[QCLUG] Virtual Machines

Fri, 28 Mar 2008 09:47:44 -0500

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I believe there a way to use KVM ( linux kernel cpu VT extension for
VirtualBox ) should make it run faster on newer processors

i wonder if any of these may support 3D one day ?

On Thu, Mar 27, 2008 at 11:54 PM, Aaron Johnson <acjohnson@pcdomain.com>
wrote:

>  Is there a way to make VirtualBox automatically start a VM on boot? I
> like VirtualBox as it has very good performance but I've never been able =
to
> use it as a server replacement for VMWare because I cannot find this feat=
ure
> anywhere=85.
>
>
>  ------------------------------
>
> *From:* qclug-bounces@qclug.org [mailto:qclug-bounces@qclug.org] *On
> Behalf Of *Arron Lorenz
> *Sent:* Thursday, March 27, 2008 11:52 PM
> *To:* qclug@qclug.org
> *Subject:* Re: [QCLUG] Virtual Machines
>
>
>
> I've been using VirtualBox as a virtual server for my personal machine. I
> do like the program over all. For an open source program it has very very
> close performance to vmware server. Though cooper is correct vmware is st=
ill
> faster. I would like to point out that vmware has released vmware server
> 2.0 beta http://www.vmware.com/beta/server/
>
> It's run using Apache's tomcat appliance server. I do like it's completel=
y
> headless operation in windows and under linux (I'm using it on ubuntu). Y=
ou
> navigate/configure the vm from a web interface 127.0.0.1:8333\ui . The
> speed over the web interface from across the internet is pretty responsiv=
e
> though I would still use RDP for the connection to the vm.
>
> On the downside the vm uses up it's allocated ram, but also the
> application for me running in Firefox tends to be pretty ram intensive.
>
>
> Well that's my 2 cents.
> Arron
>
>
>
>  On Thu, Mar 27, 2008 at 10:39 PM, Chris Cooper <QCAdmin@gmail.com> wrote=
:
>
> So as to not hijack a perfectly good thread on partition sizes, I
> decided to post anew some thoughts on the Virtualbox comments brought
> up.
>
> I have recently had a chance to do more research on virtual machines
> for work, and inside Ubuntu, From my experience VMWare server performs
> slightly better than virtualbox after you install vmware-tools on the
> guest-OS.  While not open source, it is free from www.vmware.com.  The
> VMWare-tools are deffinately a MUST on the guest.  Without the proper
> VMware mouse and video driver installed, performance is sluggish at
> best.
>
> If you have a processor that supports the virtualization flag, it can
> make a huge performance gain for a 64-bit guest OS.  However, it seems
> to slow down XP VM's under 7.10.  More info on the flag can be found
> here:
> http://www.howtogeek.com/howto/linux/linux-tip-how-to-tell-if-your-proces=
sor-supports-vt/
>
> It is important to note that as of this time, VMWare doesn't have much
> if any support for virtualizing your 3D card, so trying to game inside
> a VM isn't real practical.  For that, I would stick with wine and
> cedega.  This also means you may notice a big slow down in a Vista VM
> if you have the Aero interface on.  It seems to run decently well with
> it disabled, though.
>
> Another fun use for VM's is trying out Live CD's.  I am constantly
> downloading different Live cd's for various things, so I created a
> small VM with no hard drive, that I use for trying out a live cd
> before I burn it.  CD-R's are cheap, but it still takes a fair amount
> of time to burn and reboot just to see what is inside.
>
> As for Xen, it doesn't really compete on the same level as Virtualbox
> and VMware server.  Xen is probably one of the fastest of all the
> virtual machine apps, but it is a hypervisor (a lightweight linux
> distro who's sole function is to host VM's), and can't be run inside
> your main environment.  It is restricted to 64-bit processors only,
> and doesn't provide access to the guest VM's from it's console, since
> it is command line only.  However, for hosting multiple VM's on one
> server, it is great.  VMware offers their ESX hypervisor, which has a
> better tool set, but isn't as efficient at Xen as sharing resources
> over multiple VM's.
>
> TechThrob had a really nice write up comparing VMware Server,
> Virtualbox, Qemu and Parallels. It lacks some heavy tech specs, but is
> good reading for people just getting into the whole virtual machine
> thing.
> http://www.techthrob.com/tech/linux_virtualization.php
>
> --Cooper
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>
>
>
>
> --
> From:
> Arron James Lorenz
> Reel to Reel Drive In
> Reach Global Networks LLC
> 563-579-7046
>

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