Thanks for the tips. My host has 1.25GB RAM, so I assigned 384MB to the
guest. Maybe I could assign a bit more?
I turned the guest video memory back down to 8MB.

I don't seem to have the option of using VT-x/AMD-V, it's greyed out, maybe
my host processor doesn't support it (Intel Xeon 2.66GHz). I've already
installed the guest additions, and USB support in the guest was already
disabled. I haven't recompiled the guest kernel though. Will that make a big
difference?

I also uninstalled/closed as many programs in the windows host as possible.
All this seems to have made a small difference, the vm feels snappier,
applications and popup menus etc. are still a little slow to open,
especially during screen capture, but slightly quicker than before. Maybe
this is the best I can hope for?

On Fri, Sep 19, 2008 at 7:22 AM, Frank Mehnert <[EMAIL PROTECTED]>wrote:

> Some advises:
> * More host memory is better. You should have _at least_ 512MB. With
>  512MB for the host I would suggest you to use 192-256MB for the
>  one and only guest. With 1GB RAM use 384MB RAM. Don't assign too
>  much of host your host RAM to the guest!
> * Don't assign more than 8MB VRAM to the guest, this will not help
> * A better host processor. It seems that the latest AMD-V processors
>  (like Phenom 9150) show the best performance as VBox can use their
>  nested paging feature
> * For a normal Linux guest, try if activating VT-x/AMD-V helps to
>  increase the performance or if the performance suffers, both is
>  possible but usually the Raw mode is faster than VT-x/AMD-V (except
>  AMD-V + nested paging)
> * Recompile your guest kernel to use a 100HZ timer.
> * Install the guest additions. The X extensions will increase the
>  graphics performance
> * Disable the USB controller for that VM. An active USB controller
>  with one or more active USB devices will notably increase the host
>  CPU load. We will improve this behaviour in future releases.
> * Optimize the guest services. For WinXP guests, disable Virus scanners
>  if possible.
>
> Kind regards,
>
> Frank
> --
> Dr.-Ing. Frank Mehnert    Sun Microsystems    http://www.sun.com/
>
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> http://vbox.innotek.de/mailman/listinfo/vbox-users
>
>
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