Re: tuning, many small files, small blocksize

["Jeff Breidenbach" <jeff@xxxxxxx>]

Wow, this is quite some discussion.

I went with Hannes Dorbath's original suggestion (appended),
and am now several days into copying data onto the filesystem.
It's conceivable to change course at this point, but awkward.
Dave, you suggested biting the bullet and sacrificing capacity.
Are we talking an overwhelming difference in read performance
from random files - e.g. reducing the number of seeks by 2X?

Finally, in answer to Linda's question, I don't forsee any appends
at all. The vast majority of files will be write once, read many. A
small fraction will be re-written, e.g. new contents, same filename.
An utterly insignificant fraction will be deleted.

>mkfs.xfs -n size=16k -i attr=2 -l lazy-count=1,version=2,size=32m \
>-b size=512 /dev/sda
>
>mount -onoatime,logbufs=8,logbsize=256k /dev/sda /mnt/xfs