I have a Application (Web API , .NET 4.5) hosted as Azure cloud Service.

Vm size large and 4 instances.

When I am monitoring the application with new relic,I am seeing that  ExecuteRequestHandler takes almost 80% of total response time and making the application response very slow.

To increase the performance of the application I want to reduce the time taken by ExecuteRequestHandler.

I tried to search on the internet. but didn't get any help apart from following link.

http://stackoverflow.com/questions/30489700/executerequesthandler-spent-most-of-the-time

The above link didn't help much.

Any help on follwoing two points is much appreciated.

1) How to to reduce the time taken by ExecuteRequestHandler

2) How to increase thread pool size of web role.

Greetings,

Please check the below links which might help you to resolve the issue.
By the time I am researching on this with regards to your request, I will get back you with update.

https://msdn.microsoft.com/en-us/library/azure/jj717232.aspx

https://social.msdn.microsoft.com/Forums/en-US/cbc1f1bb-9ff6-4fef-8ef2-fa3547747449/trouble-in-increasing-the-number-of-concurrent-client-connections-to-an-azure-web-role?forum=windowsazuremanagement

Regards,
Sunil.HP