a976c72010f117816fb4.newsdawg.com
From: "Dariusz Piatkowski"
On Sun, 5 Dec 2010 14:34:18 UTC, Peter Brown
wrote:
> Hi Dariusz
>
> Dariusz Piatkowski wrote:
> > On Fri, 3 Dec 2010 05:14:34 UTC, Steve Wendt wrote:
> >
> >> Dariusz Piatkowski wrote:
> >>
> >>> Well...speaking of USB attached drives...how 'workable' are these
solutions in
> >>> our OS2 environment? I ask b/c with my current hardware getting a simple
SD card
> >>> reader used to be a problem. Eventually with the right combination of USB
> >>> drivers I was ok, but even then the transfer rate was just miserable.
> >>
> >> Was that using FAT32? That's known to be incredibly slow with the
> >> FAT32.IFS.
> >
> > No, the SD card was FAT formatted and I was using the normal OS2 FAT
support to
> > read data off of it. I do not remember what the transfer rate was...but it
was
> > nothing to get excited about...
>
>
>
> This might be of interest - and may speed up USB reads/writes - see Q7
> http://en.ecomstation.ru/projects/usbtools/?action=faq-usb
I've applied this patch some time ago.
For reference, my new Pentax K-5 DSLR transfers at about 4-4.5MB/s, my old HP
850 on the other hand can only do about 700KB/s. The Pentax being a brand new
camera is most definitely a USB 2.0 device, the HP on the other hand claims to
be USB 2.0, but I'm thinking it's actually connecting at 1.0 speeds. Both of
the
cameras use some of the early SD cards, so nowhere near the fastest rates out
there as one would expect to see with the high-speed/high-capacity cards these
days. The Pentax in particular goes through storage space like it's going out
of
style...LOL, it's a 16 Meg camera, takes full HD1080 video as well...so I'm
definitely upgrading to a faster SD card this week.
What are you guys seeing in terms of xfer rates?
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