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 <mpriv...@redhat.com>: > 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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