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HisTooth
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Windows 2003 VM and paging numbers

I P2Ved 4 Windows 2003 web portal servers running IIS. Prior to virtualizing ran a perfmon against the servers to establish a performance baseline (CPU, paging, disk, memory). After P2Ving re-ran the same test (test tool - LoadRunner).

After virtualization I'm seeing good performance from the CPUs/disks, but am concerned about some crazy paging numbers. Prior to P2Ving, I saw a few brief spikes of roughly 25 pages per second. Post-virtualization I'm seeing paging numbers regularly surpassing 20,000 pages per second. Disk file activity is practically nil, so these aren't hard pages (app performance is still good). What is happening to generate these numbers?

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