.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
Gaurav Pal
Post New Web Links

Speed up, cache, etc...

Posted By:      Posted Date: December 04, 2010    Points: 0   Category :ASP.Net


I'm not so experienced with the scope, sharing, of classes & variabeles on a webserver and have following questions

When I make a class in my webApp that is singleton design pattern wich holds lists I wish to cache Zipcodes, streets, etc... and a user started the webapp is this class then already initiated & ready for use for other users surfing from somwhere else ? I mean the first visitor initiate the class & others are using the instance ?

What happens with the instance of that class is first user logs off, if all users log off,...

The problem is I have a WepApp up and running now and would like to tune performance without the need to redesign the whole structure.

Thanks for helping out


View Complete Post

More Related Resource Links

Speed SQL: Tuning Your Database Calls with Tier Interaction Profiling


Tier interaction profiling (TIP) is a feature of the Visual Studio profiling tools that measures the duration of synchronous calls to ADO.NET-compliant data stores. We'll show you how TIP works and provide some best practices for using TIP to diagnose performance problems in your apps.

Mark Friedman

MSDN Magazine August 2010

AppFabric Cache: Real-World Usage and Integration


Windows Server AppFabric provides a distributed cache for both web and desktop applications. Well show you how to integrate AppFabric caching into your apps, along with some hints for taking advantage of new cache features in the .NET Framework 4.

Andrea Colaci

MSDN Magazine June 2010

Security Briefs: Active Directory Cache Dependencies


If you're not taking advantage of Active Directory, you should be. Learn the benefits from Keith Brown.

Keith Brown

MSDN Magazine July 2007

Built For Speed: Develop Turbocharged Apps For Windows Compute Cluster Server


This article explores the services provided by Compute Cluster Server 2003 and the tools provided by Visual Studio 2005 that will help you develop High-Perfomance Computing applications.

Rich Ciapala

MSDN Magazine April 2006

Speed: NGen Revs Up Your Performance with Powerful New Features


In the .NET Framework 2.0, NGen has been greatly improved and offers a number of compelling new features to make it easier and faster to deploy high-performance managed applications. This article introduces some of these new features and explains how and when you should use NGen to improve the performance of your apps.

Reid Wilkes

MSDN Magazine April 2005

ASP.NET 2.0: Speed Up Your Site with the Improved View State in ASP.NET 2.0


View state is a wonderful thing. It allows the ASP.NET developer to maintain state for server-side controls that are not form elements.Used judiciously, it can improve the user experience. But in the wrong hands, it can cause your pages to grind to a halt. The release of ASP.NET 2.0 will include a variety of improvements to view state that will make it easier to use and less likely to slow performance.

Fritz Onion

MSDN Magazine October 2004

Cutting Edge: Implement Custom Cache Dependencies in ASP.NET 1.x


One of the most compelling improvements that ASP. NET brought to ASP programming was the Cache object. The Cache has some similarities to the Application object and is a container of global data (as opposed to session-specific data) that features a fair number of innovative characteristics.

Dino Esposito

MSDN Magazine July 2004

Wicked Code: Supporting Database Cache Dependencies in ASP.NET


Developers love the ASP. NET application cache. One reason they love it is that ASP. NET lets them create dependencies between items placed in the cache and files in the file system. If a file targeted by a dependency changes, ASP.

Jeff Prosise

MSDN Magazine April 2003

Speed Up Visual Studio 2008

The article Speed Up Visual Studio 2008 was added by tmorton on Monday, August 09, 2010.

1- Disable toolbox populate from the mainmenu open Tools->Options Select the general tab under Windows Forms Designer Set AutoToolBoxPopulate to false. Although the setting is under Windows Forms Designer, it is just as effective for ASP.Net developers

How to Cache System.Collection.Generic.List object


I need to cache System.Collection.Generic.List object with expiration time

var Root = from feed in feedhotel.Descendants(ota + "HotelContent")
                           where (feed.Attribute("HotelCode") != null)
                           select new xmlhotel()




return Root.ToList();

Is it possible to cache Root.ToList() for some time....

How to clear cache


We have an ASP.NET-based print tool that will create a printable version of a webpage (as a PNG, I believe). The URL is something like:


which is displaying an older version of the webpage.

The URL to just the webpage displays the current version:


Observations so far:

  • I've deleted temporary Internet files on clients, which had no effect.
  • The behaviour is the same on different clients, which suggests a server issue.
  • I've requested that the temporary ASP.NET files are deleted from:
    C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\Temporary ASP.NET Files\mysite_tools_printfromweb
    (It's a customer's web server. I've checked the version of ASP.NET associated with the tool.)

So, my questions are:

Am I right in thinking this is probably a caching issue, and are there any other locations and/or settings I should be looking at?

With thanks.

Problem insert POCO to Velocity Cache



I want to put POCO object to Velocity cache. How can I serializable ICollection to Velocity cache, or exclude ICollection from serialization?

I got this exception

Type 'System.Collections.Generic.ICollection`1[Model.Collection]' cannot be serialized. Consider marking it with the DataContractAttribute attribute, and marking all of its members you want serialized with the DataMemberAttribute attribute.  If the type is a collection, consider marking it with the CollectionDataContractAttribute.  See the Microsoft .NET Framework documentation for other supported types.



output cache to be used only when parameter has changed + old question of user control not answered



i have 2 questions about output cache:

1.is it just me , or does it seems that it is used only after the second time that the user reaches the webpage? if so, why, and how can i tweak it to my needs? my guess is that it wouldn't be logical to cache every time a user reach a webpage, but only when it happens enough times.

2.i know that i can use "varybyparam" for using the output cache when the parameter doesn't change , but it seems that it would use the output cache even if there is no parameter , or if the specified paramter is not there. is there a way to overcome this?

3.an old question that somehow marked as "answered" , yet i didn't solve : suppose i created a user control and i gave it values through the CTOR via the aspx file . is it possible to show the values from within the split/design mode? remember that i've talking about ASP.NET and not simply C# winforms . i write this because this question was on :


and the answer that i got was for C# and winforms . i've tried to do the same for ASP.NET , but i've failed.

can anyone please help me?

cache condition always return flase


Hi i got a function that first insert cache object in dataset and then check if its empty then query the database otherwise just get record from the dataset of cache object.

Now the problem is, the condition

If DSEktronID Is Nothing Then '

always return false even when i run the application first time? Any ideas?

   Public Function GetEktronID(ByVal UrlAlias As String, ByVal source As Object) As Integer

Dim application As HttpApplication = DirectCast(source, HttpApplication)
Dim context As HttpContext = application.Context
Dim DSEktronID As New DataSet()
Dim da As SqlDataAdapter
Dim dt As DataTable
Dim EktronId As Integer

DSEktronID = CType(context.Cache("firmEktron"), DataSet)

If DSEktronID Is Nothing Then ' If empty
context.Response.Write("inside if")
Dim conn As SqlConnection
conn = New SqlConnection(ConfigurationManager.ConnectionStrings("GAConnectionStringDev").ConnectionString)

da = New SqlDataAdapter("select content_id, Alias FROM [tbl_MobileTodayLookUP]", conn)

DSEktronID = New DataSet()
da.Fill(DSEktronID, "Ekt

Clear Output Cache


I have set the output cache for 5 pages(5 minutes)

I want to clear  all these pages from cache on some nutton click 

ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend