• Subject: Re: Record Length - Trivia
  • From: John P Carr <jpcarr@xxxxxxxxxxxx>
  • Date: Thu, 14 Oct 1999 20:07:05 -0400

John P Carr wrote:
> >>John P Carr wrote:
> >> If there were such a thing as an optimal record length what would it be

>> Something like that.  On the CISC machines,  John Sears once said it
>> be 31 bytes because of something like you said.

>I can't remember that "cute" number(nobody cares anymore) but I "think"
>it was 256 for the CISC and it jumped to 512 for the risc... but I been
>wrong before. Back before we had machines with a gazillion disk bytes,
>I paid attention to that sort of thing..
Pat Barber

I think you were thinking of memory page size. The memory page size on the
CISC(and Sys/38) was 512.
(That is why it made sense to make character D/A's in multuples of 512
cause that is what they would take up anyway)

But the Risc changed to 4096 memory page size.    It's all meaningless now.

John Carr

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