asp.net mvc - Azure website suddenly responds slowly -

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i have azure website consisting of wcf endpoint , mvc website running on azure. runs on basic medium/large tier - no cap in cpu free or basic has. has been running 6 months probably, regular deployments , updates. , performance has expected kept consistent. takes forever load mvc website.

the flow follows; receive call via wcf endpoint , direct people url mvc web site. resides on same "web site" inside azure.

the strange thing can see no difference in log files. wcf endpoint responds , can see heavy lifting inside mvc responds expected, still user left waiting forever on specified url?

as said can't see in performance logs mvc controllers, somehow seems https request takes ages, how debug or measure this?

i in process of getting visual studio 2015 see remote profiling can generated through kudo - somehow don't think problems resides here. kind of blanking thoughts on wrong , how debug appreciated. if knows azure has released within last couple of weeks might have slowed application down.

any chance have application insights turned on mvc site? has feature track dependency calls , should able give idea of taking long time.

https://azure.microsoft.com/en-us/documentation/articles/app-insights-asp-net-dependencies/


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