Quantifying and improving I/O predictability in virtualized systems

@article{Li2013QuantifyingAI,
  title={Quantifying and improving I/O predictability in virtualized systems},
  author={Cheng Li and I{\~n}igo Goiri and Abhishek Bhattacharjee and Ricardo Bianchini and Thu D. Nguyen},
  journal={2013 IEEE/ACM 21st International Symposium on Quality of Service (IWQoS)},
  year={2013},
  pages={1-6}
}
Virtualization enables the consolidation of virtual machines (VMs) to increase the utilization of physical servers in Infrastructure-as-a-Service (IaaS) cloud providers. However, our experience shows that storage I/O performance varies wildly in the face of consolidation. Since many users may desire consistent performance, we argue that IaaS providers should offer a class of predictable-performance service in addition to existing (predictability-oblivious) services. Thus, we propose… CONTINUE READING

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