I have a fairly large and complex ASP.Net application which uses ASP.Net / C# 3.5 / SQL Server 2005 / LINQ to SQL. When a single user is using the system it runs very quickly, however once we start getting half a dozen users submitting at once it the CPU hits 100%. I have tuned the application as much as I know how to using ANTS Profiler and finding weak points in the code, however the profiler points out that over 2/3 of the CPU usage is in the Transition to manage code... Does anyone have any tips on how to combat this?
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mfawzymkh
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You need to do some performance analysis to figure out the root cause.
Try out this tool, it is a great one [ developed by an Architect in CLR team]
http://www.microsoft.com/download/en/details.aspx?id=28567#instructions
It should help you find the issue
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