You're right of course. I still stand by my assertion that most of the formats are stupid, and the standard SMF format is no prize-winner. Milliseconds (or even microseconds) since the start of some era would have fit conveniently in 64 bits, would have given one more digit of precision, would have made interval calculations trivial, would have put off partial conversion to a civil format from real-time to report-time, and would not have wrapped until well after we are all retired.
Charles -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Tom Marchant Sent: Tuesday, November 6, 2018 2:59 PM To: [email protected] Subject: Re: Speaking of time change... On Tue, 6 Nov 2018 14:21:26 -0800, Charles Mills wrote: >Frankly, most are stupid. Many are just some programmer's bright but >thoughtless idea. The "standard" SMF timestamp (seconds * 100)||0cyydddF takes >up just as much room as an STCK, has much less precision, and as originally >designed (with no 'c'), less range. SMF predates STCK. System/360 didn't have a TOD clock. -- Tom Marchant ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
