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HomeHomeUsing DNN Platf...Using DNN Platf...Performance and...Performance and...How to make DNN faster - Some findingsHow to make DNN faster - Some findings
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4/24/2013 6:17 AM
 

Hi,

The last days i searching to make DNN faster, because after a upgrade from DNN 6.1.5 to 6.2.7 and a upgrade of dnnckeditor to version 2.0.4.

Site administrators find it very slow on saving some things.

I can find out some intersting thinks :

If you edit a item (not in a popup, from the annoncment module for exemple) and save it.
And you analyse it with fidller, you see 3 http/html requests.

1) click edit item
 /ctl/Edit/mid/879/itemid/0
get
35 kb
return code : 200 ok

2) click save item
/ctl/Edit/mid/879/itemid/0
post
123 kb
return code 302 / redirect

3) show articles
get
31kb
return code 200 ok

 

What is abnormal to me is step 2.
Why is te content returned by a redirect so big ?
Fiddler show me there arre 2 html send in the content.
A html tag with the reirection (that normal) + a html tag with the page content (not normal and 5 times bigger then the other requests)

 Why ?

I check this on dotnetnuke.com and it hapend also.

 
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4/24/2013 9:43 AM
 
Hi Sacha,

could this be a Viewstate overload?

Best wishes
Michael

Michael Tobisch
DNN★MVP
dnn-Connect.org - The most vibrant community around the DNN-platform
 
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4/24/2013 10:47 AM
 

Thanks for your reply Michael.

I found that Response.Redirect( url , true) , witch is realy mutch used in DNN when click on a button, dont end the execution of the event because the Response.Redirect is inside a try{}catch{} block.

Response.Redirect( url , true) throws a exception for ending the threat and this not hapen because the try catch block.

In this case the execution of the event continue and you find 2 "responses" (2 html,body, ... tags) in the output.

This overloads the network and make everything slower. Normaly you dont see it bacause it's a redirect witch generate a other request from the browser to the server with the html witch is shown to the client.

http://stackoverflow.com/questions/37...

 
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4/25/2013 2:55 AM
 
Ah - this is very interesting indeed. I also always thought, that Response.Redirect(somewhere, true) will stop the execution - will be some work to review my codes.

Best wishes
Michael

Michael Tobisch
DNN★MVP
dnn-Connect.org - The most vibrant community around the DNN-platform
 
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