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Date:	Sun, 5 Nov 2006 14:03:09 +0100
From:	"Maurizio Lombardi" <>
Subject: Re: New filesystem for Linux

On 11/4/06, Mikulas Patocka <> wrote:

>free space is organized in lists of free runs
>and converted to bitmap only in case of
>extreme fragmentation.

There is a performance reason to prefer lists of free blocks rather than bitmap?

I read from [Tanenbaum: Operating System, Design and Implementation II
ed. ] that lists are better than bitmap only when disk is almost full.

Maurizio Lombardi
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