[ltp] Fedora on Thinkpads

[Tino Keitel]

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.

Regards,
Tino