Parallels 5 Performance Tip:

I had trouble using 8 cores on and XP Pro virtual machine with 3072MB RAM allocated.

It was very slow, which makes no sense given the specs of my Mac Pro and the resources allocated.

Short story: go back to 2 cores, and 2 gigs of RAM. This is fine for XP, and it runs a LOT better.

My theory is that this old version of Parallels doesn't handle that many cores well.

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