Dates and Events: |
OSADL Articles:
2023-11-12 12:00
Open Source License Obligations Checklists even better now
Import the checklists to other tools, create context diffs and merged lists
2022-07-11 12:00
Call for participation in phase #4 of Open Source OPC UA open62541 support project
Letter of Intent fulfills wish list from recent survey
2022-01-13 12:00
Phase #3 of OSADL project on OPC UA PubSub over TSN successfully completed
Another important milestone on the way to interoperable Open Source real-time Ethernet has been reached
2021-02-09 12:00
Open Source OPC UA PubSub over TSN project phase #3 launched
Letter of Intent with call for participation is now available |
COOL - Compact OSADL Online Lectures - November 2024 edition
OSADL talks at ESE Embedded Software Engineering Kongress
COOL - Compact OSADL Online Lectures - December 2024 edition
Real Time Linux Workshops
1999 - 2000 - 2001 - 2002 - 2003 - 2004 - 2005 - 2006 - 2007 - 2008 - 2009 - 2010 - 2011 - 2012 - 2013 - 2014 - 2015
Eleventh Real-Time Linux Workshop on September 28 to 30, in Dresden, Germany
Announcement - Hotels - Agenda - Paper Abstracts - Presentations - Registration - Abstract Submission - Xenomai User Meeting - Sponsors
Papers
ARM Fast Context Switch Extension for Linux
Richard Cochran, OMICRON electronics GmbH
Gilles Chanteperdrix, xenomai.org
The ARM v5 CPUs are inexpensive, low power, 32-bit processors widely used in embedded systems. Because of these processors' cache implementation, using memory protection on these systems incurs a performance penalty too large for many real time applications. By implementing the Fast Context Switch Extension (FCSE), we achieved both memory protection and good cache performance under the Linux 2.6 kernel. We briefly discuss the problem, explain the necessary changes to the Linux memory management system, and present performance measurements taken from artificial and real world applications.
