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Joel on Software

VERY slow debug output w/.Net

I have a .Net component which uses a COM object via interop.  The COM object outputs debug trace info using ATLTRACE (which eventually resolves down to OutputDebugString, I think).  This works OK everywhere but under VS.Net debugger (e.g., performance is OK using DbgView from sysinternals.com ).

Running under VS.Net debugger, however, the app never seems to get a paint message, and is totally unresponsive.  It's not cpu-starved, as utlization if very low (< 5%).

BTW, I'm using VS.Net 2003.

Thanks in advance for any advice.

Bill T.
Friday, June 25, 2004

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