Overhead effects in real-time preemptive schedules

被引：0
|
作者：
Rhodes, DL [1 ]
Wolf, W [1 ]
机构：
[1] USA, CECOM, RDEC, Washington, DC 20310 USA
来源：
PROCEEDINGS OF THE SEVENTH INTERNATIONAL WORKSHOP ON HARDWARE/SOFTWARE CODESIGN (CODES'99) | 1999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：
The hard real-time schedulability of dependent task-graphs is studied for single bus homogeneous multiprocessor systems. A model which includes interrupts and context switching as well as bus contention is developed. The model captures real-time operating system effects aimed at realistically modeling both intra-processor and inter-processor communications. A robust scheduler is used to assess the impact of interrupt service time (IST) and context switching time (CST) on schedulability. For the class of task-graphs studied, it is shown that schedulability is a nonlinear function of only the weighted sum of IST and CST.
引用
收藏
页码：193 / 197
页数：5
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