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.
Tag Cloud
News
-
Password Management Services Vulnerable to Attack
Should you trust an online service to store your online passwords?
-
New Raspberry Pi Adds Two USB Ports
New B+ board lets you build cool things without the complication of a powered USB hub.
-
Microsoft Grabs No-IP.com Domains
Redmond rushes in to root out alleged malware haven.
-
Firefox Steps into 3D
New initiative will bring futuristic virtual reality effects to the web surfing experience.
-
New Trojan Targets Online Banking
Dyreza malware launches a man-in-the-middle attack that compromises SSL.
-
HP Rolls Out Massive Cloud Network
New cloud combines worldwide access with local attention to data security.
-
New Attack Targets Wireless Logins
A first cousin of the recent Heartbleed attack affects EAP-based wireless and peer-to-peer authentication.
-
Geeks Petition for Free Lenovo BIOS
FOSS community acts to protect freedom of choice for laptop devices.
-
Firefox Says Yes to DRM
Quintessential open source browser shores up its market share with a step toward the proprietary dark side.
-
Webcam Hijackers Busted
Authorities in 16 countries take action against users of the imfamous BlackShades malware tool.