Re: [gentoo-user] Re: Anybody tried shake defragmenter?

[Volker Armin Hemmann <volkerarmin@googlemail.com>]

On Montag 03 August 2009, Alan McKinnon wrote:
> On Monday 03 August 2009 23:16:05 Grant Edwards wrote:
> > On 2009-08-03, Alan McKinnon <alan.mckinnon@gmail.com> wrote:
> > > On Monday 03 August 2009 23:05:02 Paul Hartman wrote:
> > >> The time-honored way of fixing this is "backup, delete,
> > >> restore". In my case my simple defragmenter is to move a file
> > >> to tmpfs and then move it back to the hard drive. I always do
> > >> this to files I'm about to burn to a CD/DVD to ensure the read
> > >> speed is optimal.
> > >
> > > Until one day someone write a super-duper disk cache algorithm
> > > that delays writes safely, notices that you are putting back
> > > unmodified something you just deleted, then reverts "to be
> > > deleted" flag on the block pointers. meaning that nothing has
> > > changed.
> > >
> > > Lucky for us, I do not believe that such a driver has been
> > > written yet. Unlucky for us, I believe that such a driver is
> > > entirely possible.
> >
> > And actually quite simple once the
> > content-addressable-disk-drive is invented.
>
> We tried that already, it was called WinFS.
>
> Unfortunately, it was an idea ahead of it's time and technology was not
> quite ready for it yet :-)


http://en.wikipedia.org/wiki/Be_File_System

was first and did it.