Hi,
we changed many JCLs using " AMP=('ACCBIAS=DO')" and succeded in CPU and
elapsed time reduction (up to 50% in few cases).
We used SMF64 to choose the best candidates.
If needed, I can share a simple SORT step to convert SMF64 to "readable"
CSV file.
Best regards.
Max
Il giorno lun 16 mag 2022 alle ore 16:36 Pommier, Rex <
rpomm...@sfgmembers.com> ha scritto:
> Hi list,
>
> Is the BLSR subsystem (batch local shared resources) still a
> viable/valuable thing or has it been replaced by something
> bigger/better/faster? I seem to be stuck in the mid-90s because the most
> current documentation I can find on it is from MVS/ESA 5.1 dated 1994. Is
> there more current documentation on how to use it and how it works? Has it
> been replaced and deprecated? I just had a developer use it last week and
> experienced a 40+ reduction in I/Os but I wanted to read up on its
> limitations - especially around using it on a shared VSAM dataset. However
> I can't find anything newer than 25+ years old. I did multiple internet
> searches which is where I found the ESA manual. I checked the knowledge
> center and my own z/OS 2.2 and 2.4 collections all to no avail.
>
> Thanks,
>
> Rex
>
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