Jeff Wouters's Blog

Me next few posts will be about troubleshooting performance issues on a Server Based Computering environment. The first one, some basic things.
I know it’s short, but I have to start somewhere…

Firewalls
In my opinion firewalls are required in a secure environment, but they can also be a pain for administrators when troubleshooting problems.
Here are some possible solutions you can investigate:

Try disabling TCP Chimney Offload, RSS, Receive Window Auto-Tuning Level on Windows Server 2008 one by one to see whether it makes any difference.

To disable TCP Chimney Offload, follow these steps:
*) Use administrative credentials to open a command prompt.
*) At the command prompt, type the following command, and then press ENTER:
   netsh int tcp set global chimney=disabled

To disable RSS, follow these steps:
*) Use administrative credentials to open a command prompt.
*) At the command prompt, type the following command, and then press ENTER:
   netsh int tcp set global RSS=disabled

To disable ‘Receive Window Auto-Tuning Level’, follow these steps:
*) Use administrative credentials to open a command prompt.
*) At the command prompt, type the following command, and then press ENTER:
   netsh interface tcp set global autotuninglevel=disabled

Printer Server
There are some workarounds for general Printer Server performance issues. Note that the underlying problem still exists, this is only a possible workaround!
My next post will be focused on Printer Drivers in a Server Based Computing Environment and should be posted somewhere this week.

To let the client render the printjobs instead of the print server, follow these steps:
*) launch Print Management
*) Select a printer
*) right click, Manage sharing
*) uncheck the following option: Render print jobs on client computers

To disable advanced features of printers, follow these steps:
*) launch Print Management
*) Select a printer
*) right click on the printer
*) select printer properties
*) select Advanced
*) uncheck Enable advanced features