ServiceThrottling default values?

Question

Hi,

According to this link the default values of WCF 4.0 is this :

• MaxConcurrentSessions: 16 * processorcount
• MaxConcurrentSessions: MaxConcurrentCalls + MaxConcurrentSessions 100 * processorcount
• MaxConcurrentSessions: 100 * processorcount

I know, not that clear. When looking in the documentation at MSDN(WCF 4.0) it says this :

• maxConcurrentCalls : 16
• maxConcurrentInstances : 26
• maxConcurrentSessions : 10

If I however look at the WCF 4.5 some of the values is based on CPU like the first example

• maxConcurrentCalls : 16 times the processor count
• maxConcurrentInstances : The default is the sum of the default value of MaxConcurrentSessions and the default value of MaxConcurrentCalls
• maxConcurrentSessions : The default is 100 times the processor count

So witch one is the correct one?

Migratory

Answer 1

Before WCF 4.0 the default values were

• Concurrent Calls: 16
• Concurrent Sessions: 10
• Concurrent Instances: Concurrent Calls + Concurrent Sessions (26)

From WCF 4.0 onwards they are

• Concurrent Calls: 16 * processor count
• Concurrent Sessions: 100 * processor count
• Concurrent Instances: Concurrent Calls + Concurrent Sessions

Hertfordshire

For reference, here's an MSDN blog post that explicitly states the changes listed above that were made starting in 4.0: blogs.msdn.com/b/appfabriccat/archive/2010/10/29/… – Nernst