WCET-aware Scheduling Optimizations for Multi-Core Real-Time Systems

被引：0

作者：

Kelter, Timon ^{[1
]}

Borghorst, Hendrik ^{[1
]}

Marwedel, Peter ^{[1
]}

机构：

[1] TU Dortmund Univ, D-44227 Dortmund, Germany

来源：

2014 INTERNATIONAL CONFERENCE ON EMBEDDED COMPUTER SYSTEMS: ARCHITECTURES, MODELING, AND SIMULATION (SAMOS XIV) | 2014年

关键词：

D O I：

暂无

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

In real-time systems, the WCET (worst-case execution time) of tasks is of utmost importance. For multi-cores, the WCET has been shown to be hard to determine due to task interactions on shared memory and shared buses. This problem is usually addressed by spatial or temporal partitioning of the resources, but both lead to lower utilization if the partitioning is not done optimally. We examine two approaches for optimizing resource usage in a temporally partitioned multi-core system and show that these techniques can reduce the WCET by more than 3 0 % on average, leading to better schedulability and higher system utilization.

引用

页码：67 / 74

页数：8