Fedora 18 under Hyper-V on Server 2012

[John Whitley]

I have been persuaded to move an application running under linux on to a 
Hyper-V VM.

I am having significant performance issues and hope some one can cast 
some light on them.

I am having to run on a legacy network card as the 'synthetic' NIC gives 
poor through put.
This gives a drop of about 50% compared with the original machine.

Disc I/O is down by a factor of 8 when copying significant amounts of 
data. (say 7 Gbyte)

The application originally ran on Fedora 15 on an HP DL385 (8-cores) 
with 8Gbyte memory
The VM is running under Fedora 18 on a Dell R520 with 8 Gbyte with a 
fixed VHD disc

Am I correct in assuming that Fedora 18 kernel has the latest Microsoft 
Integration Modules?

Any suggestions would be appreciated

John Whitley