Welcome to MSDN Blogs Sign in | Join | Help

Browse by Tags

Using VSTS Test and Profilers to troubleshoot a High CPU in GC issue

Posted Tuesday, October 07, 2008 4:23 PM by Tess
Following my post about how to troubleshoot a low CPU performance issue with VSTS Test, I will now do the same for lab 4 where we have high CPU in GC. The scenario is pretty similar in that we have a page ( http://localhost/BuggyBits/AllProducts.aspx Read More...
2 Comments

Using VSTS Test and Profilers to troubleshoot performance issues (low cpu hang)

Posted Wednesday, October 01, 2008 5:01 PM by Tess
I’ve been wanting to dig into the Test features in Visual Studio Team System for a while to “debug” issues during the test phase.  In my previous post I linked to a Swedish screen cast by Mikael Deurell, but for those of you who don’t know Swedish Read More...
5 Comments

Swedish Screen casts of debugging labs and visual studio test

Posted Tuesday, September 30, 2008 1:12 PM by Tess
I know that perhaps not that many of you know Swedish, but for those of you who do, you might want to check out Michael Deurell’s nice screen casts about how to use visual studio test system to troubleshoot the issues in the buggybits labs along with Read More...
3 Comments

Making it easier to debug .net dumps in windbg using .cmdtree

Posted Thursday, September 18, 2008 11:20 AM by Tess
John Robbins beat me to the punch and wrote an excellent post about using .cmdtree in windbg to ease some .net debugging pain in windbg. The windbg .cmdtree command allows you to create a popup window in windbg with commands that execute when you click Read More...
9 Comments

Q&A Reader emails about .NET memory leaks and random questions

Posted Tuesday, September 16, 2008 1:36 PM by Tess
Here are of some of the reader emails I got this week and my answers to them... How do I troubleshoot this memory leak Debugging techniques for capturing stacks of OOMS Do you have a list of Debugging 101 links? Debugging managed code in IE Getting to Read More...
9 Comments

ASP.NET Memory Issues - High Memory Usage with AjaxPro (fixed in current version)

Posted Friday, September 12, 2008 3:21 PM by Tess
I was helping a colleague out with an OOM (OutOfMemory) situation he was dealing with. Problem description: Their applications memory usage would grow over time until they finally ended up with an out of memory exception. First debug: They had gotten Read More...
4 Comments

Quick Debugging Tip: Disable apppool recyling while getting crash dumps

Posted Friday, September 12, 2008 10:40 AM by Tess
I have probably mentioned this before, but I think it is worth mentioning again because of the frequency of this issue. When debugging a crash, we usually get customers to use a crash rule in debug diag or to use adplus -crash to get memory dumps at the Read More...
3 Comments

ASP.NET Memory - Identifying pages with high Viewstate

Posted Tuesday, September 09, 2008 2:56 PM by Tess
From time to time we get issues with high memory and performance issues due to massive viewstate. I have talked about it before here , but I thought I'd show some techniques for finding out which pages have high viewstate. If you look at a memroy dump Read More...
8 Comments

OutOfMemoryExceptions while remoting very large datasets

Posted Tuesday, September 02, 2008 2:41 PM by Tess
When you have to pass an object back and forth between processes or application domains you have to serialize it into some type of stream that can be understood by both the client and the server.   The more complex and big the object gets the Read More...
8 Comments

Creating a UI Module For IIS7 to watch Current Requests

Posted Thursday, August 28, 2008 4:09 PM by Tess
A while back I posted about Failed Request Tracing in IIS 7 and I mentioned the command appcmd list requests which lists the requests that are currently executing in the process... I was playing around a bit with UI Modules in IIS7, you know the ones Read More...
6 Comments
Attachment(s): CurrentRequestsUI.zip

Debugging Puzzler - WinForms crash - Can you figure out what caused it?

Posted Wednesday, August 27, 2008 1:48 PM by Tess
Earlier this week I was doing a presentation and since the company I presented for had mostly winforms developers I wanted to convert all my ASP.NET debugging demos to winforms equivalents for the presentation. As I was converting my first demo (a performance Read More...
16 Comments
Attachment(s): DebuggingPuzzler1.exe

Debugging Silverlight applications with windbg and sos.dll

Posted Thursday, August 21, 2008 11:51 AM by Tess
If you have hangs, performance, memory issues, exceptions or crashes in Silverlight applications you can debug them using windbg and sos just like you would if the issues occurred in other .net applications.  The difference is that Silverlight in Read More...
8 Comments

Questions on application domains, application pools and unhandled exceptions

Posted Tuesday, August 19, 2008 9:43 AM by Tess
I got an email with some questions around application domains, application pools and unhandled exceptions from a developer that was frequently seeing his website crash, and also had some related issues with session loss in his application. I have written Read More...
10 Comments
Filed under: ,

Troubleshooting a performance issue with Failed Request Tracing and appcmd in IIS7

Posted Tuesday, August 19, 2008 8:26 AM by Tess
I know I'm a little late in the game, but I decided that after vacation it was finally time for me to install Windows 2008 on my Vista box and play around with some of the IIS 7 features like Failed Request Tracing (known as FRT or FREB) and the appcmd Read More...
7 Comments

Vacation

Posted Friday, July 25, 2008 9:06 PM by Tess
Just wanted to post a quick note to apologize for not responding to any comments over the last 4 weeks as I have been on an extended vacation with very limited internet access. Next week I will be attending an event so the updating will probably be slow Read More...
4 Comments
More Posts Next page »
 
Page view tracker