@Zorro

Quote:

Zorro wrote: @Fab PS - Now stop to lose time with these nice but trivial things (and the related bragging... ) and hurry to help finishing the Mac mini port !

I second that!

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@AP

Quote:

AP wrote: @COBRA: Maybe this explains some of the test results. It seems that AmigaOS4 on PegasosII is not in the same way optimized like the versions for AmigaOne (or maybe SAM).

The IDE bug certainly explains DvPlayer and mplayer, obviously if they're reading in PIO mode it will be slower, in fact the speed difference is a lot, and if the MorphOS port of mplayer has similar optimizations like a copy routine which gives the best results on Pegasos, that is another advantage for the MorphOS version. So you're not really doing direct OS comparisons here, because OS4 apps are currently optimized to give the best performance on AmigaOne machines, not Pegasos.

The videomem copy routine may also explain some of the differences in 3D performance, however the speed differences in some of the tests is so great that there must be other things as well, which are responsible, for example we are talking about different ports, not identical code running on the two systems.

@COBRA

Well, i tested dvplayer from ram: too, and it indicates some surprising slowness when played from ram: actually (and no, vmem isn't used, it's disabled).

About Quake ports differences, well, they're minimal. All of them use the almost untouched original OpenGL code.

Last edited by Fab on 17-Feb-2009 at 03:52 PM.

@COBRA

"The videomem copy routine may also explain some of the differences in 3D performance"

You have to be joking here, right? show me how any quake is doing videomem copy.

"however the speed differences in some of the tests is so great that there must be other things as well,"

yeah, like much more advanced drivers and more optimized opengl implementation (not only for pegasos2, but in general).

"for example we are talking about different ports, not identical code running on the two systems."

morphos quake2 port was done by a person who knows nothing about opengl:) another bad excuse.

@Fab

RAM Disk was always slower on OS4 than hard-drive with UDMA.

It would be interesting to run glQuake OS4 version on MorphOS via OS4emu, that would rule out the differences in the port itself.

@COBRA

Quote:

RAM Disk was always slower on OS4 than hard-drive with UDMA.

umisef has also stated on this site the same is true for OS3.x.
In fact I've never heard anyone disagree with that.

#6

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@number6

slower ram disk than hd dma sounds really weird to me... what about handlers like amber-ram? AROS is using it, wouldn't be possible to use it on OS4 or find other solution?

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@COBRA

Quote:

It would be interesting to run glQuake OS4 version on MorphOS via OS4emu, that would rule out the differences in the port itself.

That would force MorphOS to use the slower MiniGL through its Warp3D wrapper. Why don't recompile blitzquake for OS4?

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@Crumb

Quote:

slower ram disk than hd dma sounds really weird to me...

My fault. I should have known people would be curious and therefore supplied the link.

Here

Discussed by umisef, itix, and HJF.
And yes, the handler was offered as one possible cause.

#6

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@Crumb

Quote:

slower ram disk than hd dma sounds really weird to me... what about handlers like amber-ram? AROS is using it, wouldn't be possible to use it on OS4 or find other solution?

That is only the case when you use a modern filesystem like SFS or JXFS, if you use FFS I don't think it'll be faster than Ram Disk. As far as I understand the Ram Disk code in OS4 hasn't changed much since 3.x, so it's using the same filesystem it used in the old days. But honestly, in everyday use, when did you find that the AmigaOS RAM Disk is too slow? It's only used for temporarily extracting archives, etc. and for that sort of thing it always seemed fast enough for me.

@Fab

Benchmark my AONE vs. You Pegasos
http://www.exec.pl/forum/posts/list/514.page

@Mufa

First you could tell us which version of Quake II,III you are using. Second is that you are using much weaker graphic card on pegasos. Radeon 9250 uses 64bit memory bus compared to 128bit in Radeon 9000 Pro. So, atleast use the same graphic card for both systems. Thread was about comparing MorphOS and AOS4.1 on the same hardware.

Last edited by Jakodemus on 17-Feb-2009 at 06:33 PM.

@Mufa and Jakodemus

There is fight!

@Mufa

removed: bah

Last edited by zerohero on 17-Feb-2009 at 08:29 PM.

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@Jakodemus

Quote:

Radeon 9250 uses 64bit memory bus compared to 128bit in Radeon 9000 Pro.

Does he state somewhere in his post that the Radeon 9250 is a 64bit one (no, I can't read Polish)? Just note that there are also variants of the Radeon 9250 with a 128bit interface. But I agree, the comparison is somewhat "odd".

@hatschi

Quote:

Does he state somewhere in his post that the Radeon 9250 is a 64bit one (no, I can't read Polish)? Just note that there are also variants of the Radeon 9250 with a 128bit interface. But I agree, the comparison is somewhat "odd".

Well, I asumed all 9250s are 64bit. Guess I was wrong. At least 9250 runs on lower mhz than the 9000 pro.

@hatschi

He used my results for the comparison, which are done with a 9250 64bits version.

But it's quite obvious a 9000pro gives much better results than a 9250SE, be it on pegasos or amigaone. Mufa mainly tests gfx card speed, but it's not really good since it's done on different motherboards.

If Radeon9100 worked in 3D on OS4, i would have used it for the tests, but it doesn't seem to be supported yet.

Last edited by Fab on 17-Feb-2009 at 07:05 PM.

@hatschi

Right, Radeon 9000Pro 128bit interface, but processor only 800MHz. I mean Pegasos 2, faster hardware.

@Mufa
have you read the thread topic?

OS4 VS MorphOS on the SAME hardware

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PowerBook G4 15" 1,67ghz running OSX (for now), MorphOS (when it's done!).

@Fab

Quote:

1. MPlayer ---------- Conditions: MorphOS uses "MPlayer r28114 (15.12.2008)" available at: http://aminet.net/gfx/show/MPlayer-1.0-20081215.lha OS4.1 uses "MPlayer Leitmotiv" available at: http://www.amigasoft.net/downloads/MPlayer.lha.lzh

Are you sure you used Leitmotiv version of MPlayer because I can't make Leitmotiv to display any benchmark results at all ? And if you cared to read the Readme file you would notice that Leitmotiv has Altivec DISABLED !

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