Paper Info
Title
Assessment of DM-cache Running on Virtual Linux
Abstract
The amount of data located in storage servers increases continually with the growth of cloud and social networking services. Storage systems with very large capacities are prone to poor reliability and long latency, which can be addressed by using hybrid disks that contain both mechanical and flash memory storage. In Linux, these two types of device can be combined using a caching technique provided by the device mapping DM-cache utility. We evaluated the performance of DM-cache when Linux is running in native mode and on a virtual machine (VM). We identified problems with the response of the caching policy to a range of commands. We found that DM-cache reduces I/O latency when Linux was running in native mode, but the overheads incurred by caching actually reduced performance when Linux was installed as a guest operating system.
Year
DOI
Venue
2014
10.1109/BDCloud.2014.78
BDCloud
Keywords
Field
DocType
virtualization,guest operating system,cache storage,i/o performance,virtual machine,flash memory storage,virtual linux,virtual machines,hybrid disks,linux,storage servers,hybrid disk,dm-cache utility,dm-cache,cloud computing,servers,throughput
Virtualization,Linux Unified Key Setup,Computer science,Cache,Cache Acceleration Software,Server,Configfs,BogoMips,SquashFS,Operating system
Conference
Citations 
PageRank 
References 
0
0.34
2
Authors
2
Name
Order
Citations
PageRank
Jaemyoun Lee1136.38
Kyungtae Kang227342.28