[iyonix-support] Re: Setting 'Next' size
- From: george <george.greenfield@xxxxxxxxxxxxx>
- To: iyonix-support@xxxxxxxxxxxxx
- Date: Sat, 06 May 2006 07:21:03 GMT
In message <4e2269128cj.mccartney@xxxxxxxxxxxxxxxx>
John McCartney <j.mccartney@xxxxxxxxxxxxxxxx> wrote:
> In article <4e225c24eblists@xxxxxxxxxxxxx>, John Williams
> <lists@xxxxxxxxxxxxx> wrote:
>
>> > Is there any reason BTW why the default setting is 640K?
>
>> I seem to remember that's what it was on early PCs, and
>> it was ridiculously large for economical RISC OS programs
>> at the time.
>
>> Could it be 360K disks and 1 MB memory? That seems to
>> work number-wise.
>
> If you menu over the floppy disc icon and look at the list
> of format options, you'll find out why it's 640K. As far as
> I'm aware, it's nothing at all to do with PCs. It's o that
> an entire ADFS L format floppy can be copied into memory.
>
> John
>
Interesting, and as I suspected: this is a legacy of a much earlier
generation of RO machines. Increasing the size radically speeds up
directory copying ops by about 50%, I've found (E.g. [Before]: 20
secs; [After increase to 10k]: 13 secs).
George
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