Re: [Xen-users] can Xen use swap instead or RAM?

To:	George Shuklin <george.shuklin@xxxxxxxxx>
Subject:	Re: [Xen-users] can Xen use swap instead or RAM?
From:	Martinx - ジェームズ <thiagocmartinsc@xxxxxxxxx>
Date:	Fri, 24 Sep 2010 16:24:20 -0300
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Mmm... You mean this:

http://blog.xen.org/index.php/2008/08/27/xen-33-feature-memory-overcommit/

On 24 September 2010 15:49, George Shuklin <george.shuklin@xxxxxxxxx> wrote:

Yes, It is nice technology, but it still do not allow hypervisor
swapping or overselling. :)

В Птн, 24/09/2010 в 14:57 -0300, Martinx - ジェームズ пишет:

> Hi!

> The Xen 4.0 introduces the TMEM project, take a look at it:

> http://wiki.xensource.com/xenwiki/Xen4.0

> TMEM allows improved utilization of unused (for example page cache)
> PV guest memory. more
> information: http://oss.oracle.com/projects/tmem/
>

> On 24 September 2010 14:46, George Shuklin <george.shuklin@xxxxxxxxx>
> wrote:
> You can use swap of any size at VM level (every VM will have
> it own
> swap).
>
> Right now there is no way to do hypervisor swap or oversell
> memory.
>
> В Птн, 24/09/2010 в 13:14 -0400, Boris Epstein пишет:
>
> > Hello listmates,
> >
> > Let's say I've got a machine with 1 GB of RAM and I want to
> host 3 512
> > MB virtual machines on it? Is that possible - i.e., is it
> possible to
> > force Xen to use swap and pass it off as RAM to the VM's? I
> know it is
> > slow and inefficient but for the purposes of testing - is
> that
> > possible?
> >

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Re: [Xen-users] can Xen use swap instead or RAM?