From owner-cvs-share  Wed Mar 19 10:11:18 1997
Return-Path: <owner-cvs-share>
Received: (from root@localhost)
          by freefall.freebsd.org (8.8.5/8.8.5) id KAA11835
          for cvs-share-outgoing; Wed, 19 Mar 1997 10:11:18 -0800 (PST)
Received: from godzilla.zeta.org.au (godzilla.zeta.org.au [203.2.228.19])
          by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id KAA11825;
          Wed, 19 Mar 1997 10:11:13 -0800 (PST)
Received: (from bde@localhost) by godzilla.zeta.org.au (8.8.3/8.6.9) id FAA00271; Thu, 20 Mar 1997 05:08:39 +1100
Date: Thu, 20 Mar 1997 05:08:39 +1100
From: Bruce Evans <bde@zeta.org.au>
Message-Id: <199703191808.FAA00271@godzilla.zeta.org.au>
To: cvs-all@freefall.freebsd.org, CVS-committers@freefall.freebsd.org,
        cvs-share@freefall.freebsd.org, obrien@freefall.freebsd.org
Subject: Re: cvs commit:  src/share/doc/FAQ FAQ.sgml
Sender: owner-cvs-share@FreeBSD.ORG
X-Loop: FreeBSD.org
Precedence: bulk

>  Modified:    share/doc/FAQ  FAQ.sgml
>  Log:
>  FreeBSD uses the HALT instruction in its idle loop to save power.

Actually, FreeBSD uses the HLT instruction.  There is no HALT instruction
on i386's.

Currently actually, FreeBSD usually does about 1800 instructions of vm book
keeping at the beginning of the idle loop.  This is too many, and the cpu
doesn't stay halted for as long as it should.

Bruce