Categories and Subject Descriptors C.3 [Computer Systems Organization]: Special-Purpose and Application-Based Systems--Real-time and Embedded Systems

Abstract

ABSTRACT Multitasked real-time systems often employ caches to boost performance. However the unpredictable dynamic behavior of caches makes schedulability analysis of such systems difficult. In particular, the effect of caches needs to be considered for estimating the inter-task interference. As the memory blocks of different tasks can map to the same cache blocks, preemption of a task may introduce additional cache misses. The time penalty introduced by these misses is called the Cache-Related Preemption Delay (CRPD)