WPF runs super fast on one computer, but super slow on another

Question

My wpf program has a strange problem regarding the performance of running on another computer with the same specifications. One computer loads my program in less than a second. Another computer with the same specification loads 10+ seconds.

Using Visualstudio Performance Profiler, I notice that two computers load a program in different ways! which is so strange.

My problem is basically the same as this post: C # WPF Very slow application launch

The performance profiler on a “fast” computer (I mean running the program quickly) shows that the program starts with System.Windows.Application. Run () , while "slow" indicates that it starts with System.Windows.Application. RunInternal (...)

With the additional “internal” load time increases by 10 times, even if two computers have the same specification, and the source code is the same. (Actually, this is just a simple WPF mvvm light start file)

Any ideas?

Answer 1

• Log of not detected exceptions (at the application level).
• See if users on both computers have the same level of authorization (both are admin, or rather not).

This should help.

Answer 2

Another check might be an antivirus. Is one machine real-time AV and the other not? Are users registered in the same groups? Both cars in one OU?

Answer 3

Check on both computers which services are running. Test both CPU usage in two scenarios by starting the application and after closing the application.