[ltp] Fedora on Thinkpads

[Behdad Esfahbod]

On Tue, 11 Nov 2003, Tino Keitel wrote:

> On Mon, Nov 10, 2003 at 04:52:39 -0500, Behdad Esfahbod wrote:
> > On Mon, 10 Nov 2003, Tino Keitel wrote:
> >
> > > On Sun, Nov 09, 2003 at 17:07:26 -0600, Satish Balay wrote:
> > > >
> > > >
> > > > On Sun, 9 Nov 2003, Bert Haskins wrote:
> > > >
> > > > > Could someone give their reasons for moving to Fedora from RedHat 8
> > > > > or 9?
> > > >
> > > > Well I didn't even try using RH9 on a T40. Fedora Core 1 just works.
> > > > I've also upped a 600E to Fedora Core 1.
> > > >
> > > > The reasons for others to do this upgrade could be:
> > > >
> > > > 1. speedstep (as I've indicated in one of my previous posts)
> > > > 2. laptop mode (where IO to disk is buffered - thus letting the disk
> > > >    spin down - when on battery)
> > >
> > > Buffered IO is used in nearly every Linux installation per default, so
> > > this is nothing special. Could anybody give some details about the
> > > laptop mode? Or are they just using ext2 and noflushd?
> >
> > It's a kernel patch, that schedules write backs to whenever the
> > disk is waking up for read access.  Other wise, you get your hard
> > disk always on, as there are always something to write... (access
> > time, ...)
>
> This feature is already present without a patch in the kupdated, and
> this is how noflushd works. But this will only work with ext2, not with
> any of the journaling file systems, since they bypass the kupdated.

When I first read the patch a few months ago, it used to patch
jbd.c too, so is trying to handle that.  And I'm getting my hard
disk sleepy.

> Regards,
> Tino