If broken it is, fix it you should

Using the powers of the debugger to solve the problems of the world - and a bag of chips    by Tess Ferrandez, ASP.NET Escalation Engineer (Microsoft)

April, 2010

  • If broken it is, fix it you should

    New Visual Studio 2010 and .NET 4 debugging content

    It’s been a pretty busy few weeks at work coupled with some vacation so I’ve been lagging a bit with the blogging, so sorry for bombarding the blog with new posts now:) As you all know, Visual Studio 2010 just released and there is a lot of new content out there and I thought I’d mention a few in the debugging/troubleshooting space. ScottGu wrote a post on the VS 2010 debugger improvements as part of his VS 2010 and .NET 4 post series where he talks about news with Data Tips and Breakpoints. The...
  • If broken it is, fix it you should

    Debugging a classic ReaderWriterLock deadlock with SOSex.dll

    I was helping out on an issue the other day where the process would stall if they added enough users in their load tests.  Btw, serious kudos to them for making load tests, so much nicer to work with a problem in test rather than when it is getting critical on a production machine. We gathered some memory dumps with debug diag of the asp.net process (w3wp.exe) and found that most of the threads were waiting in this type of callstack:  NOTE:  I have changed a lot of function names and...
  • If broken it is, fix it you should

    IIS and PAE

    I recently got a question by one of my customers about PAE and IIS that I thought I’d share the answer to. Their environment looked something like this: 32bit OS (Windows 2003) IIS 6 with multiple application pools, where each app pool hosts a number of applications ~20 GB RAM They were having problems with out of memory exceptions and also with paging under high load. They knew a lot about their application and memory usage in general, so they knew what they were using the memory...
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