Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.os.linux.advocacy > #210983
| From | Grant Edwards <invalid@invalid.invalid> |
|---|---|
| Newsgroups | comp.os.linux.advocacy, comp.os.linux.embedded, uk.comp.os.linux |
| Subject | Re: Google set to make its own energy efficient ARM Server chip |
| Date | 2013-12-16 02:08 +0000 |
| Organization | PANIX Public Access Internet and UNIX, NYC |
| Message-ID | <l8lnaf$a78$1@reader1.panix.com> (permalink) |
| References | <kW3ru.438$QM7.294@fx15.am4> <l8infh$2o5$1@reader1.panix.com> <OZ5ru.15342$az1.6188@fx34.am4> <l8lbic$g6q$2@reader1.panix.com> <03sru.770233$i75.479117@fx03.iad> |
Cross-posted to 3 groups.
On 2013-12-16, unruh <unruh@invalid.ca> wrote:
> Actually I suspect it is far higher than that. The theoretical maximum
> is completely reversible computing, which should in principle create no
> heat at all. That tends to be very slow. Next is to argue that each
> erasure costs kT of energy.
> Again they are far far far less efficient than that. Even 1kT per bit
> operation would imply only 10^-21J/bit operation. Assuming 64 bit words
> and 10GHz operation, that would still only imply 10^(-9) watts of power
> consumption. Instead what we get is something like 100W so, that is
> 99.99999999% of the power going into heat rather than useful
> computations.
>> 100% of the power in a data center turns into heat.
>
> Actually no, some of it goes into reducing the entropy of the system.
But surely that's only temporary. Does entropy continue to be reduced
indefinitly for as long as a computer is being run? Or does it reach
some sort of "average" level and from then on you're just
transitioning between different configurations of similar entropy?
--
Grant Edwards grant.b.edwards Yow! You can't hurt me!!
at I have an ASSUMABLE
gmail.com MORTGAGE!!
Back to comp.os.linux.advocacy | Previous | Next — Previous in thread | Next in thread | Find similar
Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-14 21:18 +0000
Re: Google set to make its own energy efficient ARM Server chip Grant Edwards <invalid@invalid.invalid> - 2013-12-14 22:52 +0000
Re: Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-14 23:38 +0000
Re: Google set to make its own energy efficient ARM Server chip Steve Carroll <fretwizzen@gmail.com> - 2013-12-14 16:01 -0800
Re: Google set to make its own energy efficient ARM Server chip Les Cargill <lcargill99@comcast.com> - 2013-12-14 18:16 -0600
Re: Google set to make its own energy efficient ARM Server chip Grant Edwards <invalid@invalid.invalid> - 2013-12-15 22:47 +0000
Re: Google set to make its own energy efficient ARM Server chip unruh <unruh@invalid.ca> - 2013-12-16 00:45 +0000
Re: Google set to make its own energy efficient ARM Server chip Grant Edwards <invalid@invalid.invalid> - 2013-12-16 02:08 +0000
Re: Google set to make its own energy efficient ARM Server chip unruh <unruh@invalid.ca> - 2013-12-16 03:30 +0000
Re: Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-16 08:38 +0000
Re: Google set to make its own energy efficient ARM Server chip Grant Edwards <invalid@invalid.invalid> - 2013-12-16 15:16 +0000
Re: Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-16 08:38 +0000
Re: Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-16 08:38 +0000
Re: Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-16 08:38 +0000
Re: Google set to make its own energy efficient ARM Server chip unruh <unruh@invalid.ca> - 2013-12-16 17:51 +0000
Re: Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-16 21:56 +0000
Re: Google set to make its own energy efficient ARM Server chip unruh <unruh@invalid.ca> - 2013-12-17 00:10 +0000
Re: Google set to make its own energy efficient ARM Server chip Steve Carroll <fretwizzen@gmail.com> - 2013-12-16 16:23 -0800
Re: Google set to make its own energy efficient ARM Server chip Lusotec <nomail@nomail.not> - 2013-12-17 03:53 +0000
Re: Google set to make its own energy efficient ARM Server chip Snit <usenet@gallopinginsanity.com> - 2013-12-16 21:10 -0700
Re: Google set to make its own energy efficient ARM Server chip Steve Carroll <fretwizzen@gmail.com> - 2013-12-16 20:25 -0800
Re: Google set to make its own energy efficient ARM Server chip GreyCloud <mist@cumulus.com> - 2013-12-16 22:40 -0700
Re: Google set to make its own energy efficient ARM Server chip Steve Carroll <fretwizzer@gmail.com> - 2013-12-16 20:19 -0800
Re: Google set to make its own energy efficient ARM Server chip chrisv <chrisv@nospam.invalid> - 2013-12-17 07:21 -0600
Re: Google set to make its own energy efficient ARM Server chip Chris Ahlstrom <OFeem1987@teleworm.us> - 2013-12-17 08:35 -0500
Re: Google set to make its own energy efficient ARM Server chip William Poaster <wp@induh-vidual.net> - 2013-12-17 13:30 +0000
Re: Google set to make its own energy efficient ARM Server chip Lusotec <nomail@nomail.not> - 2013-12-17 15:55 +0000
Re: Google set to make its own energy efficient ARM Server chip Lusotec <nomail@nomail.not> - 2013-12-17 03:30 +0000
Re: Google set to make its own energy efficient ARM Server chip unruh <unruh@invalid.ca> - 2013-12-17 03:48 +0000
Re: Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-17 18:44 +0000
Re: Google set to make its own energy efficient ARM Server chip unruh <unruh@invalid.ca> - 2013-12-17 19:42 +0000
Re: Google set to make its own energy efficient ARM Server chip unruh <unruh@invalid.ca> - 2013-12-17 19:40 +0000
Re: Google set to make its own energy efficient ARM Server chip Les Cargill <lcargill99@comcast.com> - 2013-12-14 18:15 -0600
csiph-web