Re: db-backed mail back end

[Lars Magne Ingebrigtsen <larsi@gnus.org>]

Karl Kleinpaste <karl@charcoal.com> writes:

>> Yes.  And that's not acceptable.  If it takes 7.5 seconds to enter a
>> group to look at the one new article, then that's too slow.  Much,
>> much, much too slow.
>
> Sorry, no, I don't buy it.
>
> Every day, people use Gnus to enter NNTP groups with 100, 500, 1000,
> or 2000 new articles to scan, sort, and maybe even read a few.  Every
> time they do this, they spend tens of seconds while threading,
> scoring, sorting, and summary generation occur.  This sort of use is
> of the all-day-every-day kind.
>
> Yet you want to optimize the case that's so far out to the edge, I
> doubt there's anyone that even actually _has_ a single group with 200K
> messages in it, against which to test the planned optimization.

I get the feeling that you think that if we make it possible to have
big groups, that'll make the rest of Gnus slower.  Or that if we spend
time making one part of Gnus faster, that we can't spend time making
other parts of Gnus faster.  That's a kinda odd thing to focus on.

I've just re-implemented `gnus-agent-get-undownloaded-list', so that
Gnus now spends 0.04 seconds in that function instead of 2.3 seconds
when entering a big group.

-- 
(domestic pets only, the antidote for overdose, milk.)
   larsi@gnus.org * Lars Magne Ingebrigtsen