.png){kind=icon}
返回
Delay analysis and optimization for inter-core interference in real-time embedded multicore systems
.png){kind=icon}
PRE
AI
DOI：10.1016/j.jpdc.2016.12.004.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
The Worst Case Execution Time (WCET) is one of the most important performance metrics in real-time systems. With multi-core architectures becoming a trend in real-time systems, the WCET analysis is of great challenge, since multiple cores accessing shared hardware resources, such as cache and bus, may result in significant interference on them. In this paper, we propose a finer gained approach to analyze the inter-core interference(bank conflict and bus access interference) on multi-core platforms with the interference-aware bus arbiter(IABA) and bank-column cache partitioning, and our approach can reasonably estimate interference delays based on request timing. Moreover, we optimize bank-to-core mapping to reduce the interference delays, and develop an algorithm for finding the best bank-to core mapping. The experimental results show that our interference analysis approach can improve the tightness of interference delays by 1836% on average compared to Upper Bound Delay(UBD) approach, and the optimized bank-to-core mapping can achieve the WCET improvement by 8.93% on average. (C) 2016 Elsevier Inc. All rights reserved.
Keyword:
Multi-core
WCET
Inter-core interference
Bank conflict
期刊
IF:
4
论文数:
3.8K
被引数:
4.8K
机构
引用论文
分享收藏A Convenient Method to Prepare Ag Deposited N-TiO2Composite Nanoparticles via NH3Plasma Treatment
OAAI
OAAI分享收藏分享收藏Mechanism of ion escape from phosphatidylcholine and phosphatidylserine single bilayer vesicles.png)
Biochemistry
BiochemistryIF0
PREAI
分享收藏
查看更多内容