On 15/09/2025 3:03 am, Steve Estle wrote:
I used to do a lot of performance work in the late 90's - especially in relation to batch workload. What exactly happend to the BatchPipes / Smartbatch functionality for ZOS - did it just "die" or is there some sort of replacement functionality? It appears it's all discontinued with really no equivalent functionality for Z/OS?
I think it's still there if you activate it - I did experiment with it recently when I didn't have enough DASD on my test system for a dataset to contain intermediate results between 2 steps.
But I think the reality is that the problem it was designed to solve wasn't enough of a problem for people to actually use it.
My recollection is that when IBM changed technology from bipolar to CMOS back in the 90s, there was a period when the new processors were slower than the old processors. Batchpipes was promoted as a way to use more/slower processors instead of fewer/faster processors by running jobs in parallel instead of sequentially, when one job was dependent on the output from another.
I don't think that was as big a problem as was anticipated, and processor speeds got faster quickly anyway.
-- Andrew Rowley Black Hill Software ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
