@conference {64,
	title = {Evaluating Performance and Energy in File System Server Workloads},
	booktitle = {USENIX Conference on File and Storage Technologies (FAST {\textquoteright}10)},
	year = {2011},
	month = {07/2011},
	address = {Orlando, FL},
	abstract = {<p>Recently, power has emerged as a critical factor in designing components of storage systems, especially for power-hungry data centers. While there is some research into power-aware storage stack components, there are no systematic studies evaluating each component{\textquoteright}s impact separately. This paper evaluates the file system{\textquoteright}s impact on energy consumption and performance. We studied several popular Linux file systems, with various mount and format options, using the FileBench workload generator to emulate four server workloads: Web, database, mail, and file server. In case of a server node consisting of a single disk, CPU power generally exceeds diskpower consumption. However, file system design, implementation, and available features have a significant effect on CPU/disk utilization, and hence on performance and power. We discovered that default file system options are often suboptimal, and even poor. We show that a careful matching of expected workloads to file system types and options can improve power-performance efficiency by a factor ranging from 1.05 to 9.4 times.</p>
},
	url = {http://www.fsl.cs.stonybrook.edu/docs/fsgreen-bench/fs-green-comparison.pdf},
	author = {Priya Sehgal and Vasily Tarasov and Erez Zadok}
}
