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[Xen-users] 32bit vs 64bit memory usage question

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Subject: [Xen-users] 32bit vs 64bit memory usage question
From: "Jamie Burns" <fantasticjamieburns@xxxxxxxxxxx>
Date: Sun, 4 Feb 2007 12:14:36 -0000
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I recently installed a minimal 32bit version of Debian Etch, and then also installed Xen from Debian's package repository.

When Xen booted up, memory usage was just below 40MB (typical for such a debian install).

Then I decided to do the exact same install, but using the 64bit version of Debian Etch and Xen.

This time when Xen booted up, memory usage was just over 90MB - at least double that of the 32bit version.

Can anybody explain this to me? Why 64bit XEN would use double the memory?

If I try 32bit vs 64bit debian without using XEN, then memory use about 30MB with each - no doubling.

Jamie Burns.

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