Kevin Gosse • 1/3/2019

Optimizing the WinDbg DML parser

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The article details an investigation into severe performance issues in a custom WinDbg command window. Profiling revealed the bottleneck was WinDbg's internal Debugger Markup Language (DML) parser, specifically the O(n) cost of accessing characters in a large StringBuilder, contrary to the expected O(1) behavior. It explores the root cause and implications for developers working with debugger output.

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#profiling #performance optimization #Windbg
Optimizing the WinDbg DML parser

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