By default .NET allows only 2 connections to a given network address per AppDomain
. In most cases this works fine but if your app makes a couple of dozens network calls a second then this value might be too small and it might actually cause a bottleneck that is very hard to diagnose. I decided to increase the value of this setting to the value
that is recommend by Microsoft
(number_of_cores x 12
) and one of my services speeded up significantly. Having said that I have to stress that there is no guarantee this setting will work in your case. Remember, measure, measure and once again measure when you optimize.
And the setting is:
<add address="*" maxconnection="96"/>
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