From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ruediger Otte Subject: Why don't use C2/C3 with high latency? Date: Fri, 28 Mar 2003 19:22:45 +0100 (CET) Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <20030328182245.6296E1B965@marcos.python.subname.de> Mime-Version: 1.0 Content-Type: TEXT/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Return-path: Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org Hi, on my system (Gigabyte GA-7VTXH, VIA KT266A Chipset, Athlon XP 1600+) the C2 processor powerstate have not been enabled until I set the ACPI_PROCESSOR_MAX_C2_LATENCY to a value above 100. The system runs quite normal after this change and consumes much less power than before. Also the processor temperature goes down from 48=B0C to under 35=B0C when idle. So why is the MAX_C2_LATENCY set to this value? Is it possible to optimize the use of this high latency C2 to only use it when the system is _really_ idle?=20 --=20 R=FCdiger ------------------------------------------------------- This SF.net email is sponsored by: The Definitive IT and Networking Event. Be There! NetWorld+Interop Las Vegas 2003 -- Register today! http://ads.sourceforge.net/cgi-bin/redirect.pl?keyn0001en