Poor application performance in VM

Soldato
Joined
25 Nov 2004
Posts
4,788
Location
Hertfordshire
Hi,

Not sure if this is the right place for this question...

I have a LISP based simulator application that runs without issues on the hardware natively but as soon as it is put in a VM, performance becomes quite flakey.

The application is quite sensitive to timings so CPU (and to some extent network performance) are important. I have tried HyperV and VMWare based setups but results are generally the same.

I appreciate this is quite a vague question but is there anything to look into that would improve stability when running in a VM? I've experimented with number of cores and priority/affinity both within the VM and resource priority on the hypervisor, fixed disks, memory etc.

Is there anything else?

Cheers.
 
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