We help IT Professionals succeed at work.
Get Started

Perfomance problem on Windows 2008 R2 64 bit, IIS 7, .NET 3.5

Last Modified: 2012-05-09
Hi !

When moving .NET application from WIndows 2008 32 bit, IIS 7
to   WIndows 2008 64 bit, IIS 7 monitoring significant performance degradation.
Testing the same hardware, same installed application, same business flow! Performance slower about 20-30% compared 32 bit machine.

Adding several application and environment details:
-Pure .NET 3.5 server side. C# and VB.NET, compiled as "Any CPU" (tested x64 compilation mode - same result)
-Windows 2008 R2 build 7600
-IIS 7 is running as "Classic" mode.
-Computer Dell, RAM 8GB, Intel Xeon CPU 3.20GHz 3.19 GHz (2 processors)

Please advise what can be configured/checked/tested to find out the problem.

Thanks in advance,
Watch Question
This problem has been solved!
Unlock 1 Answer and 3 Comments.
See Answer
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE