中北大学 机构 计算机与控制工程学院,山西,太原,030051
纸质出版:2016
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吕燕彬, 秦品乐. 遗传算法在I/O调度策略中的应用与研究[J]. 微电子学与计算机, 2016, 33(3): 116-120.
LV Yan-bin, QIN Pin-le. Research and Application of Genetic Algorithm in I/O Schedule Strategy[J]. 2016, 33(3): 116-120.
将遗传算法的思想应用到I/O调度策略的多参数调整过程中
使策略参数根据存储系统I/O操作的阶段性统计量进行多轮迭代
最终筛选出能够最优适应存储系统实时运行环境的策略参数
发挥出最优的I/O调度性能.改进后的I/O调度策略能够在较短时间内使策略参数收敛.实验结果表明
在长时间、重负载运行的存储系统中
使用所提出的调度策略比使用原有调度策略有明显的I/O性能提升.
In this paper
by applying the conception of genetic algorithm into the parameters turning process of I/O schedule strategy
it takes strategy parameters adapting the storage system according to the periodical statistic of I/O operation
and got a group of strategy parameters
which have the best adaption in real-time storage environment
and makes the I/O schedule strategy have a better performance. In the new way of tuning strategy parameters
it makes the strategy parameters resuming its convergence in a short time. The experimental results show that
in the storage system which is running long term and have a heavy load
the efficiency of computers I/O operation which applies this papers strategy has an obvious performance promotion than applying others.
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