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JCL & VSAM :: RE: High CPU consumption Job using IAM files as input

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Author: vasanthz
Posted: Fri Dec 02, 2016 12:12 am (GMT 5.5)

When we were using IAM, IAMINFO is the starting point. There would be lot of useful information about the reads/writes, one easy thing to check was the number of buffers that IAM decided to use for that particular file.
IAM would also provide recommendation about buffers for the file on IAMINFO dataset.

There might be other causes, but this is one quick thing to check.
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