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Offline AmigaPixel

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Re: Which Amiga OS to install
« on: October 10, 2009, 10:29:41 AM »
Quote from: Cammy;525342
3.9 is slow because of Picture Datatype, among other things. On an AGA machine, it is very slow remapping all images internally from 24bit to your palette-mapped Workbench screen. Since you're using a graphics card there shouldn't be any remapping needed, and images should display directly without the slowdown they'd get on an AGA system. Sticking with 3.1 won't hurt, but 3.9 does offer a lot more options and fixes, and should run quite well thanks to your RTG card.

I am concerned about that issue. I have an Amiga 2000 with a Video Toaster but no graphics card. I am planning on upgrading from 2.1 to OS 3.9. Is there a way to fix this remapping issue and keep it from slowing things down?
 

Offline AmigaPixel

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Re: Which Amiga OS to install
« Reply #1 on: October 10, 2009, 10:35:25 AM »
I should add that I am using a 030 at 50mhz and 68882 At 50mhz. Not the fast cpu but  I was hoping it could be optimized.
 

Offline AmigaPixel

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Re: Which Amiga OS to install
« Reply #2 on: October 11, 2009, 12:13:29 PM »
Quote from: cha05e90;525396
@cammy
"3.9 is slow because of Picture Datatype, among other things. On an AGA machine, it is very slow remapping all images internally from 24bit to your palette-mapped Workbench screen. "

Hmm, this is only true if someone uses 24 - 32Bit stuff all the time (WB backgrounds, icons etc.). This will be slow on a 3.1 system (with appropiate patches) as well. A 3.9 system can look and feel speedwise like a 3.1 system incl. all nice stuff you gain from the 3.9 update (AmiDock, AsyncWB, semi-kernel patches from BB2 et al.). It is always depending on how you configure/tweak your system. Due to a CRT problem I used my 030/OS3.9 for some time even with a A2024 (!) - 4 colours on Workbench (!) - without any real (speed) problem.


In that case I'll try OS 3.9 in 4 colors, I can always downgrade to 3.1. Isn't there unofficial BB3 and has anyone has tried it?
 

Offline AmigaPixel

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Re: Which Amiga OS to install
« Reply #3 on: October 12, 2009, 01:44:35 PM »
Thanks for the feedback, I was hoping to play with the features in OS 3.9 even if I really don't need them. Darn never should of sold my A1200/060 Doh! I know seen 3.1 on CF/IDE adapters but otherwise  is OS 3.1 still only on floppies?