A lot of people still think of Java as a slow language.
A couple of years ago the Java community ran a challenge to see how fast you could produce a report from a 1 billion row text file. The winning entry was just over 1.5 seconds.
I thought I'd borrow the idea, and see how fast I could produce a report from SMF data from 1 billion CICS transactions. Processing 586 GB of CICS compressed SMF data and producing a report showing transaction counts, maximum, minimum and average elapsed times and average and total USRCPUT grouped by APPLID and transaction ID.
If you're interested, you can read more and see the results here: https://www.blackhillsoftware.com/news/2026/05/20/how-fast-can-you-process-smf-data-from-1-billion-cics-transactions/ -- Andrew Rowley Black Hill Software ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
