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CLR Inside Out: Investigating Memory Issues

Posted By:      Posted Date: August 21, 2010    Points: 0   Category :ASP.Net

Memory issues can manifest in a wide variety of ways. This column shows you how to collect the data you need to determine what types of mem¬ory issues you are experiencing.

Claudio Caldato and Maoni Stephens

MSDN Magazine November 2006

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More Related Resource Links

CLR Inside Out: Memory Usage Auditing For .NET Applications


Memory usage can have a direct impact on how fast an application executes and thus is important to optimize. In this article we discuss the basics of memory optimization for .NET programs.

Subramanian Ramaswamy and Vance Morrison

MSDN Magazine June 2009

Regarding performance issues by using memory stream



i created one project.

many persons will use my project at a time. in that project if any person got error,that error has written to one file by creating object to memory stream.

if all persons got error then that number of objects will be created at a time and all objects will write errors to same file at a time. so here i think there are 25 hits per second.

is there any problems and performance issues by using memory stream ? please help me.

Modifing ".ajax__tab_xp-theme" for "ajaxToolkit:TabContainer" inside asp:wizard known issues ???


This Post comes  from: http://forums.asp.net/p/1609311/4116646.aspx#4116646 


I'm using ASP:Wizard with two pages and a TabContainer inside each wizard step. I need to change "ajax__tab_body" default background-color:#ffffff to transparent color.

I have the following scenario:

- AJAX copied and added to project from "D:\AJAX Control Toolkit\AjaxControlToolkit\.."

- My stylesheet.css which contain the ".ajax__tab_xp-theme" modified theme as class: ".MyTabStyle" located in "~\css\stylesheet.css"

- A copy of AJAX Tab images in "~\images\tab.gif" "tab-hover.gif", "tab-active.gif" ... 

1. What happens between first and second load of wizard cause I can see it takes different syles css?

2. Most important: When I load the wizard the first time everything is OK, if I go to second page of Wizard It comes the rendering issue:

  - The right image of each tab "tab-right.gif" appears separated from the tab see here: Why ?

This is the class I modified:

SQL Server 2008 R2 on Windows Server 2008 R2 Memory Usage issues and not giving memory back


Okay so i have a physical server i am trying to replace with a virtual server. Its doing a large load process every night, about 190GB on one disk.

The VM is:

On vSphere 4.1 ESXi

O/S is Windows Server 2008 R2 Enterprise

SQL version is SQL Server 2008 R2 Enterprise.

4 vCpus

Now 20GB of memory

Disks assigned to this virtual are all seperate LUNs except for the O/S which is on a shared LUN which is not busy. So 1 LUN/Datastore per 'disk drive on this SQL virtual. Data/Log/TempDB/Backup are on their own LUNs.

All the recommended exclusions are in place for McAfee on a SQL Server.

ESXi 4.1 Enterprise host is not overcommitted. Has 4 x 6core 2.6Ghz AMD processors. BL685c G6 and 128GB of memory. Almost nothing else is running at the time i am testing this load and host is not overcommited or stressed or anywhere near it.

SQLServer process shows 127,236K Working Set and 130,040K Peak working set and memory Private working set 88,828k and Commit Size of 302,792k.

It seems when i check the memory usage in task manager it doesn't show much. In Windows 2003 X64 in would show the GB being used, like 8GB right in task manager. But i don't see that in Windows 2008 R2 task manager. I downloaded SysInternals and it shows the memory on the Windows 2008 r2 box as 15Gb of AWE memory. How can this be? The case is th

Rendering Issues when embedding Notepad inside a WPF Window


My end goal is not to embed Notepad inside of a WPF window. I am using Notepad to demonstrate this issue because I am having the same problems with Notepad that I do when I attempt to embed a Labview Virtual Instrument into a WPF window.

The primary problem I am having is that there are rendering problems with the embedded Notepad window whenever I move or maximize the window. I am looking for advice on how I can make it so that the embedded window will not have these rendering issues.

My second problem is that I would like the embedded window to take up the full size of the form whenever the form is resized. If this is not possible, I'll just prevent resizing of the WPF window.

You can download my VS2010 C# 4.0 WPF solution from here: http://rapidshare.com/files/426808705/Win32Fun.zip

Investigating Issues with InfoPath 2010 SharePoint Applications

Learn to use debugging techniques and diagnostic tools to quickly investigate issues with SharePoint applications that use InfoPath 2010.

2008 SSIS and NUMA Memory issues and BLOB Data Types


We're running SSIS 2008, moving data from an Oracle 10g database to a SQL 2008 database.  The SSIS is running on the same machine as the SQL Destination server.  The server has 8 gigs and is windows 2003 sp2

The issue we're having is when our package pulls a blob data type from oracle it will just quit with no errors at about 1.4 million records.   We know there are 6 millions records in the dataset. 

A friend of mine said it was a NUMA Memory issue that it is running out at some point and SSIS thinks the incoming data is finished.  Unfortunately, she said there was no answer. 

I was wondering if someone else had a simliar situation moving blobs from Oracle?


Accessing the different controls inside a GridView control

how we can access a particular control which resides inside a GridView control. In this article I will show you how you can access different controls inside a GridView control. We will see how we can access a TextBox control, a DropDownList control and a ListBox control. If you are working with ASP.NET 1.X then you might want to check out my article Accessing Different Controls Inside a DataGrid.

How To Add calendar control inside a GridView

This article show hot to add calendar control inside a GridView with code in c#

Using ATLAS PopUp Control with Calendar inside the GridView Control

In this video tutorial Mohammad demonstrates how you can access the Calendar control which is displayed using the ATLAS PopUp control inside the GridView control.

RadioButton inside GridView, How to get it work as normal

Did you tried before to drag a RadioButton control inside a Gridivew templatefield, and then you attempt to select these RadioButtons , you will notice that the behavior of RadioButton control will be changed and it will work just like the behavior of checkbox control! the user will be able to select more than one radiobutton in the grid!

Maintain HTML Radio Button Selection Inside GridView After Postback

Long time ago I wrote an article about getting the value of the selected RadioButtons inside the GridView control. The code did not addresssed the postback issue which means that the selected radio button was cleared after the postback occurs.

How to detect and avoid memory and resources leaks in .NET application

Despite what a lot of people believe, it's easy to introduce memory and resources leaks in .NET applications. The Garbage Collector, or GC for close friends, is not a magician who would completely relieve you from taking care of your memory and resources consumption.

I'll explain in this article why memory leaks exist in .NET and how to avoid them. Don't worry, I won't focus here on the inner workings of the garbage collector and other advanced characteristics of memory and resources management in .NET.

LinkButton inside Repeater



I have Repeater, which consists of LinkButon and Literal. LinkButon and Literal are whole thing by implication. I want get value from Literal, when user click on corresponding LinkButton.


Textbox in ItemTemplate inside Gridview, unable to get the value


Hi. I have a itemtemplate inside a gridview.

<asp:TemplateField HeaderText="Enter OTP">
                            <asp:Label ID="Label2" runat="server"
                                style="font-family: Arial, Helvetica, sans-serif; font-size: x-small"
                                Text="PIN Num:"></asp:Label>
                            &nbsp;<asp:TextBox ID="txtPIN" runat="server" Height="21px" Width="100px"></asp:TextBox>

file upload in chunks or not buffering in memory before writing to disk?


What are the options for handling file uploads to reduce the memory footprint?  Is there a way to upload in chunks?  Is there a way to stream upload directly to disk instead of loading entire file in server memory?


Embed Youtube inside Ajax Html Editor- problem



When inserting a simple embed of youtube inside the ajax editor, on firefox and chrome problems occur. On the other hand on internet explorer 8 everything works fine. I found this solution http://www.nopcommerce.com/boards/t/4228/bug-in-ajax-html-editor.aspx . 

My question is where do I find the DesignPanel.pre.js ?


Roderick Vella

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