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List:       libvirt-users
Subject:    Re: virsh dommemstat doesn't update its information
From:       Michal Privoznik <mprivozn () redhat ! com>
Date:       2021-03-29 14:53:39
Message-ID: 86bdfb56-c636-b650-0000-c569ffb5182a () redhat ! com
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On 3/29/21 4:00 PM, Lentes, Bernd wrote:
> Hi,
> 
> i'm playing a bit around with my domains and the balloon driver.
> To get information about ballooning i use virsh dommemstat.
> But i only get very few information:
> 
> virsh # dommemstat vm_idcc_devel
> actual 1044480
> last_update 0
> rss 1030144
> 
> Also configuring "dommemstat --domain vm_idcc_devel --period 5 --live"
> or "dommemstat --domain vm_idcc_devel --period 5 --current" does neither update nor \
> extend the information. 
> In vm_idcc_devel virtio_balloon is loaded:
> idcc-devel:~ # lsmod|grep balloon
> virtio_balloon         22788  0
> 
> Guest OS is SLES 10 SP4. Is that too old ?

Yeah, that is ~10 years old and I believe that virtio_balloon module is 
lacking feature that enable QEMU (and subsequently libvirt) report more 
info.

Michal


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