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| From | Lynn Wheeler <lynn@garlic.com> |
|---|---|
| Newsgroups | comp.arch |
| Subject | Re: IBM and Amdahl history (Re: What is an N-bit machine?) |
| Date | 2024-11-29 08:24 -1000 |
| Organization | Wheeler&Wheeler |
| Message-ID | <87iks5j3td.fsf@localhost> (permalink) |
| References | <viao3r$na9e$4@dont-email.me> <memo.20241128220827.12904a@jgd.cix.co.uk> <87frnbyo54.fsf@localhost> <2024Nov29.082228@mips.complang.tuwien.ac.at> |
anton@mips.complang.tuwien.ac.at (Anton Ertl) writes: > OTOH, Amdahl corporation did not make it until the end of the century > (at least not on its own; it became a subsidiary of Fujitsu), for two > reasons having to do with IBM not walking away from the S/360 family: a little history drift ... IBM communication group had corporate strategic ownership of everything that crossed the datacenter walls and was fiercely fighting off client/server and distributed computing (trying to preserve its dumb terminal paradigm). Late 80s, a senior disk engineer got a talk scheduled at a world-wide, internal, annual communication group conference supposedly on 3174 performance but opened the talk with statement that the communication group was going to be responsible for the demise of the disk division; the disk division was seeing data fleeing datacenter to more distributed computing friendly platforms with drops in disk sales. The disk division had tried to come up with a number of solutions, but they were constantly being vetoed by the communication group. One of the disk division executive's (partial) countermeasure was investing in distributed computing startups that would use IBM disks (and would periodically ask us to drop in on investments to see if we could help). It wasn't just disks but whole mainframe industry and a couple years later IBM had one of the largest losses in the history of US corporations and was being reorged into the 13 "baby blues" (a take-off on the AT&T baby blues and its breakup a decade early) in preparation for breaking up the company. https://web.archive.org/web/20101120231857/http://www.time.com/time/magazine/article/0,9171,977353,00.html https://content.time.com/time/subscriber/article/0,33009,977353-1,00.html We had already left IBM but get a call from the bowels of Armonk (corporate hdqtrs) asking if we could help with the breakup. Before we get started, the board brings in the former AMEX president as CEO to try and save the company, who (somewhat) reverses the breakup. note AMEX had been in competition with KKR for LBO (private-equity) take-over of RJR and KKR wins, it then runs into some difficulties and hires away AMEX president to help https://en.wikipedia.org/wiki/Barbarians_at_the_Gate:_The_Fall_of_RJR_Nabisco later as IBM CEO, uses some of the same methods used at RJR: https://web.archive.org/web/20181019074906/http://www.ibmemployee.com/RetirementHeist.shtml In the 80s, IBM mainframe hardware was majority of IBM revenue but by the turn of the century it was a few percent of revenue and dropping. Around 2010-2013, mainframe hardware was a couple percent of IBM revenue and still dropping, although the mainframe group was 25% of revenue (and 40% of profit) ... aka software and services. ... IBM was turning into a financial engineering company IBM deliberately misclassified mainframe sales to enrich execs, lawsuit claims. Lawsuit accuses Big Blue of cheating investors by shifting systems revenue to trendy cloud, mobile tech https://www.theregister.com/2022/04/07/ibm_securities_lawsuit/ IBM has been sued by investors who claim the company under former CEO Ginni Rometty propped up its stock price and deceived shareholders by misclassifying revenues from its non-strategic mainframe business - and moving said sales to its strategic business segments - in violation of securities regulations. flash-back: mid-80s, the communication group had been blocking release of mainframe TCP/IP ... but when that was reversed, it changed its tactic and said that since they had strategic ownership of everything that crossed datacenter walls, it had to be released through them; what shipped got aggregate of 44kbut/sec using nearly whole 3090 processor. I then add support for RFC1044 and in some tuning tests at Cray Research between Cray and 4341, got sustained 4341 channel media throughput using only modest amount of 4341 processor (something like 500 times improvement in bytes moved per instruction executed). -- virtualization experience starting Jan1968, online at home since Mar1970
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What is an N-bit machine? jgd@cix.co.uk (John Dallman) - 2024-11-28 15:31 +0000
Re: What is an N-bit machine? scott@slp53.sl.home (Scott Lurndal) - 2024-11-28 16:33 +0000
Re: What is an N-bit machine? Michael S <already5chosen@yahoo.com> - 2024-11-28 18:55 +0200
Re: What is an N-bit machine? John Levine <johnl@taugh.com> - 2024-11-30 02:37 +0000
Re: What is an N-bit machine? Stephen Fuld <sfuld@alumni.cmu.edu.invalid> - 2024-11-29 22:30 -0800
Re: What is an N-bit machine? John Levine <johnl@taugh.com> - 2024-11-30 19:40 +0000
Re: What is an N-bit machine? Michael S <already5chosen@yahoo.com> - 2024-11-30 22:38 +0200
Re: What is an N-bit machine? "Paul A. Clayton" <paaronclayton@gmail.com> - 2024-12-01 11:23 -0500
Re: What is an N-bit machine? scott@slp53.sl.home (Scott Lurndal) - 2024-12-01 19:52 +0000
Re: What is an N-bit machine? mitchalsup@aol.com (MitchAlsup1) - 2024-11-30 22:39 +0000
Re: What is an N-bit machine? Thomas Koenig <tkoenig@netcologne.de> - 2024-12-01 08:19 +0000
Re: What is an N-bit machine? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2024-12-01 08:35 +0000
Re: What is an N-bit machine? Terje Mathisen <terje.mathisen@tmsw.no> - 2024-12-02 09:48 +0100
Re: What is an N-bit machine? "Brian G. Lucas" <bagel99@gmail.com> - 2024-12-02 19:56 -0500
Re: What is an N-bit machine? Stephen Fuld <sfuld@alumni.cmu.edu.invalid> - 2024-12-03 00:01 -0800
Re: What is an N-bit machine? antispam@fricas.org (Waldek Hebisch) - 2024-12-15 18:20 +0000
Keeping other stuff with addresses (was: What is an N-bit machine?) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2024-11-30 06:28 +0000
Re: Keeping other stuff with addresses (was: What is an N-bit machine?) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2024-11-30 11:35 +0000
Re: Keeping other stuff with addresses (was: What is an N-bit machine?) Thomas Koenig <tkoenig@netcologne.de> - 2024-11-30 11:58 +0000
Re: Keeping other stuff with addresses (was: What is an N-bit machine?) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2024-11-30 16:57 +0000
Re: Keeping other stuff with addresses (was: What is an N-bit machine?) Michael S <already5chosen@yahoo.com> - 2024-11-30 19:32 +0200
Re: Keeping other stuff with addresses (was: What is an N-bit machine?) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2024-11-30 18:08 +0000
Re: Keeping other stuff with addresses (was: What is an N-bit machine?) Michael S <already5chosen@yahoo.com> - 2024-11-30 20:28 +0200
Re: Keeping other stuff with addresses (was: What is an N-bit machine?) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2024-12-01 09:28 +0000
Re: Keeping other stuff with addresses (was: What is an N-bit machine?) Thomas Koenig <tkoenig@netcologne.de> - 2024-12-01 14:03 +0000
Re: Keeping other stuff with addresses David Schultz <david.schultz@earthlink.net> - 2024-12-01 08:15 -0600
Re: Keeping other stuff with addresses Thomas Koenig <tkoenig@netcologne.de> - 2024-12-01 14:40 +0000
Re: Keeping other stuff with addresses mitchalsup@aol.com (MitchAlsup1) - 2024-12-04 02:19 +0000
Re: Keeping other stuff with addresses John Levine <johnl@taugh.com> - 2024-12-04 03:25 +0000
Re: Keeping other stuff with addresses (was: What is an N-bit machine?) Tim Rentsch <tr.17687@z991.linuxsc.com> - 2024-12-01 07:32 -0800
Re: Keeping other stuff with addresses (was: What is an N-bit machine?) Thomas Koenig <tkoenig@netcologne.de> - 2024-12-01 17:53 +0000
Re: Keeping other stuff with addresses (was: What is an N-bit machine?) Michael S <already5chosen@yahoo.com> - 2024-12-01 20:05 +0200
Re: Keeping other stuff with addresses EricP <ThatWouldBeTelling@thevillage.com> - 2024-12-01 18:16 -0500
Re: Keeping other stuff with addresses (was: What is an N-bit machine?) Brett <ggtgp@yahoo.com> - 2024-12-01 20:02 +0000
Re: Keeping other stuff with addresses (was: What is an N-bit machine?) Tim Rentsch <tr.17687@z991.linuxsc.com> - 2024-12-31 08:54 -0800
Re: Keeping other stuff with addresses (was: What is an N-bit machine?) Thomas Koenig <tkoenig@netcologne.de> - 2025-01-01 15:28 +0000
Re: Keeping other stuff with addresses (was: What is an N-bit machine?) Tim Rentsch <tr.17687@z991.linuxsc.com> - 2025-01-01 17:39 -0800
Re: Keeping other stuff with addresses (was: What is an N-bit machine?) Thomas Koenig <tkoenig@netcologne.de> - 2025-01-02 09:59 +0000
Re: Keeping other stuff with addresses (was: What is an N-bit machine?) Tim Rentsch <tr.17687@z991.linuxsc.com> - 2025-01-08 10:00 -0800
Re: Keeping other stuff with addresses (was: What is an N-bit machine?) Thomas Koenig <tkoenig@netcologne.de> - 2025-01-08 19:18 +0000
Re: Keeping other stuff with addresses (was: What is an N-bit machine?) Tim Rentsch <tr.17687@z991.linuxsc.com> - 2025-01-27 17:05 -0800
Re: Keeping other stuff with addresses David Brown <david.brown@hesbynett.no> - 2025-01-28 08:30 +0100
Re: Keeping other stuff with addresses Thomas Koenig <tkoenig@netcologne.de> - 2025-02-02 08:37 +0000
Re: Keeping other stuff with addresses Terje Mathisen <terje.mathisen@tmsw.no> - 2024-12-02 17:10 +0100
Re: Keeping other stuff with addresses Tim Rentsch <tr.17687@z991.linuxsc.com> - 2024-12-31 08:46 -0800
Re: Keeping other stuff with addresses (was: What is an N-bit machine?) John Levine <johnl@taugh.com> - 2024-11-30 19:12 +0000
What is an N-bit machine? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2024-12-01 08:41 +0000
Re: What is an N-bit machine? scott@slp53.sl.home (Scott Lurndal) - 2024-12-01 15:52 +0000
Re: What is an N-bit machine? antispam@fricas.org (Waldek Hebisch) - 2024-12-16 22:39 +0000
Re: Keeping other stuff with addresses (was: What is an N-bit machine?) Thomas Koenig <tkoenig@netcologne.de> - 2024-11-30 22:06 +0000
Re: Keeping other stuff with addresses (was: What is an N-bit machine?) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2024-12-01 08:38 +0000
Re: Keeping other stuff with addresses (was: What is an N-bit machine?) scott@slp53.sl.home (Scott Lurndal) - 2024-11-30 17:57 +0000
Re: Keeping other stuff with addresses (was: What is an N-bit machine?) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2024-12-01 09:38 +0000
Re: Keeping other stuff with addresses "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-12-01 15:22 -0800
Re: Keeping other stuff with addresses mitchalsup@aol.com (MitchAlsup1) - 2024-12-02 01:26 +0000
Re: Keeping other stuff with addresses "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-12-01 20:12 -0800
Re: Keeping other stuff with addresses "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-12-02 16:54 -0800
Re: Keeping other stuff with addresses Stefan Monnier <monnier@iro.umontreal.ca> - 2024-12-03 11:51 -0500
Re: Keeping other stuff with addresses John Levine <johnl@taugh.com> - 2024-12-03 18:19 +0000
Re: Keeping other stuff with addresses Stefan Monnier <monnier@iro.umontreal.ca> - 2024-12-03 13:46 -0500
Re: Keeping other stuff with addresses John Levine <johnl@taugh.com> - 2024-12-03 23:33 +0000
Re: Keeping other stuff with addresses Stefan Monnier <monnier@iro.umontreal.ca> - 2024-12-03 18:52 -0500
Re: Keeping other stuff with addresses mitchalsup@aol.com (MitchAlsup1) - 2024-12-04 02:36 +0000
Re: Keeping other stuff with addresses Thomas Koenig <tkoenig@netcologne.de> - 2024-12-04 06:29 +0000
Re: Keeping other stuff with addresses Stefan Monnier <monnier@iro.umontreal.ca> - 2024-12-04 10:32 -0500
Re: Keeping other stuff with addresses mitchalsup@aol.com (MitchAlsup1) - 2024-12-04 19:47 +0000
Re: Keeping other stuff with addresses Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2024-12-04 15:47 -0800
Re: Keeping other stuff with addresses scott@slp53.sl.home (Scott Lurndal) - 2024-12-04 16:31 +0000
Re: bytes, Keeping other stuff with addresses John Levine <johnl@taugh.com> - 2024-12-05 00:39 +0000
unaligned load/store (was: Re: Keeping other stuff with addresses) Jonathan Thornburg <jonathan@gold.bkis-orchard.net> - 2024-12-21 23:22 +0000
Re: unaligned load/store mitchalsup@aol.com (MitchAlsup1) - 2024-12-22 01:27 +0000
Re: unaligned load/store Thomas Koenig <tkoenig@netcologne.de> - 2024-12-22 10:01 +0000
Re: unaligned load/store anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2024-12-22 11:06 +0000
Re: unaligned load/store jgd@cix.co.uk (John Dallman) - 2024-12-22 11:42 +0000
Re: unaligned load/store "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-12-22 19:41 -0800
Re: unaligned load/store Thomas Koenig <tkoenig@netcologne.de> - 2024-12-22 21:04 +0000
Re: unaligned load/store mitchalsup@aol.com (MitchAlsup1) - 2024-12-22 23:32 +0000
Re: unaligned load/store Stefan Monnier <monnier@iro.umontreal.ca> - 2024-12-26 13:38 -0500
Re: unaligned load/store George Neuner <gneuner2@comcast.net> - 2024-12-26 16:31 -0500
Re: unaligned load/store mitchalsup@aol.com (MitchAlsup1) - 2024-12-26 21:59 +0000
Re: unaligned load/store "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-12-26 14:05 -0800
Re: unaligned load/store (was: Re: Keeping other stuff with addresses) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2024-12-22 10:33 +0000
Re: bits and bytes, Keeping other stuff with addresses John Levine <johnl@taugh.com> - 2024-12-04 03:39 +0000
Re: bits and bytes, Keeping other stuff with addresses Stefan Monnier <monnier@iro.umontreal.ca> - 2024-12-04 10:36 -0500
Re: Keeping other stuff with addresses mitchalsup@aol.com (MitchAlsup1) - 2024-12-03 19:22 +0000
Re: Keeping other stuff with addresses "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-12-03 17:03 -0800
Re: Keeping other stuff with addresses "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-12-03 16:56 -0800
Re: Keeping other stuff with addresses Stefan Monnier <monnier@iro.umontreal.ca> - 2024-12-04 10:37 -0500
Re: Keeping other stuff with addresses Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2024-12-03 17:43 -0800
Re: Keeping other stuff with addresses mitchalsup@aol.com (MitchAlsup1) - 2024-12-04 02:42 +0000
Re: What is an N-bit machine? Thomas Koenig <tkoenig@netcologne.de> - 2024-11-28 17:56 +0000
Re: What is an N-bit machine? mitchalsup@aol.com (MitchAlsup1) - 2024-11-28 19:02 +0000
Re: What is an N-bit machine? Brett <ggtgp@yahoo.com> - 2024-11-28 19:39 +0000
Re: What is an N-bit machine? Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-11-28 21:42 +0000
Re: What is an N-bit machine? jgd@cix.co.uk (John Dallman) - 2024-11-28 22:08 +0000
Re: What is an N-bit machine? Lynn Wheeler <lynn@garlic.com> - 2024-11-28 12:44 -1000
Re: What is an N-bit machine? jgd@cix.co.uk (John Dallman) - 2024-11-28 22:58 +0000
IBM and Amdahl history (Re: What is an N-bit machine?) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2024-11-29 07:22 +0000
Re: IBM and Amdahl history (Re: What is an N-bit machine?) Lynn Wheeler <lynn@garlic.com> - 2024-11-29 08:24 -1000
Re: IBM and Amdahl history (Re: What is an N-bit machine?) scott@slp53.sl.home (Scott Lurndal) - 2024-11-29 18:29 +0000
Re: IBM and Amdahl history (Re: What is an N-bit machine?) Lynn Wheeler <lynn@garlic.com> - 2024-11-29 11:51 -1000
Re: IBM and Amdahl history (Re: What is an N-bit machine?) Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-11-29 21:51 +0000
Re: IBM and Amdahl history (Re: What is an N-bit machine?) scott@slp53.sl.home (Scott Lurndal) - 2024-11-30 17:45 +0000
Re: IBM and Amdahl history (Re: What is an N-bit machine?) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2024-11-30 18:19 +0000
Re: IBM and Amdahl history (Re: What is an N-bit machine?) jgd@cix.co.uk (John Dallman) - 2024-11-30 22:19 +0000
Re: IBM and Amdahl history (Re: What is an N-bit machine?) Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-11-30 23:21 +0000
Re: What is an N-bit machine? Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-11-29 02:17 +0000
Re: What is an N-bit machine? Brett <ggtgp@yahoo.com> - 2024-11-30 01:29 +0000
Re: market power, What is an N-bit machine? John Levine <johnl@taugh.com> - 2024-11-30 02:42 +0000
Re: What is an N-bit machine? Lynn Wheeler <lynn@garlic.com> - 2024-11-29 17:42 -1000
Re: What is an N-bit machine? mitchalsup@aol.com (MitchAlsup1) - 2024-11-28 19:01 +0000
Re: What is an N-bit machine? Lynn Wheeler <lynn@garlic.com> - 2024-11-28 11:45 -1000
Re: What is an N-bit machine? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2024-11-29 08:03 +0000
Re: What is an N-bit machine? Thomas Koenig <tkoenig@netcologne.de> - 2024-11-29 19:17 +0000
Re: What is an N-bit machine? Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-12-22 21:37 +0000
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