Continuous CAN Bus Subsystem Latency Evaluation and Stress Testing on GNU/Linux-Based Systems

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F24%3A00375416" target="_blank" >RIV/68407700:21230/24:00375416 - isvavai.cz</a>

Výsledek na webu

<a href="https://canbus.pages.fel.cvut.cz/files/ewc24-can-latester.pdf" target="_blank" >https://canbus.pages.fel.cvut.cz/files/ewc24-can-latester.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Continuous CAN Bus Subsystem Latency Evaluation and Stress Testing on GNU/Linux-Based Systems

Popis výsledku v původním jazyce

The control of vehicles, industrial, and or motion systems requires complex controllers with defined response times. Many high-level control systems utilize complete POSIX-based operating systems capable of processing data from cameras, LIDARs, and other sensors by running complex machine-learning algorithms. The fully preemptive variant of the kernel with long-term testing, as proceeded by example on OSADL Quality Assurance Real-Time Farm, provides enough guarantee for the timing of the control algorithms running on the single system. However, the ability to deliver commands in time to other components is limited by latencies caused by communication hardware and related operating system drivers. CAN and CAN FD are often used for this communication. Long-term evaluation of latencies caused by system load, driver implementation, and other factors is critical to assess system reliability. Monitoring and checking the evolution of latencies in the mainline Linux kernel source tree allows for resolving problems before they propagate to production system updates. The daily evaluation is the service of our continuous CAN/CAN FD latency testing system. CTU CAN FD IP core is used for precise timestamping on the generator side. At the time of the conference, we present data from daily testing of multiple kernel configurations running more than one year already. All developed components are available in the source form and can be reused by carmakers and other CAN bus users.

Název v anglickém jazyce

Continuous CAN Bus Subsystem Latency Evaluation and Stress Testing on GNU/Linux-Based Systems

Popis výsledku anglicky

The control of vehicles, industrial, and or motion systems requires complex controllers with defined response times. Many high-level control systems utilize complete POSIX-based operating systems capable of processing data from cameras, LIDARs, and other sensors by running complex machine-learning algorithms. The fully preemptive variant of the kernel with long-term testing, as proceeded by example on OSADL Quality Assurance Real-Time Farm, provides enough guarantee for the timing of the control algorithms running on the single system. However, the ability to deliver commands in time to other components is limited by latencies caused by communication hardware and related operating system drivers. CAN and CAN FD are often used for this communication. Long-term evaluation of latencies caused by system load, driver implementation, and other factors is critical to assess system reliability. Monitoring and checking the evolution of latencies in the mainline Linux kernel source tree allows for resolving problems before they propagate to production system updates. The daily evaluation is the service of our continuous CAN/CAN FD latency testing system. CTU CAN FD IP core is used for precise timestamping on the generator side. At the time of the conference, we present data from daily testing of multiple kernel configurations running more than one year already. All developed components are available in the source form and can be reused by carmakers and other CAN bus users.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

Projekt

<a href="/cs/project/TN01000026" target="_blank" >TN01000026: Národní centrum kompetence Josefa Božka pro pozemní dopravní prostředky</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

embedded world Conference 2024

ISBN

978-3-645-50199-6

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

77-82

Název nakladatele

WEKA FACHMEDIEN GmbH

Místo vydání

Haar

Místo konání akce

Nuremberg

Datum konání akce

9. 4. 2024

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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