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: Peter Dassow Newsgroups: comp.compilers Subject: Re: Green Compiler ? Date: Sat, 29 Dec 2012 09:35:10 +0100 Organization: Arcor Lines: 14 Sender: johnl@iecc.com Approved: comp.compilers@iecc.com Message-ID: <12-12-034@comp.compilers> References: <12-12-010@comp.compilers> <12-12-012@comp.compilers> <12-12-022@comp.compilers> <12-12-028@comp.compilers> NNTP-Posting-Host: news.iecc.com Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit X-Trace: leila.iecc.com 1356817989 96063 64.57.183.58 (29 Dec 2012 21:53:09 GMT) X-Complaints-To: abuse@iecc.com NNTP-Posting-Date: Sat, 29 Dec 2012 21:53:09 +0000 (UTC) Keywords: performance, architecture Posted-Date: 29 Dec 2012 16:53:09 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:818 On 28.12.2012 08:35, Hans-Peter Diettrich wrote: > > Please note that most CMOS processor power consumption results from > switching (stray) capacities, and only a small percentage for leak > currents. E.g. a register or gate consumes such power whenever a bit is > changed, and almost nothing when it has reached an stable state. > So using extensively registers instead of "conventional" memory (e.g. DDR-RAM, memory outside a CPU) will save energy (if equal functionality is given) ? Regards Peter