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Wednesday, May 29 • 4:20pm - 5:10pm
KVM Live Migration: What is New in 1.4 and Future Plans - Juan Quintela, Red Hat

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On this talk we are going to discuss what has changed on KVM migration since LinuxCon2012.

Migration thread
We discuss the work of moving the execution of outgoing live migration to a separate dedicated thread. Using a separate thread for live migration reduces contention with the IO thread and vcpus: higher throughput and more reliable downtime. Move migration to use synchronous IO. 

Block Migration
Now we can migrate storage, independently of how we are handling migration itself.

Migration performance on large guests

  • Performance on very large guests and the issues we encounter with such a guest. This discussion will include convergence and actual downtime
  • Live migration effects on the running guest (downtime and guest download impact)
  • Resource consumption
  • XBZRLE compression
  • Postcopy migration?
  • Use RDMA?

What is on the pipeline?

avatar for Juan Quintela

Juan Quintela

Senior Software Engineer, Red Hat
Born in Galicia (Spain). Starting doing PhD in Computing Science (Functional Programming). After 3 years, Linux Kernel Programming lured him. Worked at Mandriva as Kernel Maintainer from 2000 to 2005. In 2005 he joins the Virtualization Team at Red Hat. Currently he is working at kvm hypervisor, from handling migration with VMState, build system/config issues and other random bits. He teachs Operating Systems in Universidade da Coruña... Read More →

Wednesday May 29, 2013 4:20pm - 5:10pm

Attendees (13)