[CentOS] question about directory size in linux..
John R Pierce
pierce at hogranch.com
Wed Feb 22 19:04:16 UTC 2017
On 2/22/2017 10:40 AM, Gordon Messmer wrote:
> On 02/22/2017 06:34 AM, Jason Welsh wrote:
>> How does the directory *itself* have a size of 2.8 megs?
>
>
> If you write a large number of directory entries in a directory, the
> directory will grow in order to provide storage for those directory
> entries. You can imagine a directory as a text file containing all of
> the file names in the directory, with references to the location of
> those files, if that helps you understand why the directory itself
> will grow.
on many modern file systems, larger directories are stored as some sort
of B-Tree or hash tree, so there's quite a lot of indexing data in there
along with the actual directory entries.
--
john r pierce, recycling bits in santa cruz
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