[virt-tools-list] CPU graphs

Cole Robinson crobinso at redhat.com
Tue May 31 16:20:50 UTC 2011

On 05/27/2011 11:11 AM, Alan Bell wrote:
> On 27/05/11 10:56, Richard W.M. Jones wrote:
>> I think this should be configurable.
>> I can see myself wanting to view it both ways: either "I've got 12
>> cores, and only 1/12 of that resource is being hogged, so who cares"
>> vs "why is that one guest spinning at 100%?"
>> Rich.
> I can see an argument for an overall CPU (and ram) use sparkgraph at the 
> host level, but on a per-VM basis I would expect it to show a percentage 
> of what is available to that VM. If you have more than a few cores on 
> the host the CPU graphs become useless as they can only show a couple of 
> pixels of variation.
> Would be great to get a per-vm memory utilisation chart, is the data for 
> that exposed? If someone can point me in the direction of the data for 
> that I will have a go at adding it.
> Alan.

Libvirt has a fairly new MemoryStats API that we don't use in
virt-manager yet. It could be used to generate memory usage graphs AIUI.


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