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[Xen-users] Bandwidth usage during live migration

  • To: xen-users <xen-users@xxxxxxxxxxxxxxxxxxx>
  • From: "Nikola K. Zahariev" <nirangor@xxxxxxxxx>
  • Date: Fri, 19 Jun 2009 15:23:20 +0200
  • Delivery-date: Fri, 19 Jun 2009 06:27:18 -0700
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>


I am a little bit confused about how XEN manages live migration.
According to a paper [1] XEN has some kind of adaptive algorithm which
increases the bandwidth to be used during transfer. It depends on the
rate the pages get dirtied. It says there is a lower and an upper
limit for the bandwidth to be used which the administrator could set.

But actually there are no such parameters (at least in the config options).
I did some tests and it looks to me that XEN is using the maximum
bandwidth of the network available during live migration. Could
someone confirm this?

Thanks in advance for any replies!

Best regards,


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