Lagless Beamrace Questions

rsn8887 · 29 October 2019, 01:30

I finally got myself a Freesync Monitor, and now I can play in 50 Hz with buttersmooth scrolling.

The lagless Vsync (Beamrace) mode also works and I cannot go back after trying it once.

I am getting the occasional audio glitch and/or video glitch.

I am wondering, what is the number next to beamless Vsync selection box for? What does it mean? It changes something.

EDIT: I noticed if I change that number from the default "4" to "1" then I have zero glitches, PERFECT lagless gameplay! I cannot believe it.

EDIT2: I am using a cheap ($89 at amazon.com) freesync monitor "LG 22MK430H-B 21.5-Inch Full HD Monitor with AMD FreeSync, Black" via HDMI and my old ASUS NVidia 9500 GT gfx card

sonninnos · 29 October 2019, 03:09

They are slices. I use 10, and that equals 500 fps, which is low enough frametime delay versus GPU usage/heat for me.

Try forcing the program specific power management mode in the nvidia control panel to "prefer maximum performance" for more steady results with higher values. Or maybe that card just is not up for the task.

Retro-Nerd · 29 October 2019, 04:02

Quote:

EDIT: I noticed if I change that number from the default "4" to "1" then I have zero glitches, PERFECT lagless gameplay! I cannot believe it

1 slice is far from perfect. If your PC/graphics card is performance-wise capable then 4 slices are already pretty good. The more the better.

hexaae · 01 November 2019, 15:51

Mmmh, I never tried beamrace modes... I use G-sync'ed WinUAE and find it butter smooth for 50Hz games. Would there be some improvements in using beamrace + real 50Hz screen (because I need this one for beamrace, right?), and only for lag input stuff or is also visibly smoother?

Retro-Nerd · 01 November 2019, 16:05

Yes, for input lag only. G-Sync/Freesync usually removes 17-20ms lag, compared to standard Vsync enabled. Beamracing can remove much more lag, depending on the slice settings. Given that normal PC emulation causes 3-4 frames (or even more) total lag (= 60-80ms) you can reach real hardware+CRT TV/monitor lag by using the Beamracing option. If your PC is fast enough. Your laptop hardware specs looks good enough for that.

hexaae · 01 November 2019, 16:14

Thanks for detailed explanation

Toni Wilen · 14 November 2019, 21:02

As mentioned in beta thread, I added some tweaks to beamraced mode that improves stability greatly (at least here. most likely not all configs work identically as usual).

http://www.winuae.net/files/b/winuae.7z

rsn8887 · 21 November 2019, 06:40

I now switched to 2 slices, and I get less lag than any other emulator on my PC. Higher slices gives me some slowdown, but my computer is very old. Lagless beamrace makes WinUAE the only emulator that comes close or similar in performance to Mister FPGA with vsync_adjust = 2 setting in Mister.ini in terms of input lag.

Amazing!

Just to repeat: Once you have experienced this reduced lag, there's no going back. Playing fast games like Turrican without lagless beamrace feels like moving through sluggish molasses to me now.

29 October 2019, 01:30	#1
rsn8887 Registered User Join Date: Oct 2006 Location: USA Posts: 1,058	Lagless Beamrace Questions I finally got myself a Freesync Monitor, and now I can play in 50 Hz with buttersmooth scrolling. The lagless Vsync (Beamrace) mode also works and I cannot go back after trying it once. I am getting the occasional audio glitch and/or video glitch. I am wondering, what is the number next to beamless Vsync selection box for? What does it mean? It changes something. EDIT: I noticed if I change that number from the default "4" to "1" then I have zero glitches, PERFECT lagless gameplay! I cannot believe it. EDIT2: I am using a cheap ($89 at amazon.com) freesync monitor "LG 22MK430H-B 21.5-Inch Full HD Monitor with AMD FreeSync, Black" via HDMI and my old ASUS NVidia 9500 GT gfx card Last edited by rsn8887; 29 October 2019 at 01:35.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Beamrace Lagless Stability	Octopus66	support.WinUAE	27	08 January 2020 22:19
Beamrace Lagless 4.21	Octopus66	support.WinUAE	4	30 May 2019 22:32
Lagless vsync + Windows 10 1903/WDDM 2.6	falken	support.WinUAE	19	22 May 2019 16:06
Synchronize to native audio rate in lagless vsync mode	Dr.Venom	support.WinUAE	2	17 October 2018 14:58
A few questions	Sanxion	support.Hardware	13	04 October 2017 17:50

29 October 2019, 03:09	#2
sonninnos Commodork Join Date: Nov 2018 Location: Finland Posts: 82	They are slices. I use 10, and that equals 500 fps, which is low enough frametime delay versus GPU usage/heat for me. Try forcing the program specific power management mode in the nvidia control panel to "prefer maximum performance" for more steady results with higher values. Or maybe that card just is not up for the task.

01 November 2019, 15:51	#4
hexaae Bug hunter Join Date: Jul 2006 Location: Italy Age: 48 Posts: 2,161	Mmmh, I never tried beamrace modes... I use G-sync'ed WinUAE and find it butter smooth for 50Hz games. Would there be some improvements in using beamrace + real 50Hz screen (because I need this one for beamrace, right?), and only for lag input stuff or is also visibly smoother?

01 November 2019, 16:05	#5
Retro-Nerd Missile Command Champion Join Date: Aug 2005 Location: Germany Age: 52 Posts: 12,436	Yes, for input lag only. G-Sync/Freesync usually removes 17-20ms lag, compared to standard Vsync enabled. Beamracing can remove much more lag, depending on the slice settings. Given that normal PC emulation causes 3-4 frames (or even more) total lag (= 60-80ms) you can reach real hardware+CRT TV/monitor lag by using the Beamracing option. If your PC is fast enough. Your laptop hardware specs looks good enough for that.

01 November 2019, 16:14	#6
hexaae Bug hunter Join Date: Jul 2006 Location: Italy Age: 48 Posts: 2,161	Thanks for detailed explanation

14 November 2019, 21:02	#7
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,505	As mentioned in beta thread, I added some tweaks to beamraced mode that improves stability greatly (at least here. most likely not all configs work identically as usual). http://www.winuae.net/files/b/winuae.7z

21 November 2019, 06:40	#8
rsn8887 Registered User Join Date: Oct 2006 Location: USA Posts: 1,058	I now switched to 2 slices, and I get less lag than any other emulator on my PC. Higher slices gives me some slowdown, but my computer is very old. Lagless beamrace makes WinUAE the only emulator that comes close or similar in performance to Mister FPGA with vsync_adjust = 2 setting in Mister.ini in terms of input lag. Amazing! Just to repeat: Once you have experienced this reduced lag, there's no going back. Playing fast games like Turrican without lagless beamrace feels like moving through sluggish molasses to me now.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)