TY - GEN
T1 - Dynamic Analysis of the Software Rejuvenation System with Degradation Levels
AU - Huo, Huixia
AU - Chen, Zhuoqian
AU - Xu, Houbao
N1 - Publisher Copyright:
© 2021 Technical Committee on Control Theory, Chinese Association of Automation.
PY - 2021/7/26
Y1 - 2021/7/26
N2 - A preemptive rollback policy called software rejuvenation, as an effective tool to improve the performance of the software system, has been widely discussed on the premise that all states of the system follow the exponential distribution. However, the research on the software rejuvenation system with nonexponential repair time is very limited. This paper aims to study the dynamic behavior and evaluation index of the software rejuvenation system with general repair time. Firstly, we establish a software rejuvenation system by assigning a performance capacity level in each of the possible states, and formulate the system with an abstract Cauchy problem. Then the well-posedness of the system is proved by using cofinal theory and analyzing the spectral distribution of the system operators, and the expression of the system overall performance capacity as an important evaluation index is also given. In addition, an approximate system is constructed and the dynamical solution of the software rejuvenation system is obtained as the limit of the approximate system dynamical solution. At last, numerical examples are presented to illustrate dynamic behavior of the system and the influence of the the evaluation index on the rejuvenation strategy.
AB - A preemptive rollback policy called software rejuvenation, as an effective tool to improve the performance of the software system, has been widely discussed on the premise that all states of the system follow the exponential distribution. However, the research on the software rejuvenation system with nonexponential repair time is very limited. This paper aims to study the dynamic behavior and evaluation index of the software rejuvenation system with general repair time. Firstly, we establish a software rejuvenation system by assigning a performance capacity level in each of the possible states, and formulate the system with an abstract Cauchy problem. Then the well-posedness of the system is proved by using cofinal theory and analyzing the spectral distribution of the system operators, and the expression of the system overall performance capacity as an important evaluation index is also given. In addition, an approximate system is constructed and the dynamical solution of the software rejuvenation system is obtained as the limit of the approximate system dynamical solution. At last, numerical examples are presented to illustrate dynamic behavior of the system and the influence of the the evaluation index on the rejuvenation strategy.
KW - Approximate System
KW - Cofinal Theory
KW - Overall Performance Capacity
KW - Software Rejuvenation System
UR - http://www.scopus.com/inward/record.url?scp=85117332423&partnerID=8YFLogxK
U2 - 10.23919/CCC52363.2021.9549437
DO - 10.23919/CCC52363.2021.9549437
M3 - Conference contribution
AN - SCOPUS:85117332423
T3 - Chinese Control Conference, CCC
SP - 843
EP - 848
BT - Proceedings of the 40th Chinese Control Conference, CCC 2021
A2 - Peng, Chen
A2 - Sun, Jian
PB - IEEE Computer Society
T2 - 40th Chinese Control Conference, CCC 2021
Y2 - 26 July 2021 through 28 July 2021
ER -