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Author Topic: Is there any use for a PPC with just classic AmigaOS?  (Read 2907 times)

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Offline Piru

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Re: Is there any use for a PPC with just classic AmigaOS?
« on: October 31, 2006, 05:21:36 PM »
@AmigaMance

Run WarpUP-WarpOS/Demos/pixelOmania both under MOS and AOS. The speed difference should be evident.
 

Offline Piru

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Re: Is there any use for a PPC with just classic AmigaOS?
« Reply #1 on: October 31, 2006, 05:55:12 PM »
@AmigaMance
From humppa's post:
Quote
on MOS there is no speed-loss "thanks" to context-switching.


Well, what was the point then?
 

Offline Piru

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Re: Is there any use for a PPC with just classic AmigaOS?
« Reply #2 on: October 31, 2006, 06:25:46 PM »
@AmigaMance
Quote
i'm not mentioning anything about context-switching. Hummpa did.

Well, that's quite obvious. What I am wondering is why you quoted him while he was talking about something else.

Anyway, at least while I was still using my A1200, most WOS apps were clearly faster under MOS. Much of that was due to fully PPC native CGX and other OS components vs slower 68K counterparts under AOS. And this was with 060 BPPC, even.

However, if you have some WOS app that deliberately tries to avoid context swithces, it can then happen that it is marginally faster under AOS 3.x (since under AOS the PPC chip is 100% free for the app, while under MOS it also runs other parts of the OS). Regardless, I'm confident in claiming that MOS WOS emu beats the original in most cases, and it's less buggy, too... ;-)