From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Mackerras MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Message-ID: <14782.63504.101500.256357@argo.linuxcare.com.au> Date: Wed, 13 Sep 2000 14:44:16 +1100 (EST) To: mlan@cpu.lu Cc: linuxppc-dev@lists.linuxppc.org Subject: Re: sysctl support for ICTC In-Reply-To: <200009122127.XAA00922@piglet.grunz.lu> References: <20000912205547.30777@192.168.1.10> <200009122127.XAA00922@piglet.grunz.lu> Reply-To: paulus@linuxcare.com.au Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: Michel Lanners writes: > In the idle task, the processor (if supporting sleep) is put to either > NAP or DOZE mode (see arch/ppc/kernel/idle.c). NAP mode seems to save > more power, but there's no snooping. Don't know whether that would be a > problem... but I guess it could. Anyway, if somebody wants to > experiment, NAP can be enabled with > /proc/sys/kernel/powersave-nap. When I tried on my 1999 G3 powerbook, it seemed to be that it used more power in nap mode than in doze mode, so I leave it in doze mode. Paul. -- Paul Mackerras, Senior Open Source Researcher, Linuxcare, Inc. +61 2 6262 8990 tel, +61 2 6262 8991 fax paulus@linuxcare.com.au, http://www.linuxcare.com.au/ Linuxcare. Support for the revolution. ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/