RE: Sorting large file

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.
-|
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