Aug 14, 2017 11:15 AM|devrishi|LINK
We have a VM on Azure with Windows Server 2016 and IIS v 10. We have hosted a Dotnetnuke based website( Framework 4.5.1) for asp.net 4.0 app pool framework which uses SQL 2016 as backend. We are facing a strange behavior on this newly created server and
hope that you will provide some insight to it.
Normally this combination of frontend and backend renders our website with a TTFB ( Time to First Byte) around 2 seconds in a logged in user scenario. However when we install “Azure Application Insights” on this machine ( only installation and not enabling
it) and restart the server, the TTFB automatically comes to about 500 ms in a logged in user scenario. We tried to compare any changes made to machine.config etc. during this installation but could not observe any. Could you please analyse and suggest what
could have caused this behavior? The moment we uninstall “Azure Application Insights” and restart machine, TTFB again increases to 2 seconds.
Any suggestions on this will be extremely helpful. Thanks