On 01/01/11 10:19, Adam Vande More wrote:
On Fri, Dec 31, 2010 at 5:35 PM, Da Rock
<[email protected]
<mailto:[email protected]>> wrote:
On 01/01/11 02:34, Martes G Wigglesworth wrote:
Thanks in advance, for any input.
Have you checked into Xen specifically and how it works? I think
you're where I was at a while ago, and a little investigation will
change your mind. FWIW Xen is a hypervisor, and platforms need to
be able to run in it, not the other way around. Have a read up on
it anyway.
Well yes Xen is a hypervisor, a type 1 and your OS needs to be
specifically modified to run as a Dom0 or a paravirtualized DomU.
What you want I think is something like VirtualBox- comparatively
slower, but about the best for what it is.
Whatever that means. Vbox is just as fast as Xen for most
applications give or take a little depending on what you're doing.
About the only place Xen can beat out Vbox is with in networking
performance with a guest using the virtio driver, however since I've
not tested the newer Vbox which is supposed to better performance
there. It's pretty hard to get accurate meaningful benchmarks across
a variety of hosts/guests/usage styles, but generally speaking Xen,
KVM, and Vbox are in the same performance league despite the
differences in hypervisors(Vbox and KVM are fairly similar here).
VBox guests may also have significantly better IO performance.
Xen's advantage now days lies in it's pci-pass-through support and all
the tools built for using/managing it. I think KVM may have pci
pass-through support too, but haven't messed with it. A lot of the
tools support is more abstracted as well with things like libvirt.
I like Vbox on FreeBSD for several reasons, but one of the main
benefits is using ZVOL's as the storage backend. You get a lot of the
ZFS goodies in your VM that way. You can create scripts to automate
your functions, everything done in the GUI can be done in the CLI and
more.
http://www.virtualbox.org/manual/ch08.html
Benchmarks were taken on comparatively similar platforms with the same
hardware with the same battery of tests- although not all could be run
in all cases (I'll try and find the link again if I can). Xen guest was
found to be as close to running on bare hardware, whilst VBox and KVM
were about a quart slower. Each of those had their strengths and
weaknesses, though.
I'd recommend VBox too- but anyone know the status of USB support on
FreeBSD? That and RDP would be good.
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