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Game gets higher fps when executing through gDebugger

Started by felipedrl May 31, 2012 at 12:36 PM 3 replies 2.7k views
Original Post
felipedrl
felipedrl
Hi,

I'm working on improving my game performance and I'm using gDebugger to profile it. I've come to a problem that when executing the game through gDebugger I get ~150fps, while when executing the game normally I get only ~60. I print the fps on screen and I can assure it's not an error in my fps computation, since when I run through dDebugger the fps print matches the value in gDebugger.

I'm using MSV Compiler. The binary has no code optimization (-O0). My game had a 60 frame cap but I've disabled it. Any ideas?

Thanks.
SimonForsman
SimonForsman
60 fps is perfectly normal if vertical synchronization is enabled. (It might be disabled while debugging) and thus its nothing to worry about.
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[color=#282828][font=helvetica, arial, verdana, tahoma, sans-serif]

[background=rgb(250, 251, 252)]I'm working on improving my game performance and I'm using gDebugger to profile it. I've come to a problem that when executing the game through gDebugger I get ~150fps, while when executing the game normally I get only ~60.[/background]

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Hitting 60 FPS on your target hardware? Performance = achieved!

If your game isn't finished, stop now and continue to develop the core game. When you add new stuff to your game, it could invalidate some of these optimisations you would be adding. In addition, new, bigger bottlenecks might appear. Finally, optimised code tends to be more difficult to maintain. These are all reasons to defer non-essential optimisation until later.

You should only optimise in the middle of a game if there are clear performance problems.

[color=#282828][font=helvetica, arial, verdana, tahoma, sans-serif]

[background=rgb(250, 251, 252)]Any ideas?[/background]

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Ship with dDebugger?

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felipedrl
felipedrl
It would be awesome to ship with gDebugger, hehehe. But seriously, I'm hitting 60fps in my hardware, which is a fairly good computer, other less powerful hardware will not achieve that. I guess it would be a better approach to debug on worse machine and find the bottleneck there instead of mine. The fps problem still bugs me though.

I wonder if gDebugger has some sort of dark magic...
felipedrl
felipedrl
Figured out the magic, it turns out the gdebugger has vsync off while my game setting turns it on.

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