You also want to look for processes or cron jobs that hit the disk on a regular basis. For many distros, there's a statistics gathering thing that runs hourly (but leaves a daemon that comes alive every 10 minutes or so). This is a frequent culprit.
++ kevin On Fri, May 24, 2002 at 08:56:20PM -0700, Net Llama! wrote: > Bob Raymond wrote: > > This question may have been asked before, and I apologize if it has, but > > my friend has a problem with battery life on his laptop. He only gets > > about > > fifty minutes to an hour in Linux, while in WindeXP, it's more like two > > hours. One thing I notice in Linux is that there's a lot more HD useage > > going on. Could this be because of the ReiserFS that's on there now? > > More likely because his system isn't properly tuned, or he's doing > things that are I/O intensive. I've give 512MB of swap, other wise, > he's going to use up all the physical memory & swap, and then the system > is going to grind to a hault, as it keeps paging in & out of memory. > > > > > He's coming over Sunday so I can install SuSE 8.0 (to replace 7.3) and I > > noticed XFS is one of the options. I know from personal experience that > > it is faster than ReiserFS, but how good is it on the batteries, or is > > the filesystem even the problem? > > The filesystem has little to no effect. I'd wager good money that > windozeXP is not spinning up his HD to 5400rpm, and is halving his CPU > clock speed in order to save power. apm can definitely help with this > stuff in Linux (as could the BIOS, possibly), however the question comes > down to whether he wants performance or battery life. > > Something else to consider is his kernel, which i really doubt was > optimized for a mobile system, or his CPU. > > > > > > > > > specs: > > > > Sager NP5620 > > Intel P4 1.8ghz > > ATI Mobility Radeon 7500 > > 30GB 5400 RPM HD, > > Part. table: > > > > 8mb /boot /dev/hda1 > > That's a wee bit small. I'd give it at least 15MB. > > > > 15GB (approx). / /dev/hda2 > > 256mb (approx). swap /dev/hda3 > > 14GB (approx). /windoze/C /dev/hda3 > > > > 256mb PC2100 DDR > > -- > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > L. Friedman [EMAIL PROTECTED] > Linux Step-by-step & TyGeMo: http://netllama.ipfox.com > > 8:50pm up 36 days, 3:43, 3 users, load average: 0.27, 0.23, 0.37 > > _______________________________________________ > Linux-users mailing list - http://linux-sxs.org/mailman/listinfo/linux-users > Subscribe/Unsubscribe info, Archives,and Digests are located at the above URL. -- Kevin O'Gorman (805) 650-6274 mailto:[EMAIL PROTECTED] Permanent e-mail forwarder: mailto:Kevin.O'[EMAIL PROTECTED] At school: mailto:[EMAIL PROTECTED] Web: http://www.cs.ucsb.edu/~kogorman/index.html Web: http://kosmanor.com/~kevin/index.html "Life is short; eat dessert first!" _______________________________________________ Linux-users mailing list - http://linux-sxs.org/mailman/listinfo/linux-users Subscribe/Unsubscribe info, Archives,and Digests are located at the above URL.
