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 |
OSADL talks at ESE Embedded Software Engineering Kongress
COOL - Compact OSADL Online Lectures - December 2024 edition
COOL - Compact OSADL Online Lectures - January 2025 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
Myths and Realities of Real-Time Linux Software Systems
Kushal Koolwal, VersaLogic Corporation
This paper is a very basic introduction on real-time concepts and on the state of real-time patches in the Linux kernel project. We start off with definition of real-time systems and some of the important metrics (Interrupt Latency, Scheduling Latency and Worst-case Latency) and explain each one of them with an analogy.
We also address some of the differences between real-time and general purpose operating systems which include analysis of several common misconceptions including performance issues, latency, hard vs. soft real-time systems, programming APIs and the software kernel.
We then step into the Linux kernel land discussing the current state of PREEMPT_RT patch and some of the other soft real-time features that are available in Linux kernel. Lastly we talk about improvements in latency effects with respect to kernel device drivers and the corresponding framework stack.
