Re: [PLUG] ELF Init section

[LeRoy Cressy <lcressy@telocity.com>]

The default inode size is 4K while the block size can be set also when
the file system is created.

the block size defaults to 1K butyou can use the -b option to set it to
512  The butes per inode cannot be smaller than the block size, though
it is ususlly larger with 4K being the default.

gabriel rosenkoetter wrote:
> 
> On Tue, Jun 05, 2001 at 02:59:35AM -0400, Tim Peeler wrote:
> > ext2 - sizes of 1, 2 and 4k can be specified when creating the fs,
> > else it "determines" the best size, which is (in my experience)
> > almost always 4k.  I'm not sure about some of the new journaling
> > filesystems, I gather that *BSD uses 512 bytes?  I think the minix
> > filesystem and older versions of ext{1,2} did/can do 512.
> 
> Really?
> 
> I was legitimately under the impression that ext2fs used 512 byte
> blocks (Unix historical decision, btw, so yes, it's what the BSD
> fast file system and Berkeley log-structured file system as well as
> the System V derivation of ffs, unix file system, all use).
> 
> Does anyone know the reasons for a decision to shift away from this
> for ext2fs? Must one choose from 1, 2, or 4k sizes when creating a
> new ext2fs partition, or can one specify arbitrary values?
> 
> (It's quite possible to create a new ffs, lfs, or ufs file system
> with an entirely arbitrary block size other than 512 bytes, of
> course, and this is frequently a good idea, particularly when the
> file system will be backing a database system which will get a
> speed gain from having blocks of some other size. I'd expect that
> powers of 8 are probably recommended, though.)
> 
>        ~ g r @ eclipsed.net
> 
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-- 
Rev. LeRoy D. Cressy   mailto:lcressy@telocity.com   /\_/\
                       http://www.netaxs.com/~ldc   ( o.o )
                       Phone:  215-535-4037          > ^ <

Jesus saith unto him, I am the way, the truth, and the life: 
no man cometh unto the Father, but by me. (John 14:6)



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