Re: subfile processing: SFLSIZ=SFLPAG (was: readc & sflnxtchg)

["R. Bruce Hoffman, Jr." <rbruceh@xxxxxxx>]

Buck Calabro/commsoft wrote:

> The "expanding" subfile is my preference, too but I make SFLSIZ equal to
> the number of pages I expect the average user to load - typically 3 times
> SFLPAG.  I recall some advice from my dusty memory that the system
> allocates SFLSIZ records at a time in the PAG.  Is this still true, and
> more importantly, is this still relevant?

This is (IMHO) the correct way.  Is it still relevant?  Yes  if performance is 
an
issue.  Can you measure the difference on an underutilized high performance
AS/400?  Not likely, but at some future point in time, that box is likely to be
more heavily utilized and since we are talking about an interactive environment,
it is better to plan ahead, than to go back and figure out which subfile
techniques are causing the customer to order a new box for performance
considerations.

--
===========================================================
R. Bruce Hoffman, Jr. -- IBM Certified AS/400 Administrator

-- The sum of all human knowledge is a fixed constant.
    It's the population that keeps growing!


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