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Author Topic: A4091 performance  (Read 5362 times)

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Offline danbeaver

Re: A4091 performance
« on: November 26, 2012, 02:48:09 AM »
Does the bus speed mean that much to what you do?  Could you use a UWSCSI controller instead?  A USB external drive gets 5 MB/s on a Deneb, would that help you out, or a FastATA card with one of the upper range PIO modes?
 

Offline danbeaver

Hijacking the A4091 performance Thread
« Reply #1 on: November 27, 2012, 01:23:26 AM »
Damion,

I get the same fornicating errors on large transfers from a. USB thumb device; I have tweaked the Poseidon settings to no avail. I think the Fat95 file system has issues with thumb drives on large transfers. Small chunks go fine; DOS copying does better than WB, and so on. Of I format the thumb in an FFS or so and use it like an Amiga drive, then I get better transfers before errors. What I do not understand is how CF cards (at least everyone I've tried) work so dern well in FAT mode, Amiga modes and over SCSI to card reader, USB to card reader and IDE connections. I get errors on large transfers on the USB bus, but only rarely on DOS shell copies.

When I use an external USB HDD I never see any problems.

"There are more things in heaven and earth, Horatio,
Than are dreamt of in your philosophy. "