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Lacerte Tax AVD Performance Boost

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Tyler Reino

We found a fix for Lacerte Tax that was causing one of our CPAs performance to tank. We were unsure if it was AVD related or Lacerte related for some time. After many attempts in different areas, the culprit ended up being a network adapter setting. 

Large Send Offload (LSO) properties in Device Manager

Lacerte performs slowly if network speeds go below 20MB/s. All network interface cards, including the server's, should have Large Send Offload (LSO) files disabled to ensure true gigabit speeds across the network.

We ran the following in powershell, rebooted the host, and found an immediate performance increase

Get-NetAdapter

Disable-NetAdapterLso -Name "AdapterName"

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Comments (10 comments)

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Steve Hopler

Where are your Lacerte files located?  We have 2 clients on AVD who use Lacerte.

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Tyler Reino

We have them located on Azure Files Premium Storage

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Steve Hopler

Ok, Good info.  We have several CPA's using different tax apps on AVD.  I've never been happy with Azure Files performance in general with the exception of using it for FSLogix storage.  We're using a VM as a domain controller and have a data disk for storing data.  I did move one of our first clients from Azure Files storage to a file share due to poor tax application performance.  I wonder if the LSO setting would have helped.

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Andy Nolan

This is really great info. 

Have you folks been using host pools or personal desktops?

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Steve Hopler

We're using host pools

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Stephen Yeoh

Are there any special steps to install the server component and then the workstation (e.g. VDI or sysprep)? Or do I install the workstation setup to the golden image like I would a normal server/desktop set up?

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Steve Hopler

For my clients, the workstation setup is installed on the golden image.

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Stephen Yeoh

Steve Hopler thanks. Just to confirm, the initial server install will take place on the server, finishing up with the workstation install on the golden image. Is that correct?

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Steve Hopler

Yes, that is correct.  Make sure to install the server files to a network drive that both the server and golden image will have access to.

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Stephen Yeoh

Tyler Reino When I issue the get-netadapter command on the golden image, I see 2 NICS. Do I apply this command to both? If not, how do I tell which one should be updated? Both are up.

One is a Hyper-V NIC, the other is a Mellanox ConnectX-4 Lx Virtual Etherne.

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