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Investigating Locks

Consider the following scenario: You have an ASP.NET application which intermittently responds sluggishly. As the problem occurs memory usage is about average, as is CPU usage, but still certain pages respond slower and slower. The machine acts just as Read More...
Posted Friday, October 09, 2009 3:49 PM by JohanS | 2 Comments

Why doesn’t the GC kick in when the worker process is inactive?

I got the following question in my Getting started with windbg – post and I thought it might be worth posting the replies in a separate article: Hi Johan, about those threads with an ID of XXXX, should they go away after certain amount of idle time like Read More...
Posted Tuesday, May 13, 2008 3:39 PM by JohanS | 1 Comments

Using WinDbg - Hunting Exceptions

Prerequisites This post will require some basic knowledge of windbg and the sos extension. For this I recommend looking at the following posts: Getting started with WinDbg - Part I Getting started with WinDbg - Part II For more information on Exceptions Read More...
Posted Thursday, January 31, 2008 5:39 PM by JohanS | 7 Comments

Using WinDbg - Advanced commands

Did you know you can build your own advanced commands using for each, if, etc? The complete list of control tokens are: .if .else .elseif .foreach .for .while .do .break .continue .catch .leave .printf .block Using these command tokes you can send quite Read More...
Posted Wednesday, January 23, 2008 3:46 PM by JohanS | 8 Comments

Getting started with windbg - part II

This is a continuation of my previous post with the imaginative name Getting started with windbg - part I . I'll be assuming that you've read it, so if you haven't I suggest you check it out first. We're still working with the same sample dump, so I'll Read More...
Posted Monday, November 26, 2007 2:49 PM by JohanS | 12 Comments

Getting started with windbg - part I

Okay, I've previously written some random posts about how to set up windbg and how to troubleshoot OutOfMemoryExceptions . I thought I'd take a few steps back and review some of the basics in order to help you get started on using this fantastic tool. Read More...
Posted Tuesday, November 13, 2007 3:20 PM by JohanS | 42 Comments

How to install Windbg and get your first memory dump

Install Windbg Windbg is the tool for the ASP.NET support engineer. It is free and it's available at www.microsoft.com/whdc/devtools/debugging/default.mspx . The learning curve is steep to say the least, but if you're interested in finding out what is Read More...
Posted Thursday, January 11, 2007 5:42 PM by JohanS | 11 Comments
 
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