[mdlug] hypervisor/vm

[David Hensley]

Thank you all for the input, it's been very helpful.
Yes it seems that intensive cpu or disk IO, and in some cases even memory
IO (caches of caches of caches etc), can still cause problems; kdump is a
specifically noted issue for example.

 I had forgotten about OpenStack completely.  Has anyone played with
running a private personal cloud? Has anyone actually tried using one of
the commercial VPS services like DreamHost , GoDaddy, Rackspace, or Linode,
etc, for personal (as opposed to coporate, institutional) uses?  I don't
have a use case, I'm just considering experimenting/playing for the heck of
it.


On Sat, Oct 26, 2013 at 11:42 AM, Gmail-otakurider <otakurider at gmail.com>wrote:

> I have never seen it correctly working on PC based systems, the issues
> seemed to be the emulation support for the (VT-x and ADM-V) emulation of
> that is still flaky, ESX Server was the most stable from testing.  I
> have seen VM within VM on Data Center Systems Level server like HP
> (K,N,V class) or IBM (Data Center).  The problem is the emulation of the
> emulation of the system.  Even with V class HP's with 50G of memory
> expansion, 8 CPU (yes 8 separate CPU's), a VM within a VM was prone to
> crash and slow if you did any CPU intensive usage.  You have control of
> the hardware with the first emulation but the second not so much.
> Just load up with memory and run them separate and you should be fine
> for anything you want to do.  I have run server based games (opensim,
> etc.) in a VM and they run great.   Also make sure you enable the
> visualization option in the bios, it will run more stable with 32bit and
> 64bit systems side by side.
>
> Pat
>
>
> On 10/26/2013 10:15 AM, Carl T. Miller wrote:
> > Michael ORourke wrote:
> >> I don't really get what you are trying to do with the VM inside of a VM.
> >> I suspect that it is technically possible, but who does that?
> > People running demos.  People creating documentation.
> > People running proof of concept systems.  People who
> > want to experiment.  Me.  And I'm sure there are others.
> >
> > c
> >
> >
> > _______________________________________________
> > mdlug mailing list
> > mdlug at mdlug.org
> > http://mdlug.org/mailman/listinfo/mdlug
>
> _______________________________________________
> mdlug mailing list
> mdlug at mdlug.org
> http://mdlug.org/mailman/listinfo/mdlug
>