Re: does cpu_idle() halt CPU?

[Jan Rychter <jan-JAsPCFd0eodBDgjK7y7TUQ@public.gmane.org>]

>>>>> "Matthew" == Matthew Keller <kellermg-aGob3lNJgTKVc3sceRu5cw@public.gmane.org>:
 Matthew> On Thu, 2003-04-03 at 01:47, Karol Kozimor wrote:
 >> Thus wrote Matthew Keller:
 > SGI's XFS is wonderful, AFAICT. Just make sure you have the latest
 > tools and whatnot.
 >>
 >> Are you sure? I am using XFS on both my partitions, both mounted
 >> with noatime, I told syslog not to sync upon write, yet the disk
 >> still keeps spinning up arbitrarily (usually after 30 - 90
 >> seconds). Or perhaps the cause lies somewhere else?  Best regards,

 Matthew> I've got 4 partitions (root, /usr, /home and /var/log) and
 Matthew> everything is copacetic. One thing to note is that I, uh,
 Matthew> don't use syslog on my laptop as disabling it saves my battery
 Matthew> life by 10-15%. Try disabling it and seeing where that leads,
 Matthew> perhaps?

noflushd (http://noflushd.sourceforge.net/ is what I was talking about
when I mentioned a project to hold disk writes when the disk is spun
down.

Unfortunately, the project info page says it doesn't help with
reiserfs. It also seems to be stagnant (but perhaps it just works so
well?).

--J.


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