Re: what mkfs.xfs options to use with dealing with many small files.

[Eric Sandeen <sandeen@xxxxxxx>]

On Thu, 2003-10-23 at 11:13, Steve Lord wrote:

> > mkfs.xfs -f -b size=2048k -d agcount=16 /dev/md0
> 
>  -b size specifies the basic block size of the filesystem, it is
>   in bytes, I do not think 2048k is going to work. Why choose 2K?
>   If you are going to switch from the default of 512 then the best
>   bet is 4096.

Not quite, -b is the filesystem block size, not the device sector size,
right?  4k default, page-sized max, 512 minimum.

If you're worried about wasted space on small files, smaller -b might
make sense, at the expense of a slightly more complex code path, I
think.

-Eric

-- 
Eric Sandeen      [C]XFS for Linux   http://oss.sgi.com/projects/xfs
sandeen@xxxxxxx   SGI, Inc.          651-683-3102