How to Reduce noderunner.exe’s RAM Utilization

On the SharePoint 2013 server, open Server Manager -> Tools -> WindowsPowerShell ISE

Click File -> Open and navigate to

C:Program FilesMicrosoft Office Servers15.0SearchRuntime1.0

Open noderunner.exe.config

If you cannot see noderunne.exe.config, click on the drop down next to file name and select All Files (*.*)

Modify the following line:

<nodeRunnerSettings memoryLimitMegabytes=”0″ />

Noderunner.exe is set to “0” by default, which means unlimited memory usage. Change the “0” to a number in megabytes to limit the total amount of ram that it can use.

For example: <nodeRunnerSettings memoryLimitMegabytes=”1024″ />

Click save and exit. Restart the SharePoint server.

You can greatly increase SharePoint 2013 server performance by stopping the following services:

· SharePoint Search Host Controller

· SharePoint Search Server 15

Of course, this should be done if you are not using the search service. If you are, this may not be an option.

If that’s the case, your best option may be to increase your server’s available RAM to meet or exceed the minimum requirements. You can also mitigate the performance effects caused by the search service if you reduce the amount of Ram available to noderunner.exe however this is less desirable than stopping the search services.