Reply 600 of 607, by asdf53
Agent of the BSoD wrote on 2020-12-01, 03:30:
How does one use renutil? I can't find any documentation on it and simply running it changes nothing. It looks like you can pass […]
How does one use renutil? I can't find any documentation on it and simply running it changes nothing. It looks like you can pass through some input but I can't tell what I should be doing, and there seems to be no built in help. If anything, I've had it drop performance of applications by half or more instead of speeding them up. I am using a V1000.
All it outputs is:
Current Monitor setting = 0
Current VGA type setting = 1
I used trial and error to figure it out. It expects two parameters: Monitor and VGA setting, example: "renutil 0 1". I don't know what the monitor setting does, I left it at "0". The VGA setting can be set to 0, 1 or 2. "1" is the default mode, "0" is slower than default, and "2" means VGA 320x200 will be remapped to the fast VESA mode, this is what you want.
Comparison between modes:
chris's 3d benchmark: 9.6 fps
pc player: 8.0
chris's 3d benchmark: 26.5 fps
pc player: 14.6
chris's 3d benchmark: 56 fps
pc player: 19 fps
quake: 16.7 fps
The mode 2 results are probably CPU limited since I'm on a Pentium 66. On a fast system the difference could be even bigger.
Doom was interesting, it runs at 11 FPS in mode 1, and in mode 2 it becomes fast (36 fps), but the screen will be split into many small "screens"of Doom. And when you quit the game, the DOS prompt becomes messed up, with a dark brown font that is almost unreadable. You have to reboot or start another graphics application to return to normal.
I then tried some Doom source ports for DOS:
FastDoom: Runs at a quite playable 16 fps in mode 1, mode 2 is also glitched
FastDoom 13h: 34 fps in mode 1, 54 fps in mode 2
FastDoom VBR: 54 fps, runs in mode 2 by default so renutil is not needed
DosDoom: Interesting, this one works with mode 2. I cannot benchmark it because the timedemo always freezes, but I'd say it's around 15 fps in mode 1 and 25 fps in mode 2.
Boom: This is a strange one - the timedemo yields 23 fps in mode 1 and 33 fps in mode 2, but this has to be an error. From what one can see on screen, it runs just as bad as vanilla doom, probably 10 fps. Also the colors are off, it's way too bright.