Laurence,
Rather than clogging up IBM-MAIN with a large number of back-and-forth
emails, I would suggest that we take this discussion offline and publish
the final results here when we are done.
I have sent you a LinkedIn connection request to get us started.
Allan
On Sat, Jul 15, 2023 at 11:18 PM Laurence Chiu <[email protected]> wrote:
> On Fri, Jul 7, 2023 at 5:35 PM allan winston <[email protected]> wrote:
>
> > I did a lot of work in this area 20 years ago.
> > [snip]
> >
> > CICS is an entirely different ballgame. In the rare event that the VSAM
> > files in your shop are still using LSR instead of RLS, then there are
> > opportunities for performance improve by appropriate changes to the FILE
> > and LSRPOOL specifications using Resource Definition Online or,
> > equivalently, via the batch program DFHCSDUP. Never let files with
> > significant activity default to pool 1.
> >
> >
> >
> > Allan
> >
> >
> >
> Our shop is CICS and I am not sure we are even using LSR and certainly no
> RLS since there is no parallel sysplex.
>
> The primary master files are VSAM and we run a lot of batch using CICS EXCI
> in order (I am told) to facilitate sharing between online and batch and
> also to avoid reproducing of lot of the business logic already in the
> online transactions.
>
> Sounds like to me there could be opportunities to tune our batch which does
> run quite slowly, both during the daytime when the onlines are busy and
> during evening batch when the onlines have quite load transaction volumes.
>
> Where should I go looking?
>
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