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

[Alan McKinnon <alan.mckinnon@gmail.com>]

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 :-)

-- 
alan dot mckinnon at gmail dot com