Re: Green Compiler ?

anton@mips.complang.tuwien.ac.at (Anton Ertl)
Thu, 27 Dec 2012 13:36:28 GMT

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From: anton@mips.complang.tuwien.ac.at (Anton Ertl)
Newsgroups: comp.compilers
Date: Thu, 27 Dec 2012 13:36:28 GMT
Organization: Institut fuer Computersprachen, Technische Universitaet Wien
References: 12-12-010 12-12-013
Keywords: code, performance
Posted-Date: 27 Dec 2012 21:33:53 EST

"Nils M Holm" <nmh@t3x.org> writes:
>In principle, I would say that higher execution speed equals more
>grenn-ness. Less time spent dissipating heat means less energy
>consumed.


If a computer runs only a given set of batch-style programs a given
set of times, yes. But that's not how computers are used. E.g.,
there are games that consume all the resources they are given. If the
game code runs faster, it just means that the game has better FPS, not
that the computer consumes less energy. There are also anti-virus
programs etc., and even for batch-style programs, if they run faster,
one often runs them more often. So it's not so easy.


- anton
--
M. Anton Ertl
anton@mips.complang.tuwien.ac.at
http://www.complang.tuwien.ac.at/anton/


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