Re: laptops and journalling filesystems

From: dean gaudet (dean-list-linux-kernel@arctic.org)
Date: Tue Jul 31 2001 - 10:51:43 EST


On Mon, 30 Jul 2001, Justin Guyett wrote:

> On Mon, 30 Jul 2001, Tony Lill wrote:
>
> > Do any of the current batch of journalling filesystems NOT diddle the
> > disk every 5 seconds? I've tried reiser and ext3 and they're both
> > antithetic to spinning down the disk. Any plans to fix this bug in
> > future kernels?
>
> are you sure this is a product of the journal and not the vm? a machine
> with 1gig memory doing nothing (<25% physmem used) and ext2 has disk
> accesses ever few minutes too.

that's not my experience. i use noatime, i've disabled atd and selected
crontab entries, and i've got enough RAM to avoid paging. the disk will
stay spinned down for hours (usually until i touch netscape). the system
is based on redhat 6.1 (2.2 kernel).

-dean

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