GC performing full blocking Gen2 collections under SustainedLowLatency despite there is no LowMemory notification from OS

In this post I want to share my observation of a weird behavior in GC. Background and documented behavior One can switch GCLatencyMode in order to adjust the GC behavior. According to this doc SustainedLowLatency mode should ensure that full blocking collections are only made under low memory pressure: (…) The collector tries to perform only…

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Bug in ZipFile CreateFromDirectory – your archive can be irreparable corrupted

In this post I want to share my observation of a bug in ZipFile.CreateFromDirectory method that will yield resulting archives corrupted. Luckily this happens only for quite large source directories – and so you might not be affected at all. I’ll share my observations of limits that trigger this bug and also small code sample…

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Why are IntelliTrace Windows and Menus missing?

Visual Studio 2010 (and 2012) Ultimate is coming with a cool feature called IntelliTrace – if you don’t know about this feature I recommend to explore it more (e.g. here http://msdn.microsoft.com/en-us/library/dd264915(v=VS.100).aspx or even better directly in your VS Ultimate ;-)). However it might happen to you that your IntelliTrace Events or IntelliTrace Calls windows are…

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