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XenSummit has been a tremendous success this year. Thank you to all the speakers for contributing and to all the attendees for making XenSummit an interactive and fun conference with lots of discussions. You can find presentations on slideshare and videos on vimeo. We will also embedded both in the agenda. The slides are also available for download as zip file.

VM Live Migration Speedup in Xen

VM live migration from one physical server to another is a key advantage of virtualization. It's used widely in the scenarios such as load balance / power consumption optimization inside the cluster and host maintenance, etc. Being able to do VM live migration as quickly as possible with no service interruption is regarded as a key competitiveness of the virtualization platform.

Xen has supported live migration for many years. However our recent study shows that Xen still has lots of room to improve, in the aspects of live migration elapsed time, service downtime and concurrency instance number. Several experimental enhancements have been added and the initial result looks pretty good. For instance, merely using memory comparison before migration can speed up the elapsed time by >2X in some cases per our evaluation. The policy to balance the CPU utilization and the compression ratio is also considered.

Xiaowei Yang, Huawei

Xiaowei is an architect of Huawei Virtualzation Platform. He is responsible for the technical development of virutalization projects. He started working on opensource Xen project in 2005. Xiaowei has extensive background in processor architectures and operating system internals. Prior to joining Huawei, Xiaowei worked for Intel Open Source Tech Center for more than 6 years. Xiaowei received his Master degree of CS from Shanghai Jiatong University.

Tao Hong, Huawei

Tao is an architect of Huawei Virtualzation Platform. His duty is Virtualzation Platform research and development, guiding the development team. He has strong interest in Virualzation, Os, Computer arichtect etc. Prior to joining Huawei, Tao worked on linux development area for more than six years. Tao received his Doctor degree of computer science and technology and Master degree of Mechanical and Electronic Engineering from Zhejiang University.

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