Groups > alt.folklore.computers > #153383

Re: high level language idea

From	Anne & Lynn Wheeler <lynn@garlic.com>
Newsgroups	alt.folklore.computers
Subject	Re: high level language idea
Date	2015-10-27 09:11 -0700
Organization	Wheeler&Wheeler
Message-ID	<87mvv4ffzu.fsf@lhwserver.localdomain> (permalink)
References	(5 earlier) <6uudnWwjqLB1qbTLnZ2dnUU7-VOdnZ2d@giganews.com> <d8v03hFcoufU1@mid.individual.net> <0c6dnSNsV87bp7HLnZ2dnUU7-WmdnZ2d@giganews.com> <80d5c94e-13ec-4e05-9724-fa67c2993f26@googlegroups.com> <87r3kgfhxa.fsf@lhwserver.localdomain>

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Anne & Lynn Wheeler <lynn@garlic.com> writes:
> also regression tests ... PTFs could introduce failures &/or
> incompatibilities ... like "fixes" for JCL that had side-effect that
> would result in production jobs to stop running.

another side-effect ...  over time, PTFs could significantly degrade the
performance of my system.

When I did sysgen, I tore apart sysgen2 output of sysgen1 and
re-organized lots of the sequence to carefully place files and PDS
library members on disk to optimize arm seek motion (& PDS multi-track
search member lookup) ... which got nearly 3 times throughput
improvement on fortgclg student jobs.

PTFs would typically "replace" one or more PDS library members.
"Replace" is something of misnomer ... it would insert new member at the
end of the library and null out the member being replaced ... destroying
careful physical ordering on disk. After six months of PTFs, my
carefully generated system could loose half or more of the performance
optimization (enough PTFs might also use up max. space that had been
pre-allocated for library file).

old post with part of 60s SHARE presentation I made on system
optimization that I did as undergraduate. Most of it is about
significant rewrites of (virtual machine) cp67 system code to cut
simulation pathlengths ... benchmarking os/360 fortgclg in virtual
machine. Part of the post also discusses the optimizations that I did
for os/360.
http://www.garlic.com/~lynn/94.html#18 CP/67 & OS MFT14

recent posts mentioning fortran
http://www.garlic.com/~lynn/2015h.html#21 the legacy of Seymour Cray
http://www.garlic.com/~lynn/2015h.html#35 high level language idea

-- 
virtualization experience starting Jan1968, online at home since Mar1970

Thread

high level language idea "Bill Cunningham" <nospam@nspam.invalid> - 2015-10-20 17:47 -0400
  Re: high level language idea Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-21 01:09 +0000
    Re: high level language idea "Charles Richmond" <numerist@aquaporin4.com> - 2015-10-21 14:44 -0500
      Re: high level language idea hancock4@bbs.cpcn.com - 2015-10-21 13:15 -0700
  Re: high level language idea davidmylastname@acm.org (David Griffith) - 2015-10-21 01:16 +0000
    Re: high level language idea "Bill Cunningham" <nospam@nspam.invalid> - 2015-10-21 14:26 -0400
      Re: high level language idea hancock4@bbs.cpcn.com - 2015-10-21 12:13 -0700
        Re: high level language idea "Bill Cunningham" <nospam@nspam.invalid> - 2015-10-21 15:23 -0400
  Re: high level language idea bert <bert.hutchings@btinternet.com> - 2015-10-21 03:53 -0700
    Re: high level language idea rpw3@rpw3.org (Rob Warnock) - 2015-10-21 13:47 +0000
      Re: high level language idea "gareth" <no.spam@thank.you.invalid> - 2015-10-21 14:58 +0100
        Re: high level language idea Walter Banks <walter@bytecraft.com> - 2015-10-21 10:34 -0400
        Re: high level language idea Bob Eager <news0005@eager.cx> - 2015-10-21 16:43 +0000
      Re: high level language idea rpw3@rpw3.org (Rob Warnock) - 2015-10-21 14:46 +0000
    Re: high level language idea "Bill Cunningham" <nospam@nspam.invalid> - 2015-10-21 14:29 -0400
      Re: high level language idea Jon Elson <jmelson@wustl.edu> - 2015-10-21 14:19 -0500
        Re: high level language idea Roberto Waltman <usenet@rwaltman.com> - 2015-10-21 15:24 -0400
          Re: high level language idea Jon Elson <jmelson@wustl.edu> - 2015-10-22 14:13 -0500
            Re: high level language idea "Osmium" <r124c4u102@comcast.net> - 2015-10-23 09:55 -0500
              Re: high level language idea Peter Flass <peter_flass@yahoo.com> - 2015-10-23 11:42 -0400
                Re: high level language idea "Osmium" <r124c4u102@comcast.net> - 2015-10-23 11:48 -0500
                Re: high level language idea hancock4@bbs.cpcn.com - 2015-10-23 10:47 -0700
                Re: high level language idea Jon Elson <elson@pico-systems.com> - 2015-10-24 21:24 -0500
                Re: high level language idea Jon Elson <elson@pico-systems.com> - 2015-10-24 21:14 -0500
                Re: high level language idea Jon Elson <elson@pico-systems.com> - 2015-10-25 11:31 -0500
                Re: high level language idea Bob Eager <news0005@eager.cx> - 2015-10-25 18:13 +0000
                Re: high level language idea Anne & Lynn Wheeler <lynn@garlic.com> - 2015-10-23 11:20 -0700
                Re: high level language idea hancock4@bbs.cpcn.com - 2015-10-23 11:45 -0700
              Re: high level language idea Jon Elson <elson@pico-systems.com> - 2015-10-24 21:11 -0500
                Re: high level language idea hancock4@bbs.cpcn.com - 2015-10-27 07:40 -0700
                Re: high level language idea Anne & Lynn Wheeler <lynn@garlic.com> - 2015-10-27 08:30 -0700
                Re: high level language idea Anne & Lynn Wheeler <lynn@garlic.com> - 2015-10-27 09:11 -0700
                Re: high level language idea Dan Espen <despen@verizon.net> - 2015-10-27 12:52 -0400
                Re: high level language idea hancock4@bbs.cpcn.com - 2015-10-27 10:22 -0700
                Re: high level language idea Dan Espen <despen@verizon.net> - 2015-10-27 14:37 -0400
                Re: high level language idea Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-27 19:55 +0000
                Re: high level language idea hancock4@bbs.cpcn.com - 2015-10-27 17:46 -0700
                Re: high level language idea Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-28 01:22 +0000
                Re: high level language idea jmfbahciv <See.above@aol.com> - 2015-10-28 12:58 +0000
                Re: high level language idea "gareth" <no.spam@thank.you.invalid> - 2015-10-28 13:59 +0000
                Re: high level language idea jmfbahciv <See.above@aol.com> - 2015-10-29 13:55 +0000
                Re: high level language idea Bob Eager <news0005@eager.cx> - 2015-10-29 14:28 +0000
                Re: high level language idea "Rod Speed" <rod.speed.aaa@gmail.com> - 2015-10-30 05:06 +1100
                Re: high level language idea pechter@S20.pechter.dyndns.org (William Pechter) - 2015-10-29 19:55 +0000
                Re: high level language idea Lawrence Statton <lawrence@senguio.mx> - 2015-10-29 14:21 -0600
                Re: high level language idea pechter@S20.pechter.dyndns.org (William Pechter) - 2015-10-29 19:50 +0000
                Re: high level language idea hancock4@bbs.cpcn.com - 2015-10-28 07:33 -0700
                Re: high level language idea Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-28 16:58 +0000
                Re: high level language idea hancock4@bbs.cpcn.com - 2015-10-28 10:10 -0700
                Re: high level language idea Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-28 20:08 +0000
                Re: high level language idea hancock4@bbs.cpcn.com - 2015-10-28 13:58 -0700
                Re: high level language idea "Charles Richmond" <numerist@aquaporin4.com> - 2015-10-27 15:53 -0500
                Re: high level language idea - TTF Dan Espen <despen@verizon.net> - 2015-10-27 17:11 -0400
                Re: high level language idea - TTF scott@slp53.sl.home (Scott Lurndal) - 2015-10-28 13:24 +0000
                Re: high level language idea - TTF hancock4@bbs.cpcn.com - 2015-10-28 07:37 -0700
                Re: high level language idea - TTF Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-28 16:58 +0000
                Re: high level language idea - TTF Dan Espen <despen@verizon.net> - 2015-10-28 15:10 -0400
                Re: high level language idea Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-28 01:22 +0000
                Re: high level language idea Anne & Lynn Wheeler <lynn@garlic.com> - 2015-10-28 08:04 -0700
                Re: high level language idea Dan Espen <despen@verizon.net> - 2015-10-27 11:34 -0400
                Re: high level language idea hancock4@bbs.cpcn.com - 2015-10-27 10:14 -0700
                Re: high level language idea Dan Espen <despen@verizon.net> - 2015-10-27 14:30 -0400
                Re: high level language idea Bob Eager <news0005@eager.cx> - 2015-10-27 19:29 +0000
                Re: high level language idea Dan Espen <despen@verizon.net> - 2015-10-27 16:57 -0400
                Re: high level language idea Bob Eager <news0005@eager.cx> - 2015-10-27 21:50 +0000
                Re: high level language idea Dan Espen <despen@verizon.net> - 2015-10-27 17:58 -0400
                Re: high level language idea Ahem A Rivet's Shot <steveo@eircom.net> - 2015-10-28 09:04 +0000
                Re: high level language idea "gareth" <no.spam@thank.you.invalid> - 2015-10-28 09:42 +0000
                Re: high level language idea Roberto Waltman <usenet@rwaltman.com> - 2015-10-28 14:55 -0400
                Re: high level language idea Roberto Waltman <usenet@rwaltman.com> - 2015-10-28 15:02 -0400
                Re: high level language idea Bob Eager <news0005@eager.cx> - 2015-10-28 19:15 +0000
                Re: high level language idea Lawrence Statton <lawrence@senguio.mx> - 2015-10-28 13:25 -0600
                Re: high level language idea Michael Black <et472@ncf.ca> - 2015-10-28 17:54 -0400
                Re: high level language idea Ahem A Rivet's Shot <steveo@eircom.net> - 2015-10-28 19:19 +0000
                Re: high level language idea Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-28 21:09 +0000
                Re: high level language idea scott@slp53.sl.home (Scott Lurndal) - 2015-10-28 13:36 +0000
                Re: high level language idea Andrew Swallow <am.swallow@btinternet.com> - 2015-10-28 17:54 +0000
                Re: high level language idea Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-28 20:08 +0000
                Re: high level language idea "Charles Richmond" <numerist@aquaporin4.com> - 2015-10-28 17:54 -0500
                Re: high level language idea Alan Bowler <atbowler@thinkage.ca> - 2015-11-13 16:05 -0500
                Re: high level language idea Peter Flass <peter_flass@yahoo.com> - 2015-11-13 17:20 -0500
                Re: high level language idea Walter Banks <walter@bytecraft.com> - 2015-11-15 08:14 -0500
                Re: high level language idea Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-27 19:55 +0000
                Re: high level language idea hancock4@bbs.cpcn.com - 2015-10-27 18:00 -0700
      Re: high level language idea hancock4@bbs.cpcn.com - 2015-10-21 12:21 -0700
        Re: high level language idea "Bill Cunningham" <nospam@nspam.invalid> - 2015-10-21 15:25 -0400
        Re: high level language idea "Bill Cunningham" <nospam@nspam.invalid> - 2015-10-21 17:14 -0400
          Re: high level language idea jmfbahciv <See.above@aol.com> - 2015-10-22 12:51 +0000
        Re: high level language idea Peter Flass <peter_flass@yahoo.com> - 2015-10-21 17:56 -0400
      Re: high level language idea Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-21 19:43 +0000
        Re: high level language idea hancock4@bbs.cpcn.com - 2015-10-21 13:09 -0700
          Re: high level language idea Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-22 02:52 +0000
          Re: high level language idea "Charles Richmond" <numerist@aquaporin4.com> - 2015-10-23 16:04 -0500
    Re: high level language idea Walter Bushell <proto@panix.com> - 2015-10-28 20:19 -0400
  Re: high level language idea hancock4@bbs.cpcn.com - 2015-10-21 07:35 -0700
    Re: high level language idea Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-21 19:43 +0000
      Re: high level language idea hancock4@bbs.cpcn.com - 2015-10-21 13:00 -0700
        Re: high level language idea Anne & Lynn Wheeler <lynn@garlic.com> - 2015-10-21 13:35 -0700
          Re: high level language idea hancock4@bbs.cpcn.com - 2015-10-21 13:50 -0700
            Re: high level language idea Peter Flass <peter_flass@yahoo.com> - 2015-10-21 17:56 -0400
              Re: high level language idea hancock4@bbs.cpcn.com - 2015-10-22 07:22 -0700
                Re: high level language idea John Levine <johnl@iecc.com> - 2015-10-24 00:42 +0000
                Re: high level language idea hancock4@bbs.cpcn.com - 2015-10-24 20:26 -0700
                Re: high level language idea "Charles Richmond" <numerist@aquaporin4.com> - 2015-10-25 18:36 -0500
            Re: high level language idea Anne & Lynn Wheeler <lynn@garlic.com> - 2015-10-21 15:31 -0700
            Re: high level language idea Alan Bowler <atbowler@thinkage.ca> - 2015-11-20 17:17 -0500
        Re: high level language idea Alan Bowler <atbowler@thinkage.ca> - 2015-11-20 17:00 -0500
          Re: high level language idea Bob Eager <news0005@eager.cx> - 2015-11-20 22:20 +0000
            Re: high level language idea Peter Flass <peter_flass@yahoo.com> - 2015-11-21 08:35 -0500
      Re: high level language idea "Charles Richmond" <numerist@aquaporin4.com> - 2015-10-23 16:00 -0500
        Re: high level language idea Bob Eager <news0005@eager.cx> - 2015-10-23 21:07 +0000
        Re: high level language idea Alan Bowler <atbowler@thinkage.ca> - 2015-11-20 17:31 -0500
          Re: high level language idea Gene Wirchenko <genew@telus.net> - 2015-11-25 11:28 -0800
            Re: high level language idea Alan Bowler <atbowler@thinkage.ca> - 2015-12-22 14:00 -0500
              Re: high level language idea Gene Wirchenko <genew@telus.net> - 2015-12-22 11:43 -0800

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