SEVdemo: why does it eat up 100% cpu?

BBegemott · #1 September 23rd, 2006, 05:51 AM

1. Start taskmanager.
2. Open SEVd game. ALT+TAB from it.
3. Open Space Empires V Demo/Data/DebugSettings.txt
4. Set TRUE to 'Generate Game Debug Log' and 'Debug Section Main Drawing Loop'.
5. ALT+TAB into the game. Wait for 10 secs doing nothing. Dont move the mouse or press any key.
6. ALT+TAB from it.
7. Go to taskamanager. You should notice your processor has just been at 100% cpu. Why? You did nothing.
8. Go to Space Empires V Demo/Backup/SE5Game_Log.txt
9. Count, how many strings 'Adjust camera position' does this log file have?
10. Mine has got several thousand.
11. So here is the answer. The game moves the camera, though you dont.

Arralen · #2 September 23rd, 2006, 09:55 AM

Turn off loging and debugging routines and you'll be fine

NullAshton · #3 September 23rd, 2006, 01:48 PM

Most games take up 100% CPU even at the menu. It's nothing much.

Baron Munchausen · #4 September 23rd, 2006, 04:11 PM

It'll use 100 percent of CPU even without the debug settings. This is true of all 3D 'real time' games. They are designed to go for maximum performance in all situations. Every bit of available CPU will be claimed to keep those frames updating as fast as possible. And yes, the main display is a real-time 3D image. If you zoom in you can see the planets rotating.

PDF · #5 September 23rd, 2006, 07:14 PM

Quote:

NullAshton said:
Most games take up 100% CPU even at the menu. It's nothing much.

Yep, that's the reason : they can't eat up *more* than 100%, else they'll do !

Raapys · #6 September 23rd, 2006, 07:17 PM

Does it change if Vsync is on?

NullAshton · #7 September 24th, 2006, 01:31 PM

No... it's just where it's rendering your beautiful 3D graphics! Try that on any game. You'll find that it still takes up 100% of your CPU doing nothing. That's because the CPU is processing the data for the next frame to send to the GPU once it's done with the current frame. Something like that, I think.