Thank you for the reply!
I used the term "disk usage" as what you mentioned first; the information which can be retrieved via 'df' command on linux system...
I'll then have to consider different approach to do what I want.
Anyway, thanks again for your great help.
Best regards
bgkim
2016-01-04 22:21 GMT+09:00 Michal Privoznik <mprivozn@xxxxxxxxxx>:
On 04.01.2016 01:19, BYEONG-GI KIM wrote:
> Hello. I'm a new getting started to learn the libvirt API.
>
> I've tried to find APIs which retrieve resource metrics such as cpu, disk,
> memory, and network I/O usages, but I could find few related thing; I was
> intended to use libvirt-Java binding first, it seems I'd be better to use
> the others like Python binding or C API though. The Java binding API is
> likely to provide very limited API list comparing with the above APIs so
> far.
>
> So, I'd like to know which APIs can retrieve that resources from VMs. I
> don't care about the language, but I really want to know whether such APIs
> even exists or not.
>
> As far as I know, cpu, memory, and network I/O seems being provided, but
> I'm not sure disk usage per VMs can be obtained via libvirt API.
I'm not sure what do you mean by 'disk usage'. You mean like 'how many
bytes are used/free on a disk'? If so, I'm not sure libvirt can help. I
mean it's dependent on guest configuration and you should use 'df' ran
from within guest to retrieve that info. It falls out of libvirt's scope.
If you, however, mean disk I/O - this can be obtained via
virDomainBlockStatsFlags() API.
Michal
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