Application Start Delay

[Jeremy S]

I have written an ASP.NET application that performs very well. I make heavy
use of the Cache and otherwise minimize the number of round trips to to the
db. I couldn't be happier with the performance - except when the application
first starts. When hitting my Web server over the Internet there is a delay
waiting for the first page. I suspect that the App Pool is starting up as
well as my particular ASP.NET Web application. I should note that while I
have some code that runs during Application_Start, it is minimal does not
explain most of the delay. I have noticed this delay on other ASP.NET Web
sites as well.

What can I do to minimize this delay? It appears that the app pool is set to
timeout after 20 minutes. I suspect that is the issue - but is the only
solution to increase the idle timeout on the App Pool? If so, is it
perfectly acceptable to set the App Pool's idle timeout value to something
like 24 hours? Is there anything else I can look at (beyond my
Application_Start code) that might explain this initial delay?

Thanks!

 

[Marina]

The delay is because of asp.net restarting. Other then changing how often it
might need to restart in machine.config, there is not much you can do.

And yes, this is very annoying during development. After every recompile, it
takes forever for it to start up again (lot's of DLLs that are part of the
app).

 

[Tom.PesterDELETETHISSS]

The shutting down of the worker processes after 20 mins is probably the cause.
I had this too and disabled and it ran fine.

Let me know if you have any more questions..

Cheers,
Tom Pester

 

[Jeremy S]

What do you mean you disabled it? Did you simply extend the idle timeout
value - or did you do something else?

 

[Tom.PesterDELETETHISSS]

I thought I disabled it but its a long time ago.

Cheers,
Tom Pester