linux-kernel - Re: Linux source tree size difference issue

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Message-ID: <20130517194419.GA4002@mobil.systemanalysen.net>
Date:	Fri, 17 May 2013 21:44:19 +0200
From:	Roland Eggner <edvx1@...temanalysen.net>
To:	Chris Jones <chrisjones@...n.net.au>
Cc:	linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: Linux source tree size difference issue

On 2013-05-17 Friday at 10:20 +1000 Chris Jones wrote:
> I have cloned the Linux kernel source tree locally. It comes in at
> approx. ~500MB. I have then created another git repository to push the
> source to for my own work. I rsynced the tree locally to another
> directory and now I am currently pushing it in to the new repository and
> it's at 58% and is already at 525MB.
> 
> I can not understand the stark difference in source and directory size.
> Running diff tells me both local source tree directories are exactly the
> same.
> 
> Can anyone explain this in layman's terms?

$  LC_ALL=C du --help  | grep -E -e 'apparent|sparse|fragmentation'
-------------------------------------------------------------------
      --apparent-size   print apparent sizes, rather than disk usage; although
                          the apparent size is usually smaller, it may be
                          larger due to holes in ('sparse') files, internal
                          fragmentation, indirect blocks, and the like
  -b, --bytes           equivalent to '--apparent-size --block-size=1'

-- 
Regards
Roland Eggner

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