Re: ADTPro 1.1.2 Released

[Polymorph <polymorph69@hotmail.com>]

On Feb 20, 12:09 pm, "Michael J. Mahon" <mjma...@aol.com> wrote:
> Eric Rucker wrote:
> > On Feb 19, 4:30 pm, schmidtd <schmi...@my-deja.com> wrote:
>
> >>I see the exact same thing you do with having to do a bunch of D-Esc-D-
> >>Esc-D-Esc sequences to get the Uther version to finally connect.  I
> >>can't seem to figure out why it won't "go" out of the gate.  I've
> >>tried several different things to no avail.  The client currently
> >>sends a ping on startup (if you've previously configured the Ethernet
> >>parameters) to hopefully cut down on the number of times you have to
> >>do it yourself.  Maybe I should just try sending a bunch. :-)
>
> > Hmm.
>
> > Here's another thing, although I know it's not likely... on a GS, is
> > it possible to be fast enough to pull in data while saving to disk at
> > the same time, to take advantage of the fast CPU? Or, even if it is
> > possible, would it just slow things down to do that?
>
> On any Apple II, it's not possible to do *anything* else while
> writing to a 5.25" diskette.  Writing is done with critically
> timed CPU loops, at the canonical "1MHz" Apple II speed.
>


As Michael has pointed out, writes to disk while reading from the
serial port are a no-go. However, a IIgs generally has vastly more
memory available to it (2Mb+), and therefore I see a possible increase
in performance by buffering large portions (possibly the whole file/
image) of the serial transfer in RAM before writing to disk. I would
expect an increase in overall throughput by not writing out to disk as
frequently. How much of an increase I'm not sure, but I plan on
finding out.  :-)

Cheers,
Mike