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Re: Guest VM shows 90% memory usage, doesn't match vSphere

Another thing to keep in mind here is the 2008+ uses memory for file I/O caching to improve performance and reduce disk I/O.  So in your snapshot the VM is almost using 1 GB for file cache.  That cache is discarded as needed to service application memory needs, but it makes your machine look memory starved.  Might want to see if you can change how memory is monitored on your VMs to account for the cache.


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