Why does my program run way faster when I enable profiling?

Question

I have a program that\'s running pretty slowly (takes like 20 seconds even on release) so, wanting to fix it, I tried to use Visual Studio\'s built in profiler. However, whe

Answer 1

That sounds a lot like a Heisenbug.

They really happen, and they can be painful to uncover.

Your best solution in my experience is to change how you are profiling -- possibly several ways -- until the bug disappears.

Use different profilers. Try adding timing code instead of using a profiler.