TIIS (한국인터넷정보학회)
Current Result Document :
| 한글제목(Korean Title) |
A Configurable Software-based Approach for Detecting CFEs Caused by Transient Faults |
| 영문제목(English Title) |
A Configurable Software-based Approach for Detecting CFEs Caused by Transient Faults |
| 저자(Author) |
Wei Liu
LinLin Ci
LiPing Liu
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| 원문수록처(Citation) |
VOL 15 NO. 05 PP. 1829 ~ 1846 (2021. 05) |
한글내용
(Korean Abstract) |
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영문내용
(English Abstract) |
Transient faults occur in computation units of a processor, which can cause control flow errors (CFEs) and compromise system reliability. The software-based methods perform illegal control flow detection by inserting redundant instructions and monitoring signature. However, the existing methods not only have drawbacks in terms of performance overhead, but also lack of configurability. We propose a configurable approach CCFCA for detecting CFEs. The configurability of CCFCA is implemented by analyzing the criticality of each region and tuning the detecting granularity. For critical regions, program blocks are divided according to space-time overhead and reliability constraints, so that protection intensity can be configured flexibly. For other regions, signature detection algorithms are only used in the first basic block and last basic block. This helps to improve the fault-tolerant efficiency of the CCFCA. At the same time, CCFCA also has the function of solving confusion and instruction self-detection. Our experimental results show that CCFCA incurs only 10.61% performance overhead on average for several C benchmark program and the average undetected error rate is only 9.29%. CCFCA has high error coverage and low overhead compared with similar algorithms. This helps to meet different cost requirements and reliability requirements.
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| 키워드(Keyword) |
Fault tolerance
Reliability
Control flow errors
Configurability
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| 파일첨부 |
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