Re: [BackupPC-users] Which FS?

[higuita <higuita@GMX.net>]

Hi all

On Mon, 31 Aug 2009 15:42:50 -0500, Les Mikesell <les...@gm...> wrote:
> And the new directory entry may be all the way across the disk from the 
> existing inode - and far from any other inode in this directory.

	true, but system cache takes care of most directory access, so
	unless you are doing a find, isnt as huge performance hit as
	in windows
 
> And, assuming you have enough disk activity to keep the cache out of 
> date, that 'ls -l' will have to move the disk head to the directory 
> location and then the inode to get the data - if you list many files in 

	wrong, the ls -l doesnt need to move to the files inode to do
	anything, the directory have all the necessary info. in the
	files inodes there is the file data, you only need to go there
	when you need to read that file data

> the same directory that were links to existing files, the head may have 
> to seek all over the place to get the inoded data.

	when you list a directory, you just read the directory inodes,
	if you use a filesystem with index (like reiserfs, xfs and 
	ext3 with the dir_index enabled, etc) the dir of the all dir
	or just one file will take almost the same time, even if
	there are many files on that dir

cya
higuita
-- 
Naturally the common people don't want war... but after all it is the
leaders of a country who determine the policy, and it is always a 
simple matter to drag the people along, whether it is a democracy, or
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Voice or no voice, the people can always be brought to the bidding of
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