|
He was feeding that thing with huge SETACST brings - as fast as the disk subsystem could force it in. SORT is almost always IO bound so he did the best he could to make it CPU bound. Index building has the same problem - almost always IO-limited. Dick is fairly good at performance and language issues ;) Richard Jackson mailto:richardjackson@richardjackson.net http://www.richardjacksonltd.com Voice: 1 (303) 808-8058 Fax: 1 (303) 663-4325 -|-----Original Message----- -|From: owner-midrange-l@midrange.com -|[mailto:owner-midrange-l@midrange.com]On Behalf Of Simon Coulter -|Sent: Thursday, October 05, 2000 6:43 AM -|To: MIDRANGE-L@midrange.com -|Subject: Re: Sorting large file -| -| -|M -|Hello Richard, -| -|You wrote: -|>3. Use the reformat utility on the 400 - Dick Bains will tell you that he -|>created the buffering and it is pretty good. He liked SETACST. The more -|>CPUs and memory and dasd bandwidth the better. -| -|I remember having lunch with Dick once many moons ago (kind of -|appropriate duration :) -|and we were discussing program performance. He was pretty -|pleased with his sort -|routines. He said he'd been asked to write a 'fast sort' so he -|did. The sort started, -|did its work fast, but nothing else got a look in :) The console -|lit up, the lights -|dimmed, and the sort ran .... -| -|Regards, -|Simon Coulter. -| -|«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«» -|«» FlyByNight Software AS/400 Technical Specialists «» -|«» Eclipse the competition - run your business on an IBM AS/400. «» -|«» «» -|«» Phone: +61 3 9419 0175 Mobile: +61 0411 091 400 «» -|«» Fax: +61 3 9419 0175 mailto: shc@flybynight.com.au «» -|«» «» -|«» Windoze should not be open at Warp speed. «» -|«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«» -|+--- -|| This is the Midrange System Mailing List! -|| To submit a new message, send your mail to MIDRANGE-L@midrange.com. -|| To subscribe to this list send email to MIDRANGE-L-SUB@midrange.com. -|| To unsubscribe from this list send email to -|MIDRANGE-L-UNSUB@midrange.com. -|| Questions should be directed to the list owner/operator: -|david@midrange.com -|+--- +--- | This is the Midrange System Mailing List! | To submit a new message, send your mail to MIDRANGE-L@midrange.com. | To subscribe to this list send email to MIDRANGE-L-SUB@midrange.com. | To unsubscribe from this list send email to MIDRANGE-L-UNSUB@midrange.com. | Questions should be directed to the list owner/operator: david@midrange.com +---
As an Amazon Associate we earn from qualifying purchases.
This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].
Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.