That is not an uncommon sort of thought process and/or outcome. It's unfortunate but it is human nature.
Charles -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Jesse 1 Robinson Sent: Saturday, October 27, 2018 12:30 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Application change for ISAM effects wasRe: SORT not behaving consistently I believe the switch was made before the app went into production, so CPU comparisons would have been speculative. The master file was ISAM because it was too early in mainframe evolution to take advantage of VSAM support in COBOL. Years later at another shop I investigated converting an ISAM application to VSAM, a remarkable trick to hugely improve performance with no programming changes. The app was run on contract for an outside governmental entity. I still shake my head at the outcome. VSAM conversion was nixed by my management because--as the contract was written--we would have collected less revenue from the owner in view of huge performance gains. Wow. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
