Re: To Upgrade or Not. What's the difference?



In message <95f176e24e.pittdj+@xxxxxxxxxxxxxxx>
David Pitt <news@xxxxxxxxxxxx> wrote:

In message <06b56fe24e.news@xxxxxxxxx>
News poster <mistymornings@xxxxxxxxx> wrote:


[snip]

I do not need more waffle. My question is very specific and clear and I
will ask it again. At what filesize does the A9 cease to be quicker than
the Iyonix at loading and saving a file (assuming at some point this
happens).

I wrote a little proglet that times writes and reads of 20MB as a
single file, 20 1MB files and 200 100kB files.

Iyonix
1 * 20MB file Write/Read 1.98secs
20 * 1MB files Write/Read 2.36secs
200*0.1MB files Write/Read 6.64secs

A9home
1 * 20MB file Write/Read 4.45secs
20 * 1MB files Write/Read 4.52secs
200*0.1MB files Write/Read 2.7secs

These figures show the A9home performing well with small files. What
we can say is that the 'cross over' is somewhere between 1MB and
100kB.
Thanks for that. So in my case where I load lots of 0.8MB to 2.5MB
camera images there would be pretty much no advantage in an A9 over an
Iyonix.

Also interesting is that using your figures the average write/read for a
100k file is 0.033 seconds for the Iyonix and 0.0135 for the A9.

I think I would be pushed to see a difference when saving a single text
file from StrongEd. Or are there more overheads with single transfers?

Does Nextslot size make a difference to the speed of file transfers
(mine is at 28MB)?
Regards
Stan

--
http://mistymornings.net
.



Relevant Pages

  • Re: So long and thanks for all the fish.
    ... all-round processing such as graphics processing etc. ... than that on the Iyonix the A9home's 2.5 drive might have an advantage ... 200*0.1MB files Write/Read 6.64secs ... What is the minimum file allocation on each harddrive and what onboard ...
    (comp.sys.acorn.misc)
  • Re: So long and thanks for all the fish.
    ... David Pitt wrote: ... 200*0.1MB files Write/Read 6.64secs ... slowing with small files whereas the A9home was actually faster. ... For completeness the Iyonix has a 120MB 7200rpm drive with an 8MB cache. ...
    (comp.sys.acorn.misc)
  • Re: So long and thanks for all the fish.
    ... David Pitt wrote: ... 200*0.1MB files Write/Read 6.64secs ... slowing with small files whereas the A9home was actually faster. ... For completeness the Iyonix has a 120MB 7200rpm drive with an 8MB cache. ...
    (comp.sys.acorn.misc)