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Intel® VTune™ Performance Analyzer for Windows*
Microsoft* Visual Studio* slow after installing VTune™ analyzer

Symptom(s):

After installing the VTune™ analyzer, you may notice a slow down in the start-up of Microsoft* Visual Studio* 2005 or 2008. Some users have reported waiting up to 30 minutes for Visual Studio to start.

Cause:

The VTune analyzer supports profiling of .NET* applications and code by setting environment variables to enable profiling support within the CLR (Common Language Runtime). In some cases, these variables are left set after the VTune analyzer collects the profiling data. Then, when Visual Studio is started, because it uses the .NET framework, its code generates profiling information within the CLR, even though nothing is collecting the data. This profiling causes the slow down.

Solution:

Please check your system for the following environment variables:

Cor_Enable_Profiling=1
BISTRO_COLLECTORS_DO_CALLGRAPH=1
COR_PROFILER={91663010-0D1E-4ABD-8F0C-0B4B84CCA809}

If any are found, please remove them and restart Visual Studio.

Operating System:
Windows* XP Professional x64 Edition, Windows Vista* 64, Windows Vista* 32, Windows* XP 64-Bit Edition, Windows* XP Professional, Windows* XP Media Center Edition, Windows* XP 64-Bit Edition Version 2003

This applies to:
Intel® VTune™ Performance Analyzer for Windows*

Solution ID: CS-028964
Date Created: 23-Mar-2008
Last Modified: 12-Jun-2008
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