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when I access any page of my ASP.NET MVC website first time, then this first request is slow. It needs about 4-5 seconds to load. But every following request to any page is fast.
When I wait some minutes or a hour then every first request is slow again. Every following request is fast.
I think that IIS 7 is compiling the code and keep it in memory. After some time it will delete it from memory so it needs to compile it again.
What can I do that every first request is as fast as every following request? (Without precompiling my source, if possible)
Thank you very much in advance!
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Typically an application will always take a little extra time to load as the application domain starts up. Things helping exacerbate this could be anything from poorly written code (IE: Application_Start) to certain libraries you may be using (ORMs for example). How many modules do you have loaded?
There can be numerous reasons why . NET applications can be slow. These include incorrect memory sizing, GC pauses, code-level errors, excessive logging of exceptions, high usage of synchronized blocks, IIS server bottlenecks, and so on.
If this is a production server then why not try adding a website monitor; such as up time robot. It basically asks for your websites headers and gets status codes like "200-ok", "404-not found", etc. every 5 minutes. This way your site is always spun up and does not impact log files/analytics as only headers are requested. I use this for my cloud sites as I find that they take 5 seconds to spin up which has an impact on site loading. With the monitor they are instant.
Oh and its free for up to 50 sites!
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