Thread: 2min in debug mode, 3sec in release!

I'm using VC++.NET 2003 version, I have a rather complex program that, in some point, uses 2 nested for loops like this:

Code:

for (int i = 0; i < 2000; i++) {
	if ( /* some condition */ ) { continue; }
	for (int j = 0; j < 2000; j++) {
		if ( /* some condition */ ) { continue; }

		if ( /* some condition */ ) {
			// do something
		}
	}
}

I can't optimize it any further.

The problem is that this loop takes around 2 minutes to finish on my 2.4 GHz P4!
I used the debugger and made the sure that this loop is delaying the whole program, nothing else.
I tried to find something wrong in the conditions or the processing but everything was OK, finally I decided to switch to release mode and voila, it take only 3 seconds!
I'm using release mode right now, it work fine, however, I can't use the debugger any more
Any ideas how to speed things up in debug mode? cuz I really need the debugger.
thx

you really need a loop to run 4 million times?

What, pray tell, do you need to do 4 million times?

> Any ideas how to speed things up in debug mode? cuz I really need the debugger.
Yeah, you test it with a 20x20 section of the map rather than a 2000x2000 section.

Debugging is all about providing you with the most amount of information about what is going on in your code. Release mode is about removing all the excess fluff to make the code as quick as possible.

At the end, if you've done your debugging properly and written the code correctly, the actual size of the map should be irrelevant. If it worked well at 20x20, then it should work equally well at 2000x2000.

If it doesn't, then you've missed something, so go back to 20x20 and reconsider what it is you're doing.