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Notes from a dark corner

Debugging ASP.NET, the CLR and anything that uses clock cycles.

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More on the mysterious case of accessing .NET Performance Counters using WMI
Back in February I blogged about a strange case we had seen where a customer was having trouble seeing certain ASP.NET performance counters when using WMI to access them . If you start Perfmon with the /WMI switch then Perfmon uses WMI rather than the Read More...
Performance Toolkit Presentation
I previously mentioned the Windows Performance Toolkit. At the WinHEC conference this year a presentation was given about the xPerf tool and plans for the future. You can find it here: http://download.microsoft.com/download/5/E/6/5E66B27B-988B-4F50-AF3A-C2FF1E62180F/COR-T594_WH08.pptx Read More...
Great blog for file system related stuff
I don't often get involved with storage issues unless it is affecting one of my customer's websites in some way (usually performance, though could be a hang). During an issue I am currently working on, I came across the FileCab blog of the Windows Storage Read More...
Link: Useful article on ASP.NET Performance...
Over on the "ACE Team" blog there's a useful blog post with some performance tips for ASP.NET sites . The point about batch compilation and Debug="true" was certainly correct for version 1.1 but I think in ASP.NET 2.0 they are decoupled Read More...
Interesting tool for monitoring of client side of web applications
Microsoft Research have released a very interesting looking prototype of a tool for investigating the performance of the client side of web applications that use JavaScript on the client. You can download it here and there is a usage walkthrough here Read More...
Windows Performance Tools Kit
If you like delving into the depths of how a Windows system is performing (or not performing) then a recently released toolset may be of interest to you. Released initially as part of the Windows SDK for Windows Server 2008 and .NET Framework 3.5 but Read More...
Troubleshooting .NET 2.0 performance counters
Sadly, from time to time, the .NET 2.0 performance counters can go a bit wrong. This is a handy article to remember when you need to troubleshoot them. Doug Read More...
Vista Performance article
Came across this interesting article about measuring performance on Windows Vista . Contains various nuggets of information about what goes on under the covers. Doug Read More...
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