Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!news.glorb.com!news-out.readnews.com!news-xxxfer.readnews.com!news.misty.com!news.iecc.com!.POSTED!nerds-end From: anton@mips.complang.tuwien.ac.at (Anton Ertl) Newsgroups: comp.compilers Subject: Re: Green Compiler ? Date: Thu, 27 Dec 2012 13:36:28 GMT Organization: Institut fuer Computersprachen, Technische Universitaet Wien Lines: 19 Sender: johnl@iecc.com Approved: comp.compilers@iecc.com Message-ID: <12-12-023@comp.compilers> References: <12-12-010@comp.compilers> <12-12-013@comp.compilers> NNTP-Posting-Host: news.iecc.com X-Trace: leila.iecc.com 1356662033 3975 64.57.183.58 (28 Dec 2012 02:33:53 GMT) X-Complaints-To: abuse@iecc.com NNTP-Posting-Date: Fri, 28 Dec 2012 02:33:53 +0000 (UTC) Keywords: code, performance Posted-Date: 27 Dec 2012 21:33:53 EST X-submission-address: compilers@iecc.com X-moderator-address: compilers-request@iecc.com X-FAQ-and-archives: http://compilers.iecc.com Xref: csiph.com comp.compilers:807 "Nils M Holm" 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/