What is WCF throttling? | WCF Interview Question

WCF throttling enables us to regulate the maximum number of WCF instances, concurrent calls and concurrent sessions. Basic purpose is to control our WCF service performance by using Service throttling behavior.

In configuration file we can set this behavior as follows:

   <serviceBehavior>
        <behavior name=”MyServiceBehavior”>
                    <serviceThrottling
                                     maxConcurrentInstances=”2147483647”
                                     maxConcurrentCalls=”16″
                                     maxConcurrentSessions=”10″
         </behavior>
   </serviceBehavior>

Above given values are the default ones, but we can update it after looking into the requirements of our application.