Debugging sometimes very slow

Try turning off the "Enable property evaluation…” setting in Debugger options, it should make debugging much faster (read more: Fix: Make Debugging Faster with Visual Studio):

_{(source: flickr.com)}

I've noticed in VS 2008 that if you have the 'Show Threads in Source' button selected in the debug toolbar that stepping can be at least 10 times slower.

I've also noticed that if your application takes a long time to start in debug mode that this can be resolved if you simply 'Delete All Breakpoints' under the Debug menu. This solved an annoying problem for me even though I only had a handful of breakpoints set at the time.

Silas

Disable Show Threads in Source in Visual Studio. and Close Call Stack Trace Window.

In addition to all issues mentioned above.

A "Disassembly" tab (opened in a background) slows down the debugging by 1-2 sec per step. (Not sure if it always happens like this).