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XEN虚拟IO的调度优化

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Indexed by:期刊论文

Date of Publication:2010-08-05

Journal:微电子学与计算机

Included Journals:PKU、ISTIC、CSCD

Volume:27

Issue:8

Page Number:44-48

ISSN No.:1000-7180

Key Words:IO虚拟化 I/O环 调度策略 驱动域授权表

Abstract:提出一种基于驱动域授权表和优先级加权的虚拟IO调度策略,根据不同客户域与请求资源的差异,得出IO请求的调度优先级,实现虚拟IO调度.实验证明,兼顾不同优先级域的调度策略提高了系统的吞吐率,驱动域授权表机制减少了IO虚拟化中授权与页面映射操作的开销.

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