[Xen-users] Live migration bandwidth limits

[Travis Vachon <Travis.F.Vachon@xxxxxxxxxxxx>]

Hi all

In the Live Migration of Virtual Machines paper available at the 
Cambridge Xen website migration bandwidth limits are mentioned. 
Specifically, in its discussion of the dynamic rate limiting algorithm, 
the paper mentions that an administrator can select upper and lower 
bandwidth limits for a migration.
I've looked fairly hard, but can't seem to find much information on how 
to set these. The xm man page mentions an -r/--resource flag which it 
claims sets the upper bandwidth limit on migration, but when I attempted 
migration with -r 1 set, the information in xend.log reported transfer 
rates upwards of 100Mb/s. In addition, I didn't notice any difference in 
migration time between using the -r 1 flag and not. I haven't been able 
to find information on setting the lower bandwidth limit at all.
Has this not been implemented (I suppose this might be a more 
appropriate question for the devel list, but I thought I'd ask here 
first), or if it has, does anyone have any information on how to do this?
Thanks!

Travis Vachon

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