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LawsonThompson

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Posts: 589
Reply with quote  #1 

I have an experiment in progress and will post the results here. But it appears the most recent updates to Windows 10 (Creator's Update) may be improving desktop rendering and gaming capture functionality, while kicking DirectX 9 performance in the head.

What I'm seeing so far: On laptops with the same CPU and on-board graphics, Windows 10 won't reliably go over 40 FPS, while Lubuntu Linux and Windows 7 on the same hardware go way over 60 FPS.

The CPU in question is a Core i5-2520m + Intel HD 3000, on a Dell Latitude E6420 and two HP Probook 6460s. The Dell (Windows 7) destroys the HP (Windows 10 upgraded) in raw frame rates, by a margin of 3:1. 

Things I've tried to squeeze more speed out of the HP

  • Fiddled with full screen v. windowed, no improvement.
  • Checked the "Disable Fullscreen Optimizations" which is new in Windows 10 (for Game DVR support).
  • Turned off Windows 10 Game DVR settings in the settings panel.
  • Checked BIOS for internal GPU RAM sharing options (doesn't exist?).
  • Installed DirectX 9 redistributable, based on the hear-say that Windows 10 DirectX actually emulates DX9. 
  • Booted off a Lubuntu USB flash drive and ran the Artemis app under Wine. The frame rates in Linux were twice as fast than Windows 10!
The real test will be when I complete a Windows 7 reinstall tonight on one of the HP ProBooks. I suspect the bottom line will be that 2nd/3rd generation Core i5 CPUs+Intel HD 3000 isn't really Windows 10 compatible, even though Microsoft permits it to be installed so far as CPU and RAM are concerned. 

If Artemis 2.7 were more stable on Linux/Wine, I'd go Linux on these machines.

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LawsonThompson

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Posts: 589
Reply with quote  #2 
Aaaaand verified!

On identical hardware, Artemis performance on Windows 7 exceeds Windows 10 by a VERY wide margin. Now, this may only apply to this particular old hardware, Core i5-2520m laptops with Intel HD 3000 onboard graphics. 

Scene: Fighter parked outside the main ship, in nebula.

Windows 10: 20FPS, with 25% CPU load 
Windows 7: 500+ FPS, with 12% CPU load

When running in full-screen mode instead of windowed, Windows 7 will lock to the 60FPS refresh rate of the LCD display.

So, the moral of the story? When it comes to deploying older hardware for Artemis, consider keeping the original OS on the old hardware instead of taking the "FREE" upgrade to Windows 10!


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