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Re: [Xen-users] Xen ballooning problem.



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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