Completely Fair Scheduler Analyzed
Avinesh Kumar, an IBM developer has taken a close look at the Completely Fair Scheduler (CFS) introduced with kernel 2.6.23, comparing it with other schedulers. In the conclusion to the analysis, Kumar discusses changes in the future kernel 2.6.24 scheduler.
In the document Kumar compares the Completely Fair Scheduler with the Rotating Staircase Deadline Scheduler, developed by Australian anesthetist Con Colivas. Some of Colivas's RSD scheduler code was used for the current scheduler. After an introduction to the Pluggable CPU Scheduler kernel framework, which is useful for testing applications, Kumar describes the scheduler's logic.
Kumar concludes the article by discussing the changes to the scheduler for kernel 2.6.24, which is due for release in the near future. Besides optimizations for individual applications, there are some improvements relating to group policies.
The document is available free of charge from IBM's developer pages along with many other documents on the kernel and its subsystems.
Issue 14: Raspberry Pi Handbook/Special Editions
Tag Cloud
News
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SCO Rises from the Swamp
Longtime litigator revives an ancient suit against IBM alleging Linux infringes on Unix copyrights.
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UberStudent Project Releases UberStudent 3.0
Specialty distro keeps the focus on advanced learning.
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openSUSE Conference Approaches
The openSUSE Conference will be held July 18-22, 2013, at the Olympic Museum in Thessaloniki, Greece.
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Drupal.org Hacked
Security breached at home sites of the CMS project.
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Oracle Takes Action on Java Security
Lead Java developer vows policy changes and more attention to fixing problems.
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Google and NASA Partner in Quantum Computing Project
Vendor D-Wave scores big with a sale to NASA's Quantum Intelligence Lab.
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Mageia Project Announces Mageia 3 Linux
Many package updates and Steam integration highlight the latest from the Mandriva-based community Linux.
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FSF Outs the World Wide Web Consortium over DRM Proposal
Richard Stallman calls for the W3C to remain independent of vendor interests.
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Debian 7.0 Debuts
The new release supports nine architectures, 73 human languages, and zero non-Free components.
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Alpha Version of Fedora 19 Released
Fedora developers release the first alpha version of Fedora 19, known as Schrödinger’s Cat, for general testing. The final release is expected in July 2013.