virtualbox.org

I have an apache/xampp System with PHP free chat running in a virtualized win xp on an win xp host.
When I start the xampp system from the shared folder I get a reaction time of about 5000 ms (php free chat shows me that), also I have a periodically high (=100 %) cpu usage on the host.
When I copy the xampp system directly into my virtual xp and run it from there the reaction time is only 700 ms. Thats a lot of better and in addition I never have 100 % CPU usage.

When started from the shared folders, the "VBox Tray" Application also takes a high percentage of the CPU power.
How comes that high performance loss and why does "VBox Tray" steal so much CPU time?

Thanks for your help.

What kind of shared folders? Guest Additions has a shared folders feature, or you could be using a network share. I've noticed what I think is a big performance drop with the GA-SF feature in 3.x, but a network share is still pretty fast, especially if I'm using "Host Only Network" mode (I add a second NIC if necessary to get this), since it means I map the share to a drive letter (in my Windows guest) using a static IP address. There may be better ways, but that works for me.

I meant the shared folders feature of the guest additions.

A normaly networkshare with bridged network wasn't fast as well. I'll try with a host only adapter network share.

But still there should be done a lot of speed improvements.