Question

Possible Duplicate:
Disassembly view of C# 64-bit Release code is 75% longer than 32-bit Debug code?

I have an extremely simple C# Console Application, hat does some sorting on a big number of elements (only a few lines of code with array operations).

When I start the release code from Visual Studio IDE with F5 or Ctrl-F5 the program is about 3x slower than when started directly from Win-Explorer.

41.140 seconds when launched from VS 2010 IDE
13.950 seconds when launched by double-clicking myprogram.exe

Why???

Answer 1

Starting a program with the debugger attached will always be significantly slower than without it.