[Dovecot] Performance, dovecot vs tpop3d

[Kenny Dail]

> That is correct, postfix is delivering mail directly for now.
> 
> Here's what get's me.  I just setup a test, I copied the user 
> originally referenced to a test account, one that receives no 
> mail.  Here's the steps I performed.
> 
> 1.  login to test account.  the account has no indexes, just the 
> 17158 emails in the cur/ folder.  It takes dovecot ~30 seconds to 
> index the email and generate a LIST.  lsof -p <pid> shows that pop3 
> is accessing email files inside the cur/ directory
> 2.  logout, log back in immediatly, there is no re-indexing and the 
> list is available in < 1 second.
> 3.  logout, log back in 12 minutes later.  The list is returned in 
> apx 15 seconds and again in a lsof I see pop3 accessing files inside 
> the cur/ directory.
> 
> Bear in mind, this test account had 17158 emails to begin with, and 
> in step 3 it still outputted 17158 emails in the LIST.  So even with 
> no new email, it is accessing multiple files inside the cur/ 
> directory, presumably re-indexing?
> 
> Perhaps it's checking to ensure email message status's are up to date 
> in the index by just looking at the headers of the messages (total guess)?

I'm curious about your setup, what are the times when you do that with tpop3d?
17K messages makes for a huge maildir, what OS, filesystem, and how is
it attached?
-- 
Kenny Dail <kend at amigo.net>