----- On Sep 3, 2021, at 9:01 AM, Aki Tuomi aki.tu...@open-xchange.com wrote:
>> On 03/09/2021 09:35 Tobias Oetiker <t...@oetiker.ch> wrote: >> >> >> Hi All, >> >> I spent some quality time yesterday, tuning dovecot on a server which serves >> as >> an imap-proxy in front of a zimbra setup >> the imap proxy does ldap client-cert authentication and works well. >> >> BUT >> >> I found that the imap-login processes seem to gain 100 MB per connection they >> are accepting ... this seems pretty hefty. [...] > > I would strongly recommend using "high performance" configuration on your > proxy. > > See > https://doc.dovecot.org/admin_manual/login_processes/#high-performance-mode yes that is what we have: service imap-login { service_count = 0 client_limit = 380 process_limit = 10 vsz_limit = 39G } the machine has 180 GB ram cheers tobi -- Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten, Switzerland www.oetiker.ch t...@oetiker.ch +41 62 775 9902