Zorro III speed (asynchronous vs synchrous etc..) 50mb/s ?!

[Cass]

I have a little proggie you can test your gfx card's VRAM access speeds with, if you want to test it.

I'm still waiting for this nice little proggie :-). Check your old PMs.
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Gay Asian

[Cass]

Thanks Karlos! :-D
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Zoloft settlements

[Cass]

I've first read about the benchmark program here. My results are the following:

640*400@24 bits

Read RAM : 47274.53 K/sec
Write RAM : 46382.56 K/sec
RAM->RAM : 22630.56 K/sec
RAM->RAM[16] : 26444.66 K/sec
Read VRAM : 3220.04 K/sec
Write VRAM : 7284.17 K/sec
RAM->VRAM : 7065.75 K/sec
RAM->VRAM[16] : 6811.73 K/sec
VRAM->RAM : 2841.36 K/sec
VRAM->RAM[16] : 3157.89 K/sec
Conversion : 21386.14 K/sec [output bandwidth]

Conversion attained 302.67% copy speed

1024*768@16 bits

Read RAM : 47571.85 K/sec
Write RAM : 47164.18 K/sec
RAM->RAM : 22111.55 K/sec
RAM->RAM[16] : 26444.66 K/sec
Read VRAM : 2985.07 K/sec
Write VRAM : 7330.83 K/sec
RAM->VRAM : 7024.39 K/sec
RAM->VRAM[16] : 6923.08 K/sec
VRAM->RAM : 2772.64 K/sec
VRAM->RAM[16] : 3027.75 K/sec
Conversion : 7072.69 K/sec [output bandwidth]

Conversion attained 100.69% copy speed

All this started from a real problem: I run Earth 2140 and noted jerky scrolling. I thought that is impossible to have in market s/w that can't be used on the h/w it's supposed to work on.

If I calculated correctly, for a 16bp 800x600 @ 30fps you'll need about 30MB/sec!
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Vapolution

[Cass]

@Karlos
Actually, that's what I thought in the first place, but I had my doubts after the poster's suggestion and the facts (the game itself)... :-?

Anyhow, the 7MB/sec it's pityful and I don't know if it's idiopathic, or there something that can be done to improve it (I've already have a BUSter v11).

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Pissing fetish