Date: Wed, 24 Nov 2010 11:11:53 +0000 From: Bruce Cran <bruce@cran.org.uk> To: Adam Vande More <amvandemore@gmail.com> Cc: David DEMELIER <demelier.david@gmail.com>, Ian Smith <smithi@nimnet.asn.au>, freebsd-questions@freebsd.org Subject: Re: How long laptop battery should live ? Message-ID: <20101124111153.2cb2bfb1@core.draftnet> In-Reply-To: <AANLkTimUfy8T4CwoNsTdcOYK9nyVXPXstUQ6oEMX=knd@mail.gmail.com> References: <20101124024133.07F28106575F@hub.freebsd.org> <20101124144746.H37255@sola.nimnet.asn.au> <AANLkTimUfy8T4CwoNsTdcOYK9nyVXPXstUQ6oEMX=knd@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Tue, 23 Nov 2010 23:17:37 -0600 Adam Vande More <amvandemore@gmail.com> wrote: > IIRC, there where some improvement to HEAD while ago that increased > FreeBSD power usage efficiecy a non-negligible amount. Perhaps those > improvements where MFC'd already, Google around either way as there > are settings to tune which will decrease power consumption. In order to get those savings you need to set hw.acpi.cpu.cx_lowest to C2 or C3. -- Bruce Cran
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20101124111153.2cb2bfb1>