[libvirt] [PATCH v2 0/7] Add support for setting QoS

[Laine Stump]

On 07/18/2011 09:59 AM, Jiri Denemark wrote:
> One more thing. Would it be possible to also implement new APIs to manage
> network bandwidth on-the-fly? It's not for this patchset but is does sound
> like a good idea to have the possibility to, for example, restrict bandwidth
> of a running domain since more domains need to use the network or increase the
> bandwidth because host's owner got more money from domain's owner :-)


As a matter of fact, this would be a nice feature for many network (and 
other) settings. For example, right now if you add a host to the static 
host mappings in a network, you must restart that network for it to take 
effect. Restarting a network disconnects all the guest interfaces using 
that network, and either the guests must be restarted, or at the very 
least their interfaces must be manually detached and reattached. In 
reality, though all that's needed is to update a text file on disk and 
SIGHUP dnsmasq.