Linux source tree size difference issue

Linux source tree size difference issue

[Chris Jones]

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?


-- 

Chris Jones

Founder and Lead Software Architect
Paradise Software
chrisjones@spin.net.au

Re: Linux source tree size difference issue

[Roland Eggner]

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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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Re: Linux source tree size difference issue

[Chris Jones]

On 05/18/2013 05:44 AM, Roland Eggner wrote:
>
> $  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'
>

Thanks Roland. I figured it out in the end. Things were not as bad as
they first seemed.


Regards

-- 

Chris Jones

Founder and Lead Software Architect
Paradise Software
chrisjones@spin.net.au