Hi Frank, Regarding the last point about disabling virus scanners for Windows XP guests, does this mean that XP guests running in virtualbox are immune to virus attacks??
Cheers, Louis. On 9/19/08, [EMAIL PROTECTED] < [EMAIL PROTECTED]> wrote: > > ------------------------------ > Message: 2 > Date: Fri, 19 Sep 2008 08:22:28 +0200 > From: Frank Mehnert <[EMAIL PROTECTED]> > Subject: Re: [vbox-users] How to get best virtualbox performance? > To: [email protected] > Message-ID: <[EMAIL PROTECTED]> > Content-Type: text/plain; charset="iso-8859-15" > > On Friday 19 September 2008, tchomby wrote: > > Can anyone give me any hints about improving the performance of my > virtual > > machine? > > I'm running an Ubuntu 8.04 VM in VirtualBox 2.0.2 on Windows XP. I'm > using > > Camtasia Studio in Windows to screen-capture the virtual machine windows. > > It works well but the vm's performance isn't too great, applications and > > windows take a long time to open. I tried increasing the base memory size > > and video memory of the vm but it didn't seem to make any difference. > > 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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