I did a benchmark with Virtualbox:

My environment:
* Core 2 Quad, Q6600@3GHz
* Windows XP SP3@host SP2@VBOX with GuestAddon
* http://crystalmark.info/software/CrystalMark/
  CrystalMark 2004R3
* Sapphire X1650
* VBOX is running on FBSD7.2-REL/amd64
  using http://people.freebsd.org/~miwi/vbox/virtualbox_5.tgz
* Running with fullscreen mode 1280x1024 32bit
Here is the result
-----------------------------------------
      host(4CPU) host(1CPU) vbox(1CPU)
Mark   173047       90925    86496
ALU     50985       13493    13060
FPU     63746       15126    15323
MEM     21822       25582    16516
HDD      9336        9331    30600(*)
GDI     15153       15195     5127
D2D      5997        5998     5108
OGL      6200        6200      762
-----------------------------------------
(*)somehow lot faster

I don't know how to use two CPUs, even changing setting
doesn't change.

Usually I cannot usually launch VirtualBox even by root.
A workaround is that invoking and killing VirtualBox
many times for me. After some tries I can launch...

thanks

From: Martin Wilke <miwi@FreeBSD.org>
Subject: Re: [Call For Testing] VirtualBox for FreeBSD! take 4
Date: Wed, 27 May 2009 15:43:43 +0200

quoted text
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
>
> Howdy,
>
> First of all sorry for all unanswered mails, I got a stupid flu,
> but now i feel better... ok now back to vbox, time for a new call
> for testing :-)
>
> Following was added/fixed:
>
> - - ACPI Support was added
> - - hostDVD support was added
> - - Fix startup on HEAD
> - - Plist problem under AMD64 was fixed
> - - Qt4 Frontend is now Optional
> - - Desktop file was added
> - - Xorg dependencies was fixed
> - - Guest additions was added (thx to Maho NAKATA <chat95 (at) mac dot com>)
>
> Open task:
>  We have got 2 patches for nls support and the request
>  to make dbus and pulseaudio optional. These both will
>  be added with the next run.
>
>  We'd like to say many many thanks for all your feedback.
>
> http://people.freebsd.org/~miwi/vbox/virtualbox_5.tgz
>
> Happy Testing :-)
>
>
>
> - --
>
> +-----------------------+-------------------------------+
> |  PGP    : 0xB1E6FCE9  |  Jabber : miwi(at)BSDCrew.de  |
> |  Skype  : splash_111  |  Mail   : miwi(at)FreeBSD.org |
> +-----------------------+-------------------------------+
> |	Mess with the Best, Die like the Rest!		|
> +-----------------------+-------------------------------+
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> wwQAn2r0W/12iidjOfgvX05QPNQX1oUc
> =b8tt
> -----END PGP SIGNATURE-----
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