[Dovecot] lmtp performance

[Joseba Torre]

On Lunes 17 Octubre 2011 16:31:01 Juan Carlos Sanchez escribió:
> A particular reply (not to the list) has told me to try:
> 
> "
> Add to service lmtp:
> process_min_avail = 20
> "
> 
> And yes, it works (unless for me), so I want to share it with everybody.
> 
> Have not exactly measured performance but this morning have seen over 
> 1400 messages/minute with lmtp under heavy load.
> 
> 
> What the "process_min_avail = 20" in service lmtp (or anywhere else) 
> exactly imply? cannot find a reference in wiki2 . I suppose it means 
> than 20 lmtp processes are always open waiting for new connections and 
> so reducing startup latency, isn't it?

I had a similar problem, and found the same solution. In my setup, only 1 lmtp 
process was available and a 2nd one never was created, so the process was 
really busy. With this parameter (I setup it to 10) I have diferent process 
and all of them are used.
-- 
Joseba Torre. Vicegerencia de TICs, área de Explotación