Re: [ANN] True 1.0 - Smallest Lua module ever

[Jonathan Goble <jcgoble3@...>]

On Tue, Feb 21, 2017 at 1:36 AM Derek Bailey <dbaileychess@gmail.com> wrote:

See this dated, but informative, document on the NTFS filesystem:

https://technet.microsoft.com/en-us/library/cc781134(WS.10).asp

 Looks like files under 900 bytes are stored directly in the MFT. But each entry in the MFT is ~1Kb, so that means any file, no matter the contents (or lack thereof), takes at least 1Kb of space on disk.

On Tue, Feb 21, 2017 at 1:52 AM Dirk Laurie <dirk.laurie@gmail.com> wrote:

An inode is a fixed-size entry (say 64, 128 or 256 bytes) in an inode table.
There are some unused bytes in there. They are unused on purpose so
that most of the time you don't need a data block of (the size of say 16
inodes) for a symbolic link.  Several modern filesystems (e.g. ext4) exploit
those bytes for other tiny files too.

Thanks for clarifying the definitions. As I said, I'm not familiar with the intricacies of filesystems, as I generally don't have to deal with them. I'm glad people like you two are here to set me straight. :-)

I'm surprised that NTFS consumes a full kilobyte for each file record (although that link doesn't work for me, gives me a page cannot be found error). I thought it would be substantially less than that.

Learn something new every day.