Network Tweaks - Increase Network Performance

If you increase the number of network redirector buffers it may considerably increase your network throughput. Each extra execution thread that you configure will take 1K of additional nonpaged pool memory, but only if your applications actually use them.

To configure additional buffers and threads, follow the next steps:

  1. Open the Registry Editor click on the Start button on your taskbar, then click on Run and type "regedit" and click on OK to start the regedit utility.
  2. Expand HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\LanmanWorkstation\Parameters (see picture 1).

    Picture 1
  3. Modify or Add Value of type DWORD for:
    • MaxCmds=dword:00000064 - range is 0 - 255 and the default value is 15. Set to a higher number, try 64 for starters.
    • MaxThreads=dword:00000064 - set to the same value as MaxCmds.
    • MaxCollectionCount in the same key is a DWORD buffer for character-mode named pipes writes. You might want to increase it from te default 16 as well, its' range is 0 - 65535.
  4. The modifications you made will be in effect after you logout or reboot your PC.



Lex van der Horst

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