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Troubleshooting performance counter problems with perfmon and a debugger

Performance counters are a wonderful tool when it comes to quickly assessing system health and performance of Windows subsystems. In addition to learning much about the operation of Microsoft products, exposing performance counters from your own code Read More......( read more ) Read More...

How To View what ASP.NET Requests are doing at runtime on IIS 6.0

This is just a quick blog to mention a forgotten tool. The managed stack explorer can be run on an IIS 6.0 Server running ASP.NET 2.0 to investigate the managed call stacks. Looking at the call stacks when an ASP.NET application is not responding may help identify what the requests are doing. Setting up the tool Download the Managed Stack Explorer from here: http://www.microsoft.com/downloads/details.aspx?FamilyID=80cf81f7-d710-47e3-8b95-5a6555a230c2&displaylang=en Run the MSI and install to...( read more ) Read More...

What do you need to troubleshoot Azure?

Looking to the future with cloud computing, it is going to become increasingly important to have good information about what is happening with your site in order to properly maintain it. Keeping development type of issues aside, what types of things do Read More......( read more ) Read More...

Strange callstacks

How many times have you been troubleshooting a dump or application, you look at the callstack and you see something that just doesn’t quite look right.  Chances are the problem is that you don’t have correct symbols. For example, if you see something Read More......( read more ) Read More...

ASP.NET Tip: How to avoid creating a GC Hole

There are only a few things that can make a .NET process crash.  The most common one is an Unhandled Exception getting raised.  Another way that is can happen is by creating a GC Hole. What is a GC Hole So first a little background on what I Read More......( read more ) Read More...

Who uses SOSEX and what for?

Another thing I am curious to know is if anyone is using SOSEX and what advantages it gives you for debugging.  I have talked to the author of it and I think it has a lot of useful commands, just wanted to get everyone’s take on it. Let me know any Read More......( read more ) Read More...

High Memory part 6 – Fragmentation revisited

I have talked about a bunch of commands used to troubleshoot a managed memory problem in the past and given some situations of using them like: High memory, CPU, or other performance problems with .NET High Memory continued - Datatables High Memory part Read More......( read more ) Read More...

Debugger Extension update

The debugger extension that we were working on getting out with the debugger package has hit some roadblocks and it looks like it isn't going to be shipping with the debugger anytime soon. We are looking to see if we can find an alternative method to Read More......( read more ) Read More...

How do you test the performance of your web site?

I wanted to get a feel for what tools people are using to test the performance of their website.  My questions are: Do you check page-load times?  Do you dig in to see which files are taking the time How do you track down a page that uses a Read More......( read more ) Read More...

SOS Tip: Using help

This is just a quick little note to remind everyone that the !help command in sos can be very helpful.  Not only does it list all of the possible commands, but if you run it and pass it the name of a command, it will print out a bunch of really useful Read More......( read more ) Read More...