Hi all, 

I am building a DNN module and I noticed quite high performance degradation from DNN 06.00.02  to 06.01.05.

I measured the server time with Google Chrome at my local machine: http://code.google.com/intl/sl-SI/chr...

While the “sending” and “receiving” time are for both versions minimal (1ms), the “waiting” time DOUBLES in DNN v 6.1 (from 450 ms to 1000ms) . I suppose this is the server processing time.

I further investigated with the help of the Equatec profiler http://www.eqatec.com/Profiler/   and I found out, that the bottleneck is the method (stack) 

ClientDependency.Core.Controls.ClientDepandencyLoader.OnPreRender(…) ClientDependency.Core.Controls.ClientDepandencyLoader.RegisterClientDependencies(…) ClientDependency.Core.Controls.ClientDepandencyLoader.FindDependencies(…)

from the ClientDependency.Core.dll is even not called in DNN v 6.0.

The ClientDependency.Core.Controls.ClientDepandencyLoader.OnPreRender(…) takes 851 ms.
 
I was really surprises when I Googled about the ClientDependency.Core.dll and I found that this library is actually supposed to increase the performance : ) http://nuget.org/packages/ClientDepen...

Anyone knows there are any additional settings needed, or has any idea why is this method so slow or does have the same problem?

If everywhere works like this I would say this is a bug…??

Any suggestion would be appreciated.
I am running DNN on IIS 7.5

Thank You, 
Kristijan

Thank you Cathal, 

Your (quick) answer gave me an idea to profile another page (andmin), and here the same method took just 76 ms. 

So I encounter the problem only in my module. Some more info (for the testers): 

• The method is slow no matter of full page reload or post back call.
• The method performance changes depending on how many elements have a module sub page (pictures). From 300 ms up to 850ms.
• In the page I load some js. libraries dynamically and some other refistrations OnInit event …if this could cause any trouble ...? :

....

    RegisterClientScript("jqModal", "~/DesktopModules/ModuleName/Js/Libs/jqModal.js");
            RegisterClientScript("Header", "~/DesktopModules/ModuleName/Js/Header.js");
            RegisterClientScript("MasterDetails", "~/DesktopModules/ModuleName/Js/MasterDetails.js");
            RegisterClientScript("WsiTables", "~/DesktopModules/ModuleName/Js/WsiTables.js");

            if (DotNetNuke.Framework.AJAX.IsInstalled())
            {
                DotNetNuke.Framework.AJAX.RegisterScriptManager();
                RadScriptManager scriptManager = (RadScriptManager)ScriptManager.GetCurrent(this.Page);
                ServiceReference serviceReference = new ServiceReference();
                serviceReference.Path = @"~/DesktopModules/VipCrm/Wsi.asmx";
                scriptManager.Services.Add(serviceReference);


                serviceReference = new ServiceReference();
                serviceReference.Path = @"~/DesktopModules/VipCrm/WsiEntriesTbl.asmx";
                scriptManager.Services.Add(serviceReference);
            }

....

protected void RegisterClientScript(string key, string path)
        {
            if (Page.ClientScript.IsClientScriptBlockRegistered(key))
                return;
            Page.ClientScript.RegisterClientScriptInclude(key, ResolveUrl(path));
        }

Regards,

Kristijan

Before upgrading to 6.1.5 the RAM about 195Mb, now after up to 6.1.5: RAM alway > 290-300Mb, hic, My server is overload

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