From mboxrd@z Thu Jan 1 00:00:00 1970 From: pumpkin Subject: Re: C2, C3 and bus master activity Date: Wed, 20 Jul 2005 21:29:33 +0200 Message-ID: <200507202129.33823.pumpkin@gmx.de> References: <200507192050.28343.pumpkin@gmx.de> <42DD85F3.9050300@tzi.de> <200507201921.43576.pumpkin@gmx.de> Reply-To: pumpkin-Mmb7MZpHnFY@public.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <200507201921.43576.pumpkin-Mmb7MZpHnFY@public.gmane.org> Content-Disposition: inline Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org Hello i have made some experiments and now i'm scared shitless: Removing and reinserting ieee1394, eth1394 and ohic1394 stops all bus master activity, even under X. USB and WLAN are active. Now the CPU stays at C4, a mode which didn't even show up before. Now one battery charge should be enough for 4 hours. IBM says 3 and a half hours. That's why i love linux. Thanks, On Wednesday 20 July 2005 19:21, pumpkin wrote: > Hello > > > Sometimes an active WLAN driver causes bus master activity... > > Inserted USB, removed WLAN and ieee1394. C2/C3-ratio dropps to 10:90 in > console-mode. That's better. I don't mind removing ieee1349, but without > networking the laptop is more or less useless. So i'm f***ed. > > > You also should not use an USB Mouse... > > No USB in use except the 4 root-hubs (the trackpoint is using PS/2). > > > And by the way, what's wrong with 50:50 C2 C3 ? > > This seems pretty normal to me. > > I have seen 10:90 on AthlonXP-systems running XFree. That's what i want, > even if it is a long way to go. > > So i only have 2 problems left: > > - Is it possible to reconfigure WLAN to cause less Bus Master Activity ? (i > will ask the ipw2200 guys and grok the code) > > - and why is the radeon driver causing ffffffff-Activity ? > > Running x without radeon driver is not an option. The radeon driver enables > powerplay, which in turn saves quite a bit. > > > Thanks, > > > > On Tuesday 19 July 2005 22:18, Bob Lees wrote: > > >>Hi > > >> > > >>In a word USB. I don't fully understand why, but if I disable USB then > > >>both my laptops will go into C3 or C4, with USB enabled stays in C2. > > >> > > >>Laptops are Compaq EVO 800c and IBM T42p both running SUSE 9.3 with a > > >> stock SuSE kernel 2.6.11-suse modified > > >> > > >>Bob > > > > ------------------------------------------------------- > > SF.Net email is sponsored by: Discover Easy Linux Migration Strategies > > from IBM. Find simple to follow Roadmaps, straightforward articles, > > informative Webcasts and more! Get everything you need to get up to > > speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click > > _______________________________________________ > > Acpi-devel mailing list > > Acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org > > https://lists.sourceforge.net/lists/listinfo/acpi-devel > > ------------------------------------------------------- > SF.Net email is sponsored by: Discover Easy Linux Migration Strategies > from IBM. Find simple to follow Roadmaps, straightforward articles, > informative Webcasts and more! Get everything you need to get up to > speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click > _______________________________________________ > Acpi-devel mailing list > Acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org > https://lists.sourceforge.net/lists/listinfo/acpi-devel ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click