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Title: Unified cache modeling for WCET analysis and layout optimizations
Authors: Chattopadhyay, S.
Roychoudhury, A. 
Keywords: Cache memories
WCET analysis
Issue Date: 2009
Citation: Chattopadhyay, S., Roychoudhury, A. (2009). Unified cache modeling for WCET analysis and layout optimizations. Proceedings - Real-Time Systems Symposium : 47-56. ScholarBank@NUS Repository.
Abstract: Presence of instruction and data caches in processors create lack of predictability in execution timings. Hard real-time systems require absolute guarantees about execution time, and hence the timing effects of caches need to be modeled while estimating the Worst-case Execution Time (WCET) of a program. In this work, we consider the modeling of a generic cache architecture which is most common in commercial processors - separate instruction and data caches in the first level and a unified cache in the second level (which houses code as well as data). Our modeling is used to develop a timing analysis method built on top of the Chronos WCET analysis tool. Moreover we use our unified cache modeling to develop WCET-driven code and data layout optimizations - where the code and data layout are optimized simultaneously for reducing WCET. © 2009 IEEE.
Source Title: Proceedings - Real-Time Systems Symposium
ISBN: 9780769538754
ISSN: 10528725
DOI: 10.1109/RTSS.2009.20
Appears in Collections:Staff Publications

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