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- Path: sparky!uunet!stanford.edu!snorkelwacker.mit.edu!ai-lab!zurich.ai.mit.edu!feeley
- From: feeley@zurich.ai.mit.edu (Marc Feeley)
- Newsgroups: comp.lang.scheme
- Subject: Re: Are interpreters now as fast as compiled code used to be?
- Date: 15 Dec 92 15:30:31
- Organization: M.I.T. Artificial Intelligence Lab.
- Lines: 24
- Message-ID: <FEELEY.92Dec15153031@zohar.ai.mit.edu>
- References: <4051@mitech.com> <FEELEY.92Dec14215701@zohar.ai.mit.edu> <4067@mitech.com>
- NNTP-Posting-Host: zohar.ai.mit.edu
- In-reply-to: gjc@mitech.com's message of 15 Dec 92 10:45:46 GMT
-
- In article <4067@mitech.com> gjc@mitech.com (George J. Carrette) writes:
-
- In article <FEELEY.92Dec14215701@zohar.ai.mit.edu>, feeley@zurich.ai.mit.edu (Marc Feeley) writes:
- > If you assume the
- > hardware's performance increases by a factor of 3 every year (which is
- > probably an underestimate right now), it shouldn't take more than 4 or
- > 5 years for the switchover to happen.
-
- Factor of 3 every year is a bit high. That means a factor
- of 59049 over a decade.
-
- Well a factor of 3 for the last decade is clearly not valid but for
- the next 5 years it might be. DEC's Alpha introduced this year (200 MIPS
- or so) is about 3 times faster than last year's HP9000/700 (70 MIPS).
- If next year DEC comes out with their BIPS processor (1000 MIPS) my
- factor of 3 seems about right.
-
- Clearly this increase in performance will level off at some point in
- the future. When that happens the additional factor of 100 or so
- provided by compilers will be more valuable. Note that parallel
- processing does not change the argument because what counts is the
- number of MIPS you can get with your budget.
-
- Marc
-