NETWORK SPEED OR SERVER SPEED ?

Hello Experts,

We have two different lans:

LAN A - WORKING WITH SERVER win 2008 WITH DOMAIN, NETWORK CARDS 100 MBPS
LAN B - WORKING WITH SERVER 2012 using WORKGROUP, NETWORK CARDS 1 GB

It so happens that with the same App and query LAN A is like 300 % faster tan LAN B

Server in LAN A is even doing virtualization. Dont have technical data of this server since our App only has access to a virtual machine.

Server in LAN B is not doing virtualization. it is an Intel(R) Xeon(R) CPU 3E 1220 V2 @ 3.1 GHz 3.1 GHz  8 Gb RAM 64 bit.

So based on this information, what would you say is the main advantage LAN A has that makes queries of the same App 300% FASTER ?

Is it the speed of the server ?
The speed of the network cards does not count ?
Is it the domain in LAN A ?

Bottom line, What can I do to make LAN B as fast as LAN A ?
Regards,
RGuillermoProject ManagerAsked:
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Mal OsborneAlpha GeekCommented:
Really need to start doing some benchmarks, run performance monitor and determine the bottleneck.

First thing to try: Copy a large file. (At least 2Gb) form each server to a workstation. A 2Gb file, all being well should transfer in maybe 30sec or so on a Gb LAN.
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Gary CaseRetiredCommented:
If you're simply doing database queries the LAN speed isn't likely to be much of a factor; so you need to do some testing to see what's configured differently on the two systems.

Does LAN A have a lot more memory than LAN B ??    Does it have SSDs vs. traditional spinners on LAN B ??

i.e. what else is different between the two?

A simple file transfer test as suggested above will confirm the LANs are working at their rated speeds; but as I noted, if you're simply transferring the results of queries the amount of data being transferred is likely small enough that the LAN speed isn't really a factor.
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Lee W, MVPTechnology and Business Process AdvisorCommented:
Upgrade (or downgrade) the network card drivers.  (ODDS ARE, especially if it's not your VMs, it's something else but I've seen this have a huge impact with certain buggy drivers when Hyper-V VMs have been slow).
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RGuillermoProject ManagerAuthor Commented:
LAN A is using a server with more RAM and SSD as far as I was able to learn from the administrator.
Also the speed test of network went as predicted.
Thanks to all experts.
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