A DNN 6.2.6 site running on .NET 4.

The site consistently times out. I had been slow before when it was running under .net 3.5, then I upgraded and now it times out most oftern.

The performance settings are:
Page State Persistance: Page
Module Cache Provider: File
Cache setting: Moderate
Authenticated Cacheability: NoCache

The site is not pinging the server CPU.
Its in its own App Pool in IIS 6.0

It is rather large and has been upgraded from 5.6.3 as DNN upgraded.

Any suggestions on how to get the site moving would be apprecitated.

Thanks

Michael,

This is on a virtual 32 bit webserver, Windows2003, with 2 GB Ram. This is one of 30+ DNN sites running on both .net 3.5 and .net 4.
The SQL 2005 is on its own dedicated server. This is the only site in the App Pool and recycling it doesn't seem to make much difference.

Other sites, pre DNN 6.2.6 run much better.

The servers event log reports :
Event Type: Warning
Event Source: ASP.NET 4.0.30319.0
Event Category: Web Event
Event ID: 1309
Date:  1/27/2013
Time:  12:45:27 AM
User:  N/A
Computer: ABC-WEB-VM
Description:
Event code: 3001
Event message: The request has been aborted.
Event time: 1/27/2013 12:45:27 AM
Event time (UTC): 1/27/2013 6:45:27 AM
Event ID: 209da8780b0c423ea273e34af3e0b87d
Event sequence: 18
Event occurrence: 4
Event detail code: 0
 
Application information:
    Application domain: /LM/W3SVC/58456976/Root-1-130037418812788750
    Trust level: Full
    Application Virtual Path: /
    Application Path: C:\clients\MySite\
    Machine name: ABC-WEB-VM  
Process information:
    Process ID: 5976
    Process name: w3wp.exe
    Account name: NT AUTHORITY\NETWORK SERVICE  
Exception information:
    Exception type: HttpException
    Exception message: Request timed out.  
Request information:
    Request URL: http://mysitecom/Default.aspx
    Request path: /Default.aspx
    User host address: 64.171.22.99
    User: 
    Is authenticated: False
    Authentication Type: 
    Thread account name: NT AUTHORITY\NETWORK SERVICE
 
Thread information:
    Thread ID: 7
    Thread account name: NT AUTHORITY\NETWORK SERVICE
    Is impersonating: False
    Stack trace: 
 

The sites Event Log: I wasn't able to log into the site, but queried the eventlog table:

System.Threading.ThreadAbortException: Thread was being aborted.     at Microsoft.Win32.Win32Native.GetFileAttributesEx(String name, Int32 fileInfoLevel, WIN32_FILE_ATTRIBUTE_DATA& lpFileInformation)     at System.IO.File.FillAttributeInfo(String path, WIN32_FILE_ATTRIBUTE_DATA& data, Boolean tryagain, Boolean returnErrorOnNotFound)     at System.IO.File.InternalExists(String path)     at System.IO.File.Exists(String path)     at DotNetNuke.Web.UI.Utilities.ApplySkin(Control telerikControl, String fallBackEmbeddedSkinName, String controlName, String webControlSkinSubFolderName)

Michael,

I believe it's the need by DNN to use more resources and 2 GB is just not enough.

Looking at Task Manager its always application pools that are bring the CPU to 100%. I do recycle, not stop.start, when that occurs. I have the app pools set to recycle after 120 minutes or if they use 800 mb of memory. In most cases I have multiple websites in a single app pool.

The SQL server seems very responsive and there have been no errors in its event log.

Thanks

Stan