Very specifically with COBOL 6 (and COBOL 5, which was kind of a beta of COBOL 6 <g>) IBM has greatly improved the runtime code optimization. That is all goodness, but there is a price to pay, and the price is greater compile CPU and wall clock times, especially with OPT values other than zero.
Charles -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Robert Prins Sent: Saturday, January 15, 2022 5:14 AM To: [email protected] Subject: Re: COBOL V6 question Unable to test now, but I think we observed the same thing many years ago when moving from OS PL/I to Enterprise PL/I, and on the now defunct FanDeZhi system (z/OS 1.6 running under Hercules), where both compilers were "installed", it was definitely the case that EPLI compiles used to take significantly longer than OS PLI compiles. On Fri, 14 Jan 2022 at 16:39, Charles Mills <[email protected]> wrote: > White paper about the dramatic increase in compile CPU times here: > > https://cloudcompiling.com/whitepaper2/ > > Charles ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
