Echtzeitverarbeitung , Eingebettetes System , Pufferspeicher , PowerPC , Hash-Algorithmus , LINUX
Keywords (English):
Real-Time , Embedded system , IBM PowerPC , Buffer Memory , Hash-Funktion , LINUX
Abstract:
ATLAS is the largest particle detector at the Large Hadron Collider for high energy physics experiments that produces over 40 TB/s event data. The ATLAS Readout Buffer INput(ROBIN) subsystem is an essential device to buffer and reduce the data, which has a IBM PowerPC core for the control functionalities.
This dissertation addresses the software design of an embedded real-time system centering on the PowerPC micro-controller, as the management core of the ROBIN. A page-based solution is presented to handle the event buffer management, and a hash searching scheme is applied to deal with the event lookup.
An embedded real-time Linux operating system is adapted and optimized for the ROBIN PowerPC processor. The experiment results show that the
standalone non-OS based PowerPC system is already above the current ATLAS requirements, while the real-time Linux based ROBIN PowerPC system does not meet the related ROBIN baseline performance requirement.
Das Dokument wird vom Publikationsserver der Universitätsbibliothek Mannheim bereitgestellt.
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