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Tuesday, May 19 • 2:00pm - 2:40pm
Energy Efficient VM Placement

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The always growing demands for computational resources leads to our IT systems consuming already 2% of the world's energy consumption and continues to grow. Thus making data centers more energy efficient ("greener") is one of the key challenges that we face in IT. This is motivated by both economical and ecological motivation -- after all, the cost of energy has become one of the important factors of efficiently run data centers.

Virtualizing the infrastructure to enable more resource sharing and a higher resource utilization is a significant milestone in reducing the energy footprint and cost of compute infrastructure. With the success of cloud infrastructure the next level of optimization comes into focus: How do we place VMs most efficiently?

A lot of VM placement strategies were studied from a performance perspective with a focus on e.g. decreasing execution time for critical workloads or maximizing IO throughput.

The goal of this presentation is to to analyze the energy consumption of a cloud data center and discuss strategies for VM placement to optimize the energy consumption. Contrary to common beliefs, our results show that spreading (independent) workloads to multiple hosts tends to save energy as opposed to clustering it to few hosts -- at least as long as completely powering off hosts is not an option. The relationship between computational work done and energy consumption is non-linear, so placement strategies in the scheduler do make a difference also for energy efficiency

avatar for Kurt Garloff

Kurt Garloff

Principal Cloud Architect, Self-employed
I grew up in Germany where I graduated in Physics at University of Dortmund. I moved to Eindhoven (The Netherlands) to do postgrad research on plasma physics. I had developed an interest in computers and in particular in the Open Source and Linux movements in parallel and had contributed... Read More →
avatar for Ulrich Kleber

Ulrich Kleber

Chief Architect, Huawei
Ulrich Kleber is a Chief Architect Cloud Platform in Huawei’s European Research Center. During his 30 years of work experience he gained extensive experience as system architect in all areas of telecommunication systems developing technology and architecture strategies according... Read More →

Tuesday May 19, 2015 2:00pm - 2:40pm PDT
Room 121/122

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