*BSD News Article 48554


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From: Terry Lambert <terry@cs.weber.edu>
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Questions suitable for the FAQ
Date: 8 Aug 1995 18:37:39 GMT
Organization: Utah Valley State College, Orem, Utah
Lines: 33
Message-ID: <408atj$bf3@park.uvsc.edu>
References: <DCyAs7.L6y@midway.uchicago.edu> <405nbk$egg@agate.berkeley.edu> <407umr$qsk@atusks02.aut.alcatel.at>
NNTP-Posting-Host: hecate.artisoft.com

ladavac@aut.alcatel.at (Marino Ladavac) wrote:
]
] Jordan K. Hubbard (jkh@violet.berkeley.edu) wrote:
] 
] : >	6. Has anyone done any temperature testing while running FreeBSD?
] : >	   I know linux runs cooler than dos, but have never seen a 
] : >	   mention of FreeBSD.  It seems to run really hot compared to
] 
] : No, but we have done numerous taste tests on blindfolded volunteers who have
] : also had 250 micrograms of LSD-25 administered beforehand.  35% of the
] : volunteers said that FreeBSD tasted sort of orange, whereas Linux tasted like
] : purple haze.  Neither group mentioned any particular variances in temperature
] : that I can remember.  We eventually had to throw the results of this survey
] : out entirely anyway when we found that too many volunteers were wandering out
] : of the room during the tests, thus skewing the results.  I think most
] : of the volunteers are at Apple now, working on their new "scratch and sniff"
] : GUI.  It's a funny old business we're in!
] 
] With all respect due, Jordan, but he might have a point there.  I am not
] certain if FreeBSD halts the CPU in the idle loop.  Linux does, if HALT is
] implemented properly (and kernel checks it on boot-up.)  This practically
] sends the CPU to sleep and reduces consumption (i.e. dissipation) to
] milliwatts.

A very real concern on a portable machine, for instance, when
determining how long a machine will last on its batteries.


                                        Terry Lambert
                                        terry@cs.weber.edu
---
Any opinions in this posting are my own and not those of my present
or previous employers.