Xen project Mailing List

Jason,

Yes, I'm afraid it's true. This does in your case constitute a reason to migrate from Xen to KVM. If along with this you decide to migrate from the Xen-users mailing list to somewhere else, we'll all certainly be sorry to see you go, but we understand that it's a sacrifice you might be willing to make and wish you all the best of luck with your transition.

Regards,

On Fri, Dec 15, 2017 at 10:18 PM, Jason Long <hack3rcon@xxxxxxxxx> wrote:

Can it work well? I mean is release the memory and back it to host.
--------------------------------------------
On Fri, 12/15/17, James Dingwall <james@xxxxxxxxxxxxxx> wrote:

Subject: Re: [Xen-users] Xen ballooning problem.
To: "Jason Long" <hack3rcon@xxxxxxxxx>
Cc: xen-users@xxxxxxxxxxxxx
Date: Friday, December 15, 2017, 5:29 PM

Hi,

On Fri, Dec 15, 2017 at
01:28:22PM +0000, Jason Long wrote:
>
Hello.
> Is it true that "Xen
ballooning" has some problems? For example, when it
dedicate memory to VMs then it can't release it and back
it to the host and it is a reason for migrate from Xen to
KVM.
>
> Thank
you.

I have found a
few combinations of xen/kernel which don't work well but
otherwise I find it works for my case.
Currently xen 4.9.1, 4.1.47 dom0 kernel, mix of
Ubuntu 16.04 4.4 and 4.14 kernels in pv guests. I use the
tmem
module to automatically balloon the
guest up/down as memory pressure changes.

James

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