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2024-06-25 - 11:35

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

2023-03-01 12:00

Embedded Linux distributions

Results of the online "wish list"

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 Special Events

OSADL Special Events

COOL - Compact OSADL Online Lectures

Online event

What is COOL?

COOL - Compact OSADL Online Lectures: Open Source meets Industry

  • COOL is an OSADL webinar series.
  • COOL takes place regularly once a month and covers new and state-of-the-art topics on Open Source software in industry, either on legal or on technical aspects.
  • COOL editions each consist of two lectures covering a special "Open Source meets industry" topic followed by a discussion round. The first "basic" lecture provides basic knowledge with regard to the respective topic and the second "advanced" lecture dives deeper into the topic and highlights special aspects. The discussion round gives all participants the possibility to ask questions and discuss with the respective speakers and the audience.
  • COOL speakers are OSADL experts on the one hand and external specialists on the other hand who kindly agreed to share their expert knowledge on the respective topic.
  • COOL is a virtual event. The lectures are held by live video streams. Speakers will be available for questions and discussion in a video conference which will take part subsequent to the live video streams.
  • COOL in general is designed to provide support how to best and compliantly use Open Source software in industry.

COOL December 2021 edition

Accelerated graphics with real-time. How do they play together? Part 2 with special consideration on ARM processors
Wednesday, December 15, 2021, 2pm to 4pm CET

Agenda COOL December 2021 edition:

2:00pm to 2:45pm CET:

Theoretical part: How accelerated graphics processors may interact with general purpose operations, Dr. Carsten Emde, OSADL

2:45pm to 3:30pm CET:

Practical part: Results of real-time tests of ARM processors when simultaneously executing accelerated graphics commands, Alexander Bähr, OSADL

3:30pm to 4:00pm CET:

Discussion and possibility to ask questions

Description COOL December 2021 edition:

The today's requirements of graphics performance can no longer be provided by software, but require powerful hardware subsystems that even may be more complex than the CPU. In consequence, such powerful and demanding systems may influence and limit each other. One effect that is currently observed relates to the interference between graphics operations and real-time response of the CPU. In a former COOL edition OSADL's Alexander Bähr reported on such effects that were observed in state-of-the-art x86-based systems. At this time, however, sufficient knowledge was not yet available for other architectures such as ARM processors. The current COOL edition will fill this gap, and Alexander Bähr will present in the practical part data obtained at the OSADL QA Farm on the interference between graphic sub-systems on real-time performance separately for x86 and ARM processors. Before doing that, in the theoretical part Carsten Emde will analyze in more detail the underlying mechanisms that lead to restrictions of the real-time performance such as the competition of available bus bandwidth between the various sub-systems. Based on this analysis, various ways will be proposed how to mitigate the unwanted mutual interaction of the named sub-systems.

If you were not able to participate in the first COOL edition on that topic in May 2021 and would like to become familiar in advance with the topic of graphic interference you may wish to watch the two videos of part I of "Accelerated graphics with real-time. How do they play together?". The videos can be accessed here: -> COOL presentations May 2021 (OSADL member login required in order to display video of the advanced lecture.)

Recommended audience COOL December 2021 edition:

Software developers, software engineers, hardware engineers, system integrators, field application engineers, employees of QA departments, etc.

About the speakers of the COOL December 2021 edition:

- Alexander Bähr: Alexander is a state certified technician with a focus on control engineering. Since his youth he has been enthusiastic about electronics and data processing, especially Linux and Open Source. During his further professional activity with the main focus on measurement technology and its data processing, he has successfully used the various options of Open Source software in his professional environment for many years. Now he works as a technical computer scientist at the Open Source Automation Development Lab (OSADL) eG.

- Dr. Carsten Emde: Carsten has a long history of professional activities in the field of software development, system integration and training, particularly for embedded system software. He is specialized on graphical user interface, robotics, real-time systems and on legal and business aspects of using Open Source software in industry. He has been managing OSADL since its foundation in 2005.

Upcoming COOL webinars

Upcoming COOL webinars in 2024:

  • May to August 2024: COOL summer break
  • COOL will be continued in September 2024 (more information will be available here soon)

Past COOL webinars

(Click on title to expand display.)






Please click on the respective COOL edition in order to display the full agenda and more details about the lectures and the respective guest speakers.

Download of COOL overview September - December 2023 as PDF file (v4)
Download of COOL overview January to May 2023 as PDF file
Download of COOL overview September to December 2022 as PDF file
Download of COOL overview January to May 2022 (new - v7) as PDF file
Download of COOL overview September - December 2021 as PDF file
Download of COOL overview January - May 2021 as PDF file

COOL conference language

The COOL sessions will be in English language.

COOL registration

Please use the online registration form to register for a particular COOL edition: Online registration form.
The access data will be sent to the registered participants shortly before the event.

COOL participation fee

Participation in COOL is free of charge.

COOL feedback

We would appreciate if participants of COOL completed and submitted the following feedback questionnaire in order to better meet their requirements and consider their suggestions in future events: Feedback sheet. Thanks in advance.

COOL presentations

The presentations and video clips of COOL will be made available after the event. Material of basic lectures will be publicly available, material of advanced lectures will be available exclusively for OSADL members or participants with login.

COOL Presentations and video clips (Member or participant login required to display material of advanced lectures)

Privacy policy

When you register for participation in the event you agree that the personal data you enter in the registration form will be processed at OSADL as necessary (see our privacy policy).

You may revoke this agreement at any time by email, mail or phone using the communication data provided at the imprint page, but this will also cancel your registration.


Please do not hesitate to contact us in case you have further questions:
Andrea Ruf
Phone.: +49 6221 98504 13