Is it possible that not activating a copy of Windows Server 2008 might have a performance impact, specifically over TCP?
- I've been provided with a Windows Server 2008 Oracle VM. It displays "This copy of Windows is not genuine". I've submitted a request for it to be activated to the system administrator, but the request is currently being processed.
- Local performance is not an issue, but simple SQL statements executed against a remote Oracle DB instance (on the same network, in the same IP range) via SQL*Plus take an exceptionally long time to complete. N.B. it's not the DB server - that's been tested extensively.
- The system administrator has run exactly the same queries on two other Windows Server 2008 Oracle VMs (clones) in the same IP range. One of the other machines demonstrated the same terrible performance, but the other did not. The only reported difference is that Windows on the machine without any issues is already activated.
I'm highly skeptical: this looks like a big red herring. I think there must be other differences in configuration which have not yet been identified.
Is it remotely possible that this is due to Windows activation?!
Apologies for not being more specific. It's on Oracle VM, not VMware. Do you think the VMware articles might still be relevant?
I can't add comments yet (!) but thanks a lot for the suggestions, I'll get the system admin. to give them a try.
Power Plan was set to balanced, but changing it to High Performance has made no difference.
Activating windows has made no difference - fundamentally this was not the issue.