ietf-nntp Single-group LIST NEWSGROUPS isn't efficient

[Russ Allbery]

Andrew Gierth <andrew at erlenstar.demon.co.uk> writes:
>>>>>> "Russ" == Russ Allbery <rra at stanford.edu> writes:

>  Russ> Section 9.4.5 (LIST NEWSGROUPS) currently contains the clause:

>  Russ>     Specifying a single group is usually very efficient for the server

>  Russ> I'm not aware of any server for which this is true.

> <raises hand>

> But it's definitely questionable whether such a statement should be
> made.

My worry is that it might encourage a client to send multiple individual
LIST NEWSGROUPS commands rather than one wildmat expression presuming that
this would be faster for the server.  For LIST ACTIVE, it probably is, but
for LIST NEWSGROUPS with INN (and I believe reference NNTP) at least, it's
considerably slower.

-- 
Russ Allbery (rra at stanford.edu)             <http://www.eyrie.org/~eagle/>