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HomeHomeUsing DNN Platf...Using DNN Platf...Administration ...Administration ...Slow inital page load - DNN 4.9.1 and Mosso Slow inital page load - DNN 4.9.1 and Mosso
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2/12/2009 3:44 PM
 

I am using DNN 4.9.1 for a new site being hosted by Mosso (The Cloud). Sometimes, I get incredibly slow latency / response times (IE or Firefox) on the inital load of the home page. The initial load can take anything from 15-80 seconds. Other Mosso or DNN sites I have tried can load as quickly as 3 seconds (I don't know of any sites with both).

I'm using Nukeville Minimalist skin. Graphics file sizes are small. In total though, there are 77 elements being loaded on the home page. This can be verified by using the HTTP Debugging tool Fiddler2. The load times are very slow at the following stages e.g.

/ - e.g. 15 seconds or longer

/AC_RunActiveContent.js - 5 seconds

/spmenu.js - 6 seconds

/Setting-skin.xml - 5 seconds

/10.css - 7 seconds

etc. etc..

Once loaded, jumping between pages is fast - 2-4 seconds - to be expected I suppose with caching.

Does anyone have experience of latency issues with 4.9.1 and Mosso or both of these together? Might this just be down to DNN configuration? Mosso issues? Could someone point in the direction of where to look next?

Any help would be really appreciated. Thanks.

 
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2/18/2009 10:00 AM
 

Hey richh999,

Is the site slow *every* time you go to the home page or just the first time?

What it sounds like to me is that you're experiencing a slow start up time, which is normal for an ASP.NET application. If the application is idle for a certain period of time, it will be unloaded from memory and the next time you hit the site, the entire application will be loaded back into memory - hence the slow initial page load and faster subsequent page loads.

The best solution for this is to have enough traffic to keep your site in memory all the time. The second best solution is to use a monitoring service to hit your website on a scheduled basis. Another thing you could do is fine-tune your server/dnn install for performance.

pingdom and mon.itor.us are two website uptime monitoring services that I've heard recommended. Mitchel Sellers has a few performance tuning articles on his website.

Hope that helps,

Ian


Software Engineer
Co-Founder, dnnGallery
Stack Overflow: Ian Robinson
Twitter: @irobinson
Linked In: Ian Robinson
 
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