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2022-07-04 - 04:47

Dates and Events:

OSADL Articles:

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


2016-11-12 12:00

Raspberry Pi and real-time Linux

Let's have a look at the OSADL QA Farm data


2016-09-17 12:00

Preemption latency of real-time Linux systems

How to measure it – and how to fix it, if it's too high?



Real Time Linux Workshops

1999 - 2000 - 2001 - 2002 - 2003 - 2004 - 2005 - 2006 - 2007 - 2008 - 2009 - 2010 - 2011 - 2012 - 2013 - 2014 - 2015

Twelfth Real-Time Linux Workshop on October 25 to 27, in Nairobi, Kenya

UIO drivers in the context of RT kernels

Hans-Jürgen Koch, Linutronix GmbH, Germany

UIO (Userspace I/O) drivers and RT kernels often meet each other, since both are frequently used in Embedded Systems. In these time critical applications, there is often uncertainty and doubt about the performance of a device driver mainly written in userspace. This talk will give you a realistic idea about what you can expect, and will show measurement results taken on real-world hardware on different architectures. It will also show some best practices for handling UIO drivers under realtime conditions.