> Depends on exactly what you want, though for most likely "what you
> want"s, the answer is "no". (But see below.)
>
> By "fragments in use" do you mean
>
> 1) Fragment-sized pieces of disk with file data in them?
> 2) Blocks with some but not all fragments occupied?
> 3) Files with trailing sub-block portions?
> 4) Fragment-sized pieces of disk occupied by (3)?
Probably 1.
Of course, what I really mean is
How much does it hurt if I impose a penalty on writing fragments?
which, of course, depends on how often they are written to.
