Sujet : Re: Continuations
De : johnl (at) *nospam* taugh.com (John Levine)
Groupes : comp.archDate : 16. Jul 2024, 00:52:28
Autres entêtes
Organisation : Taughannock Networks
Message-ID : <v74cns$t8j$1@gal.iecc.com>
References : 1 2 3 4
User-Agent : trn 4.0-test77 (Sep 1, 2010)
According to EricP <
ThatWouldBeTelling@thevillage.com>:
We were playing with an IBM R6000 around 1990 which was supposed to
be this fast risc machine but we found it ran slower than our VAX.
We disassembled the code and found out that instead of a normal
decrement/increment stack it used a linked list of heap allocated
objects. Every call did a malloc and every return did a free. All the
hardware speed improvement had been squandered on this completely
unnecessary ABI overhead. ...
This could also have been a RT PC as our port project was
running around 1987 and straddled the RS6000 launch in 1990.
(so I might have got my 'R's mixed up.)
The RT was pretty fast but AIX suffered from running atop a virtual
machine system that was originally intended to support multiple operating
systems and in retrospect did more than it really needed to.
-- Regards,John Levine, johnl@taugh.com, Primary Perpetrator of "The Internet for Dummies",Please consider the environment before reading this e-mail. https://jl.ly
Continuations
Re: Continuations