[Gllug] Reiserfs faster boot

[Darran D. Rimron-Molloy]

On Sun, 2001-10-07 at 20:32, Rev Simon Rumble wrote:
> On Sat 06 Oct, Nix made the following spurious claims:
> 
> > and it's *much* slower at hole creation
> 
> What exactly is hole creation in filesystem terms?  Excuse my
> ignorance.

When you create a file that contains the same character repeated (ed,
cat /dev/zero into a file - say a couple of megs worth of 00000's ) it
won't take a couple of meg, it takes only a few bytes. That's a hole in
the file-system.

But cat'ing your newly created file still returns multi-millions of 0's
- or whatever.

Then again, how often do you create a hole in a file-system?

Or have I got this wrong - atleast that's what I thought a hole in the
file-system was....

	-Darran

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