[Dovecot] 2.0, hourly performance stats

[Ralf Hildebrandt]

* Timo Sirainen <tss at iki.fi>:

> The managesieve-login is pretty high here too. Much worse than auth
> process. Were there tons of logins at that time? Or some brute force
> password guessing, or some other DoSing? 

No, the port is not reachable from the outside.

> Perhaps the problem is actually managesieve-login alone? Did you set
> also service managesieve-login { service_count=0 } ?
> 
> I'm currently seeing in my test machine where imaptest is runnng
> something like:
> 
> type	real	user	sys	recla	faults	swaps	bin	bout	signals	volcs	involcs
> master	1252.14	0.58	2.70	138271	0	0	0	16	0	30101	69
> anvil	1252.13	0.27	0.23	336	0	0	0	0	0	16739	6
> imap	2.34	0.11	0.20	1548	0	0	0	856	0	22	144
> imap-lo	0.11	0.00	0.80	622	0	0	0	0	0	6	19
> auth	1248.45	1.26	0.91	841	16	0	3248	0	0	51559	118
> log	1252.84	0.86	1.12	347	0	0	8	4560	0	47245	27
> config	1252.12	13.57	0.59	1061	0	0	0	0	0	36574	727
> lmtp	41.43	0.40	0.80	495	11	0	2328	0	0	25	14
> 
> The config process's high user CPU% is expected. Master is doing a lot
> of page reclaims, which I'd guess is because it's forking a lot.
> 

-- 
Ralf Hildebrandt
  Geschäftsbereich IT | Abteilung Netzwerk
  Charité - Universitätsmedizin Berlin
  Campus Benjamin Franklin
  Hindenburgdamm 30 | D-12203 Berlin
  Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962
  ralf.hildebrandt at charite.de | http://www.charite.de