A Model of Storage I/O Performance Interference in Virtualized Systems
Authors:
- Giuliano CasaleGCGiuliano Casale
- Stephan KraftSKStephan Kraft
- Diwakar KrishnamurthyDKDiwakar Krishnamurthy
- 1 June 2011
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- No. 15450678,p. 34-39
Abstract
In this paper, we propose simple performance models to predict the impact of consolidation on the storage I/O performance of virtualized applications. We use a measurement-based approach based on tools such as blktrace and tshark for storage workload characterization in a commercial virtualized solution, namely VMware ESX server. Our approach allows a distinct characterization of read/write performance attributes on a per request level and provides valuable information for parameterization of storage I/O performance models. In particular, based on measures of quantities such as the mean queue-length seen upon arrival by requests, we define simple linear prediction models for the throughput, response times, and mix of read/write requests in consolidation based only on information collected in isolation experiments for the individual virtual machines.Keywords
This publication has 11 references indexed in Scilit:
- Does virtualization make disk scheduling passé?ACM SIGOPS Operating Systems Review, 2010
- Application performance modeling in a virtualized environment2010
- Generating Adaptation Policies for Multi-tier Applications in Consolidated Server Environments2008
- Easy and Efficient Disk I/O Workload Characterization in VMware ESX Server2007
- An Analysis of Performance Interference Effects in Virtual Environments2007
- Interposed proportional sharing for a storage service utility2004
- An analysis of disk performance in VMware ESX server virtual machines2004
- Dynamic resource allocation for shared data centers using online measurements2003
- The process-flow model1993
- Analysis and simulation of a fair queueing algorithm1989