This IBM® Redpaper™ publication shows you how to speed up batch jobs by splitting them into near-identical instances (sometimes referred to as “clones”). It is a practical guide, based on the authors’ testing experiences with a batch job similar to those found in customer applications. This guide documents the issues the team encountered and how we resolved them. The final tuned implementation produced considerably better results than the initial traditional implementation.
Because job splitting often requires application code changes, this guide includes a discussion of some aspects of application modernization you might consider if you need to modify your application.
The authors mirror the intended audience for this paper, since they are specialists in DB2®, IBM Tivoli® Workload Scheduler for z/OS® (TWS/z), and z/OS batch performance.
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This material has not been submitted to any formal IBM test and is published AS IS. It has not been the subject of rigorous review. Your feedback is welcomed to improve the usefulness of the material to others.
IBM assumes no responsibility for its accuracy or completeness. The use of this information or the implementation of any of these techniques is a customer responsibility and depends upon the customer's ability to evaluate and integrate them into the customer's operational environment.