MiSTer-devel/ao486_MiSTer

Suggestion::Compile releases with Fitter Optimization = Aggressive Performance, Seed = 3141

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I recompiled the core with the above options and it increased my performance a lot. (Attached). The core is also more stable when attempting MAX oc. I know that the fitter lotto will always produce slightly different results so it may not be replicable.

Games tested with increased performance:
The Neverhood (Dramatically better)
Ultimate Doom (Better)
TekWar (Video was smoother, gameplay was dramatically better)
Blood/Duke/Redneck (Much better. High res runs like low res on current release core, low res runs fairly smooth)
RoadRash (marginally better)
Diablo (Dramatically better)

Games with no change:
Monkey Island 3

ao486.zip

Note, the seed is obviously just a shot in the dark with a nerdy twist because I'm absolutely nothing if not a predictable basic b. Other seeds may be better.

Any change in code will change best SEED number.

Any change in code will change best SEED number.

I figured that was the case for seed. It's not calculable either, is it? (that is, you have to buy a license to use design space sweep if you want to do it automatically) You have to just seed build and run repeatedly to find best? Which sounds awful.

You are right, there is no way to calculate a best seed. You only can build with different seeds and peek the best one.