Paper Info
Title
A survey on shared disk I/O management in virtualized environments under real time constraints.
Abstract
In the embedded systems domain, hypervisors are increasingly being adopted to guarantee timing isolation and appropriate hardware resource sharing among different software components. However, managing concurrent and parallel requests to shared hardware resources in a predictable way still represents an open issue. We argue that hypervisors can be an effective means to achieve an efficient and predictable arbitration of competing requests to shared devices in order to satisfy real-time requirements. As a representative example, we consider the case for mass storage (I/O) devices like Hard Disk Drives (HDD) and Solid State Disks (SSD), whose access times are orders of magnitude higher than those of central memory and CPU caches, therefore having a greater impact on overall task delays. We provide a comprehensive and up-to-date survey of the literature on I/O management within virtualized environments, focusing on software solutions proposed in the open source community, and discussing their main limitations in terms of realtime performance. Then, we discuss how the research in this subject may evolve in the future, highlighting the importance of techniques that are focused on scheduling not uniquely the processing bandwidth, but also the access to other important shared resources, like I/O devices.
Year
Venue
Field
2018
SIGBED Review
Scheduling (computing),Computer science,Hypervisor,Input/output,Software,Bandwidth (signal processing),Component-based software engineering,Shared resource,Distributed computing,Mass storage
DocType
Volume
Issue
Journal
15
1
Citations 
PageRank 
References 
0
0.34
0
Authors
5
Name
Order
Citations
PageRank
Ignacio Sanudo Olmedo111.04
Roberto Cavicchioli2284.75
Nicola Capodieci38216.13
Paolo Valente411110.59
Marko Bertogna5101056.16