On Mon, Jun 02, 2014 at 02:16:00PM +0200, Michal Privoznik wrote:
> If user or management application wants to create a guest,
> it may be useful to know the cost of internode latencies
> before the guest resources are pinned. For example:
>
> <capabilities>
>
> <host>
> ...
> <topology>
> <cells num='2'>
> <cell id='0'>
> <memory unit='KiB'>4004132</memory>
> <cell id='0' distance='10'/>
> <cell id='1' distance='20'/>
I'd be a little more comfortable if we didn't use a <cell>
within a <cell>. Perhaps lets use 'sibling' as the name
instead and group the elements. eg could we do
<distances>
<sibling id="0" value="10"/>
<sibling id="1" value="20'/>
</distance>
> </topology>
> ...
> </host>
> ...
> </capabilities>
>
> we can see the distance from node1 to node0 is 20 and within nodes 10.
One thing with having the data under each <cell> is that we're
actually reporting twice as much as we need to. ie the distance
between cell N and M is reported under both N and M. A different
option would be todo reporting at the toplevel within <topology>
eg
<distances>
<siblings distance="10">
<cell id="0"/>
<cell id="1"/>
</siblings>
</distance>
I'm not sure whether doing this is worth while or not though ?
Regards,
Daniel
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