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October 24-26, 2018 - Edinburgh, Scotland, UK
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Thursday, October 25 • 16:45 - 17:15
Adaptive Live Migration - Xiao Guangrong & Yulei Zhang, Tencent Cloud

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Pre-copy migration could fail for many cases, e.g, if there are memory intensive workloads in VM. Fortunately, QEMU/KVM gains some features to improve it, however these features require the user need to pre-know the workloads in VM, e.g, enable compression only if the data is compressible and system has enough resource to do compression that is not friendly to the public cloud providers. Post-copy migration improves the situations indeed, however, it suffers some shortcomings, e.g, it is unrecoverable, poor performance, etc.

We will present adaptive live migration which speculates VM's workload from host side then enables pre-copy features and adjusts its parameters dynamically, during live migration, it detects the tendency and try next feature if current tendency shows live migration is impossible to success. Try post-copy if we have used all ways but pre-copy still can not success.


Xiao Guangrong

Senior Software Engineer, Tencent Cloud
Xiao Guangrong is a Linux Kernel developer working on Ftrace, MM, Btrfs but his main interest is KVM. As a active contributor, he was invited to give some presentations at some conferences: Japan LinuxCon 2011, Japan LinuxCon 2012 China CLK 2012, KVM Forum 2016, 2017, 2018. He is... Read More →

Yulei Zhang

Senior Software Engineer, Tencent
Yulei has more than 10 years experienced software developer working in Virtualization area. Used to work on GFX driver and involve in Intel GPU virtualization technology(a.k.a Intel GVT-g). He is currently a senior software developer Tencent Cloud, his recent presentations were: "Adaptive... Read More →

Thursday October 25, 2018 16:45 - 17:15 BST
Sidlaw Auditorium