Although perhaps Pipes will never be used much on z/OS, with PL/I and
now COBOL v6.3 supporting multi-threading, the performance system
programmers will soon have to be aware that application programmers may
introduce multi-tasking in batch job steps and possibly TSO.
Parenthetically, over 20 years ago we worked with a credit card
processor who had a production multitasking application under TSO.
On 2025-09-09 12:00 a.m., IBM-MAIN automatic digest system wrote:
Date: Mon, 8 Sep 2025 19:22:22 -0500
From: Jon Perryman<[email protected]>
Subject: Re: Pipelines = you don't understand z/OS
On Mon, 8 Sep 2025 08:56:03 +0100, Colin Paice<[email protected]> wrote:
A single task and synchronous I/o can have lower throughout compared to
The opposite can also be true. The point is the person responsible for
performance does not have any control over PIPEs. PIPEs are unpredictable
because the only person who has control is not a sysprog. Instead, it's every
application programmer.
Gary Weinhold
Senior Application Architect
DATAKINETICS | Data Performance & Optimization
Phone:+1.613.523.5500 x216
Email: [email protected]
Visit us online at www.DKL.com
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