Performance about onlinesessionmodule HOT 2 OPEN

I have only used this module mostly for testing environments. But I do not think it should have important performance issues

from onlinesessionmodule.

Asynchronous HTTP Modules and HTTP Handlers in Asp.Net 4.5 , can be asynchronous HTTP Handler - Module in ASP.NET 4.5 ?

Real world async httpHandler

ErrorLogDownloadModule is frankly the module that would benefit the most from being asynchronous as it can take a while to run as it serves to download. To that extent, it is already implemented in an asynchronous manner by virtue of implementing IHttpAsyncHandler . It doesn't used tasks/TPL but it's asynchronous alright.
https://github.com/elmah/Elmah/blob/1x/src/ErrorLogDownloadHandler.cs#L39

However, that alone does not guarantee asynchronous execution semantics. The ErrorLog implementation also needs to support (non-blocking) asynchronous retrieval and the only one that does is SqlErrorLog .
https://github.com/elmah/Elmah/blob/1x/src/SqlErrorLog.cs

It's not about performance per se. Instead, it's about returning threads to the pool while waiting for an I/O so that those thread are more available to service other requests meanwhile. It will affect your scalability.

from onlinesessionmodule.