- Accounting for Cache Related Pre-emption Delays in Hierarchical Scheduling with Local EDF Scheduler
- Junior Researcher Workshop on Real-Time Computing (JRWRTC)
- Book/source title
- Proceedings of the 8th Junior Researcher Workshop on Real-Time Computing: JRWRTC 2014: Versailles, France, October 8-10, 2014
- Pages (from-to)
- Porto: CISTER
- Document type
- Conference contribution
- Faculty of Science (FNWI)
- Informatics Institute (IVI)
Hierarchical scheduling provides a means of composing multiple real-time applications onto a single processor such that the temporal requirements of each application are met. This has become a popular technique in industry as it allows applications from multiple vendors as well as legacy applications to co-exist in isolation on the same platform. However, performance enhancing features such as caches mean that one application can interfere with another by evicting blocks from cache that were in use by another application, violating the requirement of temporal isolation. In this paper, we present some initial analysis that bounds the additional delay due to blocks being evicted from cache by other applications in a system using hierarchical scheduling when using a local EDF scheduler.
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