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Author: Anne & Lynn WheelerAnne & Lynn Wheeler
Date: Dec 25, 2006 23:42
re:
http://www.garlic.com/~lynn/2006v.html#43 The Future of CPUs: What's After Multi-Core
http://www.garlic.com/~lynn/2006w.html#46 The Future of CPUs: What's After Multi-Core?
lots of collected posts mentioning (global) page replacement
http://www.garlic.com/~lynn/subtopic.html#wsclock
a little more global LRU history. "Swapper" referred to what I've
called "big pages". The issue in "big pages" was how to collect
multiple pages (originally a 3380 tracks worth, ten pages) from the
same address space for transfer in single operation. It was much
easier to do something like "local" LRU ... to get a whole track of
pages (from the same address space) for a single track
transfer. however, that severely degraded performance with the
management of the pages in real memory.
from long ago and far away ... there was a lot of performance
measurements showing much improved performance by putting global
LRU back in ....
From: wheeler
Date: 01/19/86 12:29:38
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Author: Stan BarrStan Barr
Date: Dec 25, 2006 21:57
On Mon, 25 Dec 2006 20:06:32 GMT, Larry Elmore verizon.spammenot.net>
wrote:
>> In article <0001HW.C1B4464A006CE566F0203648@ news.verizon.net>,
>> Randy Howard FOOverizonBAR.net> wrote:
>>> I'm trying to think of a single example of a CPU without some form of
>>> jmp instruction. :-)
>>
>> Perhaps a LISP machine.
>
>No, they had them as well. They were tagged stack machine
>architectures. Since even the Lisp Machines' device drivers were
>written in Lisp, I think their dialect of Lisp must have had a goto.
>Common Lisp has a GO special form, though it's lexically scoped.
Hardware Forth implementations typically provide only a CALL/RET and
some sort of IF, ELSE, NEXT construct for loops - forms of JMP - but
not usually any programmer useable JMP, although it's normally possible
to simulate one if you feel the need.
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Author: Stan BarrStan Barr
Date: Dec 25, 2006 21:57
On Mon, 25 Dec 2006 20:06:32 GMT, Larry Elmore verizon.spammenot.net>
wrote:
>> In article <0001HW.C1B4464A006CE566F0203648@ news.verizon.net>,
>> Randy Howard FOOverizonBAR.net> wrote:
>>> I'm trying to think of a single example of a CPU without some form of
>>> jmp instruction. :-)
>>
>> Perhaps a LISP machine.
>
>No, they had them as well. They were tagged stack machine
>architectures. Since even the Lisp Machines' device drivers were
>written in Lisp, I think their dialect of Lisp must have had a goto.
>Common Lisp has a GO special form, though it's lexically scoped.
Hardware Forth implementations typically provide only a CALL/RET and
some sort of IF, ELSE, NEXT construct for loops - forms of JMP - but
not usually any programmer useable JMP, although it's normally possible
to simulate one if you feel the need.
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Author: krwkrw
Date: Dec 25, 2006 13:09
In article s942.apx1.sbo.ma.dialup.rcn.com>,
jmfbahciv@aol.com says...
> In article news.individual.net>,
> krw att.bizzzz> wrote:
>>In article s952.apx1.sbo.ma.dialup.rcn.com>,
>>jmfbahciv@aol.com says...
>>> In article news.individual.net>,
>>> krw att.bizzzz> wrote:
>>>>In article s1015.apx1.sbo.ma.dialup.rcn.com>,
>>>>jmfbahciv@aol.com says...
>>>>> In article <20061221152357.0c2de36b.steveo@ eircom.net>,
>>>>> Steve O'Hara-Smith eircom.net> wrote:
>>>>>>On Thu, 21 Dec 06 14:04:58 GMT
>>>>>>jmfbahciv@ aol.com wrote:
>>>>>>
>>>>>>> That's how the word is spelled. I'm pretty sure if I had
>>>>>>> signed the checks and stuff with the word executor, it
>>>>>>____________________________________________^^^^^^^^
>>>>>>
>>>>>> I still recall the first time I met that word with that meaning, it ...
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Author: Anne & Lynn WheelerAnne & Lynn Wheeler
Date: Dec 25, 2006 09:23
Anne & Lynn Wheeler garlic.com> writes:
> ... ascii 3101 glass tty ... had block-mode ... intenally there was
> enhancement to PVM (started out emulating remote 3270s over the
> internal network ... sort of tn3270) ... for home terminal program
> ... starting late '79. The option then was to either come into the
> host as straight glass tty or as emulated 3270 (with the 3101 switched
> to block-mode) ... where PVM 3101 support played all sorts of tricks
> on optimizing what was already on the screen and just what had to be
> sent.
re:
http://www.garlic.com/~lynn/2006y.html#0 Why so little parallelism?
a little more archeological cross-over from thread in comp.arch
for other historical reference, when i was undergraduate in the 60s,
i had added the original tty/ascii terminal support to cp67 ... misc.
related postings about that somewhat leading to univ. project to
build our own mainframe clone controller
http://www.garlic.com/~lynn/subtopic.html#360pcm
other old email ... besides what was included in comp.arch posting
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Author: jmfbahcivjmfbahciv
Date: Dec 25, 2006 06:33
In article <0s8to2hi6rq7hu6qtnur1kn3cj9kqtuqcl@ 4ax.com>,
Al Balmer att.net> wrote:
>On Sat, 23 Dec 06 14:29:34 GMT, jmfbahciv@ aol.com wrote:
>
>>> However,
>>>if you keep track of the lines between planes, you can once again
>>>get crossed lines which detract from readability - which would give
>>>us one more argument against the philosophy of wanton function calls
>>>which the Structured Programming zealots were so stuck on.
>>
>>You cannot have a function call without an implied goto instruction
>>at machine level. You cannot have a sort without a goto somewhere
>>in its bowels.
>
>This is an old argument, and true as far as it goes, but it misses the
>point. Gotos don't confuse the computer, they confuse the programmer,
>and should (with exceptions) be avoided at the programmer's...
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Author: Steve O'Hara-SmithSteve O'Hara-Smith
Date: Dec 25, 2006 00:24
Hi,
I found this wonderful AA Christmas card.
-=[ "We Wish You a Merry Christmas and a Happy New Year! ]=-
-=[ "Bee Fish Ewe a Mare Egrets Moose Ant a Hippo Gnu Deer! ]=- 12/96
.:*~*:._.:*~*:._.:*~*:._.:*~*:._.:*~*:._.:*~*:._.:*~*:._.:*~*:._.:*~*:.
_,._
...
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Author: Steve O'Hara-SmithSteve O'Hara-Smith
Date: Dec 25, 2006 00:24
Hi,
I found this wonderful AA Christmas card.
-=[ "We Wish You a Merry Christmas and a Happy New Year! ]=-
-=[ "Bee Fish Ewe a Mare Egrets Moose Ant a Hippo Gnu Deer! ]=- 12/96
.:*~*:._.:*~*:._.:*~*:._.:*~*:._.:*~*:._.:*~*:._.:*~*:._.:*~*:._.:*~*:.
_,._
...
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