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Old 21 November 2008, 14:10   #1
tbone
 
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E-UAE on Amithlon with 1,4Ghz to slow ?!

Hi there,

i built an amithlon system from scratch these days, got network and sound
working and seems stable so far. I downloaded e-uae for 68k (hard to find
on the internet, isn't it ?!) and played around with it yesterday. Well, it's
much slower than i expected.

Used 68000, 512KBChip, Frameskip >1 and just wanted to play Hybris nothing
special I guess.. but, it lags and the sound skips and hicks.. 1,4Ghz Athlon CPU
is to slow !? I see poeple emulating 68040 with Workbench and RTG-Screens,
what supercomputers are they using ?! Is it because the JIT cannot be
enabled on 68k-Systems (what amithlon emulates, underneath it is x86, you
know that.. o) Any hints for me !?

Have a nice weekend,
tbone..
 
Old 21 November 2008, 21:04   #2
Bloodwych
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I'm no expert on Amithlon, but it sounds like you are doing emulation inside emulation. So therefore you require double the CPU power (or more) to get a decent result.

WinUAE just about gets by on a 800Mhz CPU minimum in native Windows without JIT, the recommended suggestion is 1Ghz, so a 68K E-UAE version inside an emulated Amiga environment like Amithlon sounds like it's going to need a CPU faster than 1.4Ghz for decent performance.

I'm not familiar with E-UAE, but check it doesn't have any options like "cycle exact" or other performance sucking compatibility options enabled. To me though, it sounds like you need a better CPU.
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