[Mono-aspnet-list] Mono slow on initial request

Miljenko Cvjetko mcvjetko at holisticware.net
Wed Jun 20 07:16:09 UTC 2012


Hi

On 2012.06.20 09:04, Martijn van Egdom wrote:
> When using mono (mod-mono in apache) we have the strange behavior that 
> the first request after apache is started is extreemly slow (takes up 
> 10 seconds to load the page). All other requests after this one are 
> just fast ( less then half a seond).
2 reasons possible:

 1. native compilation (not precompilation)
    see:http://stackoverflow.com/questions/8151835/huge-delay-on-first-browser-request-to-mono-xsp-hosted-web-application
     1. to minimize this do AOT ahead of time compilation ( ngen like)
 2. Application_Start does a lot heavy lifting


few more (ASP.net related, but could apply here)
http://stackoverflow.com/questions/4755707/c-sharp-code-runs-quick-on-iis-but-slow-on-mono-how-to-improve-it/4771015#4771015

http://blogs.msdn.com/b/mcsuksoldev/archive/2011/01/19/common-performance-issues-on-asp-net-web-sites.aspx

regards

mel

> After some time being idle.. the same behaivor can be observed.
>
> Has somebody an idea whats happing here?
>
>
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