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On Jan 30, 2013, at 8:32 PM, Vishvananda Ishaya wrote:

Hi phil,

It is used to generate the rxtx_cap in the network_info cache which is in turn used to generate qos params in xenapi in:

~/os/nova/nova/virt/xenapi/vif.py

I don't believe it is used in the other drivers at all.

tr3buchet or _cerberus_ might be able to add a bit more detail

Vish

On Jan 30, 2013, at 1:43 PM, "Day, Phil" <philip.day at hp.com<mailto:philip.day at hp.com>> wrote:

Hi Folks,

Can anyone point me to where the rxtx factor of an instance type is currently used in the code please ?

I was thinking about the use case of having instance types which are differentiated by their network bandwidth, and how that could be accommodated in a scheduler filter and passed down to the virt layer for cgroup configuration, and the rxtx factor seems to be the obvious starting point – but I was struggling to see how its already used.

Has anyone else looked at this as an issue ?

Cheers,
Phil
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