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Re: Boot poster challenge



On Sun, 2004-11-21 at 11:28 -0500, Daniel Veillard wrote:
>   Let's see ... Suppose we isolate all the resources we need to load quickly,
> we have a list of files, hopefully all from the same / partition, 

we have that ;-)

> while in
> single user mode and without concurrent activity:
> 
> for foo in $list:
>   cp $foo $foo.new
> for foo in $list:
>   rm $foo
> for foo in $list:
>   mv $foo.new $foo
> 
> We could expect filesystems to allocate the new blocks (data and possibly
> metadata) more or less sequentially on disk. What would led the filesystem
> code to not be sequential (most of the time assuming a single block device
> underneath) 

nope this doesn't work; while each file individually will be sequential,
they are not sequential on disk. Note: teh files already aren't
fragmented, at least on my testsystem. 

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