Are these 320MB/sec values the highest ever reported for graphic card writes on Amiga PPC devices?
On any PowerPC HW ever? (fastest G5 PowerMacs might have been better than this)

(I imagine it's the same as RAM to VRAM copy thingly like on Hanz tests
http://hdrlab.org.nz/benchmark/gfxbench2d/OS/AmigaOS/Result/584
http://hdrlab.org.nz/benchmark/gfxbench2d/OS/AmigaOS/Result/656 )

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Last edited by KimmoK on 13-Jun-2012 at 05:22 PM.
Last edited by KimmoK on 13-Jun-2012 at 05:17 PM.
Last edited by KimmoK on 13-Jun-2012 at 05:16 PM.

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- KimmoK
// For freedom, for honor, for AMIGA
//
// Thing that I should find more time for: CC64 - 64bit Community Computer?

Nice!

Sound like this is going to help a lot.

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Facebook::LiveForIt Software for AmigaOS

Ran GFX2DBench and uploaded my results for a variety of 32-bit screen results.

Thanks for this release!

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Thanks for this new update!

great update!!!

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See my blog and collection website! . https://www.blog.amigaguru.com

Someone got a link to 2D bench results made with this latest setup tool?

(after 1 minute search I did not find these new results there)

_________________
- KimmoK
// For freedom, for honor, for AMIGA
//
// Thing that I should find more time for: CC64 - 64bit Community Computer?

I thought a PCIe based machine would be faster.
AGPx2 = 533MB/s
AGPx4 = 1066MB/s
AGPx8 = 2133MB/s

G5 have fast memory controller so it should not be problem to reach that 320MB/s value with or without AGP/PCIe DMA.

Keep in mind that in addition to the cpu you can also use DMA to copy data to gfx mem, so even a G4 based mac could move data between memory and gfx mem reaching the maximum speed allowed by ram (that would be higher than cpu to ram writes). That's why DDR&DDR2 are useful on G4 based machines, the cpu can't take full advantage of DDR&DDR2 but all the rest of hardware can, so you can have textures in ram that are copied to gfx mem without cpu intervention at the maximum speed allowed by ram controller.

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I have installed it, what happens next, somewhere I can test speeds?

My result

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SAM 460 with 2GB or RAM, 1000GB HD, 4 port SATA, DVDRW drive and Radeon HD 4650 GFX card.

@Crumb

Well news items seams to suggest it depends on type of graphic card your using.
Big difference between theoretical values and measured / bench marked values.

Is not AGP GRANT sidebands hard to exploit fully.

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http://lifeofliveforit.blogspot.no/
Facebook::LiveForIt Software for AmigaOS

Nice update. Thanks Acube/Massimiliano Tretene.

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AmigaOne X1000 1,8 Ghz/2 GB Ram + Radeon 6670 2 GB + AmigaOS4.1
A4000T CyberstormPPC 604e-200Mhz/060/128MB+CybervisionPPC 8MB + AmigaOS4
and anymore other Amigas...

PCIe has theorethical 250MB/s per lane speed.
SAM460 has 4 lanes, so 1GB/sec theorethical.
(IIRC, it does PCIe v1, not v2)

It might be impossible to get near 1GB/sec by PPC460 CPU?
But perhaps with RAM to VRAM DMA transfer.

(similarly x1000 should one day reach 4GB/sec when DMA is used)

_________________
- KimmoK
// For freedom, for honor, for AMIGA
//
// Thing that I should find more time for: CC64 - 64bit Community Computer?

As always, acube delivers.

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I'm an antique. Don't light my fuse

Has anyone done before and after tests with ragemem to see what the video bus test reveals.

@Crumb
Quote:

Keep in mind that in addition to the cpu you can also use DMA to copy data...

Gosh, thanks for all the highly useful insights...

Last edited by ssolie on 15-Jun-2012 at 04:00 PM.

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