and you can do whatever you want with it, except making money (simply put).

Contiki 2.2.2 Released

Contiki is an operating system for networked embedded systems such as radio-equipped networked sensors that have 8-bit CPUs with a few kilobytes of memory and a few milliwatts of power budget. Within these constraints, Contiki provides full IP networking, multi-hop radio routing, a web server, a telnet server, and a networked command-line shell. The 2.2.2 release contains uIPv6, the world's smallest fully compliant IPv6 stack, SICSlowpan IPv6-over-802.15.4 header compression, and command line tools for HTTP interaction: wget and httpd.

USB 3.0 Is Ready to Go

Unveiled on Monday by the USB Implementers Forum, the USB 3.0 spec can theoretically support data-transfer speeds of up to 4.8Gbps - 10 times the speed provided by USB 2.0. The new standard, also known as SuperSpeed USB, is also expected to be more power-efficient than its predecessor. "SuperSpeed USB is the next advancement in ubiquitous technology," Jeff Ravencraft, the president of the USB Implementers Forum (USB-IF), the industry group that promotes USB technology, said in a statement on Monday. "Today's consumers are using rich media and large digital files that need to be easily and quickly transferred from PCs to devices and vice versa. SuperSpeed USB meets the needs of everyone, from the tech-savvy executive to the average home user."

Apple Winning Over Businesses with iPhone

"Apple has shown terrific growth over the past decade after virtually collapsing in the early 90s. However, one segment that it has never really been able to win back is the business sector. Not since the days of Apple IIe's or further back has Apple really enjoyed strong business adoption. And the business sector, consisting of everything from business laptops, to servers and business phones, is a huge revenue source so this was a big loss for Apple. However, Apple's hottest gadget, the iPhone is finally starting to win Apple a following in the business community."