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Old 24 September 2020, 14:42   #1
radiojoystick
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Running two emulations at the same time -> very slow

Hello,

I have recently purchased Amiga Forever Premium Edition version 8.3.7.0 and while most things are working fine, I do have a problem when trying to run multiple emulation windows.


What happens as soon as a second emulation is started, the Amiga Forever UI becomes very unresponsive taking multiple seconds to register clicks or window drags. In the emulation itself, the mouse will be extremely laggy. It becomes very difficult to close the second window but once you do, everything goes back to normal.
I'm using the following system:
  • Ryzen 7 3800X
  • NVIDIA GTX 1070
  • 32GB RAM
I did test on a laptop with an Intel 10th-gen i5 and it works fine with multiple emulation windows open. Also using WinFellow instead of WinUAE works fine, maybe this is a WinUAE bug? I'm not sure.


Also, I've tried disabling all other running software, updating graphics drivers, disabling SMT in the BIOS, assigning CPU affinity and nothing has helped so far on my machine.
If you have any suggestions, I would love to hear them. Thank you.
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Old 24 September 2020, 14:46   #2
chip
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I personally open two WinUAE windows usually and all it's ok
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Old 24 September 2020, 14:58   #3
radiojoystick
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Just finished booting in safe mode and still the same issue.

Also, I didn't mention in my post that I have also try every combination of options in the Amiga Forever emulation settings such as DX9, DDraw, etc. I'm at a complete loss here as to what is going on.
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Old 24 September 2020, 18:45   #4
coldacid
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radiojoystick: AF does a bunch of funky stuff in order to put its own UI on WinUAE, and it's not very optimized, either. You'd be much better off running WinUAE directly if you're going to run multiple emulation sessions side by side, instead of using the Amiga Forever launcher.
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Old 24 September 2020, 20:00   #5
Galahad/FLT
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Sounds to me you have priority settings set too high, there is an option to turn them down.

I frequently run 2 copies of WinUAE, and my laptop is laughably shit in comparison to your machine.
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Old 25 September 2020, 00:18   #6
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Also try disabling sound in one or both instances and see what happens.
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Old 25 September 2020, 04:32   #7
radiojoystick
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I don't see how to disable sound in Amiga Forever, however, I can run multiple instances of WinUAE without issue. It must be something about the way Amiga Forever is running WinUAE.
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Old 26 September 2020, 15:42   #8
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A quick note.

On the laptop mentioned in my first post, two windows is okay unless I connect to an external display, then I see the same performance issues as on my desktop computer. It's very strange.
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Old 01 October 2020, 05:34   #9
hammer
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Quote:
Originally Posted by radiojoystick View Post
Hello,

I have recently purchased Amiga Forever Premium Edition version 8.3.7.0 and while most things are working fine, I do have a problem when trying to run multiple emulation windows.


What happens as soon as a second emulation is started, the Amiga Forever UI becomes very unresponsive taking multiple seconds to register clicks or window drags. In the emulation itself, the mouse will be extremely laggy. It becomes very difficult to close the second window but once you do, everything goes back to normal.
It's running fine on my system

Specs
AMD Ryzen 9 3900X

ASUS ROG Strix X570,

ASUS RTX 2080 EVO OC, Driver version 456.38, Hardware-accelerated GPU scheduling.

32GB RAM DDR4-3200

Three monitors with HDMI, DP (main 4K), HDMI.

Windows 10 version 2004.
AF PE version 8.3.7.0

I run Workbench 3.X and AROS emulated systems at the same time.
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Old 03 October 2020, 02:31   #10
radiojoystick
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I'm really starting to think it's display or video driver related. On the laptop, if I use the external display, I have an issue. On the desktop, if I have one window full screen, the second is fine, however, if both windows are in windowed mode, then I have the issue. I've just learned to use full screen for one if needed.
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