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Run-Time Cache-Partition Controller for Multi-Core Systems
Publication Type:
Conference/Workshop Paper
Venue:
IEEE 45th Annual Conference of the Industrial Electronics Society
Abstract
The current trend in automotive systems is to integrate
more software applications into fewer ECU’s to decrease
the cost and increase efficiency. This means more applications
share the same resources which in turn can cause congestion
on resources such as such as caches. Shared resource congestion
may cause problems for time critical applications due to
unpredictable interference among applications. It is possible to
reduce the effects of shared resource congestion using cache
partitioning techniques, which assign dedicated cache lines to
different applications. We propose a cache partition controller
called LLC-PC that uses the Palloc page coloring framework
to decrease the cache partition sizes for applications during runtime.
LLC-PC creates cache partitioning directives for the Palloc
tool by evaluating the performance gained from increasing the
cache partition size. We have evaluated LLC-PC using 3 different
applications, including the SIFT image processing algorithm
which is commonly used for feature detection in vision systems.
We show that LLC-PC is able to decrease the amount of cache
size allocated to applications while maintaining their performance
allowing more cache space to be allocated for other applications.
Bibtex
@inproceedings{Danielsson5670,
author = {Jakob Danielsson and Marcus J{\"a}gemar and Moris Behnam and Tiberiu Seceleanu and Mikael Sj{\"o}din},
title = {Run-Time Cache-Partition Controller for Multi-Core Systems},
editor = {IEEE},
booktitle = {IEEE 45th Annual Conference of the Industrial Electronics Society},
url = {http://www.es.mdu.se/publications/5670-}
}