[fetchmail-devel] Slow handling of large fetchid-list?

[Robert L. <r.l...@ta...>]

Hello fetchmail-devel!

I would like to get a confirmation that the following fetchmail-behaviour is
normal/the way it is implemented, or if I might be doing something wrong:

I noticed that fetchmail becomes very slow when I have had a lot of
mails downloaded, i.e. when the fetchid-file grows very large.
The numbers for one run (with no new mail) look roughly like this:

    10 lines:  0.5 sec
30.000 lines:  5.0 sec
45.000 lines: 10.0 sec
60.000 lines: 20.0 sec
90.000 lines: 70.0 sec

At first glance (at the code) it seems that the handling of this list is
suboptimal, with traversal of linked lists and stuff like that. Also it is
written [completely] a lot.

Is this over-proportional time to be expected and has anybody seen it
too, or are long id-lists working fine for everone but me?

Apologies if this is the wrong list for such a question.

Thanks a lot,
rob

PS: just FYI, I use the same id-file for several different accounts, so my
first workaround will be to split it up, so that each account has it's own
list - but still I wonder if this is a common problem.

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