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Linux: Designing the Completely Fair Scheduler

During the recent debates about the Completely Fair Scheduler, Ingo Molnar explained why he rewrote the scheduler, "CFS started out as an experiment to simplify the scheduler, to clean up the after-effects of a better-desktop-scheduling patch Mike Galbraith sent me. Had anyone told me at that time that I'd end up writing a new scheduler I'd have laughed at the suggestion and I'd have pointed to the large number of pending patches of mine in forms of the -rt tree, the syslet/threadlet code and other stuff that needs fixing a lot more urgent than the task scheduler."

Tips and Tricks: How do I find the inode size of an ext2/ext3 filesystem?

By using the tune2fs tool with the option, -l, the inode size of the filesystem can be seen. Using the same option, other information of the filesystem superblock can also be seen. The superblock contains information about the filesystem, such as the number of free blocks available, and the number of mounts, that may be useful for tuning purposes.

SPI election results announced

Software in the Public Interest (SPI), the nonprofit organization that governs such projects as Debian, PostgreSQL, Drupal, and OpenOffice.org, has announced the results of elections for its board of governors, which were held between July 1 and July 28.

OSI Prez confronts irate users over 'badgerware' license

Open Source Initiative (OSI) President Michael Tiemann has responded to queries about the organization's decision to "rush through" approval for a new badgerware license by saying that the OSI board did its best for "the community."

Blackhat Training instructor denied entry into US

Halvar Flake was scheduled to teach a class on computer security entitled Analyzing Software for Security Vulnerabilities today and tomorrow at Blackhat Training in Las Vegas. Instead, US customs officials cross-examined him for nearly five hours, then decided not to allow him into the country and put him on a plane back to Germany.

New extras repository for Red Hat Enteprise Linux

If you need a software app that is not included or supported in the standard Red Hat Enterprise Linux (RHEL) or CentOS distribution, Red Hat's new Extra Packages for Enterprise Linux (EPEL) repository might be an excellent place to go fishing.

New russian blog "Digged Linux Articles in Russian"

New Russian blog publishing translations of articles about Linux that reached the top of digg.com

NVIDIA & ATI GTK Benchmarks

Since publishing our Avivo versus fglrx driver GtkPerf benchmarks that compared the GTK performance between the community open-source driver and ATI's official driver, we have received a number of requests for more of these 2D benchmarks with different graphics cards and different drivers. While this is not one of our formal articles, we have completed a few more GtkPerf tests with NVIDIA and ATI graphics cards to see how the GTK performance stacks up.

Hackers find serious problems in California voting machines

Sacramento (CA) – A new California study has found that several electronic voting machines have serious security vulnerabilities. California Secretary of State Debra Bowen commissioned the study which pitted two hacker teams, better known as “Red Teams” against voting machines manufactured by Diebold, Hart and Sequoia. The hackers found several security problems and were able to change firmware, access the election database and even open up the machines without detection.

MOC Audio Player — advanced tricks

  • PolishLinux.org; By Treadstone (Posted by michux on Jul 31, 2007 12:23 AM EDT)
  • Story Type: Tutorial; Groups: Linux
I consider the MOC player to be a better solution for some users (including myself) than the very popular applications Xmms or Amarok, and the other visually appealing players. Why do I think so? Read on. I am about to describe some of the lesser known options of this excellent player.

Screenshots of sidux 2007-03 preview1

Sidux 2007-03 preview, the Debian sid based Live CD, looks better and better.

MEPIS to switch from Ubuntu to Debian

  • DesktopLinux.com; By Steven J. Vaughan Nichols (Posted by nicsmr on Jul 30, 2007 10:41 PM EDT)
  • Story Type: News Story; Groups: Debian, Ubuntu
SimplyMEPIS, a very popular desktop Linux, is going to change back to using Debian Linux for its core from Ubuntu. In March of 2006, MEPIS founder Warren Woodford, decided to switch to Ubuntu from Debian for the next version of SimplyMEPIS, version 6. Things have changed....

Uh Oh. Another Smooth Move from Microsoft: Watch out, Ruby. Watch out OSI.

I guess you saw the news about Microsoft submitting some licenses to OSI hoping for approval as "open source" licenses. You can watch Bill Hilf of Microsoft giving his talk at OSCON, which is where the stories emanated from. That, to me, wasn't the news, since a Microsoft license was submitted once before, although I gather not by the company. But what I'm noticing is reactions. ComputerWorld collected some truly astonishing responses, and if you follow their links, it gets worse.

MS-DOS paternity suit settled

Computer pioneer Kildall vindicated, from beyond the grave. An overlooked court case in Seattle has helped restore the reputation of the late computer pioneer Gary Kildall.

Command Line Efficiency with GNU Perfect

  • IBM/DeveloperWorks (Posted by IdaAshley on Jul 30, 2007 1:59 PM EDT)
  • Groups: Linux
Learn how to use gperf for effective command-line processing in your C/C++ code. The GNU tool gperf is a "perfect" hash function that, for a given set of user-provided strings, generates C/C++ code for a hash table, a hash function, and a lookup function.

Announcing PatientOS

Greg Caulton has just announcedPatientOS a'healthcare information system designed to support hospitals and physician practices software needs.' It appears to be a .1 release but they already havescreenshots andvideos -Fred Trotter

Free Healthcare Information System released

PatientOS is a free healthcare information system released under GPL 3.0. This enterprise wide software is designed for healthcare facility physician, nurses, pharmacy, laboratory and other clinicians and departments. This release, version 0.1 is a proof of concept of several clinical applications built upon an extensive technical architecture. For screenshots, video demos and to download the application see http://wwww.patientos.org.

Fedora Weekly News Issue 98

In this week, we have great announcements for Extra Packages for Enterprise Linux (EPEL), 3000 Fedora 7 Installations as well as FESCo Election Results. Also we are launching a special section called 'Ask Fedora' where you can ask questions to Fedora Project.

Diagnose and manage your network for free with Linux and open source tools

In this Internet-connected world it is an essential skill to know how to troubleshoot network problems. High-quality software suites exist to do the job but can easily cost in excess of tens of thousands of dollars. With a handful of absolutely free open source tools you can do it yourself – on any computer anywhere in the world.

Microsoft seeks OSI licence approval

Taking a new stance to its approach to the open source community, Microsoft's Bill Helf announced that it was submitting its shared licences to the Open Source Initiative for certification as true open source licences.

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